1 /*****************************************************************************
2 * configuration.c management of the modules configuration
3 *****************************************************************************
4 * Copyright (C) 2001 VideoLAN
5 * $Id: configuration.c,v 1.28 2002/06/01 18:04:49 sam Exp $
7 * Authors: Gildas Bazin <gbazin@netcourrier.com>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
26 #include <stdio.h> /* sprintf() */
27 #include <stdlib.h> /* free(), strtol() */
28 #include <string.h> /* strdup() */
29 #include <errno.h> /* errno */
32 # include <unistd.h> /* getuid() */
35 #ifdef HAVE_GETOPT_LONG
37 # include <getopt.h> /* getopt() */
40 # include "GNUgetopt/getopt.h"
43 #if defined(HAVE_GETPWUID)
44 #include <pwd.h> /* getpwuid() */
48 #include <sys/types.h>
50 /*****************************************************************************
51 * config_GetInt: get the value of an int variable
52 *****************************************************************************
53 * This function is used to get the value of variables which are internally
54 * represented by an integer (MODULE_CONFIG_ITEM_INTEGER and
55 * MODULE_CONFIG_ITEM_BOOL).
56 *****************************************************************************/
57 int __config_GetInt( vlc_object_t *p_this, const char *psz_name )
59 module_config_t *p_config;
61 p_config = config_FindConfig( p_this, psz_name );
66 msg_Err( p_this, "option %s does not exist", psz_name );
69 if( (p_config->i_type!=MODULE_CONFIG_ITEM_INTEGER) &&
70 (p_config->i_type!=MODULE_CONFIG_ITEM_BOOL) )
72 msg_Err( p_this, "option %s does not refer to an int", psz_name );
76 return p_config->i_value;
79 /*****************************************************************************
80 * config_GetFloat: get the value of a float variable
81 *****************************************************************************
82 * This function is used to get the value of variables which are internally
83 * represented by a float (MODULE_CONFIG_ITEM_FLOAT).
84 *****************************************************************************/
85 float __config_GetFloat( vlc_object_t *p_this, const char *psz_name )
87 module_config_t *p_config;
89 p_config = config_FindConfig( p_this, psz_name );
94 msg_Err( p_this, "option %s does not exist", psz_name );
97 if( p_config->i_type != MODULE_CONFIG_ITEM_FLOAT )
99 msg_Err( p_this, "option %s does not refer to a float", psz_name );
103 return p_config->f_value;
106 /*****************************************************************************
107 * config_GetPsz: get the string value of a string variable
108 *****************************************************************************
109 * This function is used to get the value of variables which are internally
110 * represented by a string (MODULE_CONFIG_ITEM_STRING, MODULE_CONFIG_ITEM_FILE,
111 * and MODULE_CONFIG_ITEM_MODULE).
113 * Important note: remember to free() the returned char* because it a duplicate
114 * of the actual value. It isn't safe to return a pointer to the actual value
115 * as it can be modified at any time.
116 *****************************************************************************/
117 char * __config_GetPsz( vlc_object_t *p_this, const char *psz_name )
119 module_config_t *p_config;
120 char *psz_value = NULL;
122 p_config = config_FindConfig( p_this, psz_name );
127 msg_Err( p_this, "option %s does not exist", psz_name );
130 if( (p_config->i_type!=MODULE_CONFIG_ITEM_STRING) &&
131 (p_config->i_type!=MODULE_CONFIG_ITEM_FILE) &&
132 (p_config->i_type!=MODULE_CONFIG_ITEM_MODULE) )
134 msg_Err( p_this, "option %s does not refer to a string", psz_name );
138 /* return a copy of the string */
139 vlc_mutex_lock( p_config->p_lock );
140 if( p_config->psz_value ) psz_value = strdup( p_config->psz_value );
141 vlc_mutex_unlock( p_config->p_lock );
146 /*****************************************************************************
147 * config_PutPsz: set the string value of a string variable
148 *****************************************************************************
149 * This function is used to set the value of variables which are internally
150 * represented by a string (MODULE_CONFIG_ITEM_STRING, MODULE_CONFIG_ITEM_FILE,
151 * and MODULE_CONFIG_ITEM_MODULE).
