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gcc/libjava/java/net/natPlainSocketImpl.cc
Bryce McKinlay 5ac99d9adc Boolean.java (Boolean(String)): Set Value' to false on a null String constructor parameter. 
1999-12-16  Bryce McKinlay  <bryce@albatross.co.nz>

        * java/lang/Boolean.java (Boolean(String)): Set Value' to false on a
        null String constructor parameter.
        * java/net/natPlainSocketImpl.cc: Remove unneccessary sprintf calls
        for exception messages.
        BooleanClass: declare.
        (setOption): Use BooleanClass instead of Class.forName() for
        instanceof test.
        (bind): Cast 4th parameter of setsockopt to char *' for
        compatibility with older Solaris headers.
        * java/net/natPlainDatagramSocketImpl.cc: Remove unneccessary
        sprintf calls for exception messages.
        BooleanClass, IntegerClass: declare.
        (setOption): Use BooleanClass and IntegerClass, not Class.forName()
        for instanceof test.

From-SVN: r30988
1999-12-17 05:11:28 +00:00

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