lxdream.org :: lxdream/src/config.c r1038:f220d18c0615

filename	src/config.c
changeset	1038:f220d18c0615
prev	1036:af7b0c5905dd
next	1041:5fcc39857c5c
author	nkeynes
date	Thu Jun 25 21:21:18 2009 +0000 (14 years ago)
permissions	-rw-r--r--
last change	Add quick state bits to the menus

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     1 /**

     2  * $Id$

     3  *

     4  * User configuration support

     5  *

     6  * Copyright (c) 2005 Nathan Keynes.

     7  *

     8  * This program is free software; you can redistribute it and/or modify

     9  * it under the terms of the GNU General Public License as published by

    10  * the Free Software Foundation; either version 2 of the License, or

    11  * (at your option) any later version.

    12  *

    13  * This program is distributed in the hope that it will be useful,

    14  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    16  * GNU General Public License for more details.

    17  */

    19 #include <unistd.h>

    20 #include <stdio.h>

    21 #include <ctype.h>

    22 #include <errno.h>

    23 #include <stdlib.h>

    24 #include <string.h>

    25 #include <wordexp.h>

    26 #include <glib/gmem.h>

    27 #include <glib/gstrfuncs.h>

    28 #include <sys/types.h>

    29 #include <sys/stat.h>

    30 #include "dream.h"

    31 #include "config.h"

    32 #include "maple/maple.h"

    34 #define MAX_ROOT_GROUPS 16

    36 extern struct lxdream_config_entry alsa_config[];

    37 extern struct lxdream_config_entry hotkeys_config[];

    39 gboolean lxdream_load_config_file( const gchar *filename );

    40 gboolean lxdream_save_config_file( const gchar *filename );

    41 gboolean lxdream_load_config_stream( FILE *f );

    42 gboolean lxdream_save_config_stream( FILE *f );

    44 static struct lxdream_config_entry global_config[] =

    45        {{ "bios", N_("Bios ROM"), CONFIG_TYPE_FILE, NULL },

    46         { "flash", N_("Flash ROM"), CONFIG_TYPE_FILE, NULL },

    47         { "default path", N_("Default disc path"), CONFIG_TYPE_PATH, "." },

    48         { "save path", N_("Save-state path"), CONFIG_TYPE_PATH, NULL },

    49         { "vmu path", N_("VMU path"), CONFIG_TYPE_PATH, NULL },

    50         { "bootstrap", N_("Bootstrap IP.BIN"), CONFIG_TYPE_FILE, NULL },

    51         { "gdrom", NULL, CONFIG_TYPE_FILE, NULL },

    52         { "recent", NULL, CONFIG_TYPE_FILELIST, NULL },

    53         { "vmu", NULL, CONFIG_TYPE_FILELIST, NULL },

    54         { "quick state", NULL, CONFIG_TYPE_INTEGER, "0" },

    55         { NULL, CONFIG_TYPE_NONE }};

    57 static struct lxdream_config_entry serial_config[] =

    58        {{ "device", N_("Serial device"), CONFIG_TYPE_FILE, "/dev/ttyS1" },

    59         { NULL, CONFIG_TYPE_NONE }};

    61 struct lxdream_config_group lxdream_config_root[MAX_ROOT_GROUPS+1] =

    62        {{ "global", global_config },

    63         { "controllers", NULL },

    64         { "hotkeys", hotkeys_config },

    65         { "serial", serial_config },

    66         { NULL, CONFIG_TYPE_NONE }};

    68 static gchar *lxdream_config_load_filename = NULL;

    69 static gchar *lxdream_config_save_filename = NULL;

    71 void lxdream_register_config_group( const gchar *key, lxdream_config_entry_t group )

    72 {

    73     int i;

    74     for( i=0; i<MAX_ROOT_GROUPS; i++ ) {

    75         if( lxdream_config_root[i].key == NULL ) {

    76             lxdream_config_root[i].key = key;

    77             lxdream_config_root[i].params = group;

    78             lxdream_config_root[i+1].key = NULL;

    79             lxdream_config_root[i+1].params = CONFIG_TYPE_NONE;

    80             return;

    81         }

    82     }

    83     ERROR( "Unable to register config group '%s': Too many configuration groups", key );

    84 }

    86 gboolean lxdream_find_config()

    87 {

    88     gboolean result = TRUE;

    89     char *home = getenv("HOME");

    90     if( lxdream_config_save_filename == NULL ) {

    91         /* For compatibility, look for the old ~/.lxdreamrc first. Use it if

    92          * found, otherwise use the new ~/.lxdream/lxdreamrc.

