static int doit(char *q,char qtype[2],char ip[4])
{
int r;
uint32 dlen;
unsigned int qlen;
qlen = dns_domain_length(q);
if (qlen > 255) return 0; /* impossible */
if (byte_diff(qtype,2,DNS_T_A) && byte_diff(qtype,2,DNS_T_ANY)) goto REFUSE;
key[0] = '%';
byte_copy(key + 1,4,ip);
r = cdb_find(&c,key,5);
if (!r) r = cdb_find(&c,key,4);
if (!r) r = cdb_find(&c,key,3);
if (!r) r = cdb_find(&c,key,2);
if (r == -1) return 0;
key[0] = '+';
byte_zero(key + 1,2);
if (r && (cdb_datalen(&c) == 2))
if (cdb_read(&c,key + 1,2,cdb_datapos(&c)) == -1) return 0;
byte_copy(key + 3,qlen,q);
case_lowerb(key + 3,qlen + 3);
r = cdb_find(&c,key,qlen + 3);
if (!r) {
byte_zero(key + 1,2);
r = cdb_find(&c,key,qlen + 3);
}
if (!r) goto REFUSE;
if (r == -1) return 0;
dlen = cdb_datalen(&c);
if (dlen > 512) dlen = 512;
if (cdb_read(&c,data,dlen,cdb_datapos(&c)) == -1) return 0;
dns_sortip(data,dlen);
if (dlen > 12) dlen = 12;
while (dlen >= 4) {
dlen -= 4;
if (!response_rstart(q,DNS_T_A,"\0\0\0\5")) return 0;
if (!response_addbytes(data + dlen,4)) return 0;
response_rfinish(RESPONSE_ANSWER);
}
return 1;
REFUSE:
response[2] &= ~4;
response[3] &= ~15;
response[3] |= 5;
return 1;
}
int respond(char *q,char qtype[2],char ip[4])
{
int fd;
int r;
char key[6];
tai_now(&now);
fd = open_read("data.cdb");
if (fd == -1) return 0;
cdb_init(&c,fd);
byte_zero(clientloc,2);
key[0] = 0;
key[1] = '%';
byte_copy(key + 2,4,ip);
r = cdb_find(&c,key,6);
if (!r) r = cdb_find(&c,key,5);
if (!r) r = cdb_find(&c,key,4);
if (!r) r = cdb_find(&c,key,3);
if (!r) r = cdb_find(&c,key,2);
if (r == -1) return 0;
if (r && (cdb_datalen(&c) == 2))
if (cdb_read(&c,clientloc,2,cdb_datapos(&c)) == -1) return 0;
r = doit(q,qtype);
cdb_free(&c);
close(fd);
return r;
}
// This is going to be slow since it is a search by value. I.e. it
// walks through the entire CDB sequentially trying to map a value
// back to its key. Therefore it should only be used in debug or
// error scenarios.
static CCS
_shop_find_cmdline(shopping_state_s *ssp, CCS cmdix)
{
unsigned loc = 0;
cdb_seqinit(&loc, ssp->cdbp);
while (cdb_seqnext(&loc, ssp->cdbp) > 0) {
unsigned len;
CS cmdstate, ix;
len = cdb_datalen(ssp->cdbp);
cmdstate = (CS)alloca(len + 1);
cdb_read(ssp->cdbp, cmdstate, len, cdb_datapos(ssp->cdbp));
cmdstate[len] = '\0';
if ((ix = util_strsep(&cmdstate, FS1)) && !strcmp(cmdix, ix)) {
CS line;
len = cdb_keylen(ssp->cdbp);
line = (CS)putil_malloc(len + 1);
cdb_read(ssp->cdbp, line, len, cdb_keypos(ssp->cdbp));
line[len] = '\0';
return line;
}
}
return NULL;
}
static int __cdbb_findnext(struct cdbb *a, const char *needle, struct nentry *n,
int ignorecase)
{
uint32 kp, dp, ks, vs;
unsigned char *k, *v;
if (cdb_nextkey(a->r, &a->kfindpos) != 1)
return -1;
kp = cdb_keypos(a->r);
ks = cdb_keylen(a->r);
k = alloca(ks);
cdb_read(a->r, k, ks, kp);
dp = cdb_datapos(a->r);
vs = cdb_datalen(a->r);
/* in some cases we do not need to read e.g. when deleting
* or filtering but for simplicity we just do it anyways */
v = alloca(vs);
cdb_read(a->r, v, vs, dp);
/* search value */
if (ignorecase) {
if (strcasestr((char *)v, needle) == NULL)
