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nest-open-source / nest-learning-thermostat / 5.1.7 / nspr / refs/heads/master / . / nspr-4.8.6 / mozilla / nsprpub / pr / src / io / prsocket.c
blob: 8b4ef2699567eab7e6fc78876058365efd79e320 [file] [log] [blame]
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape Portable Runtime (NSPR).
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "primpl.h"
#include <string.h>
/************************************************************************/
/* These two functions are only used in assertions. */
#if defined(DEBUG)
PRBool IsValidNetAddr(const PRNetAddr *addr)
{
if ((addr != NULL)
#if defined(XP_UNIX) || defined(XP_OS2)
&& (addr->raw.family != PR_AF_LOCAL)
#endif
&& (addr->raw.family != PR_AF_INET6)
&& (addr->raw.family != PR_AF_INET)) {
return PR_FALSE;
}
return PR_TRUE;
}
static PRBool IsValidNetAddrLen(const PRNetAddr *addr, PRInt32 addr_len)
{
/*
* The definition of the length of a Unix domain socket address
* is not uniform, so we don't check it.
*/
if ((addr != NULL)
#if defined(XP_UNIX) || defined(XP_OS2)
&& (addr->raw.family != AF_UNIX)
#endif
&& (PR_NETADDR_SIZE(addr) != addr_len)) {
#if defined(LINUX) && __GLIBC__ == 2 && __GLIBC_MINOR__ == 1
/*
* In glibc 2.1, struct sockaddr_in6 is 24 bytes. In glibc 2.2
* and in the 2.4 kernel, struct sockaddr_in6 has the scope_id
* field and is 28 bytes. It is possible for socket functions
* to return an addr_len greater than sizeof(struct sockaddr_in6).
* We need to allow that. (Bugzilla bug #77264)
*/
if ((PR_AF_INET6 == addr->raw.family)
&& (sizeof(addr->ipv6) == addr_len)) {
return PR_TRUE;
}
#endif
/*
* The accept(), getsockname(), etc. calls on some platforms
* do not set the actual socket address length on return.
* In this case, we verifiy addr_len is still the value we
* passed in (i.e., sizeof(PRNetAddr)).
*/
#if defined(QNX)
if (sizeof(PRNetAddr) == addr_len) {
return PR_TRUE;
}
#endif
return PR_FALSE;
}
return PR_TRUE;
}
#endif /* DEBUG */
static PRInt32 PR_CALLBACK SocketWritev(PRFileDesc *fd, const PRIOVec *iov,
PRInt32 iov_size, PRIntervalTime timeout)
{
PRThread *me = _PR_MD_CURRENT_THREAD();
int w = 0;
const PRIOVec *tmp_iov;
#define LOCAL_MAXIOV 8
PRIOVec local_iov[LOCAL_MAXIOV];
PRIOVec *iov_copy = NULL;
int tmp_out;
int index, iov_cnt;
int count=0, sz = 0; /* 'count' is the return value. */
if (_PR_PENDING_INTERRUPT(me)) {
me->flags &= ~_PR_INTERRUPT;
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
return -1;
}
if (_PR_IO_PENDING(me)) {
PR_SetError(PR_IO_PENDING_ERROR, 0);
return -1;
}
/*
* Assume the first writev will succeed. Copy iov's only on
* failure.
*/
tmp_iov = iov;
for (index = 0; index < iov_size; index++)
sz += iov[index].iov_len;
iov_cnt = iov_size;
while (sz > 0) {
w = _PR_MD_WRITEV(fd, tmp_iov, iov_cnt, timeout);
if (w < 0) {
count = -1;
break;
}
count += w;
if (fd->secret->nonblocking) {
break;
}
sz -= w;
if (sz > 0) {
/* find the next unwritten vector */
for ( index = 0, tmp_out = count;
tmp_out >= iov[index].iov_len;
tmp_out -= iov[index].iov_len, index++){;} /* nothing to execute */
if (tmp_iov == iov) {
/*
* The first writev failed so we
* must copy iov's around.
* Avoid calloc/free if there
* are few enough iov's.
*/
if (iov_size - index <= LOCAL_MAXIOV)
iov_copy = local_iov;
else if ((iov_copy = (PRIOVec *) PR_CALLOC((iov_size - index) *
sizeof *iov_copy)) == NULL) {
PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
return -1;
}
tmp_iov = iov_copy;
}
PR_ASSERT(tmp_iov == iov_copy);
/* fill in the first partial read */
iov_copy[0].iov_base = &(((char *)iov[index].iov_base)[tmp_out]);
iov_copy[0].iov_len = iov[index].iov_len - tmp_out;
index++;
/* copy the remaining vectors */
for (iov_cnt=1; index<iov_size; iov_cnt++, index++) {
iov_copy[iov_cnt].iov_base = iov[index].iov_base;
iov_copy[iov_cnt].iov_len = iov[index].iov_len;
}
}
}
if (iov_copy != local_iov)
PR_DELETE(iov_copy);
return count;
}
/************************************************************************/
PR_IMPLEMENT(PRFileDesc *) PR_ImportTCPSocket(PROsfd osfd)
{
PRFileDesc *fd;
if (!_pr_initialized) _PR_ImplicitInitialization();
fd = PR_AllocFileDesc(osfd, PR_GetTCPMethods());
if (fd != NULL) {
_PR_MD_MAKE_NONBLOCK(fd);
_PR_MD_INIT_FD_INHERITABLE(fd, PR_TRUE);
#ifdef _PR_NEED_SECRET_AF
/* this means we can only import IPv4 sockets here.
* but this is what the function in ptio.c does.
* We need a way to import IPv6 sockets, too.
