source: ntrip/trunk/rtcm3torinex/lib/rtcm3torinex.c@ 7636

/*
  Converter for RTCM3 data to RINEX.
  $Id: rtcm3torinex.c 6868 2015-06-01 13:05:52Z stoecker $
  Copyright (C) 2005-2012 by Dirk Stöcker <stoecker@alberding.eu>

  This software is a complete NTRIP-RTCM3 to RINEX converter as well as
  a module of the BNC tool for multiformat conversion. Contact Dirk
  Stöcker for suggestions and bug reports related to the RTCM3 to RINEX
  conversion problems and the author of BNC for all the other problems.

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  or read http://www.gnu.org/licenses/gpl.txt
*/

#include <ctype.h>
#include <errno.h>
#include <math.h>
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>

#ifndef NO_RTCM3_MAIN
#include <getopt.h>
#include <netdb.h>
#include <netinet/in.h>
#include <sys/socket.h>
#endif

#ifndef sparc
#include <stdint.h>
#endif

#ifndef isinf
#define isinf(x) 0
#endif

#include "rtcm3torinex.h"

/* CVS revision and version */
static char revisionstr[] = "$Revision: 6868 $";

#ifndef COMPILEDATE
#define COMPILEDATE " built " __DATE__
#endif

static uint32_t CRC24(long size, const unsigned char *buf)
{
  uint32_t crc = 0;
  int i;

  while(size--)
  {
    crc ^= (*buf++) << (16);
    for(i = 0; i < 8; i++)
    {
      crc <<= 1;
      if(crc & 0x1000000)
        crc ^= 0x01864cfb;
    }
  }
  return crc;
}

static int GetMessage(struct RTCM3ParserData *handle)
{
  unsigned char *m, *e;
  int i;

  m = handle->Message+handle->SkipBytes;
  e = handle->Message+handle->MessageSize;
  handle->NeedBytes = handle->SkipBytes = 0;
  while(e-m >= 3)
  {
    if(m[0] == 0xD3)
    {
      handle->size = ((m[1]&3)<<8)|m[2];
      if(e-m >= handle->size+6)
      {
        if((uint32_t)((m[3+handle->size]<<16)|(m[3+handle->size+1]<<8)
        |(m[3+handle->size+2])) == CRC24(handle->size+3, m))
        {
          handle->SkipBytes = handle->size;
          break;
        }
        else
          ++m;
      }
      else
      {
        handle->NeedBytes = handle->size+6;
        break;
      }
    }
    else
      ++m;
  }
  if(e-m < 3)
    handle->NeedBytes = 3;

  /* copy buffer to front */
  i = m - handle->Message;
  if(i && m < e)
    memmove(handle->Message, m, (size_t)(handle->MessageSize-i));
  handle->MessageSize -= i;

  return !handle->NeedBytes;
}

#define LOADBITS(a) \
{ \
  while((a) > numbits) \
  { \
    if(!size--) break; \
    bitfield = (bitfield<<8)|*(data++); \
    numbits += 8; \
  } \
}

/* extract bits from data stream
   b = variable to store result, a = number of bits */
#define GETBITS64(b, a) \
{ \
  if(((a) > 56) && ((a)-56) > numbits) \
  { \
    uint64_t x; \
    GETBITS(x, 56) \
    LOADBITS((a)-56) \
    b = ((x<<((a)-56)) | (bitfield<<(sizeof(bitfield)*8-numbits)) \
    >>(sizeof(bitfield)*8-((a)-56))); \
    numbits -= ((a)-56); \
  } \
  else \
  { \
    GETBITS(b, a) \
  } \
}

/* extract bits from data stream
   b = variable to store result, a = number of bits */
#define GETBITS(b, a) \
{ \
  LOADBITS(a) \
  b = (bitfield<<(64-numbits))>>(64-(a)); \
  numbits -= (a); \
}

/* extract bits from data stream
   b = variable to store result, a = number of bits */
#define GETBITSFACTOR(b, a, c) \
{ \
  LOADBITS(a) \
  b = ((bitfield<<(sizeof(bitfield)*8-numbits))>>(sizeof(bitfield)*8-(a)))*(c); \
  numbits -= (a); \
}

/* extract floating value from data stream
   b = variable to store result, a = number of bits */
#define GETFLOAT(b, a, c) \
{ \
  LOADBITS(a) \
  b = ((double)((bitfield<<(64-numbits))>>(64-(a))))*(c); \
  numbits -= (a); \
}

/* extract signed floating value from data stream
   b = variable to store result, a = number of bits */
#define GETFLOATSIGN(b, a, c) \
{ \
  LOADBITS(a) \
  b = ((double)(((int64_t)(bitfield<<(64-numbits)))>>(64-(a))))*(c); \
  numbits -= (a); \
}

/* extract bits from data stream
   b = variable to store result, a = number of bits */
#define GETBITSSIGN(b, a) \
{ \
  LOADBITS(a) \
  b = ((int64_t)(bitfield<<(64-numbits)))>>(64-(a)); \
  numbits -= (a); \
}

#define GETFLOATSIGNM(b, a, c) \
{ int l; \
  LOADBITS(a) \
  l = (bitfield<<(64-numbits))>>(64-1); \
  b = ((double)(((bitfield<<(64-(numbits-1))))>>(64-(a-1))))*(c); \
  numbits -= (a); \
  if(l) b *= -1.0; \
}

#define SKIPBITS(b) { LOADBITS(b) numbits -= (b); }

/* extract byte-aligned byte from data stream,
   b = variable to store size, s = variable to store string pointer */
#define GETSTRING(b, s) \
{ \
  b = *(data++); \
  s = (char *) data; \
  data += b; \
  size -= b+1; \
}

struct leapseconds { /* specify the day of leap second */
  int day;        /* this is the day, where 23:59:59 exists 2 times */
  int month;      /* not the next day! */
  int year;
  int taicount;
};
static const int months[13] = {0,31,28,31,30,31,30,31,31,30,31,30,31};
static const struct leapseconds leap[] = {
/*{31, 12, 1971, 10},*/
/*{30, 06, 1972, 11},*/
/*{31, 12, 1972, 12},*/
/*{31, 12, 1973, 13},*/
/*{31, 12, 1974, 14},*/
/*{31, 12, 1975, 15},*/
/*{31, 12, 1976, 16},*/
/*{31, 12, 1977, 17},*/
/*{31, 12, 1978, 18},*/
/*{31, 12, 1979, 19},*/
{30, 06, 1981,20},
{30, 06, 1982,21},
{30, 06, 1983,22},
{30, 06, 1985,23},
{31, 12, 1987,24},
{31, 12, 1989,25},
{31, 12, 1990,26},
{30, 06, 1992,27},
{30, 06, 1993,28},
{30, 06, 1994,29},
{31, 12, 1995,30},
{30, 06, 1997,31},
{31, 12, 1998,32},
{31, 12, 2005,33},
{31, 12, 2008,34},
{30, 06, 2012,35},
{30, 06, 2015,36},
{0,0,0,0} /* end marker */
};
#define LEAPSECONDS     17 /* only needed for approx. time */
#define GPSLEAPSTART    19 /* 19 leap seconds existed at 6.1.1980 */

static int longyear(int year, int month)
{
  if(!(year % 4) && (!(year % 400) || (year % 100)))
  {
    if(!month || month == 2)
      return 1;
  }
  return 0;
}

int gnumleap(int year, int month, int day)
{
  int ls = 0;
  const struct leapseconds *l;

  for(l = leap; l->taicount && year >= l->year; ++l)
  {
    if(year > l->year || month > l->month || (month == l->month && day > l->day))
       ls = l->taicount - GPSLEAPSTART;
  }
  return ls;
}

/* Convert Moscow time into UTC (fixnumleap == 1) or GPS (fixnumleap == 0) */
void updatetime(int *week, int *secOfWeek, int mSecOfWeek, int fixnumleap)
{
  int y,m,d,k,l, nul;
  unsigned int j = *week*(7*24*60*60) + *secOfWeek + 5*24*60*60+3*60*60;
  int glo_daynumber = 0, glo_timeofday;
  for(y = 1980; j >= (unsigned int)(k = (l = (365+longyear(y,0)))*24*60*60)
  + gnumleap(y+1,1,1); ++y)
  {
    j -= k; glo_daynumber += l;
  }
  for(m = 1; j >= (unsigned int)(k = (l = months[m]+longyear(y, m))*24*60*60)
  + gnumleap(y, m+1, 1); ++m)
  {
    j -= k; glo_daynumber += l;
  }
  for(d = 1; j >= 24UL*60UL*60UL + gnumleap(y, m, d+1); ++d)
    j -= 24*60*60;
  glo_daynumber -= 16*365+4-d;
  nul = gnumleap(y, m, d);
  glo_timeofday = j-nul;

  // original version
  // if(mSecOfWeek < 5*60*1000 && glo_timeofday > 23*60*60)
  //   *secOfWeek += 24*60*60;
  // else if(glo_timeofday < 5*60 && mSecOfWeek > 23*60*60*1000)
  //   *secOfWeek -= 24*60*60;

  // new version 
  if(mSecOfWeek < 4*60*60*1000 && glo_timeofday > 20*60*60)
    *secOfWeek += 24*60*60;
  else if(glo_timeofday < 4*60*60 && mSecOfWeek > 20*60*60*1000)
    *secOfWeek -= 24*60*60;

  *secOfWeek += mSecOfWeek/1000-glo_timeofday;
  if(fixnumleap)
    *secOfWeek -= nul;
  if(*secOfWeek < 0) {*secOfWeek += 24*60*60*7; --*week; }
  if(*secOfWeek >= 24*60*60*7) {*secOfWeek -= 24*60*60*7; ++*week; }
}

int RTCM3Parser(struct RTCM3ParserData *handle)
{
  int ret=0;

#ifdef NO_RTCM3_MAIN
  if(GetMessage(handle)) /* don't repeat */
#else
  while(!ret && GetMessage(handle))
#endif /* NO_RTCM3_MAIN */
  {
    /* using 64 bit integer types, as it is much easier than handling
    the long datatypes in 32 bit */
    uint64_t numbits = 0, bitfield = 0;
    int size = handle->size, type;
    int syncf, old = 0;
    unsigned char *data = handle->Message+3;

    GETBITS(type,12)
#ifdef NO_RTCM3_MAIN
    handle->blocktype = type;
#endif /* NO_RTCM3_MAIN */
    switch(type)
    {
#ifdef NO_RTCM3_MAIN
    default:
      ret = type;
      break;
    case 1005: case 1006:
      {
        SKIPBITS(22)
        GETBITSSIGN(handle->antX, 38)
        SKIPBITS(2)
        GETBITSSIGN(handle->antY, 38)
        SKIPBITS(2)
        GETBITSSIGN(handle->antZ, 38)
        if(type == 1006)
          GETBITS(handle->antH, 16)
        ret = type;
      }
      break;
    case 1007: case 1008: case 1033:
      {
        char *antenna;
        int antnum;

        SKIPBITS(12)
        GETSTRING(antnum,antenna)
        memcpy(handle->antenna, antenna, antnum);
        handle->antenna[antnum] = 0;
        ret = type;
      }
      break;
    case 1013:
      {
        SKIPBITS(12);
        GETBITS(handle->modjulday, 16);
        GETBITS(handle->secofday, 17);
        SKIPBITS(5);
        GETBITS(handle->leapsec, 8);
        ret = 1013;
      }
      break;
#endif /* NO_RTCM3_MAIN */
    case 1019:
      if(size == 59)
      {
        struct gpsephemeris *ge;
        int sv, i;

        ge = &handle->ephemerisGPS;
        memset(ge, 0, sizeof(*ge));

        GETBITS(sv, 6)
        ge->satellite = (sv < 40 ? sv : sv+80);
        GETBITS(ge->GPSweek, 10)
        ge->GPSweek += 1024;
        GETBITS(ge->URAindex, 4)
        GETBITS(sv, 2)
        if(sv & 1)
          ge->flags |= GPSEPHF_L2PCODE;
        if(sv & 2)
          ge->flags |= GPSEPHF_L2CACODE;
        GETFLOATSIGN(ge->IDOT, 14, R2R_PI/(double)(1<<30)/(double)(1<<13))
        GETBITS(ge->IODE, 8)
        GETBITS(ge->TOC, 16)
        ge->TOC <<= 4;
        GETFLOATSIGN(ge->clock_driftrate, 8, 1.0/(double)(1<<30)/(double)(1<<25))
        GETFLOATSIGN(ge->clock_drift, 16, 1.0/(double)(1<<30)/(double)(1<<13))
        GETFLOATSIGN(ge->clock_bias, 22, 1.0/(double)(1<<30)/(double)(1<<1))
        GETBITS(ge->IODC, 10)
        GETFLOATSIGN(ge->Crs, 16, 1.0/(double)(1<<5))
        GETFLOATSIGN(ge->Delta_n, 16, R2R_PI/(double)(1<<30)/(double)(1<<13))
        GETFLOATSIGN(ge->M0, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(ge->Cuc, 16, 1.0/(double)(1<<29))
        GETFLOAT(ge->e, 32, 1.0/(double)(1<<30)/(double)(1<<3))
        GETFLOATSIGN(ge->Cus, 16, 1.0/(double)(1<<29))
        GETFLOAT(ge->sqrt_A, 32, 1.0/(double)(1<<19))
        GETBITS(ge->TOE, 16)
        ge->TOE <<= 4;

        GETFLOATSIGN(ge->Cic, 16, 1.0/(double)(1<<29))
        GETFLOATSIGN(ge->OMEGA0, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(ge->Cis, 16, 1.0/(double)(1<<29))
        GETFLOATSIGN(ge->i0, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(ge->Crc, 16, 1.0/(double)(1<<5))
        GETFLOATSIGN(ge->omega, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(ge->OMEGADOT, 24, R2R_PI/(double)(1<<30)/(double)(1<<13))
        GETFLOATSIGN(ge->TGD, 8, 1.0/(double)(1<<30)/(double)(1<<1))
        GETBITS(ge->SVhealth, 6)
        GETBITS(sv, 1)
        if(sv)
          ge->flags |= GPSEPHF_L2PCODEDATA;
        GETBITS(sv, 1)
        if(sv)
          ge->flags |= GPSEPHF_6HOURSFIT;

        i = ((int)ge->GPSweek - (int)handle->GPSWeek)*7*24*60*60
        + ((int)ge->TOE - (int)handle->GPSTOW) - 2*60*60;
        if(i > 5*60*60 && i < 8*60*60)
        {
          handle->GPSTOW = ge->TOE;
          handle->GPSWeek = ge->GPSweek;
        }
        ge->TOW = 0.9999E9;
        ret = 1019;
      }
      break;
    case RTCM3ID_BDS:
      if(size == 62)
      {
        struct bdsephemeris *be;
        int sv, i, week, tow;
        be = &handle->ephemerisBDS;
        memset(be, 0, sizeof(*be));

        GETBITS(sv, 6)
        be->satellite = sv+PRN_BDS_START-1;
        GETBITS(be->BDSweek, 13)
        GETBITS(be->URAI, 4)
        GETFLOATSIGN(be->IDOT, 14, R2R_PI/(double)(1<<30)/(double)(1<<13))
        GETBITS(be->AODE, 5)
        GETBITS(be->TOC, 17)
        be->TOC <<= 3;
        GETFLOATSIGN(be->clock_driftrate, 11, 1.0/(double)(1<<30)/(double)(1<<30)/(double)(1<<6))
        GETFLOATSIGN(be->clock_drift, 22, 1.0/(double)(1<<30)/(double)(1<<20))
        GETFLOATSIGN(be->clock_bias, 24, 1.0/(double)(1<<30)/(double)(1<<3))
        GETBITS(be->AODC, 5)
        GETFLOATSIGN(be->Crs, 18, 1.0/(double)(1<<6))
        GETFLOATSIGN(be->Delta_n, 16, R2R_PI/(double)(1<<30)/(double)(1<<13))
        GETFLOATSIGN(be->M0, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(be->Cuc, 18, 1.0/(double)(1<<30)/(double)(1<<1))
        GETFLOAT(be->e, 32, 1.0/(double)(1<<30)/(double)(1<<3))
        GETFLOATSIGN(be->Cus, 18, 1.0/(double)(1<<30)/(double)(1<<1))
        GETFLOAT(be->sqrt_A, 32, 1.0/(double)(1<<19))
        GETBITS(be->TOE, 17)
        be->TOE <<= 3;
        GETFLOATSIGN(be->Cic, 18, 1.0/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(be->OMEGA0, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(be->Cis, 18, 1.0/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(be->i0, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(be->Crc, 18, 1.0/(double)(1<<6))
        GETFLOATSIGN(be->omega, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(be->OMEGADOT, 24, R2R_PI/(double)(1<<30)/(double)(1<<13))
        GETFLOATSIGN(be->TGD_B1_B3, 10, 0.0000000001)
        GETFLOATSIGN(be->TGD_B2_B3, 10, 0.0000000001)
        GETBITS(sv, 1)
        if(sv)
          be->flags |= BDSEPHF_SATH1;
        week = 1356+be->BDSweek;
        tow = 14+be->TOE;
        if(tow > 7*24*60*60) /* overflow due to leap */
        {
          ++week;
          tow -=  7*24*60*60;
        }
        i = (week - (int)handle->GPSWeek)*7*24*60*60
        + (tow - (int)handle->GPSTOW) - 2*60*60;
        if(i > 5*60*60 && i < 8*60*60)
        {
          handle->GPSTOW = tow;
          handle->GPSWeek = week;
        }
        ret = RTCM3ID_BDS;
        be->TOW = 0.9999E9;
      }
      break;
    case 1043:
      if(size == 27 && handle->GPSWeek)
      {
        struct sbasephemeris *gs;
        int sv, i, time, tod, day;
        gs = &handle->ephemerisSBAS;
        memset(gs, 0, sizeof(*gs));

        GETBITS(sv, 6)
        gs->satellite = PRN_SBAS_START+sv;
        GETBITS(gs->IODN, 8)
        GETBITS(time, 13)
        time <<= 4;
        gs->GPSweek_TOE = handle->GPSWeek;
        GETBITS(gs->URA, 4)
        GETFLOATSIGN(gs->x_pos, 30, 0.08)
        GETFLOATSIGN(gs->y_pos, 30, 0.08)
        GETFLOATSIGN(gs->z_pos, 25, 0.4)
        GETFLOATSIGN(gs->x_velocity, 17, 0.000625)
        GETFLOATSIGN(gs->y_velocity, 17, 0.000625)
        GETFLOATSIGN(gs->z_velocity, 18, 0.004)
        GETFLOATSIGN(gs->x_acceleration, 10, 0.0000125)
        GETFLOATSIGN(gs->y_acceleration, 10, 0.0000125)
        GETFLOATSIGN(gs->z_acceleration, 10, 0.0000625)
        GETFLOATSIGN(gs->agf0, 12, 1.0/(1<<30)/(1<<1))
        GETFLOATSIGN(gs->agf1, 8, 1.0/(1<<30)/(1<<10))

        /* calculate time */
        tod = handle->GPSTOW%(24*60*60);
        day = handle->GPSTOW/(24*60*60);
        if(time > 19*60*60 && tod < 5*60*60)
          --day;
        else if(time < 5*60*60 && tod > 19*60*60)
          ++day;
        time += day*24*60*60;
        if(time > 7*24*60*60)
          ++gs->GPSweek_TOE;
        else if(time < 0)
          --gs->GPSweek_TOE;
        gs->TOE = time;

        i = (gs->GPSweek_TOE - handle->GPSWeek)*7*24*60*60
        + (gs->TOE - handle->GPSTOW) - 2*60*60;
        if(i > 5*60*60 && i < 8*60*60)
        {
          handle->GPSTOW = gs->TOE;
          handle->GPSWeek = gs->GPSweek_TOE;
        }
        gs->TOW = 0.9999E9;
        ret = 1043;
      }
      break;
    case 1044:
      if(size == 59)
      {
        struct gpsephemeris *ge;
        int sv, i;

        ge = &handle->ephemerisGPS;
        memset(ge, 0, sizeof(*ge));

        GETBITS(sv, 4)
        ge->satellite = PRN_QZSS_START+sv-1;
        GETBITS(ge->TOC, 16)
        ge->TOC <<= 4;
        GETFLOATSIGN(ge->clock_driftrate, 8, 1.0/(double)(1<<30)/(double)(1<<25))
        GETFLOATSIGN(ge->clock_drift, 16, 1.0/(double)(1<<30)/(double)(1<<13))
        GETFLOATSIGN(ge->clock_bias, 22, 1.0/(double)(1<<30)/(double)(1<<1))
        GETBITS(ge->IODE, 8)
        GETFLOATSIGN(ge->Crs, 16, 1.0/(double)(1<<5))
        GETFLOATSIGN(ge->Delta_n, 16, R2R_PI/(double)(1<<30)/(double)(1<<13))
        GETFLOATSIGN(ge->M0, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(ge->Cuc, 16, 1.0/(double)(1<<29))
        GETFLOAT(ge->e, 32, 1.0/(double)(1<<30)/(double)(1<<3))
        GETFLOATSIGN(ge->Cus, 16, 1.0/(double)(1<<29))
        GETFLOAT(ge->sqrt_A, 32, 1.0/(double)(1<<19))
        GETBITS(ge->TOE, 16)
        ge->TOE <<= 4;
        GETFLOATSIGN(ge->Cic, 16, 1.0/(double)(1<<29))
        GETFLOATSIGN(ge->OMEGA0, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(ge->Cis, 16, 1.0/(double)(1<<29))
        GETFLOATSIGN(ge->i0, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(ge->Crc, 16, 1.0/(double)(1<<5))
        GETFLOATSIGN(ge->omega, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(ge->OMEGADOT, 24, R2R_PI/(double)(1<<30)/(double)(1<<13))
        GETFLOATSIGN(ge->IDOT, 14, R2R_PI/(double)(1<<30)/(double)(1<<13))
        GETBITS(sv, 2)
        if(sv & 1)
          ge->flags |= GPSEPHF_L2PCODE;
        if(sv & 2)
          ge->flags |= GPSEPHF_L2CACODE;
        GETBITS(ge->GPSweek, 10)
        ge->GPSweek += 1024;
        GETBITS(ge->URAindex, 4)
        GETBITS(ge->SVhealth, 6)
        GETFLOATSIGN(ge->TGD, 8, 1.0/(double)(1<<30)/(double)(1<<1))
        GETBITS(ge->IODC, 10)
        GETBITS(sv, 1)
        if(sv)
          ge->flags |= GPSEPHF_6HOURSFIT;

        i = ((int)ge->GPSweek - (int)handle->GPSWeek)*7*24*60*60
        + ((int)ge->TOE - (int)handle->GPSTOW) - 2*60*60;
        if(i > 5*60*60 && i < 8*60*60)
        {
          handle->GPSTOW = ge->TOE;
          handle->GPSWeek = ge->GPSweek;
        }
        ge->TOW = 0.9999E9;
        ret = 1044;
      }
      break;
    case 1045: case 1046:
      {
        struct galileoephemeris *ge;
        int sv;

        ge = &handle->ephemerisGALILEO;
        memset(ge, 0, sizeof(*ge));

