explain_lseek_or_die(3)
NAME
explain_lseek_or_die - reposition file offset and report errors
SYNOPSIS
#include <libexplain/lseek.h> long long explain_lseek_or_die(int fildes, long long offset, int whence);
DESCRIPTION
The explain_lseek_or_die function is used to call the lseek(2) system
call. On failure an explanation will be printed to stderr, obtained
from explain_lseek(3), and then the process terminates by calling
exit(EXIT_FAILURE).
- This function is intended to be used in a fashion similar to the following example:
- long long result = explain_lseek_or_die(fildes, offset, whence);
- fildes The fildes, exactly as to be passed to the lseek(2) system
- call.
- offset The offset, exactly as to be passed to the lseek(2) system
- call.
- whence The whence, exactly as to be passed to the lseek(2) system
- call.
- Returns:
- On successful, returns the resulting offset location as measured in bytes from the beginning of the file. On failure, prints an explanation and exits.
SEE ALSO
- lseek(2)
- reposition file offset
- explain_lseek(3)
- explain lseek(2) errors
- exit(2) terminate the calling process
COPYRIGHT
- libexplain version 0.37
Copyright (C) 2008 Peter Miller