2 * Copyright (C) 2005-2007 Andre Noll <maan@systemlinux.org>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
19 /** \file audioc.c the client program used to connect to para_audiod */
21 #include "audioc.cmdline.h"
30 /** the gengetopt structure containing command line args */
31 struct audioc_args_info conf;
33 INIT_STDERR_LOGGING(conf.loglevel_arg);
35 static char *concat_args(unsigned argc, char * const *argv)
37 int i; char *buf = NULL;
38 for (i = 0; i < argc; i++) {
39 buf = para_strcat(buf, argv[i]);
41 buf = para_strcat(buf, "\n");
46 static char *configfile_exists(void)
48 static char *config_file;
53 char *home = para_homedir();
54 config_file = make_message("%s/.paraslash/audioc.conf", home);
57 if (!stat(config_file, &statbuf))
63 * the client program to connect to para_audiod
65 * \param argc usual argument count
66 * \param argv usual argument vector
68 * It creates a temporary local socket in order to communicate with para_audiod.
69 * Authentication consists in sending a ucred buffer that contains the user id.
71 * Any output received through the local socket is sent to stdout.
73 * \return EXIT_SUCCESS or EXIT_FAILURE
75 * \sa send_cred_buffer(), para_audioc(1), para_audiod(1).
77 int main(int argc, char *argv[])
79 struct sockaddr_un unix_addr;
80 int ret = -E_AUDIOC_SYNTAX, fd;
81 char *cf, *socket_name, *randname = para_tmpname(), *tmpsocket_name = NULL,
82 *buf = NULL, *hn = para_hostname(), *args, *home = para_homedir();
83 size_t bufsize = conf.bufsize_arg, loaded = 0;
85 if (audioc_cmdline_parser(argc, argv, &conf))
87 HANDLE_VERSION_FLAG("audioc", conf);
88 cf = configfile_exists();
90 if (audioc_cmdline_parser_configfile(cf, &conf, 0, 0, 0)) {
91 fprintf(stderr, "parse error in config file\n");
95 args = conf.inputs_num?
96 concat_args(conf.inputs_num, conf.inputs) :
98 buf = para_malloc(bufsize);
99 if (conf.socket_given)
100 socket_name = para_strdup(conf.socket_arg);
102 socket_name = make_message(
103 "/var/paraslash/audiod_socket.%s", hn);
104 if (conf.tmpdir_given)
105 tmpsocket_name = make_message("%s/audioc.sock.%s.%s",
106 conf.tmpdir_arg, hn, randname);
108 tmpsocket_name = make_message("%s/.paraslash/audioc_sock.%s.%s",
111 ret = create_pf_socket(tmpsocket_name, &unix_addr, S_IRUSR | S_IWUSR);
112 unlink(tmpsocket_name);
116 ret = -E_INIT_SOCK_ADDR;
117 if (init_unix_addr(&unix_addr, socket_name) < 0)
119 ret = - E_AUDIOC_CONNECT;
120 if (connect(fd, (struct sockaddr *)&unix_addr, UNIX_PATH_MAX) < 0)
122 ret = send_cred_buffer(fd, args);
126 int max_fileno = -1, check_write = 0;
131 if (loaded < bufsize)
132 para_fd_set(fd, &rfd, &max_fileno);
134 para_fd_set(STDOUT_FILENO, &wfd, &max_fileno);
137 ret = -E_AUDIOC_OVERRUN;
140 ret = para_select(max_fileno + 1, &rfd, &wfd, NULL);
143 if (loaded < bufsize && FD_ISSET(fd, &rfd)) {
144 len = recv_bin_buffer(fd, buf + loaded,
147 ret = len < 0? -E_AUDIOC_READ : 0;
152 if (check_write && FD_ISSET(STDOUT_FILENO, &wfd)) {
153 ret = write(STDOUT_FILENO, buf, loaded);
155 ret = -E_AUDIOC_WRITE;
162 if (!ret && loaded && buf)
163 ret = write(STDOUT_FILENO, buf, loaded);
165 PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
166 return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;