/*
 * 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);
}