about summary refs log tree commit diff
path: root/sysdeps/unix/sysv/linux/alpha/pathconf.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha/pathconf.c')
-rw-r--r--sysdeps/unix/sysv/linux/alpha/pathconf.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/pathconf.c b/sysdeps/unix/sysv/linux/alpha/pathconf.c
new file mode 100644
index 0000000000..91ca0942fb
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/alpha/pathconf.c
@@ -0,0 +1,57 @@
+/* Copyright (C) 1991, 1995, 1996, 1998 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <limits.h>
+#include <fcntl.h>
+#include <sys/statfs.h>
+
+#define EXT2_SUPER_MAGIC	0xef53
+#define UFS_MAGIC		0x00011954
+#define UFS_CIGAM		0x54190100 /* byteswapped MAGIC */
+
+static long int default_pathconf (const char *path, int name);
+
+/* Get file-specific information about PATH.  */
+long int
+__pathconf (const char *path, int name)
+{
+  if (name == _PC_FILESIZEBITS)
+    {
+      /* Test whether this is on a ext2 or UFS filesystem which
+	 support large files.  */
+      struct statfs fs;
+
+      if (__statfs (path, &fs) < 0
+	  || (fs.f_type != EXT2_SUPER_MAGIC
+	      && fs.f_type != UFS_MAGIC
+	      && fs.f_type != UFS_CIGAM))
+	return 32;
+
+      /* This filesystem supported files >2GB.  */
+      return 64;
+    }
+
+  /* Fallback to the generic version.  */
+  return default_pathconf (path, name);
+}
+
+#define __pathconf static default_pathconf
+#include <sysdeps/posix/pathconf.c>