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4f36210536
gnss-sdr/src/algorithms/libs/rtklib/rtklib_stream.cc
Carles Fernandez 4f36210536
Fix warnings
2023-12-01 10:20:52 +01:00

2869 lines
86 KiB
C++
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/*!
* \file rtklib_stream.cc
* \brief streaming functions
* \authors <ul>
* <li> 2007-2013, T. Takasu
* <li> 2017, Javier Arribas
* <li> 2017, Carles Fernandez
* </ul>
*
* This is a derived work from RTKLIB http://www.rtklib.com/
* The original source code at https://github.com/tomojitakasu/RTKLIB is
* released under the BSD 2-clause license with an additional exclusive clause
* that does not apply here. This additional clause is reproduced below:
*
* " The software package includes some companion executive binaries or shared
* libraries necessary to execute APs on Windows. These licenses succeed to the
* original ones of these software. "
*
* Neither the executive binaries nor the shared libraries are required by, used
* or included in GNSS-SDR.
*
* -----------------------------------------------------------------------------
* Copyright (C) 2007-2013, T. Takasu
* Copyright (C) 2017, Javier Arribas
* Copyright (C) 2017, Carles Fernandez
* All rights reserved.
*
* SPDX-License-Identifier: BSD-2-Clause
*
* -----------------------------------------------------------------------------
*/
#include "rtklib_stream.h"
#include "gnss_sdr_make_unique.h" // for std::make:unique in C++11
#include "gnss_sdr_string_literals.h" // for std::string_literals
#include "rtklib_rtkcmn.h"
#include "rtklib_solution.h"
#include <arpa/inet.h>
#include <cctype>
#include <cerrno>
#include <cinttypes>
#include <cstring>
#include <deque>
#include <fcntl.h>
#include <memory>
#include <netdb.h>
#include <netinet/tcp.h>
#include <regex>
#include <sstream>
#include <string>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <termios.h>
#include <unistd.h>
using namespace std::string_literals;
/* global options ------------------------------------------------------------*/
static int toinact = 10000; /* inactive timeout (ms) */
static int ticonnect = 10000; /* interval to re-connect (ms) */
static int tirate = 1000; /* avraging time for data rate (ms) */
static int buffsize = 32768; /* receive/send buffer size (bytes) */
static char localdir[1024] = ""; /* local directory for ftp/http */
static char proxyaddr[256] = ""; /* http/ntrip/ftp proxy address */
static unsigned int tick_master = 0; /* time tick master for replay */
static int fswapmargin = 30; /* file swap margin (s) */
/* open serial ---------------------------------------------------------------*/
serial_t *openserial(const char *path, int mode, char *msg)
{
const int br[] = {
300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400};
serial_t *serial;
int i;
int brate = 9600;
int bsize = 8;
int stopb = 1;
char *p;
char parity = 'N';
char dev[128];
char port[128] = "";
port[127] = '\0';
char fctr[64] = "";
const speed_t bs[] = {
B300, B600, B1200, B2400, B4800, B9600, B19200, B38400, B57600, B115200, B230400};
struct termios ios
{
};
int rw = 0;
tracet(3, "openserial: path=%s mode=%d\n", path, mode);
if (!(serial = static_cast<serial_t *>(malloc(sizeof(serial_t)))))
{
return nullptr;
}
if ((p = strchr(const_cast<char *>(path), ':')))
{
strncpy(port, path, p - path);
port[p - path] = '\0';
sscanf(p, ":%d:%d:%c:%d:%s", &brate, &bsize, &parity, &stopb, fctr);
}
else if (strlen(path) < 128)
{
std::strncpy(port, path, 127);
port[127] = '\0';
}
for (i = 0; i < 10; i++)
{
if (br[i] == brate)
{
break;
}
}
if (i >= 11)
{
std::snprintf(msg, MAXSTRMSG, "bitrate error (%d)", brate);
tracet(1, "openserial: %s path=%s\n", msg, path);
free(serial);
return nullptr;
}
parity = static_cast<char>(toupper(static_cast<int>(parity)));
std::string s_aux = "/dev/"s + std::string(port);
s_aux.resize(128, '\0');
int n = s_aux.length();
for (i = 0; i < n; i++)
{
dev[i] = s_aux[i];
}
if (n == 0)
{
dev[0] = '\0';
}
if ((mode & STR_MODE_R) && (mode & STR_MODE_W))
{
rw = O_RDWR;
}
else if (mode & STR_MODE_R)
{
rw = O_RDONLY;
}
else if (mode & STR_MODE_W)
{
rw = O_WRONLY;
}
if ((serial->dev = open(dev, rw | O_NOCTTY | O_NONBLOCK)) < 0)
{
std::snprintf(msg, MAXSTRMSG, "device open error (%d)", errno);
tracet(1, "openserial: %s dev=%s\n", msg, dev);
free(serial);
return nullptr;
}
tcgetattr(serial->dev, &ios);
ios.c_iflag = 0;
ios.c_oflag = 0;
ios.c_lflag = 0; /* non-canonical */
ios.c_cc[VMIN] = 0; /* non-block-mode */
ios.c_cc[VTIME] = 0;
cfsetospeed(&ios, bs[i]);
cfsetispeed(&ios, bs[i]);
ios.c_cflag |= bsize == 7 ? CS7 : CS8;
ios.c_cflag |= parity == 'O' ? (PARENB | PARODD) : (parity == 'E' ? PARENB : 0);
ios.c_cflag |= stopb == 2 ? CSTOPB : 0;
ios.c_cflag |= !strcmp(fctr, "rts") ? CRTSCTS : 0;
tcsetattr(serial->dev, TCSANOW, &ios);
tcflush(serial->dev, TCIOFLUSH);
return serial;
}
/* close serial --------------------------------------------------------------*/
void closeserial(serial_t *serial)
{
if (!serial)
{
return;
}
tracet(3, "closeserial: dev=%d\n", serial->dev);
close(serial->dev);
free(serial);
}
/* read serial ---------------------------------------------------------------*/
int readserial(serial_t *serial, unsigned char *buff, int n, char *msg __attribute__((unused)))
{
int nr;
if (!serial)
{
return 0;
}
tracet(4, "readserial: dev=%d n=%d\n", serial->dev, n);
if ((nr = read(serial->dev, buff, n)) < 0)
{
return 0;
}
tracet(5, "readserial: exit dev=%d nr=%d\n", serial->dev, nr);
return nr;
}
/* write serial --------------------------------------------------------------*/
int writeserial(serial_t *serial, unsigned char *buff, int n, char *msg __attribute__((unused)))
{
int ns;
if (!serial)
{
return 0;
}
tracet(3, "writeserial: dev=%d n=%d\n", serial->dev, n);
if ((ns = write(serial->dev, buff, n)) < 0)
{
return 0;
}
tracet(5, "writeserial: exit dev=%d ns=%d\n", serial->dev, ns);
return ns;
}
/* get state serial ----------------------------------------------------------*/
int stateserial(serial_t *serial)
{
return !serial ? 0 : (serial->error ? -1 : 2);
}
/* open file -----------------------------------------------------------------*/
int openfile_(file_t *file, gtime_t time, char *msg)
{
FILE *fp;
char tagpath[MAXSTRPATH + 4] = "";
char tagh[TIMETAGH_LEN + 1] = "";
tracet(3, "openfile_: path=%s time=%s\n", file->path.data(), time_str(time, 0));
file->time = utc2gpst(timeget());
file->tick = file->tick_f = tickget();
file->fpos = 0;
/* use stdin or stdout if file path is empty */
if (file->path.empty())
{
file->fp = file->mode & STR_MODE_R ? stdin : stdout;
return 1;
}
/* replace keywords */
reppath(file->path, file->openpath, time, "", "");
/* create directory */
if ((file->mode & STR_MODE_W) && !(file->mode & STR_MODE_R))
{
createdir(file->openpath.data());
}
char const *mode;
if (file->mode & STR_MODE_R)
{
mode = "rb";
}
else
{
mode = "wb";
}
if (!(file->fp = fopen(file->openpath.data(), mode)))
{
std::snprintf(msg, MAXSTRMSG, "file open error");
tracet(1, "openfile: %s\n", msg);
return 0;
}
tracet(4, "openfile_: open file %s (%s)\n", file->openpath.data(), mode);
std::snprintf(tagpath, MAXSTRPATH + 4, "%s.tag", file->openpath.data());
if (file->timetag)
{ /* output/sync time-tag */
if (!(file->fp_tag = fopen(tagpath, mode)))
{
std::snprintf(msg, MAXSTRMSG, "tag open error");
tracet(1, "openfile: %s\n", msg);
fclose(file->fp);
return 0;
}
tracet(4, "openfile_: open tag file %s (%s)\n", tagpath, mode);
if (file->mode & STR_MODE_R)
{
if (fread(&tagh, TIMETAGH_LEN, 1, file->fp_tag) == 1 &&
fread(&file->time, sizeof(file->time), 1, file->fp_tag) == 1)
{
memcpy(&file->tick_f, tagh + TIMETAGH_LEN - 4, sizeof(file->tick_f));
}
else
{
file->tick_f = 0;
}
/* adust time to read playback file */
timeset(file->time);
}
else
{
std::snprintf(tagh, TIMETAGH_LEN + 1, "TIMETAG RTKLIB %s", VER_RTKLIB);
memcpy(tagh + TIMETAGH_LEN - 4, &file->tick_f, sizeof(file->tick_f));
fwrite(&tagh, 1, TIMETAGH_LEN, file->fp_tag);
fwrite(&file->time, 1, sizeof(file->time), file->fp_tag);
/* time tag file structure */
/* HEADER(60)+TICK(4)+TIME(12)+ */
/* TICK0(4)+FPOS0(4/8)+ */
/* TICK1(4)+FPOS1(4/8)+... */
}
}
else if (file->mode & STR_MODE_W)
{ /* remove time-tag */
if ((fp = fopen(tagpath, "rbe")))
{
fclose(fp);
if (remove(tagpath) != 0)
{
trace(1, "Error removing file");
}
}
}
return 1;
}
/* close file ----------------------------------------------------------------*/
void closefile_(file_t *file)
{
tracet(3, "closefile_: path=%s\n", file->path.data());
if (file->fp)
{
fclose(file->fp);
file->fp = nullptr;
}
if (file->fp_tag)
{
fclose(file->fp_tag);
file->fp_tag = nullptr;
}
if (file->fp_tmp)
{
fclose(file->fp_tmp);
file->fp_tmp = nullptr;
}
if (file->fp_tag_tmp)
{
fclose(file->fp_tag_tmp);
file->fp_tag_tmp = nullptr;
}
}
/* open file (path=filepath[::T[::+<off>][::x<speed>]][::S=swapintv]) --------*/
file_t *openfile(std::string const &path, int mode, char *msg)
{
tracet(3, "openfile: path=%s mode=%d\n", path.data(), mode);
if ((mode & (STR_MODE_R | STR_MODE_W)) == 0)
{
return nullptr;
}
// Split the string by regular expression (in this case, the trivial "::" string)
std::regex re("::");
auto first = std::sregex_token_iterator(path.begin(), path.end(), re, -1);
auto last = std::sregex_token_iterator();
std::deque<std::string> tokens(first, last);
auto file = std::make_unique<file_t>();
file->mode = mode;
file->path = tokens.front(); // first token is the path
tokens.pop_front();
/* file options */
while (not tokens.empty())
{
auto tag = tokens.front();
tokens.pop_front();
// edge case that may not be possible, but I don't want to test for right now
if (tag.empty()) continue; // NOLINT(readability-braces-around-statements)
if (tag == "T")
{
file->timetag = 1;
}
else if (tag[0] == '+')
{
double start = 0.0;
std::istringstream ss(tag);
ss.ignore(1, '+') >> start;
// do we care if there are extra characters?