152 *****************************************************************************/
153 void __config_PutPsz( vlc_object_t *p_this,
154 const char *psz_name, char *psz_value )
156 module_config_t *p_config;
158 p_config = config_FindConfig( p_this, psz_name );
163 msg_Err( p_this, "option %s does not exist", psz_name );
166 if( (p_config->i_type!=MODULE_CONFIG_ITEM_STRING) &&
167 (p_config->i_type!=MODULE_CONFIG_ITEM_FILE) &&
168 (p_config->i_type!=MODULE_CONFIG_ITEM_MODULE) )
170 msg_Err( p_this, "option %s does not refer to a string", psz_name );
174 vlc_mutex_lock( p_config->p_lock );
176 /* free old string */
177 if( p_config->psz_value ) free( p_config->psz_value );
179 if( psz_value ) p_config->psz_value = strdup( psz_value );
180 else p_config->psz_value = NULL;
182 vlc_mutex_unlock( p_config->p_lock );
184 if( p_config->pf_callback )
186 p_config->pf_callback( p_this );
190 /*****************************************************************************
191 * config_PutInt: set the integer value of an int variable
192 *****************************************************************************
193 * This function is used to set the value of variables which are internally
194 * represented by an integer (MODULE_CONFIG_ITEM_INTEGER and
195 * MODULE_CONFIG_ITEM_BOOL).
196 *****************************************************************************/
197 void __config_PutInt( vlc_object_t *p_this, const char *psz_name, int i_value )
199 module_config_t *p_config;
201 p_config = config_FindConfig( p_this, psz_name );
206 msg_Err( p_this, "option %s does not exist", psz_name );
209 if( (p_config->i_type!=MODULE_CONFIG_ITEM_INTEGER) &&
210 (p_config->i_type!=MODULE_CONFIG_ITEM_BOOL) )
212 msg_Err( p_this, "option %s does not refer to an int", psz_name );
216 p_config->i_value = i_value;
218 if( p_config->pf_callback )
220 p_config->pf_callback( p_this );
224 /*****************************************************************************
225 * config_PutFloat: set the value of a float variable
226 *****************************************************************************
227 * This function is used to set the value of variables which are internally
228 * represented by a float (MODULE_CONFIG_ITEM_FLOAT).
229 *****************************************************************************/
230 void __config_PutFloat( vlc_object_t *p_this,
231 const char *psz_name, float f_value )
233 module_config_t *p_config;
235 p_config = config_FindConfig( p_this, psz_name );
240 msg_Err( p_this, "option %s does not exist", psz_name );
243 if( p_config->i_type != MODULE_CONFIG_ITEM_FLOAT )
245 msg_Err( p_this, "option %s does not refer to a float", psz_name );
249 p_config->f_value = f_value;
251 if( p_config->pf_callback )
253 p_config->pf_callback( p_this );
257 /*****************************************************************************
258 * config_FindConfig: find the config structure associated with an option.
259 *****************************************************************************
260 * FIXME: This function really needs to be optimized.
261 *****************************************************************************/
262 module_config_t *config_FindConfig( vlc_object_t *p_this, const char *psz_name )
265 module_config_t *p_item;
267 if( !psz_name ) return NULL;
269 for( p_module = p_this->p_vlc->module_bank.first ;
271 p_module = p_module->next )
273 for( p_item = p_module->p_config;
274 p_item->i_type != MODULE_CONFIG_HINT_END;
277 if( p_item->i_type & MODULE_CONFIG_HINT )
280 if( !strcmp( psz_name, p_item->psz_name ) )
288 /*****************************************************************************
289 * config_Duplicate: creates a duplicate of a module's configuration data.
290 *****************************************************************************
291 * Unfortunatly we cannot work directly with the module's config data as
292 * this module might be unloaded from memory at any time (remember HideModule).
293 * This is why we need to create an exact copy of the config data.
