1/* Copyright (C) 1998-2024 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library 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 GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <stdio.h>
19#include <stdlib.h>
20#include <string.h>
21
22static int
23do_test (void)
24{
25 const char *name;
26 int retval = 0;
27
28 /* Set TMPDIR to a value other than the traditional /tmp. */
29 setenv (name: "TMPDIR", value: "/usr", replace: 1);
30
31 name = tmpnam (NULL);
32
33 printf (format: "name = %s\n", name);
34
35 /* Make sure the name is not based on the value in TMPDIR. */
36 if (strncmp (name, "/usr", 4) == 0)
37 {
38 puts (s: "error: `tmpnam' used TMPDIR value");
39 retval = 1;
40 }
41
42 /* Test that it is in the directory denoted by P_tmpdir. */
43 if (strncmp (name, P_tmpdir, sizeof (P_tmpdir) - 1) != 0)
44 {
45 puts (s: "error: `tmpnam' return value not in P_tmpdir directory");
46 retval = 1;
47 }
48
49 return retval;
50}
51
52#define TEST_FUNCTION do_test ()
53#include "../test-skeleton.c"
54

source code of glibc/stdio-common/tst-tmpnam.c