*/
fd->secret->af = AF_INET;
#endif
} else
_PR_MD_CLOSE_SOCKET(osfd);
return(fd);
}
PR_IMPLEMENT(PRFileDesc *) PR_ImportUDPSocket(PROsfd osfd)
{
PRFileDesc *fd;
if (!_pr_initialized) _PR_ImplicitInitialization();
fd = PR_AllocFileDesc(osfd, PR_GetUDPMethods());
if (fd != NULL) {
_PR_MD_MAKE_NONBLOCK(fd);
_PR_MD_INIT_FD_INHERITABLE(fd, PR_TRUE);
} else
_PR_MD_CLOSE_SOCKET(osfd);
return(fd);
}
static const PRIOMethods* PR_GetSocketPollFdMethods(void);
PR_IMPLEMENT(PRFileDesc*) PR_CreateSocketPollFd(PROsfd osfd)
{
PRFileDesc *fd;
if (!_pr_initialized) _PR_ImplicitInitialization();
fd = _PR_Getfd();
if (fd == NULL) PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
else
{
fd->secret->md.osfd = osfd;
fd->secret->inheritable = _PR_TRI_FALSE;
fd->secret->state = _PR_FILEDESC_OPEN;
fd->methods = PR_GetSocketPollFdMethods();
}
return fd;
} /* PR_CreateSocketPollFD */
PR_IMPLEMENT(PRStatus) PR_DestroySocketPollFd(PRFileDesc *fd)
{
if (NULL == fd)
{
PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0);
return PR_FAILURE;
}
fd->secret->state = _PR_FILEDESC_CLOSED;
_PR_Putfd(fd);
return PR_SUCCESS;
} /* PR_DestroySocketPollFd */
static PRStatus PR_CALLBACK SocketConnect(
PRFileDesc *fd, const PRNetAddr *addr, PRIntervalTime timeout)
{
PRInt32 rv; /* Return value of _PR_MD_CONNECT */
const PRNetAddr *addrp = addr;
#if defined(_PR_INET6)
PRNetAddr addrCopy;
#endif
PRThread *me = _PR_MD_CURRENT_THREAD();
if (_PR_PENDING_INTERRUPT(me)) {
me->flags &= ~_PR_INTERRUPT;
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
return PR_FAILURE;
}
#if defined(_PR_INET6)
if (addr->raw.family == PR_AF_INET6) {
addrCopy = *addr;
addrCopy.raw.family = AF_INET6;
addrp = &addrCopy;
}
#endif
rv = _PR_MD_CONNECT(fd, addrp, PR_NETADDR_SIZE(addr), timeout);
PR_LOG(_pr_io_lm, PR_LOG_MAX, ("connect -> %d", rv));
if (rv == 0)
return PR_SUCCESS;
else
return PR_FAILURE;
}
static PRStatus PR_CALLBACK SocketConnectContinue(
PRFileDesc *fd, PRInt16 out_flags)
{
PROsfd osfd;
int err;
if (out_flags & PR_POLL_NVAL) {
PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0);
return PR_FAILURE;
}
if ((out_flags & (PR_POLL_WRITE | PR_POLL_EXCEPT | PR_POLL_ERR)) == 0) {
PR_ASSERT(out_flags == 0);
PR_SetError(PR_IN_PROGRESS_ERROR, 0);
return PR_FAILURE;
}
osfd = fd->secret->md.osfd;
#if defined(XP_UNIX)
err = _MD_unix_get_nonblocking_connect_error(osfd);
if (err != 0) {
_PR_MD_MAP_CONNECT_ERROR(err);
return PR_FAILURE;
}
return PR_SUCCESS;
#elif defined(WIN32) || defined(WIN16)
#if defined(WIN32)
/*
* The sleep circumvents a bug in Win32 WinSock.
* See Microsoft Knowledge Base article ID: Q165989.
*/
Sleep(0);
#endif /* WIN32 */
if (out_flags & PR_POLL_EXCEPT) {
int len = sizeof(err);
if (getsockopt(osfd, (int)SOL_SOCKET, SO_ERROR, (char *) &err, &len)
== SOCKET_ERROR) {
_PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError());
return PR_FAILURE;
}
if (err != 0) {
_PR_MD_MAP_CONNECT_ERROR(err);
} else {
PR_SetError(PR_UNKNOWN_ERROR, 0);
}
return PR_FAILURE;
}
PR_ASSERT(out_flags & PR_POLL_WRITE);
return PR_SUCCESS;
#elif defined(XP_OS2)
err = _MD_os2_get_nonblocking_connect_error(osfd);
if (err != 0) {
_PR_MD_MAP_CONNECT_ERROR(err);
return PR_FAILURE;
}
return PR_SUCCESS;
#elif defined(XP_BEOS)
#ifdef BONE_VERSION /* bug 122364 */
/* temporary workaround until getsockopt(SO_ERROR) works in BONE */
if (out_flags & PR_POLL_EXCEPT) {
PR_SetError(PR_CONNECT_REFUSED_ERROR, 0);
return PR_FAILURE;
}
PR_ASSERT(out_flags & PR_POLL_WRITE);
return PR_SUCCESS;
#else
err = _MD_beos_get_nonblocking_connect_error(fd);
if( err != 0 ) {
_PR_MD_MAP_CONNECT_ERROR(err);
return PR_FAILURE;
}
else
return PR_SUCCESS;
#endif /* BONE_VERSION */
#else
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return PR_FAILURE;
#endif
}
PR_IMPLEMENT(PRStatus) PR_GetConnectStatus(const PRPollDesc *pd)
{
/* Find the NSPR layer and invoke its connectcontinue method */
PRFileDesc *bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER);
if (NULL == bottom) {
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return PR_FAILURE;
}
return SocketConnectContinue(bottom, pd->out_flags);
}
static PRFileDesc* PR_CALLBACK SocketAccept(PRFileDesc *fd, PRNetAddr *addr,
PRIntervalTime timeout)
{
PROsfd osfd;
PRFileDesc *fd2;
PRUint32 al;
PRThread *me = _PR_MD_CURRENT_THREAD();
#ifdef WINNT
PRNetAddr addrCopy;
#endif
if (_PR_PENDING_INTERRUPT(me)) {
me->flags &= ~_PR_INTERRUPT;
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
return 0;
}
if (_PR_IO_PENDING(me)) {
PR_SetError(PR_IO_PENDING_ERROR, 0);
return 0;
}
#ifdef WINNT
if (addr == NULL) {
addr = &addrCopy;
}
#endif
al = sizeof(PRNetAddr);
osfd = _PR_MD_ACCEPT(fd, addr, &al, timeout);
if (osfd == -1)
return 0;
fd2 = PR_AllocFileDesc(osfd, PR_GetTCPMethods());
if (!fd2) {
_PR_MD_CLOSE_SOCKET(osfd);
return NULL;
}
fd2->secret->nonblocking = fd->secret->nonblocking;
fd2->secret->inheritable = fd->secret->inheritable;
#ifdef WINNT
if (!fd2->secret->nonblocking && fd2->secret->inheritable != _PR_TRI_TRUE) {
/*
* The new socket has been associated with an I/O
* completion port. There is no going back.
*/
fd2->secret->md.io_model_committed = PR_TRUE;
}
PR_ASSERT(al == PR_NETADDR_SIZE(addr));
fd2->secret->md.accepted_socket = PR_TRUE;
memcpy(&fd2->secret->md.peer_addr, addr, al);
#endif
/*
* On some platforms, the new socket created by accept()
* inherits the nonblocking (or overlapped io) attribute
* of the listening socket. As an optimization, these
* platforms can skip the following _PR_MD_MAKE_NONBLOCK
* call.
