]> git.sur5r.net Git - openldap/blobdiff - libraries/libldap/schema.c
stdlib.h should be included as <ac/stdlib.h>
[openldap] / libraries / libldap / schema.c
index 0871386060167c9ae233f1614bde05176d017061..cf7a9923c47c807cfeae7a0a51dde41c51c3f5b0 100644 (file)
@@ -1,7 +1,9 @@
+/* $OpenLDAP$ */
 /*
- * Copyright 1999 The OpenLDAP Foundation, All Rights Reserved.
+ * Copyright 1999-2000 The OpenLDAP Foundation, All Rights Reserved.
  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
- *
+ */
+/*
  * schema.c:  parsing routines used by servers and clients to process
  *     schema definitions
  */
@@ -11,7 +13,6 @@
 #include <stdio.h>
 #include <ac/stdlib.h>
 
-#include <ac/ctype.h>
 #include <ac/string.h>
 #include <ac/time.h>
 
 
 #include <ldap_schema.h>
 
+static LDAP_CONST char *
+choose_name( char *names[], LDAP_CONST char *fallback )
+{
+       return( (names != NULL && names[0] != NULL) ? names[0] : fallback );
+}
+
+LDAP_CONST char *
+ldap_syntax2name( LDAPSyntax * syn )
+{
+       return( syn->syn_oid );
+}
+
+LDAP_CONST char *
+ldap_matchingrule2name( LDAPMatchingRule * mr )
+{
+       return( choose_name( mr->mr_names, mr->mr_oid ) );
+}
+
+LDAP_CONST char *
+ldap_matchingruleuse2name( LDAPMatchingRuleUse * mru )
+{
+       return( choose_name( mru->mru_names, mru->mru_oid ) );
+}
+
+LDAP_CONST char *
+ldap_attributetype2name( LDAPAttributeType * at )
+{
+       return( choose_name( at->at_names, at->at_oid ) );
+}
+
+LDAP_CONST char *
+ldap_objectclass2name( LDAPObjectClass * oc )
+{
+       return( choose_name( oc->oc_names, oc->oc_oid ) );
+}
+
+
 /*
  * When pretty printing the entities we will be appending to a buffer.
  * Since checking for overflow, realloc'ing and checking if no error
@@ -88,6 +126,10 @@ append_to_safe_string(safe_string * ss, char * s)
        /* We always make sure there is at least one position available */
        if ( ss->pos + l >= ss->size-1 ) {
                ss->size *= 2;
+               if ( ss->pos + l >= ss->size-1 ) {
+                       ss->size = ss->pos + l + 1;
+               }
+
                temp = LDAP_REALLOC(ss->val, ss->size);
                if ( !temp ) {
                        /* Trouble, out of memory */
@@ -98,7 +140,7 @@ append_to_safe_string(safe_string * ss, char * s)
        }
        strncpy(&ss->val[ss->pos], s, l);
        ss->pos += l;
-       if ( ss->pos > 0 && isspace(ss->val[ss->pos-1]) )
+       if ( ss->pos > 0 && LDAP_SPACE(ss->val[ss->pos-1]) )
                ss->at_whsp = 1;
        else
                ss->at_whsp = 0;
@@ -178,9 +220,9 @@ print_qdescrs(safe_string *ss, char **sa)
         */
        if ( !sa[0] || ( sa[0] && sa[1] ) ) {
                print_whsp(ss);
-               print_literal(ss,"(");
+               print_literal(ss,"("/*)*/);
                print_qdescrlist(ss,sa);
-               print_literal(ss,")");
+               print_literal(ss,/*(*/")");
                return(print_whsp(ss));
        } else {
          return(print_qdescr(ss,*sa));
@@ -211,10 +253,10 @@ static int
 print_oids(safe_string *ss, char **sa)
 {
        if ( sa[0] && sa[1] ) {
-               print_literal(ss,"(");
+               print_literal(ss,"("/*)*/);
                print_oidlist(ss,sa);
                print_whsp(ss);
-               return(print_literal(ss,")"));
+               return(print_literal(ss,/*(*/")"));
        } else {
                return(print_woid(ss,*sa));
        }
@@ -234,8 +276,27 @@ print_noidlen(safe_string *ss, char *s, int l)
        return(ret);
 }
 
