in network_io/unix/sockopt.c [113:352]
apr_status_t apr_socket_opt_set(apr_socket_t *sock,
apr_int32_t opt, apr_int32_t on)
{
int one;
apr_status_t rv;
if (on)
one = 1;
else
one = 0;
switch(opt) {
case APR_SO_KEEPALIVE:
#ifdef SO_KEEPALIVE
if (on != apr_is_option_set(sock, APR_SO_KEEPALIVE)) {
if (setsockopt(sock->socketdes, SOL_SOCKET, SO_KEEPALIVE, (void *)&one, sizeof(int)) == -1) {
return errno;
}
apr_set_option(sock, APR_SO_KEEPALIVE, on);
}
#else
return APR_ENOTIMPL;
#endif
break;
case APR_SO_DEBUG:
if (on != apr_is_option_set(sock, APR_SO_DEBUG)) {
if (setsockopt(sock->socketdes, SOL_SOCKET, SO_DEBUG, (void *)&one, sizeof(int)) == -1) {
return errno;
}
apr_set_option(sock, APR_SO_DEBUG, on);
}
break;
case APR_SO_BROADCAST:
#ifdef SO_BROADCAST
if (on != apr_is_option_set(sock, APR_SO_BROADCAST)) {
if (setsockopt(sock->socketdes, SOL_SOCKET, SO_BROADCAST, (void *)&one, sizeof(int)) == -1) {
return errno;
}
apr_set_option(sock, APR_SO_BROADCAST, on);
}
#else
return APR_ENOTIMPL;
#endif
break;
case APR_SO_REUSEADDR:
if (on != apr_is_option_set(sock, APR_SO_REUSEADDR)) {
if (setsockopt(sock->socketdes, SOL_SOCKET, SO_REUSEADDR, (void *)&one, sizeof(int)) == -1) {
return errno;
}
apr_set_option(sock, APR_SO_REUSEADDR, on);
}
break;
case APR_SO_SNDBUF:
#ifdef SO_SNDBUF
if (setsockopt(sock->socketdes, SOL_SOCKET, SO_SNDBUF, (void *)&on, sizeof(int)) == -1) {
return errno;
}
#else
return APR_ENOTIMPL;
#endif
break;
case APR_SO_RCVBUF:
#ifdef SO_RCVBUF
if (setsockopt(sock->socketdes, SOL_SOCKET, SO_RCVBUF, (void *)&on, sizeof(int)) == -1) {
return errno;
}
#else
return APR_ENOTIMPL;
#endif
break;
case APR_SO_NONBLOCK:
if (apr_is_option_set(sock, APR_SO_NONBLOCK) != on) {
if (on) {
if ((rv = sononblock(sock->socketdes)) != APR_SUCCESS)
return rv;
}
else {
if ((rv = soblock(sock->socketdes)) != APR_SUCCESS)
return rv;
}
apr_set_option(sock, APR_SO_NONBLOCK, on);
}
break;
case APR_SO_LINGER:
#ifdef SO_LINGER
if (apr_is_option_set(sock, APR_SO_LINGER) != on) {
struct linger li;
li.l_onoff = on;
li.l_linger = APR_MAX_SECS_TO_LINGER;
if (setsockopt(sock->socketdes, SOL_SOCKET, SO_LINGER, (char *) &li, sizeof(struct linger)) == -1) {
return errno;
}
apr_set_option(sock, APR_SO_LINGER, on);
}
#else
return APR_ENOTIMPL;
#endif
break;
case APR_TCP_DEFER_ACCEPT:
#if defined(TCP_DEFER_ACCEPT)
if (apr_is_option_set(sock, APR_TCP_DEFER_ACCEPT) != on) {
int optlevel = IPPROTO_TCP;
int optname = TCP_DEFER_ACCEPT;
if (setsockopt(sock->socketdes, optlevel, optname,
(void *)&on, sizeof(int)) == -1) {
return errno;
}
apr_set_option(sock, APR_TCP_DEFER_ACCEPT, on);
}
#else
return APR_ENOTIMPL;
#endif
break;
case APR_TCP_NODELAY:
#if defined(TCP_NODELAY)
if (apr_is_option_set(sock, APR_TCP_NODELAY) != on) {
int optlevel = IPPROTO_TCP;
int optname = TCP_NODELAY;
#if APR_HAVE_SCTP
if (sock->protocol == IPPROTO_SCTP) {
optlevel = IPPROTO_SCTP;
optname = SCTP_NODELAY;
}
#endif
if (setsockopt(sock->socketdes, optlevel, optname, (void *)&on, sizeof(int)) == -1) {
return errno;
}
apr_set_option(sock, APR_TCP_NODELAY, on);
}
#else
/* BeOS pre-BONE has TCP_NODELAY set by default.
