1 /* Test of execute.
2 Copyright (C) 2020-2021 Free Software Foundation, Inc.
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3, or (at your option)
7 any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, see <https://www.gnu.org/licenses/>. */
16
17 #include <config.h>
18
19 #include "execute.h"
20
21 #include <stdbool.h>
22 #include <stdio.h>
23 #include <string.h>
24 #include <unistd.h>
25
26 #include "read-file.h"
27 #include "macros.h"
28
29 #define DATA_FILENAME "test-execute-script.tmp"
30
31 int
main()32 main ()
33 {
34 unlink (DATA_FILENAME);
35
36 /* Check an invocation of an executable script.
37 This should only be supported if the script has a '#!' marker; otherwise
38 it is unsecure: <https://sourceware.org/bugzilla/show_bug.cgi?id=13134>.
39 POSIX says that the execlp() and execvp() functions support executing
40 shell scripts
41 <https://pubs.opengroup.org/onlinepubs/9699919799/functions/exec.html>,
42 but this is considered an antiquated feature. */
43
44 /* This test is an extension of
45 "Check stdout is inherited, part 1 (regular file)"
46 in test-execute-main.c. */
47 FILE *fp = freopen (DATA_FILENAME, "w", stdout);
48 ASSERT (fp != NULL);
49
50 {
51 size_t i;
52
53 for (i = 0; i < 2; i++)
54 {
55 const char *progname =
56 (i == 0 ? "executable-script" : "executable-script.sh");
57 const char *prog_path =
58 (i == 0 ? SRCDIR "executable-script" : SRCDIR "executable-script.sh");
59 const char *prog_argv[2] = { prog_path, NULL };
60
61 int ret = execute (progname, prog_argv[0], prog_argv, NULL,
62 false, false, false, false, true, false, NULL);
63 ASSERT (ret == 127);
64 }
65 }
66
67 #if defined _WIN32 && !defined __CYGWIN__
68 /* On native Windows, scripts - even with '#!' marker - are not executable.
69 Only .bat and .cmd files are. */
70 ASSERT (fclose (fp) == 0);
71 ASSERT (unlink (DATA_FILENAME) == 0);
72 fprintf (stderr, "Skipping test: scripts are not executable on this platform.\n");
73 return 77;
74 #else
75 {
76 const char *progname = "executable-shell-script";
77 const char *prog_path = SRCDIR "executable-shell-script";
78 const char *prog_argv[2] = { prog_path, NULL };
79
80 int ret = execute (progname, prog_argv[0], prog_argv, NULL,
81 false, false, false, false, true, false, NULL);
82 ASSERT (ret == 0);
83
84 ASSERT (fclose (fp) == 0);
85
86 size_t length;
87 char *contents = read_file (DATA_FILENAME, 0, &length);
88 ASSERT (length == 11 && memcmp (contents, "Halle Potta", 11) == 0);
89 }
90
91 ASSERT (unlink (DATA_FILENAME) == 0);
92
93 return 0;
94 #endif
95 }
96