sjero.net Git - linphone/blob - console/linphonec.c

   1 /****************************************************************************
   2  *
   3  *  $Id: linphonec.c,v 1.57 2007/11/14 13:40:27 smorlat Exp $
   4  *
   5  *  Copyright (C) 2006  Sandro Santilli <strk@keybit.net>
   6  *  Copyright (C) 2002  Florian Winterstein <flox@gmx.net>
   7  *  Copyright (C) 2000  Simon MORLAT <simon.morlat@free.fr>
   8  *
   9 ****************************************************************************
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License
  13  * as published by the Free Software Foundation; either version 2
  14  * of the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  24  *
  25  ****************************************************************************/
  26 #include <string.h>
  27 #ifndef _WIN32_WCE
  28 #include <sys/time.h>
  29 #include <sys/types.h>
  30 #include <unistd.h>
  31 #include <errno.h>
  32 #include <signal.h>
  33 #include "private.h" /*coreapi/private.h, needed for LINPHONE_VERSION */
  34 #endif /*_WIN32_WCE*/
  35 #include <limits.h>
  36 #include <ctype.h>
  37 #include <stdlib.h>
  38
  39 #include <linphonecore.h>
  40
  41 #include "linphonec.h"
  42
  43 #ifdef WIN32
  44 #include <ws2tcpip.h>
  45 #include <ctype.h>
  46 #ifndef _WIN32_WCE
  47 #include <conio.h>
  48 #endif /*_WIN32_WCE*/
  49 #else
  50 #include <sys/socket.h>
  51 #include <netdb.h>
  52 #include <sys/un.h>
  53 #include <sys/stat.h>
  54 #endif
  55
  56 #if defined(_WIN32_WCE)
  57
  58 #if !defined(PATH_MAX)
  59 #define PATH_MAX 256
  60 #endif /*PATH_MAX*/
  61
  62 #if !defined(strdup)
  63 #define strdup _strdup
  64 #endif /*strdup*/
  65
  66 #endif /*_WIN32_WCE*/
  67
  68 #ifdef HAVE_GETTEXT
  69 #include <libintl.h>
  70 #ifndef _
  71 #define _(String) gettext(String)
  72 #endif
  73 #else
  74 #define _(something)    (something)
  75 #endif
  76
  77 #ifndef PACKAGE_DIR
  78 #define PACKAGE_DIR ""
  79 #endif
  80
  81 #ifdef HAVE_X11_XLIB_H
  82 #include <X11/Xlib.h>
  83 #endif
  84
  85 /***************************************************************************
  86  *
  87  *  Types
  88  *
  89  ***************************************************************************/
  90
  91 typedef struct {
  92         LinphoneAuthInfo *elem[MAX_PENDING_AUTH];
  93         int nitems;
  94 } LPC_AUTH_STACK;
  95
  96 /***************************************************************************
  97  *
  98  *  Forward declarations
  99  *
 100  ***************************************************************************/
 101
 102 char *lpc_strip_blanks(char *input);
 103
 104 static int handle_configfile_migration(void);
 105 #if !defined(_WIN32_WCE)
 106 static int copy_file(const char *from, const char *to);
 107 #endif /*_WIN32_WCE*/
 108 static int linphonec_parse_cmdline(int argc, char **argv);
 109 static int linphonec_init(int argc, char **argv);
 110 static int linphonec_main_loop (LinphoneCore * opm);
 111 static int linphonec_idle_call (void);
 112 #ifdef HAVE_READLINE
 113 static int linphonec_initialize_readline(void);
 114 static int linphonec_finish_readline();
 115 static char **linephonec_readline_completion(const char *text,
 116         int start, int end);
 117 #endif
 118
 119 /* These are callback for linphone core */
 120 static void linphonec_prompt_for_auth(LinphoneCore *lc, const char *realm,
 121         const char *username);
 122 static void linphonec_display_refer (LinphoneCore * lc, const char *refer_to);
 123 static void linphonec_display_something (LinphoneCore * lc, const char *something);
 124 static void linphonec_display_url (LinphoneCore * lc, const char *something, const char *url);
 125 static void linphonec_display_warning (LinphoneCore * lc, const char *something);
 126 static void linphonec_notify_received(LinphoneCore *lc, LinphoneCall *call, const char *from,const char *event);
 127
 128 static void linphonec_notify_presence_received(LinphoneCore *lc,LinphoneFriend *fid);
 129 static void linphonec_new_unknown_subscriber(LinphoneCore *lc,
 130                 LinphoneFriend *lf, const char *url);
 131
 132 static void linphonec_text_received(LinphoneCore *lc, LinphoneChatRoom *cr,
 133                 const LinphoneAddress *from, const char *msg);
 134 static void linphonec_display_status (LinphoneCore * lc, const char *something);
 135 static void linphonec_dtmf_received(LinphoneCore *lc, LinphoneCall *call, int dtmf);
 136 static void print_prompt(LinphoneCore *opm);
 137 void linphonec_out(const char *fmt,...);
 138 /***************************************************************************
 139  *
 140  * Global variables
 141  *
 142  ***************************************************************************/
 143
 144 LinphoneCore *linphonec;
 145 FILE *mylogfile;
 146 #ifdef HAVE_READLINE
 147 static char *histfile_name=NULL;
 148 static char last_in_history[256];
 149 #endif
 150 //auto answer (-a) option
 151 static bool_t auto_answer=FALSE;
 152 static bool_t answer_call=FALSE;
 153 static bool_t vcap_enabled=FALSE;
 154 static bool_t display_enabled=FALSE;
 155 static bool_t preview_enabled=FALSE;
 156 static bool_t show_general_state=FALSE;
 157 static bool_t unix_socket=FALSE;
 158 static bool_t linphonec_running=TRUE;
 159 LPC_AUTH_STACK auth_stack;
 160 static int trace_level = 0;
 161 static char *logfile_name = NULL;
 162 static char configfile_name[PATH_MAX];
 163 static const char *factory_configfile_name=NULL;
 164 static char *sip_addr_to_call = NULL; /* for autocall */
 165 static int window_id = 0; /* 0=standalone window, or window id for embedding video */
 166 #if !defined(_WIN32_WCE)
 167 static ortp_pipe_t client_sock=ORTP_PIPE_INVALID;
 168 #endif /*_WIN32_WCE*/
 169 char prompt[PROMPT_MAX_LEN];
 170 #if !defined(_WIN32_WCE)
 171 static ortp_thread_t pipe_reader_th;
 172 static bool_t pipe_reader_run=FALSE;
 173 #endif /*_WIN32_WCE*/
 174 #if !defined(_WIN32_WCE)
 175 static ortp_pipe_t server_sock;
 176 #endif /*_WIN32_WCE*/
 177
 178 bool_t linphonec_camera_enabled=TRUE;
 179
 180
 181
 182 void linphonec_call_identify(LinphoneCall* call){
 183         static long callid=1;
 184         linphone_call_set_user_pointer (call,(void*)callid);
 185         callid++;
 186 }
 187
 188 LinphoneCall *linphonec_get_call(long id){
 189         const MSList *elem=linphone_core_get_calls(linphonec);
 190         for (;elem!=NULL;elem=elem->next){
 191                 LinphoneCall *call=(LinphoneCall*)elem->data;
 192                 if (linphone_call_get_user_pointer (call)==(void*)id){
 193                         return call;
 194                 }
 195         }
 196         linphonec_out("Sorry, no call with id %i exists at this time.\n",id);
 197         return NULL;
 198 }
 199
 200 /***************************************************************************
 201  *
 202  * Linphone core callbacks
 203  *
 204  ***************************************************************************/
 205
 206 /*
 207  * Linphone core callback
 208  */
 209 static void
 210 linphonec_display_refer (LinphoneCore * lc, const char *refer_to)
 211 {
 212         linphonec_out("Receiving out of call refer to %s\n", refer_to);
 213 }
 214
 215 /*
 216  * Linphone core callback
 217  */
 218 static void
 219 linphonec_display_something (LinphoneCore * lc, const char *something)
 220 {
 221         fprintf (stdout, "%s\n%s", something,prompt);
 222         fflush(stdout);
 223 }
 224
 225 /*
 226  * Linphone core callback
 227  */
 228 static void
 229 linphonec_display_status (LinphoneCore * lc, const char *something)
 230 {
 231         fprintf (stdout, "%s\n%s", something,prompt);
