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/proplist.h>
  38 #include <pulse/utf8.h>
  39 #include <pulse/xmalloc.h>
  40 #include <pulse/util.h>
  41
  42 #include <pulsecore/core-util.h>
  43
  44 #include "proplist-util.h"
  45
  46 void pa_init_proplist(pa_proplist *p) {
  47     char **e;
  48     const char *pp;
  49
  50     pa_assert(p);
  51
  52     if (environ) {
  53
  54         /* Some applications seem to reset environ to NULL for various
  55          * reasons, hence we need to check for this explicitly. See
  56          * rhbz #473080 */
  57
  58         for (e = environ; *e; e++) {
  59
  60             if (pa_startswith(*e, "PULSE_PROP_")) {
  61                 size_t kl = strcspn(*e+11, "=");
  62                 char *k;
  63
  64                 if ((*e)[11+kl] != '=')
  65                     continue;
  66
  67                 if (!pa_utf8_valid(*e+11+kl+1))
  68                     continue;
  69
  70                 k = pa_xstrndup(*e+11, kl);
  71
  72                 pa_proplist_sets(p, k, *e+11+kl+1);
  73                 pa_xfree(k);
  74             }
  75         }
  76     }
  77
  78     if ((pp = getenv("PULSE_PROP"))) {
  79         pa_proplist *t;
  80
  81         if ((t = pa_proplist_from_string(pp))) {
  82             pa_proplist_update(p, PA_UPDATE_REPLACE, t);
  83             pa_proplist_free(t);
  84         }
  85     }
  86
  87     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_ID)) {
  88         char t[32];
  89         pa_snprintf(t, sizeof(t), "%lu", (unsigned long) getpid());
  90         pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_ID, t);
  91     }
  92
  93     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_USER)) {
  94         char t[64];
  95         if (pa_get_user_name(t, sizeof(t))) {
  96             char *c = pa_utf8_filter(t);
  97             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_USER, c);
  98             pa_xfree(c);
  99         }
 100     }
 101
 102     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_HOST)) {
 103         char t[64];
 104         if (pa_get_host_name(t, sizeof(t))) {
 105             char *c = pa_utf8_filter(t);
 106             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_HOST, c);
 107             pa_xfree(c);
 108         }
 109     }
 110
 111     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_BINARY)) {
 112         char t[PATH_MAX];
 113         if (pa_get_binary_name(t, sizeof(t))) {
 114             char *c = pa_utf8_filter(t);
 115             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_BINARY, c);
 116             pa_xfree(c);
 117         }
 118     }
 119
 120 #ifdef RTLD_NOLOAD
 121     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_NAME)) {
 122         void *dl;
 123
 124         if ((dl = dlopen("libglib-2.0", RTLD_NOLOAD))) {
 125             const char *(*_g_get_application_name)(void);
 126
 127             if ((*(void**) &_g_get_application_name = dlsym(dl, "g_get_application_name")))
 128                 pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, _g_get_application_name());
 129
 130             dlclose(dl);
 131         }
 132     }
 133 #endif
 134
 135     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_NAME)) {
 136         const char *t;
 137
 138         if ((t = pa_proplist_gets(p, PA_PROP_APPLICATION_PROCESS_BINARY)))
 139             pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, t);
 140     }
 141
 142     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_LANGUAGE)) {
 143         const char *l;
 144
 145         if ((l = setlocale(LC_MESSAGES, NULL)))
 146             pa_proplist_sets(p, PA_PROP_APPLICATION_LANGUAGE, l);
 147     }
 148
 149     if (!pa_proplist_contains(p, PA_PROP_WINDOW_X11_DISPLAY)) {
 150         const char *t;
 151
 152         if ((t = getenv("DISPLAY"))) {
 153             char *c = pa_utf8_filter(t);
 154             pa_proplist_sets(p, PA_PROP_WINDOW_X11_DISPLAY, c);
 155             pa_xfree(c);
 156         }
 157     }
 158
 159     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_MACHINE_ID)) {
 160         char *m;
 161
 162         if ((m = pa_machine_id())) {
 163             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_MACHINE_ID, m);
 164             pa_xfree(m);
 165         }
 166     }
 167 }