        GETBITS(sv, 6)
        ge->satellite = sv;
        GETBITS(ge->Week, 12)
        ge->Week += 1024;
        GETBITS(ge->IODnav, 10)
        GETBITS(ge->SISA, 8)
        GETFLOATSIGN(ge->IDOT, 14, R2R_PI/(double)(1<<30)/(double)(1<<13))
        GETBITSFACTOR(ge->TOC, 14, 60)
        GETFLOATSIGN(ge->clock_driftrate, 6, 1.0/(double)(1<<30)/(double)(1<<29))
        GETFLOATSIGN(ge->clock_drift, 21, 1.0/(double)(1<<30)/(double)(1<<16))
        GETFLOATSIGN(ge->clock_bias, 31, 1.0/(double)(1<<30)/(double)(1<<4))
        GETFLOATSIGN(ge->Crs, 16, 1.0/(double)(1<<5))
        GETFLOATSIGN(ge->Delta_n, 16, R2R_PI/(double)(1<<30)/(double)(1<<13))
        GETFLOATSIGN(ge->M0, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(ge->Cuc, 16, 1.0/(double)(1<<29))
        GETFLOAT(ge->e, 32, 1.0/(double)(1<<30)/(double)(1<<3))
        GETFLOATSIGN(ge->Cus, 16, 1.0/(double)(1<<29))
        GETFLOAT(ge->sqrt_A, 32, 1.0/(double)(1<<19))
        GETBITSFACTOR(ge->TOE, 14, 60)
        GETFLOATSIGN(ge->Cic, 16, 1.0/(double)(1<<29))
        GETFLOATSIGN(ge->OMEGA0, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(ge->Cis, 16, 1.0/(double)(1<<29))
        GETFLOATSIGN(ge->i0, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(ge->Crc, 16, 1.0/(double)(1<<5))
        GETFLOATSIGN(ge->omega, 32, R2R_PI/(double)(1<<30)/(double)(1<<1))
        GETFLOATSIGN(ge->OMEGADOT, 24, R2R_PI/(double)(1<<30)/(double)(1<<13))
        GETFLOATSIGN(ge->BGD_1_5A, 10, 1.0/(double)(1<<30)/(double)(1<<2))
        if(type == 1046)
        {
          GETFLOATSIGN(ge->BGD_1_5B, 10, 1.0/(double)(1<<30)/(double)(1<<2))
          GETBITS(ge->E5bHS, 2)
          GETBITS(sv, 1)
          ge->flags |= GALEPHF_INAV;
          if(sv)
            ge->flags |= GALEPHF_E5BDINVALID;
          GETBITS(ge->E1_HS, 2)
          GETBITS(sv, 1)
          if(sv)
            ge->flags |= GALEPHF_E1DINVALID;
        }
        else
        {
          ge->flags |= GALEPHF_FNAV;
          GETBITS(ge->E5aHS, 2)
          GETBITS(sv, 1)
          if(sv)
            ge->flags |= GALEPHF_E5ADINVALID;
        }
        ret = type;
      }
      break;
    case 1020:
      if(size == 43)
      {
        struct glonassephemeris *ge;
        int i;

        ge = &handle->ephemerisGLONASS;
        memset(ge, 0, sizeof(*ge));

        ge->flags |= GLOEPHF_PAVAILABLE;
        GETBITS(ge->almanac_number, 6)
        GETBITS(i, 5)
        ge->frequency_number = i-7;
        if(ge->almanac_number >= 1 && ge->almanac_number <= PRN_GLONASS_NUM)
          handle->GLOFreq[ge->almanac_number-1] = 100+ge->frequency_number;
        GETBITS(i, 1)
        if(i)
          ge->flags |= GLOEPHF_ALMANACHEALTHY;
        GETBITS(i, 1)
        if(i)
          ge->flags |= GLOEPHF_ALMANACHEALTHOK;
        GETBITS(i, 2)
        if(i & 1)
          ge->flags |= GLOEPHF_P10TRUE;
        if(i & 2)
          ge->flags |= GLOEPHF_P11TRUE;
        GETBITS(i, 5)
        ge->tk = i*60*60;
        GETBITS(i, 6)
        ge->tk += i*60;
        GETBITS(i, 1)
        ge->tk += i*30;
        GETBITS(i, 1)
        if(i)
          ge->flags |= GLOEPHF_UNHEALTHY;
        GETBITS(i, 1)
        if(i)
          ge->flags |= GLOEPHF_P2TRUE;
        GETBITS(i, 7)
        ge->tb = i*15*60;
        GETFLOATSIGNM(ge->x_velocity, 24, 1.0/(double)(1<<20))
        GETFLOATSIGNM(ge->x_pos, 27, 1.0/(double)(1<<11))
        GETFLOATSIGNM(ge->x_acceleration, 5, 1.0/(double)(1<<30))
        GETFLOATSIGNM(ge->y_velocity, 24, 1.0/(double)(1<<20))
        GETFLOATSIGNM(ge->y_pos, 27, 1.0/(double)(1<<11))
        GETFLOATSIGNM(ge->y_acceleration, 5, 1.0/(double)(1<<30))
        GETFLOATSIGNM(ge->z_velocity, 24, 1.0/(double)(1<<20))
        GETFLOATSIGNM(ge->z_pos, 27, 1.0/(double)(1<<11))
        GETFLOATSIGNM(ge->z_acceleration, 5, 1.0/(double)(1<<30))
        GETBITS(i, 1)
        if(i)
          ge->flags |= GLOEPHF_P3TRUE;
        GETFLOATSIGNM(ge->gamma, 11, 1.0/(double)(1<<30)/(double)(1<<10))
        SKIPBITS(3) /* GLONASS-M P, GLONASS-M ln (third string) */
        GETFLOATSIGNM(ge->tau, 22, 1.0/(double)(1<<30)) /* GLONASS tau n(tb) */
        SKIPBITS(5) /* GLONASS-M delta tau n(tb) */
        GETBITS(ge->E, 5)
        /* GETBITS(b, 1) / * GLONASS-M P4 */
        /* GETBITS(b, 4) / * GLONASS-M Ft */
        /* GETBITS(b, 11) / * GLONASS-M Nt */
        /* GETBITS(b, 2) / * GLONASS-M M */
        /* GETBITS(b, 1) / * GLONASS-M The Availability of Additional Data */
        /* GETBITS(b, 11) / * GLONASS-M Na */
        /* GETFLOATSIGNM(b, 32, 1.0/(double)(1<<30)/(double)(1<<1)) / * GLONASS tau c */
        /* GETBITS(b, 5) / * GLONASS-M N4 */
        /* GETFLOATSIGNM(b, 22, 1.0/(double)(1<<30)) / * GLONASS-M tau GPS */
        /* GETBITS(b, 1) / * GLONASS-M ln (fifth string) */
        ge->GPSWeek = handle->GPSWeek;
        ge->GPSTOW = handle->GPSTOW;
        ret = 1020;
      }
      break;
    case 1001: case 1002: case 1003: case 1004:
      if(handle->GPSWeek)
      {
        int lastlockl1[64];
        int lastlockl2[64];
        struct gnssdata *gnss;
        int i, numsats, wasamb=0;

        for(i = 0; i < 64; ++i)
          lastlockl1[i] = lastlockl2[i] = 0;

        gnss = &handle->DataNew;

        SKIPBITS(12) /* id */
        GETBITS(i,30)
        if(i/1000 < (int)handle->GPSTOW - 86400)
          ++handle->GPSWeek;
        handle->GPSTOW = i/1000;
        if(gnss->week && (gnss->timeofweek != i || gnss->week
        != handle->GPSWeek))
        {
          handle->Data = *gnss;
          memset(gnss, 0, sizeof(*gnss));
          old = 1;
        }
        gnss->timeofweek = i;
        gnss->week = handle->GPSWeek;

        GETBITS(syncf,1) /* sync */
        GETBITS(numsats,5)
        SKIPBITS(4) /* smind, smint */

        while(numsats-- && gnss->numsats < GNSS_MAXSATS)
        {
          int sv, code, l1range, c,l,s,ce,le,se,amb=0;
          int fullsat, num;

          GETBITS(sv, 6)
          fullsat = sv < 40 ? sv : sv+80;
          for(num = 0; num < gnss->numsats
          && fullsat != gnss->satellites[num]; ++num)
            ;

          if(num == gnss->numsats)
            gnss->satellites[gnss->numsats++] = fullsat;

          /* L1 */
          GETBITS(code, 1);
          if(code)
          {
            c = GNSSDF_P1DATA;  ce = GNSSENTRY_P1DATA;
            l = GNSSDF_L1PDATA; le = GNSSENTRY_L1PDATA;
            s = GNSSDF_S1PDATA; se = GNSSENTRY_S1PDATA;
            gnss->codetype[num][se] = 
            gnss->codetype[num][ce] = gnss->codetype[num][le] = "1W";
          }
          else
          {
            c = GNSSDF_C1DATA;  ce = GNSSENTRY_C1DATA;
            l = GNSSDF_L1CDATA; le = GNSSENTRY_L1CDATA;
            s = GNSSDF_S1CDATA; se = GNSSENTRY_S1CDATA;
            gnss->codetype[num][se] = 
            gnss->codetype[num][ce] = gnss->codetype[num][le] = "1C";
          }
          if(!handle->info[RTCM3_MSM_GPS].type[ce])
          {
            handle->info[RTCM3_MSM_GPS].type[ce] = 
            handle->info[RTCM3_MSM_GPS].type[le] = 
            handle->info[RTCM3_MSM_GPS].type[se] = gnss->codetype[num][ce][1];
          }
          GETBITS(l1range, 24);
          GETBITSSIGN(i, 20);
          if((i&((1<<20)-1)) != 0x80000)
          {
            gnss->dataflags[num] |= (c|l);
            gnss->measdata[num][ce] = l1range*0.02;
            gnss->measdata[num][le] = l1range*0.02+i*0.0005;
          }
          GETBITS(i, 7);
          lastlockl1[sv] = i;
          if(handle->lastlockGPSl1[sv] > i || i == 0)
            gnss->dataflags2[num] |= GNSSDF2_LOCKLOSSL1;
          if(type == 1002 || type == 1004)
          {
            GETBITS(amb,8);
            if(amb && (gnss->dataflags[num] & c))
            {
              gnss->measdata[num][ce] += amb*299792.458;
              gnss->measdata[num][le] += amb*299792.458;
              ++wasamb;
            }
            GETBITS(i, 8);
            if(i)
            {
              gnss->dataflags[num] |= s;
              gnss->measdata[num][se] = i*0.25;
              i /= 4*4;
              if(i > 9) i = 9;
              else if(i < 1) i = 1;
              gnss->snrL1[num] = i;
            }
          }
          gnss->measdata[num][le] /= GPS_WAVELENGTH_L1;
          if(type == 1003 || type == 1004)
          {
            /* L2 */
            GETBITS(code,2);
            if(code)
            {
              c = GNSSDF_P2DATA;  ce = GNSSENTRY_P2DATA;
              l = GNSSDF_L2PDATA; le = GNSSENTRY_L2PDATA;
              s = GNSSDF_S2PDATA; se = GNSSENTRY_S2PDATA;
              if(code >= 2)
              {
                gnss->codetype[num][se] = 
                gnss->codetype[num][ce] = gnss->codetype[num][le] = "2W";
                gnss->dataflags2[num] |= GNSSDF2_XCORRL2;
              }
              else
              {
                gnss->codetype[num][se] = 
                gnss->codetype[num][ce] = gnss->codetype[num][le] = "2P";
              }
            }
            else
            {
              c = GNSSDF_C2DATA;  ce = GNSSENTRY_C2DATA;
              l = GNSSDF_L2CDATA; le = GNSSENTRY_L2CDATA;
              s = GNSSDF_S2CDATA; se = GNSSENTRY_S2CDATA;
              gnss->codetype[num][se] = 
              gnss->codetype[num][ce] = gnss->codetype[num][le] = "2 ";
            }
            if(!handle->info[RTCM3_MSM_GPS].type[ce])
            {
              handle->info[RTCM3_MSM_GPS].type[ce] = 
              handle->info[RTCM3_MSM_GPS].type[le] = 
              handle->info[RTCM3_MSM_GPS].type[se] = gnss->codetype[num][ce][1];
            }
            GETBITSSIGN(i,14);
            if((i&((1<<14)-1)) != 0x2000)
            {
              gnss->dataflags[num] |= c;
              gnss->measdata[num][ce] = l1range*0.02+i*0.02
              +amb*299792.458;
            }
            GETBITSSIGN(i,20);
            if((i&((1<<20)-1)) != 0x80000)
            {
              gnss->dataflags[num] |= l;
              gnss->measdata[num][le] = l1range*0.02+i*0.0005
              +amb*299792.458;
            }
            GETBITS(i,7);
            lastlockl2[sv] = i;
            if(handle->lastlockGPSl2[sv] > i || i == 0)
              gnss->dataflags2[num] |= GNSSDF2_LOCKLOSSL2;
            if(type == 1004)
            {
              GETBITS(i, 8);
              if(i)
              {
                gnss->dataflags[num] |= s;
                gnss->measdata[num][se] = i*0.25;
                i /= 4*4;
                if(i > 9) i = 9;
                else if(i < 1) i = 1;
                gnss->snrL2[num] = i;
              }
            }
            gnss->measdata[num][le] /= GPS_WAVELENGTH_L2;
          }
        }
        for(i = 0; i < 64; ++i)
        {
          handle->lastlockGPSl1[i] = lastlockl1[i];
          handle->lastlockGPSl2[i] = lastlockl2[i];
        }
        if(!syncf && !old)
        {
          handle->Data = *gnss;
          memset(gnss, 0, sizeof(*gnss));
        }
        if(!syncf || old)
        {
          if(wasamb) /* not RINEX compatible without */
            ret = 1;
          else
            ret = 2;
        }
#ifdef NO_RTCM3_MAIN
        else
          ret = type;
#endif /* NO_RTCM3_MAIN */
      }
      break;
    case 1009: case 1010: case 1011: case 1012:
      {
        int lastlockl1[64];
        int lastlockl2[64];
        struct gnssdata *gnss;
        int i, numsats;
        int wasamb=0;

        for(i = 0; i < 64; ++i)
          lastlockl1[i] = lastlockl2[i] = 0;

        gnss = &handle->DataNew;

        SKIPBITS(12) /* id */;
        GETBITS(i,27) /* tk */

        updatetime(&handle->GPSWeek, &handle->GPSTOW, i, 0); /* Moscow -> GPS */
        i = handle->GPSTOW*1000;
        if(gnss->week && (gnss->timeofweek != i || gnss->week
        != handle->GPSWeek))
        {
          handle->Data = *gnss;
          memset(gnss, 0, sizeof(*gnss));
          old = 1;
        }

        gnss->timeofweek = i;
        gnss->week = handle->GPSWeek;

        GETBITS(syncf,1) /* sync */
        GETBITS(numsats,5)

        SKIPBITS(4) /* smind, smint */

        while(numsats-- && gnss->numsats < GNSS_MAXSATS)
        {
          int sv, code, l1range, c,l,s,ce,le,se,amb=0;
          int freq;
          int fullsat, num;

          GETBITS(sv, 6)
          fullsat = sv-1 + PRN_GLONASS_START;
          for(num = 0; num < gnss->numsats
          && fullsat != gnss->satellites[num]; ++num)
            ;

          if(num == gnss->numsats)
            gnss->satellites[gnss->numsats++] = fullsat;

          /* L1 */
          GETBITS(code, 1)
          GETBITS(freq, 5)

          if(sv >= 1 && sv <= PRN_GLONASS_NUM)
            handle->GLOFreq[sv-1] = 100+freq-7;

