1 /*****************************************************************************
2 * rpn.c : RPN evaluator for the HTTP Interface
3 *****************************************************************************
4 * Copyright (C) 2001-2006 the VideoLAN team
7 * Authors: Gildas Bazin <gbazin@netcourrier.com>
8 * Laurent Aimar <fenrir@via.ecp.fr>
9 * Christophe Massiot <massiot@via.ecp.fr>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
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.
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
29 static vlc_object_t *GetVLCObject( intf_thread_t *p_intf,
30 const char *psz_object,
31 vlc_bool_t *pb_need_release )
33 intf_sys_t *p_sys = p_intf->p_sys;
34 int i_object_type = 0;
35 vlc_object_t *p_object = NULL;
36 *pb_need_release = VLC_FALSE;
38 if( !strcmp( psz_object, "VLC_OBJECT_ROOT" ) )
39 i_object_type = VLC_OBJECT_ROOT;
40 else if( !strcmp( psz_object, "VLC_OBJECT_VLC" ) )
41 p_object = VLC_OBJECT(p_intf->p_vlc);
42 else if( !strcmp( psz_object, "VLC_OBJECT_INTF" ) )
43 p_object = VLC_OBJECT(p_intf);
44 else if( !strcmp( psz_object, "VLC_OBJECT_PLAYLIST" ) )
45 p_object = VLC_OBJECT(p_sys->p_playlist);
46 else if( !strcmp( psz_object, "VLC_OBJECT_INPUT" ) )
47 p_object = VLC_OBJECT(p_sys->p_input);
48 else if( !strcmp( psz_object, "VLC_OBJECT_VOUT" ) )
49 i_object_type = VLC_OBJECT_VOUT;
50 else if( !strcmp( psz_object, "VLC_OBJECT_AOUT" ) )
51 i_object_type = VLC_OBJECT_AOUT;
52 else if( !strcmp( psz_object, "VLC_OBJECT_SOUT" ) )
53 i_object_type = VLC_OBJECT_SOUT;
55 msg_Warn( p_intf, "unknown object type (%s)", psz_object );
57 if( p_object == NULL && i_object_type )
59 *pb_need_release = VLC_TRUE;
60 p_object = vlc_object_find( p_intf, i_object_type, FIND_ANYWHERE );
66 void E_(SSInit)( rpn_stack_t *st )
71 void E_(SSClean)( rpn_stack_t *st )
73 while( st->i_stack > 0 )
75 free( st->stack[--st->i_stack] );
79 void E_(SSPush)( rpn_stack_t *st, const char *s )
81 if( st->i_stack < STACK_MAX )
83 st->stack[st->i_stack++] = strdup( s );
87 char *E_(SSPop)( rpn_stack_t *st )
89 if( st->i_stack <= 0 )
95 return st->stack[--st->i_stack];
99 int E_(SSPopN)( rpn_stack_t *st, mvar_t *vars )
107 name = E_(SSPop)( st );
108 i = strtol( name, &end, 0 );
111 value = E_(mvar_GetValue)( vars, name );
119 void E_(SSPushN)( rpn_stack_t *st, int i )
123 sprintf( v, "%d", i );
127 void E_(EvaluateRPN)( intf_thread_t *p_intf, mvar_t *vars,
128 rpn_stack_t *st, char *exp )
130 intf_sys_t *p_sys = p_intf->p_sys;
132 while( exp != NULL && *exp != '\0' )
145 p = E_(FirstWord)( exp, exp );
146 E_(SSPush)( st, exp );
152 p = E_(FirstWord)( exp, exp );
156 exp += strlen( exp );
168 /* 1. Integer function */
169 if( !strcmp( s, "!" ) )
171 E_(SSPushN)( st, ~E_(SSPopN)( st, vars ) );
