MAN sezione 2 - Torna all'indice

Contents

• NAME
• SYNOPSIS
• DESCRIPTION
• RETURN VALUE
• ERRORS
• CONFORMING TO
• BUGS
• SEE ALSO

NAME

       _llseek - reposition read/write file offset

SYNOPSIS

       #include <unistd.h>

       #include <linux/unistd.h>

       _syscall5(int,  _llseek,  uint,  fd, ulong, hi, ulong, lo,
       loff_t *, res, uint, wh);

       int _llseek(unsigned int fd,  unsigned  long  offset_high,
       unsigned  long  offset_low,  loff_t * result, unsigned int
       whence);

DESCRIPTION

       The _llseek function repositions the offset  of  the  file
       descriptor fd to (offset_high<<32) | offset_low bytes rel­
       ative to the beginning of the file, the  current  position
       in  the file, or the end of the file, depending on whether
       whence is SEEK_SET, SEEK_CUR, or  SEEK_END,  respectively.
       It  returns  the  resulting  file position in the argument
       result.

RETURN VALUE

       Upon successful completion, _llseek returns 0.  Otherwise,
       a value of -1 is returned and errno is set to indicate the
       error.

ERRORS

       EBADF  fd is not an open file descriptor.

       EINVAL whence is invalid.

CONFORMING TO

       This function is Linux-specific, and should not be used in
       programs intended to be portable.

BUGS

       The  ext2 filesystem does not support files with a size of
       2GB or more.

SEE ALSO

       lseek(2)


Linux 1.2.9                10 June 1995                         1