freebsd-dev/usr.sbin/i4b/isdndecode/layer3_subr.c
Poul-Henning Kamp 19c749625f Initial entry of ISDN4BSD into the FreeBSD tree.
ISDN4BSD is the work of our brand-new comitter: Hellmuth Michaelis,
who has done a tremendous amount of work to bring us this far.

There are still some outstanding issues and files to bring into
the tree, and for now it will be needed to pick up all the extra
docs from the isdn4bsd release.

It is probably also a very good idea to subscribe to the isdn@freebsd.org
mailing list before you try this out.

These files correspond to release "beta Version 0.70.00 / December
1998" from Hellmuth.
1998-12-27 21:47:14 +00:00

1046 lines
22 KiB
C

/*
* Copyright (c) 1997, 1998 Hellmuth Michaelis. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*---------------------------------------------------------------------------
*
* layer3_subr.c - subroutines for IE decoding
* -------------------------------------------
*
* $Id: layer3_subr.c,v 1.4 1998/12/18 17:09:38 hm Exp $
*
* last edit-date: [Fri Dec 18 18:12:37 1998]
*
*---------------------------------------------------------------------------*/
#include "decode.h"
/*---------------------------------------------------------------------------*
* dummy function
*---------------------------------------------------------------------------*/
int
f_null(char *pbuf, unsigned char *buf, int off)
{
return(0);
}
/*---------------------------------------------------------------------------*
*
*---------------------------------------------------------------------------*/
int
f_cstat(char *pbuf, unsigned char *buf, int off)
{
int i = 0;
int len = 0;
char buffer[256];
i++;
len = buf[i];
i++;
sprintf((pbuf+strlen(pbuf)), "Std=");
switch((buf[i] & 0x60) >> 5)
{
case 0:
strcpy(buffer, "CCITT");
break;
case 1:
strcpy(buffer, "ISO/IEC");
break;
case 2:
strcpy(buffer, "National");
break;
case 3:
strcpy(buffer, "Special");
break;
}
sprintf((pbuf+strlen(pbuf)), ", State=");
switch((buf[i] & 0x3f))
{
case 0:
strcpy(buffer, "Null");
break;
case 1:
strcpy(buffer, "Call initiated");
break;
case 2:
strcpy(buffer, "Overlap sending");
break;
case 3:
strcpy(buffer, "Outgoing call proceeding");
break;
case 4:
strcpy(buffer, "Call delivered");
break;
case 6:
strcpy(buffer, "Call present");
break;
case 7:
strcpy(buffer, "Call received");
break;
case 8:
strcpy(buffer, "Connect request");
break;
case 9:
strcpy(buffer, "Incoming call proceeding");
break;
case 10:
strcpy(buffer, "Active");
break;
case 11:
strcpy(buffer, "Disconnect request");
break;
case 12:
strcpy(buffer, "Disconnect indication");
break;
case 15:
strcpy(buffer, "Suspend request");
break;
case 17:
strcpy(buffer, "Resume request");
break;
case 19:
strcpy(buffer, "Release request");
break;
case 22:
strcpy(buffer, "Call abort");
break;
case 25:
strcpy(buffer, "Overlap receiving");
break;
case 0x3d:
strcpy(buffer, "Restart request");
break;
case 0x3e:
strcpy(buffer, "Restart");
break;
default:
strcpy(buffer, "ERROR: undefined/reserved");
break;
}
sprintf((pbuf+strlen(pbuf)), "]");
i++;
return(i);
}
/*---------------------------------------------------------------------------*
*
*---------------------------------------------------------------------------*/
int
f_chid(char *pbuf, unsigned char *buf, int off)
{
int i = 0;
int len = 0;
char buffer[256];
i++;