 232         fflush(stdout);
 233 }
 234
 235 /*
 236  * Linphone core callback
 237  */
 238 static void
 239 linphonec_display_warning (LinphoneCore * lc, const char *something)
 240 {
 241         fprintf (stdout, "Warning: %s\n%s", something,prompt);
 242         fflush(stdout);
 243 }
 244
 245 /*
 246  * Linphone core callback
 247  */
 248 static void
 249 linphonec_display_url (LinphoneCore * lc, const char *something, const char *url)
 250 {
 251         fprintf (stdout, "%s : %s\n", something, url);
 252 }
 253
 254 /*
 255  * Linphone core callback
 256  */
 257 static void
 258 linphonec_prompt_for_auth(LinphoneCore *lc, const char *realm, const char *username)
 259 {
 260         /* no prompt possible when using pipes or tcp mode*/
 261         if (unix_socket){
 262                 linphone_core_abort_authentication(lc,NULL);
 263         }else{
 264                 LinphoneAuthInfo *pending_auth;
 265
 266                 if ( auth_stack.nitems+1 > MAX_PENDING_AUTH )
 267                 {
 268                         fprintf(stderr,
 269                                 "Can't accept another authentication request.\n"
 270                                 "Consider incrementing MAX_PENDING_AUTH macro.\n");
 271                         return;
 272                 }
 273
 274                 pending_auth=linphone_auth_info_new(username,NULL,NULL,NULL,realm);
 275                 auth_stack.elem[auth_stack.nitems++]=pending_auth;
 276         }
 277 }
 278
 279 /*
 280  * Linphone core callback
 281  */
 282 static void
 283 linphonec_notify_received(LinphoneCore *lc, LinphoneCall *call, const char *from,const char *event)
 284 {
 285         if(!strcmp(event,"refer"))
 286         {
 287                 linphonec_out("The distand endpoint %s of call %li has been transfered, you can safely close the call.\n",
 288                               from,(long)linphone_call_get_user_pointer (call));
 289         }
 290 }
 291
 292
 293 /*
 294  * Linphone core callback
 295  */
 296 static void
 297 linphonec_notify_presence_received(LinphoneCore *lc,LinphoneFriend *fid)
 298 {
 299         char *tmp=linphone_address_as_string(linphone_friend_get_address(fid));
 300         printf("Friend %s is %s\n", tmp, linphone_online_status_to_string(linphone_friend_get_status(fid)));
 301         ms_free(tmp);
 302         // todo: update Friend list state (unimplemented)
 303 }
 304
 305 /*
 306  * Linphone core callback
 307  */
 308 static void
 309 linphonec_new_unknown_subscriber(LinphoneCore *lc, LinphoneFriend *lf,
 310                 const char *url)
 311 {
 312         printf("Friend %s requested subscription "
 313                 "(accept/deny is not implemented yet)\n", url);
 314         // This means that this person wishes to be notified
 315         // of your presence information (online, busy, away...).
 316
 317 }
 318
 319 static void linphonec_call_updated(LinphoneCall *call){
 320         const LinphoneCallParams *cp=linphone_call_get_current_params(call);
 321         if (!linphone_call_camera_enabled (call) && linphone_call_params_video_enabled (cp)){
 322                 linphonec_out("Far end requests to share video.\nType 'camera on' if you agree.\n");
 323         }
 324 }
 325
 326 static void linphonec_call_encryption_changed(LinphoneCore *lc, LinphoneCall *call, bool_t encrypted, const char *auth_token) {
 327         long id=(long)linphone_call_get_user_pointer (call);
 328         if (!encrypted) {
 329                 linphonec_out("Call %i is not fully encrypted and auth token is %s.\n", id,
 330                                 (auth_token != NULL) ? auth_token : "absent");
 331         } else {
 332                 linphonec_out("Call %i is fully encrypted and auth token is %s.\n", id,
 333                                 (auth_token != NULL) ? auth_token : "absent");
 334         }
 335 }
 336
 337 static void linphonec_call_state_changed(LinphoneCore *lc, LinphoneCall *call, LinphoneCallState st, const char *msg){
 338         char *from=linphone_call_get_remote_address_as_string(call);
 339         long id=(long)linphone_call_get_user_pointer (call);
 340         switch(st){
 341                 case LinphoneCallEnd:
 342                         linphonec_out("Call %i with %s ended (%s).\n", id, from, linphone_reason_to_string(linphone_call_get_reason(call)));
 343                 break;
 344                 case LinphoneCallResuming:
 345                         linphonec_out("Resuming call %i with %s.\n", id, from);
 346                 break;
 347                 case LinphoneCallStreamsRunning:
 348                         linphonec_out("Media streams established with %s for call %i.\n", from,id);
 349                 break;
 350                 case LinphoneCallPausing:
 351                         linphonec_out("Pausing call %i with %s.\n", id, from);
 352                 break;
 353                 case LinphoneCallPaused:
 354                         linphonec_out("Call %i with %s is now paused.\n", id, from);
 355                 break;
 356                 case LinphoneCallPausedByRemote:
 357                         linphonec_out("Call %i has been paused by %s.\n",id,from);
 358                 break;
 359                 case LinphoneCallIncomingReceived:
 360                         linphonec_call_identify(call);
 361                         linphone_call_enable_camera (call,linphonec_camera_enabled);
 362                         id=(long)linphone_call_get_user_pointer (call);
 363                         linphonec_set_caller(from);
 364                         if ( auto_answer)  {
 365                                 answer_call=TRUE;
 366                         }
 367                         linphonec_out("Receiving new incoming call from %s, assigned id %i\n", from,id);
 368                 break;
 369                 case LinphoneCallOutgoingInit:
 370                         linphonec_call_identify(call);
 371                         id=(long)linphone_call_get_user_pointer (call);
 372                         linphonec_out("Establishing call id to %s, assigned id %i\n", from,id);
 373                 break;
 374                 case LinphoneCallUpdatedByRemote:
 375                         linphonec_call_updated(call);
 376                 break;
 377                 case LinphoneCallOutgoingProgress:
 378                         linphonec_out("Call %i to %s in progress.\n", id, from);
 379                         break;
 380                 case LinphoneCallOutgoingRinging:
 381                         linphonec_out("Call %i to %s ringing.\n", id, from);
 382                         break;
 383                 case LinphoneCallConnected:
 384                         linphonec_out("Call %i with %s connected.\n", id, from);
 385                         break;
 386                 case LinphoneCallOutgoingEarlyMedia:
 387                         linphonec_out("Call %i with %s early media.\n", id, from);
 388                         break;
 389                 case LinphoneCallError:
 390                         linphonec_out("Call %i with %s error.\n", id, from);
 391                         break;
 392                 default:
 393                 break;
 394         }
 395         ms_free(from);
 396 }
 397
 398 /*
 399  * Linphone core callback
 400  */
 401 static void
 402 linphonec_text_received(LinphoneCore *lc, LinphoneChatRoom *cr,
 403                 const LinphoneAddress *from, const char *msg)
 404 {
 405         linphonec_out("Message received from %s: %s\n", linphone_address_as_string(from), msg);
 406         // TODO: provide mechanism for answering.. ('say' command?)
