data: Properly access formats in capabilities structure when adding codecs.

Formats within a capabilities structure are addressed starting at 0, not 1.
Assuming 1 causes it to exceed an array.

ASTERISK-24389 #close
Reported by: Kevin Harwell
........

Merged revisions 424752 from http://svn.asterisk.org/svn/asterisk/branches/13

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@424753 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/main/data.c b/main/data.c
index 746c52dfd50b9ffbf2f7dd35f62153eefd715ad7..16571c8e49630f36c3e0c0c7d79ee3f84b99bbed 100644 (file)
--- a/main/data.c
+++ b/main/data.c
@@ -3146,7 +3146,7 @@ int ast_data_add_codecs(struct ast_data *root, const char *node_name, struct ast
        }
 
        count = ast_format_cap_count(cap);
-       for (i = 1; i <= count; ++i) {
+       for (i = 0; i < count; ++i) {
                struct ast_format *fmt;
 
                fmt = ast_format_cap_get_format(cap, i);