JNIEXPORT void JNICALL
Java_sun_nio_ch_Net_bind(JNIEnv *env, jclass clazz, /* ## Needs rest of PSI gunk */
jobject fdo, jobject ia, int port)
{
SOCKADDR sa;
int sa_len = SOCKADDR_LEN;
int rv = 0;
NET_InetAddressToSockaddr(env, ia, port, (struct sockaddr *)&sa, &sa_len);
rv = NET_Bind(fdval(env, fdo), (struct sockaddr *)&sa, sa_len);
if (rv != 0) {
handleSocketError(env, errno);
}
}
/*
* Class: java_net_DualStackPlainSocketImpl
* Method: bind0
* Signature: (ILjava/net/InetAddress;I)V
*/
JNIEXPORT void JNICALL Java_java_net_DualStackPlainSocketImpl_bind0
(JNIEnv *env, jclass clazz, jint fd, jobject iaObj, jint port) {
SOCKETADDRESS sa;
int rv;
int sa_len = sizeof(sa);
if (NET_InetAddressToSockaddr(env, iaObj, port, (struct sockaddr *)&sa,
&sa_len, JNI_TRUE) != 0) {
return;
}
rv = NET_Bind(fd, (struct sockaddr *)&sa, sa_len);
if (rv == SOCKET_ERROR)
NET_ThrowNew(env, WSAGetLastError(), "JVM_Bind");
}
JNIEXPORT void JNICALL
Java_sun_nio_ch_Net_bind0(JNIEnv *env, jclass clazz, jobject fdo, jboolean preferIPv6,
jboolean useExclBind, jobject iao, int port)
{
SOCKADDR sa;
int sa_len = SOCKADDR_LEN;
int rv = 0;
if (NET_InetAddressToSockaddr(env, iao, port, (struct sockaddr *)&sa, &sa_len, preferIPv6) != 0) {
return;
}
rv = NET_Bind(fdval(env, fdo), (struct sockaddr *)&sa, sa_len);
if (rv != 0) {
handleSocketError(env, errno);
}
}
JNIEXPORT int JNICALL
NET_BindV6(struct ipv6bind* b) {
int fd=-1, ofd=-1, rv, len;
/* need to defer close until new sockets created */
int close_fd=-1, close_ofd=-1;
SOCKETADDRESS oaddr; /* other address to bind */
int family = b->addr->him.sa_family;
int ofamily;
u_short port; /* requested port parameter */
u_short bound_port;
if (family == AF_INET && (b->addr->him4.sin_addr.s_addr != INADDR_ANY)) {
/* bind to v4 only */
int ret;
ret = NET_Bind (b->ipv4_fd, (struct sockaddr *)b->addr,
sizeof (struct sockaddr_in));
if (ret == SOCKET_ERROR) {
CLOSE_SOCKETS_AND_RETURN;
}
closesocket (b->ipv6_fd);
b->ipv6_fd = -1;
return 0;
}
if (family == AF_INET6 && (!IN6_IS_ADDR_ANY(&b->addr->him6.sin6_addr))) {
/* bind to v6 only */
int ret;
ret = NET_Bind (b->ipv6_fd, (struct sockaddr *)b->addr,
sizeof (struct SOCKADDR_IN6));
if (ret == SOCKET_ERROR) {
CLOSE_SOCKETS_AND_RETURN;
}
closesocket (b->ipv4_fd);
b->ipv4_fd = -1;
return 0;
}
/* We need to bind on both stacks, with the same port number */
memset (&oaddr, 0, sizeof(oaddr));
if (family == AF_INET) {
ofamily = AF_INET6;
fd = b->ipv4_fd;
ofd = b->ipv6_fd;
port = (u_short)GET_PORT (b->addr);
IN6ADDR_SETANY (&oaddr.him6);
oaddr.him6.sin6_port = port;
} else {
ofamily = AF_INET;
ofd = b->ipv4_fd;
fd = b->ipv6_fd;
port = (u_short)GET_PORT (b->addr);
oaddr.him4.sin_family = AF_INET;
oaddr.him4.sin_port = port;
oaddr.him4.sin_addr.s_addr = INADDR_ANY;
}
rv = NET_Bind (fd, (struct sockaddr *)b->addr, SOCKETADDRESS_LEN(b->addr));
if (rv == SOCKET_ERROR) {
CLOSE_SOCKETS_AND_RETURN;
}
/* get the port and set it in the other address */
len = SOCKETADDRESS_LEN(b->addr);
if (getsockname(fd, (struct sockaddr *)b->addr, &len) == -1) {
CLOSE_SOCKETS_AND_RETURN;
}
bound_port = GET_PORT (b->addr);
SET_PORT (&oaddr, bound_port);
if ((rv=NET_Bind (ofd, (struct sockaddr *) &oaddr,
SOCKETADDRESS_LEN (&oaddr))) == SOCKET_ERROR) {
int retries;
int sotype, arglen=sizeof(sotype);
/* no retries unless, the request was for any free port */
if (port != 0) {
CLOSE_SOCKETS_AND_RETURN;
}
getsockopt(fd, SOL_SOCKET, SO_TYPE, (void *)&sotype, &arglen);
#define SOCK_RETRIES 50
/* 50 is an arbitrary limit, just to ensure that this
* cannot be an endless loop. Would expect socket creation to
* succeed sooner.
*/
for (retries = 0; retries < SOCK_RETRIES; retries ++) {
int len;
close_fd = fd; fd = -1;
close_ofd = ofd; ofd = -1;
b->ipv4_fd = SOCKET_ERROR;
b->ipv6_fd = SOCKET_ERROR;
/* create two new sockets */
fd = socket (family, sotype, 0);
if (fd == SOCKET_ERROR) {
CLOSE_SOCKETS_AND_RETURN;
}
ofd = socket (ofamily, sotype, 0);
if (ofd == SOCKET_ERROR) {
CLOSE_SOCKETS_AND_RETURN;
}
/* bind random port on first socket */
SET_PORT (&oaddr, 0);
rv = NET_Bind (ofd, (struct sockaddr *)&oaddr, SOCKETADDRESS_LEN(&oaddr));
if (rv == SOCKET_ERROR) {
CLOSE_SOCKETS_AND_RETURN;
}
/* close the original pair of sockets before continuing */
closesocket (close_fd);
closesocket (close_ofd);
close_fd = close_ofd = -1;
/* bind new port on second socket */
len = SOCKETADDRESS_LEN(&oaddr);
if (getsockname(ofd, (struct sockaddr *)&oaddr, &len) == -1) {
CLOSE_SOCKETS_AND_RETURN;
}
bound_port = GET_PORT (&oaddr);
SET_PORT (b->addr, bound_port);
rv = NET_Bind (fd, (struct sockaddr *)b->addr, SOCKETADDRESS_LEN(b->addr));
if (rv != SOCKET_ERROR) {
if (family == AF_INET) {
b->ipv4_fd = fd;
b->ipv6_fd = ofd;
} else {
b->ipv4_fd = ofd;
b->ipv6_fd = fd;
}
return 0;
}
}
CLOSE_SOCKETS_AND_RETURN;
}
return 0;
}