294 *****************************************************************************/
295 void config_Duplicate( module_t *p_module, module_config_t *p_orig )
298 module_config_t *p_item;
300 /* Calculate the structure length */
301 p_module->i_config_items = 0;
302 p_module->i_bool_items = 0;
304 for( p_item = p_orig; p_item->i_type != MODULE_CONFIG_HINT_END; p_item++ )
308 if( p_item->i_type & MODULE_CONFIG_ITEM )
310 p_module->i_config_items++;
313 if( p_item->i_type == MODULE_CONFIG_ITEM_BOOL )
315 p_module->i_bool_items++;
319 /* Allocate memory */
320 p_module->p_config = (module_config_t *)malloc( sizeof(module_config_t)
322 if( p_module->p_config == NULL )
324 msg_Err( p_module, "config error: can't duplicate p_config" );
328 /* Initialize the global lock */
329 vlc_mutex_init( p_module, &p_module->config_lock );
331 /* Do the duplication job */
332 for( i = 0; i < i_lines ; i++ )
334 p_module->p_config[i].i_type = p_orig[i].i_type;
335 p_module->p_config[i].i_short = p_orig[i].i_short;
336 p_module->p_config[i].i_value = p_orig[i].i_value;
337 p_module->p_config[i].f_value = p_orig[i].f_value;
338 p_module->p_config[i].b_dirty = p_orig[i].b_dirty;
340 p_module->p_config[i].psz_name = p_orig[i].psz_name ?
341 strdup( _(p_orig[i].psz_name) ) : NULL;
342 p_module->p_config[i].psz_text = p_orig[i].psz_text ?
343 strdup( _(p_orig[i].psz_text) ) : NULL;
344 p_module->p_config[i].psz_longtext = p_orig[i].psz_longtext ?
345 strdup( _(p_orig[i].psz_longtext) ) : NULL;
346 p_module->p_config[i].psz_value = p_orig[i].psz_value ?
347 strdup( _(p_orig[i].psz_value) ) : NULL;
349 p_module->p_config[i].p_lock = &p_module->config_lock;
351 /* the callback pointer is only valid when the module is loaded so this
352 * value is set in ActivateModule() and reset in DeactivateModule() */
353 p_module->p_config[i].pf_callback = NULL;
357 /*****************************************************************************
358 * config_Free: frees a duplicated module's configuration data.
359 *****************************************************************************
360 * This function frees all the data duplicated by config_Duplicate.
361 *****************************************************************************/
362 void config_Free( module_t *p_module )
364 module_config_t *p_item = p_module->p_config;
366 for( ; p_item->i_type != MODULE_CONFIG_HINT_END ; p_item++ )
368 if( p_item->psz_name )
370 free( p_item->psz_name );
373 if( p_item->psz_text )
375 free( p_item->psz_text );
378 if( p_item->psz_longtext )
380 free( p_item->psz_longtext );
383 if( p_item->psz_value )
385 free( p_item->psz_value );
389 free( p_module->p_config );
390 p_module->p_config = NULL;
392 /* Remove the global lock */
393 vlc_mutex_destroy( &p_module->config_lock );
396 /*****************************************************************************
397 * config_SetCallbacks: sets callback functions in the duplicate p_config.
398 *****************************************************************************
399 * Unfortunatly we cannot work directly with the module's config data as
400 * this module might be unloaded from memory at any time (remember HideModule).
401 * This is why we need to duplicate callbacks each time we reload the module.
402 *****************************************************************************/
403 void config_SetCallbacks( module_config_t *p_new, module_config_t *p_orig )
405 while( p_new->i_type != MODULE_CONFIG_HINT_END )
407 p_new->pf_callback = p_orig->pf_callback;
413 /*****************************************************************************
414 * config_UnsetCallbacks: unsets callback functions in the duplicate p_config.
415 *****************************************************************************
416 * We simply undo what we did in config_SetCallbacks.
417 *****************************************************************************/
418 void config_UnsetCallbacks( module_config_t *p_new )
420 while( p_new->i_type != MODULE_CONFIG_HINT_END )
422 p_new->pf_callback = NULL;
427 /*****************************************************************************
428 * config_LoadConfigFile: loads the configuration file.
