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

   1 /* syntax.c - routines to manage syntax definitions */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2000 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
  20 struct sindexrec {
  21         char            *sir_name;
  22         Syntax          *sir_syn;
  23 };
  24
  25 static Avlnode  *syn_index = NULL;
  26 static Syntax *syn_list = NULL;
  27
  28 static int
  29 syn_index_cmp(
  30     struct sindexrec    *sir1,
  31     struct sindexrec    *sir2
  32 )
  33 {
  34         return (strcmp( sir1->sir_name, sir2->sir_name ));
  35 }
  36
  37 static int
  38 syn_index_name_cmp(
  39     const char          *name,
  40     struct sindexrec    *sir
  41 )
  42 {
  43         return (strcmp( name, sir->sir_name ));
  44 }
  45
  46 Syntax *
  47 syn_find( const char *synname )
  48 {
  49         struct sindexrec        *sir = NULL;
  50
  51         if ( (sir = (struct sindexrec *) avl_find( syn_index, synname,
  52             (AVL_CMP) syn_index_name_cmp )) != NULL ) {
  53                 return( sir->sir_syn );
  54         }
  55         return( NULL );
  56 }
  57
  58 Syntax *
  59 syn_find_desc( const char *syndesc, int *len )
  60 {
  61         Syntax          *synp;
  62
  63         for (synp = syn_list; synp; synp = synp->ssyn_next)
  64                 if ((*len = dscompare( synp->ssyn_syn.syn_desc, syndesc, '{')))
  65                         return synp;
  66         return( NULL );
  67 }
  68
  69 void
  70 syn_destroy( void )
  71 {
  72         Syntax *s, *n;
  73
  74         avl_free(syn_index, ldap_memfree);
  75         for (s=syn_list; s; s=n) {
  76                 n = s->ssyn_next;
  77                 ldap_syntax_free((LDAPSyntax *)s);
  78         }
  79 }
  80
  81 static int
  82 syn_insert(
  83     Syntax              *ssyn,
  84     const char          **err
  85 )
  86 {
  87         Syntax          **synp;
  88         struct sindexrec        *sir;
  89
  90         synp = &syn_list;
  91         while ( *synp != NULL ) {
  92                 synp = &(*synp)->ssyn_next;
  93         }
  94         *synp = ssyn;
  95
  96         if ( ssyn->ssyn_oid ) {
  97                 sir = (struct sindexrec *)
  98                         ch_calloc( 1, sizeof(struct sindexrec) );
  99                 sir->sir_name = ssyn->ssyn_oid;
 100                 sir->sir_syn = ssyn;
 101                 if ( avl_insert( &syn_index, (caddr_t) sir,
 102                                  (AVL_CMP) syn_index_cmp,
 103                                  (AVL_DUP) avl_dup_error ) ) {
 104                         *err = ssyn->ssyn_oid;
 105                         ldap_memfree(sir);
 106                         return SLAP_SCHERR_DUP_SYNTAX;
 107                 }
 108                 /* FIX: temporal consistency check */
 109                 syn_find(sir->sir_name);
 110         }
 111         return 0;
 112 }
 113
 114 int
 115 syn_add(
 116     LDAPSyntax          *syn,
 117         unsigned flags,
 118     slap_syntax_validate_func   *validate,
 119     slap_syntax_transform_func  *normalize,
 120     slap_syntax_transform_func  *pretty,
 121 #ifdef SLAPD_BINARY_CONVERSION
 122     slap_syntax_transform_func  *ber2str,
 123     slap_syntax_transform_func  *str2ber,
 124 #endif
 125     const char          **err
 126 )
 127 {
 128         Syntax          *ssyn;
 129         int             code;
 130
 131         ssyn = (Syntax *) ch_calloc( 1, sizeof(Syntax) );
 132
 133         AC_MEMCPY( &ssyn->ssyn_syn, syn, sizeof(LDAPSyntax) );
 134
 135         ssyn->ssyn_next = NULL;
 136
 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(( "schema", LDAP_LEVEL_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(( "schema", LDAP_LEVEL_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   val;
 203         struct berval   *vals[2];
 204         Syntax          *syn;
 205
 206         AttributeDescription *ad_ldapSyntaxes = slap_schema.si_ad_ldapSyntaxes;
 207
 208         vals[0] = &val;
 209         vals[1] = NULL;
 210
 211         for ( syn = syn_list; syn; syn = syn->ssyn_next ) {
 212                 if ( ! syn->ssyn_validate ) {
 213                         /* skip syntaxes without validators */
 214                         continue;
 215                 }
 216                 if ( syn->ssyn_flags & SLAP_SYNTAX_HIDE ) {
 217                         /* hide syntaxes */
 218                         continue;
 219                 }
 220
 221                 val.bv_val = ldap_syntax2str( &syn->ssyn_syn );
 222                 if ( val.bv_val == NULL ) {
 223                         return -1;
 224                 }
 225                 val.bv_len = strlen( val.bv_val );
 226 #if 0
 227 #ifdef NEW_LOGGING
 228                 LDAP_LOG(( "schema", LDAP_LEVEL_ENTRY,
 229                            "syn_schema_info: Merging syn [%ld] %s\n",
 230                            (long)val.bv_len, val.bv_val ));
 231 #else
 232                 Debug( LDAP_DEBUG_TRACE, "Merging syn [%ld] %s\n",
 233                (long) val.bv_len, val.bv_val, 0 );
 234 #endif
 235
 236 #endif
 237                 attr_merge( e, ad_ldapSyntaxes, vals );
 238                 ldap_memfree( val.bv_val );
 239         }
 240         return 0;
 241 }
 242
 243 #endif