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