1 /* Test of getting user name.
2 Copyright (C) 2010-2011 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. */
44 ASSERT (err == ENOTTY);
45 #if !defined __hpux /* On HP-UX 11.11 it fails anyway. */
46 ASSERT (! isatty (0));
48 fprintf (stderr, "Skipping test: stdin is not a tty.\n");
52 /* Compare against the value from the environment. */
53 #if !((defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__)
56 const char *name = getenv ("LOGNAME");
57 if (name == NULL || name[0] == '\0')
58 name = getenv ("USER");
59 if (name != NULL && name[0] != '\0')
60 ASSERT (strcmp (buf, name) == 0);
63 #if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
64 /* Native Windows platform.
65 Note: This test would fail on Cygwin in an ssh session, because sshd
66 sets USERNAME=SYSTEM. */
68 const char *name = getenv ("USERNAME");
69 if (name != NULL && name[0] != '\0')
70 ASSERT (strcmp (buf, name) == 0);
74 /* Test with a small buffer. */
77 size_t n = strlen (buf);
80 for (i = 0; i <= n; i++)
82 err = getlogin_r (smallbuf, i);
84 ASSERT (err == ERANGE || err == EINVAL);
86 ASSERT (err == ERANGE);
90 /* Test with a huge buffer. */
92 static char hugebuf[70000];
94 ASSERT (getlogin_r (hugebuf, sizeof (hugebuf)) == 0);
95 ASSERT (strcmp (hugebuf, buf) == 0);