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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 "apr_arch_networkio.h"
#include "apr_errno.h"
#include "apr_general.h"
#include "apr_network_io.h"
#include "apr_support.h"
#include "apr_lib.h"
#include <sys/time.h>
static apr_status_t wait_socket_ready(apr_socket_t *sock, int readwrite)
{
int pollsocket = sock->socketdes;
int wait_rc = select(&pollsocket, readwrite == 0, readwrite == 1, 0, sock->timeout / 1000);
if (wait_rc == 0) {
return APR_TIMEUP;
}
else if (wait_rc < 0) {
return APR_FROM_OS_ERROR(sock_errno());
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_socket_sendto(apr_socket_t *sock,
apr_sockaddr_t *where,
apr_int32_t flags, const char *buf,
apr_size_t *len)
{
apr_ssize_t rv;
int serrno;
do {
rv = sendto(sock->socketdes, buf, (*len), flags,
(struct sockaddr*)&where->sa,
where->salen);
if (rv == -1) {
serrno = sock_errno();
if (serrno == SOCEWOULDBLOCK && sock->timeout != 0) {
apr_status_t wait_status = wait_socket_ready(sock, 1);
if (wait_status != APR_SUCCESS) {
*len = 0;
return wait_status;
}
}
else if (serrno != SOCEINTR) {
*len = 0;
return APR_FROM_OS_ERROR(serrno);
}
}
else {
*len = rv;
return APR_SUCCESS;
}
} while (1);
}
APR_DECLARE(apr_status_t) apr_socket_recvfrom(apr_sockaddr_t *from,
apr_socket_t *sock,
apr_int32_t flags, char *buf,
apr_size_t *len)
{
apr_ssize_t rv;
int serrno;
do {
from->salen = sizeof(from->sa);
rv = recvfrom(sock->socketdes, buf, (*len), flags,
(struct sockaddr*)&from->sa,
&from->salen);
if (rv == -1) {
serrno = sock_errno();
if (serrno == SOCEWOULDBLOCK && sock->timeout != 0) {
apr_status_t wait_status = wait_socket_ready(sock, 0);
if (wait_status != APR_SUCCESS) {
*len = 0;
return wait_status;
}
}
else if (serrno != SOCEINTR) {
*len = 0;
return APR_FROM_OS_ERROR(serrno);
}
}
else {
*len = rv;
apr_sockaddr_vars_set(from, from->sa.sin.sin_family, ntohs(from->sa.sin.sin_port));
return (rv == 0 && sock->type == SOCK_STREAM) ? APR_EOF : APR_SUCCESS;
}
} while (1);
}
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