Home » Archimedes archive » Acorn User » AU 1997-Xmas B.adf » PD » NetPlex/!Netplex/SocketFS/C/Nameproc

NetPlex/!Netplex/SocketFS/C/Nameproc

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

Tape/disk: Home » Archimedes archive » Acorn User » AU 1997-Xmas B.adf » PD
Filename: NetPlex/!Netplex/SocketFS/C/Nameproc
Read OK:
File size: 27F3 bytes
Load address: 0000
Exec address: 0000
File contents
/***************************************************************************/
/* Program       : SocketFS                                                */
/* Purpose       : Treat Internet sockets as file streams                  */
/* File          : Nameproc.c                                              */
/* Author        : R G Gammans                                             */
/* Date Created  : 04-07-97                                                */
/* Last Edited   : 07-09-97                                                */
/*                                                                         */
/* Copyright Date: July 1997 (C) R G Gammans                               */
/*                                                                         */
/***************************************************************************/
/*
 *   SocketFS - BSD sockets filing system for RISC-OS.
 *   Copyright (C) 1997 Roger G Gammans
 *
 *   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 of the License, or
 *   (at your option) any later version.
 *
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *   Author: R Gammans <rgammans@compsurg,demon.co.uk>
 *   Snailmail  : 20 Trenches Rd, Crowborough, E Sussex, TN6 1ES UK.
 */


#include <stdio.h>
#include <sys/param.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <netdb.h>
#include <pwd.h>
#include <sys/syslog.h>
#include <sys/wait.h>
#include <sgtty.h>
#include <ctype.h>
#include <errnum.h>
#include <string.h>

#ifndef FIOMODE
#define FIOMODE FIOSLEEPTW
#endif

#ifdef DEBUG
#include "trackerlib.h"
#endif


 /*
  * Most the code in here is pretty naff but it works.
  *
  * At some point this lot may as well be re-written in asm,
  * which will remove our dependendcy on stubs/sharedclib.
  *
  * Also the exceutable will drop in size considerably
  */
typedef
  struct {
         int   addr_family;
         int   proto_family;

         char* special_field;
         int (*makesocket)(char* fname);

          } Thandler_struct;


typedef
  struct TS_hand {
          Thandler_struct *data;
          struct TS_hand *next;
         } Thandler_list;

Thandler_list *handler_list_root;
char* errstr;

Thandler_struct IPhandler,fdhandler;
Thandler_list   IPouter,fdouter;



int makeInetStream(char* filename);
int sock2fd(char* filename);

void inithandlerlist()
  {
    IPhandler.special_field="IPv4";
    IPhandler.makesocket=makeInetStream;
    fdhandler.special_field="s2fd";
    fdhandler.makesocket=sock2fd;
    IPouter.data=&IPhandler;
    IPouter.next=&fdouter;
    fdouter.data=&fdhandler;
    fdouter.next=NULL;
    handler_list_root=&IPouter;
  }

int  makeSocket(char* specialfield,char* filename)
  {
    int             a_socket;
    Thandler_list   *traversee;
    int             found;

    if (!specialfield)
      {
        /*Default AF_INET*/
        specialfield="IPv4";

#ifdef DEBUG
tracker_simple(" - special reset to \"IPv4\" (or is it)\n");
#endif
      };

    traversee=handler_list_root;
    found=0;
    while ((traversee!=NULL) && !found) {
      found=!strcmp(specialfield,traversee->data->special_field);
       if (traversee!=NULL && !found) {
         traversee=traversee->next;
       }
    }

    if (!found)
      {
         /*File not found..      */
        a_socket=-1;
      }
      else
      {
#ifdef DEBUG
tracker_simple("About the call makesocket for af..\n");
#endif
        a_socket=traversee->data->makesocket(filename);
      }

    return a_socket;
  }


int makeInetStream(char* filename)
 {
   /* The aim here is two extract protocol over which where opening the
    * connection. (assuming ICMP/TCP/UDP.)
    * We also need to extract the host:port designation of both ends.
    *
    * We do this by processing each directory in turn.
    * eg. socket#IPv4::Tcp.$.www/demon/co/uk\80        -Talk to a Httpd - from any port.
    *    socket#IPv4::Tcp.$.192/168/0/3\515.auto\768  -Talk to my lpd server.. from a resvered port
    */

   char   *section,*divisor,*serv,*tmpptr;
   char   proto[99],lcl_host[255],lcl_serv[255],rem_host[255],rem_serv[255];
   struct hostent *hp;
   struct servent *sp;
   struct sockaddr_in sin,sout;
   int    s;
   char   olddiv;
   int    one =1;

   section=strstr(filename,":"); /*Should be 1st char */
   divisor=strstr(filename,".$.");
   if (!divisor)
     return -1;

