Const-ify the world (or at least a good part of it)

This patch adds 'const' tags to a number of Asterisk APIs where they are appropriate (where the API already demanded that the function argument not be modified, but the compiler was not informed of that fact). The list includes:

- CLI command handlers
- CLI command handler arguments
- AGI command handlers
- AGI command handler arguments
- Dialplan application handler arguments
- Speech engine API function arguments

In addition, various file-scope and function-scope constant arrays got 'const' and/or 'static' qualifiers where they were missing.

Review: https://reviewboard.asterisk.org/r/251/



git-svn-id: http://svn.digium.com/svn/asterisk/trunk@196072 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 6 insertions, 4 deletions

diff --git a/apps/app_ivrdemo.c b/apps/app_ivrdemo.c
index 13f4bcc9c..a9c61209a 100644
--- a/apps/app_ivrdemo.c
+++ b/apps/app_ivrdemo.c
@@ -59,7 +59,7 @@ static char *app = "IVRDemo";
 
 static int ivr_demo_func(struct ast_channel *chan, void *data)
 {
-	ast_verbose("IVR Demo, data is %s!\n", (char *)data);
+	ast_verbose("IVR Demo, data is %s!\n", (char *) data);
 	return 0;
 }
 
@@ -93,22 +93,24 @@ AST_IVR_DECLARE_MENU(ivr_demo, "IVR Demo Main Menu", 0,
 	{ NULL },
 });
 
-
-static int skel_exec(struct ast_channel *chan, void *data)
+static int skel_exec(struct ast_channel *chan, const char *data)
 {
 	int res=0;
+	char *tmp;
 	
 	if (ast_strlen_zero(data)) {
 		ast_log(LOG_WARNING, "skel requires an argument (filename)\n");
 		return -1;
 	}
 	
+	tmp = ast_strdupa(data);
+
 	/* Do our thing here */
 
 	if (chan->_state != AST_STATE_UP)
 		res = ast_answer(chan);
 	if (!res)
-		res = ast_ivr_menu_run(chan, &ivr_demo, data);
+		res = ast_ivr_menu_run(chan, &ivr_demo, tmp);
 	
 	return res;
 }