Changes to the console display
------------------------------

 *  Opening banner shows build date and start time, removed Demon support
    details (main.c)
 *  Time correction (time read/set) is shown in local time (nettime.c)
 *  Time server connect timeout announced as such (nettime.c)
 *  Line drops are notified to screen (ppp.c)
 *  PPP PAP now uses command rather than new session (PAP_SESSION, ppppap.c)

Changes to commands and config files
------------------------------------

 *  'asystat' shows serial port signals' status
 *  'ppp i/f [lcp|ipcp] listen' now works again to configure a passive open,
    default is still an active open.
 *  'time server' can take a hostname which won't be resolved until required;
    'time server none' undefines server (nettime.c)
 *  'time read' and 'time set' now run in background so won't hang
    (nettime.c)
 *  'time min/maxcorrect' now handle > 32767s (nettime.c)
 *  'trace' adds a millisecond clock to the trace log (trace.c)
 *  'record filename' - fixed bug in binary telnet sessions which could
    corrupt file; linefeed translation fixed for ascii (telnet.c, session.c)
 *  rewrite file - check for r|R rescan flag is better to avoid malformed
    lines such as '* postmaster # comment heRe' or '* postmaster postmasteR'
    will no longer recurse infinitely (mailbox.c)
 *  wildmat (wildcards in mailkill, rewrite and nntp kill) accepts ']' or '-'
    (wildmat.c)
 *  long finger support 'finger -l ...' (finger.c)

Changes to log file
-------------------

 *  PPP idle timeout is logged (pppcmd.c)

Added source conditionals
-------------------------

 *  GEK_UNUSED wraps functions or data unreferenced in the Demon build
 *  REMOTE enables the remote client (main.c)
 *  DEMON displays original Demon support contact banner (main.c)
 *  ARCHIE_CLIENT compiles in support for Archie client (session.c)
 *  ENCAP enables encapsulation interface (IP over IP) (iface.c, ip*, tcp*)
 *  LOG_UNKNOWN_PORTS enables logging of unexpected TCP and UDP port probes
 *  STACK_CHECK compiles stack overrun checking into kernel (kernel.c,ksubr.c)
 *  PAP_SESSION define to run PAP negotiation in own session (ppppap.c)
 *  POP3_FINGER includes POP3 long finger client (config.c, pop3fngr.c)

Summary of source file changes
------------------------------

bm.h

 *  Added mailbox.h to fix warnings
 *  Remove redundant fgets() prototype

cmdparse.h

 *  Added correct far prototype for Cmds[]

filter.h

 *  Added incomplete struct declarations to fix gcc warnings

global.h

 *  Removed unused clock() prototype
 *  Moved ansi_putc() to pc.h
 *  MAXINT16 fixed from long const to unsigned to fix BC4 warnings
 *  Fixed Gcollect prototype

iface.h

 *  Added incomplete struct declaration to fix gcc warnings

mailbox.h

 *  Fixed nested comment

main.h

 *  Fixed warning after #endif

nr4.h

 *  Fixed open_nr4() prototype gcc warning

pc.h

 *  Added TextWin conditionals
 *  Fixed Shutdown and chtimer prototypes
 *  Added incomplete struct session proto to fix gcc warning
 *  Moved ansi_putc() from global.h, removed ANSI conditional

ppp.h

 *  Fixed ppp_output() prototype to match ppp.c

pppfsm.h

 *  Added TRACE conditional on PPP debug macros
 *  Added fsm_log() macro to prevent compiling in strings with TRACE undef'd

pppipcp.h

 *  Added IPCP type 3 Address negotiation option (RFC1332)
 *  Changed retry defaults to match RFC1661

ppplcp.h

 *  Changed retry defaults to match RFC1661

ppppap.h

 *  Changed retry defaults to match RFC1661

rbsb.h

 *  Fixed far declaration of _cr3tab

session.h

 *  Added TextWin conditionals
 *  Added Archie client support
 *  Added forward incomplete struct screen declaration to fix gcc warning

socket.h

 *  Added IDENT, POP2, POP3 defines
 *  Moved errno E.. error code defines to avoid clashes with BC's errno values

smtp.h

 *  Additions to smtpsv struct for SMTP server enhancements
 *  Fixed ptime() prototype to use time_t
 *  Added doserver() prototype for 'smtp server ...'
 *  Changed delay_job() prototype to accept 8 char string id

timer.h

 *  Tick volatile to match pc.c

8250.c

 *  Increased asy_monitor stack to prevent overrun with tracing
 *  Added new asyvec support (requires modified pcgen.asm)
 *  asystat shows status of serial signals

alloc.c

 *  Fixed warning when MULTITASK not defined
 *  Tidied bad free logging

arphdr.c

 *  Fixed warnings under BC4

bmutil.c

 *  Added MAILBOX conditionals
 *  Whitespace fixes in htype() to accept tab

config.c

 *  More configurable conditionals
 *  Merged TextWin conditionals
 *  Conditionals on Listusers
 *  Adjust network proc stack according to configuration
 *  Inline Hopper dequeue in network()

