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main.c
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main.c
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/*
This file is part of telegram-cli.
Telegram-cli 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.
Telegram-cli 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 telegram-cli. If not, see <http://www.gnu.org/licenses/>.
Copyright Vitaly Valtman 2013-2015
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef USE_PYTHON
# include "python-tg.h"
#endif
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <pwd.h>
#include <termios.h>
#include <unistd.h>
#include <assert.h>
#ifdef __FreeBSD__
#include <sys/socket.h>
#include <netinet/in.h>
#endif
#include <readline/readline.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <time.h>
#include <fcntl.h>
#ifdef HAVE_EXECINFO_H
#include <execinfo.h>
#endif
#include <signal.h>
#ifdef HAVE_LIBCONFIG
#include <libconfig.h>
#endif
#include <grp.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include "telegram.h"
#include "loop.h"
#include "interface.h"
#include <tgl/tools.h>
#include <getopt.h>
#include <tgl/mtproto-key.h>
#ifdef USE_LUA
# include "lua-tg.h"
#endif
#include <tgl/tgl.h>
#define PROGNAME "telegram-cli"
#define VERSION "0.07"
#define CONFIG_DIRECTORY "." PROG_NAME
#define CONFIG_FILE "config"
#define AUTH_KEY_FILE "auth"
#define STATE_FILE "state"
#define SECRET_CHAT_FILE "secret"
#define DOWNLOADS_DIRECTORY "downloads"
#define BINLOG_FILE "binlog"
#define CONFIG_DIRECTORY_MODE 0700
#define DEFAULT_CONFIG_CONTENTS \
"# This is an empty config file\n" \
"# Feel free to put something here\n"
int bot_mode;
int verbosity;
int msg_num_mode;
char *default_username;
char *config_filename;
char *prefix;
char *auth_file_name;
char *state_file_name;
char *secret_chat_file_name;
char *downloads_directory;
char *config_directory;
char *config_directory_force;
char *binlog_file_name;
char *lua_file;
char *python_file;
int binlog_enabled;
extern int log_level;
int sync_from_start;
int allow_weak_random;
int disable_colors;
int readline_disabled;
int disable_output;
int reset_authorization;
int port;
int use_ids;
int ipv6_enabled;
char *start_command;
int disable_link_preview;
int enable_json;
int alert_sound;
int auto_mark_read;
int exit_code;
int permanent_msg_id_mode;
int permanent_peer_id_mode;
char *home_directory;
struct tgl_state *TLS;
void set_default_username (const char *s) {
if (default_username) {
tfree_str (default_username);
}
default_username = tstrdup (s);
}
/* {{{ TERMINAL */
static struct termios term_in, term_out;
static int term_set_in;
static int term_set_out;
void get_terminal_attributes (void) {
if (tcgetattr (STDIN_FILENO, &term_in) < 0) {
} else {
term_set_in = 1;
}
if (tcgetattr (STDOUT_FILENO, &term_out) < 0) {
} else {
term_set_out = 1;
}
}
void set_terminal_attributes (void) {
if (term_set_in) {
if (tcsetattr (STDIN_FILENO, 0, &term_in) < 0) {
perror ("tcsetattr()");
}
}
if (term_set_out) {
if (tcsetattr (STDOUT_FILENO, 0, &term_out) < 0) {
perror ("tcsetattr()");
}
}
}
/* }}} */
int str_empty (char *str) {
return ((str == NULL) || (strlen(str) < 1));
}
char *get_home_directory (void) {
if (home_directory) { return home_directory; }
home_directory = getenv("TELEGRAM_HOME");
if (!str_empty (home_directory)) { return home_directory = tstrdup (home_directory); }
home_directory = getenv("HOME");
if (!str_empty (home_directory)) { return home_directory = tstrdup (home_directory); }
struct passwd *current_passwd;
uid_t user_id;
setpwent ();
user_id = getuid ();
while ((current_passwd = getpwent ())) {
if (current_passwd->pw_uid == user_id) {
home_directory = tstrdup (current_passwd->pw_dir);
break;
}
}
endpwent ();
if (str_empty (home_directory)) { home_directory = tstrdup ("."); }
return home_directory;
}
char *get_config_directory (void) {
char *config_directory;
config_directory = getenv("TELEGRAM_CONFIG_DIR");
if (!str_empty (config_directory)) { return tstrdup (config_directory); }
// XDG: http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
config_directory = getenv("XDG_CONFIG_HOME");
if (!str_empty (config_directory)) {
tasprintf (&config_directory, "%s/" PROG_NAME, config_directory);
// :TODO: someone check whether it could be required to pass tasprintf
// a tstrdup()ed config_directory instead; works for me without.
