From 53b5bff7806cf317e46a731e0b3bfc574093a683 Mon Sep 17 00:00:00 2001
From: Jeff Johnston <jjohnstn@redhat.com>
Date: Wed, 24 Jul 2002 20:38:32 +0000
Subject: 2002-07-24  Jeff Johnston  <jjohnstn@redhat.com>

        * libc/sys/linux/Makefile.am: Add new files.
        * libc/sys/linux/Makefile.in: Regenerated.
        * libc/sys/linux/fstab.c: New file.
        * libc/sys/linux/fstatvfs.c: Ditto.
        * libc/sys/linux/fstatvfs64.c: Ditto.
        * libc/sys/linux/internal_statvfs.c: Ditto.
        * libc/sys/linux/mntent.c: Ditto.
        * libc/sys/linux/mntent_r.c: Ditto.
        * libc/sys/linux/statvfs.c: Ditto.
        * libc/sys/linux/statvfs64.c: Ditto.
        * libc/sys/linux/include/paths.h: Ditto.
        * libc/sys/linux/inode.c (statfs, fstatfs): New syscalls
        with double-underscore weak-aliases.
        * libc/sys/linux/sys/stat.h: Add *stat64 prototypes.
---
 newlib/libc/sys/linux/mntent.c | 76 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 newlib/libc/sys/linux/mntent.c

(limited to 'newlib/libc/sys/linux/mntent.c')

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);
-- 
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