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diff --git a/contrib/openbsm/bin/auditdistd/openat.h b/contrib/openbsm/bin/auditdistd/openat.h
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+/*-
+ * Copyright (c) 2012 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Pawel Jakub Dawidek under sponsorship from
+ * the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $P4: //depot/projects/trustedbsd/openbsm/bin/auditdistd/openat.h#1 $
+ */
+
+#ifndef _OPENAT_H_
+#define _OPENAT_H_
+
+#include <fcntl.h>
+#include <stdarg.h>
+#include <unistd.h>
+
+static int
+openat(int fd, const char *path, int flags, ...)
+{
+ int cfd, ffd, error;
+
+ cfd = open(".", O_RDONLY | O_DIRECTORY);
+ if (cfd == -1)
+ return (-1);
+
+ if (fchdir(fd) == -1) {
+ error = errno;
+ (void)close(cfd);
+ errno = error;
+ return (-1);
+ }
+
+ if ((flags & O_CREAT) != 0) {
+ va_list ap;
+ int mode;
+
+ va_start(ap, flags);
+ mode = va_arg(ap, int);
+ va_end(ap);
+
+ ffd = open(path, flags, mode);
+ } else {
+ ffd = open(path, flags);
+ }
+
+ error = errno;
+ (void)fchdir(cfd);
+ (void)close(cfd);
+ errno = error;
+ return (ffd);
+}
+
+#endif /* !_OPENAT_H_ */
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