1 files changed, 66 insertions, 0 deletions
diff --git a/libpthread/nptl/sem_unlink.c b/libpthread/nptl/sem_unlink.c
new file mode 100644
index 000000000..e52a08d15
--- /dev/null
+++ b/libpthread/nptl/sem_unlink.c
@@ -0,0 +1,66 @@
+/* Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <semaphore.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "semaphoreP.h"
+
+
+int
+sem_unlink (const char *name)
+{
+  char *fname;
+  size_t namelen;
+
+  /* Determine where the shmfs is mounted.  */
+  __pthread_once (&__namedsem_once, __where_is_shmfs);
+
+  /* If we don't know the mount points there is nothing we can do.  Ever.  */
+  if (mountpoint.dir == NULL)
+    {
+      __set_errno (ENOSYS);
+      return -1;
+    }
+
+  /* Construct the filename.  */
+  while (name[0] == '/')
+    ++name;
+
+  if (name[0] == '\0')
+    {
+      /* The name "/" is not supported.  */
+      __set_errno (ENOENT);
+      return -1;
+    }
+  namelen = strlen (name);
+
+  /* Create the name of the file.  */
+  fname = (char *) alloca (mountpoint.dirlen + namelen + 1);
+  mempcpy (mempcpy (fname, mountpoint.dir, mountpoint.dirlen),
+	     name, namelen + 1);
+
+  /* Now try removing it.  */
+  int ret = unlink (fname);
+  if (ret < 0 && errno == EPERM)
+    __set_errno (EACCES);
+  return ret;
+}