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[glibc.git] / sysdeps / generic / uname.c
blob68335c21f9599040f119d65dd92a52ff1d825bea
1 /* Copyright (C) 1991, 1992, 1996, 1997 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
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 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
19 #include <errno.h>
20 #include <string.h>
21 #include <sys/utsname.h>
22 #include <unistd.h>
24 /* This file is created by the configuration process, and defines UNAME_*. */
25 #include <config-name.h>
27 /* Put information about the system in NAME. */
28 int
29 uname (name)
30 struct utsname *name;
32 int save;
34 if (name == NULL)
36 __set_errno (EINVAL);
37 return -1;
40 save = errno;
41 if (__gethostname (name->nodename, sizeof (name->nodename)) < 0)
43 if (errno == ENOSYS)
45 /* Hostname is meaningless for this machine. */
46 name->nodename[0] = '\0';
47 __set_errno (save);
49 #ifdef ENAMETOOLONG
50 else if (errno == ENAMETOOLONG)
51 /* The name was truncated. */
52 __set_errno (save);
53 #endif
54 else
55 return -1;
57 strncpy (name->sysname, UNAME_SYSNAME, sizeof (name->sysname));
58 strncpy (name->release, UNAME_RELEASE, sizeof (name->release));
59 strncpy (name->version, UNAME_VERSION, sizeof (name->version));
60 strncpy (name->machine, UNAME_MACHINE, sizeof (name->machine));
62 return 0;