1 files changed, 52 insertions, 0 deletions
diff --git a/uname.c b/uname.c
new file mode 100644
index 0000000..8ea155b
--- /dev/null
+++ b/uname.c
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/*
+ * Copyright (C) 2022, 2023 Ferass El Hafidi <vitali64pmemail@protonmail.com>
+ */
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/utsname.h>
+#include <errno.h>
+#include <string.h>
+
+#define REQ_PRINT_USAGE /* Require print_usage() from common.h */
+#define REQ_ERRPRINT /* Require errprint() from common.h */
+#define DESCRIPTION "Return system name."
+#define OPERANDS    "[-amnrsv]"
+#include "common.h"
+
+#ifdef FASESBOX
+int uname_main(int argc, char *argv[]) {
+#else
+int main(int argc, char *argv[]) {
+#endif
+	int argument;
+	struct utsname name;
+	char param[256];
+	for (int i = 0; i < 256; i++) param[i] = 0;
+	char *argv0 = strdup(argv[0]);
+	while ((argument = getopt(argc, argv, "amnrsv")) != -1) {
+		if (argument == '?') {
+			print_usage(argv[0], DESCRIPTION, OPERANDS, VERSION);
+			return 1;
+		}
+		param[argument] = argument;
+		if (argument == 'a') {
+			param['s'] = 's';
+			param['n'] = 'n';
+			param['r'] = 'r';
+			param['v'] = 'v';
+			param['m'] = 'm';
+		}
+	} argc -= optind; argv += optind;
+
+	uname(&name);
+	if (errno) return errprint(argv0, NULL, errno);
+	if (param['s'] || !(param['m'] && param['v'] && param['r'] && param['n']))
+		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");
+	return errprint(argv0, NULL, errno);
+}