          if(code)
          {
            c = GNSSDF_P1DATA;  ce = GNSSENTRY_P1DATA;
            l = GNSSDF_L1PDATA; le = GNSSENTRY_L1PDATA;
            s = GNSSDF_S1PDATA; se = GNSSENTRY_S1PDATA;
            gnss->codetype[num][se] = 
            gnss->codetype[num][ce] = gnss->codetype[num][le] = "1P";
          }
          else
          {
            c = GNSSDF_C1DATA;  ce = GNSSENTRY_C1DATA;
            l = GNSSDF_L1CDATA; le = GNSSENTRY_L1CDATA;
            s = GNSSDF_S1CDATA; se = GNSSENTRY_S1CDATA;
            gnss->codetype[num][se] = 
            gnss->codetype[num][ce] = gnss->codetype[num][le] = "1C";
          }
          if(!handle->info[RTCM3_MSM_GLONASS].type[ce])
          {
            handle->info[RTCM3_MSM_GLONASS].type[ce] = 
            handle->info[RTCM3_MSM_GLONASS].type[le] = 
            handle->info[RTCM3_MSM_GLONASS].type[se] = gnss->codetype[num][ce][1];
          }
          GETBITS(l1range, 25)
          GETBITSSIGN(i, 20)
          if((i&((1<<20)-1)) != 0x80000)
          {
            /* Handle this like GPS. Actually for GLONASS L1 range is always
               valid. To be on the save side, we handle it as invalid like we
               do for GPS and also remove range in case of 0x80000. */
            gnss->dataflags[num] |= (c|l);
            gnss->measdata[num][ce] = l1range*0.02;
            gnss->measdata[num][le] = l1range*0.02+i*0.0005;
          }
          GETBITS(i, 7)
          lastlockl1[sv] = i;
          if(handle->lastlockGLOl1[sv] > i || i == 0)
            gnss->dataflags2[num] |= GNSSDF2_LOCKLOSSL1;
          if(type == 1010 || type == 1012)
          {
            GETBITS(amb,7)
            if(amb && (gnss->dataflags[num] & c))
            {
              gnss->measdata[num][ce] += amb*599584.916;
              gnss->measdata[num][le] += amb*599584.916;
              ++wasamb;
            }
            GETBITS(i, 8)
            if(i)
            {
              gnss->dataflags[num] |= s;
              gnss->measdata[num][se] = i*0.25;
              i /= 4*4;
              if(i > 9) i = 9;
              else if(i < 1) i = 1;
              gnss->snrL1[num] = i;
            }
          }
          gnss->measdata[num][le] /= GLO_WAVELENGTH_L1(freq-7);
          if(type == 1011 || type == 1012)
          {
            /* L2 */
            GETBITS(code,2)
            if(code)
            {
              c = GNSSDF_P2DATA;  ce = GNSSENTRY_P2DATA;
              l = GNSSDF_L2PDATA; le = GNSSENTRY_L2PDATA;
              s = GNSSDF_S2PDATA; se = GNSSENTRY_S2PDATA;
              gnss->codetype[num][se] = 
              gnss->codetype[num][ce] = gnss->codetype[num][le] = "2P";
            }
            else
            {
              c = GNSSDF_C2DATA;  ce = GNSSENTRY_C2DATA;
              l = GNSSDF_L2CDATA; le = GNSSENTRY_L2CDATA;
              s = GNSSDF_S2CDATA; se = GNSSENTRY_S2CDATA;
              gnss->codetype[num][se] = 
              gnss->codetype[num][ce] = gnss->codetype[num][le] = "2C";
            }
            if(!handle->info[RTCM3_MSM_GLONASS].type[ce])
            {
              handle->info[RTCM3_MSM_GLONASS].type[ce] = 
              handle->info[RTCM3_MSM_GLONASS].type[le] = 
              handle->info[RTCM3_MSM_GLONASS].type[se] = gnss->codetype[num][ce][1];
            }
            GETBITSSIGN(i,14)
            if((i&((1<<14)-1)) != 0x2000)
            {
              gnss->dataflags[num] |= c;
              gnss->measdata[num][ce] = l1range*0.02+i*0.02
              +amb*599584.916;
            }
            GETBITSSIGN(i,20)
            if((i&((1<<20)-1)) != 0x80000)
            {
              gnss->dataflags[num] |= l;
              gnss->measdata[num][le] = l1range*0.02+i*0.0005
              +amb*599584.916;
            }
            GETBITS(i,7)
            lastlockl2[sv] = i;
            if(handle->lastlockGLOl2[sv] > i || i == 0)
              gnss->dataflags2[num] |= GNSSDF2_LOCKLOSSL2;
            if(type == 1012)
            {
              GETBITS(i, 8)
              if(i)
              {
                gnss->dataflags[num] |= s;
                gnss->measdata[num][se] = i*0.25;
                i /= 4*4;
                if(i > 9) i = 9;
                else if(i < 1) i = 1;
                gnss->snrL2[num] = i;
              }
            }
            gnss->measdata[num][le] /= GLO_WAVELENGTH_L2(freq-7);
          }
          if(!sv || sv > 24) /* illegal, remove it again */
            --gnss->numsats;
        }
        for(i = 0; i < 64; ++i)
        {
          handle->lastlockGLOl1[i] = lastlockl1[i];
          handle->lastlockGLOl2[i] = lastlockl2[i];
        }
        if(!syncf && !old)
        {
          handle->Data = *gnss;
          memset(gnss, 0, sizeof(*gnss));
        }
        if(!syncf || old)
        {
          if(wasamb) /* not RINEX compatible without */
            ret = 1;
          else
            ret = 2;
        }
#ifdef NO_RTCM3_MAIN
        else
          ret = type;
#endif /* NO_RTCM3_MAIN */
      }
      break;
    case 1071: case 1081: case 1091: case 1101: case 1111: case 1121:
    case 1072: case 1082: case 1092: case 1102: case 1112: case 1122:
    case 1073: case 1083: case 1093: case 1103: case 1113: case 1123:
    case 1074: case 1084: case 1094: case 1104: case 1114: case 1124:
    case 1075: case 1085: case 1095: case 1105: case 1115: case 1125:
    case 1076: case 1086: case 1096: case 1106: case 1116: case 1126:
    case 1077: case 1087: case 1097: case 1107: case 1117: case 1127:
      if(handle->GPSWeek)
      {
        struct CodeData {
          int typeR;
          int typeP;
          int typeD;
          int typeS;
          int lock;
          double wl;
          const char *code; /* currently unused */
        };
        struct CodeData gps[RTCM3_MSM_NUMSIG] =
        {
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C1DATA,GNSSENTRY_L1CDATA,GNSSENTRY_D1CDATA,
          GNSSENTRY_S1CDATA,GNSSDF2_LOCKLOSSL1,GPS_WAVELENGTH_L1,"1C"},
          {GNSSENTRY_P1DATA,GNSSENTRY_L1PDATA,GNSSENTRY_D1PDATA,
          GNSSENTRY_S1PDATA,GNSSDF2_LOCKLOSSL1,GPS_WAVELENGTH_L1,"1P"},
          {GNSSENTRY_P1DATA,GNSSENTRY_L1PDATA,GNSSENTRY_D1PDATA,
          GNSSENTRY_S1PDATA,GNSSDF2_LOCKLOSSL1,GPS_WAVELENGTH_L1,"1W"},
          {0,0,0,0,0,0,0}/*{GNSSENTRY_P1DATA,GNSSENTRY_L1PDATA,GNSSENTRY_D1PDATA,
          GNSSENTRY_S1PDATA,GNSSDF2_LOCKLOSSL1,GPS_WAVELENGTH_L1,"1Y"}*/,
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C2DATA,GNSSENTRY_L2CDATA,GNSSENTRY_D2CDATA,
          GNSSENTRY_S2CDATA,GNSSDF2_LOCKLOSSL2,GPS_WAVELENGTH_L2,"2C"},
          {GNSSENTRY_P2DATA,GNSSENTRY_L2PDATA,GNSSENTRY_D2PDATA,
          GNSSENTRY_S2PDATA,GNSSDF2_LOCKLOSSL2,GPS_WAVELENGTH_L2,"2P"},
          {GNSSENTRY_P2DATA,GNSSENTRY_L2PDATA,GNSSENTRY_D2PDATA,
          GNSSENTRY_S2PDATA,GNSSDF2_LOCKLOSSL2,GPS_WAVELENGTH_L2,"2W"},
          {0,0,0,0,0,0,0}/*{GNSSENTRY_P2DATA,GNSSENTRY_L2PDATA,GNSSENTRY_D2PDATA,
          GNSSENTRY_S2PDATA,GNSSDF2_LOCKLOSSL2,GPS_WAVELENGTH_L2,"2Y"}*/,
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C2DATA,GNSSENTRY_L2CDATA,GNSSENTRY_D2CDATA,
          GNSSENTRY_S2CDATA,GNSSDF2_LOCKLOSSL2,GPS_WAVELENGTH_L2,"2S"},
          {GNSSENTRY_C2DATA,GNSSENTRY_L2CDATA,GNSSENTRY_D2CDATA,
          GNSSENTRY_S2CDATA,GNSSDF2_LOCKLOSSL2,GPS_WAVELENGTH_L2,"2L"},
          {GNSSENTRY_C2DATA,GNSSENTRY_L2CDATA,GNSSENTRY_D2CDATA,
          GNSSENTRY_S2CDATA,GNSSDF2_LOCKLOSSL2,GPS_WAVELENGTH_L2,"2X"},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C5DATA,GNSSENTRY_L5DATA,GNSSENTRY_D5DATA,
          GNSSENTRY_S5DATA,GNSSDF2_LOCKLOSSL5,GPS_WAVELENGTH_L5,"5I"},
          {GNSSENTRY_C5DATA,GNSSENTRY_L5DATA,GNSSENTRY_D5DATA,
          GNSSENTRY_S5DATA,GNSSDF2_LOCKLOSSL5,GPS_WAVELENGTH_L5,"5Q"},
          {GNSSENTRY_C5DATA,GNSSENTRY_L5DATA,GNSSENTRY_D5DATA,
          GNSSENTRY_S5DATA,GNSSDF2_LOCKLOSSL5,GPS_WAVELENGTH_L5,"5X"},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C1NDATA,GNSSENTRY_L1NDATA,GNSSENTRY_D1NDATA,
          GNSSENTRY_S1NDATA,GNSSDF2_LOCKLOSSL1,GPS_WAVELENGTH_L1,"1S"},
          {GNSSENTRY_C1NDATA,GNSSENTRY_L1NDATA,GNSSENTRY_D1NDATA,
          GNSSENTRY_S1NDATA,GNSSDF2_LOCKLOSSL1,GPS_WAVELENGTH_L1,"1L"},
          {GNSSENTRY_C1NDATA,GNSSENTRY_L1NDATA,GNSSENTRY_D1NDATA,
          GNSSENTRY_S1NDATA,GNSSDF2_LOCKLOSSL1,GPS_WAVELENGTH_L1,"1X"}
        };
        /* NOTE: Uses 0.0, 1.0 for wavelength as sat index dependence is done later! */
        struct CodeData glo[RTCM3_MSM_NUMSIG] =
        {
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C1DATA,GNSSENTRY_L1CDATA,GNSSENTRY_D1CDATA,
          GNSSENTRY_S1CDATA,GNSSDF2_LOCKLOSSL1,0.0,"1C"},
          {GNSSENTRY_P1DATA,GNSSENTRY_L1PDATA,GNSSENTRY_D1PDATA,
          GNSSENTRY_S1PDATA,GNSSDF2_LOCKLOSSL1,0.0,"1P"},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C2DATA,GNSSENTRY_L2CDATA,GNSSENTRY_D2CDATA,
          GNSSENTRY_S2CDATA,GNSSDF2_LOCKLOSSL2,1.0,"2C"},
          {GNSSENTRY_P2DATA,GNSSENTRY_L2PDATA,GNSSENTRY_D2PDATA,
          GNSSENTRY_S2PDATA,GNSSDF2_LOCKLOSSL2,1.0,"2P"},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0}
        };
        struct CodeData gal[RTCM3_MSM_NUMSIG] =
        {
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C1DATA,GNSSENTRY_L1CDATA,GNSSENTRY_D1CDATA,
          GNSSENTRY_S1CDATA,GNSSDF2_LOCKLOSSL1,GAL_WAVELENGTH_E1,"1C"},
          {GNSSENTRY_C1DATA,GNSSENTRY_L1CDATA,GNSSENTRY_D1CDATA,
          GNSSENTRY_S1CDATA,GNSSDF2_LOCKLOSSL1,GAL_WAVELENGTH_E1,"1A"},
          {GNSSENTRY_C1DATA,GNSSENTRY_L1CDATA,GNSSENTRY_D1CDATA,
          GNSSENTRY_S1CDATA,GNSSDF2_LOCKLOSSL1,GAL_WAVELENGTH_E1,"1B"},
          {GNSSENTRY_C1DATA,GNSSENTRY_L1CDATA,GNSSENTRY_D1CDATA,
          GNSSENTRY_S1CDATA,GNSSDF2_LOCKLOSSL1,GAL_WAVELENGTH_E1,"1X"},
          {GNSSENTRY_C1DATA,GNSSENTRY_L1CDATA,GNSSENTRY_D1CDATA,
          GNSSENTRY_S1CDATA,GNSSDF2_LOCKLOSSL1,GAL_WAVELENGTH_E1,"1Z"},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C6DATA,GNSSENTRY_L6DATA,GNSSENTRY_D6DATA,
          GNSSENTRY_S6DATA,GNSSDF2_LOCKLOSSE6,GAL_WAVELENGTH_E6,"6C"},
          {GNSSENTRY_C6DATA,GNSSENTRY_L6DATA,GNSSENTRY_D6DATA,
          GNSSENTRY_S6DATA,GNSSDF2_LOCKLOSSE6,GAL_WAVELENGTH_E6,"6A"},
          {GNSSENTRY_C6DATA,GNSSENTRY_L6DATA,GNSSENTRY_D6DATA,
          GNSSENTRY_S6DATA,GNSSDF2_LOCKLOSSE6,GAL_WAVELENGTH_E6,"6B"},
          {GNSSENTRY_C6DATA,GNSSENTRY_L6DATA,GNSSENTRY_D6DATA,
          GNSSENTRY_S6DATA,GNSSDF2_LOCKLOSSE6,GAL_WAVELENGTH_E6,"6X"},
          {GNSSENTRY_C6DATA,GNSSENTRY_L6DATA,GNSSENTRY_D6DATA,
          GNSSENTRY_S6DATA,GNSSDF2_LOCKLOSSE6,GAL_WAVELENGTH_E6,"6Z"},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C5BDATA,GNSSENTRY_L5BDATA,GNSSENTRY_D5BDATA,
          GNSSENTRY_S5BDATA,GNSSDF2_LOCKLOSSE5B,GAL_WAVELENGTH_E5B,"7I"},
          {GNSSENTRY_C5BDATA,GNSSENTRY_L5BDATA,GNSSENTRY_D5BDATA,
          GNSSENTRY_S5BDATA,GNSSDF2_LOCKLOSSE5B,GAL_WAVELENGTH_E5B,"7Q"},
          {GNSSENTRY_C5BDATA,GNSSENTRY_L5BDATA,GNSSENTRY_D5BDATA,
          GNSSENTRY_S5BDATA,GNSSDF2_LOCKLOSSE5B,GAL_WAVELENGTH_E5B,"7X"},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C5ABDATA,GNSSENTRY_L5ABDATA,GNSSENTRY_D5ABDATA,
          GNSSENTRY_S5ABDATA,GNSSDF2_LOCKLOSSE5AB,GAL_WAVELENGTH_E5AB,"8I"},
          {GNSSENTRY_C5ABDATA,GNSSENTRY_L5ABDATA,GNSSENTRY_D5ABDATA,
          GNSSENTRY_S5ABDATA,GNSSDF2_LOCKLOSSE5AB,GAL_WAVELENGTH_E5AB,"8Q"},
          {GNSSENTRY_C5ABDATA,GNSSENTRY_L5ABDATA,GNSSENTRY_D5ABDATA,
          GNSSENTRY_S5ABDATA,GNSSDF2_LOCKLOSSE5AB,GAL_WAVELENGTH_E5AB,"8X"},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C5DATA,GNSSENTRY_L5DATA,GNSSENTRY_D5DATA,
          GNSSENTRY_S5DATA,GNSSDF2_LOCKLOSSL5,GAL_WAVELENGTH_E5A,"5I"},
          {GNSSENTRY_C5DATA,GNSSENTRY_L5DATA,GNSSENTRY_D5DATA,
          GNSSENTRY_S5DATA,GNSSDF2_LOCKLOSSL5,GAL_WAVELENGTH_E5A,"5Q"},
          {GNSSENTRY_C5DATA,GNSSENTRY_L5DATA,GNSSENTRY_D5DATA,
          GNSSENTRY_S5DATA,GNSSDF2_LOCKLOSSL5,GAL_WAVELENGTH_E5A,"5X"},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
        };
        struct CodeData qzss[RTCM3_MSM_NUMSIG] =
        {
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C1DATA,GNSSENTRY_L1CDATA,GNSSENTRY_D1CDATA,
          GNSSENTRY_S1CDATA,GNSSDF2_LOCKLOSSL1,GPS_WAVELENGTH_L1,"1C"},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_CSAIFDATA,GNSSENTRY_LSAIFDATA,GNSSENTRY_DSAIFDATA,
          GNSSENTRY_SSAIFDATA,GNSSDF2_LOCKLOSSSAIF,GPS_WAVELENGTH_L1,"1Z"},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_CLEXDATA,GNSSENTRY_LLEXDATA,GNSSENTRY_DLEXDATA,
          GNSSENTRY_SLEXDATA,GNSSDF2_LOCKLOSSLEX,QZSS_WAVELENGTH_LEX,"6S"},
          {GNSSENTRY_CLEXDATA,GNSSENTRY_LLEXDATA,GNSSENTRY_DLEXDATA,
          GNSSENTRY_SLEXDATA,GNSSDF2_LOCKLOSSLEX,QZSS_WAVELENGTH_LEX,"6L"},
          {GNSSENTRY_CLEXDATA,GNSSENTRY_LLEXDATA,GNSSENTRY_DLEXDATA,
          GNSSENTRY_SLEXDATA,GNSSDF2_LOCKLOSSLEX,QZSS_WAVELENGTH_LEX,"6X"},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C2DATA,GNSSENTRY_L2CDATA,GNSSENTRY_D2CDATA,
          GNSSENTRY_S2CDATA,GNSSDF2_LOCKLOSSL2,GPS_WAVELENGTH_L2,"2S"},
          {GNSSENTRY_C2DATA,GNSSENTRY_L2CDATA,GNSSENTRY_D2CDATA,
          GNSSENTRY_S2CDATA,GNSSDF2_LOCKLOSSL2,GPS_WAVELENGTH_L2,"2L"},
          {GNSSENTRY_C2DATA,GNSSENTRY_L2CDATA,GNSSENTRY_D2CDATA,
          GNSSENTRY_S2CDATA,GNSSDF2_LOCKLOSSL2,GPS_WAVELENGTH_L2,"2X"},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C5DATA,GNSSENTRY_L5DATA,GNSSENTRY_D5DATA,
          GNSSENTRY_S5DATA,GNSSDF2_LOCKLOSSL5,GPS_WAVELENGTH_L5,"5I"},
          {GNSSENTRY_C5DATA,GNSSENTRY_L5DATA,GNSSENTRY_D5DATA,
          GNSSENTRY_S5DATA,GNSSDF2_LOCKLOSSL5,GPS_WAVELENGTH_L5,"5Q"},
          {GNSSENTRY_C5DATA,GNSSENTRY_L5DATA,GNSSENTRY_D5DATA,
          GNSSENTRY_S5DATA,GNSSDF2_LOCKLOSSL5,GPS_WAVELENGTH_L5,"5X"},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_C1NDATA,GNSSENTRY_L1NDATA,GNSSENTRY_D1NDATA,
          GNSSENTRY_S1NDATA,GNSSDF2_LOCKLOSSL1,GPS_WAVELENGTH_L1,"1D"},
          {GNSSENTRY_C1NDATA,GNSSENTRY_L1NDATA,GNSSENTRY_D1NDATA,
          GNSSENTRY_S1NDATA,GNSSDF2_LOCKLOSSL1,GPS_WAVELENGTH_L1,"1P"},
          {GNSSENTRY_C1NDATA,GNSSENTRY_L1NDATA,GNSSENTRY_D1NDATA,
          GNSSENTRY_S1NDATA,GNSSDF2_LOCKLOSSL1,GPS_WAVELENGTH_L1,"1X"}
        };
        struct CodeData bds[RTCM3_MSM_NUMSIG] =
        {
          {0,0,0,0,0,0,0},
          {GNSSENTRY_CB1DATA,GNSSENTRY_LB1DATA,GNSSENTRY_DB1DATA,
          GNSSENTRY_SB1DATA,GNSSDF2_LOCKLOSSB1,BDS_WAVELENGTH_B1,"1I"},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_CB3DATA,GNSSENTRY_LB3DATA,GNSSENTRY_DB3DATA,
          GNSSENTRY_SB3DATA,GNSSDF2_LOCKLOSSB3,BDS_WAVELENGTH_B3,"6I"},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {GNSSENTRY_CB2DATA,GNSSENTRY_LB2DATA,GNSSENTRY_DB2DATA,
          GNSSENTRY_SB2DATA,GNSSDF2_LOCKLOSSB2,BDS_WAVELENGTH_B2,"7I"},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
          {0,0,0,0,0,0,0},
        };

        int sys = RTCM3_MSM_GPS, i=0, count, j, old = 0, wasnoamb = 0,
        start=PRN_GPS_START;
        int syncf, sigmask, numsat = 0, numsig = 0, numcells;
        uint64_t satmask, cellmask, ui;
        double rrmod[RTCM3_MSM_NUMSAT];
        int rrint[RTCM3_MSM_NUMSAT], rdop[RTCM3_MSM_NUMSAT],
        extsat[RTCM3_MSM_NUMSAT];
        int ll[RTCM3_MSM_NUMCELLS]/*, hc[RTCM3_MSM_NUMCELLS]*/;
        double cnr[RTCM3_MSM_NUMCELLS];
        double cp[RTCM3_MSM_NUMCELLS], psr[RTCM3_MSM_NUMCELLS],
        dop[RTCM3_MSM_NUMCELLS];
        struct gnssdata *gnss = &handle->DataNew;

        SKIPBITS(12)
        if(type >= 1121)
        {
          sys = RTCM3_MSM_BDS;
          start = PRN_BDS_START;
        }
        else if(type >= 1111)
        {
          sys = RTCM3_MSM_QZSS;
          start = PRN_QZSS_START;
        }
        else if(type >= 1101)
        {
          sys = RTCM3_MSM_SBAS;
          start = PRN_SBAS_START;
        }
        else if(type >= 1091)
        {
          sys = RTCM3_MSM_GALILEO;
          start = PRN_GALILEO_START;
        }
        else if(type >= 1081)
        {
          sys = RTCM3_MSM_GLONASS;
          start = PRN_GLONASS_START;
        }

        for(i = 0; i < RTCM3_MSM_NUMSAT; ++i)
          extsat[i] = 15;

        switch(sys)
        {
        case RTCM3_MSM_BDS:
          GETBITS(i,30)
          i += 14000;
          if(i >= 7*24*60*60*1000)
            i -= 7*24*60*60*1000;
          if(i/1000 < (int)handle->GPSTOW - 86400)
            ++handle->GPSWeek;
          handle->GPSTOW = i/1000;
          break;
        case RTCM3_MSM_GALILEO: /* use DF004 instead of DF248 */
        case RTCM3_MSM_QZSS:
        case RTCM3_MSM_SBAS:
        case RTCM3_MSM_GPS:
          GETBITS(i,30)
          if(i/1000 < (int)handle->GPSTOW - 86400)
            ++handle->GPSWeek;
          handle->GPSTOW = i/1000;
          break;
        case RTCM3_MSM_GLONASS:
          SKIPBITS(3)
          GETBITS(i,27) /* tk */

          updatetime(&handle->GPSWeek, &handle->GPSTOW, i, 0); /* Moscow -> GPS */
          i = handle->GPSTOW*1000;
          break;
        }

        if(gnss->week && (gnss->timeofweek != i || gnss->week
        != handle->GPSWeek))
        {
          handle->Data = *gnss;
          memset(gnss, 0, sizeof(*gnss));
          old = 1;
        }
        gnss->timeofweek = i;
        gnss->week = handle->GPSWeek;

        GETBITS(syncf, 1)
        SKIPBITS(3+7+2+2+1+3)
        GETBITS64(satmask, RTCM3_MSM_NUMSAT)

