explain_fdopendir_or_die(3)
NAME
explain_fdopendir_or_die - open a directory and report errors
SYNOPSIS
#include <libexplain/fdopendir.h> DIR *explain_fdopendir_or_die(int fildes); DIR *explain_fdopendir_on_error(int fildes);
DESCRIPTION
The explain_fdopendir_or_die function is used to call the fdopendir(3)
system call. On failure an explanation will be printed to stderr,
obtained from the explain_fdopendir(3) function, and then the process
terminates by calling exit(EXIT_FAILURE).
The explain_fdopendir_on_error function is used to call the
fdopendir(3) system call. On failure an explanation will be printed to
stderr, obtained from the explain_fdopendir(3) function, but still
returns to the caller.
- fildes The fildes, exactly as to be passed to the fdopendir(3) system
- call.
RETURN VALUE
The explain_fdopendir_or_die function only returns on success, see
fdopendir(3) for more information. On failure, prints an explanation
and exits, it does not return.
The explain_fdopendir_on_error function always returns the value return
by the wrapped fdopendir(3) system call.
EXAMPLE
- The explain_fdopendir_or_die function is intended to be used in a fashion similar to the following example:
- DIR *result = explain_fdopendir_or_die(fildes);
SEE ALSO
- fdopendir(3)
- open a directory
- explain_fdopendir(3)
- explain fdopendir(3) errors
- exit(2) terminate the calling process
COPYRIGHT
- libexplain version 0.37
Copyright (C) 2009 Peter Miller