if (start < 0)
{
start = 0;
}
file->start = start;
}
else if (tag[0] == 'x')
{
double speed = 0.0;
std::istringstream ss(tag);
ss.ignore(1, 'x') >> speed;
// do we care if there are extra characters?
file->speed = speed;
}
else if (tag[0] == 'S')
{
double swapintv = 0.0;
std::istringstream ss(tag);
ss.ignore(1, 'S').ignore(1, '=') >> swapintv;
// do we care if there are extra characters?
if (swapintv < 0) swapintv = 0; // NOLINT(readability-braces-around-statements)
file->swapintv = swapintv;
}
else
{
// unexpected value ... not previously handled
}
}
initlock(&file->lock);
auto time = utc2gpst(timeget());
/* open new file */
if (!openfile_(file.get(), time, msg))
{
file.reset();
}
return file.release(); // ownership belongs to the caller now
}
/* close file ----------------------------------------------------------------*/
void closefile(file_t *file)
{
if (file)
{
std::unique_ptr<file_t> fileH(file);
tracet(3, "closefile: fp=%p \n", fileH->fp);
closefile_(fileH.get());
}
}
/* open new swap file --------------------------------------------------------*/
void swapfile(file_t *file, gtime_t time, char *msg)
{
std::string openpath;
tracet(3, "swapfile: fp=%p \n time=%s\n", file->fp, time_str(time, 0));
/* return if old swap file open */
if (file->fp_tmp || file->fp_tag_tmp)
{
return;
}
/* check path of new swap file */
reppath(file->path, openpath, time, "", "");
if (openpath == file->openpath)
{
tracet(2, "swapfile: no need to swap %s\n", openpath.data());
return;
}
/* save file pointer to temporary pointer */
file->fp_tmp = file->fp;
file->fp_tag_tmp = file->fp_tag;
/* open new swap file */
openfile_(file, time, msg);
}
/* close old swap file -------------------------------------------------------*/
void swapclose(file_t *file)
{
tracet(3, "swapclose: fp_tmp=%p \n", file->fp_tmp);
if (file->fp_tmp)
{
fclose(file->fp_tmp);
}
if (file->fp_tag_tmp)
{
fclose(file->fp_tag_tmp);
}
file->fp_tmp = file->fp_tag_tmp = nullptr;
}
/* get state file ------------------------------------------------------------*/
int statefile(file_t *file)
{
return file ? 2 : 0;
}
/* read file -----------------------------------------------------------------*/
int readfile(file_t *file, unsigned char *buff, int nmax, char *msg)
{
struct timeval tv = {0, 0};
fd_set rs;
unsigned int t;
unsigned int tick;
int nr = 0;
size_t fpos;
if (!file)
{
return 0;
}
tracet(4, "readfile: fp=%p nmax=%d\n", file->fp, nmax);
if (file->fp == stdin)
{
/* input from stdin */
std::memset(&rs, 0, sizeof(fd_set));
FD_SET(0, &rs);
if (!select(1, &rs, nullptr, nullptr, &tv))
{
return 0;
}
if ((nr = read(0, buff, nmax)) < 0)
{
return 0;
}
return nr;
}
if (file->fp_tag)
{
if (file->repmode)
{ /* slave */
t = (tick_master + file->offset);
}
else
{ /* master */
t = static_cast<unsigned int>((tickget() - file->tick) * file->speed + file->start * 1000.0);
}
for (;;)
{ /* seek file position */
if (fread(&tick, sizeof(tick), 1, file->fp_tag) < 1 ||
fread(&fpos, sizeof(fpos), 1, file->fp_tag) < 1)
{
if (fseek(file->fp, 0, SEEK_END) != 0)
{
trace(1, "fseek error");
}
std::snprintf(msg, MAXSTRPATH, "end");
break;
}
if (file->repmode || file->speed > 0.0)
{
if (static_cast<int>(tick - t) < 1)
{
continue;
}
}
if (!file->repmode)
{
tick_master = tick;
}
std::snprintf(msg, MAXSTRPATH, "T%+.1fs", static_cast<int>(tick) < 0 ? 0.0 : static_cast<int>(tick) / 1000.0);
if (static_cast<int>(fpos - file->fpos) >= nmax)
{
if (fseek(file->fp, fpos, SEEK_SET) != 0)
{
trace(1, "Error fseek");
}
file->fpos = fpos;
return 0;
}
nmax = static_cast<int>(fpos - file->fpos);
if (file->repmode || file->speed > 0.0)
{
if (fseek(file->fp_tag, -static_cast<int64_t>(sizeof(tick) + sizeof(fpos)), SEEK_CUR) != 0)
{
trace(1, "Error fseek");
}
}
break;
}
}
if (nmax > 0)
{
nr = fread(buff, 1, nmax, file->fp);
file->fpos += nr;
if (nr <= 0)
{
std::snprintf(msg, MAXSTRPATH, "end");
}
}
tracet(5, "readfile: fp=%p \n nr=%d fpos=%u\n", file->fp, nr, file->fpos);
return nr;
}
/* write file ----------------------------------------------------------------*/
int writefile(file_t *file, unsigned char *buff, int n, char *msg)
{
gtime_t wtime;
unsigned int ns;
unsigned int tick = tickget();
int week1;
int week2;
double tow1;
double tow2;
double intv;
size_t fpos;
size_t fpos_tmp;
if (!file)
{
return 0;
}
tracet(3, "writefile: fp=%p \n n=%d\n", file->fp, n);
wtime = utc2gpst(timeget()); /* write time in gpst */
/* swap writing file */
if (file->swapintv > 0.0 && file->wtime.time != 0)
{
intv = file->swapintv * 3600.0;
tow1 = time2gpst(file->wtime, &week1);
tow2 = time2gpst(wtime, &week2);
tow2 += 604800.0 * (week2 - week1);
/* open new swap file */
if (floor((tow1 + fswapmargin) / intv) < floor((tow2 + fswapmargin) / intv))
{
swapfile(file, timeadd(wtime, fswapmargin), msg);
}
/* close old swap file */
if (floor((tow1 - fswapmargin) / intv) < floor((tow2 - fswapmargin) / intv))
{
swapclose(file);
}
}
if (!file->fp)
{
return 0;
}
ns = fwrite(buff, 1, n, file->fp);
fpos = ftell(file->fp);
fflush(file->fp);
file->wtime = wtime;
if (file->fp_tmp)
{
fwrite(buff, 1, n, file->fp_tmp);
fpos_tmp = ftell(file->fp_tmp);
fflush(file->fp_tmp);
}
if (file->fp_tag)
{
tick -= file->tick;
fwrite(&tick, 1, sizeof(tick), file->fp_tag);
fwrite(&fpos, 1, sizeof(fpos), file->fp_tag);
fflush(file->fp_tag);
if (file->fp_tag_tmp)
{
fwrite(&tick, 1, sizeof(tick), file->fp_tag_tmp);
fwrite(&fpos_tmp, 1, sizeof(fpos_tmp), file->fp_tag_tmp);
fflush(file->fp_tag_tmp);
}
}
tracet(5, "writefile: fp=%p \n ns=%d tick=%5d fpos=%zd\n", file->fp, ns, tick, fpos);
return static_cast<int>(ns);
}
/* sync files by time-tag ----------------------------------------------------*/
void syncfile(file_t *file1, file_t *file2)
{
if (!file1->fp_tag || !file2->fp_tag)
{
return;
}
file1->repmode = 0;
file2->repmode = 1;
file2->offset = static_cast<int>(file1->tick_f - file2->tick_f);
}
/* decode tcp/ntrip path (path=[user[:passwd]@]addr[:port][/mntpnt[:str]]) ---*/
void decodetcppath(const char *path, char *addr, char *port, char *user,
char *passwd, char *mntpnt, char *str)
{
char buff[MAXSTRPATH + 1] = "";
char *p;
char *q;
tracet(4, "decodetcpepath: path=%s\n", path);
if (port)
{
*port = '\0';
}
if (user)
{
*user = '\0';
}
if (passwd)
{
*passwd = '\0';
}
if (mntpnt)
{
*mntpnt = '\0';
}
if (str)
{
*str = '\0';
}
if (strlen(path) < MAXSTRPATH)
{
std::strncpy(buff, path, MAXSTRPATH);
buff[MAXSTRPATH - 1] = '\0';
}
if (!(p = strrchr(buff, '@')))
{
p = buff;
}
if ((p = strchr(p, '/')))
{
if ((q = strchr(p + 1, ':')))
{
*q = '\0';
if (str)
{
std::strncpy(str, q + 1, NTRIP_MAXSTR);
str[NTRIP_MAXSTR - 1] = '\0';
}
}
*p = '\0';
if (mntpnt)
{
std::strncpy(mntpnt, p + 1, 256);
mntpnt[255] = '\0';
}
}
if ((p = strrchr(buff, '@')))
{
*p++ = '\0';
if ((q = strchr(buff, ':')))
{
*q = '\0';
if (passwd)
{
std::strncpy(passwd, q + 1, 256);
passwd[255] = '\0';
}
}
if (user)
{
std::memcpy(user, buff, 256);
user[255] = '\0';
}
}
else
{
p = buff;
}
if ((q = strchr(p, ':')))
{
*q = '\0';
if (port)
{
std::strncpy(port, q + 1, 256);
port[255] = '\0';
}
}
if (addr)
{
int ret = std::snprintf(addr, 256, "%s", p); // NOLINT(runtime/printf)
if (ret < 0 || ret >= 256)
{
tracet(1, "error reading address");
}
}
}
/* get socket error ----------------------------------------------------------*/
int errsock() { return errno; }
/* set socket option ---------------------------------------------------------*/
int setsock(socket_t sock, char *msg)
{
int bs = buffsize;
int mode = 1;
struct timeval tv = {0, 0};
tracet(3, "setsock: sock=%d\n", sock);
if (setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, reinterpret_cast<const char *>(&tv), sizeof(tv)) == -1 ||
setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, reinterpret_cast<const char *>(&tv), sizeof(tv)) == -1)
{
std::snprintf(msg, MAXSTRMSG, "sockopt error: notimeo");
tracet(1, "setsock: setsockopt error 1 sock=%d err=%d\n", sock, errsock());
closesocket(sock);
return 0;
}
if (setsockopt(sock, SOL_SOCKET, SO_RCVBUF, reinterpret_cast<const char *>(&bs), sizeof(bs)) == -1 ||
