/*
 * Copyright (c) 2017 Kyle J. Kneitinger <kyle@kneit.in>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include <sys/cdefs.h>
#include "be.h"
#include "be_impl.h"

/*
 * Usage
 */
int
libbe_errno(libbe_handle_t *lbh)
{

	return (lbh->error);
}


const char *
libbe_error_description(libbe_handle_t *lbh)
{

	switch (lbh->error) {
	case BE_ERR_INVALIDNAME:
		return ("invalid boot environment name");

	case BE_ERR_EXISTS:
		return ("boot environment name already taken");

	case BE_ERR_NOENT:
		return ("specified boot environment does not exist");

	case BE_ERR_PERMS:
		return ("insufficient permissions");

	case BE_ERR_DESTROYACT:
		return ("cannot destroy active boot environment");

	case BE_ERR_DESTROYMNT:
		return ("cannot destroy mounted boot env unless forced");

	case BE_ERR_BADPATH:
		return ("path not suitable for operation");

	case BE_ERR_PATHBUSY:
		return ("specified path is busy");

	case BE_ERR_PATHLEN:
		return ("provided path name exceeds maximum length limit");

	case BE_ERR_BADMOUNT:
		return ("mountpoint is not \"/\"");

	case BE_ERR_NOORIGIN:
		return ("could not open snapshot's origin");

	case BE_ERR_MOUNTED:
		return ("boot environment is already mounted");

	case BE_ERR_NOMOUNT:
		return ("boot environment is not mounted");

	case BE_ERR_ZFSOPEN:
		return ("calling zfs_open() failed");

	case BE_ERR_ZFSCLONE:
		return ("error when calling zfs_clone() to create boot env");

	case BE_ERR_IO:
		return ("input/output error");

	case BE_ERR_NOPOOL:
		return ("operation not supported on this pool");

	case BE_ERR_NOMEM:
		return ("insufficient memory");

	case BE_ERR_UNKNOWN:
		return ("unknown error");

	case BE_ERR_INVORIGIN:
		return ("invalid origin");

	case BE_ERR_HASCLONES:
		return ("snapshot has clones");

	default:
		assert(lbh->error == BE_ERR_SUCCESS);
		return ("no error");
	}
}


void
libbe_print_on_error(libbe_handle_t *lbh, bool val)
{

	lbh->print_on_err = val;
	libzfs_print_on_error(lbh->lzh, val);
}


int
set_error(libbe_handle_t *lbh, be_error_t err)
{

	lbh->error = err;
	if (lbh->print_on_err && (err != BE_ERR_SUCCESS))
		fprintf(stderr, "%s\n", libbe_error_description(lbh));

	return (err);
}