When checking for an encoded character, make sure the string isn't blank, first.

(Closes issue #13470)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@142748 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/main/app.c b/main/app.c
index 82aab2f..b7429bf 100644 (file)
--- a/main/app.c
+++ b/main/app.c
@@ -1748,6 +1748,11 @@ int ast_get_encoded_char(const char *stream, char *result, size_t *consumed)
        int i;
        *consumed = 1;
        *result = 0;
+       if (ast_strlen_zero(stream)) {
+               *consumed = 0;
+               return -1;
+       }
+
        if (*stream == '\\') {
                *consumed = 2;
                switch (*(stream + 1)) {