    93          */

    94         lxdream_config_save_filename = g_strdup_printf("%s/.%s", home, DEFAULT_CONFIG_FILENAME);

    95         if( access(lxdream_config_save_filename, R_OK) != 0 ) {

    96             g_free(lxdream_config_save_filename);

    97             const char *user_path = get_user_data_path();

    98             lxdream_config_save_filename = g_strdup_printf("%s/%s", user_path, DEFAULT_CONFIG_FILENAME);

    99         }

   100     }

   101     if( lxdream_config_load_filename == NULL ) {

   102         char *sysconfig = g_strdup_printf("%s/%s", get_sysconf_path(), DEFAULT_CONFIG_FILENAME);

   103         if( access(lxdream_config_save_filename, R_OK) == 0 ) {

   104             lxdream_config_load_filename = g_strdup(lxdream_config_save_filename);

   105             g_free(sysconfig);

   106         } else if( access( sysconfig, R_OK ) == 0 ) {

   107             lxdream_config_load_filename = sysconfig;

   108         } else {

   109             lxdream_config_load_filename = g_strdup(lxdream_config_save_filename);

   110             g_free(sysconfig);

   111             result = FALSE;

   112         }

   113     }

   114     return result;

   115 }

   117 void lxdream_set_config_filename( const gchar *filename )

   118 {

   119     if( lxdream_config_load_filename != NULL ) {

   120         g_free(lxdream_config_load_filename);

   121     }

   122     lxdream_config_load_filename = g_strdup(filename);

   123     if( lxdream_config_save_filename != NULL ) {

   124         g_free(lxdream_config_save_filename);

   125     }

   126     lxdream_config_save_filename = g_strdup(filename);

   127 }

   129 void lxdream_set_default_config( )

   130 {

   131     /* Construct platform dependent defaults */

   132     const gchar *user_path = get_user_data_path();

   133     global_config[CONFIG_BIOS_PATH].default_value = g_strdup_printf( "%s/dcboot.rom", user_path );

   134     global_config[CONFIG_FLASH_PATH].default_value = g_strdup_printf( "%s/dcflash.rom", user_path );

   135     global_config[CONFIG_SAVE_PATH].default_value = g_strdup_printf( "%s/save", user_path );

   136     global_config[CONFIG_VMU_PATH].default_value = g_strdup_printf( "%s/vmu", user_path );

   137     global_config[CONFIG_BOOTSTRAP].default_value = g_strdup_printf( "%s/IP.BIN", user_path );

   139     /* Copy defaults into main values */

   140     struct lxdream_config_group *group = lxdream_config_root;

   141     while( group->key != NULL ) {

   142         struct lxdream_config_entry *param = group->params;

   143         if( param != NULL ) {

   144             while( param->key != NULL ) {

   145                 if( param->value != param->default_value ) {

   146                     if( param->value != NULL )

   147                         free( param->value );

   148                     param->value = (gchar *)param->default_value;

   149                 }

   150                 param++;

   151             }

   152         }

   153         group++;

   154     }

   155     maple_detach_all();

   156 }

   158 const gchar *lxdream_get_global_config_value( int key )

   159 {

   160     return global_config[key].value;

   161 }

   163 GList *lxdream_get_global_config_list_value( int key )

   164 {

   165     GList *result = NULL;

   166     const gchar *str = lxdream_get_global_config_value( key );

   167     if( str != NULL ) {

   168         gchar **strv = g_strsplit(str, ":",0);

   169         int i;

   170         for( i=0; strv[i] != NULL; i++ ) {

   171             result = g_list_append( result, g_strdup(strv[i]) );

   172         }

   173         g_strfreev(strv);

   174     }

   175     return result;

   176 }

   178 void lxdream_set_global_config_list_value( int key, const GList *list )

   179 {

   180     if( list == NULL ) {

   181         lxdream_set_global_config_value( key, NULL );