173 else if( !strcmp( s, "^" ) )
175 E_(SSPushN)( st, E_(SSPopN)( st, vars ) ^ E_(SSPopN)( st, vars ) );
177 else if( !strcmp( s, "&" ) )
179 E_(SSPushN)( st, E_(SSPopN)( st, vars ) & E_(SSPopN)( st, vars ) );
181 else if( !strcmp( s, "|" ) )
183 E_(SSPushN)( st, E_(SSPopN)( st, vars ) | E_(SSPopN)( st, vars ) );
185 else if( !strcmp( s, "+" ) )
187 E_(SSPushN)( st, E_(SSPopN)( st, vars ) + E_(SSPopN)( st, vars ) );
189 else if( !strcmp( s, "-" ) )
191 int j = E_(SSPopN)( st, vars );
192 int i = E_(SSPopN)( st, vars );
193 E_(SSPushN)( st, i - j );
195 else if( !strcmp( s, "*" ) )
197 E_(SSPushN)( st, E_(SSPopN)( st, vars ) * E_(SSPopN)( st, vars ) );
199 else if( !strcmp( s, "/" ) )
203 j = E_(SSPopN)( st, vars );
204 i = E_(SSPopN)( st, vars );
206 E_(SSPushN)( st, j != 0 ? i / j : 0 );
208 else if( !strcmp( s, "%" ) )
212 j = E_(SSPopN)( st, vars );
213 i = E_(SSPopN)( st, vars );
215 E_(SSPushN)( st, j != 0 ? i % j : 0 );
217 /* 2. integer tests */
218 else if( !strcmp( s, "=" ) )
220 E_(SSPushN)( st, E_(SSPopN)( st, vars ) == E_(SSPopN)( st, vars ) ? -1 : 0 );
222 else if( !strcmp( s, "!=" ) )
224 E_(SSPushN)( st, E_(SSPopN)( st, vars ) != E_(SSPopN)( st, vars ) ? -1 : 0 );
226 else if( !strcmp( s, "<" ) )
228 int j = E_(SSPopN)( st, vars );
229 int i = E_(SSPopN)( st, vars );
231 E_(SSPushN)( st, i < j ? -1 : 0 );
233 else if( !strcmp( s, ">" ) )
235 int j = E_(SSPopN)( st, vars );
236 int i = E_(SSPopN)( st, vars );
238 E_(SSPushN)( st, i > j ? -1 : 0 );
240 else if( !strcmp( s, "<=" ) )
242 int j = E_(SSPopN)( st, vars );
243 int i = E_(SSPopN)( st, vars );
245 E_(SSPushN)( st, i <= j ? -1 : 0 );
247 else if( !strcmp( s, ">=" ) )
249 int j = E_(SSPopN)( st, vars );
250 int i = E_(SSPopN)( st, vars );
252 E_(SSPushN)( st, i >= j ? -1 : 0 );
254 /* 3. string functions */
255 else if( !strcmp( s, "strcat" ) )
257 char *s2 = E_(SSPop)( st );
258 char *s1 = E_(SSPop)( st );
259 char *str = malloc( strlen( s1 ) + strlen( s2 ) + 1 );
264 E_(SSPush)( st, str );
269 else if( !strcmp( s, "strcmp" ) )
271 char *s2 = E_(SSPop)( st );
272 char *s1 = E_(SSPop)( st );
274 E_(SSPushN)( st, strcmp( s1, s2 ) );
278 else if( !strcmp( s, "strncmp" ) )
280 int n = E_(SSPopN)( st, vars );
281 char *s2 = E_(SSPop)( st );
282 char *s1 = E_(SSPop)( st );
284 E_(SSPushN)( st, strncmp( s1, s2 , n ) );
288 else if( !strcmp( s, "strsub" ) )
290 int n = E_(SSPopN)( st, vars );
291 int m = E_(SSPopN)( st, vars );
293 char *s = E_(SSPop)( st );
305 str = malloc( i_len + 1 );
307 memcpy( str, s + m - 1, i_len );
310 E_(SSPush)( st, str );
314 else if( !strcmp( s, "strlen" ) )
316 char *str = E_(SSPop)( st );
318 E_(SSPushN)( st, strlen( str ) );
321 else if( !strcmp( s, "str_replace" ) )
323 char *psz_to = E_(SSPop)( st );