 407 }
 408
 409
 410 static void linphonec_dtmf_received(LinphoneCore *lc, LinphoneCall *call, int dtmf){
 411         char *from=linphone_call_get_remote_address_as_string(call);
 412         fprintf(stdout,"Receiving tone %c from %s\n",dtmf,from);
 413         fflush(stdout);
 414         ms_free(from);
 415 }
 416
 417 static char received_prompt[PROMPT_MAX_LEN];
 418 static ms_mutex_t prompt_mutex;
 419 static bool_t have_prompt=FALSE;
 420
 421 static void *prompt_reader_thread(void *arg){
 422         char *ret;
 423         char tmp[PROMPT_MAX_LEN];
 424         while ((ret=fgets(tmp,sizeof(tmp),stdin))!=NULL){
 425                 ms_mutex_lock(&prompt_mutex);
 426                 strcpy(received_prompt,ret);
 427                 have_prompt=TRUE;
 428                 ms_mutex_unlock(&prompt_mutex);
 429         }
 430         return NULL;
 431 }
 432
 433 static void start_prompt_reader(void){
 434         ortp_thread_t th;
 435         ms_mutex_init(&prompt_mutex,NULL);
 436         ortp_thread_create(&th,NULL,prompt_reader_thread,NULL);
 437 }
 438 #if !defined(_WIN32_WCE)
 439 static ortp_pipe_t create_server_socket(void){
 440         char path[128];
 441 #ifndef WIN32
 442         snprintf(path,sizeof(path)-1,"linphonec-%i",getuid());
 443 #else
 444         {
 445                 TCHAR username[128];
 446                 DWORD size=sizeof(username)-1;
 447                 GetUserName(username,&size);
 448                 snprintf(path,sizeof(path)-1,"linphonec-%s",username);
 449         }
 450 #endif
 451         return ortp_server_pipe_create(path);
 452 }
 453
 454
 455 static void *pipe_thread(void*p){
 456         char tmp[250];
 457         server_sock=create_server_socket();
 458         if (server_sock==ORTP_PIPE_INVALID) return NULL;
 459         while(pipe_reader_run){
 460                 while(client_sock!=ORTP_PIPE_INVALID){ /*sleep until the last command is finished*/
 461 #ifndef WIN32
 462                         usleep(20000);
 463 #else
 464                         Sleep(20);
 465 #endif
 466                 }
 467                 client_sock=ortp_server_pipe_accept_client(server_sock);
 468                 if (client_sock!=ORTP_PIPE_INVALID){
 469                         int len;
 470                         /*now read from the client */
 471                         if ((len=ortp_pipe_read(client_sock,(uint8_t*)tmp,sizeof(tmp)-1))>0){
 472                                 ortp_mutex_lock(&prompt_mutex);
 473                                 tmp[len]='\0';
 474                                 strcpy(received_prompt,tmp);
 475                                 printf("Receiving command '%s'\n",received_prompt);fflush(stdout);
 476                                 have_prompt=TRUE;
 477                                 ortp_mutex_unlock(&prompt_mutex);
 478                         }else{
 479                                 printf("read nothing\n");fflush(stdout);
 480                                 ortp_server_pipe_close_client(client_sock);
 481                                 client_sock=ORTP_PIPE_INVALID;
 482                         }
 483
 484                 }else{
 485                         if (pipe_reader_run) fprintf(stderr,"accept() failed: %s\n",strerror(errno));
 486                 }
 487         }
 488         ms_message("Exiting pipe_reader_thread.");
 489         fflush(stdout);
 490         return NULL;
 491 }
 492
 493 static void start_pipe_reader(void){
 494         ms_mutex_init(&prompt_mutex,NULL);
 495         pipe_reader_run=TRUE;
 496         ortp_thread_create(&pipe_reader_th,NULL,pipe_thread,NULL);
 497 }
 498
 499 static void stop_pipe_reader(void){
 500         pipe_reader_run=FALSE;
 501         linphonec_command_finished();
 502         ortp_server_pipe_close(server_sock);
 503         ortp_thread_join(pipe_reader_th,NULL);
 504 }
 505 #endif /*_WIN32_WCE*/
 506
 507 #ifdef HAVE_READLINE
 508 #define BOOL_HAVE_READLINE 1
 509 #else
 510 #define BOOL_HAVE_READLINE 0
 511 #endif
 512
 513 char *linphonec_readline(char *prompt){
 514         if (unix_socket || !BOOL_HAVE_READLINE ){
 515                 static bool_t prompt_reader_started=FALSE;
 516                 static bool_t pipe_reader_started=FALSE;
 517                 if (!prompt_reader_started){
 518                         start_prompt_reader();
 519                         prompt_reader_started=TRUE;
 520                 }
 521                 if (unix_socket && !pipe_reader_started){
 522 #if !defined(_WIN32_WCE)
 523                         start_pipe_reader();
 524                         pipe_reader_started=TRUE;
 525 #endif /*_WIN32_WCE*/
 526                 }
 527                 fprintf(stdout,"%s",prompt);
 528                 fflush(stdout);
 529                 while(1){
 530                         ms_mutex_lock(&prompt_mutex);
 531                         if (have_prompt){
 532                                 char *ret=strdup(received_prompt);
 533                                 have_prompt=FALSE;
 534                                 ms_mutex_unlock(&prompt_mutex);
 535                                 return ret;
 536                         }
 537                         ms_mutex_unlock(&prompt_mutex);
 538                         linphonec_idle_call();
 539 #ifdef WIN32
 540                         Sleep(20);
 541                         /* Following is to get the video window going as it
 542                                  should. Maybe should we only have this on when the option -V
 543                                  or -D is on? */
 544                         MSG msg;
 545
 546                         if (PeekMessage(&msg, NULL, 0, 0,1)) {
 547                                 TranslateMessage(&msg);
 548                                 DispatchMessage(&msg);
 549                         }
 550 #else
 551                         usleep(20000);
 552 #endif
 553                 }
 554         }else{
 555 #ifdef HAVE_READLINE
 556                 return readline(prompt);
 557 #endif
 558         }
 559 }
 560
 561 void linphonec_out(const char *fmt,...){
 562         char *res;
 563         va_list args;
 564         va_start (args, fmt);
 565         res=ortp_strdup_vprintf(fmt,args);
 566         va_end (args);
 567         printf("%s",res);
 568         fflush(stdout);
 569 #if !defined(_WIN32_WCE)
 570         if (client_sock!=ORTP_PIPE_INVALID){
 571                 if (ortp_pipe_write(client_sock,(uint8_t*)res,strlen(res))==-1){
 572                         fprintf(stderr,"Fail to send output via pipe: %s",strerror(errno));
 573                 }
 574         }
 575 #endif /*_WIN32_WCE*/
 576         ortp_free(res);
 577 }
 578
 579 void linphonec_command_finished(void){
 580 #if !defined(_WIN32_WCE)
 581         if (client_sock!=ORTP_PIPE_INVALID){
 582                 ortp_server_pipe_close_client(client_sock);
 583                 client_sock=ORTP_PIPE_INVALID;
 584         }
 585 #endif /*_WIN32_WCE*/
 586 }
 587
 588 void linphonec_set_autoanswer(bool_t enabled){
