freebsd-dev/usr.sbin/i4b/isdndecode/layer3_subr.c
1999-03-07 16:12:47 +00:00

1046 lines
22 KiB
C

/*
* Copyright (c) 1997, 1999 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 1.5 1999/02/14 09:44:57 hm Exp $
*
* last edit-date: [Sun Feb 14 10:16:58 1999]
*
*---------------------------------------------------------------------------*/
#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 */