/*
 * -----------------------------------------------------------------------------------
 *  Updated AGAIN on January 29, 2001 - The tnos user prompt was not coming back to us
 *  after a telnet session was closed off. Instead, TNOS would simply disconnect us,
 *  forcing the KLMProxy user to reattach to the gateway again. This should be the last
 *  update to the patch for the next little while. It seems to do the trick now. If you
 *  have a patch file dated earlier than this one, please discard it and use this one.
 * -----------------------------------------------------------------------------------
 *  Updated on January 25, 2001 - Found a bug in the patch (a bad one). If you have a
 *  previous version of this file, then discard it and use this one instead. Thanks.
 * -----------------------------------------------------------------------------------
 *
 * This file contains a code patch for TNOS 2.30
 *
 * The code patch addes an option to the dombtelnet function, enabling
 * a BBS user to force RAW (binary) mode on an outgoing telnet session.
 *
 * It is by no means the final patch, but it does work, allowing me to
 * use KLMProxy with our local internet gateway running TNOS 2.30.
 *
 * This patch could easily be used on any earlier version of TNOS, as
 * well as JNOS, and other NOS implementations. The changes are minor
 * and not difficult to figure out.
 * 
 * January 11, 2001, Maiko Langelaar, VE4KLM
 *
 * Files that require patching are summarized below :
 *
 * mailbox.h  - prototype definition for the gw_connect () function
 * mailbox.c  - 
 * mailbox2.c -
 *
 * make.inc   - add -DVE4KLM_MODS in order to compile in the new changes
 *
 * Makefile   - added another directive to make compiling and linking of tnos
 *              faster. Our Makefile for some reason does a MASS COMPILE each
 *              time I make a small change to ONE c file. See next paragraph,
 *              on how to do a speedy compile and link using this new directive.
 *
 * To compile and relink the new changes into a new TNOS binary, simply do :
 *
 *   make servers.a
 *   make quicknos
 *
 * The patch information is shown further below (using the unix DIFF command). If
 * this is too cryptic for you, then send me an email, and I'll send you a TAR file
 * (ask for patches.tar) which contains the TNOS source files that I changed. My
 * modifications are embraced with the '#ifdef KLM_MODS' compiler directive.
 *
 * That's it! If you find any of this overwhelming, then send me your source files,
 * and I'll do it for you.
 *
 * 73 de Maiko Langelaar, VE4KLM
 * Winnipeg, Manitoba, Canada.
 *
 * Patch information (using the unix DIFF command) is below ...
 *
 */

1) diff mailbox.h ../tnos.org/mailbox.h

  218,220d217
  < #ifdef VE4KLM_MODS
  < int gw_connect (struct mbx *m,int s,struct sockaddr *fsocket,int len, int raw);
  < #else
  222d218
  < #endif

2) diff mailbox.c ../tnos.org/mailbox.c

  135a136
  >
  1763c1764
  <       { "Telnet",     dombtelnet,             0, 2, "Telnet hostname *port *r" },
  ---
  >       { "Telnet",     dombtelnet,             0, 2, "T hostname" },
  3863,3865d3863
  < #ifdef VE4KLM_MODS
  < gw_connect (struct mbx *m, int s, struct sockaddr *fsocket, int len, int raw_i)
  < #else
  3867d3864
  < #endif
  3889,3896d3885
  < #ifdef VE4KLM_MODS
  <       if (raw_i)
  <       {
  <               tputs ("raw...");
  <               m->privs |= NO_ESCAPE;
  <       }
  < #endif
  <
  3909,3918c3898,3899
  <
  < #ifdef VE4KLM_MODS
  <       if (!raw_i)
  <       {
  < #endif
  <               if ((fsocket->sa_family != AF_NETROM) && (fsocket->sa_family != AF_AX25))
  <                       m->privs &= ~NO_ESCAPE;
  < #ifdef VE4KLM_MODS
  <       }
  < #endif
  ---
  >       if ((fsocket->sa_family != AF_NETROM) && (fsocket->sa_family != AF_AX25))
  >               m->privs &= ~NO_ESCAPE;
  3971,3975d3951
  <
  < /* Need ability to get back to pbbs prompt */
  < #ifdef VE4KLM_MODS
  <               if ((m->privs & NO_ESCAPE) && !raw_i)
  < #else
  3977d3952
  < #endif
  4066,4070d4040
  <
  < /* Need ability to get back to pbbs prompt */
  < #ifdef VE4KLM_MODS
  <       if ((m->privs & NO_ESCAPE) && !raw_i)
  < #else
  4072d4041
  < #endif
  4114,4116c4083
  <
  <               if ((m->privs & NO_ESCAPE) || (c != IAC))
  <               {
  ---
  >               if ((m->privs & NO_ESCAPE) || (c != IAC)) {
  4865,4867d4831
  < #ifdef VE4KLM_MODS
  <               return gw_connect (m, s, (struct sockaddr *) &fsocket, sizeof (struct sockaddr_nr), 0);
  < #else
  4869d4832
  < #endif
  4939,4941d4901
  < #ifdef VE4KLM_MODS
  <               return gw_connect (m, s, (struct sockaddr *) &afsocket, sizeof (struct sockaddr_ax), 0);
  < #else
  4943d4902
  < #endif

3) diff mailbox2.c ../tnos.org/mailbox2.c

  360a361,362
  >
  >
  803,806d804
  < #ifdef VE4KLM_MODS
  < int raw_i = 0;
  < #endif
  <
  823,829d820
  < #ifdef VE4KLM_MODS
  <       if (argc == 4 && argv[3][0] == 'r')
  <               raw_i = 1;
  <       else
  <               raw_i = 0;
  < #endif
  <
  895,897d885
  < #ifdef VE4KLM_MODS
  <       return gw_connect (m, s, (struct sockaddr *) &fsocket, SOCKSIZE, raw_i);
  < #else
  899d886
  < #endif

4) diff make.inc ../tnos.org/make.inc

  1c1
  < CC = gcc -DVE4KLM_MODS
  ---
  > CC = gcc

5) diff Makefile ../tnos.org/Makefile

  346,351d345
  < quicknos :
  <       echo --- Indexing All Archives
  <       $(RANLIB) $(LIBS)
  <       echo --- Linking: $(NOS)
  <       $(CC) $(CFLAGS) -o $(NOS) $(REQUIRED) $(LIBS) $(LCURSES) $(DBGLIB) $(LSQL) $(SYSLIBS)
  <