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