+static int
+print_extensions(safe_string *ss, LDAPSchemaExtensionItem **extensions)
+{
+       LDAPSchemaExtensionItem **ext;
+
+       if ( extensions ) {
+               print_whsp(ss);
+               for ( ext = extensions; *ext != NULL; ext++ ) {
+                       print_literal(ss, (*ext)->lsei_name);
+                       print_whsp(ss);
+                       /* Should be print_qdstrings */
+                       print_qdescrs(ss, (*ext)->lsei_values);
+                       print_whsp(ss);
+               }
+       }
+
+       return 0;
+}
+
 char *
-ldap_syntax2str( const LDAP_SYNTAX * syn )
+ldap_syntax2str( const LDAPSyntax * syn )
 {
        safe_string * ss;
        char * retstring;
@@ -244,7 +305,7 @@ ldap_syntax2str( const LDAP_SYNTAX * syn )
        if ( !ss )
                return NULL;
 
-       print_literal(ss,"(");
+       print_literal(ss,"("/*)*/);
        print_whsp(ss);
 
        print_numericoid(ss, syn->syn_oid);
@@ -256,7 +317,10 @@ ldap_syntax2str( const LDAP_SYNTAX * syn )
        }
 
        print_whsp(ss);
-       print_literal(ss,")");
+
+       print_extensions(ss, syn->syn_extensions);
+
+       print_literal(ss,/*(*/ ")");
 
        retstring = LDAP_STRDUP(safe_string_val(ss));
        safe_string_free(ss);
@@ -264,7 +328,7 @@ ldap_syntax2str( const LDAP_SYNTAX * syn )
 }
 
 char *
-ldap_matchingrule2str( const LDAP_MATCHING_RULE * mr )
+ldap_matchingrule2str( const LDAPMatchingRule * mr )
 {
        safe_string * ss;
        char * retstring;
@@ -273,7 +337,7 @@ ldap_matchingrule2str( const LDAP_MATCHING_RULE * mr )
        if ( !ss )
                return NULL;
 
-       print_literal(ss,"(");
+       print_literal(ss,"(" /*)*/);
        print_whsp(ss);
 
        print_numericoid(ss, mr->mr_oid);
@@ -302,7 +366,59 @@ ldap_matchingrule2str( const LDAP_MATCHING_RULE * mr )
        }
 
        print_whsp(ss);
-       print_literal(ss,")");
+
+       print_extensions(ss, mr->mr_extensions);
+
+       print_literal(ss,/*(*/")");
+
+       retstring = LDAP_STRDUP(safe_string_val(ss));
+       safe_string_free(ss);
+       return(retstring);
+}
+
+char *
+ldap_matchingruleuse2str( const LDAPMatchingRuleUse * mru )
+{
+       safe_string * ss;
+       char * retstring;
+       
+       ss = new_safe_string(256);
+       if ( !ss )
+               return NULL;
+
+       print_literal(ss,"(" /*)*/);
+       print_whsp(ss);
+
+       print_numericoid(ss, mru->mru_oid);
+       print_whsp(ss);
+
+       if ( mru->mru_names ) {
+               print_literal(ss,"NAME");
+               print_qdescrs(ss,mru->mru_names);
+       }
+
+       if ( mru->mru_desc ) {
+               print_literal(ss,"DESC");
+               print_qdstring(ss,mru->mru_desc);
+       }
+
+       if ( mru->mru_obsolete == LDAP_SCHEMA_YES ) {
+               print_literal(ss, "OBSOLETE");
+               print_whsp(ss);
+       }
+
+       if ( mru->mru_applies_oids ) {
+               print_literal(ss,"APPLIES");
+               print_whsp(ss);
+               print_oids(ss, mru->mru_applies_oids);
+               print_whsp(ss);
+       }
+
+       print_whsp(ss);
+
+       print_extensions(ss, mru->mru_extensions);
+
+       print_literal(ss,/*(*/")");
 
        retstring = LDAP_STRDUP(safe_string_val(ss));
        safe_string_free(ss);
@@ -310,7 +426,7 @@ ldap_matchingrule2str( const LDAP_MATCHING_RULE * mr )
 }
 
 char *
-ldap_objectclass2str( const LDAP_OBJECT_CLASS * oc )
+ldap_objectclass2str( const LDAPObjectClass * oc )
 {
        safe_string * ss;
        char * retstring;
@@ -319,7 +435,7 @@ ldap_objectclass2str( const LDAP_OBJECT_CLASS * oc )
        if ( !ss )
                return NULL;
 
