314 lines
8.2 KiB
C
314 lines
8.2 KiB
C
/* $Id: capifax.c,v 1.2 1998/10/23 12:50:47 fritz Exp $
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*
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* A FAX send application for CAPI.
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* This stuff is based heavily on AVM's CAPI-adk for linux.
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*
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* This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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* * This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Log: capifax.c,v $
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* Revision 1.2 1998/10/23 12:50:47 fritz
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* Added RCS keywords and GPL notice.
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <signal.h>
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#include <assert.h>
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#include <errno.h>
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#include <unistd.h>
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#include <linux/capi.h>
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#include <capi20.h>
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#include "c20msg.h"
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#include "capi.h"
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#include "connect.h"
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#include "contr.h"
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#include "data.h"
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#include "id.h"
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#include "init.h"
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#include "fax.h"
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extern char *stationID;
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extern char *headLine;
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static char *CallingPartyNumber = NULL;
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static char *CalledPartyNumber = NULL;
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static ConnectionID Slot;
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#define B1PROTOCOL 4
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#define B2PROTOCOL 4
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#define B3PROTOCOL 4
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#define QueueSize 8
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typedef struct __DataElement {
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char DATA[SendBlockSize];
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unsigned short DATA_LENGTH;
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unsigned SENT;
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} _DataElement;
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typedef struct __DataQueue {
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_DataElement Element[QueueSize];
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unsigned Head;
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unsigned Tail;
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unsigned Fill;
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} _DataQueue;
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_DataQueue Queue;
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static unsigned FileTransfer = FALSE; /* signals if transfer is in progress */
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static int verbose;
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static int reason;
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static int reason_b3;
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/*--------------------------------------------------------------------------*\
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* MainDataConf: signals the successful sending of a datablock
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* This function is called after receiving a DATA_B3_CONFirmation. CAPI signals
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* that the datablock identified by DataHandle has been sent and the memory
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* area may be freed. The DataHandle is the same as specified in SendBlock.
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\*--------------------------------------------------------------------------*/
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void MainDataConf(ConnectionID Connection,
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unsigned short DataHandle,
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unsigned short Info) {
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assert (Connection != INVALID_CONNECTION_ID);
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if (Info != 0)
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return;
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if (FileTransfer) {
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assert (DataHandle == (unsigned short)Queue.Tail);
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Queue.Element[Queue.Tail].SENT = FALSE;
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if (++Queue.Tail >= QueueSize)
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Queue.Tail = 0;
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Queue.Fill--;
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}
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}
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/*--------------------------------------------------------------------------*\
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* MainStateChange: signals a state change on both B-channels (connected,
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* disconnected). Whenever a channel changes his state this function is called
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\*--------------------------------------------------------------------------*/
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void MainStateChange(ConnectionID Connection, ConnectionState State) {
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faxNCPI_t *faxNCPI;
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assert (Connection != INVALID_CONNECTION_ID);
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if (State == Disconnected) {
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unsigned short r3 = GetB3Reason(Connection);
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unsigned short r = GetReason(Connection);
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Slot = INVALID_CONNECTION_ID;
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reason_b3 = r3;
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reason = r;
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if (!verbose)
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return;
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printf("Disconnected.\n");
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printf(" Reason : %04x %s\n", r, Decode_Info(r));
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printf(" Reason-B3 : %04x %s\n", r3, Decode_Info(r3));
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if ((faxNCPI = GetFaxNCPI(Connection))) {
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printf(" Remote Station ID : %s\n", faxNCPI->id);
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printf(" Transfer-Rate : %d bps\n", faxNCPI->rate);
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printf(" Resolution : %s\n", faxNCPI->resolution ? "high" : "low");
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printf(" Number of Pages : %d\n", faxNCPI->pages);
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}
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}
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}
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/*--------------------------------------------------------------------------*\
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* Disconnect_h: high level Disconnect
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\*--------------------------------------------------------------------------*/
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unsigned Disconnect_h(ConnectionID Connection) {
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ConnectionState State;
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if (Connection == INVALID_CONNECTION_ID) {
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fprintf(stderr, "Disconnect_h: ConnectionID is invalid\n");
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return 0xFFFF;
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}
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State = GetState(Connection);
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if ((State == Disconnected) || (State == D_DisconnectPending))
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return 0xFFFF;
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return Disconnect(Connection);
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}
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void InitQueue(void) {
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unsigned x;
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for (x=0; x<QueueSize; x++)
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Queue.Element[x].SENT = FALSE;
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Queue.Head = 0;
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Queue.Tail = 0;
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Queue.Fill = 0;
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}
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void TransferData() {
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MESSAGE_EXCHANGE_ERROR error;
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unsigned t;
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if (Queue.Fill > 0) {
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t = Queue.Tail;
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do {
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if (Queue.Element[t].SENT == FALSE) {
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error = SendData(0,
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(void *)Queue.Element[t].DATA,
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Queue.Element[t].DATA_LENGTH,
