Provided by: libexplain-dev_1.4.D001-8_amd64
explain_chroot_or_die - change root directory and report errors
#include <libexplain/chroot.h> void explain_chroot_or_die(const char *pathname); int explain_chroot_on_error(const char *pathname))
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.
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.
The explain_chroot_or_die function is intended to be used in a fashion similar to the following example: explain_chroot_or_die(pathname);
chroot(2) change root directory explain_chroot(3) explain chroot(2) errors exit(2) terminate the calling process
libexplain version 1.4 Copyright (C) 2009 Peter Miller explain_chroot_or_die(3)