-       print_literal(ss,"(");
+       print_literal(ss,"("/*)*/);
        print_whsp(ss);
 
        print_numericoid(ss, oc->oc_oid);
@@ -378,7 +494,10 @@ ldap_objectclass2str( const LDAP_OBJECT_CLASS * oc )
        }
 
        print_whsp(ss);
-       print_literal(ss,")");
+
+       print_extensions(ss, oc->oc_extensions);
+
+       print_literal(ss, /*(*/")");
 
        retstring = LDAP_STRDUP(safe_string_val(ss));
        safe_string_free(ss);
@@ -386,7 +505,7 @@ ldap_objectclass2str( const LDAP_OBJECT_CLASS * oc )
 }
 
 char *
-ldap_attributetype2str( const LDAP_ATTRIBUTE_TYPE * at )
+ldap_attributetype2str( const LDAPAttributeType * at )
 {
        safe_string * ss;
        char * retstring;
@@ -395,7 +514,7 @@ ldap_attributetype2str( const LDAP_ATTRIBUTE_TYPE * at )
        if ( !ss )
                return NULL;
 
-       print_literal(ss,"(");
+       print_literal(ss,"("/*)*/);
        print_whsp(ss);
 
        print_numericoid(ss, at->at_oid);
@@ -478,7 +597,10 @@ ldap_attributetype2str( const LDAP_ATTRIBUTE_TYPE * at )
        }
        
        print_whsp(ss);
-       print_literal(ss,")");
+
+       print_extensions(ss, at->at_extensions);
+
+       print_literal(ss,/*(*/")");
 
        retstring = LDAP_STRDUP(safe_string_val(ss));
        safe_string_free(ss);
@@ -573,7 +695,7 @@ get_token(const char ** sp, char ** token_val)
        default:
                kind = TK_BAREWORD;
                p = *sp;
-               while ( !isspace(**sp) &&
+               while ( !LDAP_SPACE(**sp) &&
                        **sp != '(' &&
                        **sp != ')' &&
                        **sp != '$' &&
@@ -601,7 +723,7 @@ get_token(const char ** sp, char ** token_val)
 static void
 parse_whsp(const char **sp)
 {
-       while (isspace(**sp))
+       while (LDAP_SPACE(**sp))
                (*sp)++;
 }
 
@@ -614,8 +736,8 @@ parse_whsp(const char **sp)
  */
 
 /* Parse a sequence of dot-separated decimal strings */
-static char *
-parse_numericoid(const char **sp, int *code, const int allow_quoted)
+char *
+parse_numericoid(const char **sp, int *code, const int flags)
 {
        char * res;
        const char * start = *sp;
@@ -623,14 +745,14 @@ parse_numericoid(const char **sp, int *code, const int allow_quoted)
        int quoted = 0;
 
        /* Netscape puts the SYNTAX value in quotes (incorrectly) */
-       if ( allow_quoted && **sp == '\'' ) {
+       if ( flags & LDAP_SCHEMA_ALLOW_QUOTED && **sp == '\'' ) {
                quoted = 1;
                (*sp)++;
                start++;
        }
        /* Each iteration of this loop gets one decimal string */
        while (**sp) {
-               if ( !isdigit(**sp) ) {
+               if ( !LDAP_DIGIT(**sp) ) {
                        /*
                         * Initial char is not a digit or char after dot is
                         * not a digit
@@ -639,7 +761,7 @@ parse_numericoid(const char **sp, int *code, const int allow_quoted)
                        return NULL;
                }
                (*sp)++;
-               while ( isdigit(**sp) )
+               while ( LDAP_DIGIT(**sp) )
                        (*sp)++;
                if ( **sp != '.' )
                        break;
@@ -655,7 +777,7 @@ parse_numericoid(const char **sp, int *code, const int allow_quoted)
        }
        strncpy(res,start,len);
        res[len] = '\0';
-       if ( allow_quoted && quoted ) {
+       if ( flags & LDAP_SCHEMA_ALLOW_QUOTED && quoted ) {
                if ( **sp == '\'' ) {
                        (*sp)++;
                } else {
@@ -771,12 +893,12 @@ parse_noidlen(const char **sp, int *code, int *len, int allow_quoted)
        if ( !sval ) {
                return NULL;
        }
-       if ( **sp == '{' ) {
+       if ( **sp == '{' /*}*/ ) {
                (*sp)++;
                *len = atoi(*sp);
-               while ( isdigit(**sp) )
+               while ( LDAP_DIGIT(**sp) )
                        (*sp)++;
-               if ( **sp != '}' ) {
+               if ( **sp != /*{*/ '}' ) {
                        *code = LDAP_SCHERR_UNEXPTOKEN;
                        LDAP_FREE(sval);
                        return NULL;
@@ -902,23 +1024,74 @@ parse_oids(const char **sp, int *code, const int allow_quoted)
        }
 }
 
