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explain_dirfd_or_die(3) Library Functions Manual explain_dirfd_or_die(3) 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 1.3 Copyright (C) 2009 Peter Miller explain_dirfd_or_die(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLE | SEE ALSO | COPYRIGHT
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