From bac2d8aa5e642a70045e713853b13d020b9c5d57 Mon Sep 17 00:00:00 2001
From: Damien Miller <djm@mindrot.org>
Date: Tue, 5 Sep 2000 16:13:06 +1100
Subject:  - (djm) Merge cygwin support from Corinna Vinschen
 <vinschen@cygnus.com>

---
 auth-passwd.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'auth-passwd.c')

diff --git a/auth-passwd.c b/auth-passwd.c
index 93756e9e6..850e25834 100644
--- a/auth-passwd.c
+++ b/auth-passwd.c
@@ -37,6 +37,13 @@ RCSID("$OpenBSD: auth-passwd.c,v 1.16 2000/06/20 01:39:38 markus Exp $");
 # include "md5crypt.h"
 #endif /* defined(HAVE_MD5_PASSWORDS) && !defined(HAVE_MD5_CRYPT) */
 
+#ifdef HAVE_CYGWIN
+#undef ERROR
+#include <windows.h>
+#include <sys/cygwin.h>
+#define is_winnt       (GetVersion() < 0x80000000)
+#endif
+
 /*
  * Tries to authenticate the user using password.  Returns true if
  * authentication succeeds.
@@ -63,11 +70,31 @@ auth_password(struct passwd * pw, const char *password)
 	/* deny if no user. */
 	if (pw == NULL)
 		return 0;
+#ifndef HAVE_CYGWIN
 	if (pw->pw_uid == 0 && options.permit_root_login == 2)
 		return 0;
+#endif
+#ifdef HAVE_CYGWIN
+	/*
+	 * Empty password is only possible on NT if the user has _really_
+	 * an empty password and authentication is done, though.
+	 */
+        if (!is_winnt) 
+#endif
 	if (*password == '\0' && options.permit_empty_passwd == 0)
 		return 0;
 
+#ifdef HAVE_CYGWIN
+	if (is_winnt) {
+		HANDLE hToken = cygwin_logon_user(pw, password);
+
+		if (hToken == INVALID_HANDLE_VALUE)
+			return 0;
+		cygwin_set_impersonation_token(hToken);
+		return 1;
+	}
+#endif
+
 #ifdef SKEY
 	if (options.skey_authentication == 1) {
 		int ret = auth_skey_password(pw, password);
-- 
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