diff options
Diffstat (limited to 'sha1_name.c')
| -rw-r--r-- | sha1_name.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sha1_name.c b/sha1_name.c index 00fc415178..77299257bf 100644 --- a/sha1_name.c +++ b/sha1_name.c @@ -399,6 +399,10 @@ static int get_sha1_basic(const char *str, int len, unsigned char *sha1) unsigned long co_time; int co_tz, co_cnt; + /* a @{-N} placed anywhere except the start is an error */ + if (str[at+2] == '-') + return -1; + /* Is it asking for N-th entry, or approxidate? */ for (i = nth = 0; 0 <= nth && i < reflog_len; i++) { char ch = str[at+2+i]; |