*/
#if !defined(SOLARIS) && !defined(IRIX) && !defined(WINNT)
_PR_MD_MAKE_NONBLOCK(fd2);
#endif
#ifdef _PR_INET6
if (addr && (AF_INET6 == addr->raw.family))
addr->raw.family = PR_AF_INET6;
#endif
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
PR_ASSERT(IsValidNetAddrLen(addr, al) == PR_TRUE);
return fd2;
}
#ifdef WINNT
PR_IMPLEMENT(PRFileDesc*) PR_NTFast_Accept(PRFileDesc *fd, PRNetAddr *addr,
PRIntervalTime timeout)
{
PROsfd osfd;
PRFileDesc *fd2;
PRIntn al;
PRThread *me = _PR_MD_CURRENT_THREAD();
PRNetAddr addrCopy;
if (_PR_PENDING_INTERRUPT(me)) {
me->flags &= ~_PR_INTERRUPT;
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
return 0;
}
if (_PR_IO_PENDING(me)) {
PR_SetError(PR_IO_PENDING_ERROR, 0);
return 0;
}
if (addr == NULL) {
addr = &addrCopy;
}
al = PR_NETADDR_SIZE(addr);
osfd = _PR_MD_FAST_ACCEPT(fd, addr, &al, timeout, PR_TRUE, NULL, NULL);
if (osfd == -1) {
return 0;
}
fd2 = PR_AllocFileDesc(osfd, PR_GetTCPMethods());
if (!fd2) {
_PR_MD_CLOSE_SOCKET(osfd);
} else {
fd2->secret->nonblocking = fd->secret->nonblocking;
fd2->secret->md.io_model_committed = PR_TRUE;
PR_ASSERT(al == PR_NETADDR_SIZE(addr));
fd2->secret->md.accepted_socket = PR_TRUE;
memcpy(&fd2->secret->md.peer_addr, addr, al);
#ifdef _PR_INET6
if (AF_INET6 == addr->raw.family)
addr->raw.family = PR_AF_INET6;
#endif
#ifdef _PR_NEED_SECRET_AF
fd2->secret->af = fd->secret->af;
#endif
}
return fd2;
}
#endif /* WINNT */
static PRStatus PR_CALLBACK SocketBind(PRFileDesc *fd, const PRNetAddr *addr)
{
PRInt32 result;
const PRNetAddr *addrp = addr;
#if defined(_PR_INET6)
PRNetAddr addrCopy;
#endif
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
#ifdef XP_UNIX
if (addr->raw.family == AF_UNIX) {
/* Disallow relative pathnames */
if (addr->local.path[0] != '/') {
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return PR_FAILURE;
}
}
#endif /* XP_UNIX */
#if defined(_PR_INET6)
if (addr->raw.family == PR_AF_INET6) {
addrCopy = *addr;
addrCopy.raw.family = AF_INET6;
addrp = &addrCopy;
}
#endif
result = _PR_MD_BIND(fd, addrp, PR_NETADDR_SIZE(addr));
if (result < 0) {
return PR_FAILURE;
}
return PR_SUCCESS;
}
static PRStatus PR_CALLBACK SocketListen(PRFileDesc *fd, PRIntn backlog)
{
PRInt32 result;
result = _PR_MD_LISTEN(fd, backlog);
if (result < 0) {
return PR_FAILURE;
}
return PR_SUCCESS;
}
static PRStatus PR_CALLBACK SocketShutdown(PRFileDesc *fd, PRIntn how)
{
PRInt32 result;
result = _PR_MD_SHUTDOWN(fd, how);
if (result < 0) {
return PR_FAILURE;
}
return PR_SUCCESS;
}
static PRInt32 PR_CALLBACK SocketRecv(PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags,
PRIntervalTime timeout)
{
PRInt32 rv;
PRThread *me = _PR_MD_CURRENT_THREAD();
if ((flags != 0) && (flags != PR_MSG_PEEK)) {
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return -1;
}
if (_PR_PENDING_INTERRUPT(me)) {
me->flags &= ~_PR_INTERRUPT;
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
return -1;
}
if (_PR_IO_PENDING(me)) {
PR_SetError(PR_IO_PENDING_ERROR, 0);
return -1;
}
PR_LOG(_pr_io_lm, PR_LOG_MAX,
("recv: fd=%p osfd=%" PR_PRIdOSFD " buf=%p amount=%d flags=%d",
fd, fd->secret->md.osfd, buf, amount, flags));
#ifdef _PR_HAVE_PEEK_BUFFER
if (fd->secret->peekBytes != 0) {
rv = (amount < fd->secret->peekBytes) ?
amount : fd->secret->peekBytes;
memcpy(buf, fd->secret->peekBuffer, rv);
if (flags == 0) {
/* consume the bytes in the peek buffer */
fd->secret->peekBytes -= rv;
if (fd->secret->peekBytes != 0) {
memmove(fd->secret->peekBuffer,
fd->secret->peekBuffer + rv,
fd->secret->peekBytes);
}
}
return rv;
}
/* allocate peek buffer, if necessary */
if ((PR_MSG_PEEK == flags) && _PR_FD_NEED_EMULATE_MSG_PEEK(fd)) {
PR_ASSERT(0 == fd->secret->peekBytes);
/* impose a max size on the peek buffer */
if (amount > _PR_PEEK_BUFFER_MAX) {
amount = _PR_PEEK_BUFFER_MAX;
}
if (fd->secret->peekBufSize < amount) {
if (fd->secret->peekBuffer) {
PR_Free(fd->secret->peekBuffer);
}
fd->secret->peekBufSize = amount;
fd->secret->peekBuffer = PR_Malloc(amount);
if (NULL == fd->secret->peekBuffer) {
fd->secret->peekBufSize = 0;
PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
return -1;
}
}
}
#endif
rv = _PR_MD_RECV(fd, buf, amount, flags, timeout);
PR_LOG(_pr_io_lm, PR_LOG_MAX, ("recv -> %d, error = %d, os error = %d",
rv, PR_GetError(), PR_GetOSError()));
#ifdef _PR_HAVE_PEEK_BUFFER
if ((PR_MSG_PEEK == flags) && _PR_FD_NEED_EMULATE_MSG_PEEK(fd)) {
if (rv > 0) {
memcpy(fd->secret->peekBuffer, buf, rv);
fd->secret->peekBytes = rv;
}
}
#endif
return rv;
}
static PRInt32 PR_CALLBACK SocketRead(PRFileDesc *fd, void *buf, PRInt32 amount)
{
return SocketRecv(fd, buf, amount, 0, PR_INTERVAL_NO_TIMEOUT);
}
static PRInt32 PR_CALLBACK SocketSend(PRFileDesc *fd, const void *buf, PRInt32 amount,
PRIntn flags, PRIntervalTime timeout)
{
PRInt32 temp, count;
PRThread *me = _PR_MD_CURRENT_THREAD();
if (_PR_PENDING_INTERRUPT(me)) {
me->flags &= ~_PR_INTERRUPT;
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
return -1;
}
if (_PR_IO_PENDING(me)) {
PR_SetError(PR_IO_PENDING_ERROR, 0);
return -1;
}
count = 0;
while (amount > 0) {
PR_LOG(_pr_io_lm, PR_LOG_MAX,
("send: fd=%p osfd=%" PR_PRIdOSFD " buf=%p amount=%d",
fd, fd->secret->md.osfd, buf, amount));
temp = _PR_MD_SEND(fd, buf, amount, flags, timeout);
