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 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
  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     Display *d = 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 (!(d = XOpenDisplay(dname))) {
  54         pa_log("XOpenDisplay() failed");
  55         goto finish;
  56     }
  57
  58     if (pa_x11_get_prop(d, "PULSE_SERVER", t, sizeof(t))) {
  59         pa_xfree(c->default_server);
  60         c->default_server = pa_xstrdup(t);
  61     }
  62
  63     if (pa_x11_get_prop(d, "PULSE_SINK", t, sizeof(t))) {
  64         pa_xfree(c->default_sink);
  65         c->default_sink = pa_xstrdup(t);
  66     }
  67
  68     if (pa_x11_get_prop(d, "PULSE_SOURCE", t, sizeof(t))) {
  69         pa_xfree(c->default_source);
  70         c->default_source = pa_xstrdup(t);
  71     }
  72
  73     if (pa_x11_get_prop(d, "PULSE_COOKIE", t, sizeof(t))) {
  74         uint8_t cookie[PA_NATIVE_COOKIE_LENGTH];
  75
  76         if (pa_parsehex(t, cookie, sizeof(cookie)) != sizeof(cookie)) {
  77             pa_log("failed to parse cookie data");
  78             goto finish;
  79         }
  80
  81         pa_assert(sizeof(cookie) == sizeof(c->cookie));
  82         memcpy(c->cookie, cookie, sizeof(cookie));
  83
  84         c->cookie_valid = TRUE;
  85
  86         pa_xfree(c->cookie_file);
  87         c->cookie_file = NULL;
  88     }
  89
  90     ret = 0;
  91
  92 finish:
  93     if (d)
  94         XCloseDisplay(d);
  95
  96     return ret;
  97
  98 }