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DEFINITIONS
This source file includes following definitions.
- long_res_header_for_sc
- sc_for_req_header
- sc_for_req_method_by_id
- ajp_marshal_into_msgb
- ajp_unmarshal_response
- ajp_send_header
- ajp_read_header
- ajp_parse_type
- ajp_parse_header
- ajp_parse_data
- ajp_alloc_data_msg
- ajp_send_data_msg
/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "ajp_header.h"
#include "ajp.h"
static const char *response_trans_headers[] = {
"Content-Type",
"Content-Language",
"Content-Length",
"Date",
"Last-Modified",
"Location",
"Set-Cookie",
"Set-Cookie2",
"Servlet-Engine",
"Status",
"WWW-Authenticate"
};
static const char *long_res_header_for_sc(int sc)
{
const char *rc = NULL;
sc = sc & 0X00FF;
if(sc <= SC_RES_HEADERS_NUM && sc > 0) {
rc = response_trans_headers[sc - 1];
}
return rc;
}
#define UNKNOWN_METHOD (-1)
static int sc_for_req_header(const char *header_name)
{
char header[16];
apr_size_t len = strlen(header_name);
const char *p = header_name;
int i = 0;
/* ACCEPT-LANGUAGE is the longest header
* that is of interest.
*/
if (len < 4 || len > 15)
return UNKNOWN_METHOD;
while (*p)
header[i++] = apr_toupper(*p++);
header[i] = '\0';
p = &header[1];
switch (header[0]) {
case 'A':
if (memcmp(p, "CCEPT", 5) == 0) {
if (!header[6])
return SC_ACCEPT;
else if (header[6] == '-') {
p += 6;
if (strcmp(p, "CHARSET") == 0)
return SC_ACCEPT_CHARSET;
else if (strcmp(p, "ENCODING") == 0)
return SC_ACCEPT_ENCODING;
else if (strcmp(p, "LANGUAGE") == 0)
return SC_ACCEPT_LANGUAGE;
else
return UNKNOWN_METHOD;
}
else
return UNKNOWN_METHOD;
}
else if (strcmp(p, "UTHORIZATION") == 0)
return SC_AUTHORIZATION;
else
return UNKNOWN_METHOD;
break;
case 'C':
if(strcmp(p, "OOKIE2") == 0)
return SC_COOKIE2;
else if (strcmp(p, "OOKIE") == 0)
return SC_COOKIE;
else if(strcmp(p, "ONNECTION") == 0)
return SC_CONNECTION;
else if(strcmp(p, "ONTENT-TYPE") == 0)
return SC_CONTENT_TYPE;
else if(strcmp(p, "ONTENT-LENGTH") == 0)
return SC_CONTENT_LENGTH;
else
return UNKNOWN_METHOD;
break;
case 'H':
if(strcmp(p, "OST") == 0)
return SC_HOST;
else
return UNKNOWN_METHOD;
break;
case 'P':
if(strcmp(p, "RAGMA") == 0)
return SC_PRAGMA;
else
return UNKNOWN_METHOD;
break;
case 'R':
if(strcmp(p, "EFERER") == 0)
return SC_REFERER;
else
return UNKNOWN_METHOD;
break;
case 'U':
if(strcmp(p, "SER-AGENT") == 0)
return SC_USER_AGENT;
else
return UNKNOWN_METHOD;
break;
default:
return UNKNOWN_METHOD;
}
/* NOTREACHED */
}
/* Apache method number to SC methods transform table */
static const unsigned char sc_for_req_method_table[] = {
SC_M_GET,
SC_M_PUT,
SC_M_POST,
SC_M_DELETE,
0, /* M_DELETE */
SC_M_OPTIONS,
SC_M_TRACE,
0, /* M_PATCH */
SC_M_PROPFIND,
SC_M_PROPPATCH,
SC_M_MKCOL,
SC_M_COPY,
SC_M_MOVE,
SC_M_LOCK,
SC_M_UNLOCK,
SC_M_VERSION_CONTROL,
SC_M_CHECKOUT,
SC_M_UNCHECKOUT,
SC_M_CHECKIN,
SC_M_UPDATE,
SC_M_LABEL,
SC_M_REPORT,
SC_M_MKWORKSPACE,
SC_M_MKACTIVITY,
SC_M_BASELINE_CONTROL,
SC_M_MERGE,
0 /* M_INVALID */
};
static int sc_for_req_method_by_id(request_rec *r)
{
int method_id = r->method_number;
if (method_id < 0 || method_id > M_INVALID) {
return UNKNOWN_METHOD;
}
else if (r->header_only) {
return SC_M_HEAD;
}
else {
return sc_for_req_method_table[method_id] ?