324 char *psz_from = E_(SSPop)( st );
325 char *psz_in = E_(SSPop)( st );
326 char *psz_in_current = psz_in;
327 char *psz_out = malloc( strlen(psz_in) * strlen(psz_to) + 1 );
328 char *psz_out_current = psz_out;
330 while( (p = strstr( psz_in_current, psz_from )) != NULL )
332 memcpy( psz_out_current, psz_in_current, p - psz_in_current );
333 psz_out_current += p - psz_in_current;
334 strcpy( psz_out_current, psz_to );
335 psz_out_current += strlen(psz_to);
336 psz_in_current = p + strlen(psz_from);
338 strcpy( psz_out_current, psz_in_current );
339 psz_out_current += strlen(psz_in_current);
340 *psz_out_current = '\0';
342 E_(SSPush)( st, psz_out );
348 else if( !strcmp( s, "url_extract" ) )
350 char *url = E_(mvar_GetValue)( vars, "url_value" );
351 char *name = E_(SSPop)( st );
355 E_(ExtractURIValue)( url, name, value, 512 );
356 E_(DecodeEncodedURI)( value );
357 tmp = E_(FromUTF8)( p_intf, value );
358 E_(SSPush)( st, tmp );
362 else if( !strcmp( s, "url_encode" ) )
364 char *url = E_(SSPop)( st );
367 value = E_(ToUTF8)( p_intf, url );
370 value = vlc_UrlEncode( url );
372 E_(SSPush)( st, value );
375 else if( !strcmp( s, "addslashes" ) )
377 char *psz_src = E_(SSPop)( st );
381 p = psz_dest = malloc( strlen( str ) * 2 + 1 );
383 while( *str != '\0' )
385 if( *str == '"' || *str == '\'' || *str == '\\' )
394 E_(SSPush)( st, psz_dest );
398 else if( !strcmp( s, "stripslashes" ) )
400 char *psz_src = E_(SSPop)( st );
403 p = psz_dest = strdup( psz_src );
407 if( *psz_src == '\\' && *(psz_src + 1) )
415 E_(SSPush)( st, psz_dest );
419 else if( !strcmp( s, "htmlspecialchars" ) )
421 char *psz_src = E_(SSPop)( st );
424 psz_dest = convert_xml_special_chars( psz_src );
426 E_(SSPush)( st, psz_dest );
430 else if( !strcmp( s, "realpath" ) )
432 char *psz_src = E_(SSPop)( st );
433 char *psz_dir = E_(RealPath)( p_intf, psz_src );
435 E_(SSPush)( st, psz_dir );
439 /* 4. stack functions */
440 else if( !strcmp( s, "dup" ) )
442 char *str = E_(SSPop)( st );
443 E_(SSPush)( st, str );
444 E_(SSPush)( st, str );
447 else if( !strcmp( s, "drop" ) )
449 char *str = E_(SSPop)( st );
452 else if( !strcmp( s, "swap" ) )
454 char *s1 = E_(SSPop)( st );
455 char *s2 = E_(SSPop)( st );
457 E_(SSPush)( st, s1 );
458 E_(SSPush)( st, s2 );
462 else if( !strcmp( s, "flush" ) )
467 else if( !strcmp( s, "store" ) )
469 char *value = E_(SSPop)( st );
470 char *name = E_(SSPop)( st );
472 E_(mvar_PushNewVar)( vars, name, value );
476 else if( !strcmp( s, "value" ) )
478 char *name = E_(SSPop)( st );
479 char *value = E_(mvar_GetValue)( vars, name );
481 E_(SSPush)( st, value );
485 /* 5. player control */
486 else if( !strcmp( s, "vlc_play" ) )
488 int i_id = E_(SSPopN)( st, vars );