// should work b/c this scope's lifespan encompasses tasprintf()
return config_directory;
}
tasprintf (&config_directory, "%s/" CONFIG_DIRECTORY, get_home_directory ());
return config_directory;
}
char *get_config_filename (void) {
return config_filename;
}
char *get_auth_key_filename (void) {
return auth_file_name;
}
char *get_state_filename (void) {
return state_file_name;
}
char *get_secret_chat_filename (void) {
return secret_chat_file_name;
}
char *get_downloads_directory (void) {
return downloads_directory;
}
char *get_binlog_file_name (void) {
return binlog_file_name;
}
char *make_full_path (char *s) {
if (*s != '/') {
char *t = s;
tasprintf (&s, "%s/%s", get_home_directory (), s);
tfree_str (t);
}
return s;
}
void check_type_sizes (void) {
if (sizeof (int) != 4u) {
logprintf ("sizeof (int) isn't equal 4.\n");
exit (1);
}
if (sizeof (char) != 1u) {
logprintf ("sizeof (char) isn't equal 1.\n");
exit (1);
}
}
void running_for_first_time (void) {
check_type_sizes ();
if (!str_empty (config_filename)) {
return; // Do not create custom config file
}
if (str_empty (config_directory)) {
config_directory = get_config_directory ();
}
tasprintf (&config_filename, "%s/%s", config_directory, CONFIG_FILE);
config_filename = make_full_path (config_filename);
if (!disable_output) {
printf ("I: config dir=[%s]\n", config_directory);
}
// printf ("I: config file=[%s]\n", config_filename);
int config_file_fd;
//char *config_directory = get_config_directory ();
//char *downloads_directory = get_downloads_directory ();
if (!mkdir (config_directory, CONFIG_DIRECTORY_MODE)) {
if (!disable_output) {
printf ("[%s] created\n", config_directory);
}
}
tfree_str (config_directory);
config_directory = NULL;
// see if config file is there
if (access (config_filename, R_OK) != 0) {
// config file missing, so touch it
config_file_fd = open (config_filename, O_CREAT | O_RDWR, 0600);
if (config_file_fd == -1) {
perror ("open[config_file]");
printf ("I: config_file=[%s]\n", config_filename);
exit (EXIT_FAILURE);
}
if (write (config_file_fd, DEFAULT_CONFIG_CONTENTS, strlen (DEFAULT_CONFIG_CONTENTS)) <= 0) {
perror ("write[config_file]");
exit (EXIT_FAILURE);
}
close (config_file_fd);
}
}
#ifdef HAVE_LIBCONFIG
void parse_config_val (config_t *conf, char **s, char *param_name, const char *default_name, const char *path) {
static char buf[1000];
int l = 0;
if (prefix) {
l = strlen (prefix);
memcpy (buf, prefix, l);
buf[l ++] = '.';
}
*s = 0;
const char *r = 0;
strcpy (buf + l, param_name);
config_lookup_string (conf, buf, &r);
if (r) {
if (path && *r != '/') {
tasprintf (s, "%s/%s", path, r);
} else {
*s = tstrdup (r);
}
} else {
if (path && default_name) {
tasprintf (s, "%s/%s", path, default_name);
} else {
*s = default_name ? tstrdup (default_name) : 0;
}
}
}
void parse_config (void) {
//config_filename = make_full_path (config_filename);
config_t conf;
config_init (&conf);
if (config_read_file (&conf, config_filename) != CONFIG_TRUE) {
