1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2012 The FreeBSD Foundation 5 * All rights reserved. 6 * 7 * This software was developed by Semihalf under sponsorship 8 * from the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#include <sys/cdefs.h> 34__FBSDID("$FreeBSD: stable/11/sbin/nandfs/lssnap.c 330449 2018-03-05 07:26:05Z eadler $"); 35#include <sys/types.h> 36 37#include <stdio.h> 38#include <stdlib.h> 39#include <sysexits.h> 40#include <time.h> 41 42#include <fs/nandfs/nandfs_fs.h> 43#include <libnandfs.h> 44 45#include "nandfs.h" 46 47#define NCPINFO 512 48 49static void 50lssnap_usage(void) 51{ 52 53 fprintf(stderr, "usage:\n"); 54 fprintf(stderr, "\tlssnap node\n"); 55} 56 57static void 58print_cpinfo(struct nandfs_cpinfo *cpinfo) 59{ 60 struct tm tm; 61 time_t t; 62 char timebuf[128]; 63 64 t = (time_t)cpinfo->nci_create; 65 localtime_r(&t, &tm); 66 strftime(timebuf, sizeof(timebuf), "%F %T", &tm); 67 68 printf("%20llu %s\n", (unsigned long long)cpinfo->nci_cno, timebuf); 69} 70 71int 72nandfs_lssnap(int argc, char **argv) 73{ 74 struct nandfs_cpinfo *cpinfos; 75 struct nandfs fs; 76 uint64_t next; 77 int error, nsnap, i; 78 79 if (argc != 1) { 80 lssnap_usage(); 81 return (EX_USAGE); 82 } 83 84 cpinfos = malloc(sizeof(*cpinfos) * NCPINFO); 85 if (cpinfos == NULL) { 86 fprintf(stderr, "cannot allocate memory\n"); 87 return (-1); 88 } 89 90 nandfs_init(&fs, argv[0]); 91 error = nandfs_open(&fs); 92 if (error == -1) { 93 fprintf(stderr, "nandfs_open: %s\n", nandfs_errmsg(&fs)); 94 goto out; 95 } 96 97 for (next = 1; next != 0; next = cpinfos[nsnap - 1].nci_next) { 98 nsnap = nandfs_get_snap(&fs, next, cpinfos, NCPINFO); 99 if (nsnap < 1) 100 break; 101 102 for (i = 0; i < nsnap; i++) 103 print_cpinfo(&cpinfos[i]); 104 } 105 106 if (nsnap == -1) 107 fprintf(stderr, "nandfs_get_snap: %s\n", nandfs_errmsg(&fs)); 108 109out: 110 nandfs_close(&fs); 111 nandfs_destroy(&fs); 112 free(cpinfos); 113 return (error); 114} 115