 589         auto_answer=enabled;
 590 }
 591
 592 bool_t linphonec_get_autoanswer(){
 593         return auto_answer;
 594 }
 595
 596 LinphoneCoreVTable linphonec_vtable={0};
 597
 598 /***************************************************************************/
 599 /*
 600  * Main
 601  *
 602  * Use globals:
 603  *
 604  *      - char *histfile_name
 605  *      - FILE *mylogfile
 606  */
 607 #if defined (_WIN32_WCE)
 608
 609 char **convert_args_to_ascii(int argc, _TCHAR **wargv){
 610         int i;
 611         char **result=malloc(argc*sizeof(char*));
 612         char argtmp[128];
 613         for(i=0;i<argc;++i){
 614                 wcstombs(argtmp,wargv[i],sizeof(argtmp));
 615                 result[i]=strdup(argtmp);
 616         }
 617         return result;
 618 }
 619
 620 int _tmain(int argc, _TCHAR* wargv[]) {
 621         char **argv=convert_args_to_ascii(argc,wargv);
 622         trace_level=6;
 623
 624 #else
 625 int
 626 main (int argc, char *argv[]) {
 627 #endif
 628         linphonec_vtable.call_state_changed=linphonec_call_state_changed;
 629         linphonec_vtable.notify_presence_recv = linphonec_notify_presence_received;
 630         linphonec_vtable.new_subscription_request = linphonec_new_unknown_subscriber;
 631         linphonec_vtable.auth_info_requested = linphonec_prompt_for_auth;
 632         linphonec_vtable.display_status = linphonec_display_status;
 633         linphonec_vtable.display_message=linphonec_display_something;
 634         linphonec_vtable.display_warning=linphonec_display_warning;
 635         linphonec_vtable.display_url=linphonec_display_url;
 636         linphonec_vtable.text_received=linphonec_text_received;
 637         linphonec_vtable.dtmf_received=linphonec_dtmf_received;
 638         linphonec_vtable.refer_received=linphonec_display_refer;
 639         linphonec_vtable.notify_recv=linphonec_notify_received;
 640         linphonec_vtable.call_encryption_changed=linphonec_call_encryption_changed;
 641
 642         if (! linphonec_init(argc, argv) ) exit(EXIT_FAILURE);
 643
 644         linphonec_main_loop (linphonec);
 645
 646         linphonec_finish(EXIT_SUCCESS);
 647
 648         exit(EXIT_SUCCESS); /* should never reach here */
 649 }
 650
 651 /*
 652  * Initialize linphonec
 653  */
 654 static int
 655 linphonec_init(int argc, char **argv)
 656 {
 657
 658         //g_mem_set_vtable(&dbgtable);
 659
 660         /*
 661          * Set initial values for global variables
 662          */
 663         mylogfile = NULL;
 664
 665
 666 #ifndef _WIN32
 667         snprintf(configfile_name, PATH_MAX, "%s/.linphonerc",
 668                         getenv("HOME"));
 669 #elif defined(_WIN32_WCE)
 670         strncpy(configfile_name,PACKAGE_DIR "\\linphonerc",PATH_MAX);
 671         mylogfile=fopen(PACKAGE_DIR "\\" "linphonec.log","w");
 672         printf("Logs are redirected in" PACKAGE_DIR "\\linphonec.log");
 673 #else
 674         snprintf(configfile_name, PATH_MAX, "%s/Linphone/linphonerc",
 675                         getenv("APPDATA"));
 676 #endif
 677         /* Handle configuration filename changes */
 678         switch (handle_configfile_migration())
 679         {
 680                 case -1: /* error during file copies */
 681                         fprintf(stderr,
 682                                 "Error in configuration file migration\n");
 683                         break;
 684
 685                 case 0: /* nothing done */
 686                 case 1: /* migrated */
 687                 default:
 688                         break;
 689         }
 690
 691 #ifdef ENABLE_NLS
 692         if (NULL == bindtextdomain (GETTEXT_PACKAGE, PACKAGE_LOCALE_DIR))
 693                 perror ("bindtextdomain failed");
 694 #ifndef __ARM__
 695         bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
 696 #endif
 697         textdomain (GETTEXT_PACKAGE);
 698 #else
 699         printf ("NLS disabled.\n");
 700 #endif
 701
 702         linphonec_parse_cmdline(argc, argv);
 703
 704         if (trace_level > 0)
 705         {
 706                 if (logfile_name != NULL)
 707                         mylogfile = fopen (logfile_name, "w+");
 708
 709                 if (mylogfile == NULL)
 710                 {
 711                         mylogfile = stdout;
 712                         fprintf (stderr,
 713                                  "INFO: no logfile, logging to stdout\n");
 714                 }
 715                 linphone_core_enable_logs(mylogfile);
 716         }
 717         else
 718         {
 719                 linphone_core_disable_logs();
 720         }
 721         /*
 722          * Initialize auth stack
 723          */
 724         auth_stack.nitems=0;
 725
 726         /*
 727          * Initialize linphone core
 728          */
 729         linphonec=linphone_core_new (&linphonec_vtable, configfile_name, factory_configfile_name, NULL);
 730         linphone_core_enable_video(linphonec,vcap_enabled,display_enabled);
 731         if (display_enabled && window_id != 0)
 732         {
 733                 printf ("Setting window_id: 0x%x\n", window_id);
 734                 linphone_core_set_native_video_window_id(linphonec,window_id);
 735         }
 736
 737         linphone_core_enable_video_preview(linphonec,preview_enabled);
 738         if (!(vcap_enabled || display_enabled)) printf("Warning: video is disabled in linphonec, use -V or -C or -D to enable.\n");
 739 #ifdef HAVE_READLINE
 740         /*
 741          * Initialize readline
 742          */
 743         linphonec_initialize_readline();
 744 #endif
 745 #if !defined(_WIN32_WCE)
 746         /*
 747          * Initialize signal handlers
 748          */
 749         signal(SIGTERM, linphonec_finish);
 750         signal(SIGINT, linphonec_finish);
 751 #endif /*_WIN32_WCE*/
 752         return 1;
 753 }
 754
 755
 756 void linphonec_main_loop_exit(void){
 757         linphonec_running=FALSE;
 758 }
 759
 760 /*
 761  * Close linphonec, cleanly terminating
 762  * any pending call
 763  */
 764 void
 765 linphonec_finish(int exit_status)
 766 {
 767         // Do not allow concurrent destroying to prevent glibc errors
 768         static bool_t terminating=FALSE;
 769         if (terminating) return;
 770         terminating=TRUE;
 771         linphonec_out("Terminating...\n");
 772
 773         /* Terminate any pending call */
 774         linphone_core_terminate_all_calls(linphonec);
 775 #ifdef HAVE_READLINE
 776         linphonec_finish_readline();
 777 #endif
 778 #if !defined(_WIN32_WCE)
 779         if (pipe_reader_run)
 780                 stop_pipe_reader();
 781 #endif /*_WIN32_WCE*/
 782
 783         linphone_core_destroy (linphonec);
 784
 785         if (mylogfile != NULL && mylogfile != stdout)
 786         {
 787                 fclose (mylogfile);
 788         }
 789         printf("\n");
 790         exit(exit_status);
 791
 792 }
 793
 794 /*
 795  * This is called from idle_call() whenever
 796  * pending_auth != NULL.
