summaryrefslogtreecommitdiff
path: root/e2fslib/llseek.c
diff options
context:
space:
mode:
Diffstat (limited to 'e2fslib/llseek.c')
-rw-r--r--e2fslib/llseek.c132
1 files changed, 0 insertions, 132 deletions
diff --git a/e2fslib/llseek.c b/e2fslib/llseek.c
deleted file mode 100644
index e8be331..0000000
--- a/e2fslib/llseek.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * llseek.c -- stub calling the llseek system call
- *
- * Copyright (C) 1994, 1995, 1996, 1997 Theodore Ts'o.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- */
-
-#define _LARGEFILE_SOURCE
-#define _LARGEFILE64_SOURCE
-
-#if HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-
-#if HAVE_ERRNO_H
-#include <errno.h>
-#endif
-#if HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#ifdef __MSDOS__
-#include <io.h>
-#endif
-#include "et/com_err.h"
-#include "ext2_io.h"
-
-#ifdef __linux__
-
-#if defined(HAVE_LSEEK64) && defined(HAVE_LSEEK64_PROTOTYPE)
-
-#define my_llseek lseek64
-
-#elif defined(HAVE_LLSEEK)
-#include <syscall.h>
-
-#ifndef HAVE_LLSEEK_PROTOTYPE
-extern long long llseek (int fd, long long offset, int origin);
-#endif
-
-#define my_llseek llseek
-
-#else /* ! HAVE_LLSEEK */
-
-#if defined(__alpha__) || defined (__ia64__)
-
-#define llseek lseek
-
-#else /* !__alpha__ && !__ia64__*/
-
-#include <linux/unistd.h>
-
-#ifndef __NR__llseek
-#define __NR__llseek 140
-#endif
-
-#ifndef __i386__
-static int _llseek (unsigned int, unsigned long,
- unsigned long, ext2_loff_t *, unsigned int);
-
-static _syscall5(int,_llseek,unsigned int,fd,unsigned long,offset_high,
- unsigned long, offset_low,ext2_loff_t *,result,
- unsigned int, origin)
-#endif
-
-static ext2_loff_t my_llseek (int fd, ext2_loff_t offset, int origin)
-{
- ext2_loff_t result;
- int retval;
-
-#ifndef __i386__
- retval = _llseek(fd, ((unsigned long long) offset) >> 32,
-#else
- retval = syscall(__NR__llseek, fd, (unsigned long long) (offset >> 32),
-#endif
- ((unsigned long long) offset) & 0xffffffff,
- &result, origin);
- return (retval == -1 ? (ext2_loff_t) retval : result);
-}
-
-#endif /* __alpha__ || __ia64__ */
-
-#endif /* HAVE_LLSEEK */
-
-ext2_loff_t ext2fs_llseek (int fd, ext2_loff_t offset, int origin)
-{
- ext2_loff_t result;
- static int do_compat = 0;
-
- if ((sizeof(off_t) >= sizeof(ext2_loff_t)) ||
- (offset < ((ext2_loff_t) 1 << ((sizeof(off_t)*8) -1))))
- return lseek(fd, (off_t) offset, origin);
-
- if (do_compat) {
- errno = EINVAL;
- return -1;
- }
-
- result = my_llseek (fd, offset, origin);
- if (result == -1 && errno == ENOSYS) {
- /*
- * Just in case this code runs on top of an old kernel
- * which does not support the llseek system call
- */
- do_compat++;
- errno = EINVAL;
- }
- return result;
-}
-
-#else /* !linux */
-
-#ifndef EINVAL
-#define EINVAL EXT2_ET_INVALID_ARGUMENT
-#endif
-
-ext2_loff_t ext2fs_llseek (int fd, ext2_loff_t offset, int origin)
-{
- if ((sizeof(off_t) < sizeof(ext2_loff_t)) &&
- (offset >= ((ext2_loff_t) 1 << ((sizeof(off_t)*8) -1)))) {
- errno = EINVAL;
- return -1;
- }
- return lseek (fd, (off_t) offset, origin);
-}
-
-#endif /* linux */
-
-