explain_lseek_or_die(3) Library Functions Manual 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 0.52
Copyright (C) 2008 Peter Miller
explain_lseek_or_die(3)