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
|
/* Check execvpe script argument handling.
Copyright (C) 2016-2020 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/param.h>
static char *fname1;
static char *fname2;
static char *logname;
static void do_prepare (void);
#define PREPARE(argc, argv) do_prepare ()
static int do_test (void);
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
static void
do_prepare (void)
{
int logfd = create_temp_file ("logfile", &logname);
close (logfd);
int fd1 = create_temp_file ("testscript", &fname1);
dprintf (fd1, "echo foo $1 $2 $3 > %s\n", logname);
fchmod (fd1, 0700);
close (fd1);
int fd2 = create_temp_file ("testscript", &fname2);
dprintf (fd2, "echo foo > %s\n", logname);
fchmod (fd2, 0700);
close (fd2);
}
static int
run_script (const char *fname, char *args[])
{
/* We want to test the `execvpe' function. To do this we restart the
program with an additional parameter. */
int status;
pid_t pid = fork ();
if (pid == 0)
{
execvpe (fname, args, NULL);
puts ("Cannot exec");
exit (EXIT_FAILURE);
}
else if (pid == (pid_t) -1)
{
puts ("Cannot fork");
return 1;
}
/* Wait for the child. */
if (waitpid (pid, &status, 0) != pid)
{
puts ("Wrong child");
return 1;
}
if (WTERMSIG (status) != 0)
{
puts ("Child terminated incorrectly");
return 1;
}
return 0;
}
static int
check_output (const char *expected)
{
/* Check log output. */
FILE *arq = fopen (logname, "r");
if (arq == NULL)
{
puts ("Error opening output file");
return 1;
}
char line[128];
if (fgets (line, sizeof (line), arq) == NULL)
{
puts ("Error reading output file");
return 1;
}
fclose (arq);
if (strcmp (line, expected) != 0)
{
puts ("Output file different than expected");
return 1;
}
return 0;
}
static int
do_test (void)
{
if (setenv ("PATH", test_dir, 1) != 0)
{
puts ("setenv failed");
return 1;
}
/* First check resulting script run with some arguments results in correct
output file. */
char *args1[] = { fname1, (char*) "1", (char *) "2", (char *) "3", NULL };
if (run_script (fname1,args1))
return 1;
if (check_output ("foo 1 2 3\n"))
return 1;
/* Same as before but with an expected empty argument list. */
char *args2[] = { fname2, NULL };
if (run_script (fname2, args2))
return 1;
if (check_output ("foo\n"))
return 1;
/* Same as before but with an empty argument list. */
char *args3[] = { NULL };
if (run_script (fname2, args3))
return 1;
if (check_output ("foo\n"))
return 1;
return 0;
}
|
