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/* ====================================================================
* Copyright (c) 1999 The Apache Group. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* 4. The names "Apache Server" and "Apache Group" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Group.
* For more information on the Apache Group and the Apache HTTP server
* project, please see <http://www.apache.org/>.
*
*/
#include "networkio.h"
static ap_status_t soblock(int sd)
{
int fd_flags;
fd_flags = fcntl(sd, F_GETFL, 0);
#if defined(O_NONBLOCK)
fd_flags &= ~O_NONBLOCK;
#elif defined(O_NDELAY)
fd_flags &= ~O_NDELAY;
#elif defined(FNDELAY)
fd_flags &= ~O_FNDELAY;
#else
/* XXXX: this breaks things, but an alternative isn't obvious...*/
return -1;
#endif
if (fcntl(sd, F_SETFL, fd_flags) == -1) {
return errno;
}
return APR_SUCCESS;
}
static ap_status_t sononblock(int sd)
{
int fd_flags;
fd_flags = fcntl(sd, F_GETFL, 0);
#if defined(O_NONBLOCK)
fd_flags |= O_NONBLOCK;
#elif defined(O_NDELAY)
fd_flags |= O_NDELAY;
#elif defined(FNDELAY)
fd_flags |= O_FNDELAY;
#else
/* XXXX: this breaks things, but an alternative isn't obvious...*/
return -1;
#endif
if (fcntl(sd, F_SETFL, fd_flags) == -1) {
return errno;
}
return APR_SUCCESS;
}
/* ***APRDOC********************************************************
* ap_status_t ap_setsocketopt(ap_socket_t *, ap_int32_t , ap_int32_t)
* Setup socket options for the specified socket
* arg 1) The socket to set up.
* arg 2) The option we would like to configure. One of:
* APR_SO_DEBUG -- turn on debugging information
* APR_SO_KEEPALIVE -- keep connections active
* APR_SO_LINGER -- lingers on close if data is present
* APR_SO_NONBLOCK -- Turns blocking on/off for socket
* APR_SO_REUSEADDR -- The rules used in validating addresses
* supplied to bind should allow reuse
* of local addresses.
* APR_SO_TIMEOUT -- Set the timeout value in seconds.
* values < 0 mean wait forever. 0 means
* don't wait at all.
* APR_SO_SNDBUF -- Set the SendBufferSize
* arg 3) Are we turning the option on or off.
*/
ap_status_t ap_setsocketopt(struct socket_t *sock, ap_int32_t opt, ap_int32_t on)
{
int one;
struct linger li;
ap_status_t stat;
if (on)
one = 1;
else
one = 0;
if (opt & APR_SO_KEEPALIVE) {
if (setsockopt(sock->socketdes, SOL_SOCKET, SO_KEEPALIVE, (void *)&one, sizeof(int)) == -1) {
return errno;
}
}
if (opt & APR_SO_DEBUG) {
if (setsockopt(sock->socketdes, SOL_SOCKET, SO_DEBUG, (void *)&one, sizeof(int)) == -1) {
return errno;
}
}
if (opt & APR_SO_REUSEADDR) {
if (setsockopt(sock->socketdes, SOL_SOCKET, SO_REUSEADDR, (void *)&one, sizeof(int)) == -1) {
return errno;
}
}
if (opt & APR_SO_SNDBUF) {
if (setsockopt(sock->socketdes, SOL_SOCKET, SO_SNDBUF, (void *)&on, sizeof(int)) == -1) {
return errno;
}
}
if (opt & APR_SO_NONBLOCK) {
if (on) {
if ((stat = soblock(sock->socketdes)) != APR_SUCCESS)
return stat;
}
else {
if ((stat = sononblock(sock->socketdes)) != APR_SUCCESS)
return stat;
}
}
if (opt & APR_SO_LINGER) {
li.l_onoff = on;
li.l_linger = MAX_SECS_TO_LINGER;
if (setsockopt(sock->socketdes, SOL_SOCKET, SO_LINGER, (char *) &li, sizeof(struct linger)) == -1) {
return errno;
}
}
if (opt & APR_SO_TIMEOUT) {
sock->timeout = on;
if ((stat = sononblock(sock->socketdes)) != APR_SUCCESS) {
return stat;
}
}
return APR_SUCCESS;
}
/* ***APRDOC********************************************************
* ap_status_t ap_gethostname(char *, ap_int32_t, ap_context_t *)
* Get name of the current machine
* arg 1) The context to use.
* arg 2) A buffer to store the hostname in.
* arg 3) The maximum length of the hostname that can be stored in the
* buffer provided.
*/
ap_status_t ap_gethostname(char *buf, ap_int32_t len, ap_context_t *cont)
{
if (gethostname(buf, len) == -1)
return errno;
else
return APR_SUCCESS;
}
/* ***APRDOC********************************************************
* ap_status_t ap_get_remote_hostname(ap_socket_t *, char *)
* Get name of the machine we are currently connected to.
* arg 1) The socket to examine.
* arg 2) A buffer to store the hostname in.
*/
ap_status_t ap_get_remote_hostname(char **name, struct socket_t *sock)
{
struct hostent *hptr;
hptr = gethostbyaddr((char *)&(sock->remote_addr->sin_addr),
sizeof(struct in_addr), AF_INET);
if (hptr != NULL) {
*name = ap_pstrdup(sock->cntxt, hptr->h_name);
if (*name) {
return APR_SUCCESS;
}
return APR_ENOMEM;
}
/* XXX - Is this threadsafe? */
return h_errno;
}
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