sc_for_req_method_table[method_id] : UNKNOWN_METHOD;
}
}
/*
* Message structure
*
*
AJPV13_REQUEST/AJPV14_REQUEST=
request_prefix (1) (byte)
method (byte)
protocol (string)
req_uri (string)
remote_addr (string)
remote_host (string)
server_name (string)
server_port (short)
is_ssl (boolean)
num_headers (short)
num_headers*(req_header_name header_value)
?context (byte)(string)
?servlet_path (byte)(string)
?remote_user (byte)(string)
?auth_type (byte)(string)
?query_string (byte)(string)
?jvm_route (byte)(string)
?ssl_cert (byte)(string)
?ssl_cipher (byte)(string)
?ssl_session (byte)(string)
?ssl_key_size (byte)(int) via JkOptions +ForwardKeySize
request_terminator (byte)
?body content_length*(var binary)
*/
static apr_status_t ajp_marshal_into_msgb(ajp_msg_t *msg,
request_rec *r,
apr_uri_t *uri)
{
int method;
apr_uint32_t i, num_headers = 0;
apr_byte_t is_ssl;
char *remote_host;
const char *session_route, *envvar;
const apr_array_header_t *arr = apr_table_elts(r->subprocess_env);
const apr_table_entry_t *elts = (const apr_table_entry_t *)arr->elts;
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"Into ajp_marshal_into_msgb");
if ((method = sc_for_req_method_by_id(r)) == UNKNOWN_METHOD) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_marshal_into_msgb - No such method %s",
r->method);
return AJP_EBAD_METHOD;
}
is_ssl = (apr_byte_t) ap_proxy_conn_is_https(r->connection);
if (r->headers_in && apr_table_elts(r->headers_in)) {
const apr_array_header_t *t = apr_table_elts(r->headers_in);
num_headers = t->nelts;
}
remote_host = (char *)ap_get_remote_host(r->connection, r->per_dir_config, REMOTE_HOST, NULL);
ajp_msg_reset(msg);
if (ajp_msg_append_uint8(msg, CMD_AJP13_FORWARD_REQUEST) ||
ajp_msg_append_uint8(msg, method) ||
ajp_msg_append_string(msg, r->protocol) ||
ajp_msg_append_string(msg, uri->path) ||
ajp_msg_append_string(msg, r->connection->remote_ip) ||
ajp_msg_append_string(msg, remote_host) ||
ajp_msg_append_string(msg, ap_get_server_name(r)) ||
ajp_msg_append_uint16(msg, (apr_uint16_t)r->connection->local_addr->port) ||
ajp_msg_append_uint8(msg, is_ssl) ||
ajp_msg_append_uint16(msg, (apr_uint16_t) num_headers)) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_marshal_into_msgb: "
"Error appending the message begining");
return APR_EGENERAL;
}
for (i = 0 ; i < num_headers ; i++) {
int sc;
const apr_array_header_t *t = apr_table_elts(r->headers_in);
const apr_table_entry_t *elts = (apr_table_entry_t *)t->elts;
if ((sc = sc_for_req_header(elts[i].key)) != UNKNOWN_METHOD) {
if (ajp_msg_append_uint16(msg, (apr_uint16_t)sc)) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_marshal_into_msgb: "
"Error appending the header name");
return AJP_EOVERFLOW;
}
}
else {
if (ajp_msg_append_string(msg, elts[i].key)) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_marshal_into_msgb: "
"Error appending the header name");
return AJP_EOVERFLOW;
}
}
if (ajp_msg_append_string(msg, elts[i].val)) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_marshal_into_msgb: "
"Error appending the header value");
return AJP_EOVERFLOW;
}
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"ajp_marshal_into_msgb: Header[%d] [%s] = [%s]",
i, elts[i].key, elts[i].val);
}
/* XXXX need to figure out how to do this
if (s->secret) {
if (ajp_msg_append_uint8(msg, SC_A_SECRET) ||
ajp_msg_append_string(msg, s->secret)) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"Error ajp_marshal_into_msgb - "
"Error appending secret");
return APR_EGENERAL;
}
}
*/
if (r->user) {
if (ajp_msg_append_uint8(msg, SC_A_REMOTE_USER) ||
ajp_msg_append_string(msg, r->user)) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_marshal_into_msgb: "
"Error appending the remote user");
return AJP_EOVERFLOW;
}
}
if (r->ap_auth_type) {
if (ajp_msg_append_uint8(msg, SC_A_AUTH_TYPE) ||
ajp_msg_append_string(msg, r->ap_auth_type)) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_marshal_into_msgb: "
"Error appending the auth type");
return AJP_EOVERFLOW;
}
}
/* XXXX ebcdic (args converted?) */
if (uri->query) {
if (ajp_msg_append_uint8(msg, SC_A_QUERY_STRING) ||
ajp_msg_append_string(msg, uri->query)) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_marshal_into_msgb: "
"Error appending the query string");
return AJP_EOVERFLOW;
}
}
if ((session_route = apr_table_get(r->notes, "session-route"))) {
if (ajp_msg_append_uint8(msg, SC_A_JVM_ROUTE) ||
ajp_msg_append_string(msg, session_route)) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_marshal_into_msgb: "
"Error appending the jvm route");
return AJP_EOVERFLOW;
}
}
/* XXX: Is the subprocess_env a right place?