dialer.c

 *  Fixed NULL ptr de-refs in control and status commands
 *  Restore process name after running dialer process
 *  Added TRACE conditionals
 *  Added generic config init function to save some space
 *  Fixed cwait to prevent it eating extra char after match string
 *  Removed pause after inline dialer completes (OS/2)
 *  Added flush and pwait()s to character display
 *  Added commands to log results to file

domain.c

 *  Fixed BC4 warnings
 *  Fixed DSERVER conditionals to #ifdefs
 *  Fixed NULL de-refs hitting 'q' in cachelist and dodnsquery
 *  Use session flow control in cachelist and dodnsquery
 *  Ndtypes made constant
 *  Return failure flag and ignore -ve TYPE_ANY responses in dns_query()
 *  Removed surplus pwait() and counter in dfile_search()
 *  resolve_rr() doesn't return CNAME or PTR records (JNOS)
 *  Fixed resolve_mx() to be RFC compliant and streamlined
 *  Added are_we_an_mx() function for SMTP client
 *  Added ANY to dtype()
 *  Added new functions for MX and multi A record handling

domhdr.c

 *  Fixed DSERVER conditionals
 *  Overrun checks in dn_expand()

enet.c

 *  Fixed warning under BC4

files.c

 *  Added more conditionals

finger.c

 *  Added long finger support (finger -l sends /W)
 *  Tidied screen output and tprintfs

fingerd.c

 *  Improved logging
 *  Added /w detection for finger -l
 *  Check for recv fail

ftpcli.c

 *  Fixed BC4 warnings
 *  Tidied logging; log transfer rates, failures and STORs
 *  Close socket on connect failure
 *  Fix memory leak in doftp()
 *  Added delete/rm and rename/mv commands
 *  Added stripdir opt to strip off directory from paths
 *  Tidied printfs

ftpserv.c

 *  Fixed BC4 warning

ftpsubr.c

 *  Added hash flushing under TextWin

icmp.c

 *  All printfs to tprintfs

iface.c

 *  Added ENCAP conditionals (JNOS)
 *  Removed unused ifrxbuf() (JNOS)
 *  Fixed metric in ifnetmsk() (JNOS)
 *  Added mode check in setencap() (JNOS)
 *  Don't allow loopback addr change (JNOS)
 *  Case insensitive i/face name in if_lookup() (JNOS)

ip.c

 *  Fixed BC4 warning
 *  Length check in iprecv() (JNOS)
 *  ENCAP conditionals (JNOS)
 *  Fixed raw_ip() prototype

iphdr.c

 *  Cast to fix BC4 warning

iproute.c

 *  Throws away IP packets when memory very low
 *  Added ENCAP conditionals (JNOS)
 *  Added better Loopback checks and route mergeing (JNOS)
 *  printf to tprintf
 *  Added recursive check for Encap i/f in ip_mtu() (PK)
 *  RIP conditional on rt_merge()

kernel.c

 *  Fixed out of range constant in psignal()
 *  Added STACK_CHECK configurable to replace Stkchk
 *  Added main stack details to command session (JNOS)

ksubr.c

 *  Replaced jmpbuf access with macros (portability, BC4)
 *  Added PSP to 'ps' output
 *  Tidied tprintfs
 *  Fixed psetup() prototype
 *  Added OS/2 to Tasker list (needs support in pcgen.asm)
 *  Added STACK_CHECK conditional on chkstk()

mailbox.c

 *  Added MAILBOX conditionals
 *  Removed Cmds[] declaration (now in cmdparse.h)
 *  Removed surplus tab handling in rewrite_address() and rewriting recursion
    check in attempt to avoid infinitely recursing on malformed lines

main.c

 *  Merged TextWin conditionals
 *  Removed Demon support from opening banner, added my address, build date
 *  Local time displayed on startup
 *  Cmds[] prototype moved to cmdparse.h
 *  BC++ v4.0x bug-fix to avoid C++ exception handling libs.
 *  Increase display process stack
 *  shuttrace() only called if TRACE defined
 *  Fixed trailing dot in dohostname()
 *  mallocw() rather than unchecked malloc() in dosource()
 *  domode() removed - unused function
 *  doremote() made conditional (REMOTE)

mbuf.c

 *  Added PI conditional (unused, removes DMA page alignment check)
 *  Fix recurse problem in free_buf() (JNOS)

nettime.c

 *  'time server' takes a hostname, IP address resolved when required
 *  'time read' and 'time set' run in background
 *  Added connect and receive timeout to prevent hanging
 *  Time correction shown in local time
 *  Fixed correction log entry
 *  min/max correction consistently handled as longs

pathname.c

 *  Fixed malloc string size in pathname()

pc.c

 *  Merged TextWin conditional code
 *  Fixed #endif warning
 *  Tick volatile (modified by interrupt)
 *  Fixed BC4 warnings in secclock() and msclock()
 *  Added JNOS code in secclock() and msclock() to improve accuracy for isAT=0
 *  Added dobackg() return type
 *  Reduced _stklen to 2048, not much actually runs on the main stack
 *  Slightly better midnight check in pctick() to avoid timer problems (JNOS)
 *  Added SmartDrive[tm] flush function to commit write cache to disk
 *  Rawterm open change (JNOS)
 *  Record file \r fix (JNOS)

pktdrvr.c

 *  Fixed BC4 warnings

pop3fngr.c

 *  New module - POP3 long finger client using Demon's proprietary *ENV
    command.  Usage is 'sdps <account> <passwd> [smtp]'.  'smtp' as the third
    argument does a 'start smtp' after the end-of-session key press.

