/*
 * Copyright (c) 2020 Tomohiro Kusumi <tkusumi@netbsd.org>
 * Copyright (c) 2020 The DragonFly Project
 * All rights reserved.
 *
 * This code is derived from software contributed to The DragonFly Project
 * by Matthew Dillon <dillon@dragonflybsd.org>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 3. Neither the name of The DragonFly Project nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific, prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include "hammer2.h"

int
cmd_volume_list(int ac, char **av)
{
        hammer2_ioc_volume_list_t vollist;
        hammer2_ioc_volume_t *entry;
        int fd, i, j, n, w, all = 0, ecode = 0;

        if (ac == 1 && av[0] == NULL) {
                av = get_hammer2_mounts(&ac);
                all = 1;
        }
        vollist.volumes = calloc(HAMMER2_MAX_VOLUMES, sizeof(*vollist.volumes));

        for (i = 0; i < ac; ++i) {
                if (i)
                        printf("\n");
                if (ac > 1 || all)
                        printf("%s\n", av[i]);
                if ((fd = hammer2_ioctl_handle(av[i])) < 0) {
                        ecode = 1;
                        goto failed;
                }

                vollist.nvolumes = HAMMER2_MAX_VOLUMES;
                if (ioctl(fd, HAMMER2IOC_VOLUME_LIST, &vollist) < 0) {
                        perror("ioctl");
                        close(fd);
                        ecode = 1;
                        goto failed;
                }

                w = 0;
                for (j = 0; j < vollist.nvolumes; ++j) {
                        entry = &vollist.volumes[j];
                        n = (int)strlen(entry->path);
                        if (n > w)
                                w = n;
                }

                if (QuietOpt > 0) {
                        for (j = 0; j < vollist.nvolumes; ++j) {
                                entry = &vollist.volumes[j];
                                printf("%s\n", entry->path);
                        }
                } else {
                        char pfs_name[HAMMER2_INODE_MAXNAME+1];
                        strlcpy(pfs_name, vollist.pfs_name, sizeof(pfs_name));
                        printf("version %d\n", vollist.version);
                        printf("@%s\n", pfs_name);
                        for (j = 0; j < vollist.nvolumes; ++j) {
                                entry = &vollist.volumes[j];
                                printf("volume%-2d %-*.*s %s",
                                       entry->id, w, w, entry->path,
                                       sizetostr(entry->size));
                                if (VerboseOpt > 0)
                                        printf(" 0x%016jx 0x%016jx",
                                               (intmax_t)entry->offset,
                                               (intmax_t)entry->size);
                                printf("\n");
                        }
                }
                close(fd);
        }
failed:
        free(vollist.volumes);
        if (all)
                put_hammer2_mounts(ac, av);

        return (ecode);
}