coverity fix, slapd_rw_apply NULL filter

diff --git a/servers/slapd/sasl.c b/servers/slapd/sasl.c
index 7c02247dd6234710efbfaffa41f207a25b55cafc..9018185dcff5525941c0ff5bf25dce2a85e3570c 100644 (file)
--- a/servers/slapd/sasl.c
+++ b/servers/slapd/sasl.c
@@ -1121,8 +1121,12 @@ slapd_rw_apply( void *private, const char *filter, struct berval *val )
        ptr = op->ors_filterstr.bv_val = op->o_tmpalloc( rc + 1, op->o_tmpmemctx );
        if ( sl->filter.bv_len ) {
                ptr = lutil_strcopy( ptr, sl->filter.bv_val );
+       } else {
+               *ptr = '\0';
+       }
+       if ( filter ) {
+               strcpy( ptr, filter );
        }
-       strcpy( ptr, filter );
        op->ors_filter = str2filter_x( op, op->ors_filterstr.bv_val );
        if ( !op->ors_filter ) {
                op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );