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authorSebastian Lackner <sebastian@fds-team.de>2015-07-04 18:39:42 +0200
committerAllan McRae <allan@archlinux.org>2015-08-08 10:45:09 +1000
commit578035075108a90d20f084f077badf05d1c8527c (patch)
treea6213e7ec05487053d5b7c25879c35f30e6f7808 /lib
parentae97082e98b6c3984799ba9f3f6ccc6ef5da6034 (diff)
libalpm: Force update when database is marked as corrupted.
When a database and its signature is updated non-atomically on a server, there is a window where a user may update the database but grab the old signature. The database is marked as invalid by libalpm, which can be fixed by forcing a refresh (assuming the server has caught up and the user realizes what has happened) or with a future update of the repo. Work around this by forcing a repository refresh whenever a database is invalid. Signed-off-by: Sebastian Lackner <sebastian@fds-team.de> Signed-off-by: Allan McRae <allan@archlinux.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/libalpm/be_sync.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/libalpm/be_sync.c b/lib/libalpm/be_sync.c
index 621321d1..25c8cbec 100644
--- a/lib/libalpm/be_sync.c
+++ b/lib/libalpm/be_sync.c
@@ -198,6 +198,11 @@ int SYMEXPORT alpm_db_update(int force, alpm_db_t *db)
return -1;
}
+ /* force update of invalid databases to fix potential mismatched database/signature */
+ if(db->status & DB_STATUS_INVALID) {
+ force = 1;
+ }
+
/* make sure we have a sane umask */
oldmask = umask(0022);