Added support for win32

bin/rndc/win32/os.c

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2001  Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and 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 INTERNET SOFTWARE CONSORTIUM
+ * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+ * INTERNET SOFTWARE CONSORTIUM 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.
+ */
+
+/* $Id: os.c,v 1.1 2001/08/06 05:35:16 mayer Exp $ */
+
+#include <config.h>
+
+#include <rndc/os.h>
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <errno.h>
+#include <stdio.h>
+#include <sys/stat.h>
+
+int
+set_user(FILE *fd, const char *user) {
+	return (0);
+}
+
+/*
+ * Note that the error code EOPNOTSUPP does not exist
+ * on win32 so we are forced to fall back to using
+ * ENOENT for now. WSAEOPNOTSUPP does exist but it
+ * should only be used for sockets.
+ */
+
+FILE *
+safe_create(const char *filename) {
+	int fd;
+	FILE *f;
+        struct stat sb;
+
+        if (stat(filename, &sb) == -1) {
+                if (errno != ENOENT)
+			return (NULL);
+        } else if ((sb.st_mode & S_IFREG) == 0) {
+		errno = ENOENT;
+		return (NULL);
+	}
+
+	fd = open(filename, O_WRONLY|O_CREAT|O_EXCL, S_IRUSR|S_IWUSR);
+	if (fd == -1)
+		return (NULL);
+	f = fdopen(fd, "w");
+	if (f == NULL)
+		close(fd);
+	return (f);
+}