429 *****************************************************************************
430 * This function is called to load the config options stored in the config
432 *****************************************************************************/
433 int __config_LoadConfigFile( vlc_object_t *p_this, const char *psz_module_name )
436 module_config_t *p_item;
439 char *p_index, *psz_option_name, *psz_option_value;
440 char *psz_filename, *psz_homedir;
442 /* Acquire config file lock */
443 vlc_mutex_lock( &p_this->p_vlc->config_lock );
445 psz_homedir = p_this->p_vlc->psz_homedir;
448 msg_Err( p_this, "psz_homedir is null" );
449 vlc_mutex_unlock( &p_this->p_vlc->config_lock );
452 psz_filename = (char *)malloc( strlen("/" CONFIG_DIR "/" CONFIG_FILE) +
453 strlen(psz_homedir) + 1 );
456 msg_Err( p_this, "out of memory" );
457 vlc_mutex_unlock( &p_this->p_vlc->config_lock );
460 sprintf( psz_filename, "%s/" CONFIG_DIR "/" CONFIG_FILE, psz_homedir );
462 msg_Dbg( p_this, "opening config file %s", psz_filename );
464 file = fopen( psz_filename, "rt" );
467 msg_Warn( p_this, "config file %s does not exist yet", psz_filename );
468 free( psz_filename );
469 vlc_mutex_unlock( &p_this->p_vlc->config_lock );
473 /* Look for the selected module, if NULL then save everything */
474 for( p_module = p_this->p_vlc->module_bank.first ; p_module != NULL ;
475 p_module = p_module->next )
479 && strcmp( psz_module_name, p_module->psz_object_name ) )
484 /* The config file is organized in sections, one per module. Look for
485 * the interesting section ( a section is of the form [foo] ) */
487 while( fgets( line, 1024, file ) )
489 if( (line[0] == '[') && (p_index = strchr(line,']')) &&
490 (p_index - &line[1] == strlen(p_module->psz_object_name) ) &&
491 !memcmp( &line[1], p_module->psz_object_name,
492 strlen(p_module->psz_object_name) ) )
494 msg_Dbg( p_this, "loading config for module <%s>",
495 p_module->psz_object_name );
500 /* either we found the section or we're at the EOF */
502 /* Now try to load the options in this section */
503 while( fgets( line, 1024, file ) )
505 if( line[0] == '[' ) break; /* end of section */
507 /* ignore comments or empty lines */
508 if( (line[0] == '#') || (line[0] == '\n') || (line[0] == (char)0) )
511 /* get rid of line feed */
512 if( line[strlen(line)-1] == '\n' )
513 line[strlen(line)-1] = (char)0;
515 /* look for option name */
516 psz_option_name = line;
517 psz_option_value = NULL;
518 p_index = strchr( line, '=' );
519 if( !p_index ) break; /* this ain't an option!!! */
522 psz_option_value = p_index + 1;
524 /* try to match this option with one of the module's options */
525 for( p_item = p_module->p_config;
526 p_item->i_type != MODULE_CONFIG_HINT_END;
529 if( p_item->i_type & MODULE_CONFIG_HINT )
533 if( !strcmp( p_item->psz_name, psz_option_name ) )
536 switch( p_item->i_type )
538 case MODULE_CONFIG_ITEM_BOOL:
539 case MODULE_CONFIG_ITEM_INTEGER:
540 if( !*psz_option_value )
541 break; /* ignore empty option */
542 p_item->i_value = atoi( psz_option_value);
543 msg_Dbg( p_this, "found <%s> option %s=%i",
544 p_module->psz_object_name, p_item->psz_name,
548 case MODULE_CONFIG_ITEM_FLOAT:
549 if( !*psz_option_value )
550 break; /* ignore empty option */
551 p_item->f_value = (float)atof( psz_option_value);
552 msg_Dbg( p_this, "found <%s> option %s=%f",
553 p_module->psz_object_name, p_item->psz_name,
554 (double)p_item->f_value );
558 vlc_mutex_lock( p_item->p_lock );
560 /* free old string */
561 if( p_item->psz_value )
562 free( p_item->psz_value );
564 p_item->psz_value = *psz_option_value ?
565 strdup( psz_option_value ) : NULL;
567 vlc_mutex_unlock( p_item->p_lock );
569 msg_Dbg( p_this, "found <%s> option %s=%s",
570 p_module->psz_object_name, p_item->psz_name,
571 p_item->psz_value != NULL ?
