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 #pragma GCC diagnostic ignored "-Wstrict-prototypes"
  52 #include <gtk/gtk.h>
  53 #include <gdk/gdkx.h>
  54 static G_CONST_RETURN gchar* _gtk_window_get_default_icon_name(void) PA_GCC_WEAKREF(gtk_window_get_default_icon_name);
  55 static Display *_gdk_display PA_GCC_WEAKREF(gdk_display);
  56 #endif
  57
  58 #include "proplist-util.h"
  59
  60 static void add_glib_properties(pa_proplist *p) {
  61
  62 #if defined(HAVE_GLIB) && defined(PA_GCC_WEAKREF)
  63
  64     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_NAME))
  65         if (_g_get_application_name) {
  66             const gchar *t;
  67
  68             /* We ignore the tiny race condition here. */
  69
  70             if ((t = _g_get_application_name()))
  71                 pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, t);
  72         }
  73
  74 #endif
  75 }
  76
  77 static void add_gtk_properties(pa_proplist *p) {
  78
  79 #if defined(HAVE_GTK) && defined(PA_GCC_WEAKREF)
  80
  81     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_ICON_NAME))
  82         if (_gtk_window_get_default_icon_name) {
  83             const gchar *t;
  84
  85             /* We ignore the tiny race condition here. */
  86
  87             if ((t = _gtk_window_get_default_icon_name()))
  88                 pa_proplist_sets(p, PA_PROP_APPLICATION_ICON_NAME, t);
  89         }
  90
  91     if (!pa_proplist_contains(p, PA_PROP_WINDOW_X11_DISPLAY))
  92         if (&_gdk_display && _gdk_display) {
  93             const char *t;
  94
  95             /* We ignore the tiny race condition here. */
  96
  97             if ((t = DisplayString(_gdk_display)))
  98                 pa_proplist_sets(p, PA_PROP_WINDOW_X11_DISPLAY, t);
  99         }
 100
 101 #endif
 102 }
 103
 104 void pa_init_proplist(pa_proplist *p) {
 105     char **e;
 106     const char *pp;
 107
 108     pa_assert(p);
 109
 110     if (environ) {
 111
 112         /* Some applications seem to reset environ to NULL for various
 113          * reasons, hence we need to check for this explicitly. See
 114          * rhbz #473080 */
 115
 116         for (e = environ; *e; e++) {
 117
 118             if (pa_startswith(*e, "PULSE_PROP_")) {
 119                 size_t kl, skip;
 120                 char *k;
 121                 pa_bool_t override;
 122
 123                 if (pa_startswith(*e, "PULSE_PROP_OVERRIDE_")) {
 124                     skip = 20;
 125                     override = TRUE;
 126                 } else {
 127                     skip = 11;
 128                     override = FALSE;
 129                 }
 130
 131                 kl = strcspn(*e+skip, "=");
 132
 133                 if ((*e)[skip+kl] != '=')
 134                     continue;
 135
 136                 k = pa_xstrndup(*e+skip, kl);
 137
 138                 if (!pa_streq(k, "OVERRIDE"))
 139                     if (override || !pa_proplist_contains(p, k))
 140                         pa_proplist_sets(p, k, *e+skip+kl+1);
 141                 pa_xfree(k);
 142             }
 143         }
 144     }
 145
 146     if ((pp = getenv("PULSE_PROP"))) {
 147         pa_proplist *t;
 148
 149         if ((t = pa_proplist_from_string(pp))) {
 150             pa_proplist_update(p, PA_UPDATE_MERGE, t);
 151             pa_proplist_free(t);
 152         }
 153     }
 154
 155     if ((pp = getenv("PULSE_PROP_OVERRIDE"))) {
 156         pa_proplist *t;
 157
 158         if ((t = pa_proplist_from_string(pp))) {
 159             pa_proplist_update(p, PA_UPDATE_REPLACE, t);
 160             pa_proplist_free(t);
 161         }
 162     }
 163
 164     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_ID)) {
 165         char t[32];
 166         pa_snprintf(t, sizeof(t), "%lu", (unsigned long) getpid());
 167         pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_ID, t);
 168     }
 169
 170     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_USER)) {
 171         char t[64];
 172         if (pa_get_user_name(t, sizeof(t))) {
 173             char *c = pa_utf8_filter(t);
 174             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_USER, c);
 175             pa_xfree(c);
 176         }
 177     }
 178
 179     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_HOST)) {
 180         char t[64];
 181         if (pa_get_host_name(t, sizeof(t))) {
 182             char *c = pa_utf8_filter(t);
 183             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_HOST, c);
 184             pa_xfree(c);
 185         }
 186     }
 187
 188     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_BINARY)) {
 189         char t[PATH_MAX];
 190         if (pa_get_binary_name(t, sizeof(t))) {
 191             char *c = pa_utf8_filter(t);
 192             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_BINARY, c);
 193             pa_xfree(c);
 194         }
 195     }
 196
 197     add_glib_properties(p);
 198     add_gtk_properties(p);
 199
 200     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_NAME)) {
 201         const char *t;
 202
 203         if ((t = pa_proplist_gets(p, PA_PROP_APPLICATION_PROCESS_BINARY)))
 204             pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, t);
 205     }
 206
 207     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_LANGUAGE)) {
 208         const char *l;
 209
 210         if ((l = setlocale(LC_MESSAGES, NULL)))
 211             pa_proplist_sets(p, PA_PROP_APPLICATION_LANGUAGE, l);
 212     }
 213
 214     if (!pa_proplist_contains(p, PA_PROP_WINDOW_X11_DISPLAY)) {
 215         const char *t;
 216
 217         if ((t = getenv("DISPLAY"))) {
 218             char *c = pa_utf8_filter(t);
 219             pa_proplist_sets(p, PA_PROP_WINDOW_X11_DISPLAY, c);
 220             pa_xfree(c);
 221         }
 222     }
 223
 224     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_MACHINE_ID)) {
 225         char *m;
 226
 227         if ((m = pa_machine_id())) {
 228             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_MACHINE_ID, m);
 229             pa_xfree(m);
 230         }
 231     }
 232
 233     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_SESSION_ID)) {
 234         char *s;
 235
 236         if ((s = pa_session_id())) {
 237             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_SESSION_ID, s);
 238             pa_xfree(s);
 239         }
 240     }
 241 }