fprintf (stderr, "Can not read config '%s': error '%s' on the line %d\n", config_filename, config_error_text (&conf), config_error_line (&conf));
exit (2);
}
if (!prefix) {
config_lookup_string (&conf, "default_profile", (void *)&prefix);
}
static char buf[1000];
int l = 0;
if (prefix) {
l = strlen (prefix);
memcpy (buf, prefix, l);
buf[l ++] = '.';
}
int test_mode = 0;
strcpy (buf + l, "test");
config_lookup_bool (&conf, buf, &test_mode);
if (test_mode) {
tgl_set_test_mode (TLS);
}
strcpy (buf + l, "log_level");
long long t = log_level;
config_lookup_int (&conf, buf, (void *)&t);
log_level = t;
if (!msg_num_mode) {
strcpy (buf + l, "msg_num");
config_lookup_bool (&conf, buf, &msg_num_mode);
}
if( config_directory_force ){
config_directory = config_directory_force;
if( !disable_output ){
printf( "Config directory force: [%s]\n", config_directory_force );
}
}else{
parse_config_val (&conf, &config_directory, "config_directory", CONFIG_DIRECTORY, 0);
config_directory = make_full_path (config_directory);
}
parse_config_val (&conf, &auth_file_name, "auth_file", AUTH_KEY_FILE, config_directory);
parse_config_val (&conf, &downloads_directory, "downloads", DOWNLOADS_DIRECTORY, config_directory);
if (!lua_file) {
parse_config_val (&conf, &lua_file, "lua_script", 0, config_directory);
}
if (!python_file) {
parse_config_val (&conf, &python_file, "python_script", 0, config_directory);
}
#if 0
strcpy (buf + l, "binlog_enabled");
config_lookup_bool (&conf, buf, &binlog_enabled);
#else
binlog_enabled = 0;
#endif
int pfs_enabled = 0;
strcpy (buf + l, "pfs_enabled");
config_lookup_bool (&conf, buf, &pfs_enabled);
if (pfs_enabled) {
tgl_enable_pfs (TLS);
}
if (binlog_enabled) {
parse_config_val (&conf, &binlog_file_name, "binlog", BINLOG_FILE, config_directory);
tgl_set_binlog_mode (TLS, 1);
tgl_set_binlog_path (TLS, binlog_file_name);
} else {
tgl_set_binlog_mode (TLS, 0);
parse_config_val (&conf, &state_file_name, "state_file", STATE_FILE, config_directory);
parse_config_val (&conf, &secret_chat_file_name, "secret", SECRET_CHAT_FILE, config_directory);
//tgl_set_auth_file_path (auth_file_name);
}
tgl_set_download_directory (TLS, downloads_directory);
if (!mkdir (config_directory, CONFIG_DIRECTORY_MODE)) {
if (!disable_output) {
printf ("[%s] created\n", config_directory);
}
}
if (!mkdir (downloads_directory, CONFIG_DIRECTORY_MODE)) {
if (!disable_output) {
printf ("[%s] created\n", downloads_directory);
}
}
tfree_str (config_directory);
config_directory = NULL;
config_destroy (&conf);
}
#else
void parse_config (void) {
if (!disable_output) {
printf ("libconfig not enabled\n");
}
tasprintf (&downloads_directory, "%s/%s/%s", get_home_directory (), CONFIG_DIRECTORY, DOWNLOADS_DIRECTORY);
if (binlog_enabled) {
tasprintf (&binlog_file_name, "%s/%s/%s", get_home_directory (), CONFIG_DIRECTORY, BINLOG_FILE);
tgl_set_binlog_mode (TLS, 1);
tgl_set_binlog_path (TLS, binlog_file_name);
} else {
tgl_set_binlog_mode (TLS, 0);
//tgl_set_auth_file_path (auth_file_name;
tasprintf (&auth_file_name, "%s/%s/%s", get_home_directory (), CONFIG_DIRECTORY, AUTH_KEY_FILE);
