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                 if (pa_proplist_contains(p, k)) {
  69                     pa_xfree(k);
  70                     continue;
  71                 }
  72
  73                 pa_proplist_sets(p, k, *e+11+kl+1);
  74                 pa_xfree(k);
  75             }
  76         }
  77     }
  78
  79     if ((pp = getenv("PULSE_PROP"))) {
  80         pa_proplist *t;
  81
  82         if ((t = pa_proplist_from_string(pp))) {
  83             pa_proplist_update(p, PA_UPDATE_MERGE, t);
  84             pa_proplist_free(t);
  85         }
  86     }
  87
  88     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_ID)) {
  89         char t[32];
  90         pa_snprintf(t, sizeof(t), "%lu", (unsigned long) getpid());
  91         pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_ID, t);
  92     }
  93
  94     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_USER)) {
  95         char t[64];
  96         if (pa_get_user_name(t, sizeof(t))) {
  97             char *c = pa_utf8_filter(t);
  98             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_USER, c);
  99             pa_xfree(c);
 100         }
 101     }
 102
 103     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_HOST)) {
 104         char t[64];
 105         if (pa_get_host_name(t, sizeof(t))) {
 106             char *c = pa_utf8_filter(t);
 107             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_HOST, c);
 108             pa_xfree(c);
 109         }
 110     }
 111
 112     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_BINARY)) {
 113         char t[PATH_MAX];
 114         if (pa_get_binary_name(t, sizeof(t))) {
 115             char *c = pa_utf8_filter(t);
 116             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_BINARY, c);
 117             pa_xfree(c);
 118         }
 119     }
 120
 121 #ifdef RTLD_NOLOAD
 122     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_NAME)) {
 123         void *dl;
 124
 125         if ((dl = dlopen("libglib-2.0", RTLD_NOLOAD))) {
 126             const char *(*_g_get_application_name)(void);
 127
 128             if ((*(void**) &_g_get_application_name = dlsym(dl, "g_get_application_name")))
 129                 pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, _g_get_application_name());
 130
 131             dlclose(dl);
 132         }
 133     }
 134 #endif
 135
 136     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_NAME)) {
 137         const char *t;
 138
 139         if ((t = pa_proplist_gets(p, PA_PROP_APPLICATION_PROCESS_BINARY)))
 140             pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, t);
 141     }
 142
 143     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_LANGUAGE)) {
 144         const char *l;
 145
 146         if ((l = setlocale(LC_MESSAGES, NULL)))
 147             pa_proplist_sets(p, PA_PROP_APPLICATION_LANGUAGE, l);
 148     }
 149
 150     if (!pa_proplist_contains(p, PA_PROP_WINDOW_X11_DISPLAY)) {
 151         const char *t;
 152
 153         if ((t = getenv("DISPLAY"))) {
 154             char *c = pa_utf8_filter(t);
 155             pa_proplist_sets(p, PA_PROP_WINDOW_X11_DISPLAY, c);
 156             pa_xfree(c);
 157         }
 158     }
 159
 160     if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_MACHINE_ID)) {
 161         char *m;
 162
 163         if ((m = pa_machine_id())) {
 164             pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_MACHINE_ID, m);
 165             pa_xfree(m);
 166         }
 167     }
 168 }