--- samba-3.0.9/source/lib/gencache.c.orig	2004-11-16 06:03:19 +0300

+++ samba-3.0.9/source/lib/gencache.c	2004-11-21 01:49:29 +0300

@@ -28,9 +28,13 @@

 #define TIMEOUT_LEN 12

 #define CACHE_DATA_FMT	"%12u/%s"

+typedef enum {

+        GENCACHE_RDRW,

+        GENCACHE_RDONLY

+} gencache_access_t;

 static TDB_CONTEXT *cache;

-

+static gencache_access_t cache_type;

 /**

  * @file gencache.c

  * @brief Generic, persistent and shared between processes cache mechanism

@@ -64,6 +68,15 @@

 	cache = tdb_open_log(cache_fname, 0, TDB_DEFAULT,

 	                     O_RDWR|O_CREAT, 0644);

+        cache_type = GENCACHE_RDRW;

+        

+        if (!cache) {

+		DEBUG(5, ("Opening cache file at %s in read-write mode failed, try to open it read-only\n",

+                          cache_fname));

+	        cache = tdb_open_log(cache_fname, 0, TDB_DEFAULT,

+	                             O_RDONLY, 0644);

+                cache_type = GENCACHE_RDONLY;

+        }

 	SAFE_FREE(cache_fname);

 	if (!cache) {

@@ -111,7 +124,7 @@

 	/* fail completely if get null pointers passed */

 	SMB_ASSERT(keystr && value);

-	if (!gencache_init()) return False;

+	if (!gencache_init() || (cache_type == GENCACHE_RDONLY)) return False;

 	asprintf(&valstr, CACHE_DATA_FMT, (int)timeout, value);

 	if (!valstr)

@@ -156,7 +169,7 @@

 	/* fail completely if get null pointers passed */

 	SMB_ASSERT(keystr && valstr);

-	if (!gencache_init()) return False;

+	if (!gencache_init() || (cache_type == GENCACHE_RDONLY)) return False;

 	/* 

 	 * Check whether entry exists in the cache

@@ -207,7 +220,7 @@

 	/* fail completely if get null pointers passed */

 	SMB_ASSERT(keystr);

-	if (!gencache_init()) return False;	

+	if (!gencache_init() || (cache_type == GENCACHE_RDONLY)) return False;	

 	keybuf.dptr = strdup(keystr);

 	keybuf.dsize = strlen(keystr)+1;