diff options
Diffstat (limited to 'nsprpub/pr/src/md/windows/w95sock.c')
| -rw-r--r-- | nsprpub/pr/src/md/windows/w95sock.c | 669 |
1 files changed, 669 insertions, 0 deletions
diff --git a/nsprpub/pr/src/md/windows/w95sock.c b/nsprpub/pr/src/md/windows/w95sock.c new file mode 100644 index 000000000..1c3ddd911 --- /dev/null +++ b/nsprpub/pr/src/md/windows/w95sock.c @@ -0,0 +1,669 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* Win95 Sockets module + * + */ + +#include "primpl.h" + +#define READ_FD 1 +#define WRITE_FD 2 +#define CONNECT_FD 3 + +static PRInt32 socket_io_wait( + PROsfd osfd, + PRInt32 fd_type, + PRIntervalTime timeout); + + +/* --- SOCKET IO --------------------------------------------------------- */ + +static PRBool socketFixInet6RcvBuf = PR_FALSE; + +void _PR_MD_InitSockets(void) +{ + OSVERSIONINFO osvi; + + memset(&osvi, 0, sizeof(osvi)); + osvi.dwOSVersionInfoSize = sizeof(osvi); + GetVersionEx(&osvi); + + if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1) + { + /* if Windows XP (32-bit) */ + socketFixInet6RcvBuf = PR_TRUE; + } +} + +void _PR_MD_CleanupSockets(void) +{ + socketFixInet6RcvBuf = PR_FALSE; +} + +PROsfd +_PR_MD_SOCKET(int af, int type, int flags) +{ + SOCKET sock; + u_long one = 1; + + sock = socket(af, type, flags); + + if (sock == INVALID_SOCKET ) + { + _PR_MD_MAP_SOCKET_ERROR(WSAGetLastError()); + return (PROsfd)sock; + } + + /* + ** Make the socket Non-Blocking + */ + if (ioctlsocket( sock, FIONBIO, &one) != 0) + { + PR_SetError(PR_UNKNOWN_ERROR, WSAGetLastError()); + closesocket(sock); + return -1; + } + + if (af == AF_INET6 && socketFixInet6RcvBuf) + { + int bufsize; + int len = sizeof(bufsize); + int rv; + + /* Windows XP 32-bit returns an error on getpeername() for AF_INET6 + * sockets if the receive buffer size is greater than 65535 before + * the connection is initiated. The default receive buffer size may + * be 128000 so fix it here to always be <= 65535. See bug 513659 + * and IBM DB2 support technote "Receive/Send IPv6 Socket Size + * Problem in Windows XP SP2 & SP3". + */ + rv = getsockopt(sock, SOL_SOCKET, SO_RCVBUF, (char*)&bufsize, &len); + if (rv == 0 && bufsize > 65535) + { + bufsize = 65535; + setsockopt(sock, SOL_SOCKET, SO_RCVBUF, (char*)&bufsize, len); + } + } + + return (PROsfd)sock; +} + +/* +** _MD_CloseSocket() -- Close a socket +** +*/ +PRInt32 +_MD_CloseSocket(PROsfd osfd) +{ + PRInt32 rv; + + rv = closesocket((SOCKET) osfd ); + if (rv < 0) + _PR_MD_MAP_CLOSE_ERROR(WSAGetLastError()); + + return rv; +} + +PRInt32 +_MD_SocketAvailable(PRFileDesc *fd) +{ + PRInt32 result; + + if (ioctlsocket(fd->secret->md.osfd, FIONREAD, &result) < 0) { + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, WSAGetLastError()); + return -1; + } + return result; +} + +PROsfd _MD_Accept( + PRFileDesc *fd, + PRNetAddr *raddr, + PRUint32 *rlen, + PRIntervalTime timeout ) +{ + PROsfd osfd = fd->secret->md.osfd; + SOCKET sock; + PRInt32 rv, err; + + while ((sock = accept(osfd, (struct sockaddr *) raddr, rlen)) == -1) + { + err = WSAGetLastError(); + if ((err == WSAEWOULDBLOCK) && (!fd->secret->nonblocking)) + { + if ((rv = socket_io_wait(osfd, READ_FD, timeout)) < 0) + { + break; + } + } + else + { + _PR_MD_MAP_ACCEPT_ERROR(err); + break; + } + } + return(sock); +} /* end _MD_accept() */ + +PRInt32 +_PR_MD_CONNECT(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen, + PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv; + int err; + + if ((rv = connect(osfd, (struct sockaddr *) addr, addrlen)) == -1) + { + err = WSAGetLastError(); + if ((!fd->secret->nonblocking) && (err == WSAEWOULDBLOCK)) + { + rv = socket_io_wait(osfd, CONNECT_FD, timeout); + if ( rv < 0 ) + { + return(-1); + } + else + { + PR_ASSERT(rv > 0); + /* it's connected */ + return(0); + } + } + _PR_MD_MAP_CONNECT_ERROR(err); + } + return rv; +} + +PRInt32 +_PR_MD_BIND(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen) +{ + PRInt32 rv; + + rv = bind(fd->secret->md.osfd, (const struct sockaddr *)&(addr->inet), addrlen); + + if (rv == SOCKET_ERROR) { + _PR_MD_MAP_BIND_ERROR(WSAGetLastError()); + return -1; + } + + return 0; +} + +PRInt32 +_PR_MD_LISTEN(PRFileDesc *fd, PRIntn backlog) +{ + PRInt32 rv; + + rv = listen(fd->secret->md.osfd, backlog); + + if (rv == SOCKET_ERROR) { + _PR_MD_MAP_DEFAULT_ERROR(WSAGetLastError()); + return -1; + } + + return 0; +} + +PRInt32 +_PR_MD_RECV(PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags, + PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + int osflags; + + if (0 == flags) { + osflags = 0; + } else { + PR_ASSERT(PR_MSG_PEEK == flags); + osflags = MSG_PEEK; + } + while ((rv = recv( osfd, buf, amount, osflags)) == -1) + { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) + { + rv = socket_io_wait(osfd, READ_FD, timeout); + if ( rv < 0 ) + { + return -1; + } + } + else + { + _PR_MD_MAP_RECV_ERROR(err); + break; + } + } /* end while() */ + return(rv); +} + +PRInt32 +_PR_MD_SEND(PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags, + PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRInt32 bytesSent = 0; + + while(bytesSent < amount ) + { + while ((rv = send( osfd, buf, amount, 0 )) == -1) + { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) + { + rv = socket_io_wait(osfd, WRITE_FD, timeout); + if ( rv < 0 ) + { + return -1; + } + } + else + { + _PR_MD_MAP_SEND_ERROR(err); + return -1; + } + } + bytesSent += rv; + if (fd->secret->nonblocking) + { + break; + } + if (bytesSent < amount) + { + rv = socket_io_wait(osfd, WRITE_FD, timeout); + if ( rv < 0 ) + { + return -1; + } + } + } + return bytesSent; +} + +PRInt32 +_PR_MD_SENDTO(PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags, + const PRNetAddr *addr, PRUint32 addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRInt32 bytesSent = 0; + + while(bytesSent < amount) + { + while ((rv = sendto( osfd, buf, amount, 0, (struct sockaddr *) addr, + addrlen)) == -1) + { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) + { + rv = socket_io_wait(osfd, WRITE_FD, timeout); + if ( rv < 0 ) + { + return -1; + } + } + else + { + _PR_MD_MAP_SENDTO_ERROR(err); + return -1; + } + } + bytesSent += rv; + if (fd->secret->nonblocking) + { + break; + } + if (bytesSent < amount) + { + rv = socket_io_wait(osfd, WRITE_FD, timeout); + if (rv < 0) + { + return -1; + } + } + } + return bytesSent; +} + +PRInt32 +_PR_MD_RECVFROM(PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags, + PRNetAddr *addr, PRUint32 *addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + + while ((rv = recvfrom( osfd, buf, amount, 0, (struct sockaddr *) addr, + addrlen)) == -1) + { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) + { + rv = socket_io_wait(osfd, READ_FD, timeout); + if ( rv < 0) + { + return -1; + } + } + else + { + _PR_MD_MAP_RECVFROM_ERROR(err); + break; + } + } + return(rv); +} + +PRInt32 +_PR_MD_WRITEV(PRFileDesc *fd, const PRIOVec *iov, PRInt32 iov_size, PRIntervalTime timeout) +{ + int index; + int sent = 0; + int rv; + + for (index=0; index < iov_size; index++) + { + rv = _PR_MD_SEND(fd, iov[index].iov_base, iov[index].iov_len, 0, timeout); + if (rv > 0) + sent += rv; + if ( rv != iov[index].iov_len ) + { + if (rv < 0) + { + if (fd->secret->nonblocking + && (PR_GetError() == PR_WOULD_BLOCK_ERROR) + && (sent > 0)) + { + return sent; + } + else + { + return -1; + } + } + /* Only a nonblocking socket can have partial sends */ + PR_ASSERT(fd->secret->nonblocking); + return sent; + } + } + return sent; +} + +PRInt32 +_PR_MD_SHUTDOWN(PRFileDesc *fd, PRIntn how) +{ +PRInt32 rv; + + rv = shutdown(fd->secret->md.osfd, how); + if (rv < 0) + _PR_MD_MAP_SHUTDOWN_ERROR(WSAGetLastError()); + return rv; +} + +PRStatus +_PR_MD_GETSOCKNAME(PRFileDesc *fd, PRNetAddr *addr, PRUint32 *len) +{ + PRInt32 rv; + + rv = getsockname((SOCKET)fd->secret->md.osfd, (struct sockaddr *)addr, len); + if (rv==0) { + return PR_SUCCESS; + } else { + _PR_MD_MAP_GETSOCKNAME_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +PRStatus +_PR_MD_GETPEERNAME(PRFileDesc *fd, PRNetAddr *addr, PRUint32 *len) +{ + PRInt32 rv; + + rv = getpeername((SOCKET)fd->secret->md.osfd, (struct sockaddr *)addr, len); + if (rv==0) { + return PR_SUCCESS; + } else { + _PR_MD_MAP_GETPEERNAME_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +PRStatus +_PR_MD_GETSOCKOPT(PRFileDesc *fd, PRInt32 level, PRInt32 optname, char* optval, PRInt32* optlen) +{ + PRInt32 rv; + + rv = getsockopt((SOCKET)fd->secret->md.osfd, level, optname, optval, optlen); + if (rv==0) { + return PR_SUCCESS; + } else { + _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +PRStatus +_PR_MD_SETSOCKOPT(PRFileDesc *fd, PRInt32 level, PRInt32 optname, const char* optval, PRInt32 optlen) +{ + PRInt32 rv; + + rv = setsockopt((SOCKET)fd->secret->md.osfd, level, optname, optval, optlen); + if (rv==0) { + return PR_SUCCESS; + } else { + _PR_MD_MAP_SETSOCKOPT_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +void +_MD_MakeNonblock(PRFileDesc *f) +{ + return; /* do nothing */ +} + + + +/* + * socket_io_wait -- + * + * Wait for socket i/o, periodically checking for interrupt. + * + * This function returns 1 on success. On failure, it returns + * -1 and sets the error codes. It never returns 0. + */ +#define _PR_INTERRUPT_CHECK_INTERVAL_SECS 5 + +static PRInt32 socket_io_wait( + PROsfd osfd, + PRInt32 fd_type, + PRIntervalTime timeout) +{ + PRInt32 rv = -1; + struct timeval tv; + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRIntervalTime elapsed, remaining; + PRBool wait_for_remaining; + fd_set rd_wr, ex; + int err, len; + + switch (timeout) { + case PR_INTERVAL_NO_WAIT: + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + break; + case PR_INTERVAL_NO_TIMEOUT: + /* + * This is a special case of the 'default' case below. + * Please see the comments there. + */ + tv.tv_sec = _PR_INTERRUPT_CHECK_INTERVAL_SECS; + tv.tv_usec = 0; + FD_ZERO(&rd_wr); + FD_ZERO(&ex); + do { + FD_SET(osfd, &rd_wr); + FD_SET(osfd, &ex); + switch( fd_type ) + { + case READ_FD: + rv = _MD_SELECT(0, &rd_wr, NULL, NULL, &tv); + break; + case WRITE_FD: + rv = _MD_SELECT(0, NULL, &rd_wr, NULL, &tv); + break; + case CONNECT_FD: + rv = _MD_SELECT(0, NULL, &rd_wr, &ex, &tv); + break; + default: + PR_ASSERT(0); + break; + } /* end switch() */ + if (rv == -1 ) + { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + break; + } + if ( rv > 0 && fd_type == CONNECT_FD ) + { + /* + * Call Sleep(0) to work around a Winsock timing bug. + */ + Sleep(0); + if (FD_ISSET((SOCKET)osfd, &ex)) + { + len = sizeof(err); + if (getsockopt(osfd, SOL_SOCKET, SO_ERROR, + (char *) &err, &len) == SOCKET_ERROR) + { + _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError()); + return -1; + } + if (err != 0) + _PR_MD_MAP_CONNECT_ERROR(err); + else + PR_SetError(PR_UNKNOWN_ERROR, 0); + return -1; + } + if (FD_ISSET((SOCKET)osfd, &rd_wr)) + { + /* it's connected */ + return 1; + } + PR_ASSERT(0); + } + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + rv = -1; + break; + } + } while (rv == 0); + break; + default: + remaining = timeout; + FD_ZERO(&rd_wr); + FD_ZERO(&ex); + do { + /* + * We block in _MD_SELECT for at most + * _PR_INTERRUPT_CHECK_INTERVAL_SECS seconds, + * so that there is an upper limit on the delay + * before the interrupt bit is checked. + */ + wait_for_remaining = PR_TRUE; + tv.tv_sec = PR_IntervalToSeconds(remaining); + if (tv.tv_sec > _PR_INTERRUPT_CHECK_INTERVAL_SECS) { + wait_for_remaining = PR_FALSE; + tv.tv_sec = _PR_INTERRUPT_CHECK_INTERVAL_SECS; + tv.tv_usec = 0; + } else { + tv.tv_usec = PR_IntervalToMicroseconds( + remaining - + PR_SecondsToInterval(tv.tv_sec)); + } + FD_SET(osfd, &rd_wr); + FD_SET(osfd, &ex); + switch( fd_type ) + { + case READ_FD: + rv = _MD_SELECT(0, &rd_wr, NULL, NULL, &tv); + break; + case WRITE_FD: + rv = _MD_SELECT(0, NULL, &rd_wr, NULL, &tv); + break; + case CONNECT_FD: + rv = _MD_SELECT(0, NULL, &rd_wr, &ex, &tv); + break; + default: + PR_ASSERT(0); + break; + } /* end switch() */ + if (rv == -1) + { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + break; + } + if ( rv > 0 && fd_type == CONNECT_FD ) + { + /* + * Call Sleep(0) to work around a Winsock timing bug. + */ + Sleep(0); + if (FD_ISSET((SOCKET)osfd, &ex)) + { + len = sizeof(err); + if (getsockopt(osfd, SOL_SOCKET, SO_ERROR, + (char *) &err, &len) == SOCKET_ERROR) + { + _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError()); + return -1; + } + if (err != 0) + _PR_MD_MAP_CONNECT_ERROR(err); + else + PR_SetError(PR_UNKNOWN_ERROR, 0); + return -1; + } + if (FD_ISSET((SOCKET)osfd, &rd_wr)) + { + /* it's connected */ + return 1; + } + PR_ASSERT(0); + } + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + rv = -1; + break; + } + /* + * We loop again if _MD_SELECT timed out and the + * timeout deadline has not passed yet. + */ + if (rv == 0 ) + { + if (wait_for_remaining) { + elapsed = remaining; + } else { + elapsed = PR_SecondsToInterval(tv.tv_sec) + + PR_MicrosecondsToInterval(tv.tv_usec); + } + if (elapsed >= remaining) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + rv = -1; + break; + } else { + remaining = remaining - elapsed; + } + } + } while (rv == 0 ); + break; + } + return(rv); +} /* end socket_io_wait() */ |