2 * Copyright (c) 2007 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@backplane.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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
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.
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
34 * $DragonFly: src/sbin/hammer/hammer.c,v 1.6 2008/01/25 05:53:41 dillon Exp $
39 static void hammer_parsetime(u_int64_t
*tidp
, const char *timestr
);
40 static void hammer_parsedevs(const char *blkdevs
);
41 static void usage(int exit_code
);
47 main(int ac
, char **av
)
54 while ((ch
= getopt(ac
, av
, "hf:rv")) != -1) {
80 if (strcmp(av
[0], "now") == 0) {
81 hammer_parsetime(&tid
, "0s");
82 printf("0x%08x\n", (int)(tid
/ 1000000000LL));
85 if (strcmp(av
[0], "stamp") == 0) {
88 hammer_parsetime(&tid
, av
[1]);
89 printf("0x%08x\n", (int)(tid
/ 1000000000LL));
92 if (strcmp(av
[0], "namekey") == 0) {
97 key
= (int64_t)(crc32(av
[1], strlen(av
[1])) & 0x7FFFFFFF) << 32;
100 printf("0x%016llx\n", key
);
103 if (strcmp(av
[0], "namekey32") == 0) {
108 key
= crc32(av
[1], strlen(av
[1])) & 0x7FFFFFFF;
111 printf("0x%08x\n", key
);
115 uuid_name_lookup(&Hammer_FSType
, "DragonFly HAMMER", &status
);
116 if (status
!= uuid_s_ok
) {
117 errx(1, "uuids file does not have the DragonFly "
118 "HAMMER filesystem type");
121 init_alist_templates();
122 if (strcmp(av
[0], "show") == 0) {
126 hammer_parsedevs(blkdevs
);
128 sscanf(av
[1], "%d:%d", &vol_no
, &clu_no
);
129 hammer_cmd_show(vol_no
, clu_no
, 0);
138 * Parse a timestamp for the mount point
145 hammer_parsetime(u_int64_t
*tidp
, const char *timestr
)
158 if (isalpha(timestr
[strlen(timestr
)-1])) {
159 if (sscanf(timestr
, "%d%c", &n
, &c
) != 2)
185 localtime_r(&t
, &tm
);
186 seconds
= (double)tm
.tm_sec
;
189 n
= sscanf(timestr
, "%4d%2d%2d:%2d%2d%lf",
190 &tm
.tm_year
, &tm
.tm_mon
, &tm
.tm_mday
,
191 &tm
.tm_hour
, &tm
.tm_min
, &seconds
);
194 /* if [:hhmmss] is omitted, assume :000000.0 */
196 tm
.tm_hour
= tm
.tm_min
= tm
.tm_sec
= 0;
198 tm
.tm_sec
= (int)seconds
;
201 *tidp
= (u_int64_t
)t
* 1000000000 +
202 (seconds
- (int)seconds
) * 1000000000;
207 hammer_parsedevs(const char *blkdevs
)
212 if (blkdevs
== NULL
) {
213 errx(1, "A -f blkdevs specification is required "
217 copy
= strdup(blkdevs
);
218 while ((volname
= copy
) != NULL
) {
219 if ((copy
= strchr(copy
, ':')) != NULL
)
221 setup_volume(-1, volname
, 0, O_RDONLY
);
232 "hammer stamp <time>\n"
233 "hammer -f blkdevs [-r] show [vol_no[:clu_no]]\n"
235 fprintf(stderr
, " time: +n[s/m/h/D/M/Y]\n"
236 " time: yyyymmdd[:hhmmss]\n");