572 p_item->psz_value : "(NULL)" );
582 free( psz_filename );
584 vlc_mutex_unlock( &p_this->p_vlc->config_lock );
589 /*****************************************************************************
590 * config_SaveConfigFile: Save a module's config options.
591 *****************************************************************************
592 * This will save the specified module's config options to the config file.
593 * If psz_module_name is NULL then we save all the modules config options.
594 * It's no use to save the config options that kept their default values, so
595 * we'll try to be a bit clever here.
597 * When we save we mustn't delete the config options of the modules that
598 * haven't been loaded. So we cannot just create a new config file with the
599 * config structures we've got in memory.
600 * I don't really know how to deal with this nicely, so I will use a completly
602 * I will load the config file in memory, but skipping all the sections of the
603 * modules we want to save. Then I will create a brand new file, dump the file
604 * loaded in memory and then append the sections of the modules we want to
607 *****************************************************************************/
608 int __config_SaveConfigFile( vlc_object_t *p_this, const char *psz_module_name )
611 module_config_t *p_item;
613 char p_line[1024], *p_index2;
615 char *p_bigbuffer, *p_index;
617 char *psz_filename, *psz_homedir;
619 /* Acquire config file lock */
620 vlc_mutex_lock( &p_this->p_vlc->config_lock );
622 psz_homedir = p_this->p_vlc->psz_homedir;
625 msg_Err( p_this, "psz_homedir is null" );
626 vlc_mutex_unlock( &p_this->p_vlc->config_lock );
629 psz_filename = (char *)malloc( strlen("/" CONFIG_DIR "/" CONFIG_FILE) +
630 strlen(psz_homedir) + 1 );
633 msg_Err( p_this, "out of memory" );
634 vlc_mutex_unlock( &p_this->p_vlc->config_lock );
637 sprintf( psz_filename, "%s/" CONFIG_DIR, psz_homedir );
640 if( mkdir( psz_filename, 0755 ) && errno != EEXIST )
642 if( mkdir( psz_filename ) && errno != EEXIST )
645 msg_Err( p_this, "could not create %s (%s)",
646 psz_filename, strerror(errno) );
649 strcat( psz_filename, "/" CONFIG_FILE );
652 msg_Dbg( p_this, "opening config file %s", psz_filename );
654 file = fopen( psz_filename, "rt" );
657 msg_Warn( p_this, "config file %s does not exist yet", psz_filename );
661 /* look for file size */
662 fseek( file, 0, SEEK_END );
663 i_sizebuf = ftell( file );
667 p_bigbuffer = p_index = malloc( i_sizebuf+1 );
670 msg_Err( p_this, "out of memory" );
671 if( file ) fclose( file );
672 free( psz_filename );
673 vlc_mutex_unlock( &p_this->p_vlc->config_lock );
678 /* backup file into memory, we only need to backup the sections we won't
681 while( file && fgets( p_line, 1024, file ) )
683 if( (p_line[0] == '[') && (p_index2 = strchr(p_line,']')))
685 /* we found a section, check if we need to do a backup */
686 for( p_module = p_this->p_vlc->module_bank.first; p_module != NULL;
687 p_module = p_module->next )
689 if( ((p_index2 - &p_line[1])
690 == strlen(p_module->psz_object_name) ) &&
691 !memcmp( &p_line[1], p_module->psz_object_name,
692 strlen(p_module->psz_object_name) ) )
694 if( !psz_module_name )
696 else if( !strcmp( psz_module_name,
697 p_module->psz_object_name ) )
704 /* we don't have this section in our list so we need to back
707 msg_Dbg( p_this, "backing up config for unknown module <%s>",
719 /* save line if requested and line is valid (doesn't begin with a
720 * space, tab, or eol) */
721 if( b_backup && (p_line[0] != '\n') && (p_line[0] != ' ')