 797  *
 798  * It prompts user for a password.
 799  * Hitting ^D (EOF) would make this function
 800  * return 0 (Cancel).
 801  * Any other input would try to set linphone core
 802  * auth_password for the pending_auth, add the auth_info
 803  * and return 1.
 804  */
 805 int
 806 linphonec_prompt_for_auth_final(LinphoneCore *lc)
 807 {
 808         static int reentrancy=0;
 809         char *input, *iptr;
 810         char auth_prompt[256];
 811 #ifdef HAVE_READLINE
 812         rl_hook_func_t *old_event_hook;
 813 #endif
 814
 815         if (reentrancy!=0) return 0;
 816
 817         reentrancy++;
 818
 819         LinphoneAuthInfo *pending_auth=auth_stack.elem[auth_stack.nitems-1];
 820
 821         snprintf(auth_prompt, 256, "Password for %s on %s: ",
 822                 pending_auth->username, pending_auth->realm);
 823
 824         printf("\n");
 825 #ifdef HAVE_READLINE
 826         /*
 827          * Disable event hook to avoid entering an
 828          * infinite loop. This would prevent idle_call
 829          * from being called during authentication reads.
 830          * Note that it might be undesiderable...
 831          */
 832         old_event_hook=rl_event_hook;
 833         rl_event_hook=NULL;
 834 #endif
 835
 836         while (1)
 837         {
 838                 input=linphonec_readline(auth_prompt);
 839
 840                 /*
 841                  * If EOF (^D) is sent you probably don't want
 842                  * to provide an auth password... should give up
 843                  * the operation, but there's no mechanism to
 844                  * send this info back to caller currently...
 845                  */
 846                 if ( ! input )
 847                 {
 848                         printf("Cancel requested, but not implemented.\n");
 849                         continue;
 850                 }
 851
 852                 /* Strip blanks */
 853                 iptr=lpc_strip_blanks(input);
 854
 855                 /*
 856                  * Only blanks, continue asking
 857                  */
 858                 if ( ! *iptr )
 859                 {
 860                         free(input);
 861                         continue;
 862                 }
 863
 864                 /* Something typed, let's try */
 865                 break;
 866         }
 867
 868         /*
 869          * No check is done here to ensure password is correct.
 870          * I guess password will be asked again later.
 871          */
 872         linphone_auth_info_set_passwd(pending_auth, input);
 873         linphone_core_add_auth_info(lc, pending_auth);
 874         linphone_auth_info_destroy(pending_auth);
 875         auth_stack.elem[auth_stack.nitems-1]=0;
 876         --(auth_stack.nitems);
 877 #ifdef HAVE_READLINE
 878         /*
 879          * Reset line_buffer, to avoid the password
 880          * to be used again from outer readline
 881          */
 882         rl_line_buffer[0]='\0';
 883         rl_event_hook=old_event_hook;
 884 #endif
 885         return 1;
 886 }
 887
 888 void
 889 print_usage (int exit_status)
 890 {
 891         fprintf (stdout, "\n\
 892 usage: linphonec [-c file] [-s sipaddr] [-a] [-V] [-d level ] [-l logfile]\n\
 893        linphonec -v\n\
 894 \n\
 895   -b  file             specify path of readonly factory configuration file.\n\
 896   -c  file             specify path of configuration file.\n\
 897   -d  level            be verbose. 0 is no output. 6 is all output\n\
 898   -l  logfile          specify the log file for your SIP phone\n\
 899   -s  sipaddress       specify the sip call to do at startup\n\
 900   -a                   enable auto answering for incoming calls\n\
 901   -V                   enable video features globally (disabled by default)\n\
 902   -C                   enable video capture only (disabled by default)\n\
 903   -D                   enable video display only (disabled by default)\n\
 904   -S                   show general state messages (disabled by default)\n\
 905   --wid  windowid      force embedding of video window into provided windowid (disabled by default)\n\
 906   -v or --version      display version and exits.\n");
 907
 908         exit(exit_status);
 909 }
 910
 911 #ifdef VIDEO_ENABLED
 912
 913 #ifdef HAVE_X11_XLIB_H
 914 static void x11_apply_video_params(VideoParams *params, Window window){
 915         XWindowChanges wc;
 916         unsigned int flags=0;
 917         static Display *display = NULL;
 918         const char *dname=getenv("DISPLAY");
 919
 920         if (display==NULL && dname!=NULL){
 921                 XInitThreads();
 922                 display=XOpenDisplay(dname);
 923         }
 924
 925         if (display==NULL){
 926                 ms_error("Could not open display %s",dname);
 927                 return;
 928         }
 929         memset(&wc,0,sizeof(wc));
 930         wc.x=params->x;
 931         wc.y=params->y;
 932         wc.width=params->w;
 933         wc.height=params->h;
 934         if (params->x!=-1 ){
 935                 flags|=CWX|CWY;
 936         }
 937         if (params->w!=-1){
 938                 flags|=CWWidth|CWHeight;
 939         }
 940         /*printf("XConfigureWindow x=%i,y=%i,w=%i,h=%i\n",
 941                wc.x, wc.y ,wc.width, wc.height);*/
 942         XConfigureWindow(display,window,flags,&wc);
 943         if (params->show)
 944                 XMapWindow(display,window);
 945         else
 946                 XUnmapWindow(display,window);
 947         XSync(display,FALSE);
 948 }
 949 #endif
 950
 951
 952 static void lpc_apply_video_params(){
 953         static unsigned long old_wid=0,old_pwid=0;
 954         unsigned long wid=linphone_core_get_native_video_window_id (linphonec);
 955         unsigned long pwid=linphone_core_get_native_preview_window_id (linphonec);
 956
 957         if (wid!=0 && (lpc_video_params.refresh || old_wid!=wid)){
 958                 lpc_video_params.refresh=FALSE;
 959 #ifdef HAVE_X11_XLIB_H
 960                 if (lpc_video_params.wid==0){  // do not manage window if embedded
 961                         x11_apply_video_params(&lpc_video_params,wid);
 962                 }
 963 #endif
 964         }
 965         old_wid=wid;
 966         if (pwid!=0 && (lpc_preview_params.refresh || old_pwid!=pwid)){
 967                 lpc_preview_params.refresh=FALSE;
 968 #ifdef HAVE_X11_XLIB_H
 969                 /*printf("wid=%lu pwid=%lu\n",wid,pwid);*/
 970                 if (lpc_preview_params.wid==0){  // do not manage window if embedded
 971                         printf("Refreshing\n");
 972                         x11_apply_video_params(&lpc_preview_params,pwid);
 973                 }
 974 #endif
 975         }
 976         old_pwid=pwid;
 977 }
 978
 979 #endif
 980
 981
 982 /*
 983  *
 984  * Called every second from main read loop.
