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| author | brian m. carlson <sandals@crustytoothpaste.net> | 2019-02-19 03:05:19 +0300 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2019-04-01 05:57:39 +0300 |
| commit | 87003d2c94985f9b3c5ef23b9c042ae3b4ede6bb (patch) | |
| tree | 2b8b0ca9938deb953df5ae6733196a6c99ad9c91 /builtin/get-tar-commit-id.c | |
| parent | 3548726cd7f5c5d2d8a1359ac21ae0354bd4c895 (diff) | |
builtin/get-tar-commit-id: make hash size independent
To make this code independent of the hash size, verify that the length
of the comment is equal to that of any supported hash algorithm.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/get-tar-commit-id.c')
| -rw-r--r-- | builtin/get-tar-commit-id.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/builtin/get-tar-commit-id.c b/builtin/get-tar-commit-id.c index 312e44ed05f..491af9202dc 100644 --- a/builtin/get-tar-commit-id.c +++ b/builtin/get-tar-commit-id.c @@ -41,7 +41,8 @@ int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix) if (!skip_prefix(end, " comment=", &comment)) return 1; len -= comment - content; - if (len != GIT_SHA1_HEXSZ + 1) + if (len < 1 || !(len % 2) || + hash_algo_by_length((len - 1) / 2) == GIT_HASH_UNKNOWN) return 1; if (write_in_full(1, comment, len) < 0) |