len = buf[i];
i++;
extension(3, pbuf+strlen(pbuf), off+i, buf[i], 0x80);
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x40, "Interface Id present = %s", buf[i] & 0x40 ? "Yes" : "No");
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x20, "Interface Type = %s", buf[i] & 0x20 ? "Other (PRI)" : "BRI");
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x10, "Spare");
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x08, "Channel = %s", buf[i] & 0x08 ? "exclusive" : "preferred");
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x04, "Channel is%s the D-Channel", buf[i] & 0x04 ? "" : " not");
switch(buf[i] & 0x03)
{
case 0:
strcpy(buffer, "no channel");
break;
case 1:
strcpy(buffer, "B-1");
break;
case 2:
strcpy(buffer, "B-2");
break;
case 3:
strcpy(buffer, "any channel");
break;
}
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x03, "Channel = %s", buffer);
i++;
return(i);
}
/*---------------------------------------------------------------------------*
*
*---------------------------------------------------------------------------*/
int
f_fac(char *pbuf, unsigned char *buf, int off)
{
return(q932_facility(pbuf, buf));
}
/*---------------------------------------------------------------------------*
*
*---------------------------------------------------------------------------*/
int
f_progi(char *pbuf, unsigned char *buf, int off)
{
int i = 0;
int len = 0;
char buffer[256];
i++;
len = buf[i];
i++;
sprintf((pbuf+strlen(pbuf)), "Std=");
switch((buf[i] & 0x60) >> 5)
{
case 0:
strcpy(buffer, "CCITT");
break;
case 1:
strcpy(buffer, "ISO/IEC");
break;
case 2:
strcpy(buffer, "National");
break;
case 3:
strcpy(buffer, "Local");
break;
}
sprintf((pbuf+strlen(pbuf)), ", Loc=");
switch((buf[i] & 0x0f))
{
case 0:
strcpy(buffer, "User");
break;
case 1:
strcpy(buffer, "Private network serving local user");
break;
case 2:
strcpy(buffer, "Public network serving local user");
break;
case 3:
strcpy(buffer, "Transit network");
break;
case 4:
strcpy(buffer, "Public network serving remote user");
break;
case 5:
strcpy(buffer, "Private network serving remote user");
break;
case 6:
strcpy(buffer, "Network beyond interworking point");
break;
default:
strcpy(buffer, "ERROR: undefined/reserved");
break;
}
i++;
sprintf((pbuf+strlen(pbuf)), "\n Description");
switch((buf[i] & 0x7f))
{
case 1:
strcpy(buffer, "Call is not end-to-end ISDN");
break;
case 2:
strcpy(buffer, "Destination address is non-ISDN");
break;
case 3:
strcpy(buffer, "Origination address is non-ISDN");
break;
case 4:
strcpy(buffer, "Call has returned to the ISDN");
break;
case 5:
strcpy(buffer, "Interworking occured, Service change");
break;
case 8:
strcpy(buffer, "In-band info or appropriate pattern now available");
break;
default:
strcpy(buffer, "ERROR: undefined/reserved");
break;
}
sprintf((pbuf+strlen(pbuf)), "]");
i++;
return(i);
}
/*---------------------------------------------------------------------------*
*
*---------------------------------------------------------------------------*/
int
f_displ(char *pbuf, unsigned char *buf, int off)
{
int i = 0;
int j = 0;
int len = 0;
i++;
len = buf[i];
i++;
for(j = 0; j < len; j++)
{
sprintf((pbuf+strlen(pbuf)),"%c", buf[j+i]);
}
sprintf((pbuf+strlen(pbuf)),"]");
i += j;
return(i);
}
/*---------------------------------------------------------------------------*
