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/* uname - return system name
* Copyright (C) 2022 Ferass EL HAFIDI
*
* 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.
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* 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 <unistd.h>
#include <stdio.h>
#include <sys/utsname.h>
#include <errno.h>
#include "version.h"
#ifndef COMPILETIME
#define COMPILETIME
#endif
int getopt(int argc, char *const argv[], const char *optstring);
void printUsage();
int main(int argc, char *const argv[]) {
int argument;
struct utsname name;
char param[256];
for (int i = 0; i < 256; i++) param[i] = 0;
while ((argument = getopt(argc, argv, "amnrsv")) != -1) {
if (argument == '?') {
printUsage();
return 1;
}
param[argument] = argument;
if (argument == 'a') {
param['s'] = 's';
param['n'] = 'n';
param['r'] = 'r';
param['v'] = 'v';
param['m'] = 'm';
}
}
uname(&name);
if (errno) return errno;
if (argc > 1) {
if (param['s']) printf("%s ", name.sysname);
if (param['n']) printf("%s ", name.nodename);
if (param['r']) printf("%s ", name.release);
if (param['v']) printf("%s ", name.version);
if (param['m']) printf("%s", name.machine);
printf("\n");
}
else
printf("%s\n", name.sysname);
return 0;
}
void printUsage() {
printf("Ferass' Base System. (%s)\n\n"
"Usage: uname [-amnrsv] \n\n"
"Return system name.\n\n"
"\t-a\tSame as -mnrsv\n"
"\t-m\tWrite the hardware's architecture\n"
"\t-n\tWrite the network node hostname\n"
"\t-r\tWrite the operating system release\n"
"\t-s\tWrite the name of the operating system implementation\n"
"\t-v\tWrite the current version of this release of the operating "
"system implementation\n", COMPILETIME);
}
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