if (temp < 0) {
count = -1;
break;
}
count += temp;
if (fd->secret->nonblocking) {
break;
}
buf = (const void*) ((const char*)buf + temp);
amount -= temp;
}
PR_LOG(_pr_io_lm, PR_LOG_MAX, ("send -> %d", count));
return count;
}
static PRInt32 PR_CALLBACK SocketWrite(PRFileDesc *fd, const void *buf, PRInt32 amount)
{
return SocketSend(fd, buf, amount, 0, PR_INTERVAL_NO_TIMEOUT);
}
static PRStatus PR_CALLBACK SocketClose(PRFileDesc *fd)
{
if (!fd || !fd->secret
|| (fd->secret->state != _PR_FILEDESC_OPEN
&& fd->secret->state != _PR_FILEDESC_CLOSED)) {
PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0);
return PR_FAILURE;
}
if (fd->secret->state == _PR_FILEDESC_OPEN) {
if (_PR_MD_CLOSE_SOCKET(fd->secret->md.osfd) < 0) {
return PR_FAILURE;
}
fd->secret->state = _PR_FILEDESC_CLOSED;
}
#ifdef _PR_HAVE_PEEK_BUFFER
if (fd->secret->peekBuffer) {
PR_ASSERT(fd->secret->peekBufSize > 0);
PR_DELETE(fd->secret->peekBuffer);
fd->secret->peekBufSize = 0;
fd->secret->peekBytes = 0;
}
#endif
PR_FreeFileDesc(fd);
return PR_SUCCESS;
}
static PRInt32 PR_CALLBACK SocketAvailable(PRFileDesc *fd)
{
PRInt32 rv;
#ifdef _PR_HAVE_PEEK_BUFFER
if (fd->secret->peekBytes != 0) {
return fd->secret->peekBytes;
}
#endif
rv = _PR_MD_SOCKETAVAILABLE(fd);
return rv;
}
static PRInt64 PR_CALLBACK SocketAvailable64(PRFileDesc *fd)
{
PRInt64 rv;
#ifdef _PR_HAVE_PEEK_BUFFER
if (fd->secret->peekBytes != 0) {
LL_I2L(rv, fd->secret->peekBytes);
return rv;
}
#endif
LL_I2L(rv, _PR_MD_SOCKETAVAILABLE(fd));
return rv;
}
static PRStatus PR_CALLBACK SocketSync(PRFileDesc *fd)
{
return PR_SUCCESS;
}
static PRInt32 PR_CALLBACK SocketSendTo(
PRFileDesc *fd, const void *buf, PRInt32 amount,
PRIntn flags, const PRNetAddr *addr, PRIntervalTime timeout)
{
PRInt32 temp, count;
const PRNetAddr *addrp = addr;
#if defined(_PR_INET6)
PRNetAddr addrCopy;
#endif
PRThread *me = _PR_MD_CURRENT_THREAD();
if (_PR_PENDING_INTERRUPT(me)) {
me->flags &= ~_PR_INTERRUPT;
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
return -1;
}
if (_PR_IO_PENDING(me)) {
PR_SetError(PR_IO_PENDING_ERROR, 0);
return -1;
}
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
#if defined(_PR_INET6)
if (addr->raw.family == PR_AF_INET6) {
addrCopy = *addr;
addrCopy.raw.family = AF_INET6;
addrp = &addrCopy;
}
#endif
count = 0;
while (amount > 0) {
temp = _PR_MD_SENDTO(fd, buf, amount, flags,
addrp, PR_NETADDR_SIZE(addr), timeout);
if (temp < 0) {
count = -1;
break;
}
count += temp;
if (fd->secret->nonblocking) {
break;
}
buf = (const void*) ((const char*)buf + temp);
amount -= temp;
}
return count;
}
static PRInt32 PR_CALLBACK SocketRecvFrom(PRFileDesc *fd, void *buf, PRInt32 amount,
PRIntn flags, PRNetAddr *addr, PRIntervalTime timeout)
{
PRInt32 rv;
PRUint32 al;
PRThread *me = _PR_MD_CURRENT_THREAD();
if (_PR_PENDING_INTERRUPT(me)) {
me->flags &= ~_PR_INTERRUPT;
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
return -1;
}
if (_PR_IO_PENDING(me)) {
PR_SetError(PR_IO_PENDING_ERROR, 0);
return -1;
}
al = sizeof(PRNetAddr);
rv = _PR_MD_RECVFROM(fd, buf, amount, flags, addr, &al, timeout);
#ifdef _PR_INET6
if (addr && (AF_INET6 == addr->raw.family))
addr->raw.family = PR_AF_INET6;
#endif
return rv;
}
static PRInt32 PR_CALLBACK SocketAcceptRead(PRFileDesc *sd, PRFileDesc **nd,
PRNetAddr **raddr, void *buf, PRInt32 amount,
PRIntervalTime timeout)
{
PRInt32 rv;
PRThread *me = _PR_MD_CURRENT_THREAD();
if (_PR_PENDING_INTERRUPT(me)) {
me->flags &= ~_PR_INTERRUPT;
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
return -1;
}
if (_PR_IO_PENDING(me)) {
PR_SetError(PR_IO_PENDING_ERROR, 0);
return -1;
}
/* The socket must be in blocking mode. */
if (sd->secret->nonblocking) {
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return -1;
}
*nd = NULL;
#if defined(WINNT)
{
PROsfd newSock;
PRNetAddr *raddrCopy;
if (raddr == NULL) {
raddr = &raddrCopy;
}
rv = _PR_MD_ACCEPT_READ(sd, &newSock, raddr, buf, amount, timeout);
if (rv < 0) {
rv = -1;
} else {
/* Successfully accepted and read; create the new PRFileDesc */
*nd = PR_AllocFileDesc(newSock, PR_GetTCPMethods());
if (*nd == 0) {
_PR_MD_CLOSE_SOCKET(newSock);
/* PR_AllocFileDesc() has invoked PR_SetError(). */
rv = -1;
} else {
(*nd)->secret->md.io_model_committed = PR_TRUE;
(*nd)->secret->md.accepted_socket = PR_TRUE;
memcpy(&(*nd)->secret->md.peer_addr, *raddr,
PR_NETADDR_SIZE(*raddr));
#ifdef _PR_INET6
if (AF_INET6 == *raddr->raw.family)
*raddr->raw.family = PR_AF_INET6;
#endif
}
}
}
#else
rv = PR_EmulateAcceptRead(sd, nd, raddr, buf, amount, timeout);
#endif
return rv;
}
#ifdef WINNT
PR_IMPLEMENT(PRInt32) PR_NTFast_AcceptRead(PRFileDesc *sd, PRFileDesc **nd,
PRNetAddr **raddr, void *buf, PRInt32 amount,
PRIntervalTime timeout)
{
PRInt32 rv;
PROsfd newSock;
PRThread *me = _PR_MD_CURRENT_THREAD();
PRNetAddr *raddrCopy;
if (_PR_PENDING_INTERRUPT(me)) {
me->flags &= ~_PR_INTERRUPT;
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
return -1;
}
if (_PR_IO_PENDING(me)) {
PR_SetError(PR_IO_PENDING_ERROR, 0);
return -1;
}
*nd = NULL;
if (raddr == NULL) {
raddr = &raddrCopy;
}
rv = _PR_MD_FAST_ACCEPT_READ(sd, &newSock, raddr, buf, amount,
timeout, PR_TRUE, NULL, NULL);
if (rv < 0) {
rv = -1;
} else {