+static int
+add_extension(LDAPSchemaExtensionItem ***extensions,
+             char * name, char ** values)
+{
+       int n;
+       LDAPSchemaExtensionItem **tmp, *ext;
+
+       ext = LDAP_CALLOC(1, sizeof(LDAPSchemaExtensionItem));
+       if ( !ext )
+               return 1;
+       ext->lsei_name = name;
+       ext->lsei_values = values;
+
+       if ( !*extensions ) {
+               *extensions =
+                 LDAP_CALLOC(2, sizeof(LDAPSchemaExtensionItem *));
+               if ( !*extensions )
+                 return 1;
+               n = 0;
+       } else {
+               for ( n=0; (*extensions)[n] != NULL; n++ )
+                       ;
+               tmp = LDAP_REALLOC(*extensions,
+                                  (n+2)*sizeof(LDAPSchemaExtensionItem *));
+               if ( !tmp )
+                       return 1;
+               *extensions = tmp;
+       }
+       (*extensions)[n] = ext;
+       (*extensions)[n+1] = NULL;
+       return 0;
+}
+
+static void
+free_extensions(LDAPSchemaExtensionItem **extensions)
+{
+       LDAPSchemaExtensionItem **ext;
+
+       if ( extensions ) {
+               for ( ext = extensions; *ext != NULL; ext++ ) {
+                       LDAP_FREE((*ext)->lsei_name);
+                       LDAP_VFREE((*ext)->lsei_values);
+                       LDAP_FREE(*ext);
+               }
+               LDAP_FREE(extensions);
+       }
+}
+
 void
-ldap_syntax_free( LDAP_SYNTAX * syn )
+ldap_syntax_free( LDAPSyntax * syn )
 {
        LDAP_FREE(syn->syn_oid);
+       LDAP_VFREE(syn->syn_names);
        LDAP_FREE(syn->syn_desc);
+       free_extensions(syn->syn_extensions);
        LDAP_FREE(syn);
 }
 
-LDAP_SYNTAX *
-ldap_str2syntax( const char * s, int * code, const char ** errp )
+LDAPSyntax *
+ldap_str2syntax( 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;
-       LDAP_SYNTAX * syn;
-       char ** ssdummy;
+       LDAPSyntax * syn;
+       char ** ext_vals;
 
        if ( !s ) {
                *code = LDAP_SCHERR_EMPTY;
@@ -927,7 +1100,7 @@ ldap_str2syntax( const char * s, int * code, const char ** errp )
        }
 
        *errp = s;
-       syn = LDAP_CALLOC(1,sizeof(LDAP_SYNTAX));
+       syn = LDAP_CALLOC(1,sizeof(LDAPSyntax));
 