setsockopt(sock, SOL_SOCKET, SO_SNDBUF, reinterpret_cast<const char *>(&bs), sizeof(bs)) == -1)
{
tracet(1, "setsock: setsockopt error 2 sock=%d err=%d bs=%d\n", sock, errsock(), bs);
std::snprintf(msg, MAXSTRMSG, "sockopt error: bufsiz");
}
if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast<const char *>(&mode), sizeof(mode)) == -1)
{
tracet(1, "setsock: setsockopt error 3 sock=%d err=%d\n", sock, errsock());
std::snprintf(msg, MAXSTRMSG, "sockopt error: nodelay");
}
return 1;
}
/* non-block accept ----------------------------------------------------------*/
socket_t accept_nb(socket_t sock, struct sockaddr *addr, socklen_t *len)
{
struct timeval tv = {0, 0};
fd_set rs;
std::memset(&rs, 0, sizeof(fd_set));
FD_SET(sock, &rs);
if (!select(sock + 1, &rs, nullptr, nullptr, &tv))
{
return 0;
}
return accept(sock, addr, len);
}
/* non-block connect ---------------------------------------------------------*/
int connect_nb(socket_t sock, struct sockaddr *addr, socklen_t len)
{
struct timeval tv = {0, 0};
fd_set rs;
fd_set ws;
int err;
int flag;
flag = fcntl(sock, F_GETFL, 0);
if (fcntl(sock, F_SETFL, flag | O_NONBLOCK) == -1)
{
trace(1, "fcntl error");
}
if (connect(sock, addr, len) == -1)
{
err = errsock();
if (err != EISCONN && err != EINPROGRESS && err != EALREADY)
{
return -1;
}
std::memset(&rs, 0, sizeof(fd_set));
FD_SET(sock, &rs);
ws = rs;
if (select(sock + 1, &rs, &ws, nullptr, &tv) == 0)
{
return 0;
}
}
return 1;
}
/* non-block receive ---------------------------------------------------------*/
int recv_nb(socket_t sock, unsigned char *buff, int n)
{
struct timeval tv = {0, 0};
fd_set rs;
std::memset(&rs, 0, sizeof(fd_set));
FD_SET(sock, &rs);
if (!select(sock + 1, &rs, nullptr, nullptr, &tv))
{
return 0;
}
return recv(sock, reinterpret_cast<char *>(buff), n, 0);
}
/* non-block send ------------------------------------------------------------*/
int send_nb(socket_t sock, unsigned char *buff, int n)
{
struct timeval tv = {0, 0};
fd_set ws;
std::memset(&ws, 0, sizeof(fd_set));
FD_SET(sock, &ws);
if (!select(sock + 1, nullptr, &ws, nullptr, &tv))
{
return 0;
}
return send(sock, reinterpret_cast<char *>(buff), n, 0);
}
/* generate tcp socket -------------------------------------------------------*/
int gentcp(tcp_t *tcp, int type, char *msg)
{
struct hostent *hp;
#ifdef SVR_REUSEADDR
int opt = 1;
#endif
tracet(3, "gentcp: type=%d\n", type);
/* generate socket */
if ((tcp->sock = socket(AF_INET, SOCK_STREAM, 0)) == -1)
{
std::snprintf(msg, MAXSTRMSG, "socket error (%d)", errsock());
tracet(1, "gentcp: socket error err=%d\n", errsock());
tcp->state = -1;
return 0;
}
if (!setsock(tcp->sock, msg))
{
tcp->state = -1;
return 0;
}
memset(&tcp->addr, 0, sizeof(tcp->addr));
tcp->addr.sin_family = AF_INET;
tcp->addr.sin_port = htons(tcp->port);
if (type == 0)
{ /* server socket */
#ifdef SVR_REUSEADDR
/* multiple-use of server socket */
setsockopt(tcp->sock, SOL_SOCKET, SO_REUSEADDR, (const char *)&opt,
sizeof(opt));
#endif
if (bind(tcp->sock, reinterpret_cast<struct sockaddr *>(&tcp->addr), sizeof(tcp->addr)) == -1)
{
std::snprintf(msg, MAXSTRMSG, "bind error (%d) : %d", errsock(), tcp->port);
tracet(1, "gentcp: bind error port=%d err=%d\n", tcp->port, errsock());
closesocket(tcp->sock);
tcp->state = -1;
return 0;
}
listen(tcp->sock, 5);
}
else
{ /* client socket */
if (!(hp = gethostbyname(tcp->saddr)))
{
std::snprintf(msg, MAXSTRMSG, "address error (%s)", tcp->saddr);
tracet(1, "gentcp: gethostbyname error addr=%s err=%d\n", tcp->saddr, errsock());
closesocket(tcp->sock);
tcp->state = 0;
tcp->tcon = ticonnect;
tcp->tdis = tickget();
return 0;
}
memcpy(&tcp->addr.sin_addr, hp->h_addr, hp->h_length);
}
tcp->state = 1;
tcp->tact = tickget();
tracet(5, "gentcp: exit sock=%d\n", tcp->sock);
return 1;
}
/* disconnect tcp ------------------------------------------------------------*/
void discontcp(tcp_t *tcp, int tcon)
{
tracet(3, "discontcp: sock=%d tcon=%d\n", tcp->sock, tcon);
closesocket(tcp->sock);
tcp->state = 0;
tcp->tcon = tcon;
tcp->tdis = tickget();
}
/* open tcp server -----------------------------------------------------------*/
tcpsvr_t *opentcpsvr(const char *path, char *msg)
{
tcpsvr_t *tcpsvr;
tcpsvr_t tcpsvr0{};
char port[256] = "";
tracet(3, "opentcpsvr: path=%s\n", path);
if (!(tcpsvr = static_cast<tcpsvr_t *>(malloc(sizeof(tcpsvr_t)))))
{
return nullptr;
}
*tcpsvr = tcpsvr0;
decodetcppath(path, tcpsvr->svr.saddr, port, nullptr, nullptr, nullptr, nullptr);
if (sscanf(port, "%d", &tcpsvr->svr.port) < 1)
{
std::snprintf(msg, MAXSTRMSG, "port error: %s", port);
tracet(1, "opentcpsvr: port error port=%s\n", port);
free(tcpsvr);
return nullptr;
}
if (!gentcp(&tcpsvr->svr, 0, msg))
{
free(tcpsvr);
return nullptr;
}
tcpsvr->svr.tcon = 0;
return tcpsvr;
}
/* close tcp server ----------------------------------------------------------*/
void closetcpsvr(tcpsvr_t *tcpsvr)
{
int i;
tracet(3, "closetcpsvr:\n");
for (i = 0; i < MAXCLI; i++)
{
if (tcpsvr->cli[i].state)
{
closesocket(tcpsvr->cli[i].sock);
}
}
closesocket(tcpsvr->svr.sock);
free(tcpsvr);
}
/* update tcp server ---------------------------------------------------------*/
void updatetcpsvr(tcpsvr_t *tcpsvr, char *msg)
{
char saddr[256] = "";
int i;
int j;
int n = 0;
tracet(3, "updatetcpsvr: state=%d\n", tcpsvr->svr.state);
if (tcpsvr->svr.state == 0)
{
return;
}
for (i = 0; i < MAXCLI; i++)
{
if (tcpsvr->cli[i].state)
{
continue;
}
for (j = i + 1; j < MAXCLI; j++)
{
if (!tcpsvr->cli[j].state)
{
continue;
}
tcpsvr->cli[i] = tcpsvr->cli[j];
tcpsvr->cli[j].state = 0;
break;
}
}
for (i = 0; i < MAXCLI; i++)
{
if (!tcpsvr->cli[i].state)
{
continue;
}
std::snprintf(saddr, sizeof(saddr), "%s", tcpsvr->cli[i].saddr);
n++;
}
if (n == 0)
{
tcpsvr->svr.state = 1;
std::snprintf(msg, MAXSTRMSG, "waiting...");
return;
}
tcpsvr->svr.state = 2;
if (n == 1)
{
std::snprintf(msg, MAXSTRMSG, "%s", saddr);
}
else
{
std::snprintf(msg, MAXSTRMSG, "%d clients", n);
}
}
/* accept client connection --------------------------------------------------*/
int accsock(tcpsvr_t *tcpsvr, char *msg)
{
struct sockaddr_in addr
{
};
socket_t sock;
socklen_t len = sizeof(addr);
int i;
int err;
tracet(3, "accsock: sock=%d\n", tcpsvr->svr.sock);
for (i = 0; i < MAXCLI; i++)
{
if (tcpsvr->cli[i].state == 0)
{
break;
}
}
if (i >= MAXCLI)
{
return 0; /* too many client */
}
if ((sock = accept_nb(tcpsvr->svr.sock, reinterpret_cast<struct sockaddr *>(&addr), &len)) == -1)
{
err = errsock();
std::snprintf(msg, MAXSTRMSG, "accept error (%d)", err);
tracet(1, "accsock: accept error sock=%d err=%d\n", tcpsvr->svr.sock, err);
closesocket(tcpsvr->svr.sock);
tcpsvr->svr.state = 0;
return 0;
}
if (sock == 0)
{
return 0;
}
tcpsvr->cli[i].sock = sock;
if (!setsock(tcpsvr->cli[i].sock, msg))
{
return 0;
}
memcpy(&tcpsvr->cli[i].addr, &addr, sizeof(addr));
if (strlen(inet_ntoa(addr.sin_addr)) < 256)
{
std::strncpy(tcpsvr->cli[i].saddr, inet_ntoa(addr.sin_addr), 256);
tcpsvr->cli[i].saddr[255] = '\0';
}
std::snprintf(msg, MAXSTRMSG, "%s", tcpsvr->cli[i].saddr);
tracet(2, "accsock: connected sock=%d addr=%s\n", tcpsvr->cli[i].sock, tcpsvr->cli[i].saddr);
tcpsvr->cli[i].state = 2;
tcpsvr->cli[i].tact = tickget();
return 1;
}
/* wait socket accept --------------------------------------------------------*/
int waittcpsvr(tcpsvr_t *tcpsvr, char *msg)
{
tracet(4, "waittcpsvr: sock=%d state=%d\n", tcpsvr->svr.sock, tcpsvr->svr.state);
if (tcpsvr->svr.state <= 0)
{
return 0;
}
while (accsock(tcpsvr, msg))
{
}
updatetcpsvr(tcpsvr, msg);
return tcpsvr->svr.state == 2;
}
/* read tcp server -----------------------------------------------------------*/
int readtcpsvr(tcpsvr_t *tcpsvr, unsigned char *buff, int n, char *msg)
{
int nr;
int err;
tracet(4, "readtcpsvr: state=%d n=%d\n", tcpsvr->svr.state, n);
if (!waittcpsvr(tcpsvr, msg) || tcpsvr->cli[0].state != 2)
{
return 0;
}
if ((nr = recv_nb(tcpsvr->cli[0].sock, buff, n)) == -1)
{
err = errsock();
tracet(1, "readtcpsvr: recv error sock=%d err=%d\n", tcpsvr->cli[0].sock, err);
