int
_servent_open(struct servent_data *sd)
{
if (sd->flags & (_SV_CDB | _SV_PLAINFILE)) {
sd->flags |= _SV_FIRST;
return 0;
}
free(sd->line);
sd->line = NULL;
free(sd->cdb_buf);
sd->cdb_buf = NULL;
sd->cdb_buf_len = 0;
free(sd->aliases);
sd->aliases = NULL;
sd->maxaliases = 0;
sd->flags |= _SV_FIRST;
sd->cdb = cdbr_open(_PATH_SERVICES_CDB, CDBR_DEFAULT);
if (sd->cdb != NULL) {
sd->flags |= _SV_CDB;
return 0;
}
sd->plainfile = fopen(_PATH_SERVICES, "r");
if (sd->plainfile != NULL) {
sd->flags |= _SV_PLAINFILE;
return 0;
}
return -1;
}
static int
_ti_dbgetterm(TERMINAL *term, const char *path, const char *name, int flags)
{
struct cdbr *db;
const void *data;
char *db_name;
const uint8_t *data8;
size_t len, klen;
int r;
if (asprintf(&db_name, "%s.cdb", path) < 0)
return -1;
db = cdbr_open(db_name, CDBR_DEFAULT);
free(db_name);
if (db == NULL)
return -1;
klen = strlen(name) + 1;
if (cdbr_find(db, name, klen, &data, &len) == -1)
goto fail;
data8 = data;
if (len == 0)
goto fail;
/* Check for alias first, fall through to processing normal entries. */
if (data8[0] == 2) {
if (klen + 7 > len || le16dec(data8 + 5) != klen)
goto fail;
if (memcmp(data8 + 7, name, klen))
goto fail;
if (cdbr_get(db, le32dec(data8 + 1), &data, &len))
goto fail;
data8 = data;
if (data8[0] != 1)
goto fail;
} else if (data8[0] != 1)
goto fail;
else if (klen + 3 >= len || le16dec(data8 + 1) != klen)
goto fail;
else if (memcmp(data8 + 3, name, klen))
goto fail;
snprintf(database, sizeof database, "%s", path);
_ti_database = database;
r = _ti_readterm(term, data, len, flags);
cdbr_close(db);
return r;
fail:
cdbr_close(db);
return 0;
}