491 i_ret = playlist_Control( p_sys->p_playlist, PLAYLIST_ITEMPLAY,
492 playlist_ItemGetById( p_sys->p_playlist,
494 msg_Dbg( p_intf, "requested playlist item: %i", i_id );
495 E_(SSPushN)( st, i_ret );
497 else if( !strcmp( s, "vlc_stop" ) )
499 playlist_Control( p_sys->p_playlist, PLAYLIST_STOP );
500 msg_Dbg( p_intf, "requested playlist stop" );
502 else if( !strcmp( s, "vlc_pause" ) )
504 playlist_Control( p_sys->p_playlist, PLAYLIST_PAUSE );
505 msg_Dbg( p_intf, "requested playlist pause" );
507 else if( !strcmp( s, "vlc_next" ) )
509 playlist_Control( p_sys->p_playlist, PLAYLIST_SKIP, 1 );
510 msg_Dbg( p_intf, "requested playlist next" );
512 else if( !strcmp( s, "vlc_previous" ) )
514 playlist_Control( p_sys->p_playlist, PLAYLIST_SKIP, -1 );
515 msg_Dbg( p_intf, "requested playlist previous" );
517 else if( !strcmp( s, "vlc_seek" ) )
519 char *psz_value = E_(SSPop)( st );
520 E_(HandleSeek)( p_intf, psz_value );
521 msg_Dbg( p_intf, "requested playlist seek: %s", psz_value );
524 else if( !strcmp( s, "vlc_var_type" )
525 || !strcmp( s, "vlc_config_type" ) )
527 vlc_object_t *p_object;
528 const char *psz_type = NULL;
531 if( !strcmp( s, "vlc_var_type" ) )
533 char *psz_object = E_(SSPop)( st );
534 char *psz_variable = E_(SSPop)( st );
535 vlc_bool_t b_need_release;
537 p_object = GetVLCObject( p_intf, psz_object, &b_need_release );
539 if( p_object != NULL )
540 i_type = var_Type( p_object, psz_variable );
541 free( psz_variable );
543 if( b_need_release && p_object != NULL )
544 vlc_object_release( p_object );
548 char *psz_variable = E_(SSPop)( st );
549 p_object = VLC_OBJECT(p_intf);
550 i_type = config_GetType( p_object, psz_variable );
551 free( psz_variable );
554 if( p_object != NULL )
556 switch( i_type & VLC_VAR_TYPE )
559 psz_type = "VLC_VAR_BOOL";
561 case VLC_VAR_INTEGER:
562 psz_type = "VLC_VAR_INTEGER";
565 psz_type = "VLC_VAR_HOTKEY";
568 psz_type = "VLC_VAR_STRING";
571 psz_type = "VLC_VAR_MODULE";
574 psz_type = "VLC_VAR_FILE";
576 case VLC_VAR_DIRECTORY:
577 psz_type = "VLC_VAR_DIRECTORY";
579 case VLC_VAR_VARIABLE:
580 psz_type = "VLC_VAR_VARIABLE";
583 psz_type = "VLC_VAR_FLOAT";
586 psz_type = "UNDEFINED";
590 psz_type = "INVALID";
592 E_(SSPush)( st, psz_type );
594 else if( !strcmp( s, "vlc_var_set" ) )
596 char *psz_object = E_(SSPop)( st );
597 char *psz_variable = E_(SSPop)( st );
598 vlc_bool_t b_need_release;
600 vlc_object_t *p_object = GetVLCObject( p_intf, psz_object,
603 if( p_object != NULL )
605 vlc_bool_t b_error = VLC_FALSE;
606 char *psz_value = NULL;
610 i_type = var_Type( p_object, psz_variable );
612 switch( i_type & VLC_VAR_TYPE )
615 val.b_bool = E_(SSPopN)( st, vars );
616 msg_Dbg( p_intf, "requested %s var change: %s->%d",
617 psz_object, psz_variable, val.b_bool );
619 case VLC_VAR_INTEGER:
621 val.i_int = E_(SSPopN)( st, vars );
622 msg_Dbg( p_intf, "requested %s var change: %s->%d",
623 psz_object, psz_variable, val.i_int );
628 case VLC_VAR_DIRECTORY:
629 case VLC_VAR_VARIABLE:
630 val.psz_string = psz_value = E_(SSPop)( st );
631 msg_Dbg( p_intf, "requested %s var change: %s->%s",
632 psz_object, psz_variable, psz_value );
635 psz_value = E_(SSPop)( st );
636 val.f_float = atof( psz_value );
637 msg_Dbg( p_intf, "requested %s var change: %s->%f",
638 psz_object, psz_variable, val.f_float );
641 E_(SSPopN)( st, vars );
642 msg_Warn( p_intf, "invalid %s variable type %d (%s)",
643 psz_object, i_type & VLC_VAR_TYPE, psz_variable );
648 var_Set( p_object, psz_variable, val );
649 if( psz_value != NULL )
653 msg_Warn( p_intf, "vlc_var_set called without an object" );
654 free( psz_variable );
657 if( b_need_release && p_object != NULL )
658 vlc_object_release( p_object );
660 else if( !strcmp( s, "vlc_var_get" ) )
662 char *psz_object = E_(SSPop)( st );
663 char *psz_variable = E_(SSPop)( st );
664 vlc_bool_t b_need_release;
666 vlc_object_t *p_object = GetVLCObject( p_intf, psz_object,
669 if( p_object != NULL )
674 i_type = var_Type( p_object, psz_variable );
675 var_Get( p_object, psz_variable, &val );
677 switch( i_type & VLC_VAR_TYPE )
680 E_(SSPushN)( st, val.b_bool );
682 case VLC_VAR_INTEGER:
684 E_(SSPushN)( st, val.i_int );
689 case VLC_VAR_DIRECTORY:
690 case VLC_VAR_VARIABLE:
691 E_(SSPush)( st, val.psz_string );
692 free( val.psz_string );
697 snprintf( psz_value, sizeof(psz_value), "%f", val.f_float );
698 E_(SSPush)( st, psz_value );
702 msg_Warn( p_intf, "invalid %s variable type %d (%s)",
703 psz_object, i_type & VLC_VAR_TYPE, psz_variable );
704 E_(SSPush)( st, "" );
709 msg_Warn( p_intf, "vlc_var_get called without an object" );
710 E_(SSPush)( st, "" );
712 free( psz_variable );
715 if( b_need_release && p_object != NULL )
716 vlc_object_release( p_object );
718 else if( !strcmp( s, "vlc_object_exists" ) )
720 char *psz_object = E_(SSPop)( st );
721 vlc_bool_t b_need_release;
723 vlc_object_t *p_object = GetVLCObject( p_intf, psz_object,
725 if( b_need_release && p_object != NULL )
726 vlc_object_release( p_object );
728 if( p_object != NULL )
729 E_(SSPush)( st, "1" );
731 E_(SSPush)( st, "0" );
733 else if( !strcmp( s, "vlc_config_set" ) )
735 char *psz_variable = E_(SSPop)( st );
736 int i_type = config_GetType( p_intf, psz_variable );
738 switch( i_type & VLC_VAR_TYPE )
741 case VLC_VAR_INTEGER:
742 config_PutInt( p_intf, psz_variable, E_(SSPopN)( st, vars ) );
747 case VLC_VAR_DIRECTORY:
749 char *psz_string = E_(SSPop)( st );
750 config_PutPsz( p_intf, psz_variable, psz_string );
756 char *psz_string = E_(SSPop)( st );
757 config_PutFloat( p_intf, psz_variable, atof(psz_string) );
