vendor/openbsm/1.2-ALPHA-2

1 files changed, 75 insertions, 0 deletions

diff --git a/bin/auditdistd/openat.h b/bin/auditdistd/openat.h
new file mode 100644
index 000000000000..defb94746508
--- /dev/null
+++ b/bin/auditdistd/openat.h
@@ -0,0 +1,75 @@
+/*-
+ * 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_ */