1 files changed, 84 insertions, 0 deletions
diff --git a/uname.c b/uname.c
new file mode 100644
index 0000000..87504dc
--- /dev/null
+++ b/uname.c
@@ -0,0 +1,84 @@
+/*
+ * UNG's Not GNU
+ * 
+ * Copyright (c) 2011, Jakob Kaivo <jakob@kaivo.net>
+ * 
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include <stdio.h>
+#include <getopt.h>
+#include <sys/utsname.h>
+
+const char *uname_desc = "return system name";
+const char *uname_inv  = "uname [-amnrsv]";
+
+int
+main(int argc, char **argv)
+{
+  int c;
+  int machine = 0;
+  int nodename = 0;
+  int release = 0;
+  int sysname = 0;
+  int version = 0;
+  struct utsname uts;
+  int space = 0;
+
+  while ((c = getopt (argc, argv, ":amnrsv")) != -1) {
+    switch (c) {
+      case 'a':
+        machine = 1;
+        nodename = 1;
+        release = 1;
+        sysname = 1;
+        version = 1;
+        break;
+      case 'm':
+        machine = 1;
+        break;
+      case 'n':
+        nodename = 1;
+        break;
+      case 'r':
+        release = 1;
+        break;
+      case 's':
+        sysname = 1;
+        break;
+      case 'v':
+        version = 1;
+        break;
+      default:
+        return 1;
+    }
+  }
+
+  if (optind < argc)
+    return 1;
+
+  if (machine == 0 && nodename == 0 && release == 0 && version == 0)
+    sysname = 1;
+
+  uname (&uts);
+
+  if (sysname) space = printf ("%s", uts.sysname);
+  if (nodename) space = printf ("%s%s", space ? " " : "", uts.nodename);
+  if (release) space = printf ("%s%s", space ? " " : "", uts.release);
+  if (version) space = printf ("%s%s", space ? " " : "", uts.version);
+  if (machine) space = printf ("%s%s", space ? " " : "", uts.machine);
+  printf ("\n");
+
+  return 0;
+}