 985  *
 986  * Will use the following globals:
 987  *
 988  *  - LinphoneCore linphonec
 989  *  - LPC_AUTH_STACK auth_stack;
 990  *
 991  */
 992 static int
 993 linphonec_idle_call ()
 994 {
 995         LinphoneCore *opm=linphonec;
 996
 997         /* Uncomment the following to verify being called */
 998         /* printf(".\n"); */
 999
1000         linphone_core_iterate(opm);
1001         if (answer_call){
1002                 fprintf (stdout, "-------auto answering to call-------\n" );
1003                 linphone_core_accept_call(opm,NULL);
1004                 answer_call=FALSE;
1005         }
1006         /* auto call handling */
1007         if (sip_addr_to_call != NULL )
1008         {
1009                 char buf[512];
1010                 snprintf (buf, sizeof(buf),"call %s", sip_addr_to_call);
1011                 sip_addr_to_call=NULL;
1012                 linphonec_parse_command_line(linphonec, buf);
1013         }
1014
1015         if ( auth_stack.nitems )
1016         {
1017                 /*
1018                  * Inhibit command completion
1019                  * during password prompts
1020                  */
1021 #ifdef HAVE_READLINE
1022                 rl_inhibit_completion=1;
1023 #endif
1024                 linphonec_prompt_for_auth_final(opm);
1025 #ifdef HAVE_READLINE
1026                 rl_inhibit_completion=0;
1027 #endif
1028         }
1029
1030 #ifdef VIDEO_ENABLED
1031         lpc_apply_video_params();
1032 #endif
1033
1034         return 0;
1035 }
1036
1037 #ifdef HAVE_READLINE
1038 /*
1039  * Use globals:
1040  *
1041  *      - char *histfile_name (also sets this)
1042  *      - char *last_in_history (allocates it)
1043  */
1044 static int
1045 linphonec_initialize_readline()
1046 {
1047         /*rl_bind_key('\t', rl_insert);*/
1048
1049         /* Allow conditional parsing of ~/.inputrc */
1050         rl_readline_name = "linphonec";
1051
1052         /* Call idle_call() every second */
1053         rl_set_keyboard_input_timeout(LPC_READLINE_TIMEOUT);
1054         rl_event_hook=linphonec_idle_call;
1055
1056         /* Set history file and read it */
1057         histfile_name = ms_strdup_printf ("%s/.linphonec_history",
1058                 getenv("HOME"));
1059         read_history(histfile_name);
1060
1061         /* Initialized last_in_history cache*/
1062         last_in_history[0] = '\0';
1063
1064         /* Register a completion function */
1065         rl_attempted_completion_function = linephonec_readline_completion;
1066
1067         /* printf("Readline initialized.\n"); */
1068         setlinebuf(stdout);
1069         return 0;
1070 }
1071
1072 /*
1073  * Uses globals:
1074  *
1075  *      - char *histfile_name (writes history to file and frees it)
1076  *      - char *last_in_history (frees it)
1077  *
1078  */
1079 static int
1080 linphonec_finish_readline()
1081 {
1082
1083         stifle_history(HISTSIZE);
1084         write_history(histfile_name);
1085         free(histfile_name);
1086         histfile_name=NULL;
1087         return 0;
1088 }
1089
1090 #endif
1091
1092 static void print_prompt(LinphoneCore *opm){
1093 #ifdef IDENTITY_AS_PROMPT
1094         snprintf(prompt, PROMPT_MAX_LEN, "%s> ",
1095                 linphone_core_get_primary_contact(opm));
1096 #else
1097         snprintf(prompt, PROMPT_MAX_LEN, "linphonec> ");
1098 #endif
1099 }
1100
1101 static int
1102 linphonec_main_loop (LinphoneCore * opm)
1103 {
1104         char *input;
1105
1106         print_prompt(opm);
1107
1108
1109         while (linphonec_running && (input=linphonec_readline(prompt)))
1110         {
1111                 char *iptr; /* input and input pointer */
1112                 size_t input_len;
1113
1114                 /* Strip blanks */
1115                 iptr=lpc_strip_blanks(input);
1116
1117                 input_len = strlen(iptr);
1118
1119                 /*
1120                  * Do nothing but release memory
1121                  * if only blanks are read
1122                  */
1123                 if ( ! input_len )
1124                 {
1125                         free(input);
1126                         continue;
1127                 }
1128
1129 #ifdef HAVE_READLINE
1130                 /*
1131                  * Only add to history if not already
1132                  * last item in it, and only if the command
1133                  * doesn't start with a space (to allow for
1134                  * hiding passwords)
1135                  */
1136                 if ( iptr == input && strcmp(last_in_history, iptr) )
1137                 {
1138                         strncpy(last_in_history,iptr,sizeof(last_in_history));
1139                         last_in_history[sizeof(last_in_history)-1]='\0';
1140                         add_history(iptr);
1141                 }
1142 #endif
1143
1144                 linphonec_parse_command_line(linphonec, iptr);
1145                 linphonec_command_finished();
1146                 free(input);
1147         }
1148
1149         return 0;
1150 }
1151
1152 /*
1153  *  Parse command line switches
1154  *
1155  *  Use globals:
1156  *
1157  *      - int trace_level
1158  *      - char *logfile_name
1159  *      - char *configfile_name
1160  *      - char *sipAddr
1161  */
1162 static int
1163 linphonec_parse_cmdline(int argc, char **argv)
1164 {
1165         int arg_num=1;
1166
1167         while (arg_num < argc)
1168         {
1169                 int old_arg_num = arg_num;
1170                 if (strncmp ("-d", argv[arg_num], 2) == 0)
1171                 {
1172                         arg_num++;
1173                         if (arg_num < argc)
1174                                 trace_level = atoi (argv[arg_num]);
1175                         else
1176                                 trace_level = 1;
1177                 }
1178                 else if (strncmp ("-l", argv[arg_num], 2) == 0)
1179                 {
1180                         arg_num++;
1181                         if (arg_num < argc)
1182                                 logfile_name = argv[arg_num];
1183                 }
1184                 else if (strncmp ("-c", argv[arg_num], 2) == 0)
1185                 {
1186                         if ( ++arg_num >= argc ) print_usage(EXIT_FAILURE);
1187 #if !defined(_WIN32_WCE)
1188                         if (access(argv[arg_num],F_OK)!=0 )
1189                         {
1190                                 fprintf (stderr,
1191                                         "Cannot open config file %s.\n",
1192                                          argv[arg_num]);
