Don't do SIP contact/route DNS if we're not using the result.
[asterisk/asterisk.git] / apps / app_ices.c
old mode 100755 (executable)
new mode 100644 (file)
index 294ecc6..bdccff4
 /*
- * Asterisk -- A telephony toolkit for Linux.
+ * Asterisk -- An open source telephony toolkit.
  *
- * Stream to an icecast server via ICES (see contrib/asterisk-ices.xml)
- * 
- * Copyright (C) 1999, Mark Spencer
+ * Copyright (C) 1999 - 2005, Digium, Inc.
+ *
+ * Mark Spencer <markster@digium.com>
  *
- * Mark Spencer <markster@linux-support.net>
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
  *
  * This program is free software, distributed under the terms of
- * the GNU General Public License
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
  */
+
+/*! \file
+ *
+ * \brief Stream to an icecast server via ICES (see contrib/asterisk-ices.xml)
+ *
+ * \author Mark Spencer <markster@digium.com>
+ * 
+ * ICES - http://www.icecast.org/ices.php
+ *
+ * \ingroup applications
+ */
+
+/*** MODULEINFO
+       <support_level>extended</support_level>
+ ***/
  
-#include <asterisk/lock.h>
-#include <asterisk/file.h>
-#include <asterisk/logger.h>
-#include <asterisk/channel.h>
-#include <asterisk/frame.h>
-#include <asterisk/pbx.h>
-#include <asterisk/module.h>
-#include <asterisk/translate.h>
-#include <string.h>
-#include <stdio.h>
+#include "asterisk.h"
+
+ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
+
 #include <signal.h>
-#include <stdlib.h>
-#include <unistd.h>
 #include <fcntl.h>
-#include <pthread.h>
 #include <sys/time.h>
-#include <errno.h>
-#include "../astconf.h"
 
-#define ICES "/usr/bin/ices"
-#define LOCAL_ICES "/usr/local/bin/ices"
-
-static char *tdesc = "Encode and Stream via icecast and ices";
+#include "asterisk/paths.h"    /* use ast_config_AST_CONFIG_DIR */
+#include "asterisk/lock.h"
+#include "asterisk/file.h"
+#include "asterisk/channel.h"
+#include "asterisk/frame.h"
+#include "asterisk/pbx.h"
+#include "asterisk/module.h"
+#include "asterisk/translate.h"
+#include "asterisk/app.h"
+
+/*** DOCUMENTATION
+       <application name="ICES" language="en_US">
+               <synopsis>
+                       Encode and stream using 'ices'.
+               </synopsis>
+               <syntax>
+                       <parameter name="config" required="true">
+                               <para>ICES configuration file.</para>
+                       </parameter>
+               </syntax>
+               <description>
+                       <para>Streams to an icecast server using ices (available separately).
+                       A configuration file must be supplied for ices (see contrib/asterisk-ices.xml).</para>
+                       <note><para>ICES version 2 client and server required.</para></note>
+               </description>
+       </application>
+
+ ***/
+
+#define path_BIN "/usr/bin/"
+#define path_LOCAL "/usr/local/bin/"
 
 static char *app = "ICES";
 
-static char *synopsis = "Encode and stream using 'ices'";
-
-static char *descrip = 
-"  ICES(config.xml) Streams to an icecast server using ices\n"
-"(available separately).  A configuration file must be supplied\n"
-"for ices (see examples/asterisk-ices.conf).  Returns  -1  on\n"
-"hangup or 0 otherwise.\n";
-
-STANDARD_LOCAL_USER;
-
-LOCAL_USER_DECL;
-
 static int icesencode(char *filename, int fd)
 {
        int res;
-       int x;
-       res = fork();
+
+       res = ast_safe_fork(0);
        if (res < 0) 
                ast_log(LOG_WARNING, "Fork failed\n");
-       if (res)
+       if (res) {
                return res;
-       dup2(fd, STDIN_FILENO);
-       for (x=STDERR_FILENO + 1;x<256;x++) {
-               if ((x != STDIN_FILENO) && (x != STDOUT_FILENO))
-                       close(x);
        }
-       /* Most commonly installed in /usr/local/bin */
-       execl(ICES, "ices", filename, (char *)NULL);
-       /* But many places has it in /usr/bin */
-       execl(LOCAL_ICES, "ices", filename, (char *)NULL);
-       /* As a last-ditch effort, try to use PATH */
-       execlp("ices", "ices", filename, (char *)NULL);
-       ast_log(LOG_WARNING, "Execute of ices failed\n");
-       return -1;
+
+       if (ast_opt_high_priority)
+               ast_set_priority(0);
+       dup2(fd, STDIN_FILENO);
+       ast_close_fds_above_n(STDERR_FILENO);
+
+       /* Most commonly installed in /usr/local/bin 
+        * But many places has it in /usr/bin 
+        * As a last-ditch effort, try to use PATH
+        */
+       execl(path_LOCAL "ices2", "ices", filename, SENTINEL);
+       execl(path_BIN "ices2", "ices", filename, SENTINEL);
+       execlp("ices2", "ices", filename, SENTINEL);
+
+       ast_debug(1, "Couldn't find ices version 2, attempting to use ices version 1.\n");
+
+       execl(path_LOCAL "ices", "ices", filename, SENTINEL);
+       execl(path_BIN "ices", "ices", filename, SENTINEL);
+       execlp("ices", "ices", filename, SENTINEL);
+
+       ast_log(LOG_WARNING, "Execute of ices failed, could not find command.\n");
+       close(fd);
+       _exit(0);
 }
 