        if ( !syn ) {
                *code = LDAP_SCHERR_OUTOFMEM;
@@ -966,7 +1139,24 @@ ldap_str2syntax( const char * s, int * code, const char ** errp )
                case TK_RIGHTPAREN:
                        return syn;
                case TK_BAREWORD:
-                       if ( !strcmp(sval,"DESC") ) {
+                       if ( !strcmp(sval,"NAME") ) {
+                               LDAP_FREE(sval);
+                               if ( seen_name ) {
+                                       *code = LDAP_SCHERR_DUPOPT;
+                                       *errp = ss;
+                                       ldap_syntax_free(syn);
+                                       return(NULL);
+                               }
+                               seen_name = 1;
+                               syn->syn_names = parse_qdescrs(&ss,code);
+                               if ( !syn->syn_names ) {
+                                       if ( *code != LDAP_SCHERR_OUTOFMEM )
+                                               *code = LDAP_SCHERR_BADNAME;
+                                       *errp = ss;
+                                       ldap_syntax_free(syn);
+                                       return NULL;
+                               }
+                       } else if ( !strcmp(sval,"DESC") ) {
                                LDAP_FREE(sval);
                                if ( seen_desc ) {
                                        *code = LDAP_SCHERR_DUPOPT;
@@ -987,11 +1177,18 @@ ldap_str2syntax( const char * s, int * code, const char ** errp )
                                syn->syn_desc = sval;
                                parse_whsp(&ss);
                        } else if ( sval[0] == 'X' && sval[1] == '-' ) {
-                               LDAP_FREE(sval);
                                /* Should be parse_qdstrings */
-                               ssdummy = parse_qdescrs(&ss, code);
-                               if ( !ssdummy ) {
+                               ext_vals = parse_qdescrs(&ss, code);
+                               if ( !ext_vals ) {
+                                       *errp = ss;
+                                       ldap_syntax_free(syn);
+                                       return NULL;
+                               }
+                               if ( add_extension(&syn->syn_extensions,
+                                                   sval, ext_vals) ) {
+                                       *code = LDAP_SCHERR_OUTOFMEM;
                                        *errp = ss;
+                                       LDAP_FREE(sval);
                                        ldap_syntax_free(syn);
                                        return NULL;
                                }
@@ -1014,28 +1211,28 @@ ldap_str2syntax( const char * s, int * code, const char ** errp )
 }
 
 void
-ldap_matchingrule_free( LDAP_MATCHING_RULE * mr )
+ldap_matchingrule_free( LDAPMatchingRule * mr )
 {
        LDAP_FREE(mr->mr_oid);
        LDAP_VFREE(mr->mr_names);
        LDAP_FREE(mr->mr_desc);
        LDAP_FREE(mr->mr_syntax_oid);
+       free_extensions(mr->mr_extensions);
        LDAP_FREE(mr);
 }
 
-LDAP_MATCHING_RULE *
-ldap_str2matchingrule( const char * s, int * code, const char ** errp )
+LDAPMatchingRule *
+ldap_str2matchingrule( const char * s, int * code, const char ** errp, const int flags )
 {
        int kind;
        const char * ss = s;
        char * sval;
-       int be_liberal = 1;     /* Future additional argument */
        int seen_name = 0;
        int seen_desc = 0;
        int seen_obsolete = 0;
        int seen_syntax = 0;
-       LDAP_MATCHING_RULE * mr;
-       char ** ssdummy;
+       LDAPMatchingRule * mr;
+       char ** ext_vals;
        const char * savepos;
 
        if ( !s ) {
@@ -1045,7 +1242,7 @@ ldap_str2matchingrule( const char * s, int * code, const char ** errp )
        }
 
        *errp = s;
-       mr = LDAP_CALLOC(1,sizeof(LDAP_MATCHING_RULE));
+       mr = LDAP_CALLOC(1,sizeof(LDAPMatchingRule));
 
        if ( !mr ) {
                *code = LDAP_SCHERR_OUTOFMEM;
@@ -1062,9 +1259,9 @@ ldap_str2matchingrule( const char * s, int * code, const char ** errp )
 
