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/* 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.h"
APLOG_USE_MODULE(proxy_ajp);
apr_status_t ajp_ilink_send(apr_socket_t *sock, ajp_msg_t *msg)
{
char *buf;
apr_status_t status;
apr_size_t length;
ajp_msg_end(msg);
length = msg->len;
buf = (char *)msg->buf;
do {
apr_size_t written = length;
status = apr_socket_send(sock, buf, &written);
if (status != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, status, NULL, APLOGNO(01029)
"ajp_ilink_send(): send failed");
return status;
}
length -= written;
buf += written;
} while (length);
return APR_SUCCESS;
}
static apr_status_t ilink_read(apr_socket_t *sock, apr_byte_t *buf,
apr_size_t len)
{
apr_size_t length = len;
apr_size_t rdlen = 0;
apr_status_t status;
while (rdlen < len) {
status = apr_socket_recv(sock, (char *)(buf + rdlen), &length);
if (status == APR_EOF)
return status; /* socket closed. */
else if (APR_STATUS_IS_EAGAIN(status))
continue;
else if (status != APR_SUCCESS)
return status; /* any error. */
rdlen += length;
length = len - rdlen;
}
return APR_SUCCESS;
}
apr_status_t ajp_ilink_receive(apr_socket_t *sock, ajp_msg_t *msg)
{
apr_status_t status;
apr_size_t hlen;
apr_size_t blen;
hlen = msg->header_len;
status = ilink_read(sock, msg->buf, hlen);
if (status != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, status, NULL, APLOGNO(01030)
"ajp_ilink_receive() can't receive header");
return (APR_STATUS_IS_TIMEUP(status) ? APR_TIMEUP : AJP_ENO_HEADER);
}
status = ajp_msg_check_header(msg, &blen);
if (status != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, NULL, APLOGNO(01031)
"ajp_ilink_receive() received bad header");
return AJP_EBAD_HEADER;
}
status = ilink_read(sock, msg->buf + hlen, blen);
if (status != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, status, NULL, APLOGNO(01032)
"ajp_ilink_receive() error while receiving message body "
"of length %" APR_SIZE_T_FMT,
hlen);
return AJP_EBAD_MESSAGE;
}
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, NULL, APLOGNO(01033)
"ajp_ilink_receive() received packet len=%" APR_SIZE_T_FMT
"type=%d",
blen, (int)msg->buf[hlen]);
return APR_SUCCESS;
}