* <Location /examples>
* ProxyPass ajp://remote:8009/servlets-examples
* SetEnv SSL_SESSION_ID CUSTOM_SSL_SESSION_ID
* </Location>
*/
/*
* Only lookup SSL variables if we are currently running HTTPS.
* Furthermore ensure that only variables get set in the AJP message
* that are not NULL and not empty.
*/
if (is_ssl) {
if ((envvar = ap_proxy_ssl_val(r->pool, r->server, r->connection, r,
AJP13_SSL_CLIENT_CERT_INDICATOR))
&& envvar[0]) {
if (ajp_msg_append_uint8(msg, SC_A_SSL_CERT)
|| ajp_msg_append_string(msg, envvar)) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_marshal_into_msgb: "
"Error appending the SSL certificates");
return AJP_EOVERFLOW;
}
}
if ((envvar = ap_proxy_ssl_val(r->pool, r->server, r->connection, r,
AJP13_SSL_CIPHER_INDICATOR))
&& envvar[0]) {
if (ajp_msg_append_uint8(msg, SC_A_SSL_CIPHER)
|| ajp_msg_append_string(msg, envvar)) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_marshal_into_msgb: "
"Error appending the SSL ciphers");
return AJP_EOVERFLOW;
}
}
if ((envvar = ap_proxy_ssl_val(r->pool, r->server, r->connection, r,
AJP13_SSL_SESSION_INDICATOR))
&& envvar[0]) {
if (ajp_msg_append_uint8(msg, SC_A_SSL_SESSION)
|| ajp_msg_append_string(msg, envvar)) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_marshal_into_msgb: "
"Error appending the SSL session");
return AJP_EOVERFLOW;
}
}
/* ssl_key_size is required by Servlet 2.3 API */
if ((envvar = ap_proxy_ssl_val(r->pool, r->server, r->connection, r,
AJP13_SSL_KEY_SIZE_INDICATOR))
&& envvar[0]) {
if (ajp_msg_append_uint8(msg, SC_A_SSL_KEY_SIZE)
|| ajp_msg_append_uint16(msg, (unsigned short) atoi(envvar))) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"Error ajp_marshal_into_msgb - "
"Error appending the SSL key size");
return APR_EGENERAL;
}
}
}
/* Use the environment vars prefixed with AJP_
* and pass it to the header striping that prefix.
