NAME¶

explain_chroot_or_die - change root directory and report errors

SYNOPSIS¶

#include <libexplain/chroot.h>

void explain_chroot_or_die(const char *pathname);
int explain_chroot_on_error(const char *pathname))

DESCRIPTION¶

The explain_chroot_or_die function is used to call the chroot(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_chroot(3) function, and then the process terminates by calling exit(EXIT_FAILURE).

The explain_chroot_on_error function is used to call the chroot(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_chroot(3) function, but still returns to the caller.

pathname

The pathname, exactly as to be passed to the chroot(2) system call.

RETURN VALUE¶

The explain_chroot_or_die function only returns on success, see chroot(2) for more information. On failure, prints an explanation and exits, it does not return.

The explain_chroot_on_error function always returns the value return by the wrapped chroot(2) system call.

EXAMPLE¶

The explain_chroot_or_die function is intended to be used in a fashion similar to the following example:

explain_chroot_or_die(pathname);

SEE ALSO¶

chroot(2)

change root directory

explain_chroot(3)

explain chroot(2) errors

exit(2)

terminate the calling process

COPYRIGHT¶

libexplain version 1.4
Copyright (C) 2009 Peter Miller