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resolve_ref(): do not follow incorrectly-formatted symbolic refs

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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>
This commit is contained in:
Michael Haggerty
2011-09-15 23:10:36 +02:00
committed by Junio C Hamano
parent c224ca7f66
commit 313fb010da
1 changed files with 5 additions and 0 deletions
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5
refs.c
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@ -581,6 +581,11 @@ const char *resolve_ref(const char *ref, unsigned char *sha1, int reading, int *
buf = buffer + 4; buf = buffer + 4;
while (isspace(*buf)) while (isspace(*buf))
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); ref = strcpy(ref_buffer, buf);
if (flag) if (flag)
*flag |= REF_ISSYMREF; *flag |= REF_ISSYMREF;