From c771ae28e28b2971869b7801ffc7961f4dcb6544 Mon Sep 17 00:00:00 2001

From: Panu Matilainen <pmatilai@redhat.com>

Date: Thu, 10 Jun 2021 10:32:12 +0300

Subject: [PATCH] Support hash v8 databases from BDB < 4.6 in bdb_ro

In Hash v8 databases page type differs from newer ones to denote

the difference between sorted and unsorted pages.

Fixes reading rpm databases from older distros like SLES 11 and RHEL 5

(RhBug:1965147)

---

 lib/backend/bdb_ro.c | 4 ++--

 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/backend/bdb_ro.c b/lib/backend/bdb_ro.c

index 2667ec845..695ef78e3 100644

--- a/lib/backend/bdb_ro.c

+++ b/lib/backend/bdb_ro.c

@@ -276,7 +276,7 @@ static int hash_lookup(struct bdb_cur *cur, const unsigned char *key, unsigned i

     pg = hash_bucket_to_page(cur->db, bucket);

     if (bdb_getpage(cur->db, cur->page, pg))

 	return -1;

-    if (cur->page[25] != 8 && cur->page[25] != 13)

+    if (cur->page[25] != 8 && cur->page[25] != 13 && cur->page[25] != 2)

 	return -1;

     cur->idx = (unsigned int)-2;

     cur->numidx = *(uint16_t *)(cur->page + 20);

@@ -323,7 +323,7 @@ static int hash_next(struct bdb_cur *cur)

 	    }

 	    if (bdb_getpage(cur->db, cur->page, pg))

 		return -1;

-	    if (cur->page[25] != 8 && cur->page[25] != 13)

+	    if (cur->page[25] != 8 && cur->page[25] != 13 && cur->page[25] != 2)

 		return -1;

 	    cur->numidx = *(uint16_t *)(cur->page + 20);

 	    continue;

-- 

2.33.1