debian man page for explain_fcntl_or_die

explain_fcntl_or_die(3) 				     Library Functions Manual					   explain_fcntl_or_die(3)

NAME
       explain_fcntl_or_die - manipulate a file descriptor and report errors

SYNOPSIS
       #include <libexplain/fcntl.h>
       int explain_fcntl_or_die(int fildes, int command, long arg);

DESCRIPTION
       The  explain_fcntl_or_die function is used to call the fcntl(2) system call.  On failure an explanation will be printed to stderr, obtained
       from explain_fcntl(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:
	      int result = explain_fcntl_or_die(fildes, command, arg);

       fildes  The fildes, exactly as to be passed to the fcntl(2) system call.

       command The command, exactly as to be passed to the fcntl(2) system call.

       arg     The arg, exactly as to be passed to the fcntl(2) system call.

       Returns:
	       This function only returns on success, and it returns whatever was returned by the fcntl(2) call; depending on  the  command,  this
	       may have no use.  On failure, prints an explanation and exits, it does not return.

SEE ALSO
       fcntl(2)
	       manipulate a file descriptor

       explain_fcntl(3)
	       explain fcntl(2) errors

       exit(2) terminate the calling process

COPYRIGHT
       libexplain version 0.52
       Copyright (C) 2008 Peter Miller

															   explain_fcntl_or_die(3)