resolve_ref(): do not follow incorrectly-formatted symbolic refs
Emit a warning and fail if a symbolic reference refers to an
incorrectly-formatted refname.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/refs.c b/refs.c
index 473f7f6..b055501 100644
--- a/refs.c
+++ b/refs.c
@@ -581,6 +581,11 @@
buf = buffer + 4;
while (isspace(*buf))
buf++;
+ if (check_refname_format(buf, REFNAME_ALLOW_ONELEVEL)) {
+ warning("symbolic reference in %s is formatted incorrectly",
+ path);
+ return NULL;
+ }
ref = strcpy(ref_buffer, buf);
if (flag)
*flag |= REF_ISSYMREF;
