src/misc/darwin_specific.c

   1
   2 /*****************************************************************************
   3  * darwin_specific.m: Darwin specific features
   4  *****************************************************************************
   5  * Copyright (C) 2001-2009 the VideoLAN team
   6  * $Id$
   7  *
   8  * Authors: Sam Hocevar <sam@zoy.org>
   9  *          Christophe Massiot <massiot@via.ecp.fr>
  10  *          Pierre d'Herbemont <pdherbemont@free.fr>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  25  *****************************************************************************/
  26
  27 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #include <vlc_common.h>
  32 #include "../libvlc.h"
  33 #include <dirent.h>                                                /* *dir() */
  34 #include <libgen.h>
  35 #include <dlfcn.h>
  36 #include <CoreFoundation/CoreFoundation.h>
  37 #include <mach-o/dyld.h>
  38
  39 #ifdef HAVE_LOCALE_H
  40 #   include <locale.h>
  41 #endif
  42
  43 #ifndef MAXPATHLEN
  44 # define MAXPATHLEN 1024
  45 #endif
  46
  47 /*****************************************************************************
  48  * system_Init: fill in program path & retrieve language
  49  *****************************************************************************/
  50 void system_Init( libvlc_int_t *p_this, int *pi_argc, const char *ppsz_argv[] )
  51 {
  52     VLC_UNUSED(p_this);
  53     char i_dummy;
  54     char *p_char = NULL;
  55     char *p_oldchar = &i_dummy;
  56     unsigned int i;
  57     (void)pi_argc;
  58
  59     /* Get the full program path and name */
  60     /* First try to see if we are linked to the framework */
  61     for (i = 0; i < _dyld_image_count(); i++)
  62     {
  63         const char * psz_img_name = _dyld_get_image_name(i);
  64         /* Check for "VLCKit.framework/Versions/Current/VLCKit",
  65          * as well as "VLCKit.framework/Versions/A/VLCKit" and
  66          * "VLC.framework/Versions/B/VLCKit" */
  67         if( (p_char = strstr( psz_img_name, "VLCKit.framework/Versions/" )) )
  68         {
  69             /* Look for the next forward slash */
  70             p_char += 26; /* p_char += strlen(" VLCKit.framework/Versions/" ) */
  71             while( *p_char != '\0' && *p_char != '/')
  72                 p_char++;
  73
  74             /* If the string ends with VLC then we've found a winner */
  75             if ( !strcmp( p_char, "/VLCKit" ) )
  76             {
  77                 p_char = strdup( psz_img_name );
  78                 break;
  79             }
  80             else
  81                 p_char = NULL;
  82         }
  83         else
  84         {
  85             size_t len = strlen(psz_img_name);
  86             /* Do we end by "VLC"? If so we are the legacy VLC.app that doesn't
  87              * link to VLCKit. */
  88             if( !strcmp( psz_img_name + len - 3, "VLC") )
  89             {
  90                 p_char = strdup( psz_img_name );
  91                 break;
  92             }
  93         }
  94     }
  95     if ( !p_char )
  96     {
  97         /* We are not linked to the VLC.framework, let's use dladdr to figure
  98          * libvlc path */
  99         Dl_info info;
 100         if( dladdr(system_Init, &info) )
 101             p_char = strdup(dirname( info.dli_fname ));
 102     }
 103     if( !p_char )
 104     {
 105         char path[MAXPATHLEN+1];
 106         uint32_t path_len = MAXPATHLEN;
 107         if ( !_NSGetExecutablePath(path, &path_len) )
 108             p_char = strdup(path);
 109     }
 110     if( !p_char )
 111     {
 112         /* We are not linked to the VLC.framework, return the executable path */
 113         p_char = strdup( ppsz_argv[ 0 ] );
 114     }
 115
 116     free(psz_vlcpath);
 117     psz_vlcpath = p_char;
 118
 119     /* Remove trailing program name */
 120     for( ; *p_char ; )
 121     {
 122         if( *p_char == '/' )
 123         {
 124             *p_oldchar = '/';
 125             *p_char = '\0';
 126             p_oldchar = p_char;
 127         }
 128         p_char++;
 129     }
 130
 131 #ifdef ENABLE_NLS
 132     /* Check if $LANG is set. */
 133     if( NULL == getenv("LANG") )
 134     {
 135         /*
 136            Retrieve the preferred language as chosen in  System Preferences.app
 137            (note that CFLocaleCopyCurrent() is not used because it returns the
 138             preferred locale not language)
 139         */
 140         CFArrayRef all_locales, preferred_locales;
 141         char psz_locale[50];
 142
 143         all_locales = CFLocaleCopyAvailableLocaleIdentifiers();
 144
 145         preferred_locales = CFBundleCopyLocalizationsForPreferences( all_locales, NULL );
 146
 147         if ( preferred_locales )
 148         {
 149             if ( CFArrayGetCount( preferred_locales ) )
 150             {
 151                 CFStringRef user_language_string_ref = CFArrayGetValueAtIndex( preferred_locales, 0 );
 152                 CFStringGetCString( user_language_string_ref, psz_locale, sizeof(psz_locale), kCFStringEncodingUTF8 );
 153                 setenv( "LANG", psz_locale, 1 );
 154             }
 155             CFRelease( preferred_locales );
 156         }
 157         CFRelease( all_locales );
 158     }
 159 #endif
 160 }
 161
 162 /*****************************************************************************
 163  * system_Configure: check for system specific configuration options.
 164  *****************************************************************************/
 165 void system_Configure( libvlc_int_t *p_this,
 166                        int i_argc, const char *const ppsz_argv[] )
 167 {
 168     (void)p_this;
 169     (void)i_argc;
 170     (void)ppsz_argv;
 171 }
 172
 173 /*****************************************************************************
 174  * system_End: free the program path.
 175  *****************************************************************************/
 176 void system_End( libvlc_int_t *p_this )
 177 {
 178     (void)p_this;
 179     free( psz_vlcpath );
 180     psz_vlcpath = NULL;
 181 }
 182