* As it can't be turned off we might as well check if they're asking
* for it to be turned on!
*/
#ifdef BEOS
if (on == 1)
return APR_SUCCESS;
else
#endif
return APR_ENOTIMPL;
#endif
break;
case APR_TCP_NOPUSH:
#if APR_TCP_NOPUSH_FLAG
/* TCP_NODELAY and TCP_CORK are mutually exclusive on Linux
* kernels < 2.6; on newer kernels they can be used together
* and TCP_CORK takes preference, which is the desired
* behaviour. On older kernels, TCP_NODELAY must be toggled
* to "off" whilst TCP_CORK is in effect. */
if (apr_is_option_set(sock, APR_TCP_NOPUSH) != on) {
#ifndef HAVE_TCP_NODELAY_WITH_CORK
int optlevel = IPPROTO_TCP;
int optname = TCP_NODELAY;
#if APR_HAVE_SCTP
if (sock->protocol == IPPROTO_SCTP) {
optlevel = IPPROTO_SCTP;
optname = SCTP_NODELAY;
}
#endif
/* OK we're going to change some settings here... */
if (apr_is_option_set(sock, APR_TCP_NODELAY) == 1 && on) {
/* Now toggle TCP_NODELAY to off, if TCP_CORK is being
* turned on: */
int tmpflag = 0;
if (setsockopt(sock->socketdes, optlevel, optname,
(void*)&tmpflag, sizeof(int)) == -1) {
return errno;
}
apr_set_option(sock, APR_RESET_NODELAY, 1);
apr_set_option(sock, APR_TCP_NODELAY, 0);
} else if (on) {
apr_set_option(sock, APR_RESET_NODELAY, 0);
}
#endif /* HAVE_TCP_NODELAY_WITH_CORK */
/* OK, now we can just set the TCP_NOPUSH flag accordingly...*/
if (setsockopt(sock->socketdes, IPPROTO_TCP, APR_TCP_NOPUSH_FLAG,
(void*)&on, sizeof(int)) == -1) {
return errno;
}
apr_set_option(sock, APR_TCP_NOPUSH, on);
#ifndef HAVE_TCP_NODELAY_WITH_CORK
if (!on && apr_is_option_set(sock, APR_RESET_NODELAY)) {
/* Now, if TCP_CORK was just turned off, turn
* TCP_NODELAY back on again if it was earlier toggled
* to off: */
int tmpflag = 1;
if (setsockopt(sock->socketdes, optlevel, optname,
(void*)&tmpflag, sizeof(int)) == -1) {
return errno;
}
apr_set_option(sock, APR_RESET_NODELAY,0);
apr_set_option(sock, APR_TCP_NODELAY, 1);
}
#endif /* HAVE_TCP_NODELAY_WITH_CORK */
}
#else
return APR_ENOTIMPL;
#endif
break;
case APR_INCOMPLETE_READ:
apr_set_option(sock, APR_INCOMPLETE_READ, on);
break;
case APR_IPV6_V6ONLY:
#if APR_HAVE_IPV6 && defined(IPV6_V6ONLY)
/* we don't know the initial setting of this option,
* so don't check sock->options since that optimization
* won't work
*/
if (setsockopt(sock->socketdes, IPPROTO_IPV6, IPV6_V6ONLY,
(void *)&on, sizeof(int)) == -1) {
return errno;
}
apr_set_option(sock, APR_IPV6_V6ONLY, on);
#else
return APR_ENOTIMPL;
#endif
break;
case APR_SO_FREEBIND:
#if defined(IP_FREEBIND)
if (setsockopt(sock->socketdes, SOL_IP, IP_FREEBIND,
(void *)&one, sizeof(int)) == -1) {
return errno;
}
apr_set_option(sock, APR_SO_FREEBIND, on);
#elif 0 /* defined(IP_BINDANY) ... */
/* TODO: insert FreeBSD support here, note family specific
* options, IP_BINDANY vs IPV6_BINDANY */
#else
return APR_ENOTIMPL;
#endif
break;
default:
return APR_EINVAL;
}
return APR_SUCCESS;
}