mirror/ git
1
0
Fork 0
mirror of https://github.com/git/git.git synced 2024-06-09 01:16:11 +02:00
Code

pseudoref: check return values from read_ref() 

These codepaths attempt to compare the "expected" current value with
the actual current value, but did not check if we successfully read
the current value before comparison.

Signed-off-by: David Turner <dturner@twopensource.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
David Turner 2015-07-15 18:05:28 -04:00 committed by Junio C Hamano
parent d96a53996b
commit 2c3aed1381
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
refs.c
View File

@ -2868,7 +2868,9 @@ static int write_pseudoref(const char *pseudoref, const unsigned char *sha1,
if (old_sha1) {
unsigned char actual_old_sha1[20];
read_ref(pseudoref, actual_old_sha1);
if (read_ref(pseudoref, actual_old_sha1))
die("could not read ref '%s'", pseudoref);
if (hashcmp(actual_old_sha1, old_sha1)) {
strbuf_addf(err, "Unexpected sha1 when writing %s", pseudoref);
rollback_lock_file(&lock);
@ -2904,7 +2906,8 @@ static int delete_pseudoref(const char *pseudoref, const unsigned char *old_sha1
LOCK_DIE_ON_ERROR);
if (fd < 0)
die_errno(_("Could not open '%s' for writing"), filename);
read_ref(pseudoref, actual_old_sha1);
if (read_ref(pseudoref, actual_old_sha1))
die("could not read ref '%s'", pseudoref);
if (hashcmp(actual_old_sha1, old_sha1)) {
warning("Unexpected sha1 when deleting %s", pseudoref);
rollback_lock_file(&lock);