1 files changed, 76 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/mntent.c b/newlib/libc/sys/linux/mntent.c
new file mode 100644
index 000000000..ecd223f50
--- /dev/null
+++ b/newlib/libc/sys/linux/mntent.c
@@ -0,0 +1,76 @@
+/* Utilities for reading/writing fstab, mtab, etc.
+   Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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 <mntent.h>
+#include <stdlib.h>
+#include <libc-symbols.h>
+#include <bits/libc-lock.h>
+
+/* We don't want to allocate the static buffer all the time since it
+   is not always used (in fact, rather infrequently).  Accept the
+   extra cost of a `malloc'.  */
+static char *getmntent_buffer;
+
+/* This is the size of the buffer.  This is really big.  */
+#define BUFFER_SIZE	4096
+
+
+static void
+allocate (void)
+{
+  getmntent_buffer = (char *) malloc (BUFFER_SIZE);
+}
+
+
+struct mntent *
+getmntent (FILE *stream)
+{
+  static struct mntent m;
+  static int once;
+
+  do {
+    if (__pthread_once != NULL)
+      __pthread_once (&once, allocate);
+    else if (once == 0) {
+      allocate ();
+      once = !(0);
+    }
+  } while (0);
+
+
+  if (getmntent_buffer == NULL)
+    /* If no core is available we don't have a chance to run the
+       program successfully and so returning NULL is an acceptable
+       result.  */
+    return NULL;
+
+  return __getmntent_r (stream, &m, getmntent_buffer, BUFFER_SIZE);
+}
+
+
+/* Make sure the memory is freed if the programs ends while in
+   memory-debugging mode and something actually was allocated.  */
+static void
+__attribute__ ((unused))
+free_mem (void)
+{
+  free (getmntent_buffer);
+}
+
+text_set_element (__libc_subfreeres, free_mem);