libc
/* $Id$ */
/* Copyright (c) 2018 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS System libc */
/* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
#include <sys/utsname.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
/* private */
/* prototypes */
static int _uname(char const * progname);
static int _error(char const * progname, char const * message, int ret);
/* functions */
/* uname */
static int _uname(char const * progname)
{
struct utsname name;
if(uname(&name))
return -_error(progname, "utsname", 1);
printf("%s\n", name.machine);
return 0;
}
/* error */
static int _error(char const * progname, char const * message, int ret)
{
fprintf(stderr, "%s: %s: %s\n", progname, message, strerror(errno));
return ret;
}
/* public */
/* functions */
/* main */
int main(int argc, char * argv[])
{
(void) argc;
return (_uname(argv[0]) == 0) ? 0 : 2;
}