1 files changed, 99 insertions, 0 deletions
diff --git a/coreutils/uname.c b/coreutils/uname.c
new file mode 100644
index 0000000..e28285c
--- /dev/null
+++ b/coreutils/uname.c
@@ -0,0 +1,99 @@
+/* vi: set sw=4 ts=4: */
+/* uname -- print system information
+ * Copyright (C) 1989-1999 Free Software Foundation, Inc.
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+/* BB_AUDIT SUSv3 compliant */
+/* http://www.opengroup.org/onlinepubs/007904975/utilities/uname.html */
+
+/* Option		Example
+
+   -s, --sysname	SunOS
+   -n, --nodename	rocky8
+   -r, --release	4.0
+   -v, --version
+   -m, --machine	sun
+   -a, --all		SunOS rocky8 4.0  sun
+
+   The default behavior is equivalent to '-s'.
+
+   David MacKenzie <djm@gnu.ai.mit.edu> */
+
+/* Busyboxed by Erik Andersen */
+
+/* Further size reductions by Glenn McGrath and Manuel Novoa III. */
+
+/* Mar 16, 2003      Manuel Novoa III   (mjn3@codepoet.org)
+ *
+ * Now does proper error checking on i/o.  Plus some further space savings.
+ */
+
+#include <sys/utsname.h>
+#include "libbb.h"
+
+typedef struct {
+	struct utsname name;
+	char processor[8];			/* for "unknown" */
+} uname_info_t;
+
+static const char options[] ALIGN1 = "snrvmpa";
+static const unsigned short utsname_offset[] = {
+	offsetof(uname_info_t, name.sysname),
+	offsetof(uname_info_t, name.nodename),
+	offsetof(uname_info_t, name.release),
+	offsetof(uname_info_t, name.version),
+	offsetof(uname_info_t, name.machine),
+	offsetof(uname_info_t, processor)
+};
+
+int uname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int uname_main(int argc UNUSED_PARAM, char **argv)
+{
+	uname_info_t uname_info;
+#if defined(__sparc__) && defined(__linux__)
+	char *fake_sparc = getenv("FAKE_SPARC");
+#endif
+	const unsigned short *delta;
+	char toprint;
+
+	toprint = getopt32(argv, options);
+
+	if (argv[optind]) { /* coreutils-6.9 compat */
+		bb_show_usage();
+	}
+
+	if (toprint & (1 << 6)) { /* -a => all opts on */
+		toprint = 0x3f;
+	}
+
+	if (toprint == 0) { /* no opts => -s (sysname) */
+		toprint = 1;
+	}
+
+	uname(&uname_info.name); /* never fails */
+
+#if defined(__sparc__) && defined(__linux__)
+	if (fake_sparc && (fake_sparc[0] | 0x20) == 'y') {
+		strcpy(uname_info.name.machine, "sparc");
+	}
+#endif
+
+	strcpy(uname_info.processor, "unknown");
+
+	delta = utsname_offset;
+	do {
+		if (toprint & 1) {
+			/* printf would not be safe here */
+			fputs((char *)(&uname_info) + *delta, stdout);
+			if (toprint > 1) {
+				bb_putchar(' ');
+			}
+		}
+		++delta;
+	} while (toprint >>= 1);
+	bb_putchar('\n');
+
+	fflush_stdout_and_exit(EXIT_SUCCESS); /* coreutils-6.9 compat */
+}