diff options
Diffstat (limited to 'libraries/librewrite/rewrite.c')
| -rw-r--r-- | libraries/librewrite/rewrite.c | 195 |
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 @@ -0,0 +1,195 @@ +/* $OpenLDAP$ */ +/* 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; +} + |