762 msg_Warn( p_intf, "vlc_config_set called on unknown var (%s)",
765 free( psz_variable );
767 else if( !strcmp( s, "vlc_config_get" ) )
769 char *psz_variable = E_(SSPop)( st );
770 int i_type = config_GetType( p_intf, psz_variable );
772 switch( i_type & VLC_VAR_TYPE )
775 case VLC_VAR_INTEGER:
776 E_(SSPushN)( st, config_GetInt( p_intf, psz_variable ) );
781 case VLC_VAR_DIRECTORY:
783 char *psz_string = config_GetPsz( p_intf, psz_variable );
784 E_(SSPush)( st, psz_string );
791 snprintf( psz_string, sizeof(psz_string), "%f",
792 config_GetFloat( p_intf, psz_variable ) );
793 E_(SSPush)( st, psz_string );
797 msg_Warn( p_intf, "vlc_config_get called on unknown var (%s)",
800 free( psz_variable );
802 else if( !strcmp( s, "vlc_config_save" ) )
804 char *psz_module = E_(SSPop)( st );
812 i_result = config_SaveConfigFile( p_intf, psz_module );
814 if( psz_module != NULL )
816 E_(SSPushN)( st, i_result );
818 else if( !strcmp( s, "vlc_config_reset" ) )
820 config_ResetAll( p_intf );
822 /* 6. playlist functions */
823 else if( !strcmp( s, "playlist_add" ) )
825 char *psz_name = E_(SSPop)( st );
826 char *mrl = E_(SSPop)( st );
828 playlist_item_t *p_item;
831 tmp = E_(ToUTF8)( p_intf, psz_name );
834 tmp = E_(ToUTF8)( p_intf, mrl );
840 p_item = E_(MRLParse)( p_intf, mrl, mrl );
844 p_item = E_(MRLParse)( p_intf, mrl, psz_name );
847 if( p_item == NULL || p_item->input.psz_uri == NULL ||
848 !*p_item->input.psz_uri )
851 msg_Dbg( p_intf, "invalid requested mrl: %s", mrl );
855 i_id = playlist_AddItem( p_sys->p_playlist, p_item,
856 PLAYLIST_APPEND, PLAYLIST_END );
857 msg_Dbg( p_intf, "requested mrl add: %s", mrl );
859 E_(SSPushN)( st, i_id );
864 else if( !strcmp( s, "playlist_empty" ) )
866 playlist_LockClear( p_sys->p_playlist );
867 msg_Dbg( p_intf, "requested playlist empty" );
869 else if( !strcmp( s, "playlist_delete" ) )
871 int i_id = E_(SSPopN)( st, vars );
872 playlist_LockDelete( p_sys->p_playlist, i_id );
873 msg_Dbg( p_intf, "requested playlist delete: %d", i_id );
875 else if( !strcmp( s, "playlist_move" ) )
877 int i_newpos = E_(SSPopN)( st, vars );
878 int i_pos = E_(SSPopN)( st, vars );
879 if ( i_pos < i_newpos )
881 playlist_Move( p_sys->p_playlist, i_pos, i_newpos + 1 );
885 playlist_Move( p_sys->p_playlist, i_pos, i_newpos );
887 msg_Dbg( p_intf, "requested to move playlist item %d to %d",
890 else if( !strcmp( s, "playlist_sort" ) )
892 int i_order = E_(SSPopN)( st, vars );
893 int i_sort = E_(SSPopN)( st, vars );
894 i_order = i_order % 2;
896 playlist_RecursiveNodeSort( p_sys->p_playlist,
897 p_sys->p_playlist->p_general,
899 msg_Dbg( p_intf, "requested sort playlist by : %d in order : %d",
902 else if( !strcmp( s, "services_discovery_add" ) )
