code.delx.au - pulseaudio/blob - src/module-protocol-stub.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of polypaudio.
   5
   6   polypaudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU 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   polypaudio 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 General Public License
  17   along with polypaudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <string.h>
  27 #include <errno.h>
  28 #include <stdio.h>
  29 #include <assert.h>
  30 #include <arpa/inet.h>
  31 #include <unistd.h>
  32
  33 #include "module.h"
  34 #include "socket-server.h"
  35 #include "socket-util.h"
  36 #include "util.h"
  37 #include "modargs.h"
  38
  39 #ifdef USE_PROTOCOL_SIMPLE
  40   #include "protocol-simple.h"
  41   #define protocol_new pa_protocol_simple_new
  42   #define protocol_free pa_protocol_simple_free
  43   #define IPV4_PORT 4711
  44   #define UNIX_SOCKET "/tmp/polypaudio/simple"
  45   #define MODULE_ARGUMENTS "rate", "format", "channels", "sink", "source", "playback", "record",
  46 #else
  47   #ifdef USE_PROTOCOL_CLI
  48     #include "protocol-cli.h"
  49     #define protocol_new pa_protocol_cli_new
  50     #define protocol_free pa_protocol_cli_free
  51     #define IPV4_PORT 4712
  52     #define UNIX_SOCKET "/tmp/polypaudio/cli"
  53     #define MODULE_ARGUMENTS
  54   #else
  55     #ifdef USE_PROTOCOL_NATIVE
  56       #include "protocol-native.h"
  57       #define protocol_new pa_protocol_native_new
  58       #define protocol_free pa_protocol_native_free
  59       #define IPV4_PORT 4713
  60       #define UNIX_SOCKET "/tmp/polypaudio/native"
  61       #define MODULE_ARGUMENTS "public", "cookie",
  62     #else
  63       #ifdef USE_PROTOCOL_ESOUND
  64         #include "protocol-esound.h"
  65         #include "esound.h"
  66         #define protocol_new pa_protocol_esound_new
  67         #define protocol_free pa_protocol_esound_free
  68         #define IPV4_PORT ESD_DEFAULT_PORT
  69         #define UNIX_SOCKET ESD_UNIX_SOCKET_NAME
  70         #define MODULE_ARGUMENTS "sink", "source", "public", "cookie",
  71       #else
  72         #error "Broken build system"
  73       #endif
  74     #endif
  75   #endif
  76 #endif
  77
  78 static const char* const valid_modargs[] = {
  79     MODULE_ARGUMENTS
  80 #ifdef USE_TCP_SOCKETS
  81     "port",
  82     "loopback",
  83 #else
  84     "socket",
  85 #endif
  86     NULL
  87 };
  88
  89 static struct pa_socket_server *create_socket_server(struct pa_core *c, struct pa_modargs *ma) {
  90     struct pa_socket_server *s;
  91 #ifdef USE_TCP_SOCKETS
  92     uint32_t loopback = 1, port = IPV4_PORT;
  93
  94     if (pa_modargs_get_value_u32(ma, "loopback", &loopback) < 0) {
  95         fprintf(stderr, "loopback= expects a numerical argument.\n");
  96         return NULL;
  97     }
  98
  99     if (pa_modargs_get_value_u32(ma, "port", &port) < 0) {
 100         fprintf(stderr, "port= expects a numerical argument.\n");
 101         return NULL;
 102     }
 103
 104     if (!(s = pa_socket_server_new_ipv4(c->mainloop, loopback ? INADDR_LOOPBACK : INADDR_ANY, port)))
 105         return NULL;
 106 #else
 107     int r;
 108     const char *p;
 109
 110     p = pa_modargs_get_value(ma, "socket", UNIX_SOCKET);
 111     assert(p);
 112
 113     if (pa_unix_socket_make_secure_dir(p) < 0) {
 114         fprintf(stderr, "Failed to create secure socket directory.\n");
 115         return NULL;
 116     }
 117
 118     if ((r = pa_unix_socket_remove_stale(p)) < 0) {
 119         fprintf(stderr, "Failed to remove stale UNIX socket '%s': %s\n", p, strerror(errno));
 120         return NULL;
 121     }
 122
 123     if (r)
 124         fprintf(stderr, "Removed stale UNIX socket '%s'.", p);
 125
 126     if (!(s = pa_socket_server_new_unix(c->mainloop, p)))
 127         return NULL;
 128
 129 #endif
 130     return s;
 131 }
 132
 133 int pa_module_init(struct pa_core *c, struct pa_module*m) {
 134     struct pa_socket_server *s;
 135     struct pa_modargs *ma = NULL;
 136     int ret = -1;
 137     assert(c && m);
 138
 139     if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
 140         fprintf(stderr, "Failed to parse module arguments\n");
 141         goto finish;
 142     }
 143
 144     if (!(s = create_socket_server(c, ma)))
 145         goto finish;
 146
 147     if (!(m->userdata = protocol_new(c, s, m, ma))) {
 148         pa_socket_server_free(s);
 149         goto finish;
 150     }
 151
 152     ret = 0;
 153
 154 finish:
 155     if (ma)
 156         pa_modargs_free(ma);
 157
 158     return ret;
 159 }
 160
 161 void pa_module_done(struct pa_core *c, struct pa_module*m) {
 162     assert(c && m);
 163
 164     protocol_free(m->userdata);
 165 }