-static int ices_exec(struct ast_channel *chan, void *data)
+static int ices_exec(struct ast_channel *chan, const char *data)
 {
-       int res=0;
-       struct localuser *u;
+       int res = 0;
        int fds[2];
        int ms = -1;
        int pid = -1;
        int flags;
-       int oreadformat;
-       struct timeval last;
+       struct ast_format oreadformat;
        struct ast_frame *f;
        char filename[256]="";
        char *c;
-       last.tv_usec = 0;
-       last.tv_sec = 0;
-       if (!data || !strlen(data)) {
+
+       ast_format_clear(&oreadformat);
+       if (ast_strlen_zero(data)) {
                ast_log(LOG_WARNING, "ICES requires an argument (configfile.xml)\n");
                return -1;
        }
+       
        if (pipe(fds)) {
                ast_log(LOG_WARNING, "Unable to create pipe\n");
                return -1;
@@ -99,10 +133,9 @@ static int ices_exec(struct ast_channel *chan, void *data)
        flags = fcntl(fds[1], F_GETFL);
        fcntl(fds[1], F_SETFL, flags | O_NONBLOCK);
        
-       LOCAL_USER_ADD(u);
        ast_stopstream(chan);
 
-       if (chan->_state != AST_STATE_UP)
+       if (ast_channel_state(chan) != AST_STATE_UP)
                res = ast_answer(chan);
                
        if (res) {
@@ -112,8 +145,8 @@ static int ices_exec(struct ast_channel *chan, void *data)
                return -1;
        }
 
-       oreadformat = chan->readformat;
-       res = ast_set_read_format(chan, AST_FORMAT_SLINEAR);
+       ast_format_copy(&oreadformat, ast_channel_readformat(chan));
+       res = ast_set_read_format_by_id(chan, AST_FORMAT_SLINEAR);
        if (res < 0) {
                close(fds[0]);
                close(fds[1]);
@@ -121,37 +154,37 @@ static int ices_exec(struct ast_channel *chan, void *data)
                return -1;
        }
        if (((char *)data)[0] == '/')
-               strncpy(filename, (char *)data, sizeof(filename) - 1);
+               ast_copy_string(filename, (char *) data, sizeof(filename));
        else
-               snprintf(filename, sizeof(filename), "%s/%s", (char *)ast_config_AST_CONFIG_DIR, (char *)data);
+               snprintf(filename, sizeof(filename), "%s/%s", ast_config_AST_CONFIG_DIR, (char *)data);
        /* Placeholder for options */           
        c = strchr(filename, '|');
        if (c)
                *c = '\0';      
        res = icesencode(filename, fds[0]);
-       close(fds[0]);
        if (res >= 0) {
                pid = res;
                for (;;) {
                        /* Wait for audio, and stream */
                        ms = ast_waitfor(chan, -1);
                        if (ms < 0) {
-                               ast_log(LOG_DEBUG, "Hangup detected\n");
+                               ast_debug(1, "Hangup detected\n");
                                res = -1;
                                break;
                        }
                        f = ast_read(chan);
                        if (!f) {
-                               ast_log(LOG_DEBUG, "Null frame == hangup() detected\n");
+                               ast_debug(1, "Null frame == hangup() detected\n");
                                res = -1;
                                break;
                        }
                        if (f->frametype == AST_FRAME_VOICE) {
-                               res = write(fds[1], f->data, f->datalen);
+                               res = write(fds[1], f->data.ptr, f->datalen);
                                if (res < 0) {
                                        if (errno != EAGAIN) {
                                                ast_log(LOG_WARNING, "Write failed to pipe: %s\n", strerror(errno));
                                                res = -1;
+                                               ast_frfree(f);
                                                break;
                                        }
                                }
@@ -159,39 +192,25 @@ static int ices_exec(struct ast_channel *chan, void *data)
                        ast_frfree(f);
                }
        }
+       close(fds[0]);
        close(fds[1]);
-       LOCAL_USER_REMOVE(u);
+
        if (pid > -1)
                kill(pid, SIGKILL);
-       if (!res && oreadformat)
-               ast_set_read_format(chan, oreadformat);
+       if (!res && oreadformat.id)
+               ast_set_read_format(chan, &oreadformat);
+
        return res;
 }
 
-int unload_module(void)
+static int unload_module(void)
 {
-       STANDARD_HANGUP_LOCALUSERS;
        return ast_unregister_application(app);
 }
 
-int load_module(void)
+static int load_module(void)
 {
-       return ast_register_application(app, ices_exec, synopsis, descrip);
+       return ast_register_application_xml(app, ices_exec);
 }
 
-char *description(void)
-{
-       return tdesc;
-}
-
-int usecount(void)
-{
-       int res;
-       STANDARD_USECOUNT(res);
-       return res;
-}
-
-char *key()
-{
-       return ASTERISK_GPL_KEY;
-}
+AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Encode and Stream via icecast and ices");