tasprintf (&state_file_name, "%s/%s/%s", get_home_directory (), CONFIG_DIRECTORY, STATE_FILE);
tasprintf (&secret_chat_file_name, "%s/%s/%s", get_home_directory (), CONFIG_DIRECTORY, SECRET_CHAT_FILE);
}
tgl_set_download_directory (TLS, downloads_directory);
if (!mkdir (downloads_directory, CONFIG_DIRECTORY_MODE)) {
if (!disable_output) {
printf ("[%s] created\n", downloads_directory);
}
}
}
#endif
void inner_main (void) {
loop ();
}
void usage (void) {
printf ("%s Usage\n", PROGNAME);
printf (" --phone/-u specify username (would not be asked during authorization)\n");
printf (" --rsa-key/-k specify location of public key (possible multiple entries)\n");
printf (" --verbosity/-v increase verbosity (0-ERROR 1-WARNIN 2-NOTICE 3+-DEBUG-levels)\n");
printf (" --enable-msg-id/-N message num mode\n");
#ifdef HAVE_LIBCONFIG
printf (" --config/-c config file name\n");
printf (" --force-config-dir/-x set force config dir instead of profile\n");
printf (" --profile/-p use specified profile\n");
#else
#if 0
printf (" --enable-binlog/-B enable binlog\n");
#endif
#endif
printf (" --log-level/-l log level\n");
printf (" --sync-from-start/-f during authorization fetch all messages since registration\n");
printf (" --disable-auto-accept/-E disable auto accept of encrypted chats\n");
#ifdef USE_LUA
printf (" --lua-script/-s lua script file\n");
#endif
printf (" --wait-dialog-list/-W send dialog_list query and wait for answer before reading input\n");
printf (" --disable-colors/-C disable color output\n");
printf (" --disable-readline/-R disable readline\n");
printf (" --alert/-A enable bell notifications\n");
printf (" --auto-mark-read/-M mark read conversation after sending a message\n");
printf (" --daemonize/-d daemon mode\n");
printf (" --logname/-L <log-name> log file name\n");
printf (" --username/-U <user-name> change uid after start\n");
printf (" --groupname/-G <group-name> change gid after start\n");
printf (" --disable-output/-D disable output\n");
printf (" --tcp-port/-P <port> port to listen for input commands\n");
printf (" --unix-socket/-S <socket-name> unix socket to create\n");
printf (" --exec/-e <command> make a single command end then exit safely\n");
printf (" --disable-names/-I use user and chat IDs in updates instead of names\n");
printf (" --enable-ipv6/-6 use ipv6 (may be unstable)\n");
printf (" --help/-h prints this help\n");
printf (" --accept-any-tcp accepts tcp connections from any src (only loopback by default)\n");
printf (" --disable-link-preview disables server-side previews to links\n");
printf (" --bot/-b bot mode\n");
#ifdef USE_JSON
printf (" --json prints answers and values in json format\n");
#endif
#ifdef USE_PYTHON
printf (" --python-script/-Z <script-name> python script file\n");
#endif
printf (" --permanent-msg-ids use permanent msg ids\n");
printf (" --permanent-peer-ids use permanent peer ids\n");
exit (1);
}
//extern char *rsa_public_key_name;
//extern int default_dc_num;
char *log_net_file;
FILE *log_net_f;
int register_mode;