*/
for (i = 0; i < (apr_uint32_t)arr->nelts; i++) {
if (!strncmp(elts[i].key, "AJP_", 4)) {
if (ajp_msg_append_uint8(msg, SC_A_REQ_ATTRIBUTE) ||
ajp_msg_append_string(msg, elts[i].key + 4) ||
ajp_msg_append_string(msg, elts[i].val)) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_marshal_into_msgb: "
"Error appending attribute %s=%s",
elts[i].key, elts[i].val);
return AJP_EOVERFLOW;
}
}
}
if (ajp_msg_append_uint8(msg, SC_A_ARE_DONE)) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_marshal_into_msgb: "
"Error appending the message end");
return AJP_EOVERFLOW;
}
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"ajp_marshal_into_msgb: Done");
return APR_SUCCESS;
}
/*
AJPV13_RESPONSE/AJPV14_RESPONSE:=
response_prefix (2)
status (short)
status_msg (short)
num_headers (short)
num_headers*(res_header_name header_value)
*body_chunk
terminator boolean <! -- recycle connection or not -->
req_header_name :=
sc_req_header_name | (string)
res_header_name :=
sc_res_header_name | (string)
header_value :=
(string)
body_chunk :=
length (short)
body length*(var binary)
*/
static apr_status_t ajp_unmarshal_response(ajp_msg_t *msg,
request_rec *r,
proxy_dir_conf *dconf)
{
apr_uint16_t status;
apr_status_t rc;
const char *ptr;
apr_uint16_t num_headers;
int i;
rc = ajp_msg_get_uint16(msg, &status);
if (rc != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_unmarshal_response: Null status");
return rc;
}
r->status = status;
rc = ajp_msg_get_string(msg, &ptr);
if (rc == APR_SUCCESS) {
#if defined(AS400) || defined(_OSD_POSIX) /* EBCDIC platforms */
ptr = apr_pstrdup(r->pool, ptr);
ap_xlate_proto_from_ascii(ptr, strlen(ptr));
#endif
r->status_line = apr_psprintf(r->pool, "%d %s", status, ptr);
} else {
r->status_line = NULL;
}
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"ajp_unmarshal_response: status = %d", status);
rc = ajp_msg_get_uint16(msg, &num_headers);
if (rc == APR_SUCCESS) {
r->headers_out = apr_table_make(r->pool, num_headers);
} else {
r->headers_out = NULL;
num_headers = 0;
}
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"ajp_unmarshal_response: Number of headers is = %d",
num_headers);
for(i = 0 ; i < (int) num_headers ; i++) {
apr_uint16_t name;
const char *stringname;
const char *value;
rc = ajp_msg_peek_uint16(msg, &name);
if (rc != APR_SUCCESS) {
return rc;
}
if ((name & 0XFF00) == 0XA000) {
ajp_msg_get_uint16(msg, &name);
stringname = long_res_header_for_sc(name);
if (stringname == NULL) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_unmarshal_response: "
"No such sc (%08x)",
name);
return AJP_EBAD_HEADER;
}
} else {
name = 0;
rc = ajp_msg_get_string(msg, &stringname);
if (rc != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_unmarshal_response: "
"Null header name");
return rc;
}
#if defined(AS400) || defined(_OSD_POSIX)
ap_xlate_proto_from_ascii(stringname, strlen(stringname));
#endif
}
rc = ajp_msg_get_string(msg, &value);
if (rc != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_unmarshal_response: "
"Null header value");
return rc;
}
/* Set-Cookie need additional processing */
if (!strcasecmp(stringname, "Set-Cookie")) {
value = ap_proxy_cookie_reverse_map(r, dconf, value);
}
/* Location, Content-Location, URI and Destination need additional
* processing */
else if (!strcasecmp(stringname, "Location")
|| !strcasecmp(stringname, "Content-Location")
|| !strcasecmp(stringname, "URI")
|| !strcasecmp(stringname, "Destination"))
{
value = ap_proxy_location_reverse_map(r, dconf, value);
}
#if defined(AS400) || defined(_OSD_POSIX)
ap_xlate_proto_from_ascii(value, strlen(value));
#endif
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"ajp_unmarshal_response: Header[%d] [%s] = [%s]",
i, stringname, value);
apr_table_add(r->headers_out, stringname, value);
/* Content-type needs an additional handling */
if (strcasecmp(stringname, "Content-Type") == 0) {
/* add corresponding filter */
ap_set_content_type(r, apr_pstrdup(r->pool, value));
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"ajp_unmarshal_response: ap_set_content_type done");
}
}
return APR_SUCCESS;
}
/*
* Build the ajp header message and send it
*/
apr_status_t ajp_send_header(apr_socket_t *sock,
request_rec *r,
apr_size_t buffsize,
apr_uri_t *uri)
{
ajp_msg_t *msg;
apr_status_t rc;
rc = ajp_msg_create(r->pool, buffsize, &msg);
if (rc != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_send_header: ajp_msg_create failed");
return rc;
}
rc = ajp_marshal_into_msgb(msg, r, uri);
if (rc != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_send_header: ajp_marshal_into_msgb failed");
return rc;
}
rc = ajp_ilink_send(sock, msg);
if (rc != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_send_header: ajp_ilink_send failed");
return rc;
}
return APR_SUCCESS;
}
/*
* Read the ajp message and return the type of the message.
