20110512-2206

authrhosts.c

@@ -0,0 +1,38 @@
+#include <plan9.h>
+#include <fcall.h>
+#include <u9fs.h>
+
+/*
+ * return whether the user is authenticated.
+ * uses berkeley-style rhosts ``authentication''.
+ * this is only a good idea behind a firewall,
+ * where you trust your network, and even then
+ * not such a great idea.  it's grandfathered.
+ */
+
+static char*
+rhostsauth(Fcall *rx, Fcall *tx)
+{
+	USED(rx);
+	USED(tx);
+
+	return "u9fs rhostsauth: no authentication required";
+}
+
+static char*
+rhostsattach(Fcall *rx, Fcall *tx)
+{
+	USED(tx);
+
+	if(ruserok(remotehostname, 0, rx->uname, rx->uname) < 0){
+		fprint(2, "ruserok(%s, %s) not okay\n", remotehostname, rx->uname);
+		return "u9fs: rhosts authentication failed";
+	}
+	return 0;
+}
+
+Auth authrhosts = {
+	"rhosts",
+	rhostsauth,
+	rhostsattach,
+};