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;
  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 (pa_x11_get_prop(xcb, "PULSE_SERVER", t, sizeof(t))) {
  59         pa_bool_t disable_autospawn = TRUE;
  60
  61         pa_xfree(c->default_server);
  62         c->default_server = pa_xstrdup(t);
  63
  64         if (pa_x11_get_prop(xcb, "PULSE_SESSION_ID", t, sizeof(t))) {
  65             char *id;
  66
  67             if ((id = pa_session_id())) {
  68                 if (pa_streq(t, id))
  69                     disable_autospawn = FALSE;
  70                 pa_xfree(id);
  71             }
  72         }
  73
  74         if (disable_autospawn)
  75             c->autospawn = FALSE;
  76     }
  77
  78     if (pa_x11_get_prop(xcb, "PULSE_SINK", t, sizeof(t))) {
  79         pa_xfree(c->default_sink);
  80         c->default_sink = pa_xstrdup(t);
  81     }
  82
  83     if (pa_x11_get_prop(xcb, "PULSE_SOURCE", t, sizeof(t))) {
  84         pa_xfree(c->default_source);
  85         c->default_source = pa_xstrdup(t);
  86     }
  87
  88     if (pa_x11_get_prop(xcb, "PULSE_COOKIE", t, sizeof(t))) {
  89         uint8_t cookie[PA_NATIVE_COOKIE_LENGTH];
  90
  91         if (pa_parsehex(t, cookie, sizeof(cookie)) != sizeof(cookie)) {
  92             pa_log(_("Failed to parse cookie data"));
  93             goto finish;
  94         }
  95
  96         pa_assert(sizeof(cookie) == sizeof(c->cookie));
  97         memcpy(c->cookie, cookie, sizeof(cookie));
  98
  99         c->cookie_valid = TRUE;
 100
 101         pa_xfree(c->cookie_file);
 102         c->cookie_file = NULL;
 103     }
 104
 105     ret = 0;
 106
 107 finish:
 108     if (xcb)
 109         xcb_disconnect(xcb);
 110
 111     return ret;
 112
 113 }