/* Successfully accepted and read; create the new PRFileDesc */
*nd = PR_AllocFileDesc(newSock, PR_GetTCPMethods());
if (*nd == 0) {
_PR_MD_CLOSE_SOCKET(newSock);
/* PR_AllocFileDesc() has invoked PR_SetError(). */
rv = -1;
} else {
(*nd)->secret->md.io_model_committed = PR_TRUE;
(*nd)->secret->md.accepted_socket = PR_TRUE;
memcpy(&(*nd)->secret->md.peer_addr, *raddr,
PR_NETADDR_SIZE(*raddr));
#ifdef _PR_INET6
if (AF_INET6 == *raddr->raw.family)
*raddr->raw.family = PR_AF_INET6;
#endif
#ifdef _PR_NEED_SECRET_AF
(*nd)->secret->af = sd->secret->af;
#endif
}
}
return rv;
}
PR_IMPLEMENT(PRInt32) PR_NTFast_AcceptRead_WithTimeoutCallback(
PRFileDesc *sd, PRFileDesc **nd,
PRNetAddr **raddr, void *buf, PRInt32 amount,
PRIntervalTime timeout,
_PR_AcceptTimeoutCallback callback,
void *callbackArg)
{
PRInt32 rv;
PROsfd newSock;
PRThread *me = _PR_MD_CURRENT_THREAD();
PRNetAddr *raddrCopy;
if (_PR_PENDING_INTERRUPT(me)) {
me->flags &= ~_PR_INTERRUPT;
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
return -1;
}
if (_PR_IO_PENDING(me)) {
PR_SetError(PR_IO_PENDING_ERROR, 0);
return -1;
}
*nd = NULL;
if (raddr == NULL) {
raddr = &raddrCopy;
}
rv = _PR_MD_FAST_ACCEPT_READ(sd, &newSock, raddr, buf, amount,
timeout, PR_TRUE, callback, callbackArg);
if (rv < 0) {
rv = -1;
} else {
/* Successfully accepted and read; create the new PRFileDesc */
*nd = PR_AllocFileDesc(newSock, PR_GetTCPMethods());
if (*nd == 0) {
_PR_MD_CLOSE_SOCKET(newSock);
/* PR_AllocFileDesc() has invoked PR_SetError(). */
rv = -1;
} else {
(*nd)->secret->md.io_model_committed = PR_TRUE;
(*nd)->secret->md.accepted_socket = PR_TRUE;
memcpy(&(*nd)->secret->md.peer_addr, *raddr,
PR_NETADDR_SIZE(*raddr));
#ifdef _PR_INET6
if (AF_INET6 == *raddr->raw.family)
*raddr->raw.family = PR_AF_INET6;
#endif
#ifdef _PR_NEED_SECRET_AF
(*nd)->secret->af = sd->secret->af;
#endif
}
}
return rv;
}
#endif /* WINNT */
#ifdef WINNT
PR_IMPLEMENT(void)
PR_NTFast_UpdateAcceptContext(PRFileDesc *socket, PRFileDesc *acceptSocket)
{
_PR_MD_UPDATE_ACCEPT_CONTEXT(
socket->secret->md.osfd, acceptSocket->secret->md.osfd);
}
#endif /* WINNT */
static PRInt32 PR_CALLBACK SocketSendFile(
PRFileDesc *sd, PRSendFileData *sfd,
PRTransmitFileFlags flags, PRIntervalTime timeout)
{
PRInt32 rv;
PRThread *me = _PR_MD_CURRENT_THREAD();
if (_PR_PENDING_INTERRUPT(me)) {
me->flags &= ~_PR_INTERRUPT;
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
return -1;
}
if (_PR_IO_PENDING(me)) {
PR_SetError(PR_IO_PENDING_ERROR, 0);
return -1;
}
/* The socket must be in blocking mode. */
if (sd->secret->nonblocking) {
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return -1;
}
#if defined(WINNT)
rv = _PR_MD_SENDFILE(sd, sfd, flags, timeout);
if ((rv >= 0) && (flags == PR_TRANSMITFILE_CLOSE_SOCKET)) {
/*
* This should be kept the same as SocketClose, except
* that _PR_MD_CLOSE_SOCKET(sd->secret->md.osfd) should
* not be called because the socket will be recycled.
*/
PR_FreeFileDesc(sd);
}
#else
rv = PR_EmulateSendFile(sd, sfd, flags, timeout);
#endif /* WINNT */
return rv;
}
static PRInt32 PR_CALLBACK SocketTransmitFile(PRFileDesc *sd, PRFileDesc *fd,
const void *headers, PRInt32 hlen, PRTransmitFileFlags flags,
PRIntervalTime timeout)
{
PRSendFileData sfd;
sfd.fd = fd;
sfd.file_offset = 0;
sfd.file_nbytes = 0;
sfd.header = headers;
sfd.hlen = hlen;
sfd.trailer = NULL;
sfd.tlen = 0;
return(SocketSendFile(sd, &sfd, flags, timeout));
}
static PRStatus PR_CALLBACK SocketGetName(PRFileDesc *fd, PRNetAddr *addr)
{
PRInt32 result;
PRUint32 addrlen;
addrlen = sizeof(PRNetAddr);
result = _PR_MD_GETSOCKNAME(fd, addr, &addrlen);
if (result < 0) {
return PR_FAILURE;
}
#ifdef _PR_INET6
if (AF_INET6 == addr->raw.family)
addr->raw.family = PR_AF_INET6;
#endif
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
PR_ASSERT(IsValidNetAddrLen(addr, addrlen) == PR_TRUE);
return PR_SUCCESS;
}
static PRStatus PR_CALLBACK SocketGetPeerName(PRFileDesc *fd, PRNetAddr *addr)
{
PRInt32 result;
PRUint32 addrlen;
addrlen = sizeof(PRNetAddr);
result = _PR_MD_GETPEERNAME(fd, addr, &addrlen);
if (result < 0) {
return PR_FAILURE;
}
#ifdef _PR_INET6
if (AF_INET6 == addr->raw.family)
addr->raw.family = PR_AF_INET6;
#endif
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
PR_ASSERT(IsValidNetAddrLen(addr, addrlen) == PR_TRUE);
return PR_SUCCESS;
}
static PRInt16 PR_CALLBACK SocketPoll(
PRFileDesc *fd, PRInt16 in_flags, PRInt16 *out_flags)
{
*out_flags = 0;
return in_flags;
} /* SocketPoll */
static PRIOMethods tcpMethods = {
PR_DESC_SOCKET_TCP,
SocketClose,
SocketRead,
SocketWrite,
SocketAvailable,
SocketAvailable64,
SocketSync,
(PRSeekFN)_PR_InvalidInt,
(PRSeek64FN)_PR_InvalidInt64,
(PRFileInfoFN)_PR_InvalidStatus,
(PRFileInfo64FN)_PR_InvalidStatus,
SocketWritev,
SocketConnect,
SocketAccept,
SocketBind,
SocketListen,
SocketShutdown,
SocketRecv,
SocketSend,
(PRRecvfromFN)_PR_InvalidInt,
(PRSendtoFN)_PR_InvalidInt,
SocketPoll,
SocketAcceptRead,
SocketTransmitFile,
SocketGetName,
SocketGetPeerName,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
_PR_SocketGetSocketOption,
_PR_SocketSetSocketOption,
SocketSendFile,
SocketConnectContinue,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt
};
static PRIOMethods udpMethods = {
PR_DESC_SOCKET_UDP,