ppp.c

 *  Fixed BC4 warning
 *  Added TRACE conditionals and dummy macros
 *  Increased ppp_recv (sl0 receive) stack to prevent overrun with PAP+trace
 *  Notify line drop to console

pppcmd.c

 *  Log idle timeout event
 *  Tidied tprintfs

pppfsm.c

 *  Added TRACE conditionals
 *  Log peer's termination request
 *  State machine changes to comply with RFC1661
 *  Moved default active open so passive can be configured if required

pppipcp.c

 *  Fixed BC4 warnings
 *  Added TRACE conditionals
 *  Added IPCP Type 3 Address option negotiation
 *  Fixed option processing bug
 *  Tidied tprintfs
 *  Tidied doscript()

ppplcp.c

 *  Fixed BC4 warnings
 *  Added TRACE conditional
 *  Fixed option processing bug

ppppap.c

 *  Added TRACE conditionals
 *  Tidied tprintfs
 *  Added PAP_SESSION configurable for PAP login to run in new session
 *  Less screen output with PAP_SESSION undefined

rip.c

 *  Fixed BC4 warning
 *  Added RIP conditional on rt_timeout() to prevent link clash

rlogin.c

 *  Fixed BC4 warning

session.c

 *  Added TextWin conditionals
 *  Added Archie configurables
 *  Fixed warning in newsession()
 *  Tidied tprintfs

slhc.c

 *  Fixed BC4 warnings

smisc.c

 *  Added REMOTE and REMOTED conditionals

sockuser.c

 *  Fixed BC4 warning
 *  Current NULL check in tflush()
 *  Removed unused NETROM code
 *  Fixed ASCII EOL check in recvchar() for \r\r\n returning \n\n
 *  Tidied keywait()

tcpin.c

 *  Fixed BC4 warnings
 *  Log unknown port open attempts
 *  Removed check for listen on specific addresses (JNOS)
 *  Removed precedence check (JNOS)
 *  Restart slow-start on source quench (JNOS)
 *  Window probing segment acceptance checks (PK's export v951123)

tcpout.c

 *  Fixed BC4 warning

tcpsubr.c

 *  Fixed BC4 warning
 *  printf to tprintf

tcptimer.c

 *  Preserve ptr in tcp_timeout() (PK's export v951123)

tcpuser.c

 *  Fixed NULL ptr deref in reset_all() (from todo list)
 *  Fixed open_tcp() prototype
 *  Bug fix in open_tcp() to prevent multiple servers (on one socket?) (JNOS)
 *  Reset backoff in kick_tcp() (from PK's export v951123)

telnet.c

 *  Fixed bug which reset all other FILE.flags when setting binary mode
    (caused record to fail with rs.internic.net at login: ?)
 *  Fixed warnings on IAC

textwin.c

 *  Added ip.h to fix warning
 *  Inline asm constants to C style to fix cpp problem

textwinc.c

 *  Added ip.h to fix warning

textwind.c

 *  Fixed BC4 warning

trace.c

 *  Fixed trace file display for headers only
 *  Use global Nospace rather than local static
 *  Tidied fprintf/fputs
 *  Use time_t for time functions
 *  Added MS_TIMER conditional to add millisecond clock to trace log

ttydriv.c

 *  Merged TextWin conditionals
 *  Added macros to simplify TW and standard builds

tzset.c

 *  Removed unused tzsetwall()
 *  Added public _monthDay to fix link conflict
 *  Fixed long = int * int cast in getsecs()
 *  Fixed declarations to match Borland headers
 *  Defaults to GMT and EU last Sunday rules

udp.c

 *  Log unknown port probes (LOG_UNKNOWN_PORTS)
 *  Fixed open_udp prototype

udpdump.c

 *  Added RIP conditional to prevent pulling in RIP code

udphdr.c

 *  Fixed BC4 warnings

version.c

 *  Updated version number - adds TW and Build name, if defined

wildmat.c

 *  Additions from wildmat(3) from INN1.4unoff4 to handle ']' and '-'
    within [...]  ']' must be first in set, '-' can be first or last.
 *  Added configurable conditionals
 *  Added early abort code from INN wildmat to reduce recursions need for
    multiple stars, removed Star() function, renamed wildmat() to DoMatch()
    and added new wildmat() user function
 *  Tidied test driver code

-------------------

To finish commenting:

nntpcli.c

 *

smtpcli.c

 *

smtpserv.c

 *