132 lines
3.3 KiB
C++
132 lines
3.3 KiB
C++
/* cygserver_transport_sockets.cc
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Copyright 2001, 2002 Red Hat Inc.
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Written by Robert Collins <rbtcollins@hotmail.com>
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#include <errno.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <windows.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#include "wincap.h"
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#include "cygwin/cygserver_transport.h"
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#include "cygwin/cygserver_transport_sockets.h"
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/* to allow this to link into cygwin and the .dll, a little magic is needed. */
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#ifndef __OUTSIDE_CYGWIN__
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#include "winsup.h"
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extern "C" int
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cygwin_socket (int af, int type, int protocol);
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extern "C" int
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cygwin_connect (int fd,
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const struct sockaddr *name,
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int namelen);
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extern "C" int
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cygwin_accept (int fd, struct sockaddr *peer, int *len);
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extern "C" int
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cygwin_listen (int fd, int backlog);
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extern "C" int
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cygwin_bind (int fd, const struct sockaddr *my_addr, int addrlen);
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#else
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#define cygwin_accept(A,B,C) ::accept(A,B,C)
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#define cygwin_socket(A,B,C) ::socket(A,B,C)
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#define cygwin_listen(A,B) ::listen(A,B)
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#define cygwin_bind(A,B,C) ::bind(A,B,C)
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#define cygwin_connect(A,B,C) ::connect(A,B,C)
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#define debug_printf printf
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#endif
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transport_layer_sockets::transport_layer_sockets (int newfd): fd(newfd)
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{
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/* This may not be needed in this constructor - it's only used
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* when creating a connection via bind or connect
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*/
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sockdetails.sa_family = AF_UNIX;
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strcpy (sockdetails.sa_data, "/tmp/cygdaemo");
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sdlen = strlen(sockdetails.sa_data) + sizeof(sockdetails.sa_family);
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};
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transport_layer_sockets::transport_layer_sockets (): fd (-1)
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{
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sockdetails.sa_family = AF_UNIX;
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strcpy (sockdetails.sa_data, "/tmp/cygdaemo");
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sdlen = strlen(sockdetails.sa_data) + sizeof(sockdetails.sa_family);
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}
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void
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transport_layer_sockets::listen ()
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{
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/* we want a thread pool based approach. */
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if ((fd = cygwin_socket (AF_UNIX, SOCK_STREAM,0)) < 0)
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printf ("Socket not created error %d\n", errno);
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if (cygwin_bind(fd, &sockdetails, sdlen))
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printf ("Bind doesn't like you. Tsk Tsk. Bind said %d\n", errno);
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if (cygwin_listen(fd, 5) < 0)
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printf ("And the OS just isn't listening, all it says is %d\n", errno);
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}
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class transport_layer_sockets *
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transport_layer_sockets::accept ()
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{
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/* FIXME: check we have listened */
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int new_fd;
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if ((new_fd = cygwin_accept(fd, &sockdetails, &sdlen)) < 0)
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{
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printf ("Nup, could' accept. %d\n",errno);
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return NULL;
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}
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transport_layer_sockets *new_conn = new transport_layer_sockets (new_fd);
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return new_conn;
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}
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void
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transport_layer_sockets::close()
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{
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/* FIXME - are we open? */
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::close (fd);
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}
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ssize_t
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transport_layer_sockets::read (char *buf, size_t len)
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{
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/* FIXME: are we open? */
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return ::read (fd, buf, len);
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}
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ssize_t
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transport_layer_sockets::write (char *buf, size_t len)
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{
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/* FIXME: are we open? */
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return ::write (fd, buf, len);
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}
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bool
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transport_layer_sockets::connect ()
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{
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/* are we already connected? */
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if (fd != -1)
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return false;
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fd = cygwin_socket (AF_UNIX, SOCK_STREAM, 0);
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if (cygwin_connect (fd, &sockdetails, sdlen) < 0)
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{
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debug_printf("client connect failure %d\n", errno);
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::close (fd);
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return false;
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}
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return true;
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}
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