*/
apr_status_t ajp_read_header(apr_socket_t *sock,
request_rec *r,
apr_size_t buffsize,
ajp_msg_t **msg)
{
apr_byte_t result;
apr_status_t rc;
if (*msg) {
rc = ajp_msg_reuse(*msg);
if (rc != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_read_header: ajp_msg_reuse failed");
return rc;
}
}
else {
rc = ajp_msg_create(r->pool, buffsize, msg);
if (rc != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_read_header: ajp_msg_create failed");
return rc;
}
}
ajp_msg_reset(*msg);
rc = ajp_ilink_receive(sock, *msg);
if (rc != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_read_header: ajp_ilink_receive failed");
return rc;
}
rc = ajp_msg_peek_uint8(*msg, &result);
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"ajp_read_header: ajp_ilink_received %02x", result);
return APR_SUCCESS;
}
/* parse the msg to read the type */
int ajp_parse_type(request_rec *r, ajp_msg_t *msg)
{
apr_byte_t result;
ajp_msg_peek_uint8(msg, &result);
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"ajp_parse_type: got %02x", result);
return (int) result;
}
/* parse the header */
apr_status_t ajp_parse_header(request_rec *r, proxy_dir_conf *conf,
ajp_msg_t *msg)
{
apr_byte_t result;
apr_status_t rc;
rc = ajp_msg_get_uint8(msg, &result);
if (rc != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_parse_headers: ajp_msg_get_byte failed");
return rc;
}
if (result != CMD_AJP13_SEND_HEADERS) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_parse_headers: wrong type %02x expecting 0x04", result);
return AJP_EBAD_HEADER;
}
return ajp_unmarshal_response(msg, r, conf);
}
/* parse the body and return data address and length */
apr_status_t ajp_parse_data(request_rec *r, ajp_msg_t *msg,
apr_uint16_t *len, char **ptr)
{
apr_byte_t result;
apr_status_t rc;
apr_uint16_t expected_len;
rc = ajp_msg_get_uint8(msg, &result);
if (rc != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_parse_data: ajp_msg_get_byte failed");
return rc;
}
if (result != CMD_AJP13_SEND_BODY_CHUNK) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_parse_data: wrong type %02x expecting 0x03", result);
return AJP_EBAD_HEADER;
}
rc = ajp_msg_get_uint16(msg, len);
if (rc != APR_SUCCESS) {
return rc;
}
/*
* msg->len contains the complete length of the message including all
* headers. So the expected length for a CMD_AJP13_SEND_BODY_CHUNK is
* msg->len minus the sum of
* AJP_HEADER_LEN : The length of the header to every AJP message.
* AJP_HEADER_SZ_LEN : The header giving the size of the chunk.
* 1 : The CMD_AJP13_SEND_BODY_CHUNK indicator byte (0x03).
* 1 : The last byte of this message always seems to be
* 0x00 and is not part of the chunk.
*/
expected_len = msg->len - (AJP_HEADER_LEN + AJP_HEADER_SZ_LEN + 1 + 1);
if (*len != expected_len) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"ajp_parse_data: Wrong chunk length. Length of chunk is %i,"
" expected length is %i.", *len, expected_len);
return AJP_EBAD_HEADER;
}
*ptr = (char *)&(msg->buf[msg->pos]);
return APR_SUCCESS;
}
/*
* Allocate a msg to send data
*/
apr_status_t ajp_alloc_data_msg(apr_pool_t *pool, char **ptr, apr_size_t *len,
ajp_msg_t **msg)
{
apr_status_t rc;
if ((rc = ajp_msg_create(pool, *len, msg)) != APR_SUCCESS)
return rc;
ajp_msg_reset(*msg);
*ptr = (char *)&((*msg)->buf[6]);
*len = *len - 6;
return APR_SUCCESS;
}
/*
* Send the data message
*/
apr_status_t ajp_send_data_msg(apr_socket_t *sock,
ajp_msg_t *msg, apr_size_t len)
{
msg->buf[4] = (apr_byte_t)((len >> 8) & 0xFF);
msg->buf[5] = (apr_byte_t)(len & 0xFF);
msg->len += len + 2; /* + 1 XXXX where is '\0' */
return ajp_ilink_send(sock, msg);
}