   *divisor='\0';
   strcpy(proto,section+1);
#ifdef DEBUG
   tracker_printf("Protocol = %s\n",proto);
#endif
   *divisor='.';
   section=divisor+3;

   serv=strstr(section,"\\");
   divisor=strstr(section,".");

   if ((divisor) && (divisor<serv) || !serv)
     {
      /*
       * We must have both a port and a host at the
       * remote end.
       */

      return -1;
     }
     else
     {
      /* '\' in the remote part*/

       if (divisor) {
         olddiv= *divisor;
         *divisor='\0';
       }
       strcpy(rem_serv,serv+1);
       if (divisor)
          *divisor=olddiv;
#ifdef DEBUG
   tracker_printf("Remote port name = %s\n",rem_serv);
#endif
       olddiv=*serv;
       *serv='\0';
       strcpy(rem_host,section);
       *serv=olddiv;
#ifdef DEBUG
   tracker_printf("Remote host part = %s\n",rem_host);
#endif
      /* Do '.' and '/' replacement. */

       tmpptr=rem_host;
       while (*tmpptr!='\0') {
         if (*tmpptr=='/')
           {
             *tmpptr='.';
           }
         tmpptr++;
       }
#ifdef DEBUG
   tracker_printf("Remote host = %s\n",rem_host);
#endif
       hp=gethostbyname(rem_host);
       if (hp == NULL) {
         errstr="Can't find remote interface\n";
         return -1;
       }

       bzero((char *)&sin, sizeof(sin));
       bcopy(hp->h_addr, (caddr_t)&sin.sin_addr, hp->h_length);
       sin.sin_family= hp->h_addrtype;
       sin.sin_port=htons(atoi(rem_serv));

       /* There is an implicit assumation here that our hosts */
       /* and network representations of 0 are the same       */
       /* This will be true for all big & little endian       */
       /* machines, which use 2's complement                  */
       if (sin.sin_port==0) {
         sp=getservbyname(rem_serv,proto);
         if (sp == NULL) {
           errstr="Can't resolve remote service\n";
           return -1;
          }
         sin.sin_port  = sp->s_port;
        }
#ifdef DEBUG
tracker_printf("Remote port no = %d\n",ntohs(sin.sin_port));
#endif
       }

     if (*divisor=='\0')
      {
#ifdef DEBUG
tracker_simple("Creating socket... ");
#endif
        s=socket(AF_INET,SOCK_STREAM,0);
#ifdef DEBUG
tracker_simple("done\n");
#endif
        if (s==-1) return s;
      }
      else
      {
       section=divisor+1;
       serv=strstr(section,"\\");

       if (!serv)
         {
         /*
          * No '\' in local part....
          * Currently we ignore all then!
          */

         s=socket(AF_INET,SOCK_STREAM,0);
         }

         else
         {
         /* '\' in the local part */
#ifdef DEBUG
tracker_printf("local port specified - %s\n",section);
#endif

          *divisor='\0';
          strcpy(lcl_serv,serv+1);

#ifdef DEBUG
   tracker_printf("Local port name = %s\n",lcl_serv);
#endif
          *serv='\0';
          strcpy(lcl_host,section);

#ifdef DEBUG
   tracker_printf("Local Host part = %s\n",lcl_host);
#endif
          /*Do '.' and '/' replacement.*/
          tmpptr=lcl_host;
          while (*tmpptr=='\0') {
            if (*tmpptr=='/')
              {
                *tmpptr='.';
              }
          }