return 0;
} else {
if (strstr((char *)v, needle) == NULL)
return 0;
}
array_catb(&n->k, (char *)k, ks);
array_catb(&n->e, (char *)v, vs);
return 1;
}
static int __cdbb_copy(struct cdbb *a, size_t ks, size_t vs)
{
unsigned char k[ks];
unsigned char v[vs];
uint32 kp, dp;
int found, filter;
found = 0;
kp = cdb_keypos(a->r);
cdb_read(a->r, k, ks, kp);
dp = cdb_datapos(a->r);
/* in some cases we do not need to read e.g. when deleting
* or filtering but for simplicity we just do it anyways */
cdb_read(a->r, v, vs, dp);
found = cdbb_check_ops(a, k, ks, v, vs);
filter = cdbb_check_filter(a, k, ks, v, vs);
/* if an operation applied or a filter, don't copy */
if (!found && !filter && kp) {
cdb_make_add(a->w, k, ks, v, vs);
return 1;
}
return 0;
}
int
main(int argc, char* argv[]) {
int fd;
static struct cdb c;
errmsg_iam("cdbget");
if(argc < 3)
die(1, "usage: cdbget data.cdb key");
fd = open(argv[1], O_RDONLY | O_BINARY);
if(fd == -1)
diesys(1, "open");
cdb_init(&c, fd);
if(cdb_find(&c, argv[2], str_len(argv[2])) > 0) {
do {
char* x = malloc(cdb_datalen(&c));
if(!x)
die(1, "out of memory");
if(cdb_read(&c, x, cdb_datalen(&c), cdb_datapos(&c)) == -1)
diesys(1, "cdb_read");
buffer_put(buffer_1, x, cdb_datalen(&c));
buffer_put(buffer_1, "\n", 1);
free(x);
} while(cdb_findnext(&c, argv[2], str_len(argv[2])) > 0);
}
buffer_flush(buffer_1);
}
static int do_regex_checks(struct _info *info, char *rr_type, char *key, char *rr_rdata)
{
char *pattern;
unsigned keylen = strlen(key), patlen, vpos;
int nchecks = 0;
if (cdb_findinit(&info->cdbf, &info->cdb, key, keylen) <= 0) {
return (-1);
}
while (cdb_findnext(&info->cdbf) > 0) {
int m;
vpos = cdb_datapos(&info->cdb);
patlen = cdb_datalen(&info->cdb);
pattern = malloc(patlen + 1);
cdb_read(&info->cdb, pattern, patlen, vpos);
pattern[patlen] = '\0';
if (*pattern == '@') {
/*
* Handle special function for data check
*/
if (!strcmp(pattern, "@IP")) {
m = func_ip(info, rr_type, rr_rdata);
if (m) {
++nchecks;
} else {
return (0);
}
} else if (!strcmp(pattern, "@SOA")) {
m = func_soa(info, rr_type, rr_rdata);
if (m) {
++nchecks;
} else {
return (0);
}
}
} else {
m = match(pattern, rr_rdata);
// fprintf(stderr, "*** match %s ", m ? "TRUE " : "false");
// fprintf(stderr, "%s\n", pattern);
if (m) {
++nchecks;
// FIXME: can return now
} else {
sprintf(info->reason, "%s [%s] fails regexp [%s]",
rr_type, rr_rdata, pattern);
}
}
free(pattern);
}
return (nchecks);
}
int OS_DBSearchKeyAddressValue(ListRule *lrule, char *key)
{
int result=-1;
char *val;
unsigned vlen, vpos;
if (lrule->db!= NULL)
{
if(_OS_CDBOpen(lrule->db) == -1) return 0;
// First lookup for a single IP address
if(cdb_find(&lrule->db->cdb, key, strlen(key)) > 0 ) {
vpos = cdb_datapos(&lrule->db->cdb);
vlen = cdb_datalen(&lrule->db->cdb);
val = malloc(vlen);
cdb_read(&lrule->db->cdb, val, vlen, vpos);
result = OSMatch_Execute(val, vlen, lrule->matcher);
free(val);
return result;
} else {
// IP address not found, look for matching subnets
char *tmpkey;
os_strdup(key, tmpkey);
while(strlen(tmpkey) > 0)
{
if(tmpkey[strlen(tmpkey) - 1] == '.')
