+void
+ldap_matchingruleuse_free( LDAPMatchingRuleUse * mru )
+{
+ LDAP_FREE(mru->mru_oid);
+ LDAP_VFREE(mru->mru_names);
+ LDAP_FREE(mru->mru_desc);
+ LDAP_VFREE(mru->mru_applies_oids);
+ free_extensions(mru->mru_extensions);
+ LDAP_FREE(mru);
+}
+
+LDAPMatchingRuleUse *
+ldap_str2matchingruleuse( const char * s, int * code, const char ** errp, const int flags )
+{
+ int kind;
+ const char * ss = s;
+ char * sval;
+ int seen_name = 0;
+ int seen_desc = 0;
+ int seen_obsolete = 0;
+ int seen_applies = 0;
+ LDAPMatchingRuleUse * mru;
+ char ** ext_vals;
+ const char * savepos;
+
+ if ( !s ) {
+ *code = LDAP_SCHERR_EMPTY;
+ *errp = "";
+ return NULL;
+ }
+
+ *errp = s;
+ mru = LDAP_CALLOC(1,sizeof(LDAPMatchingRuleUse));
+
+ if ( !mru ) {
+ *code = LDAP_SCHERR_OUTOFMEM;
+ return NULL;
+ }
+
+ kind = get_token(&ss,&sval);
+ if ( kind != TK_LEFTPAREN ) {
+ *code = LDAP_SCHERR_NOLEFTPAREN;
+ LDAP_FREE(sval);
+ ldap_matchingruleuse_free(mru);
+ return NULL;
+ }
+
+ parse_whsp(&ss);
+ savepos = ss;
+ mru->mru_oid = parse_numericoid(&ss,code,flags);
+ if ( !mru->mru_oid ) {
+ if ( flags & LDAP_SCHEMA_ALLOW_NO_OID ) {
+ /* Backtracking */
+ ss = savepos;
+ kind = get_token(&ss,&sval);
+ if ( kind == TK_BAREWORD ) {
+ if ( !strcmp(sval, "NAME") ||
+ !strcmp(sval, "DESC") ||
+ !strcmp(sval, "OBSOLETE") ||
+ !strcmp(sval, "APPLIES") ||
+ !strncmp(sval, "X-", 2) ) {
+ /* Missing OID, backtrack */
+ ss = savepos;
+ } else {
+ /* Non-numerical OID, ignore */
+ }
+ }
+ LDAP_FREE(sval);
+ } else {
+ *errp = ss;
+ ldap_matchingruleuse_free(mru);
+ return NULL;
+ }
+ }
+ parse_whsp(&ss);
+
+ /*
+ * Beyond this point we will be liberal and accept the items
+ * in any order.
+ */
+ while (1) {
+ kind = get_token(&ss,&sval);
+ switch (kind) {
+ case TK_EOS:
+ *code = LDAP_SCHERR_NORIGHTPAREN;
+ *errp = ss;
+ ldap_matchingruleuse_free(mru);
+ return NULL;
+ case TK_RIGHTPAREN:
+ return mru;
+ case TK_BAREWORD:
+ if ( !strcmp(sval,"NAME") ) {
+ LDAP_FREE(sval);
+ if ( seen_name ) {
+ *code = LDAP_SCHERR_DUPOPT;
+ *errp = ss;
+ ldap_matchingruleuse_free(mru);
+ return(NULL);
+ }
+ seen_name = 1;
+ mru->mru_names = parse_qdescrs(&ss,code);
+ if ( !mru->mru_names ) {
+ if ( *code != LDAP_SCHERR_OUTOFMEM )
+ *code = LDAP_SCHERR_BADNAME;
+ *errp = ss;
+ ldap_matchingruleuse_free(mru);
+ return NULL;
+ }
+ } else if ( !strcmp(sval,"DESC") ) {
+ LDAP_FREE(sval);
+ if ( seen_desc ) {
+ *code = LDAP_SCHERR_DUPOPT;
+ *errp = ss;
+ ldap_matchingruleuse_free(mru);
+ return(NULL);
+ }
+ seen_desc = 1;
+ parse_whsp(&ss);
+ kind = get_token(&ss,&sval);
+ if ( kind != TK_QDSTRING ) {
+ *code = LDAP_SCHERR_UNEXPTOKEN;
+ *errp = ss;
+ LDAP_FREE(sval);
+ ldap_matchingruleuse_free(mru);
+ return NULL;
+ }
+ mru->mru_desc = sval;
+ parse_whsp(&ss);
+ } else if ( !strcmp(sval,"OBSOLETE") ) {
+ LDAP_FREE(sval);
+ if ( seen_obsolete ) {
+ *code = LDAP_SCHERR_DUPOPT;
+ *errp = ss;
+ ldap_matchingruleuse_free(mru);
+ return(NULL);
+ }
+ seen_obsolete = 1;
+ mru->mru_obsolete = LDAP_SCHEMA_YES;
+ parse_whsp(&ss);
+ } else if ( !strcmp(sval,"APPLIES") ) {
+ LDAP_FREE(sval);
+ if ( seen_applies ) {
+ *code = LDAP_SCHERR_DUPOPT;
+ *errp = ss;
+ ldap_matchingruleuse_free(mru);
+ return(NULL);
+ }
+ seen_applies = 1;
+ mru->mru_applies_oids = parse_oids(&ss,
+ code,
+ flags);
+ if ( !mru->mru_applies_oids ) {
+ *errp = ss;
+ ldap_matchingruleuse_free(mru);
+ return NULL;
+ }
+ } else if ( sval[0] == 'X' && sval[1] == '-' ) {
+ /* Should be parse_qdstrings */
+ ext_vals = parse_qdescrs(&ss, code);
+ if ( !ext_vals ) {
+ *errp = ss;
+ ldap_matchingruleuse_free(mru);
+ return NULL;
+ }
+ if ( add_extension(&mru->mru_extensions,
+ sval, ext_vals) ) {
+ *code = LDAP_SCHERR_OUTOFMEM;
+ *errp = ss;
+ LDAP_FREE(sval);
+ ldap_matchingruleuse_free(mru);
+ return NULL;
+ }
+ } else {
+ *code = LDAP_SCHERR_UNEXPTOKEN;
+ *errp = ss;
+ LDAP_FREE(sval);
+ ldap_matchingruleuse_free(mru);
+ return NULL;
+ }
+ break;
+ default:
+ *code = LDAP_SCHERR_UNEXPTOKEN;
+ *errp = ss;
+ LDAP_FREE(sval);
+ ldap_matchingruleuse_free(mru);
+ return NULL;
+ }
+ }
+}
+