std::snprintf(msg, MAXSTRMSG, "recv error (%d)", err);
discontcp(&tcpsvr->cli[0], ticonnect);
updatetcpsvr(tcpsvr, msg);
return 0;
}
if (nr > 0)
{
tcpsvr->cli[0].tact = tickget();
}
tracet(5, "readtcpsvr: exit sock=%d nr=%d\n", tcpsvr->cli[0].sock, nr);
return nr;
}
/* write tcp server ----------------------------------------------------------*/
int writetcpsvr(tcpsvr_t *tcpsvr, unsigned char *buff, int n, char *msg)
{
int i;
int ns = 0;
int err;
tracet(3, "writetcpsvr: state=%d n=%d\n", tcpsvr->svr.state, n);
if (!waittcpsvr(tcpsvr, msg))
{
return 0;
}
for (i = 0; i < MAXCLI; i++)
{
if (tcpsvr->cli[i].state != 2)
{
continue;
}
if ((ns = send_nb(tcpsvr->cli[i].sock, buff, n)) == -1)
{
err = errsock();
tracet(1, "writetcpsvr: send error i=%d sock=%d err=%d\n", i, tcpsvr->cli[i].sock, err);
std::snprintf(msg, MAXSTRMSG, "send error (%d)", err);
discontcp(&tcpsvr->cli[i], ticonnect);
updatetcpsvr(tcpsvr, msg);
return 0;
}
if (ns > 0)
{
tcpsvr->cli[i].tact = tickget();
}
tracet(5, "writetcpsvr: send i=%d ns=%d\n", i, ns);
}
return ns;
}
/* get state tcp server ------------------------------------------------------*/
int statetcpsvr(tcpsvr_t *tcpsvr)
{
return tcpsvr ? tcpsvr->svr.state : 0;
}
/* connect server ------------------------------------------------------------*/
int consock(tcpcli_t *tcpcli, char *msg)
{
int stat;
int err;
tracet(3, "consock: sock=%d\n", tcpcli->svr.sock);
/* wait re-connect */
if (tcpcli->svr.tcon < 0 || (tcpcli->svr.tcon > 0 &&
static_cast<int>(tickget() - tcpcli->svr.tdis) < tcpcli->svr.tcon))
{
return 0;
}
/* non-block connect */
if ((stat = connect_nb(tcpcli->svr.sock, reinterpret_cast<struct sockaddr *>(&tcpcli->svr.addr),
sizeof(tcpcli->svr.addr))) == -1)
{
err = errsock();
std::snprintf(msg, MAXSTRMSG, "connect error (%d)", err);
tracet(1, "consock: connect error sock=%d err=%d\n", tcpcli->svr.sock, err);
closesocket(tcpcli->svr.sock);
tcpcli->svr.state = 0;
return 0;
}
if (!stat)
{ /* not connect */
std::snprintf(msg, MAXSTRMSG, "connecting...");
return 0;
}
std::snprintf(msg, MAXSTRMSG, "%s", tcpcli->svr.saddr);
tracet(2, "consock: connected sock=%d addr=%s\n", tcpcli->svr.sock, tcpcli->svr.saddr);
tcpcli->svr.state = 2;
tcpcli->svr.tact = tickget();
return 1;
}
/* open tcp client -----------------------------------------------------------*/
tcpcli_t *opentcpcli(const char *path, char *msg)
{
tcpcli_t *tcpcli;
tcpcli_t tcpcli0{};
char port[256] = "";
tracet(3, "opentcpcli: path=%s\n", path);
if (!(tcpcli = static_cast<tcpcli_t *>(malloc(sizeof(tcpcli_t)))))
{
return nullptr;
}
*tcpcli = tcpcli0;
decodetcppath(path, tcpcli->svr.saddr, port, nullptr, nullptr, nullptr, nullptr);
if (sscanf(port, "%d", &tcpcli->svr.port) < 1)
{
std::snprintf(msg, MAXSTRMSG, "port error: %s", port);
tracet(1, "opentcp: port error port=%s\n", port);
free(tcpcli);
return nullptr;
}
tcpcli->svr.tcon = 0;
tcpcli->toinact = toinact;
tcpcli->tirecon = ticonnect;
return tcpcli;
}
/* close tcp client ----------------------------------------------------------*/
void closetcpcli(tcpcli_t *tcpcli)
{
tracet(3, "closetcpcli: sock=%d\n", tcpcli->svr.sock);
closesocket(tcpcli->svr.sock);
free(tcpcli);
}
/* wait socket connect -------------------------------------------------------*/
int waittcpcli(tcpcli_t *tcpcli, char *msg)
{
tracet(4, "waittcpcli: sock=%d state=%d\n", tcpcli->svr.sock, tcpcli->svr.state);
if (tcpcli->svr.state < 0)
{
return 0;
}
if (tcpcli->svr.state == 0)
{ /* close */
if (!gentcp(&tcpcli->svr, 1, msg))
{
return 0;
}
}
if (tcpcli->svr.state == 1)
{ /* wait */
if (!consock(tcpcli, msg))
{
return 0;
}
}
if (tcpcli->svr.state == 2)
{ /* connect */
if (tcpcli->toinact > 0 &&
static_cast<int>(tickget() - tcpcli->svr.tact) > tcpcli->toinact)
{
std::snprintf(msg, MAXSTRMSG, "timeout");
tracet(2, "waittcpcli: inactive timeout sock=%d\n", tcpcli->svr.sock);
discontcp(&tcpcli->svr, tcpcli->tirecon);
return 0;
}
}
return 1;
}
/* read tcp client -----------------------------------------------------------*/
int readtcpcli(tcpcli_t *tcpcli, unsigned char *buff, int n, char *msg)
{
int nr;
int err;
tracet(4, "readtcpcli: sock=%d state=%d n=%d\n", tcpcli->svr.sock, tcpcli->svr.state, n);
if (!waittcpcli(tcpcli, msg))
{
return 0;
}
if ((nr = recv_nb(tcpcli->svr.sock, buff, n)) == -1)
{
err = errsock();
tracet(1, "readtcpcli: recv error sock=%d err=%d\n", tcpcli->svr.sock, err);
std::snprintf(msg, MAXSTRMSG, "recv error (%d)", err);
discontcp(&tcpcli->svr, tcpcli->tirecon);
return 0;
}
if (nr > 0)
{
tcpcli->svr.tact = tickget();
}
tracet(5, "readtcpcli: exit sock=%d nr=%d\n", tcpcli->svr.sock, nr);
return nr;
}
/* write tcp client ----------------------------------------------------------*/
int writetcpcli(tcpcli_t *tcpcli, unsigned char *buff, int n, char *msg)
{
int ns;
int err;
tracet(3, "writetcpcli: sock=%d state=%d n=%d\n", tcpcli->svr.sock, tcpcli->svr.state, n);
if (!waittcpcli(tcpcli, msg))
{
return 0;
}
if ((ns = send_nb(tcpcli->svr.sock, buff, n)) == -1)
{
err = errsock();
tracet(1, "writetcp: send error sock=%d err=%d\n", tcpcli->svr.sock, err);
std::snprintf(msg, MAXSTRMSG, "send error (%d)", err);
discontcp(&tcpcli->svr, tcpcli->tirecon);
return 0;
}
if (ns > 0)
{
tcpcli->svr.tact = tickget();
}
tracet(5, "writetcpcli: exit sock=%d ns=%d\n", tcpcli->svr.sock, ns);
return ns;
}
/* get state tcp client ------------------------------------------------------*/
int statetcpcli(tcpcli_t *tcpcli)
{
return tcpcli ? tcpcli->svr.state : 0;
}
/* base64 encoder ------------------------------------------------------------*/
int encbase64(char *str, const unsigned char *byte, int n)
{
const char table[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
int i;
int j;
int k;
int b;
tracet(4, "encbase64: n=%d\n", n);
for (i = j = 0; i / 8 < n;)
{
for (k = b = 0; k < 6; k++, i++)
{
b <<= 1;
if (i / 8 < n)
{
b |= (byte[i / 8] >> (7 - i % 8)) & 0x1;
}
}
str[j++] = table[b];
}
while (j & 0x3)
{
str[j++] = '=';
}
str[j] = '\0';
tracet(5, "encbase64: str=%s\n", str);
return j;
}
/* send ntrip server request -------------------------------------------------*/
int reqntrip_s(ntrip_t *ntrip, char *msg)
{
char buff[256 + NTRIP_MAXSTR];
char *p = buff;
char *s;
s = p;
tracet(3, "reqntrip_s: state=%d\n", ntrip->state);
p += std::snprintf(p, 256 + NTRIP_MAXSTR, "SOURCE %s %s\r\n", ntrip->passwd, ntrip->mntpnt);
p += std::snprintf(p, NTRIP_MAXSTR - (p - s), "Source-Agent: NTRIP %s\r\n", NTRIP_AGENT);
p += std::snprintf(p, NTRIP_MAXSTR - (p - s), "STR: %s\r\n", ntrip->str);
p += std::snprintf(p, sizeof("\r\n") + 1, "\r\n");
if (writetcpcli(ntrip->tcp, reinterpret_cast<unsigned char *>(buff), p - buff, msg) != p - buff)
{
return 0;
}
tracet(2, "reqntrip_s: send request state=%d ns=%" PRIdPTR "\n", ntrip->state, p - buff);
tracet(5, "reqntrip_s: n=%" PRIdPTR " buff=\n%s\n", p - buff, buff);
ntrip->state = 1;
return 1;
}
/* send ntrip client request -------------------------------------------------*/
int reqntrip_c(ntrip_t *ntrip, char *msg)
{
char buff[1024];
char user[512];
char *p = buff;
char *s;
s = p;
tracet(3, "reqntrip_c: state=%d\n", ntrip->state);
p += std::snprintf(p, NTRIP_MAXSTR, "GET %s/%s HTTP/1.0\r\n", ntrip->url, ntrip->mntpnt);
p += std::snprintf(p, NTRIP_MAXSTR - (p - s), "User-Agent: NTRIP %s\r\n", NTRIP_AGENT);
if (!*ntrip->user)
{
p += std::snprintf(p, NTRIP_MAXSTR - (p - s), "Accept: */*\r\n");
p += std::snprintf(p, NTRIP_MAXSTR - (p - s), "Connection: close\r\n");
}
else
{
std::snprintf(user, sizeof(user), "%s:%s", ntrip->user, ntrip->passwd);
p += std::snprintf(p, NTRIP_MAXSTR - (p - s), "Authorization: Basic ");
p += encbase64(p, reinterpret_cast<unsigned char *>(user), strlen(user));
p += std::snprintf(p, sizeof("\r\n") + 1, "\r\n");
}
p += std::snprintf(p, sizeof("\r\n") + 1, "\r\n");
if (writetcpcli(ntrip->tcp, reinterpret_cast<unsigned char *>(buff), p - buff, msg) != p - buff)
{
return 0;
}
tracet(2, "reqntrip_c: send request state=%d ns=%" PRIdPTR "\n", ntrip->state, p - buff);
tracet(5, "reqntrip_c: n=%" PRIdPTR " buff=\n%s\n", p - buff, buff);
