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 1.4
       Copyright (C) 2008 Peter Miller

                                                                           explain_dup2_or_die(3)