        /* http://gurmeetsingh.wordpress.com/2008/08/05/fast-bit-counting-routines/ */
        for(ui = satmask; ui; ui &= (ui - 1) /* remove rightmost bit */)
          ++numsat;
        GETBITS(sigmask, RTCM3_MSM_NUMSIG)
        for(i = sigmask; i; i &= (i - 1) /* remove rightmost bit */)
          ++numsig;
        i = numsat*numsig;
        GETBITS64(cellmask, (unsigned)i)

        switch(type % 10)
        {
        case 1: case 2: case 3:
          ++wasnoamb;
          for(j = numsat; j--;)
            GETFLOAT(rrmod[j], 10, 1.0/1024.0)
          break;
        case 4: case 6:
          for(j = numsat; j--;)
            GETBITS(rrint[j], 8)
          for(j = numsat; j--;)
            GETFLOAT(rrmod[j], 10, 1.0/1024.0)
          break;
        case 5: case 7:
          for(j = numsat; j--;)
            GETBITS(rrint[j], 8)
          for(j = numsat; j--;)
            GETBITS(extsat[j], 4)
          for(j = numsat; j--;)
            GETFLOAT(rrmod[j], 10, 1.0/1024.0)
          for(j = numsat; j--;)
            GETBITSSIGN(rdop[j], 14)
          break;
        }

        numcells = numsat*numsig;
        if(numcells <= RTCM3_MSM_NUMCELLS)
        {
          switch(type % 10)
          {
          case 1:
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOATSIGN(psr[count], 15, 1.0/(1<<24))
            break;
          case 2:
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOATSIGN(cp[count], 22, 1.0/(1<<29))
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETBITS(ll[count], 4)
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                SKIPBITS(1)/*GETBITS(hc[count], 1)*/
            break;
          case 3:
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOATSIGN(psr[count], 15, 1.0/(1<<24))
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOATSIGN(cp[count], 22, 1.0/(1<<29))
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETBITS(ll[count], 4)
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                SKIPBITS(1)/*GETBITS(hc[count], 1)*/
            break;
          case 4:
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOATSIGN(psr[count], 15, 1.0/(1<<24))
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOATSIGN(cp[count], 22, 1.0/(1<<29))
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETBITS(ll[count], 4)
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                SKIPBITS(1)/*GETBITS(hc[count], 1)*/
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETBITS(cnr[count], 6)
            break;
          case 5:
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOATSIGN(psr[count], 15, 1.0/(1<<24))
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOATSIGN(cp[count], 22, 1.0/(1<<29))
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETBITS(ll[count], 4)
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                SKIPBITS(1)/*GETBITS(hc[count], 1)*/
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOAT(cnr[count], 6, 1.0)
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOATSIGN(dop[count], 15, 0.0001)
            break;
          case 6:
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOATSIGN(psr[count], 20, 1.0/(1<<29))
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOATSIGN(cp[count], 24, 1.0/(1U<<31))
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETBITS(ll[count], 10)
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                SKIPBITS(1)/*GETBITS(hc[count], 1)*/
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOAT(cnr[count], 10, 1.0/(1<<4))
            break;
          case 7:
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOATSIGN(psr[count], 20, 1.0/(1<<29))
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOATSIGN(cp[count], 24, 1.0/(1U<<31))
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETBITS(ll[count], 10)
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                SKIPBITS(1)/*GETBITS(hc[count], 1)*/
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOAT(cnr[count], 10, 1.0/(1<<4))
            for(count = numcells; count--;)
              if(cellmask & (UINT64(1)<<count))
                GETFLOATSIGN(dop[count], 15, 0.0001)
            break;
          }
          i = RTCM3_MSM_NUMSAT;
          j = -1;
          for(count = numcells; count--;)
          {
            while(j >= 0 && !(sigmask&(1<<--j)))
              ;
            if(j < 0)
            {
              while(!(satmask&(UINT64(1)<<(--i)))) /* next satellite */
                ;
              j = RTCM3_MSM_NUMSIG;
              while(!(sigmask&(1<<--j)))
                ;
              --numsat;
            }
            if(cellmask & (UINT64(1)<<count))
            {
              struct CodeData cd = {0,0,0,0,0,0,0};
              double wl = 0.0;
              switch(sys)
              {
              case RTCM3_MSM_QZSS:
                cd = qzss[RTCM3_MSM_NUMSIG-j-1];
                wl = cd.wl;
                break;
              case RTCM3_MSM_BDS:
                cd = bds[RTCM3_MSM_NUMSIG-j-1];
                wl = cd.wl;
                break;
              case RTCM3_MSM_GPS:  case RTCM3_MSM_SBAS:
                cd = gps[RTCM3_MSM_NUMSIG-j-1];
                wl = cd.wl;
                break;
              case RTCM3_MSM_GLONASS: cd = glo[RTCM3_MSM_NUMSIG-j-1];
                {
                  int k = handle->GLOFreq[RTCM3_MSM_NUMSAT-i-1];
                  if(!k && extsat[numsat] < 14)
                  {
                    k = handle->GLOFreq[RTCM3_MSM_NUMSAT-i-1]
                    = 100+extsat[numsat]-7;
                  }
                  if(k)
                  {
                    if(cd.wl == 0.0)
                      wl = GLO_WAVELENGTH_L1(k-100);
                    else if(cd.wl == 1.0)
                      wl = GLO_WAVELENGTH_L2(k-100);
                  }
                }
                break;
              case RTCM3_MSM_GALILEO: cd = gal[RTCM3_MSM_NUMSIG-j-1];
                wl = cd.wl;
                break;
              }
              if(cd.lock && wl) /* lock cannot have a valid zero value */
              {
                int fullsat = RTCM3_MSM_NUMSAT-i-1, num;

                if(sys == RTCM3_MSM_GALILEO && fullsat >= 50 && fullsat <= 51)
                  fullsat += PRN_GIOVE_START-50;
                else
                  fullsat += start;

                for(num = 0; num < gnss->numsats
                && fullsat != gnss->satellites[num]; ++num)
                  ;

                if(num == gnss->numsats)
                  gnss->satellites[gnss->numsats++] = fullsat;

                gnss->codetype[num][cd.typeR] = 
                gnss->codetype[num][cd.typeP] = 
                gnss->codetype[num][cd.typeD] = 
                gnss->codetype[num][cd.typeS] = cd.code;
                if(!handle->info[sys].type[cd.typeR])
                {
                  handle->info[sys].type[cd.typeR] = 
                  handle->info[sys].type[cd.typeP] = 
                  handle->info[sys].type[cd.typeD] = 
                  handle->info[sys].type[cd.typeS] = cd.code[1];
                }

                switch(type % 10)
                {
                case 1:
                  if(psr[count] > -1.0/(1<<10))
                  {
                    gnss->measdata[num][cd.typeR] = psr[count]*LIGHTSPEED/1000.0
                    +(rrmod[numsat])*LIGHTSPEED/1000.0;
                    gnss->dataflags[num] |= (1LL<<cd.typeR);
                  }
                  break;
                case 2:
                  if(wl && cp[count] > -1.0/(1<<8))
                  {
                    gnss->measdata[num][cd.typeP] = cp[count]*LIGHTSPEED/1000.0/wl
                    +(rrmod[numsat])*LIGHTSPEED/1000.0/wl;
                    if(handle->lastlockmsm[j][i] > ll[count])
                      gnss->dataflags2[num] |= cd.lock;
                    handle->lastlockmsm[j][i] = ll[count] > 255 ? 255 : ll[count];
                    gnss->dataflags[num] |= (1LL<<cd.typeP);
                  }
                  break;
                case 3:
                  if(psr[count] > -1.0/(1<<10))
                  {
                    gnss->measdata[num][cd.typeR] = psr[count]*LIGHTSPEED/1000.0
                    +(rrmod[numsat])*LIGHTSPEED/1000.0;
                    gnss->dataflags[num] |= (1LL<<cd.typeR);
                  }

                  if(wl && cp[count] > -1.0/(1<<8))
                  {
                    gnss->measdata[num][cd.typeP] = cp[count]*LIGHTSPEED/1000.0/wl
                    +(rrmod[numsat]+rrint[numsat])*LIGHTSPEED/1000.0/wl;
                    if(handle->lastlockmsm[j][i] > ll[count])
                      gnss->dataflags2[num] |= cd.lock;
                    handle->lastlockmsm[j][i] = ll[count] > 255 ? 255 : ll[count];
                    gnss->dataflags[num] |= (1LL<<cd.typeP);
                  }
                  break;
                case 4:
                  if(psr[count] > -1.0/(1<<10))
                  {
                    gnss->measdata[num][cd.typeR] = psr[count]*LIGHTSPEED/1000.0
                    +(rrmod[numsat]+rrint[numsat])*LIGHTSPEED/1000.0;
                    gnss->dataflags[num] |= (1LL<<cd.typeR);
                  }

                  if(wl && cp[count] > -1.0/(1<<8))
                  {
                    gnss->measdata[num][cd.typeP] = cp[count]*LIGHTSPEED/1000.0/wl
                    +(rrmod[numsat]+rrint[numsat])*LIGHTSPEED/1000.0/wl;
                    if(handle->lastlockmsm[j][i] > ll[count])
                      gnss->dataflags2[num] |= cd.lock;
                    handle->lastlockmsm[j][i] = ll[count] > 255 ? 255 : ll[count];
                    gnss->dataflags[num] |= (1LL<<cd.typeP);
                  }

                  gnss->measdata[num][cd.typeS] = cnr[count];
                    gnss->dataflags[num] |= (1LL<<cd.typeS);
                  break;
                case 5:
                  if(psr[count] > -1.0/(1<<10))
                  {
                    gnss->measdata[num][cd.typeR] = psr[count]*LIGHTSPEED/1000.0
                    +(rrmod[numsat]+rrint[numsat])*LIGHTSPEED/1000.0;
                    gnss->dataflags[num] |= (1LL<<cd.typeR);
                  }

                  if(wl && cp[count] > -1.0/(1<<8))
                  {
                    gnss->measdata[num][cd.typeP] = cp[count]*LIGHTSPEED/1000.0/wl
                    +(rrmod[numsat]+rrint[numsat])*LIGHTSPEED/1000.0/wl;
                    if(handle->lastlockmsm[j][i] > ll[count])
                      gnss->dataflags2[num] |= cd.lock;
                    handle->lastlockmsm[j][i] = ll[count] > 255 ? 255 : ll[count];
                    gnss->dataflags[num] |= (1LL<<cd.typeP);
                  }

                  gnss->measdata[num][cd.typeS] = cnr[count];
                    gnss->dataflags[num] |= (1<<cd.typeS);

                  if(dop[count] > -1.6384)
                  {
                    gnss->measdata[num][cd.typeD] = -(dop[count]
                    +rdop[numsat])/wl;
                    gnss->dataflags[num] |= (1LL<<cd.typeD);
                  }
                  break;
                case 6:
                  if(psr[count] > -1.0/(1<<10))
                  {
                    gnss->measdata[num][cd.typeR] = psr[count]*LIGHTSPEED/1000.0
                    +(rrmod[numsat]+rrint[numsat])*LIGHTSPEED/1000.0;
                    gnss->dataflags[num] |= (1LL<<cd.typeR);
                  }

                  if(wl && cp[count] > -1.0/(1<<8))
                  {
                    gnss->measdata[num][cd.typeP] = cp[count]*LIGHTSPEED/1000.0/wl
                    +(rrmod[numsat]+rrint[numsat])*LIGHTSPEED/1000.0/wl;
                    if(handle->lastlockmsm[j][i] > ll[count])
                      gnss->dataflags2[num] |= cd.lock;
                    handle->lastlockmsm[j][i] = ll[count] > 255 ? 255 : ll[count];
                    gnss->dataflags[num] |= (1LL<<cd.typeP);
                  }

                  gnss->measdata[num][cd.typeS] = cnr[count];
                    gnss->dataflags[num] |= (1LL<<cd.typeS);
                  break;
                case 7:
                  if(psr[count] > -1.0/(1<<10))
                  {
                    gnss->measdata[num][cd.typeR] = psr[count]*LIGHTSPEED/1000.0
                    +(rrmod[numsat]+rrint[numsat])*LIGHTSPEED/1000.0;
                    gnss->dataflags[num] |= (1LL<<cd.typeR);
                  }

                  if(wl && cp[count] > -1.0/(1<<8))
                  {
                    gnss->measdata[num][cd.typeP] = cp[count]*LIGHTSPEED/1000.0/wl
                    +(rrmod[numsat]+rrint[numsat])*LIGHTSPEED/1000.0/wl;
                    if(handle->lastlockmsm[j][i] > ll[count])
                      gnss->dataflags2[num] |= cd.lock;
                    handle->lastlockmsm[j][i] = ll[count] > 255 ? 255 : ll[count];
                    gnss->dataflags[num] |= (1LL<<cd.typeP);
                  }

                  gnss->measdata[num][cd.typeS] = cnr[count];
                    gnss->dataflags[num] |= (1LL<<cd.typeS);

                  if(dop[count] > -1.6384)
                  {
                    gnss->measdata[num][cd.typeD] = -(dop[count]
                    +rdop[numsat])/wl;
                    gnss->dataflags[num] |= (1LL<<cd.typeD);
                  }
                  break;
                }
              }
            }
          }
        }
        if(!syncf && !old)
        {
          handle->Data = *gnss;
          memset(gnss, 0, sizeof(*gnss));
        }
        if(!syncf || old)
        {
          if(!wasnoamb) /* not RINEX compatible without */
            ret = 1;
          else
            ret = 2;
        }
#ifdef NO_RTCM3_MAIN
        else
          ret = type;
#endif /* NO_RTCM3_MAIN */
      }
      break;
    }
  }
  return ret;
}

struct Header
{
  const char *version;
  const char *pgm;
  const char *marker;
  const char *markertype;
  const char *observer;
  const char *receiver;
  const char *antenna;
  const char *position;
  const char *antennaposition;
  const char *wavelength;
  const char *typesofobs; /* should not be modified outside */
  const char *typesofobsG; /* should not be modified outside */
  const char *typesofobsR; /* should not be modified outside */
  const char *typesofobsS; /* should not be modified outside */
  const char *typesofobsE; /* should not be modified outside */
  const char *typesofobsC; /* should not be modified outside */
  const char *typesofobsJ; /* should not be modified outside */
  const char *timeoffirstobs; /* should not be modified outside */
};

#define MAXHEADERLINES 50
#define MAXHEADERBUFFERSIZE 4096
struct HeaderData
{
  union
  {
    struct Header named;
    const char *unnamed[MAXHEADERLINES];
  } data;
  int  numheaders;
};

void converttime(struct converttimeinfo *c, int week, int tow)
{
  int i, k, doy, j; /* temporary variables */
  j = week*(7*24*60*60) + tow + 5*24*60*60;
  for(i = 1980; j >= (k = (365+longyear(i,0))*24*60*60); ++i)
    j -= k;
  c->year = i;
  doy = 1+ (j / (24*60*60));
  j %= (24*60*60);
  c->hour = j / (60*60);
  j %= (60*60);
  c->minute = j / 60;
  c->second = j % 60;
  j = 0;
  for(i = 1; j + (k = months[i] + longyear(c->year,i)) < doy; ++i)
    j += k;
  c->month = i;
  c->day = doy - j;
}

void converttimebds(struct converttimeinfo *c, int week, int tow)
{
  int i, k, doy, j; /* temporary variables */
  j = week*(7*24*60*60) + tow;
  for(i = 2006; j >= (k = (365+longyear(i,0))*24*60*60); ++i)
    j -= k;
  c->year = i;
  doy = 1+ (j / (24*60*60));
  j %= (24*60*60);
  c->hour = j / (60*60);
  j %= (60*60);
  c->minute = j / 60;
  c->second = j % 60;
  j = 0;
  for(i = 1; j + (k = months[i] + longyear(c->year,i)) < doy; ++i)
    j += k;
  c->month = i;
  c->day = doy - j;
}

#ifndef NO_RTCM3_MAIN
void RTCM3Error(const char *fmt, ...)
{
  va_list v;
  va_start(v, fmt);
  vfprintf(stderr, fmt, v);
  va_end(v);
}
#endif

void RTCM3Text(const char *fmt, ...)
{
  va_list v;
  va_start(v, fmt);
  vprintf(fmt, v);
  va_end(v);
}

static void fixrevision(void)
{
  if(revisionstr[0] == '$')
  {
    char *a;
    int i=sizeof(RTCM3TORINEX_VERSION); /* set version to 1.<revision> */
    strcpy(revisionstr, RTCM3TORINEX_VERSION ".");
    for(a = revisionstr+11; *a && *a != ' '; ++a)
      revisionstr[i++] = *a;
    revisionstr[i] = 0;
  }
}

static int HandleRunBy(char *buffer, int buffersize, const char **u,
int rinex3)
{
  const char *user;
  time_t t;
  struct tm * t2;

#ifdef NO_RTCM3_MAIN
  fixrevision();
#endif

  user= getenv("USER");
  if(!user) user = "";
  t = time(&t);
  t2 = gmtime(&t);
  if(u) *u = user;
  if(rinex3)
  {
    return 1+snprintf(buffer, buffersize,
    "RTCM3TORINEX %-7.7s%-20.20s%04d%02d%02d %02d%02d%02d UTC "
    "PGM / RUN BY / DATE", revisionstr, user, 1900+t2->tm_year,
    t2->tm_mon+1, t2->tm_mday, t2->tm_hour, t2->tm_min, t2->tm_sec);
  }
  else
  {
    return 1+snprintf(buffer, buffersize,
    "RTCM3TORINEX %-7.7s%-20.20s%04d-%02d-%02d %02d:%02d    "
    "PGM / RUN BY / DATE", revisionstr, user, 1900+t2->tm_year,
    t2->tm_mon+1, t2->tm_mday, t2->tm_hour, t2->tm_min);
  }
}

#ifdef NO_RTCM3_MAIN
#define NUMSTARTSKIP 1
#else
#define NUMSTARTSKIP 3
#endif

int HandleObsHeader(struct RTCM3ParserData *Parser, char *buffer,
size_t buffersize, struct HeaderData *hdata)
{
  int buffersizeold = buffersize;
  int i, modified = 0;

  if(Parser->rinex3)
  {
    int flags;
#define CHECKFLAGSNEW(a, b, c) \
    if(flags & GNSSDF_##b##DATA) \
    { \
      int new = hdata ? 1 : 0; \
      if(!hdata) /* check if already known */ \
      { \
        int ic; \
        for(ic = 0; ic < Parser->info[RTCM3_MSM_##a].numtypes \
        && Parser->info[RTCM3_MSM_##a].flags[ic] != GNSSDF_##b##DATA; ++ic) \
          ; \
        if(ic == Parser->info[RTCM3_MSM_##a].numtypes) \
          new = 1; \
      } \
      if(new) \
      { \
        Parser->info[RTCM3_MSM_##a].flags[Parser->info[RTCM3_MSM_##a].numtypes] \
        = GNSSDF_##b##DATA; \
        Parser->info[RTCM3_MSM_##a].pos[Parser->info[RTCM3_MSM_##a].numtypes] \
        = GNSSENTRY_##b##DATA; \
        if(Parser->info[RTCM3_MSM_##a].type[GNSSENTRY_##b##DATA]) \
        { \
          snprintf(Parser->fieldbuffer##a+4*Parser->info[RTCM3_MSM_##a].numtypes, \
          sizeof(Parser->fieldbuffer##a)-4*Parser->info[RTCM3_MSM_##a].numtypes, \
          " %-2.2s%c", #c, Parser->info[RTCM3_MSM_##a].type[GNSSENTRY_##b##DATA]); \
        } \
        else \
        { \
          snprintf(Parser->fieldbuffer##a+4*Parser->info[RTCM3_MSM_##a].numtypes, \
          sizeof(Parser->fieldbuffer##a)-4*Parser->info[RTCM3_MSM_##a].numtypes, \
          " %-3s", #c); \
        } \
        ++Parser->info[RTCM3_MSM_##a].numtypes; \
        ++modified; \
      } \
    }

#define INITFLAGS(a) \
    flags = Parser->startflags; \
    modified = 0; \
    for(i = 0; i < Parser->Data.numsats; ++i) \
    { \
      if(Parser->Data.satellites[i] >= PRN_##a##_START \
      && Parser->Data.satellites[i] <= PRN_##a##_END) \
        flags |= Parser->Data.dataflags[i]; \
    }

    INITFLAGS(SBAS)
    CHECKFLAGSNEW(SBAS, C1,  C1C)
    CHECKFLAGSNEW(SBAS, L1C, L1C)
    CHECKFLAGSNEW(SBAS, D1C, D1C)
    CHECKFLAGSNEW(SBAS, S1C, S1C)
    CHECKFLAGSNEW(SBAS, C5,  C5)
    CHECKFLAGSNEW(SBAS, L5,  L5)
    CHECKFLAGSNEW(SBAS, D5,  D5)
    CHECKFLAGSNEW(SBAS, S5,  S5)

    if(modified)
    {
      if(hdata)
        hdata->data.named.typesofobsS = buffer;
      i = 1+snprintf(buffer, buffersize,
      "S  %3d%-52.52s  SYS / # / OBS TYPES",
      Parser->info[RTCM3_MSM_SBAS].numtypes, Parser->fieldbufferSBAS);
      buffer += i; buffersize -= i;
    }

    INITFLAGS(GPS)
    CHECKFLAGSNEW(GPS, C1,  C1C)
    CHECKFLAGSNEW(GPS, L1C, L1C)
    CHECKFLAGSNEW(GPS, D1C, D1C)
    CHECKFLAGSNEW(GPS, S1C, S1C)
    CHECKFLAGSNEW(GPS, P1,  C1W)
    CHECKFLAGSNEW(GPS, L1P, L1W)
    CHECKFLAGSNEW(GPS, D1P, D1W)
    CHECKFLAGSNEW(GPS, S1P, S1W)
    CHECKFLAGSNEW(GPS, C5,  C5)
    CHECKFLAGSNEW(GPS, L5,  L5)
    CHECKFLAGSNEW(GPS, D5,  D5)
    CHECKFLAGSNEW(GPS, S5,  S5)
    CHECKFLAGSNEW(GPS, P2,  C2W)
    CHECKFLAGSNEW(GPS, L2P, L2W)
    CHECKFLAGSNEW(GPS, D2P, D2W)
    CHECKFLAGSNEW(GPS, S2P, S2W)
    CHECKFLAGSNEW(GPS, C2,  C2)
    CHECKFLAGSNEW(GPS, L2C, L2)
    CHECKFLAGSNEW(GPS, D2C, D2)
    CHECKFLAGSNEW(GPS, S2C, S2)
    CHECKFLAGSNEW(GPS, C1N, C1)
    CHECKFLAGSNEW(GPS, L1N, L1)
    CHECKFLAGSNEW(GPS, D1N, D1)
    CHECKFLAGSNEW(GPS, S1N, S1)

    if(modified)
    {
      if(hdata)
        hdata->data.named.typesofobsG = buffer;
      i = 1+snprintf(buffer, buffersize,
      "G  %3d%-52.52s  SYS / # / OBS TYPES",
      Parser->info[RTCM3_MSM_GPS].numtypes, Parser->fieldbufferGPS);
      if(Parser->info[RTCM3_MSM_GPS].numtypes>13)
      {
        i += snprintf(buffer+i-1, buffersize,
        "\n      %-52.52s  SYS / # / OBS TYPES", Parser->fieldbufferGPS+13*4);
      }
      buffer += i; buffersize -= i;
    }