int disable_auto_accept;
int wait_dialog_list;
char *logname;
int daemonize=0;
void reopen_logs (void) {
int fd;
fflush (stdout);
fflush (stderr);
if ((fd = open ("/dev/null", O_RDWR, 0)) != -1) {
dup2 (fd, 0);
dup2 (fd, 1);
dup2 (fd, 2);
if (fd > 2) {
close (fd);
}
}
if (logname && (fd = open (logname, O_WRONLY|O_APPEND|O_CREAT, 0640)) != -1) {
dup2 (fd, 1);
dup2 (fd, 2);
if (fd > 2) {
close (fd);
}
}
}
static void sigusr1_handler (const int sig) {
fprintf(stderr, "got SIGUSR1, rotate logs.\n");
reopen_logs ();
signal (SIGUSR1, sigusr1_handler);
}
static void sighup_handler (const int sig) {
fprintf(stderr, "got SIGHUP.\n");
signal (SIGHUP, sighup_handler);
}
char *set_user_name;
char *set_group_name;
int accept_any_tcp;
char *bot_hash;
int change_user_group () {
char *username = set_user_name;
char *groupname = set_group_name;
struct passwd *pw;
/* lose root privileges if we have them */
if (getuid() == 0 || geteuid() == 0) {
if (username == 0 || *username == '\0') {
username = "telegramd";
}
if ((pw = getpwnam (username)) == 0) {
fprintf (stderr, "change_user_group: can't find the user %s to switch to\n", username);
return -1;
}
gid_t gid = pw->pw_gid;
if (setgroups (1, &gid) < 0) {
fprintf (stderr, "change_user_group: failed to clear supplementary groups list: %m\n");
return -1;
}
if (groupname) {
struct group *g = getgrnam (groupname);
if (g == NULL) {
fprintf (stderr, "change_user_group: can't find the group %s to switch to\n", groupname);
return -1;
}
gid = g->gr_gid;
}
if (setgid (gid) < 0) {
fprintf (stderr, "change_user_group: setgid (%d) failed. %m\n", (int) gid);
return -1;
}
if (setuid (pw->pw_uid) < 0) {
fprintf (stderr, "change_user_group: failed to assume identity of user %s\n", username);
return -1;
} else {
pw = getpwuid(getuid());
setenv("USER", pw->pw_name, 1);
setenv("HOME", pw->pw_dir, 1);
setenv("SHELL", pw->pw_shell, 1);
}
}
return 0;
}
char *unix_socket;
void args_parse (int argc, char **argv) {
TLS = tgl_state_alloc ();
static struct option long_options[] = {
{"debug-allocator", no_argument, 0, 1000 },
{"phone", required_argument, 0, 'u'},
{"rsa-key", required_argument, 0, 'k'},
{"verbosity", no_argument, 0, 'v'},
{"enable-msg-id", no_argument, 0, 'N'},
#ifdef HAVE_LIBCONFIG
{"config", required_argument, 0, 'c'},
{"force-config-dir", required_argument, 0, 'X'},
{"profile", required_argument, 0, 'p'},
#else
#if 0
{"enable-binlog", no_argument, 0, 'B'},
#endif
#endif
{"log-level", required_argument, 0, 'l'},
{"sync-from-start", no_argument, 0, 'f'},
{"disable-auto-accept", no_argument, 0, 'E'},
{"allow-weak-random", no_argument, 0, 'w'},
#ifdef USE_LUA
{"lua-script", required_argument, 0, 's'},
#endif
{"wait-dialog-list", no_argument, 0, 'W'},
{"disable-colors", no_argument, 0, 'C'},
{"disable-readline", no_argument, 0, 'R'},
{"alert", no_argument, 0, 'A'},
{"auto-mark-read", no_argument, 0, 'M'},
{"daemonize", no_argument, 0, 'd'},
{"logname", required_argument, 0, 'L'},
{"username", required_argument, 0, 'U'},
{"groupname", required_argument, 0, 'G'},
