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 0.52
Copyright (C) 2009 Peter Miller