   182     } else {

   183         const GList *ptr;

   184         int size = 0;

   186         for( ptr = list; ptr != NULL; ptr = g_list_next(ptr) ) {

   187             size += strlen( (gchar *)ptr->data ) + 1;

   188         }

   189         char buf[size];

   190         strcpy( buf, (gchar *)list->data );

   191         for( ptr = g_list_next(list); ptr != NULL; ptr = g_list_next(ptr) ) {

   192             strcat( buf, ":" );

   193             strcat( buf, (gchar *)ptr->data );

   194         }

   195         lxdream_set_global_config_value( key, buf );

   196     }

   197 }

   199 gchar *get_expanded_path( const gchar *input )

   200 {

   201     wordexp_t we;

   202     if( input == NULL ) {

   203         return NULL;

   204     }

   205     memset(&we,0,sizeof(we));

   206     int result = wordexp(input, &we, WRDE_NOCMD);

   207     if( result != 0 || we.we_wordc == 0 ) {

   208         /* On failure, return the original input unchanged */

   209         return g_strdup(input);

   210     } else {

   211         /* On success, concatenate all 'words' together into a single

   212          * space-separated string

   213          */

   214         int length = we.we_wordc, i;

   215         gchar *result, *p;

   217         for( i=0; i<we.we_wordc; i++ ) {

   218             length += strlen(we.we_wordv[i]);

   219         }

   220         p = result = g_malloc(length);

   221         for( i=0; i<we.we_wordc; i++ ) {

   222             if( i != 0 )

   223                 *p++ = ' ';

   224             strcpy( p, we.we_wordv[i] );

   225             p += strlen(p);

   226         }

   227         wordfree(&we);

   228         return result;

   229     }

   230 }

   232 /**

   233  * Test if we need to escape a path to prevent substitution mangling.

   234  * @return TRUE if the input value contains any character that doesn't

   235  * match [a-zA-Z0-9._@%/] (this will escape slightly more than it needs to,

   236  * but is safe)

   237  */

   238 gboolean path_needs_escaping( const gchar *value )

   239 {

   240    const gchar *p = value;

   241    while( *p ) {

   242        if( !isalnum(*p) && *p != '.' && *p != '_' &&

   243                *p != '@' && *p != '%' && *p != '/' ) {

   244            return TRUE;

   245        }

   246        p++;

   247    }

   248    return FALSE;

   249 }

   251 gchar *get_escaped_path( const gchar *value )

   252 {

   253     if( value != NULL && path_needs_escaping(value) ) {

   254         /* Escape with "", and backslash the remaining characters:

   255          *   \ " $ `

   256          */

   257         char buf[strlen(value)*2+3];

   258         const char *s = value;

   259         char *p = buf;

   260         *p++ = '\"';

   261         while( *s ) {

   262             if( *s == '\\' || *s == '"' || *s == '$' || *s == '`' ) {

   263                 *p++ = '\\';

   264             }

   265             *p++ = *s++;

   266         }

   267         *p++ = '\"';

   268         *p = '\0';

   269         return g_strdup(buf);

   270     } else {

   271         return g_strdup(value);

   272     }

   273 }

   275 gchar *lxdream_get_global_config_path_value( int key )

   276 {

   277     const gchar *str = lxdream_get_global_config_value(key);

   278     if( str == NULL ) {

   279         return NULL;

   280     } else {

   281         return get_expanded_path(str);

   282     }

   283 }

   285 const gchar *lxdream_set_global_config_path_value( int key, const gchar *value )

   286 {

   287     gchar *temp = get_escaped_path(value);

   288     lxdream_set_global_config_value(key,temp);

   289     g_free(temp);

   290     return lxdream_get_global_config_value(key);

   291 }

   293 void lxdream_set_config_value( lxdream_config_entry_t param, const gchar *value )

   294 {

   295     if( param->value != value ) {

   296         if( param->value != param->default_value && param->value != NULL ) {

   297             free( param->value );

   298         }

   299         param->value = g_strdup(value);

   300     }

   301 }

   303 void lxdream_set_global_config_value( int key, const gchar *value )

   304 {

   305     lxdream_set_config_value(&global_config[key], value);

   306 }

   308 const struct lxdream_config_entry * lxdream_get_global_config_entry( int key )