{"disable-output", no_argument, 0, 'D'},
{"reset-authorization", no_argument, 0, 'q'},
{"tcp-port", required_argument, 0, 'P'},
{"unix-socket", required_argument, 0, 'S'},
{"exec", required_argument, 0, 'e'},
{"disable-names", no_argument, 0, 'I'},
{"enable-ipv6", no_argument, 0, '6'},
{"bot", optional_argument, 0, 'b'},
{"help", no_argument, 0, 'h'},
{"accept-any-tcp", no_argument, 0, 1001},
{"disable-link-preview", no_argument, 0, 1002},
{"json", no_argument, 0, 1003},
{"python-script", required_argument, 0, 'Z'},
{"permanent-msg-ids", no_argument, 0, 1004},
{"permanent-peer-ids", no_argument, 0, 1005},
{0, 0, 0, 0 }
};
int opt = 0;
while ((opt = getopt_long (argc, argv, "u:hk:vNl:fEwWCRAMdL:DU:G:qP:X:S:e:I6b"
#ifdef HAVE_LIBCONFIG
"c:p:"
#else
#if 0
"B"
#endif
#endif
#ifdef USE_LUA
"s:"
#endif
#ifdef USE_PYTHON
"Z:"
#endif
, long_options, NULL
)) != -1) {
switch (opt) {
case 'b':
bot_mode ++;
if (optarg) {
bot_hash = optarg;
}
break;
case 1000:
tgl_allocator = &tgl_allocator_debug;
break;
case 1001:
accept_any_tcp = 1;
break;
case 'u':
set_default_username (optarg);
break;
case 'k':
//rsa_public_key_name = tstrdup (optarg);
tgl_set_rsa_key (TLS, optarg);
break;
case 'v':
tgl_incr_verbosity (TLS);
verbosity ++;
break;
case 'N':
msg_num_mode ++;
break;
#ifdef HAVE_LIBCONFIG
case 'c':
config_filename = tstrdup (optarg);
break;
case 'X':
config_directory_force = tstrdup (optarg);
break;
case 'p':
prefix = optarg;
assert (strlen (prefix) <= 100);
break;
#else
#if 0
case 'B':
binlog_enabled = 1;
break;
#endif
#endif
case 'l':
log_level = atoi (optarg);
break;
case 'f':
sync_from_start = 1;
break;
case 'E':
disable_auto_accept = 1;
break;
case 'w':
allow_weak_random = 1;
break;
#ifdef USE_LUA
case 's':
lua_file = strdup (optarg);
break;
#endif
case 'W':
wait_dialog_list = 1;
break;
#ifdef USE_PYTHON
case 'Z':
python_file = strdup (optarg);
break;
#endif
case 'C':
disable_colors ++;
break;
case 'R':
readline_disabled ++;
break;
case 'A':
alert_sound = 1;
break;
case 'M':
auto_mark_read = 1;
break;
case 'd':
daemonize ++;
break;
case 'L':
logname = optarg;
break;
case 'U':
set_user_name = optarg;
break;
case 'G':
set_group_name = optarg;
break;
case 'D':
disable_output ++;
break;
case 'q':
reset_authorization ++;
break;
case 'P':
port = atoi (optarg);
break;
case 'S':
unix_socket = optarg;
break;
case 'e':
start_command = optarg;
break;
case 'I':
use_ids ++;
break;
case '6':
ipv6_enabled = 1;
break;
case 1002:
disable_link_preview = 2;
break;
case 1003:
enable_json = 1;
break;
case 1004:
permanent_msg_id_mode = 1;
break;
case 1005:
permanent_peer_id_mode = 1;
break;
case 'h':
default:
usage ();
break;
}
}
}
#ifdef HAVE_EXECINFO_H
void print_backtrace (void) {
void *buffer[255];
const int calls = backtrace (buffer, sizeof (buffer) / sizeof (void *));
backtrace_symbols_fd (buffer, calls, 1);
}
#else
void print_backtrace (void) {
if (write (1, "No libexec. Backtrace disabled\n", 32) < 0) {
// Sad thing
}
}
#endif
int sfd;
int usfd;
void termination_signal_handler (int signum) {