SocketClose,
SocketRead,
SocketWrite,
SocketAvailable,
SocketAvailable64,
SocketSync,
(PRSeekFN)_PR_InvalidInt,
(PRSeek64FN)_PR_InvalidInt64,
(PRFileInfoFN)_PR_InvalidStatus,
(PRFileInfo64FN)_PR_InvalidStatus,
SocketWritev,
SocketConnect,
(PRAcceptFN)_PR_InvalidDesc,
SocketBind,
SocketListen,
SocketShutdown,
SocketRecv,
SocketSend,
SocketRecvFrom,
SocketSendTo,
SocketPoll,
(PRAcceptreadFN)_PR_InvalidInt,
(PRTransmitfileFN)_PR_InvalidInt,
SocketGetName,
SocketGetPeerName,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
_PR_SocketGetSocketOption,
_PR_SocketSetSocketOption,
(PRSendfileFN)_PR_InvalidInt,
(PRConnectcontinueFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt
};
static PRIOMethods socketpollfdMethods = {
(PRDescType) 0,
(PRCloseFN)_PR_InvalidStatus,
(PRReadFN)_PR_InvalidInt,
(PRWriteFN)_PR_InvalidInt,
(PRAvailableFN)_PR_InvalidInt,
(PRAvailable64FN)_PR_InvalidInt64,
(PRFsyncFN)_PR_InvalidStatus,
(PRSeekFN)_PR_InvalidInt,
(PRSeek64FN)_PR_InvalidInt64,
(PRFileInfoFN)_PR_InvalidStatus,
(PRFileInfo64FN)_PR_InvalidStatus,
(PRWritevFN)_PR_InvalidInt,
(PRConnectFN)_PR_InvalidStatus,
(PRAcceptFN)_PR_InvalidDesc,
(PRBindFN)_PR_InvalidStatus,
(PRListenFN)_PR_InvalidStatus,
(PRShutdownFN)_PR_InvalidStatus,
(PRRecvFN)_PR_InvalidInt,
(PRSendFN)_PR_InvalidInt,
(PRRecvfromFN)_PR_InvalidInt,
(PRSendtoFN)_PR_InvalidInt,
SocketPoll,
(PRAcceptreadFN)_PR_InvalidInt,
(PRTransmitfileFN)_PR_InvalidInt,
(PRGetsocknameFN)_PR_InvalidStatus,
(PRGetpeernameFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRGetsocketoptionFN)_PR_InvalidStatus,
(PRSetsocketoptionFN)_PR_InvalidStatus,
(PRSendfileFN)_PR_InvalidInt,
(PRConnectcontinueFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt
};
PR_IMPLEMENT(const PRIOMethods*) PR_GetTCPMethods()
{
return &tcpMethods;
}
PR_IMPLEMENT(const PRIOMethods*) PR_GetUDPMethods()
{
return &udpMethods;
}
static const PRIOMethods* PR_GetSocketPollFdMethods()
{
return &socketpollfdMethods;
} /* PR_GetSocketPollFdMethods */
#if !defined(_PR_INET6) || defined(_PR_INET6_PROBE)
PR_EXTERN(PRStatus) _pr_push_ipv6toipv4_layer(PRFileDesc *fd);
#if defined(_PR_INET6_PROBE)
extern PRBool _pr_ipv6_is_present(void);
PR_IMPLEMENT(PRBool) _pr_test_ipv6_socket()
{
PROsfd osfd;
osfd = _PR_MD_SOCKET(AF_INET6, SOCK_STREAM, 0);
if (osfd != -1) {
_PR_MD_CLOSE_SOCKET(osfd);
return PR_TRUE;
}
return PR_FALSE;
}
#endif /* _PR_INET6_PROBE */
#endif
PR_IMPLEMENT(PRFileDesc*) PR_Socket(PRInt32 domain, PRInt32 type, PRInt32 proto)
{
PROsfd osfd;
PRFileDesc *fd;
PRInt32 tmp_domain = domain;
if (!_pr_initialized) _PR_ImplicitInitialization();
if (PR_AF_INET != domain
&& PR_AF_INET6 != domain
#if defined(XP_UNIX) || defined(XP_OS2)
&& PR_AF_LOCAL != domain
#endif
) {
PR_SetError(PR_ADDRESS_NOT_SUPPORTED_ERROR, 0);
return NULL;
}
#if defined(_PR_INET6_PROBE)
if (PR_AF_INET6 == domain)
domain = _pr_ipv6_is_present() ? AF_INET6 : AF_INET;
#elif defined(_PR_INET6)
if (PR_AF_INET6 == domain)
domain = AF_INET6;
#else
if (PR_AF_INET6 == domain)
domain = AF_INET;
#endif /* _PR_INET6 */
osfd = _PR_MD_SOCKET(domain, type, proto);
if (osfd == -1) {
return 0;
}
if (type == SOCK_STREAM)
fd = PR_AllocFileDesc(osfd, PR_GetTCPMethods());
else
fd = PR_AllocFileDesc(osfd, PR_GetUDPMethods());
/*
* Make the sockets non-blocking
*/
if (fd != NULL) {
_PR_MD_MAKE_NONBLOCK(fd);
_PR_MD_INIT_FD_INHERITABLE(fd, PR_FALSE);
#ifdef _PR_NEED_SECRET_AF
fd->secret->af = domain;
#endif
#if defined(_PR_INET6_PROBE) || !defined(_PR_INET6)
/*
* For platforms with no support for IPv6
* create layered socket for IPv4-mapped IPv6 addresses
*/
if (PR_AF_INET6 == tmp_domain && PR_AF_INET == domain) {
if (PR_FAILURE == _pr_push_ipv6toipv4_layer(fd)) {
PR_Close(fd);
fd = NULL;
}
}
#endif
} else
_PR_MD_CLOSE_SOCKET(osfd);
return fd;
}
PR_IMPLEMENT(PRFileDesc *) PR_NewTCPSocket(void)
{
PRInt32 domain = AF_INET;
return PR_Socket(domain, SOCK_STREAM, 0);
}
PR_IMPLEMENT(PRFileDesc*) PR_NewUDPSocket(void)
{
PRInt32 domain = AF_INET;
return PR_Socket(domain, SOCK_DGRAM, 0);
}
PR_IMPLEMENT(PRFileDesc *) PR_OpenTCPSocket(PRIntn af)
{
return PR_Socket(af, SOCK_STREAM, 0);
}
PR_IMPLEMENT(PRFileDesc*) PR_OpenUDPSocket(PRIntn af)
{
return PR_Socket(af, SOCK_DGRAM, 0);
}
PR_IMPLEMENT(PRStatus) PR_NewTCPSocketPair(PRFileDesc *f[])
{
#ifdef XP_UNIX
PRInt32 rv, osfd[2];
if (!_pr_initialized) _PR_ImplicitInitialization();
rv = _PR_MD_SOCKETPAIR(AF_UNIX, SOCK_STREAM, 0, osfd);
if (rv == -1) {
return PR_FAILURE;
}
f[0] = PR_AllocFileDesc(osfd[0], PR_GetTCPMethods());
if (!f[0]) {
_PR_MD_CLOSE_SOCKET(osfd[0]);
_PR_MD_CLOSE_SOCKET(osfd[1]);
/* PR_AllocFileDesc() has invoked PR_SetError(). */
return PR_FAILURE;
}
f[1] = PR_AllocFileDesc(osfd[1], PR_GetTCPMethods());
if (!f[1]) {
PR_Close(f[0]);
_PR_MD_CLOSE_SOCKET(osfd[1]);
/* PR_AllocFileDesc() has invoked PR_SetError(). */
return PR_FAILURE;
}
_PR_MD_MAKE_NONBLOCK(f[0]);
_PR_MD_INIT_FD_INHERITABLE(f[0], PR_FALSE);
_PR_MD_MAKE_NONBLOCK(f[1]);
_PR_MD_INIT_FD_INHERITABLE(f[1], PR_FALSE);
return PR_SUCCESS;
#elif defined(WINNT)
/*
* A socket pair is often used for interprocess communication,
* so we need to make sure neither socket is associated with
* the I/O completion port; otherwise it can't be used by a
* child process.
