+static char escape[128] = {
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 1, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 1, 0, 0, 0,
+
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 1
+};
+#define NEEDFLTESCAPE(c) ((c) & 0x80 || escape[ (unsigned)(c) ])
+
+/*
+ * compute the length of the escaped value
+ */
+ber_len_t
+ldap_bv2escaped_filter_value_len( struct berval *in )
+{
+ ber_len_t i, l;
+
+ assert( in != NULL );
+
+ if ( in->bv_len == 0 ) {
+ return 0;
+ }
+
+ for( l = 0, i = 0; i < in->bv_len; l++, i++ ) {
+ char c = in->bv_val[ i ];
+ if ( NEEDFLTESCAPE( c ) ) {
+ l += 2;
+ }
+ }
+
+ return l;
+}
+