*
*---------------------------------------------------------------------------*/
int
f_date(char *pbuf, unsigned char *buf, int off)
{
int i = 0;
int j = 0;
int len = 0;
i++;
len = buf[i];
i++;
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0xff, "Year = %02d", buf[i]);
i++;
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0xff, "Month = %02d", buf[i]);
i++;
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0xff, "Day = %02d", buf[i]);
i++;
j=3;
if(j < len)
{
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0xff, "Hour = %02d", buf[i]);
i++;
j++;
}
if(j < len)
{
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0xff, "Minute = %02d", buf[i]);
i++;
j++;
}
if(j < len)
{
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0xff, "Second = %02d", buf[i]);
i++;
j++;
}
i += len;
return(i);
}
/*---------------------------------------------------------------------------*
* decode and print the cause
*---------------------------------------------------------------------------*/
int
f_cause(char *pbuf, unsigned char *buf, int off)
{
int j;
int len;
int i = 0;
int ls;
char buffer[256];
i++; /* index -> length */
len = buf[i];
i++; /* coding/location */
len--;
ls = buf[i];
extension(3, pbuf+strlen(pbuf), off+i, buf[i], 0x80);
switch((ls & 0x60) >> 5)
{
case 0:
strcpy(buffer, "CCITT");
break;
case 1:
strcpy(buffer, "ISO/IEC");
break;
case 2:
strcpy(buffer, "National");
break;
case 3:
strcpy(buffer, "Local");
break;
}
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x60, "Coding Standard = %s", buffer);
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x10, "Spare");
switch(ls & 0x0f)
{
case 0x00:
strcpy(buffer, "user");
break;
case 0x01:
strcpy(buffer, "private network serving local user");
break;
case 0x02:
strcpy(buffer, "public network serving local user");
break;
case 0x03:
strcpy(buffer, "transit network");
break;
case 0x04:
strcpy(buffer, "public network serving remote user");
break;
case 0x05:
strcpy(buffer, "private network serving remote user");
break;
case 0x07:
strcpy(buffer, "international network");
break;
case 0x0a:
strcpy(buffer, "network beyond interworking point");
break;
default:
sprintf(buffer, "reserved (0x%02x)", ls & 0x0f);
break;
}
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x0f, "Location = %s", buffer);
i++;
len--;
if(!(ls & 0x80))
{
extension(3, pbuf+strlen(pbuf), off+i, buf[i], 0x80);
switch(buf[i] & 0x7f)
{
case 0:
strcpy(buffer, "Q.931");
break;
case 3:
strcpy(buffer, "X.21");
break;
case 4:
strcpy(buffer, "X.25");
break;
case 5:
strcpy(buffer, "Q.1031/Q.1051");
break;
default:
strcpy(buffer, "Reserved");
break;
}
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x7f, "Recommendation = %s", buffer);
i++;
len--;
}
extension(3, pbuf+strlen(pbuf), off+i, buf[i], 0x80);
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x7f, "Cause = %s", print_cause_q850(buf[i] & 0x7f));
i++;
len--;
for(j = 0; j < len; j++)
sprintline(3, (pbuf+strlen(pbuf)), off+i+j, buf[i+j], 0xff, "Diagnostics = %02d %s", buf[i+j]);
i += (len+1);
return(i);
}
/*---------------------------------------------------------------------------*
* decode and print the bearer capability
*---------------------------------------------------------------------------*/
int
f_bc(char *pbuf, unsigned char *buf, int off)
{
