wldap32: Fix handling of zero timeout value in ldap_search_extW.

dlls/wldap32/search.c

@@ -243,7 +243,7 @@ ULONG CDECL ldap_search_extW( WLDAP32_LDAP *ld, PWCHAR base, ULONG scope,
 #ifdef HAVE_LDAP
     char *baseU = NULL, *filterU = NULL, **attrsU = NULL;
     LDAPControl **serverctrlsU = NULL, **clientctrlsU = NULL;
-    struct timeval tv;
+    struct timeval tv, *tvp = NULL;
 
     ret = WLDAP32_LDAP_NO_MEMORY;
 
@@ -274,11 +274,15 @@ ULONG CDECL ldap_search_extW( WLDAP32_LDAP *ld, PWCHAR base, ULONG scope,
         if (!clientctrlsU) goto exit;
     }
 
-    tv.tv_sec = timelimit;
-    tv.tv_usec = 0;
+    if (timelimit)
+    {
+        tv.tv_sec = timelimit;
+        tv.tv_usec = 0;
+        tvp = &tv;
+    }
 
     ret = map_error( ldap_search_ext( ld, baseU, scope, filterU, attrsU, attrsonly,
-                                      serverctrlsU, clientctrlsU, &tv, sizelimit, (int *)message ));
+                                      serverctrlsU, clientctrlsU, tvp, sizelimit, (int *)message ));
 
 exit:
     strfreeU( baseU );

dlls/wldap32/tests/parse.c

@@ -86,6 +86,25 @@ static void test_ldap_parse_sort_control( LDAP *ld )
     ldap_controls_free( server_ctrls );
 }
 
+static void test_ldap_search_extW( LDAP *ld )
+{
+    ULONG ret, message, timelimit;
+    WCHAR base[] = {0}, filter[] = {'o','u','=','*',0};
+
+    timelimit = 20;
+    ret = ldap_search_extW( ld, base, LDAP_SCOPE_SUBTREE, filter, NULL, 0, NULL, NULL, timelimit, 0, &message );
+    if (ret == LDAP_SERVER_DOWN)
+    {
+        skip("test server can't be reached\n");
+        return;
+    }
+    ok( !ret, "ldap_search_extW failed 0x%08x\n", ret );
+
+    timelimit = 0;
+    ret = ldap_search_extW( ld, base, LDAP_SCOPE_SUBTREE, filter, NULL, 0, NULL, NULL, timelimit, 0, &message );
+    ok( !ret, "ldap_search_extW failed 0x%08x\n", ret );
+}
+
 START_TEST (parse)
 {
     LDAP *ld;
@@ -94,5 +113,6 @@ START_TEST (parse)
     ok( ld != NULL, "ldap_init failed\n" );
 
     test_ldap_parse_sort_control( ld );
+    test_ldap_search_extW( ld );
     ldap_unbind( ld );
 }