{
if( cdb_find(&lrule->db->cdb, tmpkey, strlen(tmpkey)) > 0 ) {
vpos = cdb_datapos(&lrule->db->cdb);
vlen = cdb_datalen(&lrule->db->cdb);
val = malloc(vlen);
cdb_read(&lrule->db->cdb, val, vlen, vpos);
result = OSMatch_Execute(val, vlen, lrule->matcher);
free(val);
free(tmpkey);
return result;
}
}
tmpkey[strlen(tmpkey) - 1] = '\0';
}
free(tmpkey);
return 0;
}
}
return 0;
}
int find_client_loc(char loc[2],const char ip[16])
{
int r, fd;
char key[32+3];
static struct cdb c;
fd = open_read("data.cdb");
if (fd == -1) return 0;
cdb_init(&c,fd);
byte_zero(loc,2);
key[0] = 0;
key[1] = '%';
if (byte_equal(ip,12,V4mappedprefix)) {
key[2] = 'f';
byte_copy(key + 3,4,ip+12);
r = cdb_find(&c,key,7);
if (!r) r = cdb_find(&c,key,6);
if (!r) r = cdb_find(&c,key,5);
if (!r) r = cdb_find(&c,key,4);
if (!r) r = cdb_find(&c,key,3);
if (r == -1) return 0;
if (r && (cdb_datalen(&c) == 2))
if (cdb_read(&c,loc,2,cdb_datapos(&c)) == -1) return 0;
} else {
unsigned int n;
key[2] = 's';
ip6_fmt_flat(key+3,ip);
for (n=19; n>3; --n) {
r = cdb_find(&c,key,n);
if (r) break;
}
if (r == -1) return 0;
if (r && (cdb_datalen(&c) == 2))
if (cdb_read(&c,loc,2,cdb_datapos(&c)) == -1) return 0;
}
cdb_free(&c);
close(fd);
return r;
}
static PyObject *
_cdbo_keyiter(CdbObject *self) {
PyObject *key;
char buf[8];
uint32 klen, dlen;
if (! self->eod)
_cdbo_init_eod(self);
while (self->iter_pos < self->eod) {
if (cdb_read(&self->c, buf, 8, self->iter_pos) == -1)
return CDBerr;
uint32_unpack(buf, &klen);
uint32_unpack(buf+4, &dlen);
key = cdb_pyread(self, klen, self->iter_pos + 8);
if (key == NULL)
return NULL;
switch(cdb_find(&self->c,PyString_AsString(key),PyString_Size(key))) {
case -1:
Py_DECREF(key);
key = NULL;
return CDBerr;
case 0:
/* bizarre, impossible? PyExc_RuntimeError? */
PyErr_SetString(PyExc_KeyError,
PyString_AS_STRING((PyStringObject *) key));
Py_DECREF(key);
key = NULL;
default:
if (key == NULL) /* already raised error */
return NULL;
if (cdb_datapos(&self->c) == self->iter_pos + klen + 8) {
/** first occurrence of key in the cdb **/
self->iter_pos += 8 + klen + dlen;
return key;
}
Py_DECREF(key); /* better luck next time around */
self->iter_pos += 8 + klen + dlen;
}
}
return Py_BuildValue(""); /* iter_pos >= eod; we're done */
}
static enum nss_status
__nss_cdb_dobyid(struct nss_cdb *dbp, unsigned long id,
void *result, char *buf, size_t bufl, int *errnop) {
int r;
unsigned len;
const char *data;
if ((r = cdb_find(&dbp->cdb, buf, sprintf(buf, ":%lu", id))) < 0)
return *errnop = errno, NSS_STATUS_UNAVAIL;
len = cdb_datalen(&dbp->cdb);
if (!r || len < 2)
return *errnop = ENOENT, NSS_STATUS_NOTFOUND;
if (!(data = (const char*)cdb_get(&dbp->cdb, len, cdb_datapos(&dbp->cdb))))
return *errnop = errno, NSS_STATUS_UNAVAIL;
return __nss_cdb_dobyname(dbp, data, len, result, buf, bufl, errnop);
}