ntrip->state = 1;
return 1;
}
/* test ntrip server response ------------------------------------------------*/
int rspntrip_s(ntrip_t *ntrip, char *msg)
{
int i;
int nb;
char *p;
char *q;
tracet(3, "rspntrip_s: state=%d nb=%d\n", ntrip->state, ntrip->nb);
ntrip->buff[ntrip->nb] = '0';
tracet(5, "rspntrip_s: n=%d buff=\n%s\n", ntrip->nb, ntrip->buff);
if ((p = strstr(reinterpret_cast<char *>(ntrip->buff), NTRIP_RSP_OK_SVR)))
{ /* ok */
q = reinterpret_cast<char *>(ntrip->buff);
p += strlen(NTRIP_RSP_OK_SVR);
ntrip->nb -= p - q;
for (i = 0; i < ntrip->nb; i++)
{
*q++ = *p++;
}
ntrip->state = 2;
std::snprintf(msg, MAXSTRMSG, "%s/%s", ntrip->tcp->svr.saddr, ntrip->mntpnt);
tracet(2, "rspntrip_s: response ok nb=%d\n", ntrip->nb);
return 1;
}
if ((p = strstr(reinterpret_cast<char *>(ntrip->buff), NTRIP_RSP_ERROR)))
{ /* error */
nb = ntrip->nb < MAXSTATMSG ? ntrip->nb : MAXSTATMSG;
// strncpy(msg, (char *)ntrip->buff, nb); This line triggers a warning. Replaced by;
std::string s_aux(reinterpret_cast<char *>(ntrip->buff));
s_aux.resize(nb, '\0');
for (i = 0; i < nb; i++)
{
msg[i] = s_aux[i];
}
msg[nb] = 0;
tracet(1, "rspntrip_s: %s nb=%d\n", msg, ntrip->nb);
ntrip->nb = 0;
ntrip->buff[0] = '\0';
ntrip->state = 0;
discontcp(&ntrip->tcp->svr, ntrip->tcp->tirecon);
}
else if (ntrip->nb >= NTRIP_MAXRSP)
{ /* buffer overflow */
std::snprintf(msg, MAXSTRMSG, "response overflow");
tracet(1, "rspntrip_s: response overflow nb=%d\n", ntrip->nb);
ntrip->nb = 0;
ntrip->buff[0] = '\0';
ntrip->state = 0;
discontcp(&ntrip->tcp->svr, ntrip->tcp->tirecon);
}
tracet(5, "rspntrip_s: exit state=%d nb=%d\n", ntrip->state, ntrip->nb);
return 0;
}
/* test ntrip client response ------------------------------------------------*/
int rspntrip_c(ntrip_t *ntrip, char *msg)
{
int i;
char *p;
char *q;
tracet(3, "rspntrip_c: state=%d nb=%d\n", ntrip->state, ntrip->nb);
ntrip->buff[ntrip->nb] = '0';
tracet(5, "rspntrip_c: n=%d buff=\n%s\n", ntrip->nb, ntrip->buff);
if ((p = strstr(reinterpret_cast<char *>(ntrip->buff), NTRIP_RSP_OK_CLI)))
{ /* ok */
q = reinterpret_cast<char *>(ntrip->buff);
p += strlen(NTRIP_RSP_OK_CLI);
ntrip->nb -= p - q;
for (i = 0; i < ntrip->nb; i++)
{
*q++ = *p++;
}
ntrip->state = 2;
std::snprintf(msg, MAXSTRMSG, "%s/%s", ntrip->tcp->svr.saddr, ntrip->mntpnt);
tracet(2, "rspntrip_c: response ok nb=%d\n", ntrip->nb);
return 1;
}
if ((p = strstr(reinterpret_cast<char *>(ntrip->buff), NTRIP_RSP_SRCTBL)))
{ /* source table */
if (!*ntrip->mntpnt)
{ /* source table request */
ntrip->state = 2;
std::snprintf(msg, MAXSTRMSG, "source table received");
tracet(2, "rspntrip_c: receive source table nb=%d\n", ntrip->nb);
return 1;
}
std::snprintf(msg, MAXSTRMSG, "no mountp. reconnect...");
tracet(2, "rspntrip_c: no mount point nb=%d\n", ntrip->nb);
ntrip->nb = 0;
ntrip->buff[0] = '\0';
ntrip->state = 0;
discontcp(&ntrip->tcp->svr, ntrip->tcp->tirecon);
}
else if ((p = strstr(reinterpret_cast<char *>(ntrip->buff), NTRIP_RSP_HTTP)))
{ /* http response */
if ((q = strchr(p, '\r')))
{
*q = '\0';
}
else
{
ntrip->buff[128] = '\0';
}
std::strncpy(msg, p, MAXSTRMSG);
tracet(1, "rspntrip_s: %s nb=%d\n", msg, ntrip->nb);
ntrip->nb = 0;
ntrip->buff[0] = '\0';
ntrip->state = 0;
discontcp(&ntrip->tcp->svr, ntrip->tcp->tirecon);
}
else if (ntrip->nb >= NTRIP_MAXRSP)
{ /* buffer overflow */
std::snprintf(msg, MAXSTRMSG, "response overflow");
tracet(1, "rspntrip_s: response overflow nb=%d\n", ntrip->nb);
ntrip->nb = 0;
ntrip->buff[0] = '\0';
ntrip->state = 0;
discontcp(&ntrip->tcp->svr, ntrip->tcp->tirecon);
}
tracet(5, "rspntrip_c: exit state=%d nb=%d\n", ntrip->state, ntrip->nb);
return 0;
}
/* wait ntrip request/response -----------------------------------------------*/
int waitntrip(ntrip_t *ntrip, char *msg)
{
int n;
char *p;
tracet(4, "waitntrip: state=%d nb=%d\n", ntrip->state, ntrip->nb);
if (ntrip->state < 0)
{
return 0; /* error */
}
if (ntrip->tcp->svr.state < 2)
{
ntrip->state = 0; /* tcp disconnected */
}
if (ntrip->state == 0)
{ /* send request */
if (!(ntrip->type == 0 ? reqntrip_s(ntrip, msg) : reqntrip_c(ntrip, msg)))
{
return 0;
}
tracet(2, "waitntrip: state=%d nb=%d\n", ntrip->state, ntrip->nb);
}
if (ntrip->state == 1)
{ /* read response */
p = reinterpret_cast<char *>(ntrip->buff) + ntrip->nb;
if ((n = readtcpcli(ntrip->tcp, reinterpret_cast<unsigned char *>(p), NTRIP_MAXRSP - ntrip->nb - 1, msg)) == 0)
{
tracet(5, "waitntrip: readtcp n=%d\n", n);
return 0;
}
ntrip->nb += n;
ntrip->buff[ntrip->nb] = '\0';
/* wait response */
return ntrip->type == 0 ? rspntrip_s(ntrip, msg) : rspntrip_c(ntrip, msg);
}
return 1;
}
/* open ntrip ----------------------------------------------------------------*/
ntrip_t *openntrip(const char *path, int type, char *msg)
{
ntrip_t *ntrip;
int i;
char addr[256] = "";
char port[256] = "";
char tpath[MAXSTRPATH];
tracet(3, "openntrip: path=%s type=%d\n", path, type);
if (!(ntrip = static_cast<ntrip_t *>(malloc(sizeof(ntrip_t)))))
{
return nullptr;
}
ntrip->state = 0;
ntrip->type = type; /* 0:server, 1:client */
ntrip->nb = 0;
ntrip->url[0] = '\0';
ntrip->mntpnt[0] = ntrip->user[0] = ntrip->passwd[0] = ntrip->str[0] = '\0';
for (i = 0; i < NTRIP_MAXRSP; i++)
{
ntrip->buff[i] = 0;
}
/* decode tcp/ntrip path */
decodetcppath(path, addr, port, ntrip->user, ntrip->passwd, ntrip->mntpnt,
ntrip->str);
/* use default port if no port specified */
if (!*port)
{
std::snprintf(port, sizeof(port), "%d", type ? NTRIP_CLI_PORT : NTRIP_SVR_PORT);
}
std::snprintf(tpath, MAXSTRPATH, "%s:%s", addr, port);
/* ntrip access via proxy server */
if (*proxyaddr)
{
std::string s_aux = "http://"s + std::string(tpath);
int n = s_aux.length();
if (n < 256)
{
for (int k = 0; k < n; k++)
{
ntrip->url[k] = s_aux[k];
}
}
std::strncpy(tpath, proxyaddr, MAXSTRPATH);
}
/* open tcp client stream */
if (!(ntrip->tcp = opentcpcli(tpath, msg)))
{
tracet(1, "openntrip: opentcp error\n");
free(ntrip);
return nullptr;
}
return ntrip;
}
/* close ntrip ---------------------------------------------------------------*/
void closentrip(ntrip_t *ntrip)
{
tracet(3, "closentrip: state=%d\n", ntrip->state);
closetcpcli(ntrip->tcp);
free(ntrip);
}
/* read ntrip ----------------------------------------------------------------*/
int readntrip(ntrip_t *ntrip, unsigned char *buff, int n, char *msg)
{
int nb;
tracet(4, "readntrip: n=%d\n", n);
if (!waitntrip(ntrip, msg))
{
return 0;
}
if (ntrip->nb > 0)
{ /* read response buffer first */
nb = ntrip->nb <= n ? ntrip->nb : n;
memcpy(buff, ntrip->buff + ntrip->nb - nb, nb);
ntrip->nb = 0;
return nb;
}
return readtcpcli(ntrip->tcp, buff, n, msg);
}
/* write ntrip ---------------------------------------------------------------*/
int writentrip(ntrip_t *ntrip, unsigned char *buff, int n, char *msg)
{
tracet(3, "writentrip: n=%d\n", n);
if (!waitntrip(ntrip, msg))
{
return 0;
}
return writetcpcli(ntrip->tcp, buff, n, msg);
}
/* get state ntrip -----------------------------------------------------------*/
int statentrip(ntrip_t *ntrip)
{
return !ntrip ? 0 : (ntrip->state == 0 ? ntrip->tcp->svr.state : ntrip->state);
}
/* decode ftp path ----------------------------------------------------------*/
void decodeftppath(const char *path, char *addr, char *file, char *user,
char *passwd, int *topts)
{
char buff[MAXSTRPATH + 1] = "";
char *p;
char *q;
tracet(4, "decodeftpath: path=%s\n", path);
if (user)
{
*user = '\0';
}
if (passwd)
{
*passwd = '\0';
}
if (topts)
{
topts[0] = 0; /* time offset in path (s) */
topts[1] = 3600; /* download interval (s) */
topts[2] = 0; /* download time offset (s) */
topts[3] = 0; /* retry interval (s) (0: no retry) */
}
if (strlen(path) < MAXSTRPATH)
{
std::strncpy(buff, path, MAXSTRPATH);
buff[MAXSTRPATH - 1] = '\0';
}
if ((p = strchr(buff, '/')))
{
if ((q = strstr(p + 1, "::")))
{
*q = '\0';
if (topts)
{
sscanf(q + 2, "T=%d, %d, %d, %d", topts, topts + 1, topts + 2, topts + 3);
}
}
std::strncpy(file, p + 1, 1024);
file[1023] = '\0';
*p = '\0';
}
else
{
file[0] = '\0';
}
if ((p = strrchr(buff, '@')))
{
*p++ = '\0';
