- (bal) Reorder. Move all bsd-*, fake-*, next-*, and cygwin* stuff to

   openbsd-compat/.  And resolve all ./configure and Makefile.in issues
   assocated.

Logic:

* All OpenBSD functions should have the same filename as in the OpenBSD
  tree

* All 'home brew' functions have bsd-* infront of them.

* All 'not really implemented' functions have fake-* infront of them.

1 files changed, 105 insertions, 0 deletions

diff --git a/openbsd-compat/bsd-cygwin_util.c b/openbsd-compat/bsd-cygwin_util.c
new file mode 100644
index 000000000..b540ebe1a
--- /dev/null
+++ b/openbsd-compat/bsd-cygwin_util.c
@@ -0,0 +1,105 @@
+/*
+ *
+ * cygwin_util.c
+ *
+ * Author: Corinna Vinschen <vinschen@cygnus.com>
+ *
+ * Copyright (c) 2000 Corinna Vinschen <vinschen@cygnus.com>, Duisburg, Germany
+ *                    All rights reserved
+ *
+ * Created: Sat Sep 02 12:17:00 2000 cv
+ *
+ * This file contains functions for forcing opened file descriptors to
+ * binary mode on Windows systems.
+ */
+
+#include "config.h"
+
+#ifdef HAVE_CYGWIN
+
+#include <fcntl.h>
+#include <io.h>
+#include <stdlib.h>
+#include <sys/vfs.h>
+#include <windows.h>
+#define is_winnt       (GetVersion() < 0x80000000)
+
+int binary_open(const char *filename, int flags, mode_t mode)
+{
+	return open(filename, flags | O_BINARY, mode);
+}
+
+int binary_pipe(int fd[2])
+{
+	int ret = pipe(fd);
+
+	if (!ret) {
+		setmode (fd[0], O_BINARY);
+		setmode (fd[1], O_BINARY);
+	}
+	return ret;
+}
+
+int check_nt_auth(int pwd_authenticated, uid_t uid)
+{
+	/*
+	* The only authentication which is able to change the user
+	* context on NT systems is the password authentication. So
+	* we deny all requsts for changing the user context if another
+	* authentication method is used.
+	* This may change in future when a special openssh
+	* subauthentication package is available.
+	*/
+	if (is_winnt && !pwd_authenticated && geteuid() != uid)
+		return 0;
+	
+	return 1;
+}
+
+int check_ntsec(const char *filename)
+{
+	char *cygwin;
+	int allow_ntea = 0;
+	int allow_ntsec = 0;
+	struct statfs fsstat;
+
+	/* Windows 95/98/ME don't support file system security at all. */
+	if (!is_winnt)
+		return 0;
+
+	/* Evaluate current CYGWIN settings. */
+	if ((cygwin = getenv("CYGWIN")) != NULL) {
+		if (strstr(cygwin, "ntea") && !strstr(cygwin, "nontea"))
+			allow_ntea = 1;
+		if (strstr(cygwin, "ntsec") && !strstr(cygwin, "nontsec"))
+			allow_ntsec = 1;
+	}
+
+	/*
+	 * `ntea' is an emulation of POSIX attributes. It doesn't support
+	 * real file level security as ntsec on NTFS file systems does
+	 * but it supports FAT filesystems. `ntea' is minimum requirement
+	 * for security checks.
+	 */
+	if (allow_ntea)
+		return 1;
+
+	/*
+	 * Retrieve file system flags. In Cygwin, file system flags are
+	 * copied to f_type which has no meaning in Win32 itself.
+	 */
+	if (statfs(filename, &fsstat))
+		return 1;
+
+	/*
+	 * Only file systems supporting ACLs are able to set permissions.
+	 * `ntsec' is the setting in Cygwin which switches using of NTFS
+	 * ACLs to support POSIX permissions on files.
+	 */
+	if (fsstat.f_type & FS_PERSISTENT_ACLS)
+		return allow_ntsec;
+
+	return 0;
+}
+
+#endif /* HAVE_CYGWIN */