code.delx.au - pulseaudio/blob - src/pulse/client-conf-x11.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2004-2006 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 published
   8   by the Free Software Foundation; either version 2.1 of the License,
   9   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   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-13071
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <string.h>
  27
  28 #include <xcb/xcb.h>
  29
  30 #include <pulse/xmalloc.h>
  31 #include <pulse/i18n.h>
  32
  33 #include <pulsecore/x11prop.h>
  34 #include <pulsecore/log.h>
  35 #include <pulsecore/core-util.h>
  36 #include <pulsecore/macro.h>
  37
  38 #include "client-conf-x11.h"
  39
  40 int pa_client_conf_from_x11(pa_client_conf *c, const char *dname) {
  41     xcb_connection_t *xcb = NULL;
  42     int ret = -1, screen = 0;
  43     char t[1024];
  44
  45     pa_assert(c);
  46
  47     if (!dname && !(dname = getenv("DISPLAY")))
  48         goto finish;
  49
  50     if (*dname == 0)
  51         goto finish;
  52
  53     if (!(xcb = xcb_connect(dname, NULL))) {
  54         pa_log(_("xcb_connect() failed"));
  55         goto finish;
  56     }
  57
  58     if (xcb_connection_has_error(xcb)) {
  59         pa_log(_("xcb_connection_has_error() returned true"));
  60         goto finish;
  61     }
  62
  63     if (pa_x11_get_prop(xcb, screen, "PULSE_SERVER", t, sizeof(t))) {
  64         pa_bool_t disable_autospawn = TRUE;
  65
  66         pa_xfree(c->default_server);
  67         c->default_server = pa_xstrdup(t);
  68
  69         if (pa_x11_get_prop(xcb, screen, "PULSE_SESSION_ID", t, sizeof(t))) {
  70             char *id;
  71
  72             if ((id = pa_session_id())) {
  73                 if (pa_streq(t, id))
  74                     disable_autospawn = FALSE;
  75                 pa_xfree(id);
  76             }
  77         }
  78
  79         if (disable_autospawn)
  80             c->autospawn = FALSE;
  81     }
  82
  83     if (pa_x11_get_prop(xcb, screen, "PULSE_SINK", t, sizeof(t))) {
  84         pa_xfree(c->default_sink);
  85         c->default_sink = pa_xstrdup(t);
  86     }
  87
  88     if (pa_x11_get_prop(xcb, screen, "PULSE_SOURCE", t, sizeof(t))) {
  89         pa_xfree(c->default_source);
  90         c->default_source = pa_xstrdup(t);
  91     }
  92
  93     if (pa_x11_get_prop(xcb, screen, "PULSE_COOKIE", t, sizeof(t))) {
  94         uint8_t cookie[PA_NATIVE_COOKIE_LENGTH];
  95
  96         if (pa_parsehex(t, cookie, sizeof(cookie)) != sizeof(cookie)) {
  97             pa_log(_("Failed to parse cookie data"));
  98             goto finish;
  99         }
 100
 101         pa_assert(sizeof(cookie) == sizeof(c->cookie));
 102         memcpy(c->cookie, cookie, sizeof(cookie));
 103
 104         c->cookie_valid = TRUE;
 105
 106         pa_xfree(c->cookie_file);
 107         c->cookie_file = NULL;
 108     }
 109
 110     ret = 0;
 111
 112 finish:
 113     if (xcb)
 114         xcb_disconnect(xcb);
 115
 116     return ret;
 117
 118 }