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refs.c: off-by-one fix.

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Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2005-12-15 18:52:51 -08:00
parent ee34518d62
commit 06bf6ac424
1 changed files with 5 additions and 2 deletions
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refs.c
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@ -346,8 +346,11 @@ int check_ref_format(const char *ref)
if (level < 2) if (level < 2)
return -1; /* at least of form "heads/blah" */ return -1; /* at least of form "heads/blah" */
/* do not allow ref name to end in "HEAD" */ /* Do not allow ref name to end in "HEAD"
if (cp - ref > 4 && !strcmp(cp - 4, "HEAD")) * Note that cp is poiting at one past NUL at the end.
* i.e. cp[-1] = NUL.
*/
if (5 <= cp - ref && !strcmp(cp - 5, "HEAD"))
return -1; return -1;
return 0; return 0;