    INITFLAGS(GLONASS)
    CHECKFLAGSNEW(GLONASS, C1,  C1C)
    CHECKFLAGSNEW(GLONASS, L1C, L1C)
    CHECKFLAGSNEW(GLONASS, D1C, D1C)
    CHECKFLAGSNEW(GLONASS, S1C, S1C)
    CHECKFLAGSNEW(GLONASS, P1,  C1P)
    CHECKFLAGSNEW(GLONASS, L1P, L1P)
    CHECKFLAGSNEW(GLONASS, D1P, D1P)
    CHECKFLAGSNEW(GLONASS, S1P, S1P)
    CHECKFLAGSNEW(GLONASS, P2,  C2P)
    CHECKFLAGSNEW(GLONASS, L2P, L2P)
    CHECKFLAGSNEW(GLONASS, D2P, D2P)
    CHECKFLAGSNEW(GLONASS, S2P, S2P)
    CHECKFLAGSNEW(GLONASS, C2,  C2C)
    CHECKFLAGSNEW(GLONASS, L2C, L2C)
    CHECKFLAGSNEW(GLONASS, D2C, D2C)
    CHECKFLAGSNEW(GLONASS, S2C, S2C)

    if(modified)
    {
      if(hdata)
        hdata->data.named.typesofobsR = buffer;
      i = 1+snprintf(buffer, buffersize,
      "R  %3d%-52.52s  SYS / # / OBS TYPES",
      Parser->info[RTCM3_MSM_GLONASS].numtypes, Parser->fieldbufferGLONASS);
      if(Parser->info[RTCM3_MSM_GLONASS].numtypes>13)
      {
        i += snprintf(buffer+i-1, buffersize,
        "\n      %-52.52s  SYS / # / OBS TYPES", Parser->fieldbufferGLONASS+13*4);
      }
      buffer += i; buffersize -= i;
    }

    INITFLAGS(GALGIO)
    CHECKFLAGSNEW(GALILEO, C1,   C1)
    CHECKFLAGSNEW(GALILEO, L1C,  L1)
    CHECKFLAGSNEW(GALILEO, D1C,  D1)
    CHECKFLAGSNEW(GALILEO, S1C,  S1)
    CHECKFLAGSNEW(GALILEO, C6,   C6)
    CHECKFLAGSNEW(GALILEO, L6,   L6)
    CHECKFLAGSNEW(GALILEO, D6,   D6)
    CHECKFLAGSNEW(GALILEO, S6,   S6)
    CHECKFLAGSNEW(GALILEO, C5,   C5)
    CHECKFLAGSNEW(GALILEO, L5,   L5)
    CHECKFLAGSNEW(GALILEO, D5,   D5)
    CHECKFLAGSNEW(GALILEO, S5,   S5)
    CHECKFLAGSNEW(GALILEO, C5B,  C7)
    CHECKFLAGSNEW(GALILEO, L5B,  L7)
    CHECKFLAGSNEW(GALILEO, D5B,  D7)
    CHECKFLAGSNEW(GALILEO, S5B,  S7)
    CHECKFLAGSNEW(GALILEO, C5AB, C8)
    CHECKFLAGSNEW(GALILEO, L5AB, L8)
    CHECKFLAGSNEW(GALILEO, D5AB, D8)
    CHECKFLAGSNEW(GALILEO, S5AB, S8)

    if(modified)
    {
      if(hdata)
        hdata->data.named.typesofobsE = buffer;
      i = 1+snprintf(buffer, buffersize,
      "E  %3d%-52.52s  SYS / # / OBS TYPES",
      Parser->info[RTCM3_MSM_GALILEO].numtypes, Parser->fieldbufferGALILEO);
      if(Parser->info[RTCM3_MSM_GALILEO].numtypes>13)
      {
        i += snprintf(buffer+i-1, buffersize,
        "\n      %-52.52s  SYS / # / OBS TYPES", Parser->fieldbufferGALILEO+13*4);
      }
      buffer += i; buffersize -= i;
    }

    INITFLAGS(BDS)
    CHECKFLAGSNEW(BDS, CB1,  C2I)
    CHECKFLAGSNEW(BDS, LB1,  L2I)
    CHECKFLAGSNEW(BDS, DB1,  D2I)
    CHECKFLAGSNEW(BDS, SB1,  S2I)
    CHECKFLAGSNEW(BDS, CB2,  C7I)
    CHECKFLAGSNEW(BDS, LB2,  L7I)
    CHECKFLAGSNEW(BDS, DB2,  D7I)
    CHECKFLAGSNEW(BDS, SB2,  S7I)
    CHECKFLAGSNEW(BDS, CB3,  C6I)
    CHECKFLAGSNEW(BDS, LB3,  L6I)
    CHECKFLAGSNEW(BDS, DB3,  D6I)
    CHECKFLAGSNEW(BDS, SB3,  S6I)

    if(modified)
    {
      if(hdata)
        hdata->data.named.typesofobsC = buffer;
      i = 1+snprintf(buffer, buffersize,
      "C  %3d%-52.52s  SYS / # / OBS TYPES",
      Parser->info[RTCM3_MSM_BDS].numtypes, Parser->fieldbufferBDS);
      if(Parser->info[RTCM3_MSM_BDS].numtypes>13)
      {
        i += snprintf(buffer+i-1, buffersize,
        "\n      %-52.52s  SYS / # / OBS TYPES", Parser->fieldbufferBDS+13*4);
      }
      buffer += i; buffersize -= i;
    }

    INITFLAGS(QZSS)

    CHECKFLAGSNEW(QZSS, C1,  C1C)
    CHECKFLAGSNEW(QZSS, L1C, L1C)
    CHECKFLAGSNEW(QZSS, D1C, D1C)
    CHECKFLAGSNEW(QZSS, S1C, S1C)

    CHECKFLAGSNEW(QZSS, CSAIF, C1Z)
    CHECKFLAGSNEW(QZSS, LSAIF, L1Z)
    CHECKFLAGSNEW(QZSS, DSAIF, D1Z)
    CHECKFLAGSNEW(QZSS, SSAIF, S1Z)

    CHECKFLAGSNEW(QZSS, C1N, C1)
    CHECKFLAGSNEW(QZSS, L1N, L1)
    CHECKFLAGSNEW(QZSS, D1N, D1)
    CHECKFLAGSNEW(QZSS, S1N, S1)

    CHECKFLAGSNEW(QZSS, C6, C6)
    CHECKFLAGSNEW(QZSS, L6, L6)
    CHECKFLAGSNEW(QZSS, D6, D6)
    CHECKFLAGSNEW(QZSS, S6, S6)

    CHECKFLAGSNEW(QZSS, C2,  C2)
    CHECKFLAGSNEW(QZSS, L2C, L2)
    CHECKFLAGSNEW(QZSS, D2C, D2)
    CHECKFLAGSNEW(QZSS, S2C, S2)

    CHECKFLAGSNEW(QZSS, C5,  C5)
    CHECKFLAGSNEW(QZSS, L5,  L5)
    CHECKFLAGSNEW(QZSS, D5,  D5)
    CHECKFLAGSNEW(QZSS, S5,  S5)

    if(modified)
    {
      if(hdata)
        hdata->data.named.typesofobsJ = buffer;
      i = 1+snprintf(buffer, buffersize,
      "J  %3d%-52.52s  SYS / # / OBS TYPES",
      Parser->info[RTCM3_MSM_QZSS].numtypes, Parser->fieldbufferQZSS);
      if(Parser->info[RTCM3_MSM_QZSS].numtypes>13)
      {
        i += snprintf(buffer+i-1, buffersize,
        "\n      %-52.52s  SYS / # / OBS TYPES", Parser->fieldbufferQZSS+13*4);
      }
      buffer += i; buffersize -= i;
    }
  }
  else
  {
#define CHECKFLAGS(a, b) \
    if(flags & GNSSDF_##a##DATA) \
    { \
      if(Parser->datafields[RINEXENTRY_##b##DATA]) \
      { \
        Parser->info[RTCM3_MSM_GPS].flags[Parser->datafields[\
        RINEXENTRY_##b##DATA]-1] = GNSSDF_##a##DATA; \
        Parser->info[RTCM3_MSM_GPS].pos[Parser->datafields[\
        RINEXENTRY_##b##DATA]-1] = GNSSENTRY_##a##DATA; \
      } \
      else \
      { \
        Parser->flags[Parser->info[RTCM3_MSM_GPS].numtypes] = GNSSDF_##a##DATA; \
        Parser->pos[Parser->info[RTCM3_MSM_GPS].numtypes] = GNSSENTRY_##a##DATA; \
        Parser->datafields[RINEXENTRY_##b##DATA] = \
        ++Parser->info[RTCM3_MSM_GPS].numtypes; \
        snprintf(Parser->fieldbuffer+6*Parser->numdatafields, \
        sizeof(Parser->fieldbuffer)-6*Parser->numdatafields, "    "#b); \
        ++Parser->numdatafields; \
        ++modified; \
      } \
    }

    int flags = Parser->startflags;
    for(i = 0; i < Parser->Data.numsats; ++i)
      flags |= Parser->Data.dataflags[i];

    CHECKFLAGS(C1,C1)
    CHECKFLAGS(C2,C2)
    CHECKFLAGS(P1,P1)
    CHECKFLAGS(P2,P2)
    CHECKFLAGS(L1C,L1)
    CHECKFLAGS(L1P,L1)
    CHECKFLAGS(L2C,L2)
    CHECKFLAGS(L2P,L2)
    CHECKFLAGS(D1C,D1)
    CHECKFLAGS(D1P,D1)
    CHECKFLAGS(D2C,D2)
    CHECKFLAGS(D2P,D2)
    CHECKFLAGS(S1C,S1)
    CHECKFLAGS(S1P,S1)
    CHECKFLAGS(S2C,S2)
    CHECKFLAGS(S2P,S2)
    CHECKFLAGS(C5,C5)
    CHECKFLAGS(L5,L5)
    CHECKFLAGS(D5,D5)
    CHECKFLAGS(S5,S5)
    CHECKFLAGS(C5AB,C8)
    CHECKFLAGS(L5AB,L8)
    CHECKFLAGS(D5AB,D8)
    CHECKFLAGS(S5AB,S8)
    CHECKFLAGS(C5B,C7)
    CHECKFLAGS(L5B,L7)
    CHECKFLAGS(D5B,D7)
    CHECKFLAGS(S5B,S7)
    CHECKFLAGS(C6,C6)
    CHECKFLAGS(L6,L6)
    CHECKFLAGS(D6,D6)
    CHECKFLAGS(S6,S6)
    /* Skip C1N and SAIF for RINEX2! */

    if(hdata)
      hdata->data.named.typesofobs = buffer;
    if(modified)
    {
      i = 1+snprintf(buffer, buffersize,
      "%6d%-54.54s# / TYPES OF OBSERV", Parser->info[RTCM3_MSM_GPS].numtypes,
      Parser->fieldbuffer);
      if(Parser->info[RTCM3_MSM_GPS].numtypes>9)
      {
        i += snprintf(buffer+i-1, buffersize,
        "\n      %-54.54s# / TYPES OF OBSERV", Parser->fieldbuffer+9*6);
      }
      if(Parser->info[RTCM3_MSM_GPS].numtypes>18)
      {
        i += snprintf(buffer+i-1, buffersize,
        "\n      %-54.54s# / TYPES OF OBSERV", Parser->fieldbuffer+18*6);
      }
      buffer += i; buffersize -= i;
    }
  }
  return buffersizeold - buffersize;
}

void HandleHeader(struct RTCM3ParserData *Parser)
{
#ifdef NO_RTCM3_MAIN
  int flags, modified = 0;
  if(Parser->allflags == 0)
    Parser->allflags = ~0;
  flags = Parser->allflags;
  if(Parser->rinex3)
  {
    struct HeaderData *hdata = 0;
    CHECKFLAGSNEW(GPS, C1,  C1C)
    CHECKFLAGSNEW(GPS, L1C, L1C)
    CHECKFLAGSNEW(GPS, D1C, D1C)
    CHECKFLAGSNEW(GPS, S1C, S1C)
    CHECKFLAGSNEW(GPS, P1,  C1P)
    CHECKFLAGSNEW(GPS, L1P, L1P)
    CHECKFLAGSNEW(GPS, D1P, D1P)
    CHECKFLAGSNEW(GPS, S1P, S1P)
    CHECKFLAGSNEW(GPS, P2,  C2P)
    CHECKFLAGSNEW(GPS, L2P, L2P)
    CHECKFLAGSNEW(GPS, D2P, D2P)
    CHECKFLAGSNEW(GPS, S2P, S2P)
    CHECKFLAGSNEW(GPS, C2,  C2X)
    CHECKFLAGSNEW(GPS, L2C, L2X)
    CHECKFLAGSNEW(GPS, D2C, D2X)
    CHECKFLAGSNEW(GPS, S2C, S2X)
    CHECKFLAGSNEW(GLONASS, C1,  C1C)
    CHECKFLAGSNEW(GLONASS, L1C, L1C)
    CHECKFLAGSNEW(GLONASS, D1C, D1C)
    CHECKFLAGSNEW(GLONASS, S1C, S1C)
    CHECKFLAGSNEW(GLONASS, P1,  C1P)
    CHECKFLAGSNEW(GLONASS, L1P, L1P)
    CHECKFLAGSNEW(GLONASS, D1P, D1P)
    CHECKFLAGSNEW(GLONASS, S1P, S1P)
    CHECKFLAGSNEW(GLONASS, P2,  C2P)
    CHECKFLAGSNEW(GLONASS, L2P, L2P)
    CHECKFLAGSNEW(GLONASS, D2P, D2P)
    CHECKFLAGSNEW(GLONASS, S2P, S2P)
    CHECKFLAGSNEW(GLONASS, C2,  C2C)
    CHECKFLAGSNEW(GLONASS, L2C, L2C)
    CHECKFLAGSNEW(GLONASS, D2C, D2C)
    CHECKFLAGSNEW(GLONASS, S2C, S2C)
  }
  else
  {
    CHECKFLAGS(C1,C1)
    CHECKFLAGS(C2,C2)
    CHECKFLAGS(P1,P1)
    CHECKFLAGS(P2,P2)
    CHECKFLAGS(L1C,L1)
    CHECKFLAGS(L1P,L1)
    CHECKFLAGS(L2C,L2)
    CHECKFLAGS(L2P,L2)
    CHECKFLAGS(D1C,D1)
    CHECKFLAGS(D1P,D1)
    CHECKFLAGS(D2C,D2)
    CHECKFLAGS(D2P,D2)
    CHECKFLAGS(S1C,S1)
    CHECKFLAGS(S1P,S1)
    CHECKFLAGS(S2C,S2)
    CHECKFLAGS(S2P,S2)
    CHECKFLAGS(C5,C5)
    CHECKFLAGS(L5,L5)
    CHECKFLAGS(D5,D5)
    CHECKFLAGS(S5,S5)
    CHECKFLAGS(C5AB,C8)
    CHECKFLAGS(L5AB,L8)
    CHECKFLAGS(D5AB,D8)
    CHECKFLAGS(S5AB,S8)
    CHECKFLAGS(C5B,C7)
    CHECKFLAGS(L5B,L7)
    CHECKFLAGS(D5B,D7)
    CHECKFLAGS(S5B,S7)
    CHECKFLAGS(C6,C6)
    CHECKFLAGS(L6,L6)
    CHECKFLAGS(D6,D6)
    CHECKFLAGS(S6,S6)
  }
#else /* NO_RTCM3_MAIN */
  struct HeaderData hdata;
  char thebuffer[MAXHEADERBUFFERSIZE];
  char *buffer = thebuffer;
  size_t buffersize = sizeof(thebuffer);
  int i;

  memset(&hdata, 0, sizeof(hdata));

  hdata.data.named.version = buffer;
  i = 1+snprintf(buffer, buffersize,
  "%9.2f           OBSERVATION DATA    M (Mixed)"
  "           RINEX VERSION / TYPE", Parser->rinex3 ? 3.0 : 2.11);
  buffer += i; buffersize -= i;

  {
    const char *str;
    hdata.data.named.pgm = buffer;
    i = HandleRunBy(buffer, buffersize, &str, Parser->rinex3);
    buffer += i; buffersize -= i;
    hdata.data.named.observer = buffer;
    i = 1+snprintf(buffer, buffersize,
    "%-20.20s                                        "
    "OBSERVER / AGENCY", str);
    buffer += i; buffersize -= i;
  }

  hdata.data.named.marker =
  "RTCM3TORINEX                                                "
  "MARKER NAME";

  hdata.data.named.markertype =  !Parser->rinex3 ? 0 :
  "GEODETIC                                                    "
  "MARKER TYPE";

  hdata.data.named.receiver =
  "                                                            "
  "REC # / TYPE / VERS";

  hdata.data.named.antenna =
  "                                                            "
  "ANT # / TYPE";

  hdata.data.named.position =
  "         .0000         .0000         .0000                  "
  "APPROX POSITION XYZ";

  hdata.data.named.antennaposition =
  "         .0000         .0000         .0000                  "
  "ANTENNA: DELTA H/E/N";

  hdata.data.named.wavelength = Parser->rinex3 ? 0 :
  "     1     1                                                "
  "WAVELENGTH FACT L1/2";

  hdata.numheaders = 18;

  i = HandleObsHeader(Parser, buffer, buffersize, &hdata);
  buffer += i; buffersize -= i;

  {
    struct converttimeinfo cti;
    converttime(&cti, Parser->Data.week,
    (int)floor(Parser->Data.timeofweek/1000.0));
    hdata.data.named.timeoffirstobs = buffer;
    i = 1+snprintf(buffer, buffersize,
    "  %4d    %2d    %2d    %2d    %2d   %10.7f     GPS         "
    "TIME OF FIRST OBS", cti.year, cti.month, cti.day, cti.hour,
    cti.minute, cti.second + fmod(Parser->Data.timeofweek/1000.0,1.0));

    buffer += i; buffersize -= i;
  }

  if(Parser->headerfile)
  {
    FILE *fh;
    if((fh = fopen(Parser->headerfile, "r")))
    {
      size_t siz;
      char *lastblockstart;
      if((siz = fread(buffer, 1, buffersize-1, fh)) > 0)
      {
        buffer[siz] = '\n';
        if(siz == buffersize)
        {
          RTCM3Error("Header file is too large. Only %d bytes read.",
          (int)siz);
        }
        /* scan the file line by line and enter the entries in the list */
        /* warn for "# / TYPES OF OBSERV" and "TIME OF FIRST OBS" */
        /* overwrites entries, except for comments */
        lastblockstart = buffer;
        for(i = 0; i < (int)siz; ++i)
        {
          if(buffer[i] == '\n')
          { /* we found a line */
            char *end;
            while(buffer[i+1] == '\r')
              ++i; /* skip \r in case there are any */
            end = buffer+i;
            while(*end == '\t' || *end == ' ' || *end == '\r' || *end == '\n')
              *(end--) = 0;
            if(end-lastblockstart < 60+5) /* short line */
              RTCM3Error("Short Header line '%s' ignored.\n", lastblockstart);
            else
            {
              int pos;
              if(!strcmp("COMMENT", lastblockstart+60))
                pos = hdata.numheaders;
              else
              {
                for(pos = 0; pos < hdata.numheaders; ++pos)
                {
                  if(hdata.data.unnamed[pos] &&
                  !strcmp(hdata.data.unnamed[pos]+60, lastblockstart+60))
                    break;
                }
                if(!strcmp("# / TYPES OF OBSERV", lastblockstart+60)
                || !strcmp("SYS / # / OBS TYPES", lastblockstart+60)
                || !strcmp("TIME OF FIRST OBS", lastblockstart+60))
                {
                  RTCM3Error("Overwriting header '%s' is dangerous.\n",
                  lastblockstart+60);
                }
              }
              if(pos >= MAXHEADERLINES)
              {
                RTCM3Error("Maximum number of header lines of %d reached.\n",
                MAXHEADERLINES);
              }
              else if(!strcmp("END OF HEADER", lastblockstart+60))
              {
                RTCM3Error("End of header ignored.\n");
              }
              else
              {
                hdata.data.unnamed[pos] = lastblockstart;
                if(pos == hdata.numheaders)
                  ++hdata.numheaders;
              }
            }
            lastblockstart = buffer+i+1;
          }
        }
      }
      else
      {
        RTCM3Error("Could not read data from headerfile '%s'.\n",
        Parser->headerfile);
      }
      fclose(fh);
    }
    else
    {
      RTCM3Error("Could not open header datafile '%s'.\n",
      Parser->headerfile);
    }
  }

  for(i = 0; i < hdata.numheaders; ++i)
  {
    if(hdata.data.unnamed[i] && hdata.data.unnamed[i][0])
      RTCM3Text("%s\n", hdata.data.unnamed[i]);
  }
  RTCM3Text("                                                            "
  "END OF HEADER\n");
#endif
}

static void ConvLine(FILE *file, const char *fmt, ...)
{
  char buffer[100], *b;
  va_list v;
  va_start(v, fmt);
  vsnprintf(buffer, sizeof(buffer), fmt, v);
  for(b = buffer; *b; ++b)
  {
    if(*b == 'e') *b = 'D';
  }
  fprintf(file, "%s", buffer);
  va_end(v);
}

