src/pulse/client-conf.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2004-2006 Lennart Poettering
   5   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   6
   7   PulseAudio is free software; you can redistribute it and/or modify
   8   it under the terms of the GNU Lesser General Public License as published
   9   by the Free Software Foundation; either version 2.1 of the License,
  10   or (at your option) any later version.
  11
  12   PulseAudio is distributed in the hope that it will be useful, but
  13   WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15   General Public License for more details.
  16
  17   You should have received a copy of the GNU Lesser General Public License
  18   along with PulseAudio; if not, write to the Free Software
  19   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  20   USA.
  21 ***/
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include <stdlib.h>
  28 #include <unistd.h>
  29 #include <errno.h>
  30
  31 #include <pulse/xmalloc.h>
  32
  33 #include <pulsecore/i18n.h>
  34 #include <pulsecore/macro.h>
  35 #include <pulsecore/core-error.h>
  36 #include <pulsecore/log.h>
  37 #include <pulsecore/conf-parser.h>
  38 #include <pulsecore/core-util.h>
  39 #include <pulsecore/authkey.h>
  40
  41 #include "client-conf.h"
  42
  43 #define DEFAULT_CLIENT_CONFIG_FILE PA_DEFAULT_CONFIG_DIR PA_PATH_SEP "client.conf"
  44 #define DEFAULT_CLIENT_CONFIG_FILE_USER "client.conf"
  45
  46 #define ENV_CLIENT_CONFIG_FILE "PULSE_CLIENTCONFIG"
  47 #define ENV_DEFAULT_SINK "PULSE_SINK"
  48 #define ENV_DEFAULT_SOURCE "PULSE_SOURCE"
  49 #define ENV_DEFAULT_SERVER "PULSE_SERVER"
  50 #define ENV_DAEMON_BINARY "PULSE_BINARY"
  51 #define ENV_COOKIE_FILE "PULSE_COOKIE"
  52
  53 static const pa_client_conf default_conf = {
  54     .daemon_binary = NULL,
  55     .extra_arguments = NULL,
  56     .default_sink = NULL,
  57     .default_source = NULL,
  58     .default_server = NULL,
  59     .default_dbus_server = NULL,
  60     .autospawn = TRUE,
  61     .disable_shm = FALSE,
  62     .cookie_file = NULL,
  63     .cookie_valid = FALSE,
  64     .shm_size = 0,
  65     .auto_connect_localhost = FALSE,
  66     .auto_connect_display = FALSE
  67 };
  68
  69 pa_client_conf *pa_client_conf_new(void) {
  70     pa_client_conf *c = pa_xmemdup(&default_conf, sizeof(default_conf));
  71
  72     c->daemon_binary = pa_xstrdup(PA_BINARY);
  73     c->extra_arguments = pa_xstrdup("--log-target=syslog");
  74     c->cookie_file = NULL;
  75
  76     return c;
  77 }
  78
  79 void pa_client_conf_free(pa_client_conf *c) {
  80     pa_assert(c);
  81     pa_xfree(c->daemon_binary);
  82     pa_xfree(c->extra_arguments);
  83     pa_xfree(c->default_sink);
  84     pa_xfree(c->default_source);
  85     pa_xfree(c->default_server);
  86     pa_xfree(c->default_dbus_server);
  87     pa_xfree(c->cookie_file);
  88     pa_xfree(c);
  89 }
  90
  91 int pa_client_conf_load(pa_client_conf *c, const char *filename) {
  92     FILE *f = NULL;
  93     char *fn = NULL;
  94     int r = -1;
  95
  96     /* Prepare the configuration parse table */
  97     pa_config_item table[] = {
  98         { "daemon-binary",          pa_config_parse_string,   &c->daemon_binary, NULL },
  99         { "extra-arguments",        pa_config_parse_string,   &c->extra_arguments, NULL },
 100         { "default-sink",           pa_config_parse_string,   &c->default_sink, NULL },
 101         { "default-source",         pa_config_parse_string,   &c->default_source, NULL },
