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 #include <pulse/proplist.h>
  31 #include <pulse/utf8.h>
  32 #include <pulse/xmalloc.h>
  33 #include <pulse/util.h>
  34
  35 #include <pulsecore/core-util.h>
  36
  37 #include "proplist-util.h"
  38
  39 void pa_init_proplist(pa_proplist *p) {
  40 #if !HAVE_DECL_ENVIRON
  41     extern char **environ;
  42 #endif
  43     char **e;
  44     const char *pp;
  45
  46     pa_assert(p);
  47
  48     if (environ) {
  49
  50         /* Some applications seem to reset environ to NULL for various
  51          * reasons, hence we need to check for this explicitly. See
  52          * rhbz #473080 */
  53
  54         for (e = environ; *e; e++) {
  55
  56             if (pa_startswith(*e, "PULSE_PROP_")) {
  57                 size_t kl = strcspn(*e+11, "=");
  58                 char *k;
  59
  60                 if ((*e)[11+kl] != '=')
  61                     continue;
  62
  63                 if (!pa_utf8_valid(*e+11+kl+1))
  64                     continue;
  65
  66                 k = pa_xstrndup(*e+11, kl);
  67
  68                 pa_proplist_sets(p, k, *e+11+kl+1);
  69                 pa_xfree(k);
  70             }
  71         }
  72     }
  73
  74     if ((pp = getenv("PULSE_PROP"))) {
  75         pa_proplist *t;
  76
  77         if ((t = pa_proplist_from_string(pp))) {
  78             pa_proplist_update(p, PA_UPDATE_REPLACE, t);
  79             pa_proplist_free(t);
  80         }
  81     }
  82
  83     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_ID)) {
  84         char t[32];
  85         pa_snprintf(t, sizeof(t), "%lu", (unsigned long) getpid());
  86         pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_ID, t);
  87     }
  88
  89     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_USER)) {
  90         char t[64];
  91         if (pa_get_user_name(t, sizeof(t))) {
  92             char *c = pa_utf8_filter(t);
  93             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_USER, c);
  94             pa_xfree(c);
  95         }
  96     }
  97
  98     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_HOST)) {
  99         char t[64];
 100         if (pa_get_host_name(t, sizeof(t))) {
 101             char *c = pa_utf8_filter(t);
 102             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_HOST, c);
 103             pa_xfree(c);
 104         }
 105     }
 106
 107     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_BINARY)) {
 108         char t[PATH_MAX];
 109         if (pa_get_binary_name(t, sizeof(t))) {
 110             char *c = pa_utf8_filter(t);
 111             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_BINARY, c);
 112             pa_xfree(c);
 113         }
 114     }
 115
 116 #ifdef RTLD_NOLOAD
 117     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_NAME)) {
 118         void *dl;
 119
 120         if ((dl = dlopen("libglib-2.0", RTLD_NOLOAD))) {
 121             const char *(*_g_get_application_name)(void);
 122
 123             if ((*(void**) &_g_get_application_name = dlsym(dl, "g_get_application_name")))
 124                 pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, _g_get_application_name());
 125
 126             dlclose(dl);
 127         }
 128     }
 129 #endif
 130
 131     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_NAME)) {
 132         const char *t;
 133
 134         if ((t = pa_proplist_gets(p, PA_PROP_APPLICATION_PROCESS_BINARY)))
 135             pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, t);
 136     }
 137
 138     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_LANGUAGE)) {
 139         const char *l;
 140
 141         if ((l = setlocale(LC_MESSAGES, NULL)))
 142             pa_proplist_sets(p, PA_PROP_APPLICATION_LANGUAGE, l);
 143     }
 144
 145     if (!pa_proplist_contains(p, PA_PROP_WINDOW_X11_DISPLAY)) {
 146         const char *t;
 147
 148         if ((t = getenv("DISPLAY"))) {
 149             char *c = pa_utf8_filter(t);
 150             pa_proplist_sets(p, PA_PROP_WINDOW_X11_DISPLAY, c);
 151             pa_xfree(c);
 152         }
 153     }
 154
 155     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_MACHINE_ID)) {
 156         char *m;
 157
 158         if ((m = pa_machine_id())) {
 159             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_MACHINE_ID, m);
 160             pa_xfree(m);
 161         }
 162     }
 163 }