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 <X11/Xlib.h>
  29 #include <X11/Xatom.h>
  30
  31 #include <pulse/xmalloc.h>
  32 #include <pulse/i18n.h>
  33
  34 #include <pulsecore/x11prop.h>
  35 #include <pulsecore/log.h>
  36 #include <pulsecore/core-util.h>
  37 #include <pulsecore/macro.h>
  38
  39 #include "client-conf-x11.h"
  40
  41 int pa_client_conf_from_x11(pa_client_conf *c, const char *dname) {
  42     Display *d = NULL;
  43     int ret = -1;
  44     char t[1024];
  45
  46     pa_assert(c);
  47
  48     if (!dname && !(dname = getenv("DISPLAY")))
  49         goto finish;
  50
  51     if (*dname == 0)
  52         goto finish;
  53
  54     if (!(d = XOpenDisplay(dname))) {
  55         pa_log(_("XOpenDisplay() failed"));
  56         goto finish;
  57     }
  58
  59     if (pa_x11_get_prop(d, "PULSE_SERVER", t, sizeof(t))) {
  60         pa_bool_t disable_autospawn = TRUE;
  61
  62         pa_xfree(c->default_server);
  63         c->default_server = pa_xstrdup(t);
  64
  65         if (pa_x11_get_prop(d, "PULSE_SESSION_ID", t, sizeof(t))) {
  66             char *id;
  67
  68             if ((id = pa_session_id())) {
  69                 if (pa_streq(t, id))
  70                     disable_autospawn = FALSE;
  71                 pa_xfree(id);
  72             }
  73         }
  74
  75         if (disable_autospawn)
  76             c->autospawn = FALSE;
  77     }
  78
  79     if (pa_x11_get_prop(d, "PULSE_SINK", t, sizeof(t))) {
  80         pa_xfree(c->default_sink);
  81         c->default_sink = pa_xstrdup(t);
  82     }
  83
  84     if (pa_x11_get_prop(d, "PULSE_SOURCE", t, sizeof(t))) {
  85         pa_xfree(c->default_source);
  86         c->default_source = pa_xstrdup(t);
  87     }
  88
  89     if (pa_x11_get_prop(d, "PULSE_COOKIE", t, sizeof(t))) {
  90         uint8_t cookie[PA_NATIVE_COOKIE_LENGTH];
  91
  92         if (pa_parsehex(t, cookie, sizeof(cookie)) != sizeof(cookie)) {
  93             pa_log(_("Failed to parse cookie data"));
  94             goto finish;
  95         }
  96
  97         pa_assert(sizeof(cookie) == sizeof(c->cookie));
  98         memcpy(c->cookie, cookie, sizeof(cookie));
  99
 100         c->cookie_valid = TRUE;
 101
 102         pa_xfree(c->cookie_file);
 103         c->cookie_file = NULL;
 104     }
 105
 106     ret = 0;
 107
 108 finish:
 109     if (d)
 110         XCloseDisplay(d);
 111
 112     return ret;
 113
 114 }