void HandleByte(struct RTCM3ParserData *Parser, unsigned int byte)
{
  Parser->Message[Parser->MessageSize++] = byte;
  if(Parser->MessageSize >= Parser->NeedBytes)
  {
    int r;
    while((r = RTCM3Parser(Parser)))
    {
      double ver = Parser->rinex3 ? 3.02 : 2.11;
      if(r == 1020 || r == RTCM3ID_BDS || r == 1019 || r == 1044 || r == 1043)
      {
        FILE *file = 0;

        if(Parser->mixedephemeris)
        {
          if(Parser->mixedephemeris != (const char *)1)
          {
            if(!(Parser->mixedfile = fopen(Parser->mixedephemeris, "w")))
            {
              RTCM3Error("Could not open ephemeris output file.\n");
            }
            else
            {
              char buffer[100];
              fprintf(Parser->mixedfile,
              "%9.2f%11sN: GNSS NAV DATA    M: Mixed%12sRINEX VERSION / TYPE\n", ver, "", "");
              HandleRunBy(buffer, sizeof(buffer), 0, Parser->rinex3);
              fprintf(Parser->mixedfile, "%s\n%60sEND OF HEADER\n", buffer, "");
            }
            Parser->mixedephemeris = (const char *)1;
          }
          file = Parser->mixedfile;
        }
        else
        {
          if(r == 1020)
          {
            if(Parser->glonassephemeris)
            {
              if(!(Parser->glonassfile = fopen(Parser->glonassephemeris, "w")))
              {
                RTCM3Error("Could not open GLONASS ephemeris output file.\n");
              }
              else
              {
                char buffer[100];
                fprintf(Parser->glonassfile,
                "%9.2f%11sG: GLONASS NAV DATA%21sRINEX VERSION / TYPE\n", ver, "", "");
                HandleRunBy(buffer, sizeof(buffer), 0, Parser->rinex3);
                fprintf(Parser->glonassfile, "%s\n%60sEND OF HEADER\n", buffer, "");
              }
              Parser->glonassephemeris = 0;
            }
            file = Parser->glonassfile;
          }
          else if(r == 1019)
          {
            if(Parser->gpsephemeris)
            {
              if(!(Parser->gpsfile = fopen(Parser->gpsephemeris, "w")))
              {
                RTCM3Error("Could not open GPS ephemeris output file.\n");
              }
              else
              {
                char buffer[100];
                fprintf(Parser->gpsfile,
                "%9.2f%11sN: GPS NAV DATA%25sRINEX VERSION / TYPE\n", ver, "", "");
                HandleRunBy(buffer, sizeof(buffer), 0, Parser->rinex3);
                fprintf(Parser->gpsfile, "%s\n%60sEND OF HEADER\n", buffer, "");
              }
              Parser->gpsephemeris = 0;
            }
            file = Parser->gpsfile;
          }
          else if(r == 1043)
          {
            if(Parser->sbasephemeris)
            {
              if(!(Parser->sbasfile = fopen(Parser->sbasephemeris, "w")))
              {
                RTCM3Error("Could not open SBAS ephemeris output file.\n");
              }
              else
              {
                char buffer[100];
                fprintf(Parser->sbasfile,
                "%9.2f%11sN: SBAS NAV DATA%24sRINEX VERSION / TYPE\n", ver, "", "");
                HandleRunBy(buffer, sizeof(buffer), 0, Parser->rinex3);
                fprintf(Parser->sbasfile, "%s\n%60sEND OF HEADER\n", buffer, "");
              }
              Parser->sbasephemeris = 0;
            }
            file = Parser->sbasfile;
          }
          else if(r == 1044)
          {
            if(Parser->qzssephemeris)
            {
              if(!(Parser->qzssfile = fopen(Parser->qzssephemeris, "w")))
              {
                RTCM3Error("Could not open QZSS ephemeris output file.\n");
              }
              else
              {
                char buffer[100];
                fprintf(Parser->qzssfile,
                "%9.2f%11sN: QZSS NAV DATA%24sRINEX VERSION / TYPE\n", ver, "", "");
                HandleRunBy(buffer, sizeof(buffer), 0, Parser->rinex3);
                fprintf(Parser->qzssfile, "%s\n%60sEND OF HEADER\n", buffer, "");
              }
              Parser->qzssephemeris = 0;
            }
            file = Parser->qzssfile;
          }
          else if(r == RTCM3ID_BDS)
          {
            if(Parser->bdsephemeris)
            {
              if(!(Parser->bdsfile = fopen(Parser->bdsephemeris, "w")))
              {
                RTCM3Error("Could not open BDS ephemeris output file.\n");
              }
              else
              {
                char buffer[100];
                fprintf(Parser->bdsfile,
                "%9.2f%11sN: BDS NAV DATA%25sRINEX VERSION / TYPE\n", ver, "", "");
                HandleRunBy(buffer, sizeof(buffer), 0, Parser->rinex3);
                fprintf(Parser->bdsfile, "%s\n%60sEND OF HEADER\n", buffer, "");
              }
              Parser->bdsephemeris = 0;
            }
            file = Parser->bdsfile;
          }
        }
        if(file)
        {
          const char *sep = "   ";
          if(r == 1020)
          {
            struct glonassephemeris *e = &Parser->ephemerisGLONASS;
            int w = e->GPSWeek, tow = e->GPSTOW, i;
            struct converttimeinfo cti;

            updatetime(&w, &tow, e->tb*1000, 1);  /* Moscow - > UTC */
            converttime(&cti, w, tow);

            i = e->tk-3*60*60; if(i < 0) i += 86400;

            if(Parser->rinex3)
            {
              ConvLine(file, "R%02d %04d %02d %02d %02d %02d %02d%19.12e%19.12e%19.12e\n",
              e->almanac_number, cti.year, cti.month, cti.day, cti.hour, cti.minute,
              cti.second, -e->tau, e->gamma, (double) i);
              sep = "    ";
            }
            else
            {
              ConvLine(file, "%02d %02d %02d %02d %02d %02d%5.1f%19.12e%19.12e%19.12e\n",
              e->almanac_number, cti.year%100, cti.month, cti.day, cti.hour, cti.minute,
              (double) cti.second, -e->tau, e->gamma, (double) i);
            }
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep, e->x_pos,
            e->x_velocity, e->x_acceleration, (e->flags & GLOEPHF_UNHEALTHY) ? 1.0 : 0.0);
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep, e->y_pos,
            e->y_velocity, e->y_acceleration, (double) e->frequency_number);
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep, e->z_pos,
            e->z_velocity, e->z_acceleration, (double) e->E);
          }
          else if(r == 1043)
          {
            struct sbasephemeris *e = &Parser->ephemerisSBAS;
            struct converttimeinfo cti;
            converttime(&cti, e->GPSweek_TOE, e->TOE);
            if(Parser->rinex3)
            {
              ConvLine(file, "S%02d %04d %2d %2d %2d %2d %2d%19.12e%19.12e%19.12e\n",
              e->satellite-100, cti.year, cti.month, cti.day, cti.hour, cti.minute,
              cti.second, e->agf0, e->agf1, (double)e->TOW);
              sep = "    ";
            }
            else
            {
              ConvLine(file, "%02d %02d %02d %02d %02d %02d%5.1f%19.12e%19.12e%19.12e\n",
              e->satellite-100, cti.year%100, cti.month, cti.day, cti.hour, cti.minute,
              (double)cti.second, e->agf0, e->agf1, (double)e->TOW);
            }
            /* X, health */
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep, e->x_pos,
            e->x_velocity, e->x_acceleration, e->URA == 15 ? 1.0 : 0.0);
            /* Y, accuracy */
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep, e->y_pos,
            e->y_velocity, e->y_acceleration, (double)e->URA);
            /* Z */
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep, e->z_pos,
            e->z_velocity, e->z_acceleration, (double)e->IODN);
          }
          else if(r == RTCM3ID_BDS)
          {
            struct bdsephemeris *e = &Parser->ephemerisBDS;
            double d;                 /* temporary variable */
            struct converttimeinfo cti;
            converttimebds(&cti, e->BDSweek, e->TOC);
            int num = e->satellite-PRN_BDS_START+1;

            if(Parser->rinex3)
            {
              ConvLine(file,
              "C%02d %04d %02d %02d %02d %02d %02d%19.12e%19.12e%19.12e\n",
              num, cti.year, cti.month, cti.day, cti.hour,
              cti.minute, cti.second, e->clock_bias, e->clock_drift,
              e->clock_driftrate);
              sep = "    ";
            }
            else /* actually this is never used, as BDS is undefined for 2.x */
            {
              ConvLine(file,
              "%02d %02d %02d %02d %02d %02d%05.1f%19.12e%19.12e%19.12e\n",
              num, cti.year%100, cti.month, cti.day, cti.hour,
              cti.minute, (double) cti.second, e->clock_bias, e->clock_drift,
              e->clock_driftrate);
            }
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep,
            (double)e->AODE, e->Crs, e->Delta_n, e->M0);
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep, e->Cuc,
            e->e, e->Cus, e->sqrt_A);
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep,
            (double) e->TOE, e->Cic, e->OMEGA0, e->Cis);
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep, e->i0,
            e->Crc, e->omega, e->OMEGADOT);
            ConvLine(file, "%s%19.12e                   %19.12e\n", sep, e->IDOT,
            (double) e->BDSweek);
            if(e->URAI <= 6) /* URA index */
              d = ceil(10.0*pow(2.0, 1.0+((double)e->URAI)/2.0))/10.0;
            else
              d = ceil(10.0*pow(2.0, ((double)e->URAI)/2.0))/10.0;
            /* 15 indicates not to use satellite. We can't handle this special
               case, so we create a high "non"-accuracy value. */
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep, d,
            ((double) (e->flags & BDSEPHF_SATH1)), e->TGD_B1_B3,
            e->TGD_B2_B3);

            ConvLine(file, "%s%19.12e%19.12e\n", sep, ((double)e->TOW),
            (double) e->AODC);
            /* TOW, AODC */
          }
          else /* if(r == 1019 || r == 1044) */
          {
            struct gpsephemeris *e = &Parser->ephemerisGPS;
            double d;                 /* temporary variable */
            unsigned long int i;       /* temporary variable */
            struct converttimeinfo cti;
            converttime(&cti, e->GPSweek, e->TOC);
            int qzss = 0;
            int num = e->satellite;

            if(num >= PRN_QZSS_START)
            {
              qzss = 1;
              num -= PRN_QZSS_START-1;
            }
            if(Parser->rinex3)
            {
              ConvLine(file,
              "%s%02d %04d %02d %02d %02d %02d %02d%19.12e%19.12e%19.12e\n",
              qzss ? "J" : "G", num, cti.year, cti.month, cti.day, cti.hour,
              cti.minute, cti.second, e->clock_bias, e->clock_drift,
              e->clock_driftrate);
              sep = "    ";
            }
            else
            {
              ConvLine(file,
              "%02d %02d %02d %02d %02d %02d%05.1f%19.12e%19.12e%19.12e\n",
              num, cti.year%100, cti.month, cti.day, cti.hour,
              cti.minute, (double) cti.second, e->clock_bias, e->clock_drift,
              e->clock_driftrate);
            }
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep,
            (double)e->IODE, e->Crs, e->Delta_n, e->M0);
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep, e->Cuc,
            e->e, e->Cus, e->sqrt_A);
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep,
            (double) e->TOE, e->Cic, e->OMEGA0, e->Cis);
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep, e->i0,
            e->Crc, e->omega, e->OMEGADOT);
            d = 0;
            i = e->flags;
            if(i & GPSEPHF_L2CACODE)
              d += 2.0;
            if(i & GPSEPHF_L2PCODE)
              d += 1.0;
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep, e->IDOT, d,
            (double) e->GPSweek, i & GPSEPHF_L2PCODEDATA ? 1.0 : 0.0);
            if(e->URAindex <= 6) /* URA index */
              d = ceil(10.0*pow(2.0, 1.0+((double)e->URAindex)/2.0))/10.0;
            else
              d = ceil(10.0*pow(2.0, ((double)e->URAindex)/2.0))/10.0;
            /* 15 indicates not to use satellite. We can't handle this special
               case, so we create a high "non"-accuracy value. */
            ConvLine(file, "%s%19.12e%19.12e%19.12e%19.12e\n", sep, d,
            ((double) e->SVhealth), e->TGD, ((double) e->IODC));

            ConvLine(file, "%s%19.12e%19.12e\n", sep, ((double)e->TOW),
            (i & GPSEPHF_6HOURSFIT) ? (Parser->rinex3 ? 1 : qzss ? 4.0 : 6.0)
            : (Parser->rinex3 ? 0 : qzss ? 2.0 : 4.0));
            /* TOW,Fit */
          }
        }
      }
      else if (r == 1 || r == 2)
      {
        int i, j, o, nh=0, hl=2;
        char newheader[512];
        struct converttimeinfo cti;

        /* skip first epochs to detect correct data types */
        if(Parser->init < (Parser->changeobs ? 1 : NUMSTARTSKIP))
        {
          ++Parser->init;

          if(Parser->init == (Parser->changeobs ? 1 : NUMSTARTSKIP))
            HandleHeader(Parser);
          else
          {
            for(i = 0; i < Parser->Data.numsats; ++i)
              Parser->startflags |= Parser->Data.dataflags[i];
            continue;
          }
        }
        if(r == 2 && !Parser->validwarning)
        {
          RTCM3Text("No valid RINEX! All values are modulo 299792.458!"
          "           COMMENT\n");
          Parser->validwarning = 1;
        }

        converttime(&cti, Parser->Data.week,
        (int)floor(Parser->Data.timeofweek/1000.0));
        newheader[0] = 0;
        if(Parser->changeobs)
        {
          nh = HandleObsHeader(Parser, newheader, sizeof(newheader), 0);
          for(i = 0; i < nh; ++i)
          {
            if(newheader[i] == '\n')
              ++hl;
          }
        }
        if(Parser->rinex3)
        {
          if(nh)
          {
            RTCM3Text("> %04d %02d %02d %02d %02d%11.7f  4%3d\n",
            cti.year, cti.month, cti.day, cti.hour, cti.minute, cti.second
            + fmod(Parser->Data.timeofweek/1000.0,1.0), hl);
            RTCM3Text("%s\n                             "
            "                               END OF HEADER\n", newheader);
          }
          RTCM3Text("> %04d %02d %02d %02d %02d%11.7f  %d%3d\n",
          cti.year, cti.month, cti.day, cti.hour, cti.minute, cti.second
          + fmod(Parser->Data.timeofweek/1000.0,1.0), 0,
          Parser->Data.numsats);
          for(i = 0; i < Parser->Data.numsats; ++i)
          {
            int sys[RTCM3_MSM_NUMSYS] = {0,0,0,0,0,0};
            if(Parser->Data.satellites[i] <= PRN_GPS_END)
            {
              RTCM3Text("G%02d", Parser->Data.satellites[i]);
              sys[RTCM3_MSM_GPS] = 1;
            }
            else if(Parser->Data.satellites[i] >= PRN_GLONASS_START
            && Parser->Data.satellites[i] <= PRN_GLONASS_END)
            {
              RTCM3Text("R%02d", Parser->Data.satellites[i] - (PRN_GLONASS_START-1));
              sys[RTCM3_MSM_GLONASS] = 1;
            }
            else if(Parser->Data.satellites[i] >= PRN_GALILEO_START
            && Parser->Data.satellites[i] <= PRN_GALILEO_END)
            {
              RTCM3Text("E%02d", Parser->Data.satellites[i] - (PRN_GALILEO_START-1));
              sys[RTCM3_MSM_GALILEO] = 1;
            }
            else if(Parser->Data.satellites[i] >= PRN_GIOVE_START
            && Parser->Data.satellites[i] <= PRN_GIOVE_END)
            {
              RTCM3Text("E%02d", Parser->Data.satellites[i] - (PRN_GIOVE_START-PRN_GIOVE_OFFSET));
              sys[RTCM3_MSM_GALILEO] = 1;
            }
            else if(Parser->Data.satellites[i] >= PRN_QZSS_START
            && Parser->Data.satellites[i] <= PRN_QZSS_END)
            {
              RTCM3Text("J%02d", Parser->Data.satellites[i] - (PRN_QZSS_START-1));
              sys[RTCM3_MSM_QZSS] = 1;
            }
            else if(Parser->Data.satellites[i] >= PRN_BDS_START
            && Parser->Data.satellites[i] <= PRN_BDS_END)
            {
              RTCM3Text("C%02d", Parser->Data.satellites[i] - (PRN_BDS_START-1));
              sys[RTCM3_MSM_BDS] = 1;
            }
            else if(Parser->Data.satellites[i] >= PRN_SBAS_START
            && Parser->Data.satellites[i] <= PRN_SBAS_END)
            {
              RTCM3Text("S%02d", Parser->Data.satellites[i] - PRN_SBAS_START+20);
              sys[RTCM3_MSM_SBAS] = 1;
            }
            else
            {
              RTCM3Text("%3d", Parser->Data.satellites[i]);
            }