*
* The default implementation below cannot be used for NT
* because PR_Accept would have associated the I/O completion
* port with the listening and accepted sockets.
*/
SOCKET listenSock;
SOCKET osfd[2];
struct sockaddr_in selfAddr, peerAddr;
int addrLen;
if (!_pr_initialized) _PR_ImplicitInitialization();
osfd[0] = osfd[1] = INVALID_SOCKET;
listenSock = socket(AF_INET, SOCK_STREAM, 0);
if (listenSock == INVALID_SOCKET) {
goto failed;
}
selfAddr.sin_family = AF_INET;
selfAddr.sin_port = 0;
selfAddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); /* BugZilla: 35408 */
addrLen = sizeof(selfAddr);
if (bind(listenSock, (struct sockaddr *) &selfAddr,
addrLen) == SOCKET_ERROR) {
goto failed;
}
if (getsockname(listenSock, (struct sockaddr *) &selfAddr,
&addrLen) == SOCKET_ERROR) {
goto failed;
}
if (listen(listenSock, 5) == SOCKET_ERROR) {
goto failed;
}
osfd[0] = socket(AF_INET, SOCK_STREAM, 0);
if (osfd[0] == INVALID_SOCKET) {
goto failed;
}
selfAddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
/*
* Only a thread is used to do the connect and accept.
* I am relying on the fact that connect returns
* successfully as soon as the connect request is put
* into the listen queue (but before accept is called).
* This is the behavior of the BSD socket code. If
* connect does not return until accept is called, we
* will need to create another thread to call connect.
*/
if (connect(osfd[0], (struct sockaddr *) &selfAddr,
addrLen) == SOCKET_ERROR) {
goto failed;
}
/*
* A malicious local process may connect to the listening
* socket, so we need to verify that the accepted connection
* is made from our own socket osfd[0].
*/
if (getsockname(osfd[0], (struct sockaddr *) &selfAddr,
&addrLen) == SOCKET_ERROR) {
goto failed;
}
osfd[1] = accept(listenSock, (struct sockaddr *) &peerAddr, &addrLen);
if (osfd[1] == INVALID_SOCKET) {
goto failed;
}
if (peerAddr.sin_port != selfAddr.sin_port) {
/* the connection we accepted is not from osfd[0] */
PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, 0);
goto failed;
}
closesocket(listenSock);
f[0] = PR_AllocFileDesc(osfd[0], PR_GetTCPMethods());
if (!f[0]) {
closesocket(osfd[0]);
closesocket(osfd[1]);
/* PR_AllocFileDesc() has invoked PR_SetError(). */
return PR_FAILURE;
}
f[1] = PR_AllocFileDesc(osfd[1], PR_GetTCPMethods());
if (!f[1]) {
PR_Close(f[0]);
closesocket(osfd[1]);
/* PR_AllocFileDesc() has invoked PR_SetError(). */
return PR_FAILURE;
}
_PR_MD_INIT_FD_INHERITABLE(f[0], PR_FALSE);
_PR_MD_INIT_FD_INHERITABLE(f[1], PR_FALSE);
return PR_SUCCESS;
failed:
if (listenSock != INVALID_SOCKET) {
closesocket(listenSock);
}
if (osfd[0] != INVALID_SOCKET) {
closesocket(osfd[0]);
}
if (osfd[1] != INVALID_SOCKET) {
closesocket(osfd[1]);
}
return PR_FAILURE;
#else /* not Unix or NT */
/*
* default implementation
*/
PRFileDesc *listenSock;
PRNetAddr selfAddr, peerAddr;
PRUint16 port;
f[0] = f[1] = NULL;
listenSock = PR_NewTCPSocket();
if (listenSock == NULL) {
goto failed;
}
PR_InitializeNetAddr(PR_IpAddrLoopback, 0, &selfAddr); /* BugZilla: 35408 */
if (PR_Bind(listenSock, &selfAddr) == PR_FAILURE) {
goto failed;
}
if (PR_GetSockName(listenSock, &selfAddr) == PR_FAILURE) {
goto failed;
}
port = ntohs(selfAddr.inet.port);
if (PR_Listen(listenSock, 5) == PR_FAILURE) {
goto failed;
}
f[0] = PR_NewTCPSocket();
if (f[0] == NULL) {
goto failed;
}
#ifdef _PR_CONNECT_DOES_NOT_BIND
/*
* If connect does not implicitly bind the socket (e.g., on
* BeOS), we have to bind the socket so that we can get its
* port with getsockname later.
*/
PR_InitializeNetAddr(PR_IpAddrLoopback, 0, &selfAddr);
if (PR_Bind(f[0], &selfAddr) == PR_FAILURE) {
goto failed;
}
#endif
PR_InitializeNetAddr(PR_IpAddrLoopback, port, &selfAddr);
/*
* Only a thread is used to do the connect and accept.
* I am relying on the fact that PR_Connect returns
* successfully as soon as the connect request is put
* into the listen queue (but before PR_Accept is called).
* This is the behavior of the BSD socket code. If
* connect does not return until accept is called, we
* will need to create another thread to call connect.
*/
if (PR_Connect(f[0], &selfAddr, PR_INTERVAL_NO_TIMEOUT)
== PR_FAILURE) {
goto failed;
}
/*
* A malicious local process may connect to the listening
* socket, so we need to verify that the accepted connection
* is made from our own socket f[0].
