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
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
/* Test of sh-quote module.
Copyright (C) 2012-2023 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2012. */
#include <config.h>
/* Specification. */
#include "sh-quote.h"
#include <limits.h>
#include <string.h>
#include "macros.h"
static void
check_one (const char *input, const char *expected)
{
char buf[1000];
size_t output_len;
char *output;
char *bufend;
output_len = shell_quote_length (input);
output = shell_quote (input);
ASSERT (strlen (output) == output_len);
ASSERT (output_len <= sizeof (buf) - 2);
memset (buf, '\0', output_len + 1);
buf[output_len + 1] = '%';
bufend = shell_quote_copy (buf, input);
ASSERT (bufend == buf + output_len);
ASSERT (memcmp (buf, output, output_len + 1) == 0);
ASSERT (buf[output_len + 1] == '%');
ASSERT (strcmp (output, expected) == 0);
free (output);
}
int
main (void)
{
/* Check the shell_quote_length, shell_quote_copy, shell_quote functions. */
{
int c;
/* Empty argument. */
check_one ("", "''");
/* Identifier or number. */
check_one ("foo", "foo");
check_one ("phr0ck", "phr0ck");
/* Whitespace would be interpreted as argument separator by the shell. */
check_one ("foo\tbar", "'foo\tbar'");
check_one ("foo\nbar", "'foo\nbar'");
check_one ("foo\rbar", "'foo\rbar'");
check_one ("foo bar", "'foo bar'");
/* '!' at the beginning of argv[0] would introduce a negated command. */
check_one ("!foo", "'!foo'");
/* '"' would be interpreted as the start of a string. */
check_one ("\"foo\"bar", "'\"foo\"bar'");
/* '#' at the beginning of an argument would be interpreted as the start
of a comment. */
check_one ("#foo", "'#foo'");
/* '$' at the beginning of an argument would be interpreted as a variable
reference. */
check_one ("$foo", "'$foo'");
/* '&' at the beginning of an argument would be interpreted as a background
task indicator. */
check_one ("&", "'&'");
/* "'" would be interpreted as the start of a string. */
check_one ("'foo'bar", "\"'foo'bar\"");
/* '(' at the beginning of argv[0] would introduce a subshell command. */
check_one ("(", "'('");
/* ')' at the beginning of an argument would be interpreted as the end of
the command. */
check_one (")", "')'");
/* '*' would be interpreted as a wildcard character. */
check_one ("*", "'*'");
check_one ("*foo", "'*foo'");
/* ';' at the beginning of an argument would be interpreted as an empty
statement in argv[0] and as the end of the command otherwise. */
check_one (";", "';'");
check_one ("foo;", "'foo;'");
/* '<' would be interpreted as a redirection of stdin. */
check_one ("<", "'<'");
/* '=' inside argv[0] would be interpreted as an environment variable
assignment. */
check_one ("foo=bar", "'foo=bar'");
/* '>' would be interpreted as a redirection of stdout. */
check_one (">", "'>'");
/* '?' would be interpreted as a wildcard character. */
check_one ("?", "'?'");
check_one ("foo?bar", "'foo?bar'");
/* '^' would be interpreted in old /bin/sh, e.g. SunOS 4.1.4. */
check_one ("^", "'^'");
/* "[...]" would be interpreted as a wildcard pattern. */
check_one ("[", "'['");
check_one ("]", "]"); /* or "']'" */
/* '\' would be interpreted as an escape character. */
check_one ("\\foo", "'\\foo'");
/* '`' would be interpreted as the start of a command substitution. */
check_one ("`foo", "'`foo'");
/* '{' at the beginning of argv[0] would introduce a complex command. */
check_one ("{", "'{'");
/* '|' at the beginning of an argument would be interpreted as a pipe
between commands. */
check_one ("|", "'|'");
/* '}' at the beginning of an argument would be interpreted as the end of
the command. */
check_one ("}", "'}'");
/* '~' at the beginning of an argument would be interpreted as a reference
to a user's home directory. */
check_one ("~", "'~'");
check_one ("~foo", "'~foo'");
/* A string that contains both ' and ". */
check_one ("foo'bar\"baz", "'foo'\\''bar\"baz'"); /* or "\"foo'bar\\\"baz\"" */
/* All other characters don't need quoting. */
for (c = 1; c <= UCHAR_MAX; c++)
if (strchr ("\t\n\r !\"#$&'()*;<=>?^[\\]`{|}~", c) == NULL)
{
char s[5];
s[0] = 'a';
s[1] = (char) c;
s[2] = 'z';
s[3] = (char) c;
s[4] = '\0';
check_one (s, s);
}
}
/* Check the shell_quote_argv function. */
{
const char *argv[1];
char *result;
argv[0] = NULL;
result = shell_quote_argv (argv);
ASSERT (strcmp (result, "") == 0);
free (result);
}
{
const char *argv[2];
char *result;
argv[0] = "foo bar/baz";
argv[1] = NULL;
result = shell_quote_argv (argv);
ASSERT (strcmp (result, "'foo bar/baz'") == 0); /* or "\"foo bar/baz\"" */
free (result);
}
{
const char *argv[3];
char *result;
argv[0] = "foo bar/baz";
argv[1] = "$";
argv[2] = NULL;
result = shell_quote_argv (argv);
ASSERT (strcmp (result, "'foo bar/baz' '$'") == 0); /* or "\"foo bar/baz\" \"\\$\"" */
free (result);
}
return 0;
}
|
