git.sur5r.net Git - openldap/blob - servers/slapd/syntax.c

   1 /* syntax.c - routines to manage syntax definitions */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11
  12 #include <ac/ctype.h>
  13 #include <ac/string.h>
  14 #include <ac/socket.h>
  15
  16 #include "slap.h"
  17 #include "ldap_pvt.h"
  18
  19 struct sindexrec {
  20         char            *sir_name;
  21         Syntax          *sir_syn;
  22 };
  23
  24 static Avlnode  *syn_index = NULL;
  25 static Syntax *syn_list = NULL;
  26
  27 static int
  28 syn_index_cmp(
  29     struct sindexrec    *sir1,
  30     struct sindexrec    *sir2
  31 )
  32 {
  33         return (strcmp( sir1->sir_name, sir2->sir_name ));
  34 }
  35
  36 static int
  37 syn_index_name_cmp(
  38     const char          *name,
  39     struct sindexrec    *sir
  40 )
  41 {
  42         return (strcmp( name, sir->sir_name ));
  43 }
  44
  45 Syntax *
  46 syn_find( const char *synname )
  47 {
  48         struct sindexrec        *sir = NULL;
  49
  50         if ( (sir = (struct sindexrec *) avl_find( syn_index, synname,
  51             (AVL_CMP) syn_index_name_cmp )) != NULL ) {
  52                 return( sir->sir_syn );
  53         }
  54         return( NULL );
  55 }
  56
  57 Syntax *
  58 syn_find_desc( const char *syndesc, int *len )
  59 {
  60         Syntax          *synp;
  61
  62         for (synp = syn_list; synp; synp = synp->ssyn_next)
  63                 if ((*len = dscompare( synp->ssyn_syn.syn_desc, syndesc, '{')))
  64                         return synp;
  65         return( NULL );
  66 }
  67
  68 void
  69 syn_destroy( void )
  70 {
  71         Syntax *s, *n;
  72
  73         avl_free(syn_index, ldap_memfree);
  74         for (s=syn_list; s; s=n) {
  75                 n = s->ssyn_next;
  76                 ldap_syntax_free((LDAPSyntax *)s);
  77         }
  78 }
  79
  80 static int
  81 syn_insert(
  82     Syntax              *ssyn,
  83     const char          **err
  84 )
  85 {
  86         Syntax          **synp;
  87         struct sindexrec        *sir;
  88
  89         synp = &syn_list;
  90         while ( *synp != NULL ) {
  91                 synp = &(*synp)->ssyn_next;
  92         }
  93         *synp = ssyn;
  94
  95         if ( ssyn->ssyn_oid ) {
  96                 sir = (struct sindexrec *)
  97                         ch_calloc( 1, sizeof(struct sindexrec) );
  98                 sir->sir_name = ssyn->ssyn_oid;
  99                 sir->sir_syn = ssyn;
 100                 if ( avl_insert( &syn_index, (caddr_t) sir,
 101                                  (AVL_CMP) syn_index_cmp,
 102                                  (AVL_DUP) avl_dup_error ) ) {
 103                         *err = ssyn->ssyn_oid;
 104                         ldap_memfree(sir);
 105                         return SLAP_SCHERR_SYN_DUP;
 106                 }
 107                 /* FIX: temporal consistency check */
 108                 syn_find(sir->sir_name);
 109         }
 110         return 0;
 111 }
 112
 113 int
 114 syn_add(
 115     LDAPSyntax          *syn,
 116         unsigned flags,
 117     slap_syntax_validate_func   *validate,
 118     slap_syntax_transform_func  *normalize,
 119     slap_syntax_transform_func  *pretty,
 120 #ifdef SLAPD_BINARY_CONVERSION
 121     slap_syntax_transform_func  *ber2str,
 122     slap_syntax_transform_func  *str2ber,
 123 #endif
 124     const char          **err
 125 )
 126 {
 127         Syntax          *ssyn;
 128         int             code;
 129
 130         ssyn = (Syntax *) ch_calloc( 1, sizeof(Syntax) );
