1 /* Test of getting user name.
2 Copyright (C) 2010-2012 Free Software Foundation, Inc.
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 of the License, or
7 (at your option) any later version.
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.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* Written by Bruno Haible <bruno@clisp.org>, 2010. */
23 #include "signature.h"
24 SIGNATURE_CHECK (getlogin_r, int, (char *, size_t));
36 /* Test with a large enough buffer. */
40 err = getlogin_r (buf, sizeof (buf));
43 /* getlogin_r() fails when stdin is not connected to a tty. */
45 || errno == EINVAL /* seen on Linux/SPARC */
47 #if !defined __hpux /* On HP-UX 11.11 it fails anyway. */
48 ASSERT (! isatty (0));
50 fprintf (stderr, "Skipping test: stdin is not a tty.\n");
54 /* Compare against the value from the environment. */
55 #if !((defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__)
58 const char *name = getenv ("LOGNAME");
59 if (name == NULL || name[0] == '\0')
60 name = getenv ("USER");
61 if (name != NULL && name[0] != '\0')
62 ASSERT (strcmp (buf, name) == 0);
65 #if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
66 /* Native Windows platform.
67 Note: This test would fail on Cygwin in an ssh session, because sshd
68 sets USERNAME=SYSTEM. */
70 const char *name = getenv ("USERNAME");
71 if (name != NULL && name[0] != '\0')
72 ASSERT (strcmp (buf, name) == 0);
76 /* Test with a small buffer. */
79 size_t n = strlen (buf);
82 for (i = 0; i <= n; i++)
84 err = getlogin_r (smallbuf, i);
86 ASSERT (err == ERANGE || err == EINVAL);
88 ASSERT (err == ERANGE);
92 /* Test with a huge buffer. */
94 static char hugebuf[70000];
96 ASSERT (getlogin_r (hugebuf, sizeof (hugebuf)) == 0);
97 ASSERT (strcmp (hugebuf, buf) == 0);