NAME
explain_dirfd_or_die - get directory stream file descriptor and report
errors
SYNOPSIS
#include <libexplain/dirfd.h>
int explain_dirfd_or_die(DIR *dir);
int explain_dirfd_on_error(DIR *dir);
DESCRIPTION
The explain_dirfd_or_die function is used to call the dirfd(3) system
call. On failure an explanation will be printed to stderr, obtained
from the explain_dirfd(3) function, and then the process terminates by
calling exit(EXIT_FAILURE).
The explain_dirfd_on_error function is used to call the dirfd(3) system
call. On failure an explanation will be printed to stderr, obtained
from the explain_dirfd(3) function, but still returns to the caller.
dir The dir, exactly as to be passed to the dirfd(3) system call.
RETURN VALUE
The explain_dirfd_or_die function only returns on success, see dirfd(3)
for more information. On failure, prints an explanation and exits, it
does not return.
The explain_dirfd_on_error function always returns the value return by
the wrapped dirfd(3) system call.
EXAMPLE
The explain_dirfd_or_die function is intended to be used in a fashion
similar to the following example:
int result = explain_dirfd_or_die(dir);
SEE ALSO
dirfd(3)
get directory stream file descriptor
explain_dirfd(3)
explain dirfd(3) errors
exit(2) terminate the calling process
COPYRIGHT
libexplain version 0.19
Copyright (C) 2009 Peter Miller
explain_dirfd_or_die(3)