722 && (p_line[0] != '\t') )
724 strcpy( p_index, p_line );
725 p_index += strlen( p_line );
728 if( file ) fclose( file );
732 * Save module config in file
735 file = fopen( psz_filename, "wt" );
738 msg_Warn( p_this, "could not open config file %s for writing",
740 free( psz_filename );
741 vlc_mutex_unlock( &p_this->p_vlc->config_lock );
745 fprintf( file, "###\n### " COPYRIGHT_MESSAGE "\n###\n\n" );
747 /* Look for the selected module, if NULL then save everything */
748 for( p_module = p_this->p_vlc->module_bank.first ; p_module != NULL ;
749 p_module = p_module->next )
752 if( psz_module_name && strcmp( psz_module_name,
753 p_module->psz_object_name ) )
756 if( !p_module->i_config_items )
759 msg_Dbg( p_this, "saving config for module <%s>",
760 p_module->psz_object_name );
762 fprintf( file, "[%s]", p_module->psz_object_name );
763 if( p_module->psz_longname )
764 fprintf( file, " # %s\n\n", p_module->psz_longname );
766 fprintf( file, "\n\n" );
768 for( p_item = p_module->p_config;
769 p_item->i_type != MODULE_CONFIG_HINT_END;
772 if( p_item->i_type & MODULE_CONFIG_HINT )
776 switch( p_item->i_type )
778 case MODULE_CONFIG_ITEM_BOOL:
779 case MODULE_CONFIG_ITEM_INTEGER:
780 if( p_item->psz_text )
781 fprintf( file, "# %s (%s)\n", p_item->psz_text,
782 (p_item->i_type == MODULE_CONFIG_ITEM_BOOL) ?
783 _("boolean") : _("integer") );
784 fprintf( file, "%s=%i\n", p_item->psz_name, p_item->i_value );
787 case MODULE_CONFIG_ITEM_FLOAT:
788 if( p_item->psz_text )
789 fprintf( file, "# %s (%s)\n", p_item->psz_text,
791 fprintf( file, "%s=%f\n", p_item->psz_name,
792 (double)p_item->f_value );
796 if( p_item->psz_text )
797 fprintf( file, "# %s (%s)\n", p_item->psz_text,
799 fprintf( file, "%s=%s\n", p_item->psz_name,
800 p_item->psz_value ? p_item->psz_value : "" );
804 fprintf( file, "\n" );
809 * Restore old settings from the config in file
811 fputs( p_bigbuffer, file );
815 free( psz_filename );
816 vlc_mutex_unlock( &p_this->p_vlc->config_lock );
821 /*****************************************************************************
822 * config_LoadCmdLine: parse command line
823 *****************************************************************************
824 * Parse command line for configuration options.
825 * Now that the module_bank has been initialized, we can dynamically
826 * generate the longopts structure used by getops. We have to do it this way
827 * because we don't know (and don't want to know) in advance the configuration
828 * options used (ie. exported) by each module.
829 *****************************************************************************/
830 int __config_LoadCmdLine( vlc_object_t *p_this, int *pi_argc, char *ppsz_argv[],
831 vlc_bool_t b_ignore_errors )
833 int i_cmd, i_index, i_opts, i_shortopts, flag;
835 module_config_t *p_item;
836 struct option *p_longopts;
839 module_config_t *pp_shortopts[256];
842 /* Set default configuration and copy arguments */
843 p_this->p_vlc->i_argc = *pi_argc;
844 p_this->p_vlc->ppsz_argv = ppsz_argv;
846 p_this->p_vlc->p_channel = NULL;
849 /* When vlc.app is run by double clicking in Mac OS X, the 2nd arg
850 * is the PSN - process serial number (a unique PID-ish thingie)
851 * still ok for real Darwin & when run from command line */
852 if ( (*pi_argc > 1) && (strncmp( ppsz_argv[ 1 ] , "-psn" , 4 ) == 0) )
853 /* for example -psn_0_9306113 */
855 /* GDMF!... I can't do this or else the MacOSX window server will
856 * not pick up the PSN and not register the app and we crash...