#ifdef DEBUG
   tracker_printf("Local host = %s\n",lcl_host);
#endif
          if (!strcmp(lcl_host,"auto")) {
            gethostname(lcl_host,sizeof(lcl_host));
            lcl_host[sizeof(lcl_host)-1]='\0';
          }

          hp=gethostbyname(lcl_host);
          if (hp == NULL) {
            errstr="Can't find local interface\n";
            return -1;
          }

          s=socket(AF_INET,SOCK_STREAM,0);
          if (s==-1) return s;

          bzero((char *)&sout, sizeof(sout));
          bcopy(hp->h_addr, (caddr_t)&sout.sin_addr, hp->h_length);
          sout.sin_family= hp->h_addrtype;
#ifdef DEBUG
tracker_printf("Local i/f  = %s\n",lcl_host);
#endif

          if (strcmp(lcl_serv,"auto")) {
            sout.sin_port=htons(atoi(lcl_serv));

       /* There is an implicit assumation here that our hosts */
       /* and the network representations of 0 are the same   */
       /* This will be true for all big & little endian       */
       /* machines, which use 2's complement.                 */
            if (sout.sin_port==0) {
              sp=getservbyname(lcl_serv,proto);
              if (sp == NULL) {
                errstr="Can't resolve local service\n";
                return -1;
               }
              sout.sin_port  = sp->s_port;
            }
          }
#ifdef DEBUG
tracker_printf("Remote port no = %d\n",ntohs(sin.sin_port));
#endif

#ifdef DEBUG
tracker_simple("trying to bind socket .... ");
#endif
            if (bind(s,&sout,sizeof(sout))==-1) return -1;
#ifdef DEBUG
tracker_simple("done\n");
#endif


         }
      }
    ioctl(s,FIOMODE,&one);
#ifdef DEBUG
tracker_simple("trying to connect .... ");
#endif
    if (connect(s,&sin,sizeof(sin))==-1) return -1;
#ifdef DEBUG
tracker_simple("done\n");
#endif
    return s;
 }


int sock2fd(char* filename)
 {
   char *flags,*desc;

   flags=strstr(filename,":"); /*Should be 1st char */
   desc=strstr(filename,".$.");
   if (!desc)
     return -1;
   if isdigit(desc[3])
   {
     return atoi(desc[3]);
   }

