1 /* 2 * Copyright (c) 2008 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@backplane.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $DragonFly: src/sbin/hammer/cmd_synctid.c,v 1.1 2008/05/13 20:49:34 dillon Exp $ 35 */ 36 37 #include "hammer.h" 38 39 static void synctid_usage(int exit_code); 40 41 /* 42 * synctid <filesystem> [quick] 43 */ 44 void 45 hammer_cmd_synctid(char **av, int ac) 46 { 47 struct hammer_ioc_synctid synctid; 48 const char *filesystem; 49 int fd; 50 51 bzero(&synctid, sizeof(synctid)); 52 synctid.op = HAMMER_SYNCTID_SYNC2; 53 54 if (ac == 0 || ac > 2) { 55 synctid_usage(1); 56 /* not reached */ 57 } 58 filesystem = av[0]; 59 if (ac == 2) { 60 if (strcmp(av[1], "quick") == 0) { 61 synctid.op = HAMMER_SYNCTID_SYNC1; 62 } else { 63 synctid_usage(1); 64 /* not reached */ 65 } 66 } 67 fd = open(filesystem, O_RDONLY); 68 if (fd < 0) { 69 err(1, "Unable to open %s", filesystem); 70 /* not reached */ 71 } 72 if (ioctl(fd, HAMMERIOC_SYNCTID, &synctid) < 0) { 73 err(1, "Synctid %s failed", filesystem); 74 /* not reached */ 75 } else { 76 printf("0x%016jx\n", (uintmax_t)synctid.tid); 77 } 78 close(fd); 79 } 80 81 static 82 void 83 synctid_usage(int exit_code) 84 { 85 fprintf(stderr, "hammer synctid <filesystem> [quick]\n"); 86 exit(exit_code); 87 } 88 89