src/pulse/client-conf-x11.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   Copyright 2004-2006 Lennart Poettering
   7
   8   PulseAudio is free software; you can redistribute it and/or modify
   9   it under the terms of the GNU Lesser General Public License as published
  10   by the Free Software Foundation; either version 2 of the License,
  11   or (at your option) any later version.
  12
  13   PulseAudio is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with PulseAudio; if not, write to the Free Software
  20   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-13071
  21   USA.
  22 ***/
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include <config.h>
  26 #endif
  27
  28 #include <string.h>
  29
  30 #include <X11/Xlib.h>
  31 #include <X11/Xatom.h>
  32
  33 #include <pulse/xmalloc.h>
  34
  35 #include <pulsecore/x11prop.h>
  36 #include <pulsecore/log.h>
  37 #include <pulsecore/core-util.h>
  38 #include <pulsecore/macro.h>
  39
  40 #include "client-conf-x11.h"
  41
  42 int pa_client_conf_from_x11(pa_client_conf *c, const char *dname) {
  43     Display *d = NULL;
  44     int ret = -1;
  45     char t[1024];
  46
  47     pa_assert(c);
  48
  49     if (!dname && (!(dname = getenv("DISPLAY")) || *dname == '\0'))
  50         goto finish;
  51
  52     if (!(d = XOpenDisplay(dname))) {
  53         pa_log("XOpenDisplay() failed");
  54         goto finish;
  55     }
  56
  57     if (pa_x11_get_prop(d, "PULSE_SERVER", t, sizeof(t))) {
  58         pa_xfree(c->default_server);
  59         c->default_server = pa_xstrdup(t);
  60     }
  61
  62     if (pa_x11_get_prop(d, "PULSE_SINK", t, sizeof(t))) {
  63         pa_xfree(c->default_sink);
  64         c->default_sink = pa_xstrdup(t);
  65     }
  66
  67     if (pa_x11_get_prop(d, "PULSE_SOURCE", t, sizeof(t))) {
  68         pa_xfree(c->default_source);
  69         c->default_source = pa_xstrdup(t);
  70     }
  71
  72     if (pa_x11_get_prop(d, "PULSE_COOKIE", t, sizeof(t))) {
  73         uint8_t cookie[PA_NATIVE_COOKIE_LENGTH];
  74
  75         if (pa_parsehex(t, cookie, sizeof(cookie)) != sizeof(cookie)) {
  76             pa_log("failed to parse cookie data");
  77             goto finish;
  78         }
  79
  80         pa_assert(sizeof(cookie) == sizeof(c->cookie));
  81         memcpy(c->cookie, cookie, sizeof(cookie));
  82
  83         c->cookie_valid = 1;
  84
  85         pa_xfree(c->cookie_file);
  86         c->cookie_file = NULL;
  87     }
  88
  89     ret = 0;
  90
  91 finish:
  92     if (d)
  93         XCloseDisplay(d);
  94
  95     return ret;
  96
  97 }