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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 0.19
       Copyright (C) 2008 Peter Miller

                                                        explain_dup2_or_die(3)