1 files changed, 72 insertions, 0 deletions
diff --git a/lib/libc/gen/posixshm.c b/lib/libc/gen/posixshm.c
new file mode 100644
index 0000000..05fc1c9
--- /dev/null
+++ b/lib/libc/gen/posixshm.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2000 Massachusetts Institute of Technology
+ *
+ * Permission to use, copy, modify, and distribute this software and
+ * its documentation for any purpose and without fee is hereby
+ * granted, provided that both the above copyright notice and this
+ * permission notice appear in all copies, that both the above
+ * copyright notice and this permission notice appear in all
+ * supporting documentation, and that the name of M.I.T. not be used
+ * in advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.  M.I.T. makes
+ * no representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied
+ * warranty.
+ *
+ * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
+ * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
+ * SHALL M.I.T. 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "namespace.h"
+#include <sys/types.h>
+#include <sys/fcntl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <unistd.h>
+#include "un-namespace.h"
+
+int
+shm_open(const char *path, int flags, mode_t mode)
+{
+	int fd;
+	struct stat stab;
+
+	if ((flags & O_ACCMODE) == O_WRONLY)
+		return (EINVAL);
+
+	fd = _open(path, flags, mode);
+	if (fd != -1) {
+		if (_fstat(fd, &stab) != 0 || !S_ISREG(stab.st_mode)) {
+			_close(fd);
+			errno = EINVAL;
+			return (-1);
+		}
+
+		if (_fcntl(fd, F_SETFL, (int)FPOSIXSHM) != 0) {
+			_close(fd);
+			return (-1);
+		}
+	}
+	return (fd);
+}
+
+int
+shm_unlink(const char *path)
+{
+	return (unlink(path));
+}