VALUE mCDB_Reader_get(VALUE self, VALUE key) {
struct cdb db;
VALUE value;
StringValue(key);
int fd = open_cdb_fd(self);
size_t vlen;
cdb_init(&db,fd);
if(cdb_find(&db,RSTRING_PTR(key),RSTRING_LEN(key)) > 0) {
vlen = cdb_datalen(&db);
value = rb_str_buf_new(vlen);
cdb_read(&db,RSTRING_PTR(value),vlen,cdb_datapos(&db));
rb_str_set_len(value,vlen);
return value;
}
close(fd);
return Qnil;
}
int cdbb_readn(struct cdbb *a, char *k, size_t ks, char *v, size_t n)
{
int dlen;
if (cdb_find(a->r, (unsigned char *)k, ks) <= 0)
return -1;
dlen = cdb_datalen(a->r);
if (dlen > n)
return -2;
if (cdb_read(a->r, (unsigned char *)v, dlen, cdb_datapos(a->r)) < 0)
return -3;
return 1;
}
SDB_VISIBLE int sdb_exists (Sdb* s, const char *key) {
char ch;
SdbKv *kv;
int klen = strlen (key);
ut32 pos, hash = sdb_hash (key, klen);
kv = (SdbKv*)ht_lookup (s->ht, hash);
if (kv) return (*kv->value)? 1: 0;
if (s->fd == -1)
return 0;
cdb_findstart (&s->db);
if (cdb_findnext (&s->db, hash, key, klen)) {
pos = cdb_datapos (&s->db);
cdb_read (&s->db, &ch, 1, pos);
return ch != 0;
}
return 0;
}
SDB_VISIBLE char *sdb_get (Sdb* s, const char *key, ut32 *cas) {
char *buf;
ut32 hash, pos, len, keylen;
SdbKv *kv;
ut64 now = 0LL;
if (cas) *cas = 0;
if (!s || !key) return NULL;
keylen = strlen (key)+1;
hash = sdb_hash (key, keylen);
/* search in memory */
kv = (SdbKv*)ht_lookup (s->ht, hash);
if (kv) {
if (*kv->value) {
if (kv->expire) {
if (!now) now = sdb_now ();
if (now > kv->expire) {
sdb_remove (s, key, 0);
return NULL;
}
}
if (cas) *cas = kv->cas;
return strdup (kv->value); // XXX too many mallocs
}
return NULL;
}
/* search in disk */
if (s->fd == -1)
return NULL;
cdb_findstart (&s->db);
if (!cdb_findnext (&s->db, hash, key, keylen))
return NULL;
len = cdb_datalen (&s->db);
if (len == 0)
return NULL;
pos = cdb_datapos (&s->db);
if (!(buf = malloc (len+1))) // XXX too many mallocs
return NULL;
cdb_read (&s->db, buf, len, pos);
buf[len] = 0;
return buf;
}
/* read data from a constant database file */
uint64_t readcontentsfromcdb (void *hint,bstring key,char *data,uint64_t dsize)
{
cdb_t *cdb = (cdb_t *)hint;
uint32_t vlen = 0, vpos = 0;
if (cdb_find(cdb,btocstr(key),blength(key)) > 0) {
vpos = cdb_datapos(cdb);
vlen = cdb_datalen(cdb);
cdb_read (cdb,data,(vlen < dsize) ? vlen : dsize,vpos);
uint64_t Kb = (vlen < 1024) ? vlen : vlen / 1024;
return (vlen < dsize) ? vlen : dsize;
}
return 0;
}
VALUE mCDB_Reader_each_for_key(VALUE self,VALUE key) {
struct cdb db;
VALUE value;
struct cdb_find find;
StringValue(key);
int fd = open_cdb_fd(self);
size_t vlen;
cdb_init(&db,fd);
cdb_findinit(&find,&db,RSTRING_PTR(key),RSTRING_LEN(key));
while(cdb_findnext(&find) > 0) {
vlen = cdb_datalen(&db);
value = rb_str_buf_new(vlen);
cdb_read(&db,RSTRING_PTR(value),vlen,cdb_datapos(&db));
rb_str_set_len(value,vlen);
rb_yield(value);