        parse_whsp(&ss);
        savepos = ss;
-       mr->mr_oid = parse_numericoid(&ss,code,be_liberal);
+       mr->mr_oid = parse_numericoid(&ss,code,flags);
        if ( !mr->mr_oid ) {
-               if ( be_liberal ) {
+               if ( flags & LDAP_SCHEMA_ALLOW_NO_OID ) {
                        /* Backtracking */
                        ss = savepos;
                        kind = get_token(&ss,&sval);
@@ -1163,7 +1360,7 @@ ldap_str2matchingrule( const char * s, int * code, const char ** errp )
                                seen_syntax = 1;
                                parse_whsp(&ss);
                                mr->mr_syntax_oid =
-                                       parse_numericoid(&ss,code,be_liberal);
+                                       parse_numericoid(&ss,code,flags);
                                if ( !mr->mr_syntax_oid ) {
                                        *errp = ss;
                                        ldap_matchingrule_free(mr);
@@ -1171,14 +1368,21 @@ ldap_str2matchingrule( const char * s, int * code, const char ** errp )
                                }
                                parse_whsp(&ss);
                        } else if ( sval[0] == 'X' && sval[1] == '-' ) {
-                               LDAP_FREE(sval);
                                /* Should be parse_qdstrings */
-                               ssdummy = parse_qdescrs(&ss, code);
-                               if ( !ssdummy ) {
+                               ext_vals = parse_qdescrs(&ss, code);
+                               if ( !ext_vals ) {
                                        *errp = ss;
                                        ldap_matchingrule_free(mr);
                                        return NULL;
                                }
+                               if ( add_extension(&mr->mr_extensions,
+                                                   sval, ext_vals) ) {
+                                       *code = LDAP_SCHERR_OUTOFMEM;
+                                       *errp = ss;
+                                       LDAP_FREE(sval);
+                                       ldap_matchingrule_free(mr);
+                                       return NULL;
+                               }
                        } else {
                                *code = LDAP_SCHERR_UNEXPTOKEN;
                                *errp = ss;
@@ -1198,7 +1402,197 @@ ldap_str2matchingrule( const char * s, int * code, const char ** errp )
 }
 
 void
-ldap_attributetype_free(LDAP_ATTRIBUTE_TYPE * at)
+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;
+               }
+       }
+}
+
+void
+ldap_attributetype_free(LDAPAttributeType * at)
 {
        LDAP_FREE(at->at_oid);
        LDAP_VFREE(at->at_names);
@@ -1208,16 +1602,16 @@ ldap_attributetype_free(LDAP_ATTRIBUTE_TYPE * at)
        LDAP_FREE(at->at_ordering_oid);
        LDAP_FREE(at->at_substr_oid);
        LDAP_FREE(at->at_syntax_oid);
+       free_extensions(at->at_extensions);
        LDAP_FREE(at);
 }
 
-LDAP_ATTRIBUTE_TYPE *
-ldap_str2attributetype( const char * s, int * code, const char ** errp )
+LDAPAttributeType *
+ldap_str2attributetype( const char * s, int * code, const char ** errp, const int flags )
 {
        int kind;
        const char * ss = s;
        char * sval;
-       int be_liberal = 1;     /* Future additional argument */
        int seen_name = 0;
        int seen_desc = 0;
        int seen_obsolete = 0;
@@ -1227,11 +1621,8 @@ ldap_str2attributetype( const char * s, int * code, const char ** errp )
        int seen_substr = 0;
        int seen_syntax = 0;
        int seen_usage = 0;
-       int seen_kind = 0;
-       int seen_must = 0;
-       int seen_may = 0;
-       LDAP_ATTRIBUTE_TYPE * at;
-       char ** ssdummy;
+       LDAPAttributeType * at;
+       char ** ext_vals;
        const char * savepos;
 
        if ( !s ) {
@@ -1241,7 +1632,7 @@ ldap_str2attributetype( const char * s, int * code, const char ** errp )
        }
 
        *errp = s;
-       at = LDAP_CALLOC(1,sizeof(LDAP_ATTRIBUTE_TYPE));
+       at = LDAP_CALLOC(1,sizeof(LDAPAttributeType));
 
