int zmq::mechanism_t::parse_metadata (const unsigned char *ptr_,
size_t length_, bool zap_flag)
{
size_t bytes_left = length_;
while (bytes_left > 1) {
const size_t name_length = static_cast <size_t> (*ptr_);
ptr_ += 1;
bytes_left -= 1;
if (bytes_left < name_length)
break;
const std::string name = std::string ((char *) ptr_, name_length);
ptr_ += name_length;
bytes_left -= name_length;
if (bytes_left < 4)
break;
const size_t value_length = static_cast <size_t> (get_uint32 (ptr_));
ptr_ += 4;
bytes_left -= 4;
if (bytes_left < value_length)
break;
const uint8_t *value = ptr_;
ptr_ += value_length;
bytes_left -= value_length;
if (name == "Identity" && options.recv_identity)
set_peer_identity (value, value_length);
else
if (name == "Socket-Type") {
const std::string socket_type ((char *) value, value_length);
if (!check_socket_type (socket_type)) {
errno = EINVAL;
return -1;
}
}
else {
const int rc = property (name, value, value_length);
if (rc == -1)
return -1;
}
if (zap_flag)
zap_properties.insert (
metadata_t::dict_t::value_type (
name, std::string ((char *) value, value_length)));
else
zmtp_properties.insert (
metadata_t::dict_t::value_type (
name, std::string ((char *) value, value_length)));
}
if (bytes_left > 0) {
errno = EPROTO;
return -1;
}
return 0;
}
int zmq::mechanism_t::parse_metadata (const unsigned char *ptr_,
size_t length_,
bool zap_flag)
{
size_t bytes_left = length_;
while (bytes_left > 1) {
const size_t name_length = static_cast <size_t> (*ptr_);
ptr_ += 1;
bytes_left -= 1;
if (bytes_left < name_length)
break;
const std::string name = std::string ((char *) ptr_, name_length);
ptr_ += name_length;
bytes_left -= name_length;
if (bytes_left < 4)
break;
const size_t value_length = static_cast <size_t> (get_uint32 (ptr_));
ptr_ += 4;
bytes_left -= 4;
if (bytes_left < value_length)
break;
const uint8_t *value = ptr_;
ptr_ += value_length;
bytes_left -= value_length;
if (name == ZMTP_PROPERTY_IDENTITY && options.recv_routing_id)
set_peer_routing_id (value, value_length);
else
if (name == ZMTP_PROPERTY_SOCKET_TYPE) {
const std::string socket_type ((char *) value, value_length);
if (!check_socket_type (socket_type)) {
errno = EINVAL;
return -1;
}
}
else {
const int rc = property (name, value, value_length);
if (rc == -1)
return -1;
}
if (zap_flag)
zap_properties.ZMQ_MAP_INSERT_OR_EMPLACE (
name, std::string ((char *) value, value_length));
else
zmtp_properties.ZMQ_MAP_INSERT_OR_EMPLACE (
name, std::string ((char *) value, value_length));
}
if (bytes_left > 0) {
errno = EPROTO;
return -1;
}
return 0;
}
