| /* Test of getting user name. |
| Copyright (C) 2010-2020 Free Software Foundation, Inc. |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program 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 General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| |
| /* Written by Bruno Haible and Paul Eggert. */ |
| |
| #include <errno.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #if !(defined _WIN32 && !defined __CYGWIN__) |
| # include <pwd.h> |
| #endif |
| |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| |
| #include "macros.h" |
| |
| static void |
| test_getlogin_result (const char *buf, int err) |
| { |
| if (err != 0) |
| { |
| if (err == ENOENT) |
| { |
| /* This can happen on GNU/Linux. */ |
| fprintf (stderr, "Skipping test: no entry in utmp file.\n"); |
| exit (77); |
| } |
| |
| /* It fails when stdin is not connected to a tty. */ |
| ASSERT (err == ENOTTY |
| || err == EINVAL /* seen on Linux/SPARC */ |
| || err == ENXIO |
| ); |
| #if !defined __hpux /* On HP-UX 11.11 it fails anyway. */ |
| ASSERT (! isatty (0)); |
| #endif |
| fprintf (stderr, "Skipping test: stdin is not a tty.\n"); |
| exit (77); |
| } |
| |
| /* Compare against the value from the environment. */ |
| #if !(defined _WIN32 && !defined __CYGWIN__) |
| /* Unix platform */ |
| { |
| struct stat stat_buf; |
| struct passwd *pwd; |
| |
| if (!isatty (STDIN_FILENO)) |
| { |
| fprintf (stderr, "Skipping test: stdin is not a tty.\n"); |
| exit (77); |
| } |
| |
| ASSERT (fstat (STDIN_FILENO, &stat_buf) == 0); |
| |
| pwd = getpwnam (buf); |
| if (! pwd) |
| { |
| fprintf (stderr, "Skipping test: %s: no such user\n", buf); |
| exit (77); |
| } |
| |
| ASSERT (pwd->pw_uid == stat_buf.st_uid); |
| } |
| #endif |
| #if defined _WIN32 && !defined __CYGWIN__ |
| /* Native Windows platform. |
| Note: This test would fail on Cygwin in an ssh session, because sshd |
| sets USERNAME=SYSTEM. */ |
| { |
| const char *name = getenv ("USERNAME"); |
| if (name != NULL && name[0] != '\0') |
| ASSERT (strcmp (buf, name) == 0); |
| } |
| #endif |
| } |