1193                                 exit(EXIT_FAILURE);
1194                         }
1195 #endif /*_WIN32_WCE*/
1196                         snprintf(configfile_name, PATH_MAX, "%s", argv[arg_num]);
1197                 }
1198                 else if (strncmp ("-b", argv[arg_num], 2) == 0)
1199                 {
1200                         if ( ++arg_num >= argc ) print_usage(EXIT_FAILURE);
1201 #if !defined(_WIN32_WCE)
1202                         if (access(argv[arg_num],F_OK)!=0 )
1203                         {
1204                                 fprintf (stderr,
1205                                         "Cannot open config file %s.\n",
1206                                          argv[arg_num]);
1207                                 exit(EXIT_FAILURE);
1208                         }
1209 #endif /*_WIN32_WCE*/
1210                         factory_configfile_name = argv[arg_num];
1211                 }
1212                 else if (strncmp ("-s", argv[arg_num], 2) == 0)
1213                 {
1214                         arg_num++;
1215                         if (arg_num < argc)
1216                                 sip_addr_to_call = argv[arg_num];
1217                 }
1218                 else if (strncmp ("-a", argv[arg_num], 2) == 0)
1219                 {
1220                         auto_answer = TRUE;
1221                 }
1222                 else if (strncmp ("-C", argv[arg_num], 2) == 0)
1223                 {
1224                         vcap_enabled = TRUE;
1225                 }
1226                 else if (strncmp ("-D", argv[arg_num], 2) == 0)
1227                 {
1228                         display_enabled = TRUE;
1229                 }
1230                 else if (strncmp ("-V", argv[arg_num], 2) == 0)
1231                 {
1232                         display_enabled = TRUE;
1233                         vcap_enabled = TRUE;
1234                         preview_enabled=TRUE;
1235                 }
1236                 else if ((strncmp ("-v", argv[arg_num], 2) == 0)
1237                          ||
1238                          (strncmp
1239                           ("--version", argv[arg_num],
1240                            strlen ("--version")) == 0))
1241                 {
1242 #if !defined(_WIN32_WCE)
1243                         printf ("version: " LINPHONE_VERSION "\n");
1244 #endif
1245                         exit (EXIT_SUCCESS);
1246                 }
1247                 else if (strncmp ("-S", argv[arg_num], 2) == 0)
1248                 {
1249                         show_general_state = TRUE;
1250                 }
1251                 else if (strncmp ("--pipe", argv[arg_num], 6) == 0)
1252                 {
1253                         unix_socket=1;
1254                 }
1255                 else if (strncmp ("--wid", argv[arg_num], 5) == 0)
1256                 {
1257                         arg_num++;
1258                         if (arg_num < argc) {
1259                                 char *tmp;
1260                                 window_id = strtol( argv[arg_num], &tmp, 0 );
1261                         }
1262                 }
1263                 else if (old_arg_num == arg_num)
1264                 {
1265                         fprintf (stderr, "ERROR: bad arguments\n");
1266                         print_usage (EXIT_FAILURE);
1267                 }
1268                 arg_num++;
1269         }
1270
1271         return 1;
1272 }
1273
1274 /*
1275  * Up to version 1.2.1 linphone used ~/.linphonec for
1276  * CLI and ~/.gnome2/linphone for GUI as configuration file.
1277  * In newer version both interfaces will use ~/.linphonerc.
1278  *
1279  * This function helps transparently migrating from one
1280  * to the other layout using the following heuristic:
1281  *
1282  *      IF new_config EXISTS => do nothing
1283  *      ELSE IF old_cli_config EXISTS => copy to new_config
1284  *      ELSE IF old_gui_config EXISTS => copy to new_config
1285  *
1286  * Returns:
1287  *       0 if it did nothing
1288  *       1 if it migrated successfully
1289  *      -1 on error
1290  */
1291 static int
1292 handle_configfile_migration()
1293 {
1294 #if !defined(_WIN32_WCE)
1295         char *old_cfg_gui;
1296         char *old_cfg_cli;
1297         char *new_cfg;
1298 #if !defined(_WIN32_WCE)
1299         const char *home = getenv("HOME");
1300 #else
1301         const char *home = ".";
1302 #endif /*_WIN32_WCE*/
1303         new_cfg = ms_strdup_printf("%s/.linphonerc", home);
1304
1305         /*
1306          * If the *NEW* configuration already exists
1307          * do nothing.
1308          */
1309         if (access(new_cfg,F_OK)==0)
1310         {
1311                 free(new_cfg);
1312                 return 0;
1313         }
1314
1315         old_cfg_cli = ms_strdup_printf("%s/.linphonec", home);
1316
1317         /*
1318          * If the *OLD* CLI configurations exist copy it to
1319          * the new file and make it a symlink.
1320          */
1321         if (access(old_cfg_cli, F_OK)==0)
1322         {
1323                 if ( ! copy_file(old_cfg_cli, new_cfg) )
1324                 {
1325                         free(old_cfg_cli);
1326                         free(new_cfg);
1327                         return -1;
1328                 }
1329                 printf("%s copied to %s\n", old_cfg_cli, new_cfg);
1330                 free(old_cfg_cli);
1331                 free(new_cfg);
1332                 return 1;
1333         }
1334
1335         free(old_cfg_cli);
1336         old_cfg_gui = ms_strdup_printf("%s/.gnome2/linphone", home);
1337
1338         /*
1339          * If the *OLD* GUI configurations exist copy it to
1340          * the new file and make it a symlink.
1341          */
1342         if (access(old_cfg_gui, F_OK)==0)
1343         {
1344                 if ( ! copy_file(old_cfg_gui, new_cfg) )
1345                 {
1346                         exit(EXIT_FAILURE);
1347                         free(old_cfg_gui);
1348                         free(new_cfg);
1349                         return -1;
1350                 }
1351                 printf("%s copied to %s\n", old_cfg_gui, new_cfg);
1352                 free(old_cfg_gui);
1353                 free(new_cfg);
1354                 return 1;
1355         }
1356
1357         free(old_cfg_gui);
1358         free(new_cfg);
1359 #endif /*_WIN32_WCE*/
1360         return 0;
1361 }
1362 #if !defined(_WIN32_WCE)
1363 /*
1364  * Copy file "from" to file "to".
1365  * Destination file is truncated if existing.
1366  * Return 1 on success, 0 on error (printing an error).
