explain_dup2_or_die(3) Library Functions Manual explain_dup2_or_die(3)
NAME
explain_dup2_or_die - duplicate a file descriptor and report errors
SYNOPSIS
#include <libexplain/dup2.h>
void explain_dup2_or_die(int oldfd, int newfd);
DESCRIPTION
The explain_dup2_or_die function is used to call the dup2(2) system call. On failure an explanation will be printed to stderr, obtained
from explain_dup2(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:
explain_dup2_or_die(oldfd, newfd);
oldfd The oldfd, exactly as to be passed to the dup2(2) system call.
newfd The newfd, exactly as to be passed to the dup2(2) system call.
Returns:
This function only returns on success. On failure, prints an explanation and exits.
SEE ALSO
dup2(2) duplicate a file descriptor
explain_dup2(3)
explain dup2(2) errors
exit(2) terminate the calling process
COPYRIGHT
libexplain version 0.52
Copyright (C) 2008 Peter Miller
explain_dup2_or_die(3)