From: Ulrich Drepper <drepper@redhat.com>
Date: Wed, 16 Feb 2000 18:29:51 +0000 (+0000)
Subject: Linux/PPC truncate64 implementation.
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=da35abcb1ffd9abb86815e8ed764f79343e13e27;p=thirdparty%2Fglibc.git

Linux/PPC truncate64 implementation.
---

diff --git a/sysdeps/unix/sysv/linux/powerpc/truncate64.c b/sysdeps/unix/sysv/linux/powerpc/truncate64.c
new file mode 100644
index 00000000000..71fb7e9ab84
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/truncate64.c
@@ -0,0 +1,63 @@
+/* Copyright (C) 1997, 1998, 1999, 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 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 <sys/types.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+
+#ifdef __NR_truncate64
+/* The variable is shared between all wrappers around *truncate64 calls.  */
+int __have_no_truncate64;
+
+extern int __syscall_truncate64 (const char *path, off64_t length);
+
+
+/* Truncate the file FD refers to to LENGTH bytes.  */
+int
+truncate64 (path, length)
+     const char *path;
+     off64_t length;
+{
+  if (! __have_no_truncate64)
+    {
+      int saved_errno = errno;
+      int result = __syscall_truncate64 (path, length);
+
+      if (result != -1 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __have_no_truncate64 = 1;
+    }
+
+  if ((off_t) length != length)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+  return truncate (path, (off_t) length);
+}
+
+#else
+/* Use the generic implementation.  */
+# include <sysdeps/generic/truncate64.c>
+#endif