140 lines
2.4 KiB
C
140 lines
2.4 KiB
C
|
/*
|
||
|
|
* uname - print system information
|
||
|
|
*
|
||
|
|
* usage: uname [-amnrsv]
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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"
|
||
|
|
|
||
|
|
#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 information about the system",
|
||
|
|
(char *)NULL
|
||
|
|
};
|
||
|
|
|
||
|
|
struct builtin uname_struct = {
|
||
|
|
"uname",
|
||
|
|
uname_builtin,
|
||
|
|
BUILTIN_ENABLED,
|
||
|
|
uname_doc,
|
||
|
|
"uname [-amnrsv]",
|
||
|
|
0
|
||
|
|
};
|