Bug 5858 - Make the chanvars.c functions return a 'const char *'

This should prevent us from unintentionally changing variable
values when they're returned from pbx_builtin_getvar_helper.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@7304 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 2 insertions, 2 deletions

diff --git a/frame.c b/frame.c
index fa5538f36..a5a9cfdf5 100644
--- a/frame.c
+++ b/frame.c
@@ -539,7 +539,7 @@ static struct ast_codec_alias_table {
 	{"g723.1","g723"},
 };
 
-static char *ast_expand_codec_alias(char *in) {
+static const char *ast_expand_codec_alias(const char *in) {
 	int x = 0;
 
 	for (x = 0; x < sizeof(ast_codec_alias_table) / sizeof(struct ast_codec_alias_table) ; x++) {
@@ -549,7 +549,7 @@ static char *ast_expand_codec_alias(char *in) {
 	return in;
 }
 
-int ast_getformatbyname(char *name)
+int ast_getformatbyname(const char *name)
 {
 	int x = 0, all = 0, format = 0;