tdb: support tdb_check() on r/o databases.

(Imported from SAMBA commit bc1c82ea137e1bf6cb55139a666c56ebb2226b23)

Author: Jeremy Allison <jra@samba.org>
Date:   Wed Jul 28 05:15:40 2010 -0700

Fix tdb_check() to work with read-only tdb databases. The function tdb_lockall() uses F_WRLCK internally, which doesn't work on a fd opened with O_RDONLY. Use tdb_lockall_read() instead.

Jeremy.

diff --git a/ccan/tdb/check.c b/ccan/tdb/check.c
index b3b8c23104e5a4d770672d15f68acc6e8d7f875a..c5469e9998122dc57eefcdb90ddb747cb99d684d 100644 (file)
--- a/ccan/tdb/check.c
+++ b/ccan/tdb/check.c
@@ -328,7 +328,7 @@ int tdb_check(struct tdb_context *tdb,
        bool found_recovery = false;
        tdb_len_t dead;
 
        bool found_recovery = false;
        tdb_len_t dead;
 

-       if (tdb_lockall(tdb) == -1)
+       if (tdb_lockall_read(tdb) == -1)

                return -1;
 
        /* Make sure we know true size of the underlying file. */
                return -1;
 
        /* Make sure we know true size of the underlying file. */


@@ -444,12 +444,12 @@ int tdb_check(struct tdb_context *tdb,
        }
 
        free(hashes);
        }
 
        free(hashes);

-       tdb_unlockall(tdb);
+       tdb_unlockall_read(tdb);

        return 0;
 
 free:
        free(hashes);
 unlock:
        return 0;
 
 free:
        free(hashes);
 unlock:

-       tdb_unlockall(tdb);
+       tdb_unlockall_read(tdb);

        return -1;
 }
        return -1;
 }