int len;
int i = 0;
int mr = 0;
char buffer[256];
i++; /* index -> length */
len = buf[i];
i++;
extension(3, pbuf+strlen(pbuf), off+i, buf[i], 0x80);
switch((buf[i] & 0x60) >> 5)
{
case 0:
strcpy(buffer, "CCITT");
break;
case 1:
strcpy(buffer, "ISO/IEC");
break;
case 2:
strcpy(buffer, "National");
break;
case 3:
strcpy(buffer, "NSI Std");
break;
}
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x60, "Coding standard = %s", buffer);
switch(buf[i] & 0x1f)
{
case 0x00:
strcpy(buffer, "speech");
break;
case 0x08:
strcpy(buffer, "unrestricted digital information");
break;
case 0x09:
strcpy(buffer, "restricted digital information");
break;
case 0x10:
strcpy(buffer, "3.1 kHz audio");
break;
case 0x11:
strcpy(buffer, "unrestricted digital information with tones");
break;
case 0x18:
strcpy(buffer, "video");
break;
default:
sprintf(buffer, "reserved (0x%02x)", buf[i] & 0x0f);
break;
}
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x1f, "Capability = %s", buffer);
i++;
len--;
extension(3, pbuf+strlen(pbuf), off+i, buf[i], 0x80);
switch((buf[i] & 0x60) >> 5)
{
case 0:
strcpy(buffer, "circuit");
break;
case 2:
strcpy(buffer, "packet");
break;
default:
sprintf((pbuf+strlen(pbuf)), "reserved (0x%02x)", ((buf[i] & 0x60) >> 5));
break;
}
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x60, "Mode = %s", buffer);
switch(buf[i] & 0x1f)
{
case 0x00:
strcpy(buffer, "packet mode");
break;
case 0x10:
strcpy(buffer, "64 kbit/s");
break;
case 0x11:
strcpy(buffer, "2 x 64 kbit/s");
break;
case 0x13:
strcpy(buffer, "384 kbit/s");
break;
case 0x15:
strcpy(buffer, "1536 kbit/s");
break;
case 0x17:
strcpy(buffer, "1920 kbit/s");
break;
case 0x18:
strcpy(buffer, "Multirate");
mr = 1;
break;
default:
sprintf((pbuf+strlen(pbuf)), "reserved (0x%02x)", buf[i] & 0x0f);
break;
}
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x1f, "Rate = %s", buffer);
i++;
len--;
if(!len)
goto exit;
if(mr)
{
extension(3, pbuf+strlen(pbuf), off+i, buf[i], 0x80);
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x60, "Rate multiplier = %d", buf[i] & 0x7f);
i++;
len--;
}
if(!len)
goto exit;
sprintf((pbuf+strlen(pbuf)), "\n layer1=");
switch(buf[i] & 0x1f)
{
case 0x01:
sprintf((pbuf+strlen(pbuf)), "V.110");
break;
case 0x02:
sprintf((pbuf+strlen(pbuf)), "G.711 u-law");
break;
case 0x03:
sprintf((pbuf+strlen(pbuf)), "G.711 A-law");
break;
case 0x04:
sprintf((pbuf+strlen(pbuf)), "G.721");
break;
case 0x05:
sprintf((pbuf+strlen(pbuf)), "H.221/H.242");
break;
case 0x07:
sprintf((pbuf+strlen(pbuf)), "Non-Std");
break;
case 0x08:
sprintf((pbuf+strlen(pbuf)), "V.120");
break;
case 0x09:
sprintf((pbuf+strlen(pbuf)), "X.31");
break;
default:
sprintf((pbuf+strlen(pbuf)), "reserved (0x%02x)", buf[i] & 0x0f);
break;
}
i++;
len--;
if(!len)
goto exit;
if(!(buf[i-1] & 0x80))
{
sprintf((pbuf+strlen(pbuf)), "\n user rate=0x%02x ", buf[i] & 0x1f);
if(buf[i] & 0x40)
sprintf((pbuf+strlen(pbuf)), "(async,");
else
sprintf((pbuf+strlen(pbuf)), "(sync,");
if(buf[i] & 0x20)
sprintf((pbuf+strlen(pbuf)), "in-band neg. possible)");
else
sprintf((pbuf+strlen(pbuf)), "in-band neg not possible)");
i++;
len--;
}
if(!len)
goto exit;
if(!(buf[i-1] & 0x80))
{
sprintf((pbuf+strlen(pbuf)), "\n clk/flow=0x%02x", buf[i] & 0x1f);
sprintf((pbuf+strlen(pbuf)), "\n intermediate rate=");
switch((buf[i] & 0x60) >> 5)
{
case 0:
sprintf((pbuf+strlen(pbuf)), "not used");
break;
case 1:
sprintf((pbuf+strlen(pbuf)), "8 kbit/s");
break;
case 2:
sprintf((pbuf+strlen(pbuf)), "16 kbit/s");
break;
case 3:
sprintf((pbuf+strlen(pbuf)), "32 kbit/s");
break;
}
i++;
len--;
}
if(!len)
goto exit;
if(!(buf[i-1] & 0x80))
{
sprintf((pbuf+strlen(pbuf)), "\n hdr/mfrm/etc.=0x%02x", buf[i]);
i++;
len--;
}
if(!len)
goto exit;
if(!(buf[i-1] & 0x80))
{
sprintf((pbuf+strlen(pbuf)), "\n stop/data/parity=0x%02x", buf[i]);
i++;
len--;
}
if(!len)
goto exit;
if(!(buf[i-1] & 0x80))
{
sprintf((pbuf+strlen(pbuf)), "\n modemtype=0x%02x", buf[i]);
i++;
len--;
}
if(!len)
goto exit;
switch(buf[i] & 0x7f)
{
case 0x42:
sprintf((pbuf+strlen(pbuf)), "\n layer2=Q.921/I.441");
break;
case 0x46:
sprintf((pbuf+strlen(pbuf)), "\n layer2=X.25 link");
break;
default:
sprintf((pbuf+strlen(pbuf)), "\n layer2=0x%02x",(buf[i] & 0x7f));
break;
}
i++;
len--;
if(!len)
goto exit;
switch(buf[i] & 0x7f)
{
case 0x62:
sprintf((pbuf+strlen(pbuf)), "\n layer3=Q.921/I.441");
break;
case 0x66:
sprintf((pbuf+strlen(pbuf)), "\n layer3=X.25 packet");
break;
default:
sprintf((pbuf+strlen(pbuf)), "\n layer3=0x%02x",(buf[i] & 0x7f));
break;
}
i++;
len--;
exit:
return(i);
}
/*---------------------------------------------------------------------------*
* decode and print the ISDN (telephone) number
*---------------------------------------------------------------------------*/
int
f_cnu(char *pbuf, unsigned char *buf, int off)
{
int j;
int len;
int i = 0;
int tp;
int ind = 0;
char buffer[256];
i++; /* index -> length */
len = buf[i];
i++; /* index -> type/plan */
tp = buf[i];
extension(3, pbuf+strlen(pbuf), off+i, buf[i], 0x80);
switch((tp & 0x70) >> 4)
{
case 0:
strcpy(buffer, "Unknown");
break;
case 1:
strcpy(buffer, "International number");
break;
case 2:
strcpy(buffer, "National number");
break;
case 3:
strcpy(buffer, "Network specific number");
break;
case 4:
strcpy(buffer, "Subscriber number");
break;
case 6:
strcpy(buffer, "Abbreviated number");
break;
default:
sprintf(buffer, "Reserved (%d), ", ((tp & 0x70) >> 4));
break;
}
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x60, "Type = %s", buffer);
switch(tp & 0x0f)
{
case 0:
strcpy(buffer, "Unknown");
break;
case 1:
strcpy(buffer, "ISDN (E.164)");
break;
case 3:
strcpy(buffer, "Data (X.121)");
break;
case 4:
strcpy(buffer, "Telex (F.69)");
break;
case 8:
strcpy(buffer, "National");
break;
case 9:
strcpy(buffer, "Private");
break;
default:
sprintf(buffer, "Reserved (%d)", (tp & 0x0f));
break;
}
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x0f, "Plan = %s", buffer);
i++;
len--;
if(!(tp & 0x80))
{
extension(3, pbuf+strlen(pbuf), off+i, buf[i], 0x80);
switch((buf[i] & 0x60) >> 5)
{
case 0:
strcpy(buffer, "allowed");
break;
case 1:
strcpy(buffer, "restricted");
break;
case 2:
strcpy(buffer, "number not available");
break;
case 3:
strcpy(buffer, "reserved");
break;
}
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x60, "Presentation = %s", buffer);
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x1c, "Spare");
switch(ind & 0x03)
{
case 0:
strcpy(buffer, "user provided, not screened");
break;
case 1:
strcpy(buffer, "user provided, verified & passed");
break;
case 2:
strcpy(buffer, "user provided, verified & failed");
break;
case 3:
strcpy(buffer, "network provided");
break;