if ((q = strchr(buff, ':')))
{
*q = '\0';
if (passwd)
{
std::strncpy(passwd, q + 1, 256);
passwd[255] = '\0';
}
}
if (user)
{
std::memcpy(user, buff, 256);
user[255] = '\0';
}
}
else
{
p = buff;
}
std::strncpy(addr, p, 1023);
addr[1023] = '\0';
}
/* next download time --------------------------------------------------------*/
gtime_t nextdltime(const int *topts, int stat)
{
gtime_t time;
double tow;
int week;
int tint;
tracet(3, "nextdltime: topts=%d %d %d %d stat=%d\n", topts[0], topts[1],
topts[2], topts[3], stat);
/* current time (gpst) */
time = utc2gpst(timeget());
tow = time2gpst(time, &week);
/* next retry time */
if (stat == 0 && topts[3] > 0)
{
tow = (floor((tow - topts[2]) / topts[3]) + 1.0) * topts[3] + topts[2];
return gpst2time(week, tow);
}
/* next interval time */
tint = topts[1] <= 0 ? 3600 : topts[1];
tow = (floor((tow - topts[2]) / tint) + 1.0) * tint + topts[2];
time = gpst2time(week, tow);
return time;
}
/* ftp thread ----------------------------------------------------------------*/
void *ftpthread(void *arg)
{
auto *ftp = static_cast<ftp_t *>(arg);
tracet(3, "ftpthread:\n");
if (!*localdir)
{
tracet(1, "no local directory\n");
ftp->error = 11;
ftp->state = 3;
return nullptr;
}
/* replace keyword in file path and local path */
auto time = timeadd(utc2gpst(timeget()), ftp->topts[0]);
std::string remote;
reppath(ftp->file, remote, time, "", "");
auto remotePath = fs::path(remote);
auto local = fs::path(localdir);
local /= remotePath.filename();
auto errfile = fs::path(local);
errfile.replace_extension("err");
/* if local file exist, skip download */
auto tmpfile = local;
for (auto ext : {".z", ".gz", ".zip", ".Z", ".GZ", ".ZIP"}) // NOLINT(readability-qualified-auto): auto decoration is less readable
{
if (tmpfile.extension() == ext)
{
tmpfile.replace_extension("");
break;
}
}
if (fs::exists(tmpfile))
{
std::snprintf(ftp->local, 1024, "%s", tmpfile.c_str()); // NOLINT(runtime/printf)
tracet(3, "ftpthread: file exists %s\n", ftp->local);
ftp->state = 2;
return nullptr;
}
std::string env;
/* proxy settings for wget (ref [2]) */
auto proxyopt = std::string();
if (*proxyaddr)
{
auto proto = "ftp"s;
if (ftp->proto) proto = "http"s; // NOLINT(readability-braces-around-statements): adding braces reduces readability
env = "set "s + proto + "_proxy=http://"s + std::string(proxyaddr) + " % ";
proxyopt = "--proxy=on ";
}
/* download command (ref [2]) */
auto cmd_str = std::string();
if (ftp->proto == 0)
{ /* ftp */
auto opt_str = "--ftp-user="s + std::string(ftp->user) + " --ftp-password="s + std::string(ftp->passwd) +
" --glob=off --passive-ftp "s + proxyopt + "s-t 1 -T "s + std::to_string(FTP_TIMEOUT) +
R"( -O ")" + local.native() + R"(")"s;
// TODO: this uses shell syntax; consider escaping paths
cmd_str = env + std::string(FTP_CMD) + " "s + opt_str + " "s +
R"("ftp://)"s + std::string(ftp->addr) + "/"s + remotePath.native() + R"(" 2> ")"s + errfile.native() + "\"\n"s;
}
else
{ /* http */
auto opt_str = proxyopt + " -t 1 -T "s + std::to_string(FTP_TIMEOUT) + " -O \""s + local.native() + "\""s;
cmd_str = env + std::string(FTP_CMD) + " "s + opt_str + " "s +
R"("http://)"s + std::string(ftp->addr) + "/"s + remotePath.native() + R"(" 2> ")"s + errfile.native() + "\"\n";
}
/* execute download command */
errorlib::error_code ec; // prevent exceptions
auto ret = execcmd(cmd_str.c_str());
if ((ret != 0))
{
if (fs::remove(local, ec) == false)
{
trace(1, "Error removing file %s", local.c_str());
}
tracet(1, "execcmd error: cmd=%s ret=%d\n", cmd_str.data(), ret);
ftp->error = ret;
ftp->state = 3;
return nullptr;
}
if (fs::remove(errfile, ec) == false)
{
trace(1, "Error removing file %s", errfile.c_str());
}
/* uncompress downloaded file */
for (auto ext : {".z", ".gz", ".zip", ".Z", ".GZ", ".ZIP"}) // NOLINT(readability-qualified-auto): auto decoration is less readable
{
if (local.extension() == ext)
{
char tmpfile_arg[1024];
ret = rtk_uncompress(local.c_str(), tmpfile_arg);
if (ret != 0) // success
{
if (fs::remove(local, ec) == false)
{
trace(1, "Error removing file %s", local.c_str());
}
local = tmpfile_arg;
}
else
{
tracet(1, "file uncompact error: %s\n", local.c_str());
ftp->error = 12;
ftp->state = 3;
return nullptr;
}
break;
}
}
int ret2 = std::snprintf(ftp->local, 1024, "%s", local.c_str()); // NOLINT(runtime/printf)
if (ret2 < 0 || ret2 >= 1024)
{
tracet(3, "Error reading ftp local\n");
}
ftp->state = 2; /* ftp completed */
tracet(3, "ftpthread: complete cmd=%s\n", cmd_str.data());
return nullptr;
}
/* open ftp ------------------------------------------------------------------*/
ftp_t *openftp(const char *path, int type, char *msg)
{
ftp_t *ftp;
tracet(3, "openftp: path=%s type=%d\n", path, type);
msg[0] = '\0';
if (!(ftp = static_cast<ftp_t *>(malloc(sizeof(ftp_t)))))
{
return nullptr;
}
ftp->state = 0;
ftp->proto = type;
ftp->error = 0;
ftp->thread = pthread_t();
ftp->local[0] = '\0';
/* decode ftp path */
decodeftppath(path, ftp->addr, ftp->file, ftp->user, ftp->passwd, ftp->topts);
/* set first download time */
ftp->tnext = timeadd(timeget(), 10.0);
return ftp;
}
/* close ftp -----------------------------------------------------------------*/
void closeftp(ftp_t *ftp)
{
tracet(3, "closeftp: state=%d\n", ftp->state);
if (ftp->state != 1)
{
free(ftp);
}
}
/* read ftp ------------------------------------------------------------------*/
int readftp(ftp_t *ftp, unsigned char *buff, int n, char *msg)
{
gtime_t time;
unsigned char *p;
unsigned char *q;
tracet(4, "readftp: n=%d\n", n);
time = utc2gpst(timeget());
if (timediff(time, ftp->tnext) < 0.0)
{ /* until download time? */
return 0;
}
if (ftp->state <= 0)
{ /* ftp/http not executed? */
ftp->state = 1;
if (std::snprintf(msg, sizeof(ftp->addr), "%s://%s", ftp->proto ? "http" : "ftp", ftp->addr) < 0)
{
tracet(1, "readftp: ftp address truncation\n");
}
if (pthread_create(&ftp->thread, nullptr, ftpthread, ftp))
{
tracet(1, "readftp: ftp thread create error\n");
ftp->state = 3;
std::strncpy(msg, "ftp thread error", 17);
return 0;
}
}
if (ftp->state <= 1)
{
return 0; /* ftp/http on going? */
}
if (ftp->state == 3)
{ /* ftp error */
if (std::snprintf(msg, sizeof(ftp->addr), "%s error (%d)", ftp->proto ? "http" : "ftp", ftp->error) < 0)
{
tracet(1, "readftp: ftp address truncation\n");
}
/* set next retry time */
ftp->tnext = nextdltime(ftp->topts, 0);
ftp->state = 0;
return 0;
}
/* return local file path if ftp completed */
p = buff;
q = reinterpret_cast<unsigned char *>(ftp->local);
while (*q && static_cast<int>(p - buff) < n)
{
*p++ = *q++;
}
p += std::snprintf(reinterpret_cast<char *>(p), sizeof("\r\n") + 1, "\r\n");
/* set next download time */
ftp->tnext = nextdltime(ftp->topts, 1);
ftp->state = 0;
std::strncpy(msg, "", 1);
return static_cast<int>(p - buff);
}
/* get state ftp -------------------------------------------------------------*/
int stateftp(ftp_t *ftp)
{
return !ftp ? 0 : (ftp->state == 0 ? 2 : (ftp->state <= 2 ? 3 : -1));
}
/* initialize stream environment -----------------------------------------------
* initialize stream environment
* args : none
* return : none
*-----------------------------------------------------------------------------*/
void strinitcom()
{
tracet(3, "strinitcom:\n");
}
/* initialize stream -----------------------------------------------------------
* initialize stream struct
* args : stream_t *stream IO stream
* return : none
*-----------------------------------------------------------------------------*/
void strinit(stream_t *stream)
{
tracet(3, "strinit:\n");
stream->type = 0;
stream->mode = 0;
stream->state = 0;
stream->inb = stream->inr = stream->outb = stream->outr = 0;
stream->tick = stream->tact = stream->inbt = stream->outbt = 0;
initlock(&stream->lock);
stream->port = nullptr;
stream->path[0] = '\0';
stream->msg[0] = '\0';
}
/* open stream -----------------------------------------------------------------
* open stream for read or write
* args : stream_t *stream IO stream
* int type I stream type (STR_SERIAL, STR_FILE, STR_TCPSVR, ...)
