code.delx.au - pulseaudio/blob - src/pulsecore/proplist-util.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2008 Lennart Poettering
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as
   8   published by the Free Software Foundation; either version 2.1 of the
   9   License, or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public
  17   License along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <string.h>
  27 #include <locale.h>
  28 #include <dlfcn.h>
  29
  30 #ifdef __APPLE__
  31 #include <crt_externs.h>
  32 #define environ (*_NSGetEnviron())
  33 #elif !HAVE_DECL_ENVIRON
  34 extern char **environ;
  35 #endif
  36
  37 #include <pulse/gccmacro.h>
  38 #include <pulse/proplist.h>
  39 #include <pulse/utf8.h>
  40 #include <pulse/xmalloc.h>
  41 #include <pulse/util.h>
  42
  43 #include <pulsecore/core-util.h>
  44
  45 #if defined(HAVE_GLIB) && defined(PA_GCC_WEAKREF)
  46 #include <glib.h>
  47 static G_CONST_RETURN gchar* _g_get_application_name(void) PA_GCC_WEAKREF(g_get_application_name);
  48 #endif
  49
  50 #if defined(HAVE_GTK) && defined(PA_GCC_WEAKREF)
  51 #include <gtk/gtk.h>
  52 #include <gdk/gdkx.h>
  53 static G_CONST_RETURN gchar* _gtk_window_get_default_icon_name(void) PA_GCC_WEAKREF(gtk_window_get_default_icon_name);
  54 static Display *_gdk_display PA_GCC_WEAKREF(gdk_display);
  55 #endif
  56
  57 #include "proplist-util.h"
  58
  59 static void add_glib_properties(pa_proplist *p) {
  60
  61 #if defined(HAVE_GLIB) && defined(PA_GCC_WEAKREF)
  62
  63     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_NAME))
  64         if (_g_get_application_name) {
  65             const gchar *t;
  66
  67             /* We ignore the tiny race condition here. */
  68
  69             if ((t = _g_get_application_name()))
  70                 pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, t);
  71         }
  72
  73 #endif
  74 }
  75
  76 static void add_gtk_properties(pa_proplist *p) {
  77
  78 #if defined(HAVE_GTK) && defined(PA_GCC_WEAKREF)
  79
  80     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_ICON_NAME))
  81         if (_gtk_window_get_default_icon_name) {
  82             const gchar *t;
  83
  84             /* We ignore the tiny race condition here. */
  85
  86             if ((t = _gtk_window_get_default_icon_name()))
  87                 pa_proplist_sets(p, PA_PROP_APPLICATION_ICON_NAME, t);
  88         }
  89
  90     if (!pa_proplist_contains(p, PA_PROP_WINDOW_X11_DISPLAY))
  91         if (&_gdk_display && _gdk_display) {
  92             const char *t;
  93
  94             /* We ignore the tiny race condition here. */
  95
  96             if ((t = DisplayString(_gdk_display)))
  97                 pa_proplist_sets(p, PA_PROP_WINDOW_X11_DISPLAY, t);
  98         }
  99
 100 #endif
 101 }
 102
 103 void pa_init_proplist(pa_proplist *p) {
 104     char **e;
 105     const char *pp;
 106
 107     pa_assert(p);
 108
 109     if (environ) {
 110
 111         /* Some applications seem to reset environ to NULL for various
 112          * reasons, hence we need to check for this explicitly. See
 113          * rhbz #473080 */
 114
 115         for (e = environ; *e; e++) {
 116
 117             if (pa_startswith(*e, "PULSE_PROP_")) {
 118                 size_t kl, skip;
 119                 char *k;
 120                 pa_bool_t override;
 121
 122                 if (pa_startswith(*e, "PULSE_PROP_OVERRIDE_")) {
 123                     skip = 20;
 124                     override = TRUE;
 125                 } else {
 126                     skip = 11;
 127                     override = FALSE;
 128                 }
 129
 130                 kl = strcspn(*e+skip, "=");
 131
 132                 if ((*e)[skip+kl] != '=')
 133                     continue;
 134
 135                 k = pa_xstrndup(*e+skip, kl);
 136
 137                 if (override || !pa_proplist_contains(p, k))
 138                     pa_proplist_sets(p, k, *e+skip+kl+1);
 139                 pa_xfree(k);
 140             }
 141         }
 142     }
 143
 144     if ((pp = getenv("PULSE_PROP"))) {
 145         pa_proplist *t;
 146
 147         if ((t = pa_proplist_from_string(pp))) {
 148             pa_proplist_update(p, PA_UPDATE_MERGE, t);
 149             pa_proplist_free(t);
 150         }
 151     }
 152
 153     if ((pp = getenv("PULSE_PROP_OVERRIDE"))) {
 154         pa_proplist *t;
 155
 156         if ((t = pa_proplist_from_string(pp))) {
 157             pa_proplist_update(p, PA_UPDATE_REPLACE, t);
 158             pa_proplist_free(t);
 159         }
 160     }
 161
 162     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_ID)) {
 163         char t[32];
 164         pa_snprintf(t, sizeof(t), "%lu", (unsigned long) getpid());
 165         pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_ID, t);
 166     }
 167
 168     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_USER)) {
 169         char t[64];
 170         if (pa_get_user_name(t, sizeof(t))) {
 171             char *c = pa_utf8_filter(t);
 172             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_USER, c);
 173             pa_xfree(c);
 174         }
 175     }
 176
 177     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_HOST)) {
 178         char t[64];
 179         if (pa_get_host_name(t, sizeof(t))) {
 180             char *c = pa_utf8_filter(t);
 181             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_HOST, c);
 182             pa_xfree(c);
 183         }
 184     }
 185
 186     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_BINARY)) {
 187         char t[PATH_MAX];
 188         if (pa_get_binary_name(t, sizeof(t))) {
 189             char *c = pa_utf8_filter(t);
 190             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_BINARY, c);
 191             pa_xfree(c);
 192         }
 193     }
 194
 195     add_glib_properties(p);
 196     add_gtk_properties(p);
 197
 198     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_NAME)) {
 199         const char *t;
 200
 201         if ((t = pa_proplist_gets(p, PA_PROP_APPLICATION_PROCESS_BINARY)))
 202             pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, t);
 203     }
 204
 205     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_LANGUAGE)) {
 206         const char *l;
 207
 208         if ((l = setlocale(LC_MESSAGES, NULL)))
 209             pa_proplist_sets(p, PA_PROP_APPLICATION_LANGUAGE, l);
 210     }
 211
 212     if (!pa_proplist_contains(p, PA_PROP_WINDOW_X11_DISPLAY)) {
 213         const char *t;
 214
 215         if ((t = getenv("DISPLAY"))) {
 216             char *c = pa_utf8_filter(t);
 217             pa_proplist_sets(p, PA_PROP_WINDOW_X11_DISPLAY, c);
 218             pa_xfree(c);
 219         }
 220     }
 221
 222     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_MACHINE_ID)) {
 223         char *m;
 224
 225         if ((m = pa_machine_id())) {
 226             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_MACHINE_ID, m);
 227             pa_xfree(m);
 228         }
 229     }
 230 }