From b4164ccf2e1fcd35097dbb67470a00cb3da00735 Mon Sep 17 00:00:00 2001
From: Thierry Bordaz <tbordaz@redhat.com>
Date: Sep 18 2018 12:33:20 +0000
Subject: Ticket 49954 - On s390x arch retrieved DB page size is stored as size_t rather than uint32_t


Bug Description:
	The page size is retrieved from uint32_t dblayer_page_size.
	Later it is stored in a size_t variable with a cast.
	Depending on little/big endian the page size can be stored in the upper/lower bits of the 64bits variable.
	Later the variable is used to set the page size of a database file using the lower bits (uint32_t) that are zeroed.

Fix Description:
	The BDB callback to set the pagesize, expects a a uint32_t.
	Make sure the field containing it is uint32_t (instead of size_t) as the page
	size is retrieved as a uint32_t as well (dblayer_page_size/BACK_INFO_INDEXPAGESIZE)

https://pagure.io/389-ds-base/issue/49954

Reviewed by: Ludwig Krispen

Platforms tested: F27

Flag Day: no

Doc impact: no

---

diff --git a/ldap/servers/plugins/replication/cl5_api.c b/ldap/servers/plugins/replication/cl5_api.c
index 89ae995..65801bc 100644
--- a/ldap/servers/plugins/replication/cl5_api.c
+++ b/ldap/servers/plugins/replication/cl5_api.c
@@ -1852,7 +1852,7 @@ _cl5AppInit(void)
 {
     int rc = -1; /* initialize to failure */
     DB_ENV *dbEnv = NULL;
-    size_t pagesize = 0;
+    uint32_t pagesize = 0;
     int openflags = 0;
     char *cookie = NULL;
     Slapi_Backend *be = slapi_get_first_backend(&cookie);
diff --git a/ldap/servers/plugins/replication/cl5_api.h b/ldap/servers/plugins/replication/cl5_api.h
index 419dc2d..4331fdb 100644
--- a/ldap/servers/plugins/replication/cl5_api.h
+++ b/ldap/servers/plugins/replication/cl5_api.h
@@ -39,7 +39,7 @@
 /* changelog configuration structure */
 typedef struct cl5dbconfig
 {
-    size_t pageSize;           /* page size in bytes */
+    uint32_t pageSize;           /* page size in bytes */
     PRInt32 fileMode;          /* file mode */
     char *encryptionAlgorithm; /* nsslapd-encryptionalgorithm */
     char *symmetricKey;