* int mode I stream mode (STR_MODE_???)
* char *path I stream path (see below)
* return : status (0:error, 1:ok)
* notes : see reference [1] for NTRIP
* STR_FTP/HTTP needs "wget" in command search paths
*
* stream path ([] options):
*
* STR_SERIAL port[:brate[:bsize[:parity[:stopb[:fctr]]]]]
* port = COM?? (windows), tty??? (linuex, omit /dev/)
* brate = bit rate (bps)
* bsize = bit size (7|8)
* parity= parity (n|o|e)
* stopb = stop bits (1|2)
* fctr = flow control (off|rts)
* STR_FILE file_path[::T][::+start][::xseppd][::S=swap]
* ::T = enable time tag
* start = replay start offset (s)
* speed = replay speed factor
* swap = output swap interval (hr) (0: no swap)
* STR_TCPSVR :port
* STR_TCPCLI address:port
* STR_NTRIPSVR user[:passwd]@address[:port]/moutpoint[:string]
* STR_NTRIPCLI [user[:passwd]]@address[:port][/mountpoint]
* STR_FTP [user[:passwd]]@address/file_path[::T=poff[, tint[, toff, tret]]]]
* STR_HTTP address/file_path[::T=poff[, tint[, toff, tret]]]]
* poff = time offset for path extension (s)
* tint = download interval (s)
* toff = download time offset (s)
* tret = download retry interval (s) (0:no retry)
*-----------------------------------------------------------------------------*/
int stropen(stream_t *stream, int type, int mode, const char *path)
{
tracet(3, "stropen: type=%d mode=%d path=%s\n", type, mode, path);
stream->type = type;
stream->mode = mode;
if (strlen(path) < MAXSTRPATH)
{
std::strncpy(stream->path, path, MAXSTRPATH - 1);
stream->path[MAXSTRPATH - 1] = '\0';
}
stream->inb = stream->inr = stream->outb = stream->outr = 0;
stream->tick = tickget();
stream->inbt = stream->outbt = 0;
stream->msg[0] = '\0';
stream->port = nullptr;
switch (type)
{
case STR_SERIAL:
stream->port = openserial(path, mode, stream->msg);
break;
case STR_FILE:
stream->port = openfile(path, mode, stream->msg);
break;
case STR_TCPSVR:
stream->port = opentcpsvr(path, stream->msg);
break;
case STR_TCPCLI:
stream->port = opentcpcli(path, stream->msg);
break;
case STR_NTRIPSVR:
stream->port = openntrip(path, 0, stream->msg);
break;
case STR_NTRIPCLI:
stream->port = openntrip(path, 1, stream->msg);
break;
case STR_FTP:
stream->port = openftp(path, 0, stream->msg);
break;
case STR_HTTP:
stream->port = openftp(path, 1, stream->msg);
break;
default:
stream->state = 0;
return 1;
}
stream->state = !stream->port ? -1 : 1;
return stream->port != nullptr;
}
/* close stream ----------------------------------------------------------------
* close stream
* args : stream_t *stream IO stream
* return : none
*-----------------------------------------------------------------------------*/
void strclose(stream_t *stream)
{
tracet(3, "strclose: type=%d mode=%d\n", stream->type, stream->mode);
if (stream->port)
{
switch (stream->type)
{
case STR_SERIAL:
closeserial(static_cast<serial_t *>(stream->port));
break;
case STR_FILE:
closefile(static_cast<file_t *>(stream->port));
break;
case STR_TCPSVR:
closetcpsvr(static_cast<tcpsvr_t *>(stream->port));
break;
case STR_TCPCLI:
closetcpcli(static_cast<tcpcli_t *>(stream->port));
break;
case STR_NTRIPSVR:
closentrip(static_cast<ntrip_t *>(stream->port));
break;
case STR_NTRIPCLI:
closentrip(static_cast<ntrip_t *>(stream->port));
break;
case STR_FTP:
closeftp(static_cast<ftp_t *>(stream->port));
break;
case STR_HTTP:
closeftp(static_cast<ftp_t *>(stream->port));
break;
}
}
else
{
trace(2, "no port to close stream: type=%d\n", stream->type);
}
stream->type = 0;
stream->mode = 0;
stream->state = 0;
stream->inr = stream->outr = 0;
stream->path[0] = '\0';
stream->msg[0] = '\0';
stream->port = nullptr;
}
/* sync streams ----------------------------------------------------------------
* sync time for streams
* args : stream_t *stream1 IO stream 1
* stream_t *stream2 IO stream 2
* return : none
* notes : for replay files with time tags
*-----------------------------------------------------------------------------*/
void strsync(stream_t *stream1, stream_t *stream2)
{
file_t *file1;
file_t *file2;
if (stream1->type != STR_FILE || stream2->type != STR_FILE)
{
return;
}
file1 = static_cast<file_t *>(stream1->port);
file2 = static_cast<file_t *>(stream2->port);
if (file1 && file2)
{
syncfile(file1, file2);
}
}
/* lock/unlock stream ----------------------------------------------------------
* lock/unlock stream
* args : stream_t *stream I stream
* return : none
*-----------------------------------------------------------------------------*/
void strlock(stream_t *stream) { rtk_lock(&stream->lock); }
void strunlock(stream_t *stream) { rtk_unlock(&stream->lock); }
/* read stream -----------------------------------------------------------------
* read data from stream (unblocked)
* args : stream_t *stream I stream
* unsigned char *buff O data buffer
* int n I maximum data length
* return : read data length
* notes : if no data, return immediately with no data
*-----------------------------------------------------------------------------*/
int strread(stream_t *stream, unsigned char *buff, int n)
{
unsigned int tick;
char *msg = stream->msg;
int nr;
tracet(4, "strread: n=%d\n", n);
if (!(stream->mode & STR_MODE_R) || !stream->port)
{
return 0;
}
strlock(stream);
switch (stream->type)
{
case STR_SERIAL:
nr = readserial(static_cast<serial_t *>(stream->port), buff, n, msg);
break;
case STR_FILE:
nr = readfile(static_cast<file_t *>(stream->port), buff, n, msg);
break;
case STR_TCPSVR:
nr = readtcpsvr(static_cast<tcpsvr_t *>(stream->port), buff, n, msg);
break;
case STR_TCPCLI:
nr = readtcpcli(static_cast<tcpcli_t *>(stream->port), buff, n, msg);
break;
case STR_NTRIPCLI:
nr = readntrip(static_cast<ntrip_t *>(stream->port), buff, n, msg);
break;
case STR_FTP:
nr = readftp(static_cast<ftp_t *>(stream->port), buff, n, msg);
break;
case STR_HTTP:
nr = readftp(static_cast<ftp_t *>(stream->port), buff, n, msg);
break;
default:
strunlock(stream);
return 0;
}
stream->inb += nr;
tick = tickget();
if (nr > 0)
{
stream->tact = tick;
}
if (static_cast<int>(tick - stream->tick) >= tirate)
{
stream->inr = (stream->inb - stream->inbt) * 8000 / (tick - stream->tick);
stream->tick = tick;
stream->inbt = stream->inb;
}
strunlock(stream);
return nr;
}
/* write stream ----------------------------------------------------------------
* write data to stream (unblocked)
* args : stream_t *stream I stream
* unsigned char *buff I data buffer
* int n I data length
* return : status (0:error, 1:ok)
* notes : write data to buffer and return immediately
*-----------------------------------------------------------------------------*/
int strwrite(stream_t *stream, unsigned char *buff, int n)
{
unsigned int tick;
char *msg = stream->msg;
int ns;
tracet(3, "strwrite: n=%d\n", n);
if (!(stream->mode & STR_MODE_W) || !stream->port)
{
return 0;
}
strlock(stream);
switch (stream->type)
{
case STR_SERIAL:
ns = writeserial(static_cast<serial_t *>(stream->port), buff, n, msg);
break;
case STR_FILE:
ns = writefile(static_cast<file_t *>(stream->port), buff, n, msg);
break;
case STR_TCPSVR:
ns = writetcpsvr(static_cast<tcpsvr_t *>(stream->port), buff, n, msg);
break;
case STR_TCPCLI:
ns = writetcpcli(static_cast<tcpcli_t *>(stream->port), buff, n, msg);
break;
case STR_NTRIPCLI:
case STR_NTRIPSVR:
ns = writentrip(static_cast<ntrip_t *>(stream->port), buff, n, msg);
break;
case STR_FTP:
case STR_HTTP:
default:
strunlock(stream);
return 0;
}
stream->outb += ns;
tick = tickget();
if (ns > 0)
{
stream->tact = tick;
}
if (static_cast<int>(tick - stream->tick) > tirate)
{
stream->outr = (stream->outb - stream->outbt) * 8000 / (tick - stream->tick);
stream->tick = tick;
stream->outbt = stream->outb;
}
strunlock(stream);
return ns;
}
/* get stream status -----------------------------------------------------------
* get stream status
* args : stream_t *stream I stream
* char *msg IO status message (NULL: no output)
* return : status (-1:error, 0:close, 1:wait, 2:connect, 3:active)
*-----------------------------------------------------------------------------*/
int strstat(stream_t *stream, char *msg)
{
int state;
tracet(4, "strstat:\n");
strlock(stream);