857 * hence the following kludge otherwise we'll get confused w/ argv[1]
858 * being an input file name */
860 ppsz_argv[ 1 ] = NULL;
862 *pi_argc = *pi_argc - 1;
869 * Generate the longopts and shortopts structures used by getopt_long
873 for( p_module = p_this->p_vlc->module_bank.first;
875 p_module = p_module->next )
877 /* count the number of exported configuration options (to allocate
878 * longopts). We also need to allocate space for too options when
879 * dealing with boolean to allow for --foo and --no-foo */
880 i_opts += (p_module->i_config_items + p_module->i_bool_items);
883 p_longopts = malloc( sizeof(struct option) * (i_opts + 1) );
884 if( p_longopts == NULL )
886 msg_Err( p_this, "out of memory" );
890 psz_shortopts = malloc( sizeof( char ) * (2 * i_opts + 1) );
891 if( psz_shortopts == NULL )
893 msg_Err( p_this, "out of memory" );
898 /* If we are requested to ignore errors, then we must work on a copy
899 * of the ppsz_argv array, otherwise getopt_long will reorder it for
900 * us, ignoring the arity of the options */
901 if( b_ignore_errors )
903 ppsz_argv = (char**)malloc( *pi_argc * sizeof(char *) );
904 if( ppsz_argv == NULL )
906 msg_Err( p_this, "out of memory" );
907 free( psz_shortopts );
911 memcpy( ppsz_argv, p_this->p_vlc->ppsz_argv,
912 *pi_argc * sizeof(char *) );
916 for( i_index = 0; i_index < 256; i_index++ )
918 pp_shortopts[i_index] = NULL;
921 /* Fill the p_longopts and psz_shortopts structures */
923 for( p_module = p_this->p_vlc->module_bank.first ;
925 p_module = p_module->next )
927 for( p_item = p_module->p_config;
928 p_item->i_type != MODULE_CONFIG_HINT_END;
932 if( p_item->i_type & MODULE_CONFIG_HINT )
935 /* Add item to long options */
936 p_longopts[i_index].name = strdup( p_item->psz_name );
937 if( p_longopts[i_index].name == NULL ) continue;
938 p_longopts[i_index].has_arg =
939 (p_item->i_type == MODULE_CONFIG_ITEM_BOOL)?
940 no_argument : required_argument;
941 p_longopts[i_index].flag = &flag;
942 p_longopts[i_index].val = 0;
945 /* When dealing with bools we also need to add the --no-foo
947 if( p_item->i_type == MODULE_CONFIG_ITEM_BOOL )
949 char *psz_name = malloc( strlen(p_item->psz_name) + 4 );
950 if( psz_name == NULL ) continue;
951 strcpy( psz_name, "no-" );
952 strcat( psz_name, p_item->psz_name );
954 p_longopts[i_index].name = psz_name;
955 p_longopts[i_index].has_arg = no_argument;
956 p_longopts[i_index].flag = &flag;
957 p_longopts[i_index].val = 1;
961 /* If item also has a short option, add it */
962 if( p_item->i_short )
964 pp_shortopts[(int)p_item->i_short] = p_item;
965 psz_shortopts[i_shortopts] = p_item->i_short;
967 if( p_item->i_type != MODULE_CONFIG_ITEM_BOOL )
969 psz_shortopts[i_shortopts] = ':';
976 /* Close the longopts and shortopts structures */
977 memset( &p_longopts[i_index], 0, sizeof(struct option) );
978 psz_shortopts[i_shortopts] = '\0';
981 * Parse the command line options
985 while( ( i_cmd = getopt_long( *pi_argc, ppsz_argv, psz_shortopts,
986 p_longopts, &i_index ) ) != EOF )
988 /* A long option has been recognized */
991 module_config_t *p_conf;
992 char *psz_name = (char *)p_longopts[i_index].name;
994 /* Check if we deal with a --no-foo long option */
995 if( flag ) psz_name += 3;
997 /* Store the configuration option */
998 p_conf = config_FindConfig( p_this, psz_name );
1000 if( p_conf ) switch( p_conf->i_type )
1002 case MODULE_CONFIG_ITEM_STRING:
1003 case MODULE_CONFIG_ITEM_FILE:
1004 case MODULE_CONFIG_ITEM_MODULE:
1005 config_PutPsz( p_this, psz_name, optarg );
1007 case MODULE_CONFIG_ITEM_INTEGER:
1008 config_PutInt( p_this, psz_name, atoi(optarg));
1010 case MODULE_CONFIG_ITEM_FLOAT:
1011 config_PutFloat( p_this, psz_name, (float)atof(optarg) );
1013 case MODULE_CONFIG_ITEM_BOOL:
1014 config_PutInt( p_this, psz_name, !flag );
1021 /* A short option has been recognized */
1022 if( pp_shortopts[i_cmd] != NULL )
1024 switch( pp_shortopts[i_cmd]->i_type )
1026 case MODULE_CONFIG_ITEM_STRING:
1027 case MODULE_CONFIG_ITEM_FILE:
1028 case MODULE_CONFIG_ITEM_MODULE:
1029 config_PutPsz( p_this, pp_shortopts[i_cmd]->psz_name, optarg );
1031 case MODULE_CONFIG_ITEM_INTEGER:
1032 config_PutInt( p_this, pp_shortopts[i_cmd]->psz_name,
1035 case MODULE_CONFIG_ITEM_BOOL:
1036 config_PutInt( p_this, pp_shortopts[i_cmd]->psz_name, 1 );
1043 /* Internal error: unknown option */
1044 if( !b_ignore_errors )
1046 fprintf( stderr, "unknown option `%s'\n", ppsz_argv[optind-1] );
1047 fprintf( stderr, "Try `%s --help' for more information.\n",
1048 p_this->p_vlc->psz_object_name );
1051 free( psz_shortopts );
1052 if( b_ignore_errors ) free( ppsz_argv );
1057 /* Free allocated resources */
1058 for( i_index = 0; p_longopts[i_index].name; i_index++ )
1059 free( (char *)p_longopts[i_index].name );
1061 free( psz_shortopts );
1062 if( b_ignore_errors ) free( ppsz_argv );
1067 /*****************************************************************************
1068 * config_GetHomeDir: find the user's home directory.
1069 *****************************************************************************
1070 * This function will try by different ways to find the user's home path.
1071 * Note that this function is not reentrant, it should be called only once
1072 * at the beginning of main where the result will be stored for later use.
1073 *****************************************************************************/
1074 char *config_GetHomeDir( void )
1076 char *p_tmp, *p_homedir = NULL;
1078 #if defined(HAVE_GETPWUID)
1079 struct passwd *p_pw = NULL;
1083 typedef HRESULT (WINAPI *SHGETFOLDERPATH)( HWND, int, HANDLE, DWORD,
1085 # define CSIDL_FLAG_CREATE 0x8000
1086 # define CSIDL_APPDATA 0x1A
1087 # define SHGFP_TYPE_CURRENT 0
1089 HINSTANCE shfolder_dll;
1090 SHGETFOLDERPATH SHGetFolderPath ;
1092 /* load the shell32 dll to retreive SHGetFolderPath */
1093 if( ( shfolder_dll = LoadLibrary("shfolder.dll") ) != NULL )
1095 SHGetFolderPath = (void *)GetProcAddress( shfolder_dll,
1096 "SHGetFolderPathA" );
1097 if ( SHGetFolderPath != NULL )
1099 p_homedir = (char *)malloc( MAX_PATH );
1102 //X intf_ErrMsg( "config error: couldn't malloc p_homedir" );
1106 /* get the "Application Data" folder for the current user */
1107 if( S_OK == SHGetFolderPath( NULL,
1108 CSIDL_APPDATA | CSIDL_FLAG_CREATE,
1109 NULL, SHGFP_TYPE_CURRENT,
1112 FreeLibrary( shfolder_dll );
1117 FreeLibrary( shfolder_dll );
1121 #if defined(HAVE_GETPWUID)
1122 if( ( p_pw = getpwuid( getuid() ) ) == NULL )
1125 if( ( p_tmp = getenv( "HOME" ) ) == NULL )
1127 if( ( p_tmp = getenv( "TMP" ) ) == NULL )
1129 p_homedir = strdup( "/tmp" );
1131 else p_homedir = strdup( p_tmp );
1133 //X intf_ErrMsg( "config error: unable to get home directory, "
1134 //X "using %s instead", p_homedir );
1137 else p_homedir = strdup( p_tmp );
1139 #if defined(HAVE_GETPWUID)
1142 p_homedir = strdup( p_pw->pw_dir );