if (!readline_disabled) {
rl_free_line_state ();
rl_cleanup_after_signal ();
}
if (write (1, "SIGNAL received\n", 18) < 0) {
// Sad thing
}
if (unix_socket) {
unlink (unix_socket);
}
if (usfd > 0) {
close (usfd);
}
if (sfd > 0) {
close (sfd);
}
print_backtrace ();
exit (EXIT_FAILURE);
}
volatile int sigterm_cnt;
void sig_term_handler (int signum __attribute__ ((unused))) {
signal (signum, termination_signal_handler);
//set_terminal_attributes ();
if (write (1, "SIGTERM/SIGINT received\n", 25) < 0) {
// Sad thing
}
//if (TLS && TLS->ev_base) {
// event_base_loopbreak (TLS->ev_base);
//}
sigterm_cnt ++;
}
void do_halt (int error) {
int retval;
if (daemonize) {
return;
}
if (!readline_disabled) {
rl_free_line_state ();
rl_cleanup_after_signal ();
}
if (write (1, "halt\n", 5) < 0) {
// Sad thing
}
if (unix_socket) {
unlink (unix_socket);
}
if (usfd > 0) {
close (usfd);
}
if (sfd > 0) {
close (sfd);
}
if (exit_code) {
retval = exit_code;
} else {
retval = error ? EXIT_FAILURE : EXIT_SUCCESS;
}
exit (retval);
}
int main (int argc, char **argv) {
signal (SIGSEGV, termination_signal_handler);
signal (SIGABRT, termination_signal_handler);
signal (SIGBUS, termination_signal_handler);
signal (SIGQUIT, termination_signal_handler);
signal (SIGFPE, termination_signal_handler);
signal (SIGPIPE, SIG_IGN);
signal (SIGTERM, sig_term_handler);
signal (SIGINT, sig_term_handler);
rl_catch_signals = 0;
log_level = 10;
args_parse (argc, argv);
change_user_group ();
if (port > 0) {
struct sockaddr_in serv_addr;
int yes = 1;
sfd = socket (AF_INET, SOCK_STREAM, 0);
if (sfd < 0) {
perror ("socket");
exit(1);
}
if(setsockopt(sfd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(int)) < 0) {
perror("setsockopt");
exit(1);
}
memset (&serv_addr, 0, sizeof (serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_addr.s_addr = accept_any_tcp ? INADDR_ANY : htonl (0x7f000001);
serv_addr.sin_port = htons (port);
if (bind (sfd, (struct sockaddr *) &serv_addr, sizeof (serv_addr)) < 0) {
perror ("bind");
exit(1);
}
listen (sfd, 5);
} else {
sfd = -1;
}
if (unix_socket) {
assert (strlen (unix_socket) < 100);
struct sockaddr_un serv_addr;
usfd = socket (AF_UNIX, SOCK_STREAM, 0);
if (usfd < 0) {
perror ("socket");
exit(1);
}
memset (&serv_addr, 0, sizeof (serv_addr));
serv_addr.sun_family = AF_UNIX;
snprintf (serv_addr.sun_path, sizeof(serv_addr.sun_path), "%s", unix_socket);
if (bind (usfd, (struct sockaddr *) &serv_addr, sizeof (serv_addr)) < 0) {
perror ("bind");
exit(1);
}
listen (usfd, 5);
} else {
usfd = -1;
}
if (daemonize) {
signal (SIGHUP, sighup_handler);
reopen_logs ();
}
signal (SIGUSR1, sigusr1_handler);
if (!disable_output) {
printf (
"Telegram-cli version " TELEGRAM_CLI_VERSION ", Copyright (C) 2013-2015 Vitaly Valtman\n"
"Telegram-cli comes with ABSOLUTELY NO WARRANTY; for details type `show_license'.\n"
"This is free software, and you are welcome to redistribute it\n"
"under certain conditions; type `show_license' for details.\n"
"Telegram-cli uses libtgl version " TGL_VERSION "\n"