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-rw-r--r--libraries/librewrite/rewrite.c195
1 files changed, 195 insertions, 0 deletions
diff --git a/libraries/librewrite/rewrite.c b/libraries/librewrite/rewrite.c
new file mode 100644
index 0000000..4c14b7f
--- /dev/null
+++ b/libraries/librewrite/rewrite.c
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+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2000-2021 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* ACKNOWLEDGEMENT:
+ * This work was initially developed by Pierangelo Masarati for
+ * inclusion in OpenLDAP Software.
+ */
+
+#include <portable.h>
+
+#include <ac/stdlib.h>
+#include <ac/string.h>
+#include <ac/syslog.h>
+#include <ac/regex.h>
+#include <ac/socket.h>
+#include <ac/unistd.h>
+#include <ac/ctype.h>
+#include <ac/string.h>
+#include <stdio.h>
+
+#include <rewrite.h>
+#include <lutil.h>
+#include <ldap.h>
+
+int ldap_debug;
+int ldap_syslog;
+int ldap_syslog_level;
+
+static void
+apply(
+ FILE *fin,
+ const char *rewriteContext,
+ const char *arg
+)
+{
+ struct rewrite_info *info;
+ char *string, *sep, *result = NULL;
+ int rc;
+ void *cookie = &info;
+
+ info = rewrite_info_init( REWRITE_MODE_ERR );
+
+ if ( rewrite_read( fin, info ) != 0 ) {
+ exit( EXIT_FAILURE );
+ }
+
+ rewrite_param_set( info, "prog", "rewrite" );
+
+ rewrite_session_init( info, cookie );
+
+ string = (char *)arg;
+ for ( sep = strchr( rewriteContext, ',' );
+ rewriteContext != NULL;
+ rewriteContext = sep,
+ sep ? sep = strchr( rewriteContext, ',' ) : NULL )
+ {
+ char *errmsg = "";
+
+ if ( sep != NULL ) {
+ sep[ 0 ] = '\0';
+ sep++;
+ }
+ /* rc = rewrite( info, rewriteContext, string, &result ); */
+ rc = rewrite_session( info, rewriteContext, string,
+ cookie, &result );
+
+ switch ( rc ) {
+ case REWRITE_REGEXEC_OK:
+ errmsg = "ok";
+ break;
+
+ case REWRITE_REGEXEC_ERR:
+ errmsg = "error";
+ break;
+
+ case REWRITE_REGEXEC_STOP:
+ errmsg = "stop";
+ break;
+
+ case REWRITE_REGEXEC_UNWILLING:
+ errmsg = "unwilling to perform";
+ break;
+
+ default:
+ if (rc >= REWRITE_REGEXEC_USER) {
+ errmsg = "user-defined";
+ } else {
+ errmsg = "unknown";
+ }
+ break;
+ }
+
+ fprintf( stdout, "%s -> %s [%d:%s]\n", string,
+ ( result ? result : "(null)" ),
+ rc, errmsg );
+ if ( result == NULL ) {
+ break;
+ }
+ if ( string != arg && string != result ) {
+ free( string );
+ }
+ string = result;
+ }
+
+ if ( result && result != arg ) {
+ free( result );
+ }
+
+ rewrite_session_delete( info, cookie );
+
+ rewrite_info_delete( &info );
+}
+
+int
+main( int argc, char *argv[] )
+{
+ FILE *fin = NULL;
+ char *rewriteContext = REWRITE_DEFAULT_CONTEXT;
+ int debug = 0;
+
+ while ( 1 ) {
+ int opt = getopt( argc, argv, "d:f:hr:" );
+
+ if ( opt == EOF ) {
+ break;
+ }
+
+ switch ( opt ) {
+ case 'd':
+ if ( lutil_atoi( &debug, optarg ) != 0 ) {
+ fprintf( stderr, "illegal log level '%s'\n",
+ optarg );
+ exit( EXIT_FAILURE );
+ }
+ break;
+
+ case 'f':
+ fin = fopen( optarg, "r" );
+ if ( fin == NULL ) {
+ fprintf( stderr, "unable to open file '%s'\n",
+ optarg );
+ exit( EXIT_FAILURE );
+ }
+ break;
+
+ case 'h':
+ fprintf( stderr,
+ "usage: rewrite [options] string\n"
+ "\n"
+ "\t\t-f file\t\tconfiguration file\n"
+ "\t\t-r rule[s]\tlist of comma-separated rules\n"
+ "\n"
+ "\tsyntax:\n"
+ "\t\trewriteEngine\t{on|off}\n"
+ "\t\trewriteContext\tcontextName [alias aliasedContextName]\n"
+ "\t\trewriteRule\tpattern subst [flags]\n"
+ "\n"
+ );
+ exit( EXIT_SUCCESS );
+
+ case 'r':
+ rewriteContext = optarg;
+ break;
+ }
+ }
+
+ if ( debug != 0 ) {
+ ber_set_option(NULL, LBER_OPT_DEBUG_LEVEL, &debug);
+ ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, &debug);
+ }
+
+ if ( optind >= argc ) {
+ return -1;
+ }
+
+ apply( ( fin ? fin : stdin ), rewriteContext, argv[ optind ] );
+
+ if ( fin ) {
+ fclose( fin );
+ }
+
+ return 0;
+}
+