if (msg)
{
// strncpy(msg, stream->msg, MAXSTRMSG - 1); This line triggers a warning. Replaced by:
std::string aux_s(stream->msg);
aux_s.resize(MAXSTRMSG - 1, '0');
for (int i = 0; i < MAXSTRMSG - 1; i++)
{
msg[i] = aux_s[i];
}
msg[MAXSTRMSG - 1] = '\0';
}
if (!stream->port)
{
strunlock(stream);
return stream->state;
}
switch (stream->type)
{
case STR_SERIAL:
state = stateserial(static_cast<serial_t *>(stream->port));
break;
case STR_FILE:
state = statefile(static_cast<file_t *>(stream->port));
break;
case STR_TCPSVR:
state = statetcpsvr(static_cast<tcpsvr_t *>(stream->port));
break;
case STR_TCPCLI:
state = statetcpcli(static_cast<tcpcli_t *>(stream->port));
break;
case STR_NTRIPSVR:
case STR_NTRIPCLI:
state = statentrip(static_cast<ntrip_t *>(stream->port));
break;
case STR_FTP:
state = stateftp(static_cast<ftp_t *>(stream->port));
break;
case STR_HTTP:
state = stateftp(static_cast<ftp_t *>(stream->port));
break;
default:
strunlock(stream);
return 0;
}
if (state == 2 && static_cast<int>(tickget() - stream->tact) <= TINTACT)
{
state = 3;
}
strunlock(stream);
return state;
}
/* get stream statistics summary -----------------------------------------------
* get stream statistics summary
* args : stream_t *stream I stream
* int *inb IO bytes of input (NULL: no output)
* int *inr IO bps of input (NULL: no output)
* int *outb IO bytes of output (NULL: no output)
* int *outr IO bps of output (NULL: no output)
* return : none
*-----------------------------------------------------------------------------*/
void strsum(stream_t *stream, int *inb, int *inr, int *outb, int *outr)
{
tracet(4, "strsum:\n");
strlock(stream);
if (inb)
{
*inb = stream->inb;
}
if (inr)
{
*inr = stream->inr;
}
if (outb)
{
*outb = stream->outb;
}
if (outr)
{
*outr = stream->outr;
}
strunlock(stream);
}
/* set global stream options ---------------------------------------------------
* set global stream options
* args : int *opt I options
* opt[0]= inactive timeout (ms) (0: no timeout)
* opt[1]= interval to reconnect (ms)
* opt[2]= averaging time of data rate (ms)
* opt[3]= receive/send buffer size (bytes);
* opt[4]= file swap margin (s)
* opt[5]= reserved
* opt[6]= reserved
* opt[7]= reserved
* return : none
*-----------------------------------------------------------------------------*/
void strsetopt(const int *opt)
{
tracet(3, "strsetopt: opt=%d %d %d %d %d %d %d %d\n", opt[0], opt[1], opt[2],
opt[3], opt[4], opt[5], opt[6], opt[7]);
toinact = 0 < opt[0] && opt[0] < 1000 ? 1000 : opt[0]; /* >=1s */
ticonnect = opt[1] < 1000 ? 1000 : opt[1]; /* >=1s */
tirate = opt[2] < 100 ? 100 : opt[2]; /* >=0.1s */
buffsize = opt[3] < 4096 ? 4096 : opt[3]; /* >=4096byte */
fswapmargin = opt[4] < 0 ? 0 : opt[4];
}
/* set timeout time ------------------------------------------------------------
* set timeout time
* args : stream_t *stream I stream (STR_TCPCLI, STR_NTRIPCLI, STR_NTRIPSVR)
* int inactive_timeout I inactive timeout (ms) (0: no timeout)
* int tirecon I reconnect interval (ms) (0: no reconnect)
* return : none
*-----------------------------------------------------------------------------*/
void strsettimeout(stream_t *stream, int inactive_timeout, int tirecon)
{
tcpcli_t *tcpcli;
tracet(3, "strsettimeout: toinact=%d tirecon=%d\n", inactive_timeout, tirecon);
if (stream->type == STR_TCPCLI)
{
tcpcli = static_cast<tcpcli_t *>(stream->port);
}
else if (stream->type == STR_NTRIPCLI || stream->type == STR_NTRIPSVR)
{
tcpcli = (static_cast<ntrip_t *>(stream->port))->tcp;
}
else
{
return;
}
tcpcli->toinact = inactive_timeout;
tcpcli->tirecon = tirecon;
}
/* set local directory ---------------------------------------------------------
* set local directory path for ftp/http download
* args : char *dir I directory for download files
* return : none
*-----------------------------------------------------------------------------*/
void strsetdir(const char *dir)
{
tracet(3, "strsetdir: dir=%s\n", dir);
if (strlen(dir) < 1024)
{
std::strncpy(localdir, dir, 1024);
localdir[1023] = '\0';
}
}
/* set http/ntrip proxy address ------------------------------------------------
* set http/ntrip proxy address
* args : char *addr I http/ntrip proxy address <address>:<port>
* return : none
*-----------------------------------------------------------------------------*/
void strsetproxy(const char *addr)
{
tracet(3, "strsetproxy: addr=%s\n", addr);
if (strlen(addr) < 256)
{
std::strncpy(proxyaddr, addr, 256);
proxyaddr[255] = '\0';
}
}
/* get stream time -------------------------------------------------------------
* get stream time
* args : stream_t *stream I stream
* return : current time or replay time for playback file
*-----------------------------------------------------------------------------*/
gtime_t strgettime(stream_t *stream)
{
file_t *file;
if (stream->type == STR_FILE && (stream->mode & STR_MODE_R) &&
(file = static_cast<file_t *>(stream->port)))
{
return timeadd(file->time, file->start); /* replay start time */
}
return utc2gpst(timeget());
}
/* send nmea request -----------------------------------------------------------
* send nmea gpgga message to stream
* args : stream_t *stream I stream
* double *pos I position {x, y, z} (ecef) (m)
* return : none
*-----------------------------------------------------------------------------*/
void strsendnmea(stream_t *stream, const double *pos)
{
sol_t sol = {{0, 0}, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0}, '0', '0', '0', 0, 0, 0};
unsigned char buff[1024];
int i;
int n;
tracet(3, "strsendnmea: pos=%.3f %.3f %.3f\n", pos[0], pos[1], pos[2]);
sol.stat = SOLQ_SINGLE;
sol.time = utc2gpst(timeget());
for (i = 0; i < 3; i++)
{
sol.rr[i] = pos[i];
}
n = outnmea_gga(buff, &sol);
strwrite(stream, buff, n);
}
/* generate general hex message ----------------------------------------------*/
int gen_hex(const char *msg, unsigned char *buff)
{
unsigned char *q = buff;
char mbuff[1024] = "";
char *args[256];
char *p;
unsigned int byte;
int i;
int narg = 0;
trace(4, "gen_hex: msg=%s\n", msg);
strncpy(mbuff, msg, 1023);
mbuff[1022] = '\0';
for (p = strtok(mbuff, " "); p && narg < 256; p = strtok(nullptr, " "))
{
args[narg++] = p;
}
for (i = 0; i < narg; i++)
{
if (sscanf(args[i], "%x", &byte))
{
*q++ = static_cast<unsigned char>(byte);
}
}
return static_cast<int>(q - buff);
}
/* send receiver command -------------------------------------------------------
* send receiver commands to stream
* args : stream_t *stream I stream
* char *cmd I receiver command strings
* return : none
*-----------------------------------------------------------------------------*/
void strsendcmd(stream_t *str, const char *cmd)
{
unsigned char buff[1024];
const char *p = cmd;
const char *q;
char msg[1024];
char cmdend[] = "\r\n";
int n;
int m;
int ms;
tracet(3, "strsendcmd: cmd=%s\n", cmd);
for (;;)
{
for (q = p;; q++)
{
if (*q == '\r' || *q == '\n' || *q == '\0')
{
break;
}
}
n = static_cast<int>(q - p);
strncpy(msg, p, n);
msg[n] = '\0';
if (!*msg || *msg == '#')
{ /* null or comment */
}
else if (*msg == '!')
{ /* binary escape */
if (!strncmp(msg + 1, "WAIT", 4))
{ /* wait */
if (sscanf(msg + 5, "%d", &ms) < 1)
{
ms = 100;
}
if (ms > 3000)
{
ms = 3000; /* max 3 s */
}
sleepms(ms);
}
// else if (!strncmp(msg+1, "UBX", 3))
// { /* ublox */
// if ((m=gen_ubx(msg+4, buff))>0) strwrite(str, buff, m);
// }
// else if (!strncmp(msg+1, "STQ", 3))
// { /* skytraq */
// if ((m=gen_stq(msg+4, buff))>0) strwrite(str, buff, m);
// }
// else if (!strncmp(msg+1, "NVS", 3))
// { /* nvs */
// if ((m=gen_nvs(msg+4, buff))>0) strwrite(str, buff, m);
// }
// else if (!strncmp(msg+1, "LEXR", 4))
// { /* lex receiver */
// if ((m=gen_lexr(msg+5, buff))>0) strwrite(str, buff, m);
// }
else if (!strncmp(msg + 1, "HEX", 3))
{ /* general hex message */
if ((m = gen_hex(msg + 4, buff)) > 0)
{
strwrite(str, buff, m);
}
}
}
else
{
strwrite(str, reinterpret_cast<unsigned char *>(msg), n);
strwrite(str, reinterpret_cast<unsigned char *>(cmdend), 2);
}
if (*q == '\0')
{
break;
}
p = q + 1;
}
}
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