root/phar/phar_path_check.c

/* Generated by re2c 0.13.5 on Fri Feb 25 04:35:39 2011 */
#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"

}