/*	$Id: UnixFaxServer.c++,v 1.2 1999/06/13 07:41:16 robert Exp $ *//* * Copyright (c) 1995-1996 Sam Leffler * Copyright (c) 1995-1996 Silicon Graphics, Inc. * HylaFAX is a trademark of Silicon Graphics * * Permission to use, copy, modify, distribute, and sell this software and  * its documentation for any purpose is hereby granted without fee, provided * that (i) the above copyright notices and this permission notice appear in * all copies of the software and related documentation, and (ii) the names of * Sam Leffler and Silicon Graphics may not be used in any advertising or * publicity relating to the software without the specific, prior written * permission of Sam Leffler and Silicon Graphics. *  * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,  * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY  * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.   *  * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF  * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE  * OF THIS SOFTWARE. *//* * XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX * * This stuff does not work; it is here as a placeholder in * case it becomes worthwhile to add UNIX domain socket support. * * XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX */#if CONFIG_UNIXTRANSPORT#include "Dispatcher.h"#include "UnixFaxServer.h"#include "Sys.h"#include "Socket.h"#include "config.h"UnixSuperServer::UnixSuperServer(const char* f, int bl)    : SuperServer("UNIX", bl)    , fileName(f){}UnixSuperServer::~UnixSuperServer(){    if (fileName != "")	Sys::unlink(fileName);}boolUnixSuperServer::startServer(void){    int s = socket(AF_UNIX, SOCK_STREAM, 0);    if (s >= 0) {	struct sockaddr_un Sun;	Sun.sun_family = AF_UNIX;	strncpy(Sun.sun_path, fileName, sizeof (Sun.sun_path));	if (Socket::bind(s, &Sun, sizeof (Sun)) >= 0) {#ifdef HAS_FCHMOD	    (void) fchmod(s, 0622);#else	    (void) Sys::chmod(fileName, 0622);#endif	    (void) listen(s, getBacklog());	    Dispatcher::instance().link(s, Dispatcher::ReadMask, this);	    return (true);	}	Sys::close(s);	logError("%s HylaFAX: bind (port %s): %m",	    getKind(), (const char*) fileName);	fileName = "";				// don't try to unlink file    } else	logError("%s HylaFAX: socket: %m", getKind());    return (false);}HylaFAXServer* UnixSuperServer::newChild(void) { return new UnixFaxServer; }UnixFaxServer::UnixFaxServer(){    usedefault = true;}UnixFaxServer::~UnixFaxServer() {}voidUnixFaxServer::initServer(void){    HylaFAXServer::initServer();    usedefault = true;}voidUnixFaxServer::open(void){    remotehost = hostname;		// always on same machine    remoteaddr = "local-UNIX";		// XXX    Dispatcher::instance().link(STDIN_FILENO, Dispatcher::ReadMask, this);    HylaFAXServer::open();}voidUnixFaxServer::passiveCmd(void){    perror_reply(425, "Cannot open passive connection "	"(makes no sense with UNIX domain sockets)", errno);}voidUnixFaxServer::netStatus(FILE* fd){    if (data != -1)        fprintf(fd, "    Client data connection open\r\n");    else        fprintf(fd, "    No client data connection\r\n");}/* * Creat a socket for a data transfer. */FILE*UnixFaxServer::getDataSocket(const char* mode){    if (data >= 0)        return (fdopen(data, mode));    int s = socket(AF_UNIX, SOCK_STREAM, 0);    if (s >= 0) {	/* anchor socket to avoid multi-homing problems */	data_source.sun_family = AF_UNIX;	strcpy(data_source.sun_path, ctrl_addr.sun_path);	if (bind(s, (struct sockaddr*) &data_source, sizeof (data_source)) >= 0) {	    return (fdopen(s, mode));	}    }    (void) Sys::close(s);    return (NULL);}boolUnixFaxServer::dataConnect(void){    return Socket::connect(data, &data_dest,sizeof (data_dest)) >= 0;}/* * Establish a data connection for a file transfer operation. */FILE*UnixFaxServer::openDataConn(const char* mode, int& code){    byte_count = 0;    if (pdata >= 0) {        struct sockaddr_un from;        int fromlen = sizeof(from);        int s = accept(pdata, (struct sockaddr*) &from, &fromlen);        if (s < 0) {            reply(425, "Cannot open data connection.");            (void) Sys::close(pdata);            pdata = -1;            return (NULL);        }        (void) Sys::close(pdata);        pdata = s;	code = 150;        return (fdopen(pdata, mode));    }    if (data >= 0) {	code = 125;        usedefault = 1;        return (fdopen(data, mode));    }    if (usedefault)        data_dest = peer_addr;    usedefault = 1;    FILE* file = getDataSocket(mode);    if (file == NULL) {        reply(425, "Cannot create data socket (%s): %s.",	      data_source.sun_path, strerror(errno));	return (NULL);    }    data = fileno(file);    if (!dataConnect()) {	perror_reply(425, "Cannot build data connection", errno);	fclose(file);	data = -1;	return (NULL);    }    code = 150;    return (file);}boolUnixFaxServer::hostPort(){    fxStr s;    if (pathname(s)) {	data_dest.sun_family = AF_UNIX;	strncpy(data_dest.sun_path, s, sizeof (data_dest.sun_path));	return (true);    } else	return (false);}voidUnixFaxServer::portCmd(void){    logcmd(T_PORT, "%s", data_dest.sun_path);    usedefault = false;    if (pdata >= 0)	(void) Sys::close(pdata), pdata = -1;    reply(200, "PORT command successful.");}#endif