| explain_fdopendir_or_die(3) | Library Functions Manual | explain_fdopendir_or_die(3) |
explain_fdopendir_or_die - open a directory and report errors
#include <libexplain/fdopendir.h>
DIR *explain_fdopendir_or_die(int fildes);
DIR *explain_fdopendir_on_error(int fildes);
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.
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.
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);
libexplain version 1.4
Copyright (C) 2009 Peter Miller