diff options
Diffstat (limited to 'sha1_name.c')
| -rw-r--r-- | sha1_name.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sha1_name.c b/sha1_name.c index fa85d8a..d67de18 100644 --- a/sha1_name.c +++ b/sha1_name.c @@ -186,16 +186,18 @@ static int get_short_sha1(const char *name, int len, unsigned char *sha1, const char *find_unique_abbrev(const unsigned char *sha1, int len) { - int status; + int status, is_null; static char hex[41]; + is_null = !memcmp(sha1, null_sha1, 20); memcpy(hex, sha1_to_hex(sha1), 40); if (len == 40) return hex; while (len < 40) { unsigned char sha1_ret[20]; status = get_short_sha1(hex, len, sha1_ret, 1); - if (!status) { + if (!status || + (is_null && status != SHORT_NAME_AMBIGUOUS)) { hex[len] = 0; return hex; } |