            if(sys[RTCM3_MSM_GLONASS])
            {
              for(j = 0; j < Parser->info[RTCM3_MSM_GLONASS].numtypes; ++j)
              {
                long long df = Parser->info[RTCM3_MSM_GLONASS].flags[j];
                int pos = Parser->info[RTCM3_MSM_GLONASS].pos[j];
                if((Parser->Data.dataflags[i] & df)
                && !isnan(Parser->Data.measdata[i][pos])
                && !isinf(Parser->Data.measdata[i][pos])
                && (Parser->Data.codetype[i][pos]
                  && Parser->info[RTCM3_MSM_GLONASS].type[pos]
                  && Parser->info[RTCM3_MSM_GLONASS].type[pos]
                  == Parser->Data.codetype[i][pos][1]))
                {
                  char lli = ' ';
                  char snr = ' ';
                  if(df & (GNSSDF_L1CDATA|GNSSDF_L1PDATA))
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSL1)
                      lli = '1';
                    snr = '0'+Parser->Data.snrL1[i];
                  }
                  if(df & (GNSSDF_L2CDATA|GNSSDF_L2PDATA))
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSL2)
                      lli = '1';
                    snr = '0'+Parser->Data.snrL2[i];
                  }
                  RTCM3Text("%14.3f%c%c",
                  Parser->Data.measdata[i][pos],lli,snr);
                }
                else
                { /* no or illegal data */
                  RTCM3Text("                ");
                }
              }
            }
            else if(sys[RTCM3_MSM_GALILEO])
            {
              for(j = 0; j < Parser->info[RTCM3_MSM_GALILEO].numtypes; ++j)
              {
                long long df = Parser->info[RTCM3_MSM_GALILEO].flags[j];
                int pos = Parser->info[RTCM3_MSM_GALILEO].pos[j];
                if((Parser->Data.dataflags[i] & df)
                && !isnan(Parser->Data.measdata[i][pos])
                && !isinf(Parser->Data.measdata[i][pos])
                && (Parser->Data.codetype[i][pos]
                  && Parser->info[RTCM3_MSM_GALILEO].type[pos]
                  && Parser->info[RTCM3_MSM_GALILEO].type[pos]
                  == Parser->Data.codetype[i][pos][1]))
                {
                  char lli = ' ';
                  char snr = ' ';
                  if(df & (GNSSDF_L1CDATA|GNSSDF_L1PDATA))
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSL1)
                      lli = '1';
                    snr = '0'+Parser->Data.snrL1[i];
                  }
                  if(df & GNSSDF_L6DATA)
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSE6)
                      lli = '1';
                    snr = ' ';
                  }
                  if(df & GNSSDF_L5DATA)
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSL5)
                      lli = '1';
                    snr = ' ';
                  }
                  if(df & GNSSDF_L5BDATA)
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSE5B)
                      lli = '1';
                    snr = ' ';
                  }
                  if(df & GNSSDF_L5ABDATA)
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSE5AB)
                      lli = '1';
                    snr = ' ';
                  }
                  RTCM3Text("%14.3f%c%c",
                  Parser->Data.measdata[i][pos],lli,snr);
                }
                else
                { /* no or illegal data */
                  RTCM3Text("                ");
                }
              }
            }
            else if(sys[RTCM3_MSM_BDS])
            {
              for(j = 0; j < Parser->info[RTCM3_MSM_BDS].numtypes; ++j)
              {
                long long df = Parser->info[RTCM3_MSM_BDS].flags[j];
                int pos = Parser->info[RTCM3_MSM_BDS].pos[j];
                if((Parser->Data.dataflags[i] & df)
                && !isnan(Parser->Data.measdata[i][pos])
                && !isinf(Parser->Data.measdata[i][pos])
                && (Parser->Data.codetype[i][pos]
                  && Parser->info[RTCM3_MSM_BDS].type[pos]
                  && Parser->info[RTCM3_MSM_BDS].type[pos]
                  == Parser->Data.codetype[i][pos][1]))
                {
                  char lli = ' ';
                  char snr = ' ';
                  if(df & GNSSDF_LB1DATA)
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSB1)
                      lli = '1';
                  }
                  if(df & GNSSDF_LB2DATA)
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSB2)
                      lli = '1';
                  }
                  if(df & GNSSDF_LB3DATA)
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSB3)
                      lli = '1';
                  }
                  RTCM3Text("%14.3f%c%c",
                  Parser->Data.measdata[i][pos],lli,snr);
                }
                else
                { /* no or illegal data */
                  RTCM3Text("                ");
                }
              }
            }
            else if(sys[RTCM3_MSM_QZSS])
            {
              for(j = 0; j < Parser->info[RTCM3_MSM_QZSS].numtypes; ++j)
              {
                long long df = Parser->info[RTCM3_MSM_QZSS].flags[j];
                int pos = Parser->info[RTCM3_MSM_QZSS].pos[j];
                if((Parser->Data.dataflags[i] & df)
                && !isnan(Parser->Data.measdata[i][pos])
                && !isinf(Parser->Data.measdata[i][pos])
                && (Parser->Data.codetype[i][pos]
                  && Parser->info[RTCM3_MSM_QZSS].type[pos]
                  && Parser->info[RTCM3_MSM_QZSS].type[pos]
                  == Parser->Data.codetype[i][pos][1]))
                {
                  char lli = ' ';
                  char snr = ' ';
                  if(df & GNSSDF_L1CDATA)
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSL1)
                      lli = '1';
                    snr = '0'+Parser->Data.snrL1[i];
                  }
                  if(df & (GNSSDF_L2CDATA|GNSSDF_L2PDATA))
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSL2)
                      lli = '1';
                    snr = '0'+Parser->Data.snrL2[i];
                  }
                  if(df & GNSSDF_L5DATA)
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSL5)
                      lli = '1';
                    snr = ' ';
                  }
                  RTCM3Text("%14.3f%c%c",
                  Parser->Data.measdata[i][pos],lli,snr);
                }
                else
                { /* no or illegal data */
                  RTCM3Text("                ");
                }
              }
            }
            else if(sys[RTCM3_MSM_SBAS])
            {
              for(j = 0; j < Parser->info[RTCM3_MSM_SBAS].numtypes; ++j)
              {
                long long df = Parser->info[RTCM3_MSM_SBAS].flags[j];
                int pos = Parser->info[RTCM3_MSM_SBAS].pos[j];
                if((Parser->Data.dataflags[i] & df)
                && !isnan(Parser->Data.measdata[i][pos])
                && !isinf(Parser->Data.measdata[i][pos])
                && (Parser->Data.codetype[i][pos]
                  && Parser->info[RTCM3_MSM_SBAS].type[pos]
                  && Parser->info[RTCM3_MSM_SBAS].type[pos]
                  == Parser->Data.codetype[i][pos][1]))
                {
                  char lli = ' ';
                  char snr = ' ';
                  if(df & (GNSSDF_L1CDATA|GNSSDF_L1PDATA))
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSL1)
                      lli = '1';
                    snr = '0'+Parser->Data.snrL1[i];
                  }
                  if(df & GNSSDF_L5DATA)
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSL5)
                      lli = '1';
                    snr = ' ';
                  }
                  RTCM3Text("%14.3f%c%c",
                  Parser->Data.measdata[i][pos],lli,snr);
                }
                else
                { /* no or illegal data */
                  RTCM3Text("                ");
                }
              }
            }
            else
            {
              for(j = 0; j < Parser->info[RTCM3_MSM_GPS].numtypes; ++j)
              {
                long long df = Parser->info[RTCM3_MSM_GPS].flags[j];
                int pos = Parser->info[RTCM3_MSM_GPS].pos[j];
                if((Parser->Data.dataflags[i] & df)
                && !isnan(Parser->Data.measdata[i][pos])
                && !isinf(Parser->Data.measdata[i][pos])
                && (Parser->Data.codetype[i][pos]
                  && Parser->info[RTCM3_MSM_GPS].type[pos]
                  && Parser->info[RTCM3_MSM_GPS].type[pos]
                  == Parser->Data.codetype[i][pos][1]))
                {
                  char lli = ' ';
                  char snr = ' ';
                  if(df & (GNSSDF_L1CDATA|GNSSDF_L1PDATA))
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSL1)
                      lli = '1';
                    snr = '0'+Parser->Data.snrL1[i];
                  }
                  if(df & (GNSSDF_L2CDATA|GNSSDF_L2PDATA))
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSL2)
                      lli = '1';
                    snr = '0'+Parser->Data.snrL2[i];
                  }
                  if(df & GNSSDF_L5DATA)
                  {
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSL5)
                      lli = '1';
                    snr = ' ';
                  }
                  RTCM3Text("%14.3f%c%c",
                  Parser->Data.measdata[i][pos],lli,snr);
                }
                else
                { /* no or illegal data */
                  RTCM3Text("                ");
                }
              }
            }
            RTCM3Text("\n");
          }
        }
        else
        {
          RTCM3Text(" %02d %2d %2d %2d %2d %10.7f  %d%3d",
          cti.year%100, cti.month, cti.day, cti.hour, cti.minute, cti.second
          + fmod(Parser->Data.timeofweek/1000.0,1.0),  nh ? 4 : 0,
          Parser->Data.numsats);
          for(i = 0; i < 12 && i < Parser->Data.numsats; ++i)
          {
            if(Parser->Data.satellites[i] <= PRN_GPS_END)
              RTCM3Text("G%02d", Parser->Data.satellites[i]);
            else if(Parser->Data.satellites[i] >= PRN_GLONASS_START
            && Parser->Data.satellites[i] <= PRN_GLONASS_END)
              RTCM3Text("R%02d", Parser->Data.satellites[i]
              - (PRN_GLONASS_START-1));
            else if(Parser->Data.satellites[i] >= PRN_SBAS_START
            && Parser->Data.satellites[i] <= PRN_SBAS_END)
              RTCM3Text("S%02d", Parser->Data.satellites[i]
              - PRN_SBAS_START+20);
            else if(Parser->Data.satellites[i] >= PRN_GALILEO_START
            && Parser->Data.satellites[i] <= PRN_GALILEO_END)
              RTCM3Text("E%02d", Parser->Data.satellites[i]
              - (PRN_GALILEO_START-1));
            else if(Parser->Data.satellites[i] >= PRN_GIOVE_START
            && Parser->Data.satellites[i] <= PRN_GIOVE_END)
              RTCM3Text("E%02d", Parser->Data.satellites[i]
              - (PRN_GIOVE_START-PRN_GIOVE_OFFSET));
            else if(Parser->Data.satellites[i] >= PRN_QZSS_START
            && Parser->Data.satellites[i] <= PRN_QZSS_END)
              RTCM3Text("J%02d", Parser->Data.satellites[i]
              - (PRN_QZSS_START-1));
            else if(Parser->Data.satellites[i] >= PRN_BDS_START
            && Parser->Data.satellites[i] <= PRN_BDS_END)
              RTCM3Text("C%02d", Parser->Data.satellites[i]
              - (PRN_BDS_START-1));
            else
              RTCM3Text("%3d", Parser->Data.satellites[i]);
          }
          RTCM3Text("\n");
          o = 12;
          j = Parser->Data.numsats - 12;
          while(j > 0)
          {
            RTCM3Text("                                ");
            for(i = o; i < o+12 && i < Parser->Data.numsats; ++i)
            {
              if(Parser->Data.satellites[i] <= PRN_GPS_END)
                RTCM3Text("G%02d", Parser->Data.satellites[i]);
              else if(Parser->Data.satellites[i] >= PRN_GLONASS_START
              && Parser->Data.satellites[i] <= PRN_GLONASS_END)
                RTCM3Text("R%02d", Parser->Data.satellites[i]
                - (PRN_GLONASS_START-1));
              else if(Parser->Data.satellites[i] >= PRN_SBAS_START
              && Parser->Data.satellites[i] <= PRN_SBAS_END)
                RTCM3Text("S%02d", Parser->Data.satellites[i]
                - PRN_SBAS_START+20);
              else if(Parser->Data.satellites[i] >= PRN_GALILEO_START
              && Parser->Data.satellites[i] <= PRN_GALILEO_END)
                RTCM3Text("E%02d", Parser->Data.satellites[i]
                - (PRN_GALILEO_START-1));
              else if(Parser->Data.satellites[i] >= PRN_GIOVE_START
              && Parser->Data.satellites[i] <= PRN_GIOVE_END)
                RTCM3Text("E%02d", Parser->Data.satellites[i]
                - (PRN_GIOVE_START-PRN_GIOVE_OFFSET));
              else if(Parser->Data.satellites[i] >= PRN_QZSS_START
              && Parser->Data.satellites[i] <= PRN_QZSS_END)
                RTCM3Text("J%02d", Parser->Data.satellites[i]
                - (PRN_QZSS_START-1));
              else if(Parser->Data.satellites[i] >= PRN_BDS_START
              && Parser->Data.satellites[i] <= PRN_BDS_END)
                RTCM3Text("C%02d", Parser->Data.satellites[i]
                - (PRN_BDS_START-1));
              else
                RTCM3Text("%3d", Parser->Data.satellites[i]);
            }
            RTCM3Text("\n");
            j -= 12;
            o += 12;
          }
          if(nh)
          {
            RTCM3Text("%s\n                             "
            "                               END OF HEADER\n", newheader);
          }
          for(i = 0; i < Parser->Data.numsats; ++i)
          {
            for(j = 0; j < Parser->info[RTCM3_MSM_GPS].numtypes; ++j)
            {
              int v = 0;
              long long df = Parser->flags[j];
              int pos = Parser->pos[j];
              if((Parser->Data.dataflags[i] & df)
              && !isnan(Parser->Data.measdata[i][pos])
              && !isinf(Parser->Data.measdata[i][pos]))
              {
                v = 1;
              }
              else
              {
                df = Parser->info[RTCM3_MSM_GPS].flags[j];
                pos = Parser->info[RTCM3_MSM_GPS].pos[j];

                if((Parser->Data.dataflags[i] & df)
                && !isnan(Parser->Data.measdata[i][pos])
                && !isinf(Parser->Data.measdata[i][pos]))
                {
                  v = 1;
                }
              }

              if(!v)
              { /* no or illegal data */
                RTCM3Text("                ");
              }
              else
              {
                char lli = ' ';
                char snr = ' ';
                if(df & (GNSSDF_L1CDATA|GNSSDF_L1PDATA))
                {
                  if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSL1)
                    lli = '1';
                  snr = '0'+Parser->Data.snrL1[i];
                }
                if(df & (GNSSDF_L2CDATA|GNSSDF_L2PDATA))
                {
                  if(Parser->Data.dataflags2[i]
                  & (GNSSDF2_LOCKLOSSL2|GNSSDF2_XCORRL2))
                  {
                    lli = '0';
                    if(Parser->Data.dataflags2[i] & GNSSDF2_LOCKLOSSL2)
                      lli += 1;
                    if(Parser->Data.dataflags2[i] & GNSSDF2_XCORRL2)
                      lli += 4;
                  }
                  snr = '0'+Parser->Data.snrL2[i];
                }
                if((df & GNSSDF_P2DATA) && (Parser->Data.dataflags2[i]
                & GNSSDF2_XCORRL2))
                  lli = '4';
                RTCM3Text("%14.3f%c%c",
                Parser->Data.measdata[i][pos],lli,snr);
              }
              if(j%5 == 4 || j == Parser->info[RTCM3_MSM_GPS].numtypes-1)
                RTCM3Text("\n");
            }
          }
        }
      }
    }
  }
}

#ifndef NO_RTCM3_MAIN
static char datestr[]     = "$Date: 2015-06-01 13:05:52 +0000 (Mon, 01 Jun 2015) $";

/* The string, which is send as agent in HTTP request */
#define AGENTSTRING "NTRIP NtripRTCM3ToRINEX"

#define MAXDATASIZE 1000 /* max number of bytes we can get at once */

static const char encodingTable [64] = {
  'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P',
  'Q','R','S','T','U','V','W','X','Y','Z','a','b','c','d','e','f',
  'g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v',
  'w','x','y','z','0','1','2','3','4','5','6','7','8','9','+','/'
};

/* does not buffer overrun, but breaks directly after an error */
/* returns the number of required bytes */
static int encode(char *buf, int size, const char *user, const char *pwd)
{
  unsigned char inbuf[3];
  char *out = buf;
  int i, sep = 0, fill = 0, bytes = 0;

  while(*user || *pwd)
  {
    i = 0;
    while(i < 3 && *user) inbuf[i++] = *(user++);
    if(i < 3 && !sep)    {inbuf[i++] = ':'; ++sep; }
    while(i < 3 && *pwd)  inbuf[i++] = *(pwd++);
    while(i < 3)         {inbuf[i++] = 0; ++fill; }
    if(out-buf < size-1)
      *(out++) = encodingTable[(inbuf [0] & 0xFC) >> 2];
    if(out-buf < size-1)
      *(out++) = encodingTable[((inbuf [0] & 0x03) << 4)
               | ((inbuf [1] & 0xF0) >> 4)];
    if(out-buf < size-1)
    {
      if(fill == 2)
        *(out++) = '=';
      else
        *(out++) = encodingTable[((inbuf [1] & 0x0F) << 2)
                 | ((inbuf [2] & 0xC0) >> 6)];
    }
    if(out-buf < size-1)
    {
      if(fill >= 1)
        *(out++) = '=';
      else
        *(out++) = encodingTable[inbuf [2] & 0x3F];
    }
    bytes += 4;
  }
  if(out-buf < size)
    *out = 0;
  return bytes;
}

static int stop = 0;

struct Args
{
  const char *server;
  const char *port;
  int         mode;
  int         timeout;
  int         rinex3;
  int         changeobs;
  const char *user;
  const char *password;
  const char *proxyhost;
  const char *proxyport;
  const char *nmea;
  const char *data;
  const char *headerfile;
  const char *sbasephemeris;
  const char *gpsephemeris;
  const char *qzssephemeris;
  const char *glonassephemeris;
  const char *bdsephemeris;
  const char *mixedephemeris;
};

/* option parsing */
#ifdef NO_LONG_OPTS
#define LONG_OPT(a)
#else
#define LONG_OPT(a) a
static struct option opts[] = {
{ "data",             required_argument, 0, 'd'},
{ "server",           required_argument, 0, 's'},
{ "password",         required_argument, 0, 'p'},
{ "port",             required_argument, 0, 'r'},
{ "timeout",          required_argument, 0, 't'},
{ "header",           required_argument, 0, 'f'},
{ "user",             required_argument, 0, 'u'},
{ "bdsephemeris",     required_argument, 0, 'C'},
{ "gpsephemeris",     required_argument, 0, 'E'},
{ "qzssephemeris",    required_argument, 0, 'Q'},
{ "glonassephemeris", required_argument, 0, 'G'},
{ "sbasephemeris",    required_argument, 0, 'B'},
{ "mixedephemeris",   required_argument, 0, 'P'},
{ "rinex3",           no_argument,       0, '3'},
{ "changeobs",        no_argument,       0, 'O'},
{ "proxyport",        required_argument, 0, 'R'},
{ "proxyhost",        required_argument, 0, 'S'},
{ "nmea",             required_argument, 0, 'n'},
{ "mode",             required_argument, 0, 'M'},
{ "help",             no_argument,       0, 'h'},
{0,0,0,0}};
#endif
#define ARGOPT "-d:s:p:r:t:f:u:E:C:G:B:P:Q:M:S:R:n:h3O"

enum MODE { HTTP = 1, RTSP = 2, NTRIP1 = 3, AUTO = 4, END };

static const char *geturl(const char *url, struct Args *args)
{
  static char buf[1000];
  static char *Buffer = buf;
  static char *Bufend = buf+sizeof(buf);

  if(strncmp("ntrip:", url, 6))
    return "URL must start with 'ntrip:'.";
  url += 6; /* skip ntrip: */

  if(*url != '@' && *url != '/')
  {
    /* scan for mountpoint */
    args->data = Buffer;
    while(*url && *url != '@' &&  *url != ';' &&*url != '/' && Buffer != Bufend)
      *(Buffer++) = *(url++);
    if(Buffer == args->data)
      return "Mountpoint required.";
    else if(Buffer >= Bufend-1)
      return "Parsing buffer too short.";
    *(Buffer++) = 0;
  }

  if(*url == '/') /* username and password */
  {
    ++url;
    args->user = Buffer;
    while(*url && *url != '@' && *url != ';' && *url != ':' && Buffer != Bufend)
      *(Buffer++) = *(url++);
    if(Buffer == args->user)
      return "Username cannot be empty.";
    else if(Buffer >= Bufend-1)
      return "Parsing buffer too short.";
    *(Buffer++) = 0;

    if(*url == ':') ++url;

    args->password = Buffer;
    while(*url && *url != '@' && *url != ';' && Buffer != Bufend)
      *(Buffer++) = *(url++);
    if(Buffer == args->password)
      return "Password cannot be empty.";
    else if(Buffer >= Bufend-1)
      return "Parsing buffer too short.";
    *(Buffer++) = 0;
  }

  if(*url == '@') /* server */
  {
    ++url;
    if(*url != '@' && *url != ':')
    {
      args->server = Buffer;
      while(*url && *url != '@' && *url != ':' && *url != ';' && Buffer != Bufend)
        *(Buffer++) = *(url++);
      if(Buffer == args->server)
        return "Servername cannot be empty.";
      else if(Buffer >= Bufend-1)
        return "Parsing buffer too short.";
      *(Buffer++) = 0;
    }

    if(*url == ':')
    {
      ++url;
      args->port = Buffer;
      while(*url && *url != '@' && *url != ';' && Buffer != Bufend)
        *(Buffer++) = *(url++);
      if(Buffer == args->port)
        return "Port cannot be empty.";
      else if(Buffer >= Bufend-1)
        return "Parsing buffer too short.";
      *(Buffer++) = 0;
    }

    if(*url == '@') /* proxy */
    {
      ++url;
      args->proxyhost = Buffer;
      while(*url && *url != ':' && *url != ';' && Buffer != Bufend)
        *(Buffer++) = *(url++);
      if(Buffer == args->proxyhost)
        return "Proxy servername cannot be empty.";
      else if(Buffer >= Bufend-1)
        return "Parsing buffer too short.";
      *(Buffer++) = 0;

      if(*url == ':')
      {
        ++url;
        args->proxyport = Buffer;
        while(*url && *url != ';' && Buffer != Bufend)
          *(Buffer++) = *(url++);
        if(Buffer == args->proxyport)
          return "Proxy port cannot be empty.";
        else if(Buffer >= Bufend-1)
          return "Parsing buffer too short.";
        *(Buffer++) = 0;
      }
    }
  }
  if(*url == ';') /* NMEA */
  {
    args->nmea = ++url;
    while(*url)
      ++url;
  }

  return *url ? "Garbage at end of server string." : 0;
}

static int getargs(int argc, char **argv, struct Args *args)
{
  int res = 1;
  int getoptr;
  int help = 0;
  char *t;

  args->server = "www.euref-ip.net";
  args->port = "2101";
  args->timeout = 60;
  args->user = "";
  args->password = "";
  args->data = 0;
  args->headerfile = 0;
  args->gpsephemeris = 0;
  args->qzssephemeris = 0;
  args->sbasephemeris = 0;
  args->glonassephemeris = 0;
  args->bdsephemeris = 0;
  args->mixedephemeris = 0;
  args->rinex3 = 0;
  args->nmea = 0;
  args->changeobs = 0;
  args->proxyhost = 0;
  args->proxyport = "2101";
  args->mode = AUTO;
  help = 0;

  do
  {

#ifdef NO_LONG_OPTS
    switch((getoptr = getopt(argc, argv, ARGOPT)))
#else
    switch((getoptr = getopt_long(argc, argv, ARGOPT, opts, 0)))
#endif
    {
    case 's': args->server = optarg; break;
    case 'u': args->user = optarg; break;
    case 'p': args->password = optarg; break;
    case 'd': args->data = optarg; break;
    case 'f': args->headerfile = optarg; break;
    case 'C': args->bdsephemeris = optarg; break;
    case 'E': args->gpsephemeris = optarg; break;
    case 'B': args->sbasephemeris = optarg; break;
    case 'G': args->glonassephemeris = optarg; break;
    case 'Q': args->qzssephemeris = optarg; break;
    case 'P': args->mixedephemeris = optarg; break;
    case 'r': args->port = optarg; break;
    case '3': args->rinex3 = 1; break;
    case 'S': args->proxyhost = optarg; break;
    case 'n': args->nmea = optarg; break;
    case 'R': args->proxyport = optarg; break;
    case 'O': args->changeobs = 1; break;
    case 'h': help=1; break;
    case 'M':
      args->mode = 0;
      if (!strcmp(optarg,"n") || !strcmp(optarg,"ntrip1"))
        args->mode = NTRIP1;
      else if(!strcmp(optarg,"h") || !strcmp(optarg,"http"))
        args->mode = HTTP;
      else if(!strcmp(optarg,"r") || !strcmp(optarg,"rtsp"))
        args->mode = RTSP;
      else if(!strcmp(optarg,"a") || !strcmp(optarg,"auto"))
        args->mode = AUTO;
      else args->mode = atoi(optarg);
      if((args->mode == 0) || (args->mode >= END))
      {
        fprintf(stderr, "Mode %s unknown\n", optarg);
        res = 0;
      }
      break;
    case 't':
      args->timeout = strtoul(optarg, &t, 10);
      if((t && *t) || args->timeout < 0)
        res = 0;
      break;

    case 1:
      {
        const char *err;
        if((err = geturl(optarg, args)))
        {
          RTCM3Error("%s\n\n", err);
          res = 0;
        }
      }
      break;
    case -1: break;
    }
  } while(getoptr != -1 || !res);

  datestr[0] = datestr[7];
  datestr[1] = datestr[8];
  datestr[2] = datestr[9];
  datestr[3] = datestr[10];
  datestr[5] = datestr[12];
  datestr[6] = datestr[13];
  datestr[8] = datestr[15];
  datestr[9] = datestr[16];
  datestr[4] = datestr[7] = '-';
  datestr[10] = 0;

  if(args->mixedephemeris && !args->rinex3)
  {
    RTCM3Error("RINEX2 cannot created combined ephemeris file.\n");
    res = 0;
  }
  else if(args->mixedephemeris && (args->gpsephemeris || args->glonassephemeris
  || args->bdsephemeris || args->qzssephemeris || args->sbasephemeris))
  {
    RTCM3Error("Combined ephemeris file specified with another one.\n"
    "Please specify only one navigation file.\n");
    res = 0;
  }
  else if(args->bdsephemeris && !args->rinex3)
  {
    RTCM3Error("RINEX2 cannot produce BDS ephemeris.\n");
    res = 0;
  }
  else if(!res || help)
  {
    RTCM3Error("Version %s (%s) GPL" COMPILEDATE
    "\nUsage: %s -s server -u user ...\n"
    " -d " LONG_OPT("--data             ") "the requested data set\n"
    " -f " LONG_OPT("--headerfile       ") "file for RINEX header information\n"
    " -s " LONG_OPT("--server           ") "the server name or address\n"
    " -p " LONG_OPT("--password         ") "the login password\n"
    " -r " LONG_OPT("--port             ") "the server port number (default 2101)\n"
    " -t " LONG_OPT("--timeout          ") "timeout in seconds (default 60)\n"
    " -u " LONG_OPT("--user             ") "the user name\n"
    " -C " LONG_OPT("--bdsephemeris     ") "output file for BDS ephemeris data\n"
    " -E " LONG_OPT("--gpsephemeris     ") "output file for GPS ephemeris data\n"
    " -G " LONG_OPT("--glonassephemeris ") "output file for GLONASS ephemeris data\n"
    " -Q " LONG_OPT("--qzssephemeris    ") "output file for QZSS ephemeris data\n"
    " -B " LONG_OPT("--sbasephemeris    ") "output file for SBAS ephemeris data\n"
    " -P " LONG_OPT("--mixedephemeris   ") "output file for all ephemeris data\n"
    " -3 " LONG_OPT("--rinex3           ") "output RINEX type 3 data\n"
    " -S " LONG_OPT("--proxyhost        ") "proxy name or address\n"
    " -R " LONG_OPT("--proxyport        ") "proxy port, optional (default 2101)\n"
    " -n " LONG_OPT("--nmea             ") "NMEA string for sending to server\n"
    " -O " LONG_OPT("--changeobs        ") "Add observation type change header lines\n"
    " -M " LONG_OPT("--mode             ") "mode for data request\n"
    "     Valid modes are:\n"
    "     1, h, http     NTRIP Version 2.0 Caster in TCP/IP mode\n"
    "     2, r, rtsp     NTRIP Version 2.0 Caster in RTSP/RTP mode\n"
    "     3, n, ntrip1   NTRIP Version 1.0 Caster\n"
    "     4, a, auto     automatic detection (default)\n"
    "or using an URL:\n%s ntrip:data[/user[:password]][@[server][:port][@proxyhost[:proxyport]]][;nmea]\n"
    , revisionstr, datestr, argv[0], argv[0]);
    exit(1);
  }
  return res;
}

