2 * Copyright (C) Joerg Lenneis 2003
3 * Copyright (C) Frank Lahm 2010
4 * All Rights Reserved. See COPYING.
9 #endif /* HAVE_CONFIG_H */
11 #include <arpa/inet.h>
15 #include <sys/param.h>
18 #include <atalk/unicode.h>
19 #include <atalk/logger.h>
20 #include <atalk/cnid_dbd_private.h>
21 #include <atalk/volume.h>
24 static const struct vol *volume;
28 * This implementation is portable, but could probably be faster by using htonl
29 * where appropriate. Also, this again doubles code from the cdb backend.
31 static void pack_devino(unsigned char *buf, dev_t dev, ino_t ino)
33 buf[CNID_DEV_LEN - 1] = dev; dev >>= 8;
34 buf[CNID_DEV_LEN - 2] = dev; dev >>= 8;
35 buf[CNID_DEV_LEN - 3] = dev; dev >>= 8;
36 buf[CNID_DEV_LEN - 4] = dev; dev >>= 8;
37 buf[CNID_DEV_LEN - 5] = dev; dev >>= 8;
38 buf[CNID_DEV_LEN - 6] = dev; dev >>= 8;
39 buf[CNID_DEV_LEN - 7] = dev; dev >>= 8;
40 buf[CNID_DEV_LEN - 8] = dev;
42 buf[CNID_DEV_LEN + CNID_INO_LEN - 1] = ino; ino >>= 8;
43 buf[CNID_DEV_LEN + CNID_INO_LEN - 2] = ino; ino >>= 8;
44 buf[CNID_DEV_LEN + CNID_INO_LEN - 3] = ino; ino >>= 8;
45 buf[CNID_DEV_LEN + CNID_INO_LEN - 4] = ino; ino >>= 8;
46 buf[CNID_DEV_LEN + CNID_INO_LEN - 5] = ino; ino >>= 8;
47 buf[CNID_DEV_LEN + CNID_INO_LEN - 6] = ino; ino >>= 8;
48 buf[CNID_DEV_LEN + CNID_INO_LEN - 7] = ino; ino >>= 8;
49 buf[CNID_DEV_LEN + CNID_INO_LEN - 8] = ino;
53 int didname(DB *dbp _U_, const DBT *pkey _U_, const DBT *pdata, DBT *skey)
57 memset(skey, 0, sizeof(DBT));
58 skey->data = (char *)pdata->data + CNID_DID_OFS;
59 /* FIXME: At least DB 4.0.14 and 4.1.25 pass in the correct length of
60 pdata.size. strlen is therefore not needed. Also, skey should be zeroed
62 len = strlen((char *)skey->data + CNID_DID_LEN);
63 skey->size = CNID_DID_LEN + len + 1;
68 int devino(DB *dbp _U_, const DBT *pkey _U_, const DBT *pdata, DBT *skey)
70 memset(skey, 0, sizeof(DBT));
71 skey->data = (char *)pdata->data + CNID_DEVINO_OFS;
72 skey->size = CNID_DEVINO_LEN;
77 int idxname(DB *dbp _U_, const DBT *pkey _U_, const DBT *pdata, DBT *skey)
79 static char buffer[MAXPATHLEN +2];
80 uint16_t flags = CONV_TOLOWER;
81 memset(skey, 0, sizeof(DBT));
83 if (convert_charset(volume->v_volcharset,
86 (char *)pdata->data + CNID_NAME_OFS,
87 strlen((char *)pdata->data + CNID_NAME_OFS),
90 &flags) == (size_t)-1) {
91 LOG(log_error, logtype_cnid, "idxname: conversion error");
95 skey->size = strlen(skey->data);
99 void pack_setvol(const struct vol *vol)
104 /* The equivalent to make_cnid_data in the cnid library. Non re-entrant. We
105 differ from make_cnid_data in that we never return NULL, rqst->name cannot
106 ever cause start[] to overflow because name length is checked in libatalk. */
108 unsigned char *pack_cnid_data(struct cnid_dbd_rqst *rqst)
110 static unsigned char start[CNID_HEADER_LEN + MAXPATHLEN + 1];
111 unsigned char *buf = start +CNID_LEN;
114 pack_devino(buf, rqst->dev, rqst->ino);
115 buf += CNID_DEVINO_LEN;
117 i = htonl(rqst->type);
118 memcpy(buf, &i, sizeof(i));
121 /* did is already in network byte order */
122 buf = memcpy(buf, &rqst->did, sizeof(rqst->did));
123 buf += sizeof(rqst->did);
124 buf = memcpy(buf, rqst->name, rqst->namelen);
125 *(buf + rqst->namelen) = '\0';