}
close(fd);
return Qnil;
}
static int find(char *d,int flagwild)
{
int r;
char ch;
struct tai cutoff;
char ttd[8];
char ttlstr[4];
char recordloc[2];
double newttl;
for (;;) {
r = cdb_findnext(&c,d,dns_domain_length(d));
if (r <= 0) return r;
dlen = cdb_datalen(&c);
if (dlen > sizeof data) return -1;
if (cdb_read(&c,data,dlen,cdb_datapos(&c)) == -1) return -1;
dpos = dns_packet_copy(data,dlen,0,type,2); if (!dpos) return -1;
dpos = dns_packet_copy(data,dlen,dpos,&ch,1); if (!dpos) return -1;
if ((ch == '=' + 1) || (ch == '*' + 1)) {
--ch;
dpos = dns_packet_copy(data,dlen,dpos,recordloc,2); if (!dpos) return -1;
if (byte_diff(recordloc,2,clientloc)) continue;
}
if (flagwild != (ch == '*')) continue;
dpos = dns_packet_copy(data,dlen,dpos,ttlstr,4); if (!dpos) return -1;
uint32_unpack_big(ttlstr,&ttl);
dpos = dns_packet_copy(data,dlen,dpos,ttd,8); if (!dpos) return -1;
if (byte_diff(ttd,8,"\0\0\0\0\0\0\0\0")) {
tai_unpack(ttd,&cutoff);
if (ttl == 0) {
if (tai_less(&cutoff,&now)) continue;
tai_sub(&cutoff,&cutoff,&now);
newttl = tai_approx(&cutoff);
if (newttl <= 2.0) newttl = 2.0;
if (newttl >= 3600.0) newttl = 3600.0;
ttl = newttl;
}
else
if (!tai_less(&cutoff,&now)) continue;
}
return 1;
}
}
main(int argc,char **argv)
{
char *key;
int r;
uint32 pos;
uint32 len;
unsigned long u = 0;
if (!*argv) die_usage();
if (!*++argv) die_usage();
key = *argv;
if (*++argv) {
scan_ulong(*argv,&u);
}
cdb_init(&c,0);
cdb_findstart(&c);
for (;;) {
r = cdb_findnext(&c,key,str_len(key));
if (r == -1) die_read();
if (!r) _exit(100);
if (!u) break;
--u;
}
pos = cdb_datapos(&c);
len = cdb_datalen(&c);
while (len > 0) {
r = sizeof buf;
if (r > len) r = len;
if (cdb_read(&c,buf,r,pos) == -1) die_read();
if (buffer_put(buffer_1small,buf,r) == -1) die_write();
pos += r;
len -= r;
}
if (buffer_flush(buffer_1small) == -1) die_write();
_exit(0);
}
int checks(char *key, char *buf)
{
struct cdb cdb;
struct cdb_find cdbf;
int fd;
char *data;
unsigned keylen = strlen(key), datalen, vpos;
if (((fd = open(DB, O_RDONLY)) == -1) ||
(cdb_init(&cdb, fd) != 0)) {
printf("Can't open database: %s\n", strerror(errno));
return (-1);
}
if (cdb_findinit(&cdbf, &cdb, key, keylen) <= 0) {
return (-1);
}
while (cdb_findnext(&cdbf) > 0) {
char *pattern, *subject;
int m;
vpos = cdb_datapos(&cdb);
datalen = cdb_datalen(&cdb);
data = malloc(datalen + 1);
cdb_read(&cdb, data, datalen, vpos);
data[datalen] = '\0';
pattern = data;
subject = buf;
m = match(pattern, subject);
printf("*** match %s ", m ? "TRUE " : "false");
printf("%s\n", data);
free(data);
}
cdb_free(&cdb);
close(fd);
return (0);
}
static long cdb_getval(struct _info *info, char *keyname)
{
unsigned keylen = strlen(keyname), vlen, vpos;
long nval;
char *val;
if (cdb_find(&info->cdb, keyname, keylen) > 0) {
vpos = cdb_datapos(&info->cdb);
vlen = cdb_datalen(&info->cdb);
