Unregister CLI commands on exit

This patch ensures that CLI commands enabled by DEBUG_FD_LEAKS and
DEBUG_THREADLOCALS are cleaned up properly on exit.

(closes issue ASTERISK-22238)
Reported by: Corey Farrell
Tested by: Corey Farrell
Patches:
    debug_cli_unregister.patch uploaded by Corey Farrell


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@397106 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/astfd.c

@@ -274,8 +274,14 @@ static char *handle_show_fd(struct ast_cli_entry *e, int cmd, struct ast_cli_arg
 
 static struct ast_cli_entry cli_show_fd = AST_CLI_DEFINE(handle_show_fd, "Show open file descriptors");
 
+static void fd_shutdown(void)
+{
+	ast_cli_unregister(&cli_show_fd);
+}
+
 int ast_fd_init(void)
 {
+	ast_register_atexit(fd_shutdown);
 	return ast_cli_register(&cli_show_fd);
 }
 

main/threadstorage.c

@@ -249,10 +249,16 @@ static struct ast_cli_entry cli[] = {
 	AST_CLI_DEFINE(handle_cli_threadstorage_show_summary,     "Summarize outstanding memory allocations")
 };
 
+static void threadstorage_shutdown(void)
+{
+	ast_cli_unregister_multiple(cli, ARRAY_LEN(cli));
+}
+
 void threadstorage_init(void)
 {
 	pthread_mutex_init(&threadstoragelock, NULL);
 	ast_cli_register_multiple(cli, ARRAY_LEN(cli));
+	ast_register_atexit(threadstorage_shutdown);
 }
 
 #endif /* !defined(DEBUG_THREADLOCALS) */