478 lines
12 KiB
C++
478 lines
12 KiB
C++
/* Copyright (C) 1998, 1999 Free Software Foundation
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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#include <config.h>
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#ifndef DISABLE_JAVA_NET
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#ifdef USE_WINSOCK
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#include <windows.h>
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#include <winsock.h>
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#include <errno.h>
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#include <string.h>
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#ifndef ENOPROTOOPT
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#define ENOPROTOOPT 109
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#endif
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#else /* USE_WINSOCK */
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <errno.h>
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#include <string.h>
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#endif /* USE_WINSOCK */
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#endif /* DISABLE_JAVA_NET */
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#if HAVE_BSTRING_H
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// Needed for bzero, implicitly used by FD_ZERO on IRIX 5.2
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#include <bstring.h>
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#endif
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#include <gcj/cni.h>
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#include <gcj/javaprims.h>
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#include <java/io/IOException.h>
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#include <java/io/FileDescriptor.h>
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#include <java/io/InterruptedIOException.h>
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#include <java/net/BindException.h>
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#include <java/net/ConnectException.h>
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#include <java/net/PlainSocketImpl.h>
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#include <java/net/InetAddress.h>
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#include <java/net/SocketException.h>
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#include <java/lang/InternalError.h>
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#include <java/lang/Object.h>
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#include <java/lang/Boolean.h>
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#include <java/lang/Class.h>
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#include <java/lang/Integer.h>
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#define BooleanClass _CL_Q34java4lang7Boolean
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extern java::lang::Class BooleanClass;
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#ifdef DISABLE_JAVA_NET
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void
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java::net::PlainSocketImpl::create (jboolean)
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{
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JvThrow (new java::io::IOException (JvNewStringLatin1 ("SocketImpl.create: unimplemented")));
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}
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void
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java::net::PlainSocketImpl::bind (java::net::InetAddress *, jint)
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{
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JvThrow (new BindException (JvNewStringLatin1 ("SocketImpl.bind: unimplemented")));
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}
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void
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java::net::PlainSocketImpl::connect (java::net::InetAddress *, jint)
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{
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JvThrow (new ConnectException (JvNewStringLatin1 ("SocketImpl.connect: unimplemented")));
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}
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void
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java::net::PlainSocketImpl::listen (jint)
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{
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JvThrow (new java::io::IOException (JvNewStringLatin1 ("SocketImpl.listen: unimplemented")));
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}
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void
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java::net::PlainSocketImpl::accept (java::net::PlainSocketImpl *)
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{
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JvThrow (new java::io::IOException (JvNewStringLatin1 ("SocketImpl.accept: unimplemented")));
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}
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void
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java::net::PlainSocketImpl::setOption (jint, java::lang::Object *)
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{
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JvThrow (new SocketException (JvNewStringLatin1 ("SocketImpl.setOption: unimplemented")));
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}
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java::lang::Object *
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java::net::PlainSocketImpl::getOption (jint)
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{
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JvThrow (new SocketException (JvNewStringLatin1 ("SocketImpl.getOption: unimplemented")));
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}
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#else /* DISABLE_JAVA_NET */
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#ifndef HAVE_SOCKLEN_T
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typedef int socklen_t;
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#endif
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union SockAddr
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{
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struct sockaddr_in address;
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#ifdef HAVE_INET6
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struct sockaddr_in6 address6;
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#endif
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};
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void
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java::net::PlainSocketImpl::create (jboolean stream)
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{
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int sock = ::socket (AF_INET, stream ? SOCK_STREAM : SOCK_DGRAM, 0);
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if (sock < 0)
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{
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char* strerr = strerror (errno);
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JvThrow (new java::io::IOException (JvNewStringUTF (strerr)));
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}
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fnum = sock;
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fd = new java::io::FileDescriptor (sock);
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}
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void
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java::net::PlainSocketImpl::bind (java::net::InetAddress *host, jint lport)
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{
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union SockAddr u;
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struct sockaddr *ptr = (struct sockaddr *) &u.address;
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jbyteArray haddress = host->address;
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jbyte *bytes = elements (haddress);
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int len = haddress->length;
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int i = 1;
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if (len == 4)
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{
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u.address.sin_family = AF_INET;
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if (host != NULL)
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memcpy (&u.address.sin_addr, bytes, len);
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else
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u.address.sin_addr.s_addr = htonl (INADDR_ANY);
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len = sizeof (struct sockaddr_in);
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u.address.sin_port = htons (lport);
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}
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#ifdef HAVE_INET6
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else if (len == 16)
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{
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u.address6.sin6_family = AF_INET6;
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memcpy (&u.address6.sin6_addr, bytes, len);
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len = sizeof (struct sockaddr_in6);
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u.address6.sin6_port = htons (lport);
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}
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#endif
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else
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goto error;
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// Enable SO_REUSEADDR, so that servers can reuse ports left in TIME_WAIT.