        if ( !at ) {
                *code = LDAP_SCHERR_OUTOFMEM;
@@ -1267,7 +1658,9 @@ ldap_str2attributetype( const char * s, int * code, const char ** errp )
        savepos = ss;
        at->at_oid = parse_numericoid(&ss,code,0);
        if ( !at->at_oid ) {
-               if ( be_liberal ) {
+               if ( ( flags & ( LDAP_SCHEMA_ALLOW_NO_OID
+                               | LDAP_SCHEMA_ALLOW_OID_MACRO ) )
+                           && (ss == savepos) ) {
                        /* Backtracking */
                        ss = savepos;
                        kind = get_token(&ss,&sval);
@@ -1287,8 +1680,13 @@ ldap_str2attributetype( const char * s, int * code, const char ** errp )
                                     !strncmp(sval, "X-", 2) ) {
                                        /* Missing OID, backtrack */
                                        ss = savepos;
-                               } else {
-                                       /* Non-numerical OID, ignore */
+                               } else if ( flags
+                                       & LDAP_SCHEMA_ALLOW_OID_MACRO) {
+                                       /* Non-numerical OID ... */
+                                       int len = ss-savepos;
+                                       at->at_oid = LDAP_MALLOC(len+1);
+                                       strncpy(at->at_oid, savepos, len);
+                                       at->at_oid[len] = 0;
                                }
                        }
                        LDAP_FREE(sval);
@@ -1433,15 +1831,38 @@ ldap_str2attributetype( const char * s, int * code, const char ** errp )
                                }
                                seen_syntax = 1;
                                parse_whsp(&ss);
+                               savepos = ss;
                                at->at_syntax_oid =
                                        parse_noidlen(&ss,
                                                      code,
                                                      &at->at_syntax_len,
-                                                     be_liberal);
+                                                     flags);
                                if ( !at->at_syntax_oid ) {
+                                   if ( flags & LDAP_SCHEMA_ALLOW_OID_MACRO ) {
+                                       kind = get_token(&ss,&sval);
+                                       if (kind == TK_BAREWORD)
+                                       {
+                                           char *sp = strchr(sval, '{');
+                                           at->at_syntax_oid = sval;
+                                           if (sp)
+                                           {
+                                               *sp++ = 0;
+                                               at->at_syntax_len = atoi(sp);
+                                               while ( LDAP_DIGIT(*sp) )
+                                                       sp++;
+                                               if ( *sp != '}' ) {
+                                                   *code = LDAP_SCHERR_UNEXPTOKEN;
+                                                   *errp = ss;
+                                                   ldap_attributetype_free(at);
+                                                   return NULL;
+                                               }
+                                           }
+                                       }
+                                   } else {
                                        *errp = ss;
                                        ldap_attributetype_free(at);
                                        return NULL;
+                                   }
                                }
                                parse_whsp(&ss);
                        } else if ( !strcmp(sval,"SINGLE-VALUE") ) {
@@ -1514,14 +1935,21 @@ ldap_str2attributetype( const char * s, int * code, const char ** errp )
                                LDAP_FREE(sval);
                                parse_whsp(&ss);
                        } else if ( sval[0] == 'X' && sval[1] == '-' ) {
-                               LDAP_FREE(sval);
                                /* Should be parse_qdstrings */
-                               ssdummy = parse_qdescrs(&ss, code);
-                               if ( !ssdummy ) {
+                               ext_vals = parse_qdescrs(&ss, code);
+                               if ( !ext_vals ) {
                                        *errp = ss;
                                        ldap_attributetype_free(at);
                                        return NULL;
                                }
+                               if ( add_extension(&at->at_extensions,
+                                                   sval, ext_vals) ) {
+                                       *code = LDAP_SCHERR_OUTOFMEM;
+                                       *errp = ss;
+                                       LDAP_FREE(sval);
+                                       ldap_attributetype_free(at);
+                                       return NULL;
+                               }
                        } else {
                                *code = LDAP_SCHERR_UNEXPTOKEN;
                                *errp = ss;
@@ -1541,7 +1969,7 @@ ldap_str2attributetype( const char * s, int * code, const char ** errp )
 }
 
 void
-ldap_objectclass_free(LDAP_OBJECT_CLASS * oc)
+ldap_objectclass_free(LDAPObjectClass * oc)
 {
        LDAP_FREE(oc->oc_oid);
        LDAP_VFREE(oc->oc_names);
@@ -1549,16 +1977,16 @@ ldap_objectclass_free(LDAP_OBJECT_CLASS * oc)
        LDAP_VFREE(oc->oc_sup_oids);
        LDAP_VFREE(oc->oc_at_oids_must);
        LDAP_VFREE(oc->oc_at_oids_may);
+       free_extensions(oc->oc_extensions);
        LDAP_FREE(oc);
 }
 
