summaryrefslogtreecommitdiff
path: root/ext/phar/phar_path_check.c
blob: 7a8ea6089f3c3001fc2e68adb3e34a5201db84a8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
/* 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"

}