 102         { "default-server",         pa_config_parse_string,   &c->default_server, NULL },
 103         { "default-dbus-server",    pa_config_parse_string,   &c->default_dbus_server, NULL },
 104         { "autospawn",              pa_config_parse_bool,     &c->autospawn, NULL },
 105         { "cookie-file",            pa_config_parse_string,   &c->cookie_file, NULL },
 106         { "disable-shm",            pa_config_parse_bool,     &c->disable_shm, NULL },
 107         { "enable-shm",             pa_config_parse_not_bool, &c->disable_shm, NULL },
 108         { "shm-size-bytes",         pa_config_parse_size,     &c->shm_size, NULL },
 109         { "auto-connect-localhost", pa_config_parse_bool,     &c->auto_connect_localhost, NULL },
 110         { "auto-connect-display",   pa_config_parse_bool,     &c->auto_connect_display, NULL },
 111         { NULL,                     NULL,                     NULL, NULL },
 112     };
 113
 114     if (filename) {
 115
 116         if (!(f = pa_fopen_cloexec(filename, "r"))) {
 117             pa_log(_("Failed to open configuration file '%s': %s"), fn, pa_cstrerror(errno));
 118             goto finish;
 119         }
 120
 121         fn = pa_xstrdup(fn);
 122
 123     } else {
 124
 125         if (!(f = pa_open_config_file(DEFAULT_CLIENT_CONFIG_FILE, DEFAULT_CLIENT_CONFIG_FILE_USER, ENV_CLIENT_CONFIG_FILE, &fn)))
 126             if (errno != ENOENT)
 127                 goto finish;
 128     }
 129
 130     r = f ? pa_config_parse(fn, f, table, NULL, NULL) : 0;
 131
 132     if (!r)
 133         r = pa_client_conf_load_cookie(c);
 134
 135 finish:
 136     pa_xfree(fn);
 137
 138     if (f)
 139         fclose(f);
 140
 141     return r;
 142 }
 143
 144 int pa_client_conf_env(pa_client_conf *c) {
 145     char *e;
 146
 147     if ((e = getenv(ENV_DEFAULT_SINK))) {
 148         pa_xfree(c->default_sink);
 149         c->default_sink = pa_xstrdup(e);
 150     }
 151
 152     if ((e = getenv(ENV_DEFAULT_SOURCE))) {
 153         pa_xfree(c->default_source);
 154         c->default_source = pa_xstrdup(e);
 155     }
 156
 157     if ((e = getenv(ENV_DEFAULT_SERVER))) {
 158         pa_xfree(c->default_server);
 159         c->default_server = pa_xstrdup(e);
 160
 161         /* We disable autospawning automatically if a specific server was set */
 162         c->autospawn = FALSE;
 163     }
 164
 165     if ((e = getenv(ENV_DAEMON_BINARY))) {
 166         pa_xfree(c->daemon_binary);
 167         c->daemon_binary = pa_xstrdup(e);
 168     }
 169
 170     if ((e = getenv(ENV_COOKIE_FILE))) {
 171         pa_xfree(c->cookie_file);
 172         c->cookie_file = pa_xstrdup(e);
 173
 174         return pa_client_conf_load_cookie(c);
 175     }
 176
 177     return 0;
 178 }
 179
 180 int pa_client_conf_load_cookie(pa_client_conf* c) {
 181     int k;
 182
 183     pa_assert(c);
 184
 185     c->cookie_valid = FALSE;
 186
 187     if (c->cookie_file)
 188         k = pa_authkey_load_auto(c->cookie_file, TRUE, c->cookie, sizeof(c->cookie));
 189     else {
 190         k = pa_authkey_load_auto(PA_NATIVE_COOKIE_FILE, FALSE, c->cookie, sizeof(c->cookie));
 191
 192         if (k < 0) {
 193             k = pa_authkey_load_auto(PA_NATIVE_COOKIE_FILE_FALLBACK, FALSE, c->cookie, sizeof(c->cookie));
 194
 195             if (k < 0)
 196                 k = pa_authkey_load_auto(PA_NATIVE_COOKIE_FILE, TRUE, c->cookie, sizeof(c->cookie));
 197         }
 198     }
 199
 200     if (k < 0)
 201         return k;
 202
 203     c->cookie_valid = TRUE;
 204     return 0;
 205 }