constify a couple of function arguments

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@20138 65c4cc65-6c06-0410-ace0-fbb531ad65f3

include/asterisk/pbx.h

@@ -98,13 +98,12 @@ struct ast_timing {
 	unsigned int minmask[24];		/*!< Mask for minute */
 };
 
-int ast_build_timing(struct ast_timing *i, char *info);
-int ast_check_timing(struct ast_timing *i);
+int ast_build_timing(struct ast_timing *i, const char *info);
+int ast_check_timing(const struct ast_timing *i);
 
 struct ast_pbx {
-        int dtimeout;                                   /*!< Timeout between digits (seconds) */
-        int rtimeout;                                   /*!< Timeout for response
-							   (seconds) */
+	int dtimeout;				/*!< Timeout between digits (seconds) */
+	int rtimeout;				/*!< Timeout for response (seconds) */
 };
 
 

pbx.c

@@ -3809,7 +3809,7 @@ static char *months[] =
 	NULL,
 };
 
-int ast_build_timing(struct ast_timing *i, char *info_in)
+int ast_build_timing(struct ast_timing *i, const char *info_in)
 {
 	char info_save[256];
 	char *info;
@@ -3835,7 +3835,7 @@ int ast_build_timing(struct ast_timing *i, char *info_in)
 	return 1;
 }
 
-int ast_check_timing(struct ast_timing *i)
+int ast_check_timing(const struct ast_timing *i)
 {
 	struct tm tm;
 	time_t t = time(NULL);