 131
 132         AC_MEMCPY( &ssyn->ssyn_syn, syn, sizeof(LDAPSyntax) );
 133
 134         ssyn->ssyn_next = NULL;
 135
 136         ssyn->ssyn_oidlen = strlen(syn->syn_oid);
 137         ssyn->ssyn_flags = flags;
 138         ssyn->ssyn_validate = validate;
 139         ssyn->ssyn_normalize = normalize;
 140         ssyn->ssyn_pretty = pretty;
 141
 142 #ifdef SLAPD_BINARY_CONVERSION
 143         ssyn->ssyn_ber2str = ber2str;
 144         ssyn->ssyn_str2ber = str2ber;
 145 #endif
 146
 147         code = syn_insert(ssyn, err);
 148         return code;
 149 }
 150
 151 int
 152 register_syntax(
 153         const char * desc,
 154         unsigned flags,
 155         slap_syntax_validate_func *validate,
 156         slap_syntax_transform_func *normalize,
 157         slap_syntax_transform_func *pretty )
 158 {
 159         LDAPSyntax      *syn;
 160         int             code;
 161         const char      *err;
 162
 163         syn = ldap_str2syntax( desc, &code, &err, LDAP_SCHEMA_ALLOW_ALL);
 164         if ( !syn ) {
 165 #ifdef NEW_LOGGING
 166                 LDAP_LOG( CONFIG, ERR,
 167                         "register_syntax: Error - %s before %s in %s.\n",
 168                         ldap_scherr2str(code), err, desc );
 169 #else
 170                 Debug( LDAP_DEBUG_ANY, "Error in register_syntax: %s before %s in %s\n",
 171                     ldap_scherr2str(code), err, desc );
 172 #endif
 173
 174                 return( -1 );
 175         }
 176
 177         code = syn_add( syn, flags, validate, normalize, pretty, &err );
 178
 179         ldap_memfree( syn );
 180
 181         if ( code ) {
 182 #ifdef NEW_LOGGING
 183                 LDAP_LOG( CONFIG, ERR,
 184                         "register_syntax: Error - %s %s in %s\n",
 185                         scherr2str(code), err, desc );
 186 #else
 187                 Debug( LDAP_DEBUG_ANY, "Error in register_syntax: %s %s in %s\n",
 188                     scherr2str(code), err, desc );
 189 #endif
 190
 191                 return( -1 );
 192         }
 193
 194         return( 0 );
 195 }
 196
 197 #if defined( SLAPD_SCHEMA_DN )
 198
 199 int
 200 syn_schema_info( Entry *e )
 201 {
 202         struct berval   vals[2];
 203         Syntax          *syn;
 204
 205         AttributeDescription *ad_ldapSyntaxes = slap_schema.si_ad_ldapSyntaxes;
 206
 207         vals[1].bv_val = NULL;
 208
 209         for ( syn = syn_list; syn; syn = syn->ssyn_next ) {
 210                 if ( ! syn->ssyn_validate ) {
 211                         /* skip syntaxes without validators */
 212                         continue;
 213                 }
 214                 if ( syn->ssyn_flags & SLAP_SYNTAX_HIDE ) {
 215                         /* hide syntaxes */
 216                         continue;
 217                 }
 218
 219                 if ( ldap_syntax2bv( &syn->ssyn_syn, vals ) == NULL ) {
 220                         return -1;
 221                 }
 222 #if 0
 223 #ifdef NEW_LOGGING
 224                 LDAP_LOG( config, ENTRY,
 225                            "syn_schema_info: Merging syn [%ld] %s\n",
 226                            (long)vals[0].bv_len, vals[0].bv_val, 0 );
 227 #else
 228                 Debug( LDAP_DEBUG_TRACE, "Merging syn [%ld] %s\n",
 229                (long) vals[0].bv_len, vals[0].bv_val, 0 );
 230 #endif
 231
 232 #endif
 233                 attr_merge( e, ad_ldapSyntaxes, vals );
 234                 ldap_memfree( vals[0].bv_val );
 235         }
 236         return 0;
 237 }
 238
 239 #endif