}
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x03, "Screening = %s", buffer);
i++;
len--;
}
for(j = 0; j < len; j++)
{
sprintline(3, (pbuf+strlen(pbuf)), off+i+j, buf[i+j], 0xff, "Number digit = %c", buf[i+j]);
}
i += j;
return(i);
}
/*---------------------------------------------------------------------------*
* decode and print HL comatibility
*---------------------------------------------------------------------------*/
int
f_hlc(char *pbuf, unsigned char *buf, int off)
{
int i = 0;
int len = 0;
char buffer[256];
i++;
len = buf[i];
i++;
extension(3, pbuf+strlen(pbuf), off+i, buf[i], 0x80);
switch((buf[i] >> 5) & 0x03)
{
case 0: strcpy(buffer, "CCITT");
break;
case 1: strcpy(buffer, "ISO/IEC");
break;
case 2: strcpy(buffer, "National");
break;
case 3: strcpy(buffer, "Network");
}
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x60, "Coding standard = %s", buffer);
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x1c, "Interpretation = %s", ((buf[i] >> 2) & 0x07) == 0x04 ? "first" : "reserved");
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x03, "Presentation = %s", ((buf[i]) & 0x03) == 0x01 ? "High layer protocol profile" : "reserved");
i++;
len--;
extension(3, pbuf+strlen(pbuf), off+i, buf[i], 0x80);
switch(buf[i] & 0x7f)
{
case 0x01:
strcpy(buffer, "Telephony");
break;
case 0x04:
strcpy(buffer, "Fax Group 2/3 (F.182)");
break;
case 0x21:
strcpy(buffer, "Fax Group 4 I (F.184)");
break;
case 0x24:
strcpy(buffer, "Teletex (F.230) or Fax Group 4 II/III (F.184)");
break;
case 0x28:
strcpy(buffer, "Teletex (F.220)");
break;
case 0x31:
strcpy(buffer, "Teletex (F.200)");
break;
case 0x32:
strcpy(buffer, "Videotex (F.300/T.102)");
break;
case 0x33:
strcpy(buffer, "Videotex (F.300/T.101)");
break;
case 0x35:
strcpy(buffer, "Telex (F.60)");
break;
case 0x38:
strcpy(buffer, "MHS (X.400)");
break;
case 0x41:
strcpy(buffer, "OSI (X.200)");
break;
case 0x5e:
strcpy(buffer, "Maintenance");
break;
case 0x5f:
strcpy(buffer, "Management");
break;
case 0x60:
strcpy(buffer, "Audio visual (F.721)");
break;
default:
sprintf(buffer, "Reserved (0x%02x)", buf[i] & 0x7f);
break;
}
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x7f, "Characteristics = %s", buffer);
i++;
len--;
if(buf[i-1] & 0x80)
{
return(i);
}
extension(3, pbuf+strlen(pbuf), off+i, buf[i], 0x80);
switch(buf[i] & 0x7f)
{
case 0x01:
strcpy(buffer, "Telephony");
break;
case 0x04:
strcpy(buffer, "Fax Group 2/3 (F.182)");
break;
case 0x21:
strcpy(buffer, "Fax Group 4 I (F.184)");
break;
case 0x24:
strcpy(buffer, "Teletex (F.230) or Fax Group 4 II/III (F.184)");
break;
case 0x28:
strcpy(buffer, "Teletex (F.220)");
break;
case 0x31:
strcpy(buffer, "Teletex (F.200)");
break;
case 0x32:
strcpy(buffer, "Videotex (F.300/T.102)");
break;
case 0x33:
strcpy(buffer, "Videotex (F.300/T.101)");
break;
case 0x35:
strcpy(buffer, "Telex (F.60)");
break;
case 0x38:
strcpy(buffer, "MHS (X.400)");
break;
case 0x41:
strcpy(buffer, "OSI (X.200)");
break;
case 0x5e:
strcpy(buffer, "Maintenance");
break;
case 0x5f:
strcpy(buffer, "Management");
break;
case 0x60:
strcpy(buffer, "Audio visual (F.721)");
break;
default:
sprintf(buffer, "Reserved (0x%02x)", buf[i] & 0x7f);
break;
}
sprintline(3, (pbuf+strlen(pbuf)), off+i, buf[i], 0x7f, "Ext. characteristics = %s", buffer);
i++;
return(i);
}
/* EOF */