Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
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  fol-
       lowing 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 1.3
       Copyright (C) 2008 Peter	Miller

							explain_dup2_or_die(3)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | COPYRIGHT

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=explain_dup2_or_die&sektion=3&manpath=FreeBSD+12.2-RELEASE+and+Ports>

home | help