*/
if (PR_GetSockName(f[0], &selfAddr) == PR_FAILURE) {
goto failed;
}
f[1] = PR_Accept(listenSock, &peerAddr, PR_INTERVAL_NO_TIMEOUT);
if (f[1] == NULL) {
goto failed;
}
if (peerAddr.inet.port != selfAddr.inet.port) {
/* the connection we accepted is not from f[0] */
PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, 0);
goto failed;
}
PR_Close(listenSock);
return PR_SUCCESS;
failed:
if (listenSock) {
PR_Close(listenSock);
}
if (f[0]) {
PR_Close(f[0]);
}
if (f[1]) {
PR_Close(f[1]);
}
return PR_FAILURE;
#endif
}
PR_IMPLEMENT(PROsfd)
PR_FileDesc2NativeHandle(PRFileDesc *fd)
{
if (fd) {
fd = PR_GetIdentitiesLayer(fd, PR_NSPR_IO_LAYER);
}
if (!fd) {
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return -1;
}
return fd->secret->md.osfd;
}
PR_IMPLEMENT(void)
PR_ChangeFileDescNativeHandle(PRFileDesc *fd, PROsfd handle)
{
if (fd)
fd->secret->md.osfd = handle;
}
/*
** Select compatibility
**
*/
PR_IMPLEMENT(void) PR_FD_ZERO(PR_fd_set *set)
{
memset(set, 0, sizeof(PR_fd_set));
}
PR_IMPLEMENT(void) PR_FD_SET(PRFileDesc *fh, PR_fd_set *set)
{
PR_ASSERT( set->hsize < PR_MAX_SELECT_DESC );
set->harray[set->hsize++] = fh;
}
PR_IMPLEMENT(void) PR_FD_CLR(PRFileDesc *fh, PR_fd_set *set)
{
PRUint32 index, index2;
for (index = 0; index<set->hsize; index++)
if (set->harray[index] == fh) {
for (index2=index; index2 < (set->hsize-1); index2++) {
set->harray[index2] = set->harray[index2+1];
}
set->hsize--;
break;
}
}
PR_IMPLEMENT(PRInt32) PR_FD_ISSET(PRFileDesc *fh, PR_fd_set *set)
{
PRUint32 index;
for (index = 0; index<set->hsize; index++)
if (set->harray[index] == fh) {
return 1;
}
return 0;
}
PR_IMPLEMENT(void) PR_FD_NSET(PROsfd fd, PR_fd_set *set)
{
PR_ASSERT( set->nsize < PR_MAX_SELECT_DESC );
set->narray[set->nsize++] = fd;
}
PR_IMPLEMENT(void) PR_FD_NCLR(PROsfd fd, PR_fd_set *set)
{
PRUint32 index, index2;
for (index = 0; index<set->nsize; index++)
if (set->narray[index] == fd) {
for (index2=index; index2 < (set->nsize-1); index2++) {
set->narray[index2] = set->narray[index2+1];
}
set->nsize--;
break;
}
}
PR_IMPLEMENT(PRInt32) PR_FD_NISSET(PROsfd fd, PR_fd_set *set)
{
PRUint32 index;
for (index = 0; index<set->nsize; index++)
if (set->narray[index] == fd) {
return 1;
}
return 0;
}
#if !defined(NEED_SELECT)
#include "obsolete/probslet.h"
#define PD_INCR 20
static PRPollDesc *_pr_setfd(
PR_fd_set *set, PRInt16 flags, PRPollDesc *polldesc)
{
PRUintn fsidx, pdidx;
PRPollDesc *poll = polldesc;
if (NULL == set) return poll;
/* First set the pr file handle osfds */
for (fsidx = 0; fsidx < set->hsize; fsidx++)
{
for (pdidx = 0; 1; pdidx++)
{
if ((PRFileDesc*)-1 == poll[pdidx].fd)
{
/* our vector is full - extend and condition it */
poll = (PRPollDesc*)PR_Realloc(
poll, (pdidx + 1 + PD_INCR) * sizeof(PRPollDesc));
if (NULL == poll) goto out_of_memory;
memset(
poll + pdidx * sizeof(PRPollDesc),
0, PD_INCR * sizeof(PRPollDesc));
poll[pdidx + PD_INCR].fd = (PRFileDesc*)-1;
}
if ((NULL == poll[pdidx].fd)
|| (poll[pdidx].fd == set->harray[fsidx]))
{
/* PR_ASSERT(0 == (poll[pdidx].in_flags & flags)); */
/* either empty or prevously defined */
poll[pdidx].fd = set->harray[fsidx]; /* possibly redundant */
poll[pdidx].in_flags |= flags; /* possibly redundant */
break;
}
}
}
#if 0
/* Second set the native osfds */
for (fsidx = 0; fsidx < set->nsize; fsidx++)
{
for (pdidx = 0; ((PRFileDesc*)-1 != poll[pdidx].fd); pdidx++)
{
if ((PRFileDesc*)-1 == poll[pdidx].fd)
{
/* our vector is full - extend and condition it */
poll = PR_Realloc(
poll, (pdidx + PD_INCR) * sizeof(PRPollDesc));
if (NULL == poll) goto out_of_memory;
memset(
poll + pdidx * sizeof(PRPollDesc),
0, PD_INCR * sizeof(PRPollDesc));
poll[(pdidx + PD_INCR)].fd = (PRFileDesc*)-1;
}
if ((NULL == poll[pdidx].fd)
|| (poll[pdidx].fd == set->narray[fsidx]))
{
/* either empty or prevously defined */
poll[pdidx].fd = set->narray[fsidx];
PR_ASSERT(0 == (poll[pdidx].in_flags & flags));
poll[pdidx].in_flags |= flags;
break;
}
}
}
#endif /* 0 */
return poll;
out_of_memory:
if (NULL != polldesc) PR_DELETE(polldesc);
return NULL;
} /* _pr_setfd */
#endif /* !defined(NEED_SELECT) */
PR_IMPLEMENT(PRInt32) PR_Select(
PRInt32 unused, PR_fd_set *pr_rd, PR_fd_set *pr_wr,
PR_fd_set *pr_ex, PRIntervalTime timeout)
{
#if !defined(NEED_SELECT)
PRInt32 npds = 0;
/*
** Find out how many fds are represented in the three lists.
** Then allocate a polling descriptor for the logical union
** (there can't be any overlapping) and call PR_Poll().
*/
PRPollDesc *copy, *poll;
static PRBool warning = PR_TRUE;
if (warning) warning = _PR_Obsolete( "PR_Select()", "PR_Poll()");
/* try to get an initial guesss at how much space we need */
npds = 0;
if ((NULL != pr_rd) && ((pr_rd->hsize + pr_rd->nsize - npds) > 0))
npds = pr_rd->hsize + pr_rd->nsize;
if ((NULL != pr_wr) && ((pr_wr->hsize + pr_wr->nsize - npds) > 0))
npds = pr_wr->hsize + pr_wr->nsize;
if ((NULL != pr_ex) && ((pr_ex->hsize + pr_ex->nsize - npds) > 0))
npds = pr_ex->hsize + pr_ex->nsize;
if (0 == npds)
{
PR_Sleep(timeout);
return 0;
}
copy = poll = (PRPollDesc*)PR_Calloc(npds + PD_INCR, sizeof(PRPollDesc));
if (NULL == poll) goto out_of_memory;
poll[npds + PD_INCR - 1].fd = (PRFileDesc*)-1;
poll = _pr_setfd(pr_rd, PR_POLL_READ, poll);
if (NULL == poll) goto out_of_memory;
poll = _pr_setfd(pr_wr, PR_POLL_WRITE, poll);
if (NULL == poll) goto out_of_memory;
poll = _pr_setfd(pr_ex, PR_POLL_EXCEPT, poll);
if (NULL == poll) goto out_of_memory;
unused = 0;
while (NULL != poll[unused].fd && (PRFileDesc*)-1 != poll[unused].fd)
{
++unused;
}
PR_ASSERT(unused > 0);
npds = PR_Poll(poll, unused, timeout);
if (npds > 0)
{
/* Copy the results back into the fd sets */
if (NULL != pr_rd) pr_rd->nsize = pr_rd->hsize = 0;
if (NULL != pr_wr) pr_wr->nsize = pr_wr->hsize = 0;
if (NULL != pr_ex) pr_ex->nsize = pr_ex->hsize = 0;
for (copy = &poll[unused - 1]; copy >= poll; --copy)
{
if (copy->out_flags & PR_POLL_NVAL)
{
PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0);
npds = -1;
break;
}
if (copy->out_flags & PR_POLL_READ)
if (NULL != pr_rd) pr_rd->harray[pr_rd->hsize++] = copy->fd;
if (copy->out_flags & PR_POLL_WRITE)
if (NULL != pr_wr) pr_wr->harray[pr_wr->hsize++] = copy->fd;
if (copy->out_flags & PR_POLL_EXCEPT)
if (NULL != pr_ex) pr_ex->harray[pr_ex->hsize++] = copy->fd;
}
}
PR_DELETE(poll);
return npds;
out_of_memory:
PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
return -1;
#endif /* !defined(NEED_SELECT) */
}