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::setsockopt(fnum, SOL_SOCKET, SO_REUSEADDR, (char *) &i, sizeof(i));
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if (::bind (fnum, ptr, len) == 0)
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{
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address = host;
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socklen_t addrlen = sizeof(u);
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if (lport != 0)
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localport = lport;
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else if (::getsockname (fnum, (sockaddr*) &u, &addrlen) == 0)
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localport = ntohs (u.address.sin_port);
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else
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goto error;
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return;
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}
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error:
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char* strerr = strerror (errno);
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JvThrow (new java::net::BindException (JvNewStringUTF (strerr)));
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}
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void
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java::net::PlainSocketImpl::connect (java::net::InetAddress *host, jint rport)
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{
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union SockAddr u;
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socklen_t addrlen = sizeof(u);
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jbyteArray haddress = host->address;
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jbyte *bytes = elements (haddress);
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int len = haddress->length;
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struct sockaddr *ptr = (struct sockaddr *) &u.address;
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if (len == 4)
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{
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u.address.sin_family = AF_INET;
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memcpy (&u.address.sin_addr, bytes, len);
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len = sizeof (struct sockaddr_in);
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u.address.sin_port = htons (rport);
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}
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#ifdef HAVE_INET6
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else if (len == 16)
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{
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u.address6.sin6_family = AF_INET6;
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memcpy (&u.address6.sin6_addr, bytes, len);
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len = sizeof (struct sockaddr_in6);
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u.address6.sin6_port = htons (rport);
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}
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#endif
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else
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goto error;
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if (::connect (fnum, ptr, len) != 0)
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goto error;
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address = host;
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port = rport;
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// A bind may not have been done on this socket; if so, set localport now.
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if (localport == 0)
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if (::getsockname (fnum, (sockaddr*) &u, &addrlen) == 0)
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localport = ntohs (u.address.sin_port);
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else
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goto error;
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return;
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error:
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char* strerr = strerror (errno);
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JvThrow (new java::net::ConnectException (JvNewStringUTF (strerr)));
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}
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void
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java::net::PlainSocketImpl::listen (jint backlog)
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{
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if (::listen (fnum, backlog) != 0)
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{
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char* strerr = strerror (errno);
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JvThrow (new java::io::IOException (JvNewStringUTF (strerr)));
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}
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}
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void
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java::net::PlainSocketImpl::accept (java::net::PlainSocketImpl *s)
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{
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union SockAddr u;
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socklen_t addrlen = sizeof(u);
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int new_socket = 0;
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// Do timeouts via select since SO_RCVTIMEO is not always available.
