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/* $Id: Class2Ersatz.c++,v 1.4 2003/10/09 21:27:42 lhoward Exp $ */
/*
* Copyright (c) 1990-1996 Sam Leffler
* Copyright (c) 1991-1996 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.
*/
#include "Class2Ersatz.h"
#include "ModemConfig.h"
#include <stdlib.h>
#include <ctype.h>
Class2ErsatzModem::Class2ErsatzModem(FaxServer& s, const ModemConfig& c)
: Class2Modem(s,c)
{
serviceType = SERVICE_CLASS2;
setupDefault(classCmd, conf.class2Cmd, "AT+FCLASS=2");
setupDefault(mfrQueryCmd, conf.mfrQueryCmd, "AT+FMFR?");
setupDefault(modelQueryCmd, conf.modelQueryCmd, "AT+FMDL?");
setupDefault(revQueryCmd, conf.revQueryCmd, "AT+FREV?");
setupDefault(dccQueryCmd, conf.class2DCCQueryCmd, "AT+FDCC=?");
setupDefault(abortCmd, conf.class2AbortCmd, "AT+FK");
setupDefault(borCmd, conf.class2BORCmd, "AT+FBOR=0");
setupDefault(tbcCmd, conf.class2TBCCmd, "AT+FTBC=0");
setupDefault(crCmd, conf.class2CRCmd, "AT+FCR=1");
setupDefault(phctoCmd, conf.class2PHCTOCmd, "AT+FPHCTO=30");
setupDefault(bugCmd, conf.class2BUGCmd, "AT+FBUG=1");
setupDefault(lidCmd, conf.class2LIDCmd, "AT+FLID");
setupDefault(dccCmd, conf.class2DCCCmd, "AT+FDCC");
setupDefault(disCmd, conf.class2DISCmd, "AT+FDIS");
setupDefault(cigCmd, conf.class2CIGCmd, "AT+FCIG");
setupDefault(splCmd, conf.class2SPLCmd, "AT+FSPL");
setupDefault(ptsCmd, conf.class2PTSCmd, "AT+FPTS");
setupDefault(minspCmd, conf.class2MINSPCmd, "AT+FMINSP");
setupDefault(noFlowCmd, conf.class2NFLOCmd, "");
setupDefault(softFlowCmd, conf.class2SFLOCmd, "");
setupDefault(hardFlowCmd, conf.class2HFLOCmd, "");
}
Class2ErsatzModem::~Class2ErsatzModem()
{
}
ATResponse
Class2ErsatzModem::atResponse(char* buf, long ms)
{
if (FaxModem::atResponse(buf, ms) == AT_OTHER &&
(buf[0] == '+' && buf[1] == 'F')) {
if (strneq(buf, "+FHNG:", 6)) {
processHangup(buf+6);
lastResponse = AT_FHNG;
hadHangup = true;
} else if (strneq(buf, "+FCON", 5))
lastResponse = AT_FCON;
else if (strneq(buf, "+FPOLL", 6))
lastResponse = AT_FPOLL;
else if (strneq(buf, "+FDIS:", 6))
lastResponse = AT_FDIS;
else if (strneq(buf, "+FNSF:", 6))
lastResponse = AT_FNSF;
else if (strneq(buf, "+FCSI:", 6))
lastResponse = AT_FCSI;
else if (strneq(buf, "+FPTS:", 6))
lastResponse = AT_FPTS;
else if (strneq(buf, "+FDCS:", 6))
lastResponse = AT_FDCS;
else if (strneq(buf, "+FNSS:", 6))
lastResponse = AT_FNSS;
else if (strneq(buf, "+FTSI:", 6))
lastResponse = AT_FTSI;
else if (strneq(buf, "+FET:", 5))
lastResponse = AT_FET;
else if (strneq(buf, "+FPA:", 5))
lastResponse = AT_FPA;
else if (strneq(buf, "+FSA:", 5))
lastResponse = AT_FSA;
else if (strneq(buf, "+FPW:", 5))
lastResponse = AT_FPW;
}
return (lastResponse);
}
/*
* Handle the page-end protocol.
*/
bool
Class2ErsatzModem::pageDone(u_int ppm, u_int& ppr)
{
ppr = 0; // something invalid
if (class2Cmd("AT+FET", ppm, AT_NOTHING)) {
for (;;) {
switch (atResponse(rbuf, conf.pageDoneTimeout)) {
case AT_FPTS:
if (sscanf(rbuf+6, "%u", &ppr) != 1) {
protoTrace("MODEM protocol botch (\"%s\"), %s",
rbuf, "can not parse PPR");
return (false); // force termination
}
/*
* This hack produces more problems than solves (latest ZyXELs
* seem not to have the bug described below). But if there is
* some delay between +FPTS and OK, and the next command is
* feeded before OK is returned, some modems (e.g. Xircom)
* will then return an error (+FHNG:2). Nonetheless I daren't
* remove this code completely :-) -- dbely
*/
#if 0
/*
* (In some firmware revisions...) The ZyXEL modem
* appears to drop DCD when the remote side drops
* carrier, no matter whether DCD is configured to
* follow carrier or not. This results in a stream
* of empty lines, sometimes* followed by the requisite
* trailing OK. As a hack workaround to deal with
* the situation we accept the post page response if
* this is the last page that we're sending and the
* page is good (i.e. we would hang up immediately anyway).
*/
if (ppm == PPM_EOP && ppr == PPR_MCF)
return (true);
#endif
break;
case AT_OK: // normal result code
case AT_ERROR: // possible if page retransmit
return (true);
case AT_FHNG:
/*
* Certain modems respond +FHNG:0 on the final page
* w/o providing post-page status when sending to
* broken fax machines. We interpret this to be an
* acknowledgement, even though it's really a violation
* of the spec.
*/
if (ppm == PPM_EOP && ppr == 0 && isNormalHangup()) {
ppr = PPR_MCF;
return (true);
}
return (isNormalHangup());
case AT_EMPTYLINE:
case AT_TIMEOUT:
case AT_NOCARRIER:
case AT_NODIALTONE:
case AT_NOANSWER:
goto bad;
}
}
}
bad:
processHangup("50"); // Unspecified Phase D error
return (false);
}
/*
* Abort a data transfer in progress.
*/
void
Class2ErsatzModem::abortDataTransfer()
{
protoTrace("SEND abort data transfer");
char c = CAN;
putModemData(&c, 1);
}
/*
* Send an end-of-transmission signal to the modem.
*/
bool
Class2ErsatzModem::sendEOT()
{
static char EOT[] = { DLE, ETX };
return (putModemData(EOT, sizeof (EOT)));
}
/*
* Send a page of data using the ``stream interface''.
*/
bool
Class2ErsatzModem::sendPage(TIFF* tif, u_int pageChop)
{
protoTrace("SEND begin page");
if (flowControl == FLOW_XONXOFF)
setXONXOFF(FLOW_XONXOFF, FLOW_NONE, ACT_FLUSH);
bool rc = sendPageData(tif, pageChop);
if (rc && conf.class2SendRTC)
rc = sendRTC(params);
if (rc)
rc = sendEOT();
else
abortDataTransfer();
if (flowControl == FLOW_XONXOFF)
setXONXOFF(getInputFlow(), FLOW_XONXOFF, ACT_DRAIN);
protoTrace("SEND end page");
return (rc ?
(waitFor(AT_OK, conf.pageDoneTimeout) && hangupCode[0] == '\0') : rc);
}
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