904 char *psz_sd = E_(SSPop)( st );
905 playlist_ServicesDiscoveryAdd( p_sys->p_playlist, psz_sd );
908 else if( !strcmp( s, "services_discovery_remove" ) )
910 char *psz_sd = E_(SSPop)( st );
911 playlist_ServicesDiscoveryRemove( p_sys->p_playlist, psz_sd );
914 else if( !strcmp( s, "services_discovery_is_loaded" ) )
916 char *psz_sd = E_(SSPop)( st );
918 playlist_IsServicesDiscoveryLoaded( p_sys->p_playlist, psz_sd ) );
921 else if( !strcmp( s, "vlc_volume_set" ) )
923 char *psz_vol = E_(SSPop)( st );
925 audio_volume_t i_volume;
926 aout_VolumeGet( p_intf, &i_volume );
927 if( psz_vol[0] == '+' )
929 i_value = atoi( psz_vol );
930 if( (i_volume + i_value) > AOUT_VOLUME_MAX )
931 aout_VolumeSet( p_intf, AOUT_VOLUME_MAX );
933 aout_VolumeSet( p_intf, i_volume + i_value );
935 else if( psz_vol[0] == '-' )
937 i_value = atoi( psz_vol );
938 if( (i_volume + i_value) < AOUT_VOLUME_MIN )
939 aout_VolumeSet( p_intf, AOUT_VOLUME_MIN );
941 aout_VolumeSet( p_intf, i_volume + i_value );
943 else if( strstr( psz_vol, "%") != NULL )
945 i_value = atoi( psz_vol );
946 if( i_value < 0 ) i_value = 0;
947 if( i_value > 400 ) i_value = 400;
948 aout_VolumeSet( p_intf, (i_value * (AOUT_VOLUME_MAX - AOUT_VOLUME_MIN))/400+AOUT_VOLUME_MIN);
952 i_value = atoi( psz_vol );
953 if( i_value > AOUT_VOLUME_MAX ) i_value = AOUT_VOLUME_MAX;
954 if( i_value < AOUT_VOLUME_MIN ) i_value = AOUT_VOLUME_MIN;
955 aout_VolumeSet( p_intf, i_value );
957 aout_VolumeGet( p_intf, &i_volume );
960 else if( !strcmp( s, "vlm_command" ) || !strcmp( s, "vlm_cmd" ) )
963 char *psz_cmd = strdup( "" );
965 vlm_message_t *vlm_answer;
967 /* make sure that we have a vlm object */
968 if( p_intf->p_sys->p_vlm == NULL )
969 p_intf->p_sys->p_vlm = vlm_New( p_intf );
972 /* vlm command uses the ';' delimiter
973 * (else we can't know when to stop) */
974 while( strcmp( psz_elt = E_(SSPop)( st ), "" )
975 && strcmp( psz_elt, ";" ) )
978 (char *)malloc( strlen( psz_cmd ) + strlen( psz_elt ) + 2 );
979 sprintf( psz_buf, "%s %s", psz_cmd, psz_elt );
985 msg_Dbg( p_intf, "executing vlm command: %s", psz_cmd );
986 vlm_ExecuteCommand( p_intf->p_sys->p_vlm, psz_cmd, &vlm_answer );
988 if( vlm_answer->psz_value == NULL )
990 psz_error = strdup( "" );
994 psz_error = malloc( strlen(vlm_answer->psz_name) +
995 strlen(vlm_answer->psz_value) +
996 strlen( " : ") + 1 );
997 sprintf( psz_error , "%s : %s" , vlm_answer->psz_name,
998 vlm_answer->psz_value );
1001 E_(mvar_AppendNewVar)( vars, "vlm_error", psz_error );
1002 /* this is kind of a duplicate but we need to have the message
1003 * without the command name for the "export" command */
1004 E_(mvar_AppendNewVar)( vars, "vlm_value", vlm_answer->psz_value );
1005 vlm_MessageDelete( vlm_answer );
1012 E_(SSPush)( st, s );