val = malloc(vlen);
cdb_read(&info->cdb, val, vlen, vpos);
nval = atol(val);
free(val);
return (nval);
}
return (-1L);
}
SDB_VISIBLE const char *sdb_getc (Sdb* s, const char *key, ut32 *cas) {
ut32 hash, pos, len, keylen;
SdbKv *kv;
ut64 now = 0LL;
if (cas) *cas = 0;
if (!s||!key) return NULL;
keylen = strlen (key)+1;
hash = sdb_hash (key, keylen);
/* search in memory */
kv = (SdbKv*)ht_lookup (s->ht, hash);
if (kv) {
if (*kv->value) {
if (kv->expire) {
if (!now) now = sdb_now ();
if (now > kv->expire) {
sdb_remove (s, key, 0);
return NULL;
}
}
if (cas) *cas = kv->cas;
return kv->value;
}
return NULL;
}
/* search in disk */
if (s->fd == -1)
return NULL;
cdb_findstart (&s->db);
if (!cdb_findnext (&s->db, hash, key, keylen))
return NULL;
len = cdb_datalen (&s->db);
if (len == 0)
return NULL;
pos = cdb_datapos (&s->db);
return s->db.map+pos;
}
int OS_DBSearchKeyValue(ListRule *lrule, char *key)
{
int result=-1;
char *val;
unsigned vlen, vpos;
if (lrule->db!= NULL)
{
if(_OS_CDBOpen(lrule->db) == -1) return 0;
if(cdb_find(&lrule->db->cdb, key, strlen(key)) > 0 ) {
vpos = cdb_datapos(&lrule->db->cdb);
vlen = cdb_datalen(&lrule->db->cdb);
val = malloc(vlen);
cdb_read(&lrule->db->cdb, val, vlen, vpos);
result = OSMatch_Execute(val, vlen, lrule->matcher);
free(val);
return result;
} else {
return 0;
}
}
return 0;
}
static enum nss_status
__nss_cdb_dobyname(struct nss_cdb *dbp, const char *key, unsigned len,
void *result, char *buf, size_t bufl, int *errnop) {
int r;
if ((r = cdb_find(&dbp->cdb, key, len)) < 0)
return *errnop = errno, NSS_STATUS_UNAVAIL;
len = cdb_datalen(&dbp->cdb);
if (!r || len < 2)
return *errnop = ENOENT, NSS_STATUS_NOTFOUND;
if (len >= bufl)
return *errnop = ERANGE, NSS_STATUS_TRYAGAIN;
if (cdb_read(&dbp->cdb, buf, len, cdb_datapos(&dbp->cdb)) != 0)
return *errnop = errno, NSS_STATUS_UNAVAIL;
buf[len] = '\0';
if ((r = dbp->parsefn(result, buf, bufl)) < 0)
return *errnop = ENOENT, NSS_STATUS_NOTFOUND;
if (!r)
return *errnop = ERANGE, NSS_STATUS_TRYAGAIN;
return NSS_STATUS_SUCCESS;
}
static int dorule(void (*callback)(char *,unsigned int))
{
char *data;
unsigned int datalen;
switch(cdb_find(&c,rules_name.s,rules_name.len)) {
case -1: return -1;
case 0: return 0;
}
datalen = cdb_datalen(&c);
data = alloc(datalen);
if (!data) return -1;
if (cdb_read(&c,data,datalen,cdb_datapos(&c)) == -1) {
alloc_free(data);
return -1;
}
callback(data,datalen);
alloc_free(data);
return 1;
}
int respond(char *q,char qtype[2],char ip[4])
{
static struct tai cdb_valid = { 0 };
static int fd = -1;
struct tai one_second;
int r;
char key[6];
tai_now(&now);
if (tai_less(&cdb_valid, &now)) {
if (fd != -1) {
cdb_free(&c);
close(fd);
}
fd = open_read("data.cdb");
if (fd == -1) return 0;
cdb_init(&c,fd);
tai_uint(&one_second, 1);
tai_add(&cdb_valid, &now, &one_second);
}
