160 lines
3.1 KiB
C
160 lines
3.1 KiB
C
/*
|
|
* uname - print system information
|
|
*
|
|
* usage: uname [-amnrsv]
|
|
*
|
|
*/
|
|
|
|
/*
|
|
Copyright (C) 1999-2009 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU Bash.
|
|
Bash 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.
|
|
|
|
Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <stdio.h>
|
|
|
|
#include "bashtypes.h"
|
|
|
|
#if defined (HAVE_UNAME)
|
|
# include <sys/utsname.h>
|
|
#else
|
|
struct utsname {
|
|
char sysname[32];
|
|
char nodename[32];
|
|
char release[32];
|
|
char version[32];
|
|
char machine[32];
|
|
};
|
|
#endif
|
|
|
|
#include <errno.h>
|
|
|
|
#include "builtins.h"
|
|
#include "shell.h"
|
|
#include "bashgetopt.h"
|
|
#include "common.h"
|
|
|
|
#define FLAG_SYSNAME 0x01 /* -s */
|
|
#define FLAG_NODENAME 0x02 /* -n */
|
|
#define FLAG_RELEASE 0x04 /* -r */
|
|
#define FLAG_VERSION 0x08 /* -v */
|
|
#define FLAG_MACHINE 0x10 /* -m, -p */
|
|
|
|
#define FLAG_ALL 0x1f
|
|
|
|
#ifndef errno
|
|
extern int errno;
|
|
#endif
|
|
|
|
static void uprint();
|
|
|
|
static int uname_flags;
|
|
|
|
uname_builtin (list)
|
|
WORD_LIST *list;
|
|
{
|
|
int opt, r;
|
|
struct utsname uninfo;
|
|
|
|
uname_flags = 0;
|
|
reset_internal_getopt ();
|
|
while ((opt = internal_getopt (list, "amnprsv")) != -1)
|
|
{
|
|
switch (opt)
|
|
{
|
|
case 'a':
|
|
uname_flags |= FLAG_ALL;
|
|
break;
|
|
case 'm':
|
|
case 'p':
|
|
uname_flags |= FLAG_MACHINE;
|
|
break;
|
|
case 'n':
|
|
uname_flags |= FLAG_NODENAME;
|
|
break;
|
|
case 'r':
|
|
uname_flags |= FLAG_RELEASE;
|
|
break;
|
|
case 's':
|
|
uname_flags |= FLAG_SYSNAME;
|
|
break;
|
|
case 'v':
|
|
uname_flags |= FLAG_VERSION;
|
|
break;
|
|
default:
|
|
builtin_usage ();
|
|
return (EX_USAGE);
|
|
}
|
|
}
|
|
list = loptend;
|
|
|
|
if (list)
|
|
{
|
|
builtin_usage ();
|
|
return (EX_USAGE);
|
|
}
|
|
|
|
if (uname_flags == 0)
|
|
uname_flags = FLAG_SYSNAME;
|
|
|
|
/* Only ancient systems will not have uname(2). */
|
|
#ifdef HAVE_UNAME
|
|
if (uname (&uninfo) < 0)
|
|
{
|
|
builtin_error ("cannot get system name: %s", strerror (errno));
|
|
return (EXECUTION_FAILURE);
|
|
}
|
|
#else
|
|
builtin_error ("cannot get system information: uname(2) not available");
|
|
return (EXECUTION_FAILURE);
|
|
#endif
|
|
|
|
uprint (FLAG_SYSNAME, uninfo.sysname);
|
|
uprint (FLAG_NODENAME, uninfo.nodename);
|
|
uprint (FLAG_RELEASE, uninfo.release);
|
|
uprint (FLAG_VERSION, uninfo.version);
|
|
uprint (FLAG_MACHINE, uninfo.machine);
|
|
|
|
return (EXECUTION_SUCCESS);
|
|
}
|
|
|
|
static void
|
|
uprint (flag, info)
|
|
int flag;
|
|
char *info;
|
|
{
|
|
if (uname_flags & flag)
|
|
{
|
|
uname_flags &= ~flag;
|
|
printf ("%s%c", info, uname_flags ? ' ' : '\n');
|
|
}
|
|
}
|
|
|
|
char *uname_doc[] = {
|
|
"Display system information.",
|
|
"",
|
|
"Display information about the system hardware and OS.",
|
|
(char *)NULL
|
|
};
|
|
|
|
struct builtin uname_struct = {
|
|
"uname",
|
|
uname_builtin,
|
|
BUILTIN_ENABLED,
|
|
uname_doc,
|
|
"uname [-amnrsv]",
|
|
0
|
|
};
|