/**
* Generic response line parser.
*
* @param[in] connp
* @return HTP status
*/
htp_status_t htp_parse_response_line_generic(htp_connp_t *connp) {
htp_tx_t *tx = connp->out_tx;
unsigned char *data = bstr_ptr(tx->response_line);
size_t len = bstr_len(tx->response_line);
size_t pos = 0;
tx->response_protocol = NULL;
tx->response_protocol_number = HTP_PROTOCOL_INVALID;
tx->response_status = NULL;
tx->response_status_number = HTP_STATUS_INVALID;
tx->response_message = NULL;
// Ignore whitespace at the beginning of the line.
while ((pos < len) && (htp_is_space(data[pos]))) pos++;
size_t start = pos;
// Find the end of the protocol string.
while ((pos < len) && (!htp_is_space(data[pos]))) pos++;
if (pos - start == 0) return HTP_OK;
tx->response_protocol = bstr_dup_mem(data + start, pos - start);
if (tx->response_protocol == NULL) return HTP_ERROR;
tx->response_protocol_number = htp_parse_protocol(tx->response_protocol);
#ifdef HTP_DEBUG
fprint_raw_data(stderr, "Response protocol", bstr_ptr(tx->response_protocol), bstr_len(tx->response_protocol));
fprintf(stderr, "Response protocol number: %d\n", tx->response_protocol_number);
#endif
// Ignore whitespace after the response protocol.
while ((pos < len) && (htp_is_space(data[pos]))) pos++;
if (pos == len) return HTP_OK;
start = pos;
// Find the next whitespace character.
while ((pos < len) && (!htp_is_space(data[pos]))) pos++;
if (pos - start == 0) return HTP_OK;
tx->response_status = bstr_dup_mem(data + start, pos - start);
if (tx->response_status == NULL) return HTP_ERROR;
tx->response_status_number = htp_parse_status(tx->response_status);
#ifdef HTP_DEBUG
fprint_raw_data(stderr, "Response status (as text)", bstr_ptr(tx->response_status), bstr_len(tx->response_status));
fprintf(stderr, "Response status number: %d\n", tx->response_status_number);
#endif
// Ignore whitespace that follows the status code.
while ((pos < len) && (isspace(data[pos]))) pos++;
if (pos == len) return HTP_OK;
// Assume the message stretches until the end of the line.
tx->response_message = bstr_dup_mem(data + pos, len - pos);
if (tx->response_message == NULL) return HTP_ERROR;
#ifdef HTP_DEBUG
fprint_raw_data(stderr, "Response status message", bstr_ptr(tx->response_message), bstr_len(tx->response_message));
#endif
return HTP_OK;
}
/**
* Generic response line parser.
*
* @param[in] connp
* @return HTP status
*/
int htp_parse_response_line_generic(htp_connp_t *connp) {
htp_tx_t *tx = connp->out_tx;
unsigned char *data = (unsigned char *) bstr_ptr(tx->response_line);
size_t len = bstr_len(tx->response_line);
size_t pos = 0;
// Ignore whitespace at the beginning of the line
while ((pos < len) && (htp_is_space(data[pos]))) {
pos++;
}
size_t start = pos;
// Find the end of the protocol string
while ((pos < len) && (!htp_is_space(data[pos]))) {
pos++;
}
tx->response_protocol = bstr_dup_mem(data + start, pos - start);
if (tx->response_protocol == NULL) {
return HTP_ERROR;
}
tx->response_protocol_number = htp_parse_protocol(tx->response_protocol);
#ifdef HTP_DEBUG
fprint_raw_data(stderr, __FUNCTION__, (unsigned char *) bstr_ptr(tx->response_protocol), bstr_len(tx->response_protocol));
#endif
// Ignore whitespace after response protocol
// TODO Why use both isspace (below) and htp_is_space (above)?
while ((pos < len) && (isspace(data[pos]))) {
pos++;
}
start = pos;
// Find the next whitespace character
while ((pos < len) && (!htp_is_space(data[pos]))) {
pos++;
}
tx->response_status = bstr_dup_mem(data + start, pos - start);
if (tx->response_status == NULL) {
return HTP_ERROR;
}
tx->response_status_number = htp_parse_status(tx->response_status);
#ifdef HTP_DEBUG
fprint_raw_data(stderr, __FUNCTION__, (unsigned char *) bstr_ptr(tx->response_status), bstr_len(tx->response_status));
#endif
// Ignore whitespace that follows
while ((pos < len) && (isspace(data[pos]))) {
pos++;
}
tx->response_message = bstr_dup_mem(data + pos, len - pos);
if (tx->response_message == NULL) {
return HTP_ERROR;
}
#ifdef HTP_DEBUG
fprint_raw_data(stderr, __FUNCTION__, (unsigned char *) bstr_ptr(tx->response_message), bstr_len(tx->response_message));
#endif
return HTP_OK;
}
