res_pjsip_log_forwarder.c: Add CLI "pjsip show buildopts".

PJPROJECT has a function available to dump the compile time
options used when building the library.

* Add CLI "pjsip show buildopts" command.

* Update contrib/scripts/autosupport to get pjproject information.

Change-Id: Id93a6a916d765b2a2e5a1aeb54caaf83206be748

contrib/scripts/autosupport

@@ -3,7 +3,7 @@
 # Autosupport Version 2.1.0
 # Collect support information
 #
-# Copyright (C) 2005-2013, Digium, Inc.
+# Copyright (C) 2005-2016, Digium, Inc.
 #
 # Written by John Bigelow (support@digium.com)
 #            Charles Moye (cmoye@digium.com)
@@ -38,7 +38,7 @@ then
   -h | --help)
     echo
     echo "Digium autosupport script"
-    echo "Copyright (C) 2005-2013, Digium, Inc."
+    echo "Copyright (C) 2005-2016, Digium, Inc."
     echo "Licensed under the terms of the GNU General Public License"
     echo
     echo "usage: autosupport [prefix]"
@@ -186,7 +186,9 @@ asterisk -V >> $OUTPUT;
 echo >> $OUTPUT;
 # Add check to see if asterisk is running.
 if [ -e /var/run/asterisk.ctl ] || [ -e /var/run/asterisk/asterisk.ctl ]; then
-  for command in "core show version" "pri show version" "dahdi show version" "core show translation" \
+  for command in "core show version" "pri show version" "dahdi show version" \
+      "pjsip show version" "pjsip show buildopts" \
+      "core show translation" \
       "core show uptime" "core show settings" "core show sysinfo" "core show channels" \
       "pri show spans" "dahdi show status" "dahdi show channels" "dahdi show channel 1" \
       "pjsip show endpoints" "pjsip show registrations" "pjsip list channels" \
@@ -194,9 +196,9 @@ if [ -e /var/run/asterisk.ctl ] || [ -e /var/run/asterisk/asterisk.ctl ]; then
       "show g729" "g729 show version" "g729 show licenses" "g729 show hostid" \
       "digium_phones show version" "digium_phones show alerts" "digium_phones show applications" \
       "digium_phones show firmwares" "digium_phones show lines" "digium_phones show networks" \
-			"digium_phones show phones" "digium_phones show sessions" "digium_phones show settings" \
+      "digium_phones show phones" "digium_phones show sessions" "digium_phones show settings" \
       "digium_phones show translations" ;
-	do
+  do
     echo "asterisk -rx \"$command\"" >> $OUTPUT;
     asterisk -rx "$command" >> $OUTPUT;
     echo >> $OUTPUT;

res/res_pjsip_log_forwarder.c

@@ -46,10 +46,24 @@ ASTERISK_REGISTER_FILE()
 
 #include "asterisk/logger.h"
 #include "asterisk/module.h"
+#include "asterisk/cli.h"
 
 static pj_log_func *log_cb_orig;
 static unsigned decor_orig;
 
+/*! Protection from other CLI instances. */
+AST_MUTEX_DEFINE_STATIC(show_buildopts_lock);
+
+struct pjsip_show_buildopts {
+	pthread_t thread;
+	int fd;
+};
+
+static struct pjsip_show_buildopts show_buildopts = {
+	.thread = AST_PTHREADT_NULL,
+	.fd = -1,
+};
+
 static void log_cb(int level, const char *data, int len)
 {
 	int ast_level;
@@ -59,6 +73,15 @@ static void log_cb(int level, const char *data, int len)
 	const char *log_func = "<?>";
 	int mod_level;
 
+	if (show_buildopts.fd != -1 && show_buildopts.thread == pthread_self()) {
+		/*
+		 * We are handling the CLI command dumping the
+		 * PJPROJECT compile time config option settings.
+		 */
+		ast_cli(show_buildopts.fd, "%s\n", data);
+		return;
+	}
+
 	/* Lower number indicates higher importance */
 	switch (level) {
 	case 0: /* level zero indicates fatal error, according to docs */
@@ -86,6 +109,40 @@ static void log_cb(int level, const char *data, int len)
 	ast_log(ast_level, log_source, log_line, log_func, "\t%s\n", data);
 }
 
+static char *handle_pjsip_show_buildopts(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
+{
+	switch(cmd) {
+	case CLI_INIT:
+		e->command = "pjsip show buildopts";
+		e->usage =
+			"Usage: pjsip show buildopts\n"
+			"       Show the compile time config of pjproject that res_pjsip is\n"
+			"       running against.\n";
+		return NULL;
+	case CLI_GENERATE:
+		return NULL;
+	}
+
+	ast_cli(a->fd, "PJPROJECT compile time config currently running against:\n");
+
+	/* Protect from other CLI instances trying to do this at the same time. */
+	ast_mutex_lock(&show_buildopts_lock);
+
+	show_buildopts.thread = pthread_self();
+	show_buildopts.fd = a->fd;
+	pj_dump_config();
+	show_buildopts.fd = -1;
+	show_buildopts.thread = AST_PTHREADT_NULL;
+
+	ast_mutex_unlock(&show_buildopts_lock);
+
+	return CLI_SUCCESS;
+}
+
+static struct ast_cli_entry pjsip_cli[] = {
+	AST_CLI_DEFINE(handle_pjsip_show_buildopts, "Show the compiled config of pjproject in use"),
+};
+
 static int load_module(void)
 {
 	pj_init();
@@ -102,11 +159,15 @@ static int load_module(void)
 	pj_log_set_decor(PJ_LOG_HAS_SENDER | PJ_LOG_HAS_INDENT);
 	pj_log_set_log_func(log_cb);
 
+	ast_cli_register_multiple(pjsip_cli, ARRAY_LEN(pjsip_cli));
+
 	return AST_MODULE_LOAD_SUCCESS;
 }
 
 static int unload_module(void)
 {
+	ast_cli_unregister_multiple(pjsip_cli, ARRAY_LEN(pjsip_cli));
+
 	pj_log_set_log_func(log_cb_orig);
 	pj_log_set_decor(decor_orig);