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if (timeout > 0)
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{
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fd_set rset;
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struct timeval tv;
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FD_ZERO(&rset);
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FD_SET(fnum, &rset);
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tv.tv_sec = timeout / 1000;
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tv.tv_usec = (timeout % 1000) * 1000;
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int retval;
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if ((retval = select (fnum + 1, &rset, NULL, NULL, &tv)) < 0)
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goto error;
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else if (retval == 0)
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JvThrow (new java::io::InterruptedIOException (
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JvNewStringUTF("Accept timed out")));
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}
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new_socket = ::accept (fnum, (sockaddr*) &u, &addrlen);
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if (new_socket < 0)
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goto error;
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jbyteArray raddr;
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jint rport;
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if (u.address.sin_family == AF_INET)
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{
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raddr = JvNewByteArray (4);
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memcpy (elements (raddr), &u.address.sin_addr, 4);
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rport = ntohs (u.address.sin_port);
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}
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#ifdef HAVE_INET6
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else if (u.address.sin_family == AF_INET6)
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{
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raddr = JvNewByteArray (16);
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memcpy (elements (raddr), &u.address6.sin6_addr, 16);
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rport = ntohs (u.address6.sin6_port);
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}
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#endif
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else
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goto error;
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s->fnum = new_socket;
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s->localport = localport;
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s->address = new InetAddress (raddr, NULL);
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s->port = rport;
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s->fd = new java::io::FileDescriptor (new_socket);
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return;
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error:
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char* strerr = strerror (errno);
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JvThrow (new java::io::IOException (JvNewStringUTF (strerr)));
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}
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void
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java::net::PlainSocketImpl::setOption (jint optID, java::lang::Object *value)
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{
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int val;
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socklen_t val_len = sizeof (val);
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if (_Jv_IsInstanceOf (value, &BooleanClass))
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{
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java::lang::Boolean *boolobj =
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static_cast<java::lang::Boolean *> (value);
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if (boolobj->booleanValue())
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val = 1;
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else
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{
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if (optID == _Jv_SO_LINGER_)
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val = -1;
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else
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val = 0;
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}
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}
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else // assume value is an Integer
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{
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java::lang::Integer *intobj =
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static_cast<java::lang::Integer *> (value);
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val = (int) intobj->intValue();
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}
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switch (optID)
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{
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case _Jv_TCP_NODELAY_ :
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#ifdef TCP_NODELAY
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if (::setsockopt (fnum, IPPROTO_TCP, TCP_NODELAY, (char *) &val,
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val_len) != 0)
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goto error;
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#else
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JvThrow (new java::lang::InternalError (
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JvNewStringUTF ("TCP_NODELAY not supported")));
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#endif /* TCP_NODELAY */
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return;
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case _Jv_SO_LINGER_ :
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#ifdef SO_LINGER
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struct linger l_val;
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l_val.l_onoff = (val != -1);
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l_val.l_linger = val;
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if (::setsockopt (fnum, SOL_SOCKET, SO_LINGER, (char *) &l_val,
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sizeof(l_val)) != 0)
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goto error;
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#else
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JvThrow (new java::lang::InternalError (
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JvNewStringUTF ("SO_LINGER not supported")));
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#endif /* SO_LINGER */
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return;
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case _Jv_SO_SNDBUF_ :
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case _Jv_SO_RCVBUF_ :
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#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
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int opt;
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optID == _Jv_SO_SNDBUF_ ? opt = SO_SNDBUF : opt = SO_RCVBUF;
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if (::setsockopt (fnum, SOL_SOCKET, opt, (char *) &val, val_len) != 0)
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goto error;
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#else
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JvThrow (new java::lang::InternalError (
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JvNewStringUTF ("SO_RCVBUF/SO_SNDBUF not supported")));
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#endif
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return;
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case _Jv_SO_BINDADDR_ :
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JvThrow (new java::net::SocketException (
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JvNewStringUTF ("SO_BINDADDR: read only option")));
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return;
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case _Jv_IP_MULTICAST_IF_ :
