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From: "brian m. carlson" <sandals@crustytoothpaste.net>
To: <git@vger.kernel.org>
Cc: "René Scharfe" <l.s.r@web.de>, "Duy Nguyen" <pclouds@gmail.com>
Subject: [PATCH 30/31] Git.pm: make hash size independent
Date: Tue, 12 Feb 2019 01:22:55 +0000	[thread overview]
Message-ID: <20190212012256.1005924-31-sandals@crustytoothpaste.net> (raw)
In-Reply-To: <20190212012256.1005924-1-sandals@crustytoothpaste.net>

The cat_blob function was matching on exactly 40 hex characters.  This
won't work with SHA-256, which uses 64-character hex object IDs.  While
it should be fine to simply match any number of hex characters since the
output is space delimited, be extra safe by matching either exactly 40
or exactly 64 hex characters.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
---
 perl/Git.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/perl/Git.pm b/perl/Git.pm
index d856930b2e..62c472e0ce 100644
--- a/perl/Git.pm
+++ b/perl/Git.pm
@@ -980,7 +980,7 @@ sub cat_blob {
 		return -1;
 	}
 
-	if ($description !~ /^[0-9a-fA-F]{40} \S+ (\d+)$/) {
+	if ($description !~ /^[0-9a-fA-F]{40}(?:[0-9a-fA-F]{24})? \S+ (\d+)$/) {
 		carp "Unexpected result returned from git cat-file";
 		return -1;
 	}

  parent reply	other threads:[~2019-02-12  1:23 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-12  1:22 [PATCH 00/31] Hash function transition part 16 brian m. carlson
2019-02-12  1:22 ` [PATCH 01/31] t/lib-submodule-update: use appropriate length constant brian m. carlson
2019-02-12  1:22 ` [PATCH 02/31] pack-bitmap: make bitmap header handling hash agnostic brian m. carlson
2019-02-12  1:22 ` [PATCH 03/31] pack-bitmap: convert struct stored_bitmap to object_id brian m. carlson
2019-02-12  1:22 ` [PATCH 04/31] pack-bitmap: replace sha1_to_hex brian m. carlson
2019-02-12  6:37   ` Jeff King
2019-02-13  0:00     ` brian m. carlson
2019-02-14  4:41       ` Jeff King
2019-02-12  1:22 ` [PATCH 05/31] pack-bitmap: switch hard-coded constants to the_hash_algo brian m. carlson
2019-02-12 11:13   ` Ævar Arnfjörð Bjarmason
2019-02-12  1:22 ` [PATCH 06/31] submodule: avoid hard-coded constants brian m. carlson
2019-02-12  1:22 ` [PATCH 07/31] notes-merge: switch to use the_hash_algo brian m. carlson
2019-02-12  1:22 ` [PATCH 08/31] notes: make hash size independent brian m. carlson
2019-02-12  1:37   ` Eric Sunshine
2019-02-12  1:42     ` brian m. carlson
2019-02-12  1:22 ` [PATCH 09/31] notes: replace sha1_to_hex brian m. carlson
2019-02-12  1:22 ` [PATCH 10/31] object-store: rename and expand packed_git's sha1 member brian m. carlson
2019-02-12  3:32   ` Eric Sunshine
2019-02-14  3:33     ` brian m. carlson
2019-02-12  1:22 ` [PATCH 11/31] builtin/name-rev: make hash-size independent brian m. carlson
2019-02-12  1:22 ` [PATCH 12/31] fast-import: " brian m. carlson
2019-02-12  3:44   ` Eric Sunshine
2019-02-12 23:36     ` brian m. carlson
2019-02-12  1:22 ` [PATCH 13/31] fast-import: replace sha1_to_hex brian m. carlson
2019-02-12  1:22 ` [PATCH 14/31] builtin/am: make hash size independent brian m. carlson
2019-02-12  1:22 ` [PATCH 15/31] builtin/pull: make hash-size independent brian m. carlson
2019-02-12  3:47   ` Eric Sunshine
2019-02-12  1:22 ` [PATCH 16/31] http-push: convert to use the_hash_algo brian m. carlson
2019-02-12  1:22 ` [PATCH 17/31] http-backend: allow 64-character hex names brian m. carlson
2019-02-12  1:22 ` [PATCH 18/31] http-push: remove remaining uses of sha1_to_hex brian m. carlson
2019-02-12  1:22 ` [PATCH 19/31] http-walker: replace sha1_to_hex brian m. carlson
2019-02-12  3:51   ` Eric Sunshine
2019-02-12  1:22 ` [PATCH 20/31] http: replace hard-coded constant with the_hash_algo brian m. carlson
2019-02-12  1:22 ` [PATCH 21/31] http: compute hash of downloaded objects using the_hash_algo brian m. carlson
2019-02-12  1:22 ` [PATCH 22/31] http: replace sha1_to_hex brian m. carlson
2019-02-12  1:22 ` [PATCH 23/31] remote-curl: make hash size independent brian m. carlson
2019-02-12 11:11   ` Ævar Arnfjörð Bjarmason
2019-02-12  1:22 ` [PATCH 24/31] archive-tar: " brian m. carlson
2019-02-12  7:20   ` René Scharfe
2019-02-12 17:33     ` René Scharfe
2019-02-13  0:11       ` brian m. carlson
2019-02-12  1:22 ` [PATCH 25/31] archive: convert struct archiver_args to object_id brian m. carlson
2019-02-12  1:22 ` [PATCH 26/31] refspec: make hash size independent brian m. carlson
2019-02-12  1:22 ` [PATCH 27/31] builtin/difftool: use parse_oid_hex brian m. carlson
2019-02-12  8:27   ` Eric Sunshine
2019-02-12  1:22 ` [PATCH 28/31] dir: make untracked cache extension hash size independent brian m. carlson
2019-02-12 11:08   ` Ævar Arnfjörð Bjarmason
2019-02-13  0:30     ` brian m. carlson
2019-02-12  1:22 ` [PATCH 29/31] read-cache: read data in a hash-independent way brian m. carlson
2019-02-12  1:22 ` brian m. carlson [this message]
2019-02-12 10:59   ` [PATCH 30/31] Git.pm: make hash size independent Ævar Arnfjörð Bjarmason
2019-02-18 19:09     ` brian m. carlson
2019-02-18 21:00       ` Ævar Arnfjörð Bjarmason
2019-02-12  1:22 ` [PATCH 31/31] gitweb: " brian m. carlson
2019-02-12 10:57   ` Ævar Arnfjörð Bjarmason
2019-02-12 11:15 ` [PATCH 00/31] Hash function transition part 16 Ævar Arnfjörð Bjarmason

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