de62aedabc
Add some missing initialisation, and fix a handful benign resource leaks (including some false positives).
136 lines
4.1 KiB
C++
136 lines
4.1 KiB
C++
/*
|
|
* Copyright (c) 2002-2005 The Regents of The University of Michigan
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met: redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer;
|
|
* 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;
|
|
* neither the name of the copyright holders nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS 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 COPYRIGHT
|
|
* OWNER OR 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.
|
|
*
|
|
* Authors: Nathan Binkert
|
|
*/
|
|
|
|
#include <netinet/in.h>
|
|
#include <netinet/tcp.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
|
|
#include <cerrno>
|
|
|
|
#include "base/misc.hh"
|
|
#include "base/socket.hh"
|
|
#include "base/types.hh"
|
|
|
|
using namespace std;
|
|
|
|
bool ListenSocket::listeningDisabled = false;
|
|
bool ListenSocket::anyListening = false;
|
|
|
|
void
|
|
ListenSocket::disableAll()
|
|
{
|
|
if (anyListening)
|
|
panic("Too late to disable all listeners, already have a listener");
|
|
listeningDisabled = true;
|
|
}
|
|
|
|
bool
|
|
ListenSocket::allDisabled()
|
|
{
|
|
return listeningDisabled;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
//
|
|
//
|
|
|
|
ListenSocket::ListenSocket()
|
|
: listening(false), fd(-1)
|
|
{}
|
|
|
|
ListenSocket::~ListenSocket()
|
|
{
|
|
if (fd != -1)
|
|
close(fd);
|
|
}
|
|
|
|
// Create a socket and configure it for listening
|
|
bool
|
|
ListenSocket::listen(int port, bool reuse)
|
|
{
|
|
if (listening)
|
|
panic("Socket already listening!");
|
|
|
|
fd = ::socket(PF_INET, SOCK_STREAM, 0);
|
|
if (fd < 0)
|
|
panic("Can't create socket:%s !", strerror(errno));
|
|
|
|
if (reuse) {
|
|
int i = 1;
|
|
if (::setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&i,
|
|
sizeof(i)) < 0)
|
|
panic("ListenSocket(listen): setsockopt() SO_REUSEADDR failed!");
|
|
}
|
|
|
|
struct sockaddr_in sockaddr;
|
|
sockaddr.sin_family = PF_INET;
|
|
sockaddr.sin_addr.s_addr = INADDR_ANY;
|
|
sockaddr.sin_port = htons(port);
|
|
// finally clear sin_zero
|
|
memset(&sockaddr.sin_zero, 0, sizeof(sockaddr.sin_zero));
|
|
int ret = ::bind(fd, (struct sockaddr *)&sockaddr, sizeof (sockaddr));
|
|
if (ret != 0) {
|
|
if (ret == -1 && errno != EADDRINUSE)
|
|
panic("ListenSocket(listen): bind() failed!");
|
|
return false;
|
|
}
|
|
|
|
if (::listen(fd, 1) == -1) {
|
|
if (errno != EADDRINUSE)
|
|
panic("ListenSocket(listen): listen() failed!");
|
|
|
|
return false;
|
|
}
|
|
|
|
listening = true;
|
|
anyListening = true;
|
|
return true;
|
|
}
|
|
|
|
|
|
// Open a connection. Accept will block, so if you don't want it to,
|
|
// make sure a connection is ready before you call accept.
|
|
int
|
|
ListenSocket::accept(bool nodelay)
|
|
{
|
|
struct sockaddr_in sockaddr;
|
|
socklen_t slen = sizeof (sockaddr);
|
|
int sfd = ::accept(fd, (struct sockaddr *)&sockaddr, &slen);
|
|
if (sfd != -1 && nodelay) {
|
|
int i = 1;
|
|
if (::setsockopt(sfd, IPPROTO_TCP, TCP_NODELAY, (char *)&i,
|
|
sizeof(i)) < 0)
|
|
warn("ListenSocket(accept): setsockopt() TCP_NODELAY failed!");
|
|
}
|
|
|
|
return sfd;
|
|
}
|