ext2_loff_t ext2fs_llseek (int fd, ext2_loff_t offset, int origin)
{
#if SIZEOF_OFF_T >= SIZEOF_LONG_LONG
return my_llseek (fd, offset, origin);
#else
ext2_loff_t result;
static int do_compat = 0;
if (do_compat)
goto fallback;
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++;
fallback:
if (offset < ((ext2_loff_t) 1 << ((sizeof(off_t)*8) -1)))
return lseek(fd, (off_t) offset, origin);
errno = EINVAL;
return -1;
}
return result;
#endif
}
blkid_loff_t blkid_llseek(int fd, blkid_loff_t offset, int whence)
{
blkid_loff_t result;
static int do_compat = 0;
if ((sizeof(off_t) >= sizeof(blkid_loff_t)) ||
(offset < ((blkid_loff_t) 1 << ((sizeof(off_t)*8) -1))))
return lseek(fd, (off_t) offset, whence);
if (do_compat) {
errno = EOVERFLOW;
return -1;
}
result = my_llseek(fd, offset, whence);
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 = EOVERFLOW;
}
return result;
}
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;
}