byte_zero(clientloc,2);
key[0] = 0;
key[1] = '%';
byte_copy(key + 2,4,ip);
r = cdb_find(&c,key,6);
if (!r) r = cdb_find(&c,key,5);
if (!r) r = cdb_find(&c,key,4);
if (!r) r = cdb_find(&c,key,3);
if (!r) r = cdb_find(&c,key,2);
if (r == -1) return 0;
if (r && (cdb_datalen(&c) == 2))
if (cdb_read(&c,clientloc,2,cdb_datapos(&c)) == -1) return 0;
r = doit(q,qtype);
return r;
}
int ipsvd_check_cdbentry(stralloc *d, stralloc *m, char *ip, int *rc) {
switch(cdb_find(&c, m->s, m->len -1)) {
case -1: return(-1);
case 1:
dlen =cdb_datalen(&c);
if (! stralloc_ready(d, dlen)) return(-1);
if (cdb_read(&c, d->s, dlen, cdb_datapos(&c)) == -1) return(-1);
if (! dlen) return(-1);
switch(d->s[dlen -1]) {
case 'D':
*rc =IPSVD_DENY;
return(1);
case 'X':
d->s[dlen -1] =0; d->len =dlen;
*rc =IPSVD_EXEC;
return(1);
case 'I':
d->s[dlen -1] =0; d->len =dlen;
if ((*rc =ipsvd_instruct(d, m, ip)) == -1) return(-1);
return(1);
}
}
return(0);
}
int cdbb_read_nentry(struct cdbb *a, char *k, size_t ks, struct nentry *n)
{
int err, dlen;
unsigned char *buf;
array_catb(&n->k, k, ks);
err = cdb_find(a->r, (unsigned char *)k, ks);
if (err <= 0)
return err;
err = 0; /* num */
do {
dlen = cdb_datalen(a->r);
buf = alloca(dlen);
if (cdb_read(a->r, buf, dlen, cdb_datapos(a->r)) < 0)
return -2;
array_catb(&n->e, (char *)buf, dlen);
err++;
} while (cdb_findnext(a->r, (unsigned char *)k, ks) > 0);
return err;
}
static void
search_dictionaries(int out, Dlist *dic_list, char *rbuf)
{
Dlist_data *dd;
Hash *word_hash;
char word[SKKSERV_WORD_SIZE];
char result[SKKSERV_RESULT_SIZE];
char tmpresult[SKKSERV_RESULT_SIZE];
char *end;
int i, p, r, len, rlen, ncandidates;
if ((end = strchr(rbuf + 1, ' ')) == NULL) {
rbuf[0] = SKKSERV_S_ERROR;
write(out, rbuf, strlen(rbuf));
return;
}
len = end - (rbuf + 1);
memcpy(word, rbuf + 1, len);
word[len] = '\0';
word_hash = hash_create(HASH_SIZE);
rlen = 1;
ncandidates = 0;
result[0] = SKKSERV_S_FOUND;
dlist_iter(dic_list, dd) {
Dictionary *dic = dlist_data(dd);
pthread_mutex_lock(&dic->mutex);
__cdb_findstart(dic);
if ((r = __cdb_findnext(dic, word, len)) == -1) {
err_message_fnc("cdb_findnext() failed.\n");
if (!ncandidates) {
rbuf[0] = SKKSERV_S_ERROR;
write(out, rbuf, strlen(rbuf));
}
pthread_mutex_unlock(&dic->mutex);
hash_destroy(word_hash);
return;
}
debug_message_fnc("word %s, len %d, r = %d\n", word, len, r);
if (r) {
int dpos = cdb_datapos(&dic->cdb);
int dlen = cdb_datalen(&dic->cdb);
debug_message_fnc("%s found, r = %d, dpos = %d, dlen = %d.\n", word, r, dpos, dlen);
if (rlen + dlen + 2 > SKKSERV_RESULT_SIZE) {
err_message_fnc("Truncated: %s\n", word);
r = SKKSERV_RESULT_SIZE - rlen - 2;
} else {
r = dlen;
}
debug_message_fnc("read %d bytes\n", r);
if (cdb_read(&dic->cdb, tmpresult, r, dpos) == -1) {
if (!ncandidates) {
err_message_fnc("cdb_read() failed.\n");
