git.sur5r.net Git - openldap/blob - libraries/libldap/friendly.c

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6 /*  Portions
   7  *  Copyright (c) 1990 Regents of the University of Michigan.
   8  *  All rights reserved.
   9  *
  10  *  friendly.c
  11  */
  12
  13 #include "portable.h"
  14
  15 #include <stdio.h>
  16 #include <ac/stdlib.h>
  17
  18 #include <ac/errno.h>
  19 #include <ac/socket.h>
  20 #include <ac/string.h>
  21 #include <ac/time.h>
  22
  23 #include "ldap-int.h"
  24
  25 char *
  26 ldap_friendly_name(
  27         LDAP_CONST char *filename,
  28         /* LDAP_CONST */ char *uname,
  29         LDAPFriendlyMap **map )
  30 {
  31         int     i, entries;
  32         FILE    *fp;
  33         char    *s;
  34         char    buf[BUFSIZ];
  35
  36         if ( map == NULL ) {
  37                 errno = EINVAL;
  38                 return( uname );
  39         }
  40
  41         if ( *map == NULL ) {
  42                 if ( (fp = fopen( filename, "r" )) == NULL )
  43                         return( uname );
  44
  45                 entries = 0;
  46                 while ( fgets( buf, sizeof(buf), fp ) != NULL ) {
  47                         if ( buf[0] != '#' )
  48                                 entries++;
  49                 }
  50                 rewind( fp );
  51
  52                 if ( (*map = (LDAPFriendlyMap *) LDAP_MALLOC( (entries + 1) *
  53                     sizeof(LDAPFriendlyMap) )) == NULL ) {
  54                         fclose( fp );
  55                         return( uname );
  56                 }
  57
  58                 i = 0;
  59                 while ( fgets( buf, sizeof(buf), fp ) != NULL && i < entries ) {
  60                         if ( buf[0] == '#' )
  61                                 continue;
  62
  63                         if ( (s = strchr( buf, '\n' )) != NULL )
  64                                 *s = '\0';
  65
  66                         if ( (s = strchr( buf, '\t' )) == NULL )
  67                                 continue;
  68                         *s++ = '\0';
  69
  70                         if ( *s == '"' ) {
  71                                 int     esc = 0, found = 0;
  72
  73                                 for ( ++s; *s && !found; s++ ) {
  74                                         switch ( *s ) {
  75                                         case '\\':
  76                                                 esc = 1;
  77                                                 break;
  78                                         case '"':
  79                                                 if ( !esc )
  80                                                         found = 1;
  81                                                 /* FALL */
  82                                         default:
  83                                                 esc = 0;
  84                                                 break;
  85                                         }
  86                                 }
  87                         }
  88
  89                         (*map)[i].lf_unfriendly = LDAP_STRDUP( buf );
  90                         (*map)[i].lf_friendly   = LDAP_STRDUP( s );
  91                         i++;
  92                 }
  93
  94                 fclose( fp );
  95                 (*map)[i].lf_unfriendly = NULL;
  96         }
  97
  98         for ( i = 0; (*map)[i].lf_unfriendly != NULL; i++ ) {
  99                 if ( strcasecmp( uname, (*map)[i].lf_unfriendly ) == 0 )
 100                         return( (*map)[i].lf_friendly );
 101         }
 102         return( uname );
 103 }
 104
 105
 106 void
 107 ldap_free_friendlymap( LDAPFriendlyMap **map )
 108 {
 109         LDAPFriendlyMap* pF = *map;
 110
 111         if ( pF == NULL )
 112                 return;
 113
 114         while ( pF->lf_unfriendly )
 115         {
 116                 LDAP_FREE( pF->lf_unfriendly );
 117                 LDAP_FREE( pF->lf_friendly );
 118                 pF++;
 119         }
 120         LDAP_FREE( *map );
 121         *map = NULL;
 122 }