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125 lines
2.4 KiB
C
125 lines
2.4 KiB
C
/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 2000-2015 The OpenLDAP Foundation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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/* ACKNOWLEDGEMENT:
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* This work was initially developed by Pierangelo Masarati for
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* inclusion in OpenLDAP Software.
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*/
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#include <portable.h>
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#include <stdio.h>
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#include "rewrite-int.h"
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static int
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parse_line(
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char **argv,
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int *argc,
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int maxargs,
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char *buf
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)
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{
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char *p, *begin;
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int in_quoted_field = 0, cnt = 0;
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char quote = '\0';
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for ( p = buf; isspace( (unsigned char) p[ 0 ] ); p++ );
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if ( p[ 0 ] == '#' ) {
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return 0;
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}
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for ( begin = p; p[ 0 ] != '\0'; p++ ) {
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if ( p[ 0 ] == '\\' && p[ 1 ] != '\0' ) {
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p++;
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} else if ( p[ 0 ] == '\'' || p[ 0 ] == '\"') {
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if ( in_quoted_field && p[ 0 ] == quote ) {
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in_quoted_field = 1 - in_quoted_field;
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quote = '\0';
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p[ 0 ] = '\0';
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argv[ cnt ] = begin;
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if ( ++cnt == maxargs ) {
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*argc = cnt;
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return 1;
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}
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for ( p++; isspace( (unsigned char) p[ 0 ] ); p++ );
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begin = p;
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p--;
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} else if ( !in_quoted_field ) {
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if ( p != begin ) {
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return -1;
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}
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begin++;
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in_quoted_field = 1 - in_quoted_field;
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quote = p[ 0 ];
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}
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} else if ( isspace( (unsigned char) p[ 0 ] ) && !in_quoted_field ) {
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p[ 0 ] = '\0';
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argv[ cnt ] = begin;
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if ( ++cnt == maxargs ) {
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*argc = cnt;
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return 1;
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}
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for ( p++; isspace( (unsigned char) p[ 0 ] ); p++ );
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begin = p;
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p--;
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}
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}
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*argc = cnt;
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return 1;
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}
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int
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rewrite_read(
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FILE *fin,
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struct rewrite_info *info
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)
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{
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char buf[ 1024 ];
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char *argv[11];
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int argc, lineno;
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/*
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* Empty rule at the beginning of the context
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*/
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for ( lineno = 0; fgets( buf, sizeof( buf ), fin ); lineno++ ) {
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switch ( parse_line( argv, &argc, sizeof( argv ) - 1, buf ) ) {
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case -1:
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return REWRITE_ERR;
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case 0:
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break;
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case 1:
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if ( strncasecmp( argv[ 0 ], "rewrite", 7 ) == 0 ) {
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int rc;
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rc = rewrite_parse( info, "file", lineno,
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argc, argv );
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if ( rc != REWRITE_SUCCESS ) {
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return rc;
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}
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}
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break;
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}
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}
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return REWRITE_SUCCESS;
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}
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