git.sur5r.net Git - openldap/blob - libraries/librewrite/rewrite.c

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 2000-2004 The OpenLDAP Foundation.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted only as authorized by the OpenLDAP
   9  * Public License.
  10  *
  11  * A copy of this license is available in the file LICENSE in the
  12  * top-level directory of the distribution or, alternatively, at
  13  * <http://www.OpenLDAP.org/license.html>.
  14  */
  15 /* ACKNOWLEDGEMENT:
  16  * This work was initially developed by Pierangelo Masarati for
  17  * inclusion in OpenLDAP Software.
  18  */
  19
  20 #include <portable.h>
  21
  22 #include <ac/stdlib.h>
  23 #include <ac/string.h>
  24 #include <ac/syslog.h>
  25 #include <ac/regex.h>
  26 #include <ac/socket.h>
  27 #include <ac/unistd.h>
  28 #include <ac/ctype.h>
  29 #include <ac/string.h>
  30 #include <stdio.h>
  31
  32 #include <rewrite.h>
  33
  34 int ldap_debug;
  35 int ldap_syslog;
  36 int ldap_syslog_level;
  37
  38 char *
  39 apply(
  40                 FILE *fin,
  41                 const char *rewriteContext,
  42                 const char *arg
  43 )
  44 {
  45         struct rewrite_info *info;
  46         char *string, *sep, *result = NULL;
  47         int rc;
  48         void *cookie = &info;
  49
  50         info = rewrite_info_init( REWRITE_MODE_ERR );
  51
  52         if ( rewrite_read( fin, info ) != 0 ) {
  53                 exit( EXIT_FAILURE );
  54         }
  55
  56         rewrite_param_set( info, "prog", "rewrite" );
  57
  58         rewrite_session_init( info, cookie );
  59
  60         string = strdup( arg );
  61         for ( sep = strchr( rewriteContext, ',' );
  62                         rewriteContext != NULL;
  63                         rewriteContext = sep,
  64                         sep ? sep = strchr( rewriteContext, ',' ) : NULL ) {
  65                 char    *errmsg = "";
  66
  67                 if ( sep != NULL ) {
  68                         sep[ 0 ] = '\0';
  69                         sep++;
  70                 }
  71                 /* rc = rewrite( info, rewriteContext, string, &result ); */
  72                 rc = rewrite_session( info, rewriteContext, string,
  73                                 cookie, &result );
  74
  75                 switch ( rc ) {
  76                 case REWRITE_REGEXEC_OK:
  77                         errmsg = "ok";
  78                         break;
  79
  80                 case REWRITE_REGEXEC_ERR:
  81                         errmsg = "error";
  82                         break;
  83
  84                 case REWRITE_REGEXEC_STOP:
  85                         errmsg = "stop";
  86                         break;
  87
  88                 case REWRITE_REGEXEC_UNWILLING:
  89                         errmsg = "unwilling to perform";
  90                         break;
  91
  92                 default:
  93                         if (rc >= REWRITE_REGEXEC_USER) {
  94                                 errmsg = "user-defined";
  95                         } else {
  96                                 errmsg = "unknown";
  97                         }
  98                         break;
  99                 }
 100
 101                 fprintf( stdout, "%s -> %s [%d:%s]\n", string,
 102                                 ( result ? result : "(null)" ),
 103                                 rc, errmsg );
 104                 if ( result == NULL ) {
 105                         break;
 106                 }
 107                 free( string );
 108                 string = result;
 109         }
 110
 111         free( string );
 112
 113         rewrite_session_delete( info, cookie );
 114
 115         rewrite_info_delete( &info );
 116
 117         return result;
 118 }
 119
 120 int
 121 main( int argc, char *argv[] )
 122 {
 123         FILE *fin = NULL;
 124         char *rewriteContext = REWRITE_DEFAULT_CONTEXT;
 125
 126         while ( 1 ) {
 127                 int opt = getopt( argc, argv, "f:hr:" );
 128
 129                 if ( opt == EOF ) {
 130                         break;
 131                 }
 132
 133                 switch ( opt ) {
 134                 case 'f':
 135                         fin = fopen( optarg, "r" );
 136                         if ( fin == NULL ) {
 137                                 fprintf( stderr, "unable to open file '%s'\n",
 138                                                 optarg );
 139                                 exit( EXIT_FAILURE );
 140                         }
 141                         break;
 142
 143                 case 'h':
 144                         fprintf( stderr,
 145         "usage: rewrite [options] string\n"
 146         "\n"
 147         "\t\t-f file\t\tconfiguration file\n"
 148         "\t\t-r rule[s]\tlist of comma-separated rules\n"
 149         "\n"
 150         "\tsyntax:\n"
 151         "\t\trewriteEngine\t{on|off}\n"
 152         "\t\trewriteContext\tcontextName [alias aliasedContextName]\n"
 153         "\t\trewriteRule\tpattern subst [flags]\n"
 154         "\n"
 155                                 );
 156                         exit( EXIT_SUCCESS );
 157
 158                 case 'r':
 159                         rewriteContext = optarg;
 160                         break;
 161                 }
 162         }
 163
 164         if ( optind >= argc ) {
 165                 return -1;
 166         }
 167
 168         apply( ( fin ? fin : stdin ), rewriteContext, argv[ optind ] );
 169
 170         if ( fin ) {
 171                 fclose( fin );
 172         }
 173
 174         return 0;
 175 }
 176