   309 {

   310     return &global_config[key];

   311 }

   313 gboolean lxdream_set_group_value( lxdream_config_group_t group, const gchar *key, const gchar *value )

   314 {

   315     int i;

   316     for( i=0; group->params[i].key != NULL; i++ ) {

   317         if( strcasecmp( group->params[i].key, key ) == 0 ) {

   318             lxdream_set_config_value( &group->params[i], value );

   319             return TRUE;

   320         }

   321     }

   322     return FALSE;

   323 }

   325 void lxdream_copy_config_list( lxdream_config_entry_t dest, lxdream_config_entry_t src )

   326 {

   327     int i;

   328     for( i=0; src[i].key != NULL; i++ ) {

   329         lxdream_set_config_value( &dest[i], src[i].value );

   330     }

   331 }

   333 gboolean lxdream_load_config( )

   334 {

   335     if( lxdream_config_load_filename == NULL ) {

   336         lxdream_find_config();

   337     }

   338     return lxdream_load_config_file(lxdream_config_load_filename);

   339 }

   341 gboolean lxdream_save_config( )

   342 {

   343     if( lxdream_config_save_filename == NULL ) {

   344         lxdream_find_config();

   345     }

   346     return lxdream_save_config_file(lxdream_config_save_filename);

   347 }

   349 gboolean lxdream_load_config_file( const gchar *filename )

   350 {

   351     FILE *f;

   352     gboolean result;

   354     if( access(filename, F_OK) != 0 ) {

   355         INFO( "Configuration file '%s' does not exist, creating from defaults" );

   356         lxdream_set_default_config();

   357         lxdream_save_config();

   358     }

   360     f = fopen(filename, "ro");

   361     if( f == NULL ) {

   362         ERROR( "Unable to open configuration file '%s': %s", filename, strerror(errno) );

   363         lxdream_set_default_config();

   364         return FALSE;

   365     }

   367     result = lxdream_load_config_stream( f );

   368     fclose(f);

   369     return result;

   370 }

   372 gboolean lxdream_load_config_stream( FILE *f )

   373 {

   375     char buf[512];

   376     int maple_device = -1, maple_subdevice = -1;

   377     struct lxdream_config_group devgroup;

   378     struct lxdream_config_group *group = NULL;

   379     maple_device_t device = NULL;

   380     lxdream_set_default_config();

   382     while( fgets( buf, sizeof(buf), f ) != NULL ) {

   383         g_strstrip(buf);

   384         if( buf[0] == '#' )

   385             continue;

   386         if( *buf == '[' ) {

   387             char *p = strchr(buf, ']');

   388             if( p != NULL ) {

   389                 struct lxdream_config_group *tmp_group;

   390                 maple_device = maple_subdevice = -1;

   391                 *p = '\0';

   392                 g_strstrip(buf+1);

   393                 tmp_group = &lxdream_config_root[0];

   394                 while( tmp_group->key != NULL ) {

   395                     if( strcasecmp(tmp_group->key, buf+1) == 0 ) {

   396                         group = tmp_group;

   397                         break;

   398                     }

   399                     tmp_group++;

   400                 }

   401             }

   402         } else if( group != NULL ) {

   403             char *value = strchr( buf, '=' );

   404             if( value != NULL ) {

   405                 struct lxdream_config_entry *param = group->params;

   406                 *value = '\0';

   407                 value++;

   408                 g_strstrip(buf);

   409                 g_strstrip(value);

   410                 if( strcmp(group->key,"controllers") == 0  ) {

   411                     if( g_strncasecmp( buf, "device ", 7 ) == 0 ) {

   412                         maple_device = strtoul( buf+7, NULL, 0 );

   413                         if( maple_device < 0 || maple_device > 3 ) {

   414                             ERROR( "Device number must be between 0..3 (not '%s')", buf+7);

   415                             continue;

   416                         }

   417                         maple_subdevice = 0;

   418                         device = maple_new_device( value );

   419                         if( device == NULL ) {

   420                             ERROR( "Unrecognized device '%s'", value );

   421                         } else {

   422                             devgroup.key = "controllers";

   423                             devgroup.params = maple_get_device_config(device);

   424                             maple_attach_device( device, maple_device, maple_subdevice );