/* let the output complete a block if necessary */
static void signalhandler(int sig)
{
  if(!stop)
  {
    RTCM3Error("Stop signal number %d received. "
    "Trying to terminate gentle.\n", sig);
    stop = 1;
    alarm(1);
  }
}

#ifndef WINDOWSVERSION
static void WaitMicro(int mic)
{
  struct timeval tv;
  tv.tv_sec = mic/1000000;
  tv.tv_usec = mic%1000000;
#ifdef DEBUG
  fprintf(stderr, "Waiting %d micro seconds\n", mic);
#endif
  select(0, 0, 0, 0, &tv);
}
#else /* WINDOWSVERSION */
void WaitMicro(int mic)
{
   Sleep(mic/1000);
}
#endif /* WINDOWSVERSION */

#define ALARMTIME   (2*60)

/* for some reason we had to abort hard (maybe waiting for data */
#ifdef __GNUC__
static __attribute__ ((noreturn)) void signalhandler_alarm(
int sig __attribute__((__unused__)))
#else /* __GNUC__ */
static void signalhandler_alarm(int sig)
#endif /* __GNUC__ */
{
  RTCM3Error("Programm forcefully terminated.\n");
  exit(1);
}

int main(int argc, char **argv)
{
  struct Args args;
  struct RTCM3ParserData Parser;

  setbuf(stdout, 0);
  setbuf(stdin, 0);
  setbuf(stderr, 0);

  fixrevision();

  signal(SIGINT, signalhandler);
  signal(SIGALRM,signalhandler_alarm);
  signal(SIGQUIT,signalhandler);
  signal(SIGTERM,signalhandler);
  signal(SIGPIPE,signalhandler);
  memset(&Parser, 0, sizeof(Parser));
  {
    time_t tim;
    tim = time(0) - ((10*365+2+5)*24*60*60+LEAPSECONDS);
    Parser.GPSWeek = tim/(7*24*60*60);
    Parser.GPSTOW = tim%(7*24*60*60);
  }

  if(getargs(argc, argv, &args))
  {
    int sockfd, numbytes;
    char buf[MAXDATASIZE];
    struct sockaddr_in their_addr; /* connector's address information */
    struct hostent *he;
    struct servent *se;
    const char *server, *port, *proxyserver = 0;
    char proxyport[6];
    char *b;
    long i;
    struct timeval tv;

    alarm(ALARMTIME);

    Parser.headerfile = args.headerfile;
    Parser.glonassephemeris = args.glonassephemeris;
    Parser.gpsephemeris = args.gpsephemeris;
    Parser.bdsephemeris = args.bdsephemeris;
    Parser.qzssephemeris = args.qzssephemeris;
    Parser.sbasephemeris = args.sbasephemeris;
    Parser.mixedephemeris = args.mixedephemeris;
    Parser.rinex3 = args.rinex3;
    Parser.changeobs = args.changeobs;

    if(args.proxyhost)
    {
      int p;
      if((i = strtol(args.port, &b, 10)) && (!b || !*b))
        p = i;
      else if(!(se = getservbyname(args.port, 0)))
      {
        RTCM3Error("Can't resolve port %s.", args.port);
        exit(1);
      }
      else
      {
        p = ntohs(se->s_port);
      }
      snprintf(proxyport, sizeof(proxyport), "%d", p);
      port = args.proxyport;
      proxyserver = args.server;
      server = args.proxyhost;
    }
    else
    {
      server = args.server;
      port = args.port;
    }

    memset(&their_addr, 0, sizeof(struct sockaddr_in));
    if((i = strtol(port, &b, 10)) && (!b || !*b))
      their_addr.sin_port = htons(i);
    else if(!(se = getservbyname(port, 0)))
    {
      RTCM3Error("Can't resolve port %s.", port);
      exit(1);
    }
    else
    {
      their_addr.sin_port = se->s_port;
    }
    if(!(he=gethostbyname(server)))
    {
      RTCM3Error("Server name lookup failed for '%s'.\n", server);
      exit(1);
    }
    if((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
    {
      perror("socket");
      exit(1);
    }

    tv.tv_sec  = args.timeout;
    tv.tv_usec = 0;
    if(setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, (struct timeval *)&tv, sizeof(struct timeval) ) == -1)
    {
      RTCM3Error("Function setsockopt: %s\n", strerror(errno));
      exit(1);
    }

    their_addr.sin_family = AF_INET;
    their_addr.sin_addr = *((struct in_addr *)he->h_addr);

    if(args.data && args.mode == RTSP)
    {
      struct sockaddr_in local;
      int sockudp, localport;
      int cseq = 1;
      socklen_t len;

      if((sockudp = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
      {
        perror("socket");
        exit(1);
      }
      /* fill structure with local address information for UDP */
      memset(&local, 0, sizeof(local));
      local.sin_family = AF_INET;
      local.sin_port = htons(0);
      local.sin_addr.s_addr = htonl(INADDR_ANY);
      len = sizeof(local);
      /* bind() in order to get a random RTP client_port */
      if((bind(sockudp, (struct sockaddr *)&local, len)) < 0)
      {
        perror("bind");
        exit(1);
      }
      if((getsockname(sockudp, (struct sockaddr*)&local, &len)) != -1)
      {
        localport = ntohs(local.sin_port);
      }
      else
      {
        perror("local access failed");
        exit(1);
      }
      if(connect(sockfd, (struct sockaddr *)&their_addr,
      sizeof(struct sockaddr)) == -1)
      {
        perror("connect");
        exit(1);
      }
      i=snprintf(buf, MAXDATASIZE-40, /* leave some space for login */
      "SETUP rtsp://%s%s%s/%s RTSP/1.0\r\n"
      "CSeq: %d\r\n"
      "Ntrip-Version: Ntrip/2.0\r\n"
      "Ntrip-Component: Ntripclient\r\n"
      "User-Agent: %s/%s\r\n"
      "Transport: RTP/GNSS;unicast;client_port=%u\r\n"
      "Authorization: Basic ",
      args.server, proxyserver ? ":" : "", proxyserver ? args.port : "",
      args.data, cseq++, AGENTSTRING, revisionstr, localport);
      if(i > MAXDATASIZE-40 || i < 0) /* second check for old glibc */
      {
        RTCM3Error("Requested data too long\n");
        exit(1);
      }
      i += encode(buf+i, MAXDATASIZE-i-4, args.user, args.password);
      if(i > MAXDATASIZE-4)
      {
        RTCM3Error("Username and/or password too long\n");
        exit(1);
      }
      buf[i++] = '\r';
      buf[i++] = '\n';
      buf[i++] = '\r';
      buf[i++] = '\n';
      if(args.nmea)
      {
        int j = snprintf(buf+i, MAXDATASIZE-i, "%s\r\n", args.nmea);
        if(j >= 0 && j < MAXDATASIZE-i)
          i += j;
        else
        {
          RTCM3Error("NMEA string too long\n");
          exit(1);
        }
      }
      if(send(sockfd, buf, (size_t)i, 0) != i)
      {
        perror("send");
        exit(1);
      }
      if((numbytes=recv(sockfd, buf, MAXDATASIZE-1, 0)) != -1)
      {
        if(numbytes >= 17 && !strncmp(buf, "RTSP/1.0 200 OK\r\n", 17))
        {
          int serverport = 0, session = 0;
          const char *portcheck = "server_port=";
          const char *sessioncheck = "session: ";
          int l = strlen(portcheck)-1;
          int j=0;
          for(i = 0; j != l && i < numbytes-l; ++i)
          {
            for(j = 0; j < l && tolower(buf[i+j]) == portcheck[j]; ++j)
              ;
          }
          if(i == numbytes-l)
          {
            RTCM3Error("No server port number found\n");
            exit(1);
          }
          else
          {
            i+=l;
            while(i < numbytes && buf[i] >= '0' && buf[i] <= '9')
              serverport = serverport * 10 + buf[i++]-'0';
            if(buf[i] != '\r' && buf[i] != ';')
            {
              RTCM3Error("Could not extract server port\n");
              exit(1);
            }
          }
          l = strlen(sessioncheck)-1;
          j=0;
          for(i = 0; j != l && i < numbytes-l; ++i)
          {
            for(j = 0; j < l && tolower(buf[i+j]) == sessioncheck[j]; ++j)
              ;
          }
          if(i == numbytes-l)
          {
            RTCM3Error("No session number found\n");
            exit(1);
          }
          else
          {
            i+=l;
            while(i < numbytes && buf[i] >= '0' && buf[i] <= '9')
              session = session * 10 + buf[i++]-'0';
            if(buf[i] != '\r')
            {
              RTCM3Error("Could not extract session number\n");
              exit(1);
            }
          }

          i = snprintf(buf, MAXDATASIZE,
          "PLAY rtsp://%s%s%s/%s RTSP/1.0\r\n"
          "CSeq: %d\r\n"
          "Session: %d\r\n"
          "\r\n",
          args.server, proxyserver ? ":" : "", proxyserver ? args.port : "",
          args.data, cseq++, session);

          if(i > MAXDATASIZE || i < 0) /* second check for old glibc */
          {
            RTCM3Error("Requested data too long\n");
            exit(1);
          }
          if(send(sockfd, buf, (size_t)i, 0) != i)
          {
            perror("send");
            exit(1);
          }
          if((numbytes=recv(sockfd, buf, MAXDATASIZE-1, 0)) != -1)
          {
            if(numbytes >= 17 && !strncmp(buf, "RTSP/1.0 200 OK\r\n", 17))
            {
              struct sockaddr_in addrRTP;
              /* fill structure with caster address information for UDP */
              memset(&addrRTP, 0, sizeof(addrRTP));
              addrRTP.sin_family = AF_INET;
              addrRTP.sin_port   = htons(serverport);
              their_addr.sin_addr = *((struct in_addr *)he->h_addr);
              len = sizeof(addrRTP);
              int ts = 0;
              int sn = 0;
              int ssrc = 0;
              int init = 0;
              int u, v, w;
              while(!stop && (i = recvfrom(sockudp, buf, 1526, 0,
              (struct sockaddr*) &addrRTP, &len)) > 0)
              {
                alarm(ALARMTIME);
                if(i >= 12+1 && (unsigned char)buf[0] == (2 << 6) && buf[1] == 0x60)
                {
                  u= ((unsigned char)buf[2]<<8)+(unsigned char)buf[3];
                  v = ((unsigned char)buf[4]<<24)+((unsigned char)buf[5]<<16)
                  +((unsigned char)buf[6]<<8)+(unsigned char)buf[7];
                  w = ((unsigned char)buf[8]<<24)+((unsigned char)buf[9]<<16)
                  +((unsigned char)buf[10]<<8)+(unsigned char)buf[11];

                  if(init)
                  {
                    int z;
                    if(u < -30000 && sn > 30000) sn -= 0xFFFF;
                    if(ssrc != w || ts > v)
                    {
                      RTCM3Error("Illegal UDP data received.\n");
                      exit(1);
                    }
                    if(u > sn) /* don't show out-of-order packets */
                    for(z = 12; z < i && !stop; ++z)
                      HandleByte(&Parser, (unsigned int) buf[z]);
                  }
                  sn = u; ts = v; ssrc = w; init = 1;
                }
                else
                {
                  RTCM3Error("Illegal UDP header.\n");
                  exit(1);
                }
              }
            }
            i = snprintf(buf, MAXDATASIZE,
            "TEARDOWN rtsp://%s%s%s/%s RTSP/1.0\r\n"
            "CSeq: %d\r\n"
            "Session: %d\r\n"
            "\r\n",
            args.server, proxyserver ? ":" : "", proxyserver ? args.port : "",
            args.data, cseq++, session);

            if(i > MAXDATASIZE || i < 0) /* second check for old glibc */
            {
              RTCM3Error("Requested data too long\n");
              exit(1);
            }
            if(send(sockfd, buf, (size_t)i, 0) != i)
            {
              perror("send");
              exit(1);
            }
          }
          else
          {
            RTCM3Error("Could not start data stream.\n");
            exit(1);
          }
        }
        else
        {
          RTCM3Error("Could not setup initial control connection.\n");
          exit(1);
        }
      }
      else
      {
        perror("recv");
        exit(1);
      }
    }
    else
    {
      if(connect(sockfd, (struct sockaddr *)&their_addr,
      sizeof(struct sockaddr)) == -1)
      {
        perror("connect");
        exit(1);
      }
      if(!args.data)
      {
        i = snprintf(buf, MAXDATASIZE,
        "GET %s%s%s%s/ HTTP/1.0\r\n"
        "Host: %s\r\n%s"
        "User-Agent: %s/%s\r\n"
        "Connection: close\r\n"
        "\r\n"
        , proxyserver ? "http://" : "", proxyserver ? proxyserver : "",
        proxyserver ? ":" : "", proxyserver ? proxyport : "",
        args.server, args.mode == NTRIP1 ? "" : "Ntrip-Version: Ntrip/2.0\r\n",
        AGENTSTRING, revisionstr);
      }
      else
      {
        i=snprintf(buf, MAXDATASIZE-40, /* leave some space for login */
        "GET %s%s%s%s/%s HTTP/1.0\r\n"
        "Host: %s\r\n%s"
        "User-Agent: %s/%s\r\n"
        "Connection: close\r\n"
        "Authorization: Basic "
        , proxyserver ? "http://" : "", proxyserver ? proxyserver : "",
        proxyserver ? ":" : "", proxyserver ? proxyport : "",
        args.data, args.server,
        args.mode == NTRIP1 ? "" : "Ntrip-Version: Ntrip/2.0\r\n",
        AGENTSTRING, revisionstr);
        if(i > MAXDATASIZE-40 || i < 0) /* second check for old glibc */
        {
          RTCM3Error("Requested data too long\n");
          exit(1);
        }
        i += encode(buf+i, MAXDATASIZE-i-4, args.user, args.password);
        if(i > MAXDATASIZE-4)
        {
          RTCM3Error("Username and/or password too long\n");
          exit(1);
        }
        buf[i++] = '\r';
        buf[i++] = '\n';
        buf[i++] = '\r';
        buf[i++] = '\n';
        if(args.nmea)
        {
          int j = snprintf(buf+i, MAXDATASIZE-i, "%s\r\n", args.nmea);
          if(j >= 0 && j < MAXDATASIZE-i)
            i += j;
          else
          {
            RTCM3Error("NMEA string too long\n");
            exit(1);
          }
        }
      }
      if(send(sockfd, buf, (size_t)i, 0) != i)
      {
        perror("send");
        exit(1);
      }
      if(args.data)
      {
        int k = 0;
        int chunkymode = 0;
        int totalbytes = 0;
        int chunksize = 0;

        while(!stop && (numbytes=recv(sockfd, buf, MAXDATASIZE-1, 0)) != -1)
        {
          if(numbytes > 0)
            alarm(ALARMTIME);
          else
          {
            WaitMicro(100);
            continue;
          }
          if(!k)
          {
            if(numbytes > 17 && (!strncmp(buf, "HTTP/1.1 200 OK\r\n", 17)
            || !strncmp(buf, "HTTP/1.0 200 OK\r\n", 17)))
            {
              const char *datacheck = "Content-Type: gnss/data\r\n";
              const char *chunkycheck = "Transfer-Encoding: chunked\r\n";
              int l = strlen(datacheck)-1;
              int j=0;
              for(i = 0; j != l && i < numbytes-l; ++i)
              {
                for(j = 0; j < l && buf[i+j] == datacheck[j]; ++j)
                  ;
              }
              if(i == numbytes-l)
              {
                RTCM3Error("No 'Content-Type: gnss/data' found\n");
                exit(1);
              }
              l = strlen(chunkycheck)-1;
              j=0;
              for(i = 0; j != l && i < numbytes-l; ++i)
              {
                for(j = 0; j < l && buf[i+j] == chunkycheck[j]; ++j)
                  ;
              }
              if(i < numbytes-l)
                chunkymode = 1;
            }
            else if(numbytes < 12 || strncmp("ICY 200 OK\r\n", buf, 12))
            {
              RTCM3Error("Could not get the requested data: ");
              for(k = 0; k < numbytes && buf[k] != '\n' && buf[k] != '\r'; ++k)
              {
                RTCM3Error("%c", isprint(buf[k]) ? buf[k] : '.');
              }
              RTCM3Error("\n");
              exit(1);
            }
            else if(args.mode != NTRIP1)
            {
              if(args.mode != AUTO)
              {
                RTCM3Error("NTRIP version 2 HTTP connection failed%s.\n",
                args.mode == AUTO ? ", falling back to NTRIP1" : "");
              }
              if(args.mode == HTTP)
                exit(1);
            }
            ++k;
          }
          else
          {
            if(chunkymode)
            {
              int stop = 0;
              int pos = 0;
              while(!stop && pos < numbytes)
              {
                switch(chunkymode)
                {
                case 1: /* reading number starts */
                  chunksize = 0;
                  ++chunkymode; /* no break */
                case 2: /* during reading number */
                  i = buf[pos++];
                  if(i >= '0' && i <= '9') chunksize = chunksize*16+i-'0';
                  else if(i >= 'a' && i <= 'f') chunksize = chunksize*16+i-'a'+10;
                  else if(i >= 'A' && i <= 'F') chunksize = chunksize*16+i-'A'+10;
                  else if(i == '\r') ++chunkymode;
                  else if(i == ';') chunkymode = 5;
                  else stop = 1;
                  break;
                case 3: /* scanning for return */
                  if(buf[pos++] == '\n') chunkymode = chunksize ? 4 : 1;
                  else stop = 1;
                  break;
                case 4: /* output data */
                  i = numbytes-pos;
                  if(i > chunksize) i = chunksize;
                  {
                    int z;
                    for(z = 0; z < i && !stop; ++z)
                      HandleByte(&Parser, (unsigned int) buf[pos+z]);
                  }
                  totalbytes += i;
                  chunksize -= i;
                  pos += i;
                  if(!chunksize)
                    chunkymode = 1;
                  break;
                case 5:
                  if(i == '\r') chunkymode = 3;
                  break;
                }
              }
              if(stop)
              {
                RTCM3Error("Error in chunky transfer encoding\n");
                break;
              }
            }
            else
            {
              totalbytes += numbytes;
              {
                int z;
                for(z = 0; z < numbytes && !stop; ++z)
                  HandleByte(&Parser, (unsigned int) buf[z]);
              }
            }
            if(totalbytes < 0) /* overflow */
            {
              totalbytes = 0;
            }
          }
        }
      }
      else
      {
        while(!stop && (numbytes=recv(sockfd, buf, MAXDATASIZE-1, 0)) > 0)
        {
          alarm(ALARMTIME);
          fwrite(buf, (size_t)numbytes, 1, stdout);
        }
      }
      close(sockfd);
    }
  }
  return 0;
}
#endif /* NO_RTCM3_MAIN */