-LDAP_OBJECT_CLASS *
-ldap_str2objectclass( const char * s, int * code, const char ** errp )
+LDAPObjectClass *
+ldap_str2objectclass( const char * s, int * code, const char ** errp, const int flags )
 {
        int kind;
        const char * ss = s;
        char * sval;
-       int be_liberal = 1;     /* Future additional argument */
        int seen_name = 0;
        int seen_desc = 0;
        int seen_obsolete = 0;
@@ -1566,8 +1994,8 @@ ldap_str2objectclass( const char * s, int * code, const char ** errp )
        int seen_kind = 0;
        int seen_must = 0;
        int seen_may = 0;
-       LDAP_OBJECT_CLASS * oc;
-       char ** ssdummy;
+       LDAPObjectClass * oc;
+       char ** ext_vals;
        const char * savepos;
 
        if ( !s ) {
@@ -1577,12 +2005,13 @@ ldap_str2objectclass( const char * s, int * code, const char ** errp )
        }
 
        *errp = s;
-       oc = LDAP_CALLOC(1,sizeof(LDAP_OBJECT_CLASS));
+       oc = LDAP_CALLOC(1,sizeof(LDAPObjectClass));
 
        if ( !oc ) {
                *code = LDAP_SCHERR_OUTOFMEM;
                return NULL;
        }
+       oc->oc_kind = LDAP_SCHEMA_STRUCTURAL;
 
        kind = get_token(&ss,&sval);
        if ( kind != TK_LEFTPAREN ) {
@@ -1603,7 +2032,7 @@ ldap_str2objectclass( const char * s, int * code, const char ** errp )
        savepos = ss;
        oc->oc_oid = parse_numericoid(&ss,code,0);
        if ( !oc->oc_oid ) {
-               if ( be_liberal ) {
+               if ( (flags & LDAP_SCHEMA_ALLOW_ALL) && (ss == savepos) ) {
                        /* Backtracking */
                        ss = savepos;
                        kind = get_token(&ss,&sval);
@@ -1619,8 +2048,13 @@ ldap_str2objectclass( const char * s, int * code, const char ** errp )
                                     !strncmp(sval, "X-", 2) ) {
                                        /* Missing OID, backtrack */
                                        ss = savepos;
-                               } else {
+                               } else if ( flags &
+                                       LDAP_SCHEMA_ALLOW_OID_MACRO ) {
                                        /* Non-numerical OID, ignore */
+                                       int len = ss-savepos;
+                                       oc->oc_oid = LDAP_MALLOC(len+1);
+                                       strncpy(oc->oc_oid, savepos, len);
+                                       oc->oc_oid[len] = 0;
                                }
                        }
                        LDAP_FREE(sval);
@@ -1706,7 +2140,7 @@ ldap_str2objectclass( const char * s, int * code, const char ** errp )
                                seen_sup = 1;
                                oc->oc_sup_oids = parse_oids(&ss,
                                                             code,
-                                                            be_liberal);
+                                                            flags);
                                if ( !oc->oc_sup_oids ) {
                                        *errp = ss;
                                        ldap_objectclass_free(oc);
@@ -1778,11 +2212,18 @@ ldap_str2objectclass( const char * s, int * code, const char ** errp )
                                }
                                parse_whsp(&ss);
                        } else if ( sval[0] == 'X' && sval[1] == '-' ) {
-                               LDAP_FREE(sval);
                                /* Should be parse_qdstrings */
-                               ssdummy = parse_qdescrs(&ss, code);
-                               if ( !ssdummy ) {
+                               ext_vals = parse_qdescrs(&ss, code);
+                               if ( !ext_vals ) {
+                                       *errp = ss;
+                                       ldap_objectclass_free(oc);
+                                       return NULL;
+                               }
+                               if ( add_extension(&oc->oc_extensions,
+                                                   sval, ext_vals) ) {
+                                       *code = LDAP_SCHERR_OUTOFMEM;
                                        *errp = ss;
+                                       LDAP_FREE(sval);
                                        ldap_objectclass_free(oc);
                                        return NULL;
                                }
@@ -1804,8 +2245,8 @@ ldap_str2objectclass( const char * s, int * code, const char ** errp )
        }
 }
 
-static char *err2text[] = {
-       "",
+static char *const err2text[] = {
+       "Success",
        "Out of memory",
        "Unexpected token",
        "Missing opening parenthesis",
@@ -1821,7 +2262,7 @@ static char *err2text[] = {
 char *
 ldap_scherr2str(int code)
 {
-       if ( code < 1 || code >= (sizeof(err2text)/sizeof(char *)) ) {
+       if ( code < 0 || code >= (sizeof(err2text)/sizeof(char *)) ) {
                return "Unknown error";
        } else {
                return err2text[code];