1 /*
2 * Copyright (c) 2013 Todd C. Miller <millert@openbsd.org>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #include <sys/types.h>
18 #include <db.h>
19 #include <string.h>
20
21 #include "grey.h"
22
23 /* Fill in struct gdata from DBT, converting from obsolete format as needed. */
24 int
gdcopyin(const void * v,struct gdata * gd)25 gdcopyin(const void *v, struct gdata *gd)
26 {
27 const DBT *dbd = v;
28 int rc = 0;
29
30 if (dbd->size == sizeof(struct gdata)) {
31 /* Current grey data format. */
32 memcpy(gd, dbd->data, sizeof(struct gdata));
33 } else if (dbd->size == sizeof(struct ogdata)) {
34 /* Backwards compat for obsolete grey data format. */
35 struct ogdata ogd;
36 memcpy(&ogd, dbd->data, sizeof(struct ogdata));
37 gd->first = ogd.first;
38 gd->pass = ogd.pass;
39 gd->expire = ogd.expire;
40 gd->bcount = ogd.bcount;
41 gd->pcount = ogd.pcount;
42 } else {
43 /* Unsupported grey data format. */
44 rc = -1;
45 }
46 return (rc);
47 }
48