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
|
/* Copyright (C) 2002-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <signal.h>
#include <paths.h>
#include <support/capture_subprocess.h>
#include <support/check.h>
#include <support/temp_file.h>
#include <support/support.h>
#include <support/xunistd.h>
static char *tmpdir;
static long int namemax;
static void
do_prepare (int argc, char *argv[])
{
tmpdir = support_create_temp_directory ("tst-system-");
/* Include the last '/0'. */
namemax = pathconf (tmpdir, _PC_NAME_MAX) + 1;
TEST_VERIFY_EXIT (namemax != -1);
}
#define PREPARE do_prepare
struct args
{
const char *command;
int exit_status;
int term_sig;
const char *path;
};
static void
call_system (void *closure)
{
struct args *args = (struct args *) closure;
int ret;
if (args->path != NULL)
TEST_COMPARE (setenv ("PATH", args->path, 1), 0);
ret = system (args->command);
if (args->term_sig == 0)
{
/* Expect regular termination. */
TEST_VERIFY (WIFEXITED (ret) != 0);
TEST_COMPARE (WEXITSTATUS (ret), args->exit_status);
}
else
{
/* status_or_signal < 0. Expect termination by signal. */
TEST_VERIFY (WIFSIGNALED (ret) != 0);
TEST_COMPARE (WTERMSIG (ret), args->term_sig);
}
}
static int
do_test (void)
{
TEST_VERIFY (system (NULL) != 0);
{
char cmd[namemax];
memset (cmd, 'a', sizeof(cmd));
cmd[sizeof(cmd) - 1] = '\0';
struct support_capture_subprocess result;
result = support_capture_subprocess (call_system,
&(struct args) {
cmd, 127, 0, tmpdir
});
support_capture_subprocess_check (&result, "system", 0, sc_allow_stderr);
char *returnerr = xasprintf ("%s: execing %s failed: "
"No such file or directory",
basename(_PATH_BSHELL), cmd);
TEST_COMPARE_STRING (result.err.buffer, returnerr);
free (returnerr);
}
{
char cmd[namemax + 1];
memset (cmd, 'a', sizeof(cmd));
cmd[sizeof(cmd) - 1] = '\0';
struct support_capture_subprocess result;
result = support_capture_subprocess (call_system,
&(struct args) {
cmd, 127, 0, tmpdir
});
support_capture_subprocess_check (&result, "system", 0, sc_allow_stderr);
char *returnerr = xasprintf ("%s: execing %s failed: "
"File name too long",
basename(_PATH_BSHELL), cmd);
TEST_COMPARE_STRING (result.err.buffer, returnerr);
free (returnerr);
}
{
struct support_capture_subprocess result;
result = support_capture_subprocess (call_system,
&(struct args) {
"kill $$", 0, SIGTERM
});
support_capture_subprocess_check (&result, "system", 0, sc_allow_none);
}
{
struct support_capture_subprocess result;
result = support_capture_subprocess (call_system,
&(struct args) { "echo ...", 0 });
support_capture_subprocess_check (&result, "system", 0, sc_allow_stdout);
TEST_COMPARE_STRING (result.out.buffer, "...\n");
}
{
struct support_capture_subprocess result;
result = support_capture_subprocess (call_system,
&(struct args) { "exit 1", 1 });
support_capture_subprocess_check (&result, "system", 0, sc_allow_none);
}
{
struct stat64 st;
xstat (_PATH_BSHELL, &st);
mode_t mode = st.st_mode;
xchmod (_PATH_BSHELL, mode & ~(S_IXUSR | S_IXGRP | S_IXOTH));
struct support_capture_subprocess result;
result = support_capture_subprocess (call_system,
&(struct args) {
"exit 1", 127, 0
});
support_capture_subprocess_check (&result, "system", 0, sc_allow_none);
xchmod (_PATH_BSHELL, st.st_mode);
}
TEST_COMPARE (system (""), 0);
return 0;
}
#include <support/test-driver.c>
|
