php-src/ext/phar/phar_path_check.c

/* Generated by re2c 0.13.5 on Sun Jan  1 10:36:11 2012 */
#line 1 "ext/phar/phar_path_check.re"
/*
  +----------------------------------------------------------------------+
  | phar php single-file executable PHP extension                        |
  +----------------------------------------------------------------------+
  | Copyright (c) 2007-2012 The PHP Group                                |
  +----------------------------------------------------------------------+
  | This source file is subject to version 3.01 of the PHP license,      |
  | that is bundled with this package in the file LICENSE, and is        |
  | available through the world-wide-web at the following url:           |
  | http://www.php.net/license/3_01.txt.                                 |
  | If you did not receive a copy of the PHP license and are unable to   |
  | obtain it through the world-wide-web, please send a note to          |
  | license@php.net so we can mail you a copy immediately.               |
  +----------------------------------------------------------------------+
  | Authors: Marcus Boerger <helly@php.net>                              |
  +----------------------------------------------------------------------+
*/

/* $Id$ */

#include "phar_internal.h"

phar_path_check_result phar_path_check(char **s, int *len, const char **error)
{
	const unsigned char *p = (const unsigned char*)*s;
	const unsigned char *m;

	if (*len == 1 && *p == '.') {
		*error = "current directory reference";
		return pcr_err_curr_dir;
	} else if (*len == 2 && p[0] == '.' && p[1] == '.') {
		*error = "upper directory reference";
		return pcr_err_up_dir;
	}

#define YYCTYPE         unsigned char
#define YYCURSOR        p
#define YYLIMIT         p+*len
#define YYMARKER        m
#define YYFILL(n)

loop:

#line 47 "ext/phar/phar_path_check.c"
{
	YYCTYPE yych;

	if ((YYLIMIT - YYCURSOR) < 4) YYFILL(4);
	yych = *YYCURSOR;
	if (yych <= '.') {
		if (yych <= '\n') {
			if (yych <= 0x00) goto yy13;
			if (yych <= '\t') goto yy10;
			goto yy12;
		} else {
			if (yych <= 0x19) goto yy10;
			if (yych == '*') goto yy6;
			goto yy15;
		}
	} else {
		if (yych <= '?') {
			if (yych <= '/') goto yy2;
			if (yych <= '>') goto yy15;
			goto yy8;
		} else {
			if (yych == '\\') goto yy4;
			if (yych <= 0x7F) goto yy15;
			goto yy10;
		}
	}
yy2:
	yych = *(YYMARKER = ++YYCURSOR);
	if (yych <= '-') goto yy3;
	if (yych <= '.') goto yy16;
	if (yych <= '/') goto yy18;
yy3:
#line 93 "ext/phar/phar_path_check.re"
	{
			goto loop;
		}
#line 84 "ext/phar/phar_path_check.c"
yy4:
	++YYCURSOR;
#line 60 "ext/phar/phar_path_check.re"
	{
			*error = "back-slash";
			return pcr_err_back_slash;
		}
#line 92 "ext/phar/phar_path_check.c"
yy6:
	++YYCURSOR;
#line 64 "ext/phar/phar_path_check.re"
	{
			*error = "star";
			return pcr_err_star;
		}
#line 100 "ext/phar/phar_path_check.c"
yy8:
	++YYCURSOR;
#line 68 "ext/phar/phar_path_check.re"
	{
			if (**s == '/') {
				(*s)++;
			}
			*len = (p - (const unsigned char*)*s) -1;
			*error = NULL;
			return pcr_use_query;
		}
#line 112 "ext/phar/phar_path_check.c"
yy10:
	++YYCURSOR;
yy11:
#line 76 "ext/phar/phar_path_check.re"
	{
			*error ="illegal character";
			return pcr_err_illegal_char;
		}
#line 121 "ext/phar/phar_path_check.c"
yy12:
	yych = *++YYCURSOR;
	goto yy11;
yy13:
	++YYCURSOR;
#line 80 "ext/phar/phar_path_check.re"
	{
			if (**s == '/') {
				(*s)++;
				(*len)--;
			}
			if ((p - (const unsigned char*)*s) - 1 != *len)
			{
				*error ="illegal character";
				return pcr_err_illegal_char;
			}
			*error = NULL;
			return pcr_is_ok;
		}
#line 141 "ext/phar/phar_path_check.c"
yy15:
	yych = *++YYCURSOR;
	goto yy3;
yy16:
	yych = *++YYCURSOR;
	if (yych <= 0x00) goto yy21;
	if (yych <= '-') goto yy17;
	if (yych <= '.') goto yy20;
	if (yych <= '/') goto yy21;
yy17:
	YYCURSOR = YYMARKER;
	goto yy3;
yy18:
	++YYCURSOR;
#line 48 "ext/phar/phar_path_check.re"
	{
			*error = "double slash";
			return pcr_err_double_slash;
		}
#line 161 "ext/phar/phar_path_check.c"
yy20:
	yych = *++YYCURSOR;
	if (yych <= 0x00) goto yy23;
	if (yych == '/') goto yy23;
	goto yy17;
yy21:
	++YYCURSOR;
#line 56 "ext/phar/phar_path_check.re"
	{
			*error = "current directory reference";
			return pcr_err_curr_dir;
		}
#line 174 "ext/phar/phar_path_check.c"
yy23:
	++YYCURSOR;
#line 52 "ext/phar/phar_path_check.re"
	{
			*error = "upper directory reference";
			return pcr_err_up_dir;
		}
#line 182 "ext/phar/phar_path_check.c"
}
#line 96 "ext/phar/phar_path_check.re"

}