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(unsigned short)t);
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if (error != 0) {
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fprintf(stderr, "Error during transfer: 0x%04X !!!\n",error);
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break;
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}
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Queue.Element[t].SENT = TRUE;
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}
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if (++t >= QueueSize)
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t = 0;
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} while (t != Queue.Head);
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}
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}
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unsigned SendFax(char *name) {
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int first;
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char mbuf[4];
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unsigned count;
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B3_PROTO_FAXG3 B3conf;
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FILE *f;
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first = 1;
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reason = reason_b3 = 0;
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if (!strcmp(name, "-"))
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f = stdin;
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else
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f = fopen(name, "rb");
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if (!f) {
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perror(name);
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exit(errno);
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}
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fread(mbuf, 4, 1, f);
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InitQueue();
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SetupB3Config(&B3conf,
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(strncmp(mbuf, "Sfff", 4)) ? FAX_ASCII_FORMAT:FAX_SFF_FORMAT);
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if (Slot != INVALID_CONNECTION_ID) {
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fprintf(stderr, "Connection is already in use\n");
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fclose(f);
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return 0xFFFF;
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}
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Connect(&Slot, CalledPartyNumber, CallingPartyNumber, SPEECH,
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B1PROTOCOL, B2PROTOCOL, B3PROTOCOL, (unsigned char *)&B3conf);
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do {
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Handle_CAPI_Msg();
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if (Slot == INVALID_CONNECTION_ID) {
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fclose(f);
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return 2;
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}
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} while (GetState(Slot) != Connected);
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FileTransfer = TRUE;
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while (!feof(f)) {
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if (Queue.Fill < 7) {
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/* max. 7 outstanding blocks supported by CAPI */
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if (first) {
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memcpy(&(Queue.Element[Queue.Head].DATA[0]), mbuf, 4);
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count = fread(&(Queue.Element[Queue.Head].DATA[4]), 1,
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SendBlockSize - 4, f);
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} else
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count = fread(&(Queue.Element[Queue.Head].DATA[0]), 1,
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SendBlockSize, f);
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if (count > 0) {
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if (first)
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count += 4;
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Queue.Element[Queue.Head].DATA_LENGTH = (unsigned short)count;
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if (++Queue.Head >= QueueSize)
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Queue.Head = 0;
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Queue.Fill++;
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}
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first = 0;
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}
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if (GetState(Slot) != Connected)
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break;
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TransferData();
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Handle_CAPI_Msg();
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}
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Disconnect_h(Slot);
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while ((Slot != INVALID_CONNECTION_ID) &&
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(GetState(Slot) != Disconnected))
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Handle_CAPI_Msg();
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FileTransfer = FALSE;
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fclose(f);
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switch (reason) {
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case 0x3490: /* Normal call clearing */
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case 0x349f: /* Normal, unspecified */
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return reason_b3;
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default:
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return reason;
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}
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return 0;
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}
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void usage(void) {
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fprintf(stderr, "usage: capifax [-v] [-i stationID] [-h header] [-c callerNumber] phone file\n");
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exit(1);
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}
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int main(int argc, char **argv) {
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int numController;
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int BChannels, Contr;
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int c;
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int ret;
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verbose = 0;
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while ((c = getopt(argc, argv, "vc:i:h:")) != EOF) {
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switch (c) {
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case 'v':
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verbose++;
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break;
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case 'c':
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CallingPartyNumber = strdup(optarg);
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break;
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case 'i':
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stationID = strdup(optarg);
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break;
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case 'h':
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headLine = strdup(optarg);
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break;
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case '?':
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usage();
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}
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}
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if (argc < optind + 2)
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usage();
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CalledPartyNumber = argv[optind++];
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Slot = INVALID_CONNECTION_ID;
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MainDataConf_p = MainDataConf;
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MainStateChange_p = MainStateChange;
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if (!RegisterCAPI())
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return -1;
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atexit (ReleaseCAPI);
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InitConnectionIDHandling();
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if (!(numController = GetNumController())) {
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fprintf(stderr, "No CAPI controllers available\n");
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return -2;
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}
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BChannels = 0;
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for (Contr=1; Contr<=numController; Contr++)
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BChannels += GetNumOfSupportedBChannels(Contr);
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if (!BChannels) {
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fprintf(stderr, "No B-Channels available\n");
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return -3;
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}
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ret = SendFax(argv[optind]);
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if ((Slot != INVALID_CONNECTION_ID) &&
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(GetState(Slot) != Disconnected) &&
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(GetState(Slot) != D_DisconnectPending))
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Disconnect(Slot);
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return ret;
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}
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