   425                             group = &devgroup;

   426                         }

   427                         continue;

   428                     } else if( g_strncasecmp( buf, "subdevice ", 10 ) == 0 ) {

   429                         maple_subdevice = strtoul( buf+10, NULL, 0 );

   430                         if( maple_device == -1 ) {

   431                             ERROR( "Subdevice not allowed without primary device" );

   432                         } else if( maple_subdevice < 1 || maple_subdevice > 5 ) {

   433                             ERROR( "Subdevice must be between 1..5 (not '%s')", buf+10 );

   434                         } else if( (device = maple_new_device(value)) == NULL ) {

   435                             ERROR( "Unrecognized subdevice '%s'", value );

   436                         } else {

   437                             devgroup.key = "controllers";

   438                             devgroup.params = maple_get_device_config(device);

   439                             maple_attach_device( device, maple_device, maple_subdevice );

   440                             group = &devgroup;

   441                         }

   442                         continue;

   443                     }

   444                 }

   445                 while( param->key != NULL ) {

   446                     if( strcasecmp( param->key, buf ) == 0 ) {

   447                         param->value = g_strdup(value);

   448                         break;

   449                     }

   450                     param++;

   451                 }

   452             }

   453         }

   454     }

   455     return TRUE;

   456 }

   458 gboolean lxdream_save_config_file( const gchar *filename )

   459 {

   460     FILE *f = fopen(filename, "wo");

   461     gboolean result;

   462     if( f == NULL ) {

   463         ERROR( "Unable to open '%s': %s", filename, strerror(errno) );

   464         return FALSE;

   465     }

   466     result = lxdream_save_config_stream(f);

   467     fclose(f);

   468     return TRUE;

   469 }

   471 gboolean lxdream_save_config_stream( FILE *f )

   472 {

   473     struct lxdream_config_group *group = &lxdream_config_root[0];

   475     while( group->key != NULL ) {

   476         struct lxdream_config_entry *entry = group->params;

   477         fprintf( f, "[%s]\n", group->key );

   479         if( entry != NULL ) {

   480             while( entry->key != NULL ) {

   481                 if( entry->value != NULL ) {

   482                     fprintf( f, "%s = %s\n", entry->key, entry->value );

   483                 }

   484                 entry++;

   485             }

   486         } else if( strcmp(group->key, "controllers") == 0 ) {

   487             int i,j;

   488             for( i=0; i<4; i++ ) {

   489                 for( j=0; j<6; j++ ) {

   490                     maple_device_t dev = maple_get_device( i, j );

   491                     if( dev != NULL ) {

   492                         if( j == 0 )

   493                             fprintf( f, "Device %d = %s\n", i, dev->device_class->name );

   494                         else

   495                             fprintf( f, "Subdevice %d = %s\n", j, dev->device_class->name );

   496                         if( dev->get_config != NULL && ((entry = dev->get_config(dev)) != NULL) ) {

   497                             while( entry->key != NULL ) {

   498                                 if( entry->value != NULL ) {

   499                                     fprintf( f, "%*c%s = %s\n", j==0?4:8, ' ',entry->key, entry->value );

   500                                 }

   501                                 entry++;

   502                             }

   503                         }

   504                     }

   505                 }

   506             }

   507         }

   508         fprintf( f, "\n" );

   509         group++;

   510     }

   511     return TRUE;

   512 }

   514 void lxdream_make_config_dir( )

   515 {

   516     const char *user_path = get_user_data_path();

   517     struct stat st;

   519     if( access( user_path, R_OK|X_OK ) == 0 && lstat( user_path, &st ) == 0 &&

   520             (st.st_mode & S_IFDIR) != 0 ) {

   521         /* All good */

   522         return;

   523     }

   525     if( mkdir( user_path, 0777 ) != 0 ) {

   526         ERROR( "Unable to create user configuration directory %s: %s", user_path, strerror(errno) );

   527         return;

   528     }

   530     char *vmupath = g_strdup_printf( "%s/vmu", user_path );

   531     mkdir( vmupath, 0777 );

   532     g_free( vmupath );

   534     char *savepath = g_strdup_printf( "%s/save", user_path );

   535     mkdir( savepath, 0777 );

   536     g_free( vmupath );

   537 }