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JvThrow (new java::net::SocketException (
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JvNewStringUTF ("IP_MULTICAST_IF: not valid for TCP")));
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return;
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case _Jv_SO_REUSEADDR_ :
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JvThrow (new java::net::SocketException (
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JvNewStringUTF ("SO_REUSEADDR: not valid for TCP")));
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return;
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case _Jv_SO_TIMEOUT_ :
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timeout = val;
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return;
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default :
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errno = ENOPROTOOPT;
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}
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error:
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char* strerr = strerror (errno);
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JvThrow (new java::net::SocketException (JvNewStringUTF (strerr)));
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}
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java::lang::Object *
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java::net::PlainSocketImpl::getOption (jint optID)
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{
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int val;
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socklen_t val_len = sizeof(val);
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union SockAddr u;
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socklen_t addrlen = sizeof(u);
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struct linger l_val;
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socklen_t l_val_len = sizeof(l_val);
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switch (optID)
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{
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#ifdef TCP_NODELAY
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case _Jv_TCP_NODELAY_ :
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if (::getsockopt (fnum, IPPROTO_TCP, TCP_NODELAY, (char *) &val,
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&val_len) != 0)
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goto error;
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else
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return new java::lang::Boolean (val != 0);
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#else
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JvThrow (new java::lang::InternalError (
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JvNewStringUTF ("TCP_NODELAY not supported")));
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#endif
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break;
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case _Jv_SO_LINGER_ :
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#ifdef SO_LINGER
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if (::getsockopt (fnum, SOL_SOCKET, SO_LINGER, (char *) &l_val,
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&l_val_len) != 0)
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goto error;
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if (l_val.l_onoff)
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return new java::lang::Integer (l_val.l_linger);
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else
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return new java::lang::Boolean ((__java_boolean)false);
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#else
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JvThrow (new java::lang::InternalError (
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JvNewStringUTF ("SO_LINGER not supported")));
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#endif
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break;
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case _Jv_SO_RCVBUF_ :
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case _Jv_SO_SNDBUF_ :
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#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
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int opt;
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optID == _Jv_SO_SNDBUF_ ? opt = SO_SNDBUF : opt = SO_RCVBUF;
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if (::getsockopt (fnum, SOL_SOCKET, opt, (char *) &val, &val_len) != 0)
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goto error;
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else
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return new java::lang::Integer (val);
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#else
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JvThrow (new java::lang::InternalError (
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JvNewStringUTF ("SO_RCVBUF/SO_SNDBUF not supported")));
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#endif
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break;
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case _Jv_SO_BINDADDR_:
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// cache the local address
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if (localAddress == NULL)
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{
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jbyteArray laddr;
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if (::getsockname (fnum, (sockaddr*) &u, &addrlen) != 0)
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goto error;
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if (u.address.sin_family == AF_INET)
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{
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laddr = JvNewByteArray (4);
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memcpy (elements (laddr), &u.address.sin_addr, 4);
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}
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#ifdef HAVE_INET6
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else if (u.address.sin_family == AF_INET6)
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{
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laddr = JvNewByteArray (16);
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memcpy (elements (laddr), &u.address6.sin6_addr, 16);
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}
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#endif
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else
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goto error;
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localAddress = new java::net::InetAddress (laddr, NULL);
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}
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return localAddress;
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break;
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case _Jv_IP_MULTICAST_IF_ :
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JvThrow (new java::net::SocketException (
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JvNewStringUTF ("IP_MULTICAST_IF: not valid for TCP")));
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break;
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case _Jv_SO_REUSEADDR_ :
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JvThrow (new java::net::SocketException (
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JvNewStringUTF ("SO_REUSEADDR: not valid for TCP")));
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break;
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case _Jv_SO_TIMEOUT_ :
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return new java::lang::Integer (timeout);
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break;
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default :
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errno = ENOPROTOOPT;
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}
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error:
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char* strerr = strerror (errno);
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JvThrow (new java::net::SocketException (JvNewStringUTF (strerr)));
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}
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#endif /* DISABLE_JAVA_NET */
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