Add hostname from Andre Renaud.

diff --git a/toys/hostname.c b/toys/hostname.c
new file mode 100644 (file)
index 0000000..b51fd86
--- /dev/null
+++ b/toys/hostname.c
@@ -0,0 +1,35 @@
+/* vi: set sw=4 ts=4:
+ *
+ * hostname.c - Get/Set the hostname
+ *
+ * Copyright 2012 Andre Renaud <andre@bluewatersys.com>
+ *
+ * Not in SUSv4.
+
+USE_HOSTNAME(NEWTOY(hostname, "", TOYFLAG_BIN))
+
+config HOSTNAME
+       bool "hostname"
+       default n
+       help
+         usage: hostname [newname]
+
+         Get/Set the current hostname
+*/
+
+#include "toys.h"
+
+void hostname_main(void)
+{
+       const char *hostname = toys.optargs[0];
+        if (hostname) {
+            int len = strlen(hostname);
+            if (sethostname(hostname, len))
+                perror_exit("cannot set hostname to '%s'", hostname);
+        } else {
+            char buffer[256];
+            if (gethostname(buffer, sizeof(buffer)))
+                perror_exit("cannot get hostname");
+            xprintf("%s\n", buffer);
+        }
+}