rbuf[0] = SKKSERV_S_ERROR;
write(out, rbuf, strlen(rbuf));
pthread_mutex_unlock(&dic->mutex);
hash_destroy(word_hash);
return;
} else {
result[rlen] = '\0';
continue;
}
}
/* Merge */
p = 0;
i = 1;
while (i < r) {
if (tmpresult[i] == '/') {
if (i - p - 1 > 0 &&
hash_define_value(word_hash, tmpresult + p + 1, i - p - 1, (void *)1) == 1) {
memcpy(result + rlen, tmpresult + p, i - p);
rlen += i - p;
ncandidates++;
}
p = i;
}
i++;
}
}
pthread_mutex_unlock(&dic->mutex);
}
/* main program */
int main(int argc, char *argv[]) {
char combuf[BUFSIZE], data[DATASIZE];
char *pbuf, *key, *p;
struct cdb diccdb;
int dicfd, ex, length;
unsigned int keylen, datalen;
/* open dictionary cdb file */
if ((dicfd = open(JISYO_FILE, O_RDONLY, S_IRUSR)) < 0) {
exit(EX_CONFIG);
}
/* init cdb */
cdb_init(&diccdb, dicfd);
/* To exit, set ex to non-zero */
ex = 0;
/* command loop */
while (!ex) {
/* Read from stdin */
length = read(STDIN, &combuf[0], BUFSIZE - 1);
if (length < 0) {
exit(EX_NOINPUT);
} else if (length == 0) {
/* EOF detected */
/* exit from the while loop */
ex = 1;
break;
}
/* parse request code */
switch (combuf[0]) {
case CLIENT_END:
/* End of conversion requested*/
/* exit from the while loop */
ex = 1;
break;
case CLIENT_VERSION:
if (write(STDOUT, VERSION, sizeof(VERSION) - 1) < 0) {
exit(EX_IOERR);
}
break;
case CLIENT_HOST:
if (write(STDOUT, DUMMYHOSTNAME, sizeof(DUMMYHOSTNAME) - 1) < 0) {
exit(EX_IOERR);
}
break;
case CLIENT_REQUEST:
/* get size of key */
key = &combuf[1];
for (pbuf = &combuf[1]; *pbuf != ' ' && pbuf != &combuf[length - 1];
pbuf++) {
}
keylen = pbuf - &combuf[1];
if (keylen <= 0) { /* invalid keysize */
exit(EX_PROTOCOL);
}
/* lookup the cdb database */
switch (cdb_find(&diccdb, key, keylen)) {
case -1: /* fatal error on cdb_find() */
exit(EX_SOFTWARE);
break;
case 1: /* found */
if ((datalen = cdb_datalen(&diccdb)) >= DATASIZE - 2) {
exit(EX_PROTOCOL);
}
/* generate the answer string */
p = data;
*p++ = SERVER_FOUND;
if (cdb_read(&diccdb, p, datalen, cdb_datapos(&diccdb)) < 0) {
exit(EX_SOFTWARE);
}
p += datalen;
*p = '\n';
/* sending found code and the result data string with LF */
if (write(STDOUT, data, datalen + 2) < 0) {
exit(EX_IOERR);
}
break;
case 0: /* NOT found */
/* generate the answer string */
combuf[0] = SERVER_NOT_FOUND;
*pbuf = '\n';
/* sending error code and the key string with LF */
/* this action is required by skkinput */
if (write(STDOUT, combuf, keylen + 2) < 0) {
exit(EX_IOERR);
}
break;
default: /* unknown cdb return value */
exit(EX_SOFTWARE);
break;
}
break;
/* end CLIENT_REQUEST switch clause */
/* unknown request code */
default:
exit(EX_PROTOCOL);
}
/* end request code parsing */
}
/* end while loop */
/* close dictionary db file */
cdb_free(&diccdb);
if (close(dicfd) != 0) {
exit(EX_IOERR);
}
/* normal exit, finally */
exit(EX_OK);
}