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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "socket_options.h"
#include <fcntl.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <unistd.h>
namespace vespalib {
namespace {
bool set_bool_opt(int fd, int level, int name, bool value) {
int data = value;
return (setsockopt(fd, level, name, &data, sizeof(data)) == 0);
}
} // namespace vespalib::<unnamed>
bool
SocketOptions::set_blocking(int fd, bool value)
{
int flags = fcntl(fd, F_GETFL, NULL);
if (flags != -1) {
if (value) {
flags &= ~O_NONBLOCK; // clear non-blocking flag
} else {
flags |= O_NONBLOCK; // set non-blocking flag
}
return (fcntl(fd, F_SETFL, flags) == 0);
}
return false;
}
bool
SocketOptions::set_nodelay(int fd, bool value)
{
return set_bool_opt(fd, IPPROTO_TCP, TCP_NODELAY, value);
}
bool
SocketOptions::set_reuse_addr(int fd, bool value)
{
return set_bool_opt(fd, SOL_SOCKET, SO_REUSEADDR, value);
}
bool
SocketOptions::set_ipv6_only(int fd, bool value)
{
return set_bool_opt(fd, IPPROTO_IPV6, IPV6_V6ONLY, value);
}
bool
SocketOptions::set_keepalive(int fd, bool value)
{
return set_bool_opt(fd, SOL_SOCKET, SO_KEEPALIVE, value);
}
bool
SocketOptions::set_linger(int fd, bool enable, int value)
{
struct linger data;
memset(&data, 0, sizeof(data));
data.l_onoff = enable;
data.l_linger = value;
return (setsockopt(fd, SOL_SOCKET, SO_LINGER, &data, sizeof(data)) == 0);
}
} // namespace vespalib
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