SIMPLE SOLUTIONS

EXPLAIN_DIRFD_OR_DIE(3) - man page online | library functions

Get directory stream file descriptor and report errors.

Chapter
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 informa‐ tion. 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 fol‐ lowing 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
explain_dirfd_or_die(3)
This manual Reference Other manuals
explain_dirfd_or_die(3) referred by explain(3) | explain_dirfd(3)
refer to dirfd(3) | _exit(2) | explain_dirfd(3)