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, 3 insertions, 3 deletions

diff --git a/apps/app_system.c b/apps/app_system.c
index e06a9cb5d..6fa2fc962 100644
--- a/apps/app_system.c
+++ b/apps/app_system.c
@@ -100,7 +100,7 @@ static char *app2 = "TrySystem";
 
 static char *chanvar = "SYSTEMSTATUS";
 
-static int system_exec_helper(struct ast_channel *chan, void *data, int failmode)
+static int system_exec_helper(struct ast_channel *chan, const char *data, int failmode)
 {
 	int res = 0;
 	struct ast_str *buf = ast_str_thread_get(&buf_buf, 16);
@@ -140,12 +140,12 @@ static int system_exec_helper(struct ast_channel *chan, void *data, int failmode
 	return res;
 }
 
-static int system_exec(struct ast_channel *chan, void *data)
+static int system_exec(struct ast_channel *chan, const char *data)
 {
 	return system_exec_helper(chan, data, -1);
 }
 
-static int trysystem_exec(struct ast_channel *chan, void *data)
+static int trysystem_exec(struct ast_channel *chan, const char *data)
 {
 	return system_exec_helper(chan, data, 0);
 }