1367  */
1368 static int
1369 copy_file(const char *from, const char *to)
1370 {
1371         char message[256];
1372         FILE *in, *out;
1373         char buf[256];
1374         size_t n;
1375
1376         /* Open "from" file for reading */
1377         in=fopen(from, "r");
1378         if ( in == NULL )
1379         {
1380                 snprintf(message, 255, "Can't open %s for reading: %s\n",
1381                         from, strerror(errno));
1382                 fprintf(stderr, "%s", message);
1383                 return 0;
1384         }
1385
1386         /* Open "to" file for writing (will truncate existing files) */
1387         out=fopen(to, "w");
1388         if ( out == NULL )
1389         {
1390                 snprintf(message, 255, "Can't open %s for writing: %s\n",
1391                         to, strerror(errno));
1392                 fprintf(stderr, "%s", message);
1393                 return 0;
1394         }
1395
1396         /* Copy data from "in" to "out" */
1397         while ( (n=fread(buf, 1, sizeof buf, in)) > 0 )
1398         {
1399                 if ( ! fwrite(buf, 1, n, out) )
1400                 {
1401                         return 0;
1402                 }
1403         }
1404
1405         fclose(in);
1406         fclose(out);
1407
1408         return 1;
1409 }
1410 #endif /*_WIN32_WCE*/
1411
1412 #ifdef HAVE_READLINE
1413 static char **
1414 linephonec_readline_completion(const char *text, int start, int end)
1415 {
1416         char **matches = NULL;
1417
1418         /*
1419          * Prevent readline from falling
1420          * back to filename-completion
1421          */
1422         rl_attempted_completion_over=1;
1423
1424         /*
1425          * If this is the start of line we complete with commands
1426          */
1427         if ( ! start )
1428         {
1429                 return rl_completion_matches(text, linphonec_command_generator);
1430         }
1431
1432         /*
1433          * Otherwise, we should peek at command name
1434          * or context to implement a smart completion.
1435          * For example: "call .." could return
1436          * friends' sip-uri as matches
1437          */
1438
1439         return matches;
1440 }
1441
1442 #endif
1443
1444 /*
1445  * Strip blanks from a string.
1446  * Return a pointer into the provided string.
1447  * Modifies input adding a NULL at first
1448  * of trailing blanks.
1449  */
1450 char *
1451 lpc_strip_blanks(char *input)
1452 {
1453         char *iptr;
1454
1455         /* Find first non-blank */
1456         while(*input && isspace(*input)) ++input;
1457
1458         /* Find last non-blank */
1459         iptr=input+strlen(input);
1460         if (iptr > input) {
1461                 while(isspace(*--iptr));
1462                 *(iptr+1)='\0';
1463         }
1464
1465         return input;
1466 }
1467
1468 /****************************************************************************
1469  *
1470  * $Log: linphonec.c,v $
1471  * Revision 1.57  2007/11/14 13:40:27  smorlat
1472  * fix --disable-video build.
1473  *
1474  * Revision 1.56  2007/09/26 14:07:27  fixkowalski
1475  * - ANSI/C++ compilation issues with non-GCC compilers
1476  * - Faster epm-based packaging
1477  * - Ability to build & run on FC6's eXosip/osip
1478  *
1479  * Revision 1.55  2007/09/24 16:01:58  smorlat
1480  * fix bugs.
1481  *
1482  * Revision 1.54  2007/08/22 14:06:11  smorlat
1483  * authentication bugs fixed.
1484  *
1485  * Revision 1.53  2007/02/13 21:31:01  smorlat
1486  * added patch for general state.
1487  * new doxygen for oRTP
1488  * gtk-doc removed.
1489  *
1490  * Revision 1.52  2007/01/10 14:11:24  smorlat
1491  * add --video to linphonec.
1492  *
1493  * Revision 1.51  2006/08/21 12:49:59  smorlat
1494  * merged several little patches.
1495  *
1496  * Revision 1.50  2006/07/26 08:17:28  smorlat
1497  * fix bugs.
1498  *
1499  * Revision 1.49  2006/07/17 18:45:00  smorlat
1500  * support for several event queues in ortp.
1501  * glib dependency removed from coreapi/ and console/
1502  *
1503  * Revision 1.48  2006/04/09 12:45:32  smorlat
1504  * linphonec improvements.
1505  *
1506  * Revision 1.47  2006/04/04 08:04:34  smorlat
1507  * switched to mediastreamer2, most bugs fixed.
1508  *
1509  * Revision 1.46  2006/03/16 17:17:40  smorlat
1510  * fix various bugs.
1511  *
1512  * Revision 1.45  2006/03/12 21:48:31  smorlat
1513  * gcc-2.95 compile error fixed.
1514  * mediastreamer2 in progress
1515  *
1516  * Revision 1.44  2006/03/04 11:17:10  smorlat
1517  * mediastreamer2 in progress.
1518  *
1519  * Revision 1.43  2006/02/13 09:50:50  strk
1520  * fixed unused variable warning.
1521  *
1522  * Revision 1.42  2006/02/02 15:39:18  strk
1523  * - Added 'friend list' and 'friend call' commands
1524  * - Allowed for multiple DTFM send in a single line
1525  * - Added status-specific callback (bare version)
1526  *
1527  * Revision 1.41  2006/02/02 13:30:05  strk
1528  * - Padded vtable with missing callbacks
1529  *   (fixing a segfault on friends subscription)
1530  * - Handled friends notify (bare version)
1531  * - Handled text messages receive (bare version)
1532  * - Printed message on subscription request (bare version)
1533  *
1534  * Revision 1.40  2006/01/26 09:48:05  strk
1535  * Added limits.h include
1536  *
1537  * Revision 1.39  2006/01/26 02:11:01  strk
1538  * Removed unused variables, fixed copyright date
1539  *
1540  * Revision 1.38  2006/01/25 18:33:02  strk
1541  * Removed the -t swich, terminate_on_close made the default behaviour
1542  *
1543  * Revision 1.37  2006/01/20 14:12:34  strk
1544  * Added linphonec_init() and linphonec_finish() functions.
1545  * Handled SIGINT and SIGTERM to invoke linphonec_finish().
1546  * Handling of auto-termination (-t) moved to linphonec_finish().
1547  * Reworked main (input read) loop to not rely on 'terminate'
1548  * and 'run' variable (dropped). configfile_name allocated on stack
1549  * using PATH_MAX limit. Changed print_usage signature to allow
1550  * for an exit_status specification.
1551  *
1552  * Revision 1.36  2006/01/18 09:25:32  strk
1553  * Command completion inhibited in proxy addition and auth request prompts.
1554  * Avoided use of readline's internal filename completion.
1555  *
1556  * Revision 1.35  2006/01/14 13:29:32  strk
1557  * Reworked commands interface to use a table structure,
1558  * used by command line parser and help function.
1559  * Implemented first level of completion (commands).
1560  * Added notification of invalid "answer" and "terminate"
1561  * commands (no incoming call, no active call).
1562  * Forbidden "call" intialization when a call is already active.
1563  * Cleaned up all commands, adding more feedback and error checks.
1564  *
1565  * Revision 1.34  2006/01/13 13:00:29  strk
1566  * Added linphonec.h. Code layout change (added comments, forward decl,
1567  * globals on top, copyright notices and Logs). Handled out-of-memory
1568  * condition on history management. Removed assumption on sizeof(char).
1569  * Fixed bug in authentication prompt (introduced by readline).
1570  * Added support for multiple authentication requests (up to MAX_PENDING_AUTH).
1571  *
1572  *
1573  ****************************************************************************/
1574