   return -1;
   /*We ignore the meaning of the flags section currently */
 }
00000000  2f 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |/***************|
00000010  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00000040  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2f 0a 2f 2a  |************/./*|
00000050  20 50 72 6f 67 72 61 6d  20 20 20 20 20 20 20 3a  | Program       :|
00000060  20 53 6f 63 6b 65 74 46  53 20 20 20 20 20 20 20  | SocketFS       |
00000070  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
*
00000090  20 20 20 20 20 20 20 20  20 2a 2f 0a 2f 2a 20 50  |         */./* P|
000000a0  75 72 70 6f 73 65 20 20  20 20 20 20 20 3a 20 54  |urpose       : T|
000000b0  72 65 61 74 20 49 6e 74  65 72 6e 65 74 20 73 6f  |reat Internet so|
000000c0  63 6b 65 74 73 20 61 73  20 66 69 6c 65 20 73 74  |ckets as file st|
000000d0  72 65 61 6d 73 20 20 20  20 20 20 20 20 20 20 20  |reams           |
000000e0  20 20 20 20 20 20 20 2a  2f 0a 2f 2a 20 46 69 6c  |       */./* Fil|
000000f0  65 20 20 20 20 20 20 20  20 20 20 3a 20 4e 61 6d  |e          : Nam|
00000100  65 70 72 6f 63 2e 63 20  20 20 20 20 20 20 20 20  |eproc.c         |
00000110  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
*
00000130  20 20 20 20 20 2a 2f 0a  2f 2a 20 41 75 74 68 6f  |     */./* Autho|
00000140  72 20 20 20 20 20 20 20  20 3a 20 52 20 47 20 47  |r        : R G G|
00000150  61 6d 6d 61 6e 73 20 20  20 20 20 20 20 20 20 20  |ammans          |
00000160  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
*
00000180  20 20 20 2a 2f 0a 2f 2a  20 44 61 74 65 20 43 72  |   */./* Date Cr|
00000190  65 61 74 65 64 20 20 3a  20 30 34 2d 30 37 2d 39  |eated  : 04-07-9|
000001a0  37 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |7               |
000001b0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
*
000001d0  20 2a 2f 0a 2f 2a 20 4c  61 73 74 20 45 64 69 74  | */./* Last Edit|
000001e0  65 64 20 20 20 3a 20 30  37 2d 30 39 2d 39 37 20  |ed   : 07-09-97 |
000001f0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
*
00000210  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 2a  |               *|
00000220  2f 0a 2f 2a 20 20 20 20  20 20 20 20 20 20 20 20  |/./*            |
00000230  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
*
00000260  20 20 20 20 20 20 20 20  20 20 20 20 20 2a 2f 0a  |             */.|
00000270  2f 2a 20 43 6f 70 79 72  69 67 68 74 20 44 61 74  |/* Copyright Dat|
00000280  65 3a 20 4a 75 6c 79 20  31 39 39 37 20 28 43 29  |e: July 1997 (C)|
00000290  20 52 20 47 20 47 61 6d  6d 61 6e 73 20 20 20 20  | R G Gammans    |
000002a0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
000002b0  20 20 20 20 20 20 20 20  20 20 20 2a 2f 0a 2f 2a  |           */./*|
000002c0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
*
00000300  20 20 20 20 20 20 20 20  20 2a 2f 0a 2f 2a 2a 2a  |         */./***|
00000310  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00000350  2a 2a 2a 2a 2a 2a 2a 2a  2f 0a 2f 2a 0a 20 2a 20  |********/./*. * |
00000360  20 20 53 6f 63 6b 65 74  46 53 20 2d 20 42 53 44  |  SocketFS - BSD|
00000370  20 73 6f 63 6b 65 74 73  20 66 69 6c 69 6e 67 20  | sockets filing |
00000380  73 79 73 74 65 6d 20 66  6f 72 20 52 49 53 43 2d  |system for RISC-|
00000390  4f 53 2e 0a 20 2a 20 20  20 43 6f 70 79 72 69 67  |OS.. *   Copyrig|
000003a0  68 74 20 28 43 29 20 31  39 39 37 20 52 6f 67 65  |ht (C) 1997 Roge|
000003b0  72 20 47 20 47 61 6d 6d  61 6e 73 0a 20 2a 0a 20  |r G Gammans. *. |
000003c0  2a 20 20 20 54 68 69 73  20 70 72 6f 67 72 61 6d  |*   This program|
000003d0  20 69 73 20 66 72 65 65  20 73 6f 66 74 77 61 72  | is free softwar|
000003e0  65 3b 20 79 6f 75 20 63  61 6e 20 72 65 64 69 73  |e; you can redis|
000003f0  74 72 69 62 75 74 65 20  69 74 20 61 6e 64 2f 6f  |tribute it and/o|
00000400  72 20 6d 6f 64 69 66 79  0a 20 2a 20 20 20 69 74  |r modify. *   it|
00000410  20 75 6e 64 65 72 20 74  68 65 20 74 65 72 6d 73  | under the terms|
00000420  20 6f 66 20 74 68 65 20  47 4e 55 20 47 65 6e 65  | of the GNU Gene|
00000430  72 61 6c 20 50 75 62 6c  69 63 20 4c 69 63 65 6e  |ral Public Licen|
00000440  73 65 20 61 73 20 70 75  62 6c 69 73 68 65 64 20  |se as published |
00000450  62 79 0a 20 2a 20 20 20  74 68 65 20 46 72 65 65  |by. *   the Free|
00000460  20 53 6f 66 74 77 61 72  65 20 46 6f 75 6e 64 61  | Software Founda|
00000470  74 69 6f 6e 3b 20 65 69  74 68 65 72 20 76 65 72  |tion; either ver|
00000480  73 69 6f 6e 20 32 20 6f  66 20 74 68 65 20 4c 69  |sion 2 of the Li|
00000490  63 65 6e 73 65 2c 20 6f  72 0a 20 2a 20 20 20 28  |cense, or. *   (|
000004a0  61 74 20 79 6f 75 72 20  6f 70 74 69 6f 6e 29 20  |at your option) |
000004b0  61 6e 79 20 6c 61 74 65  72 20 76 65 72 73 69 6f  |any later versio|
000004c0  6e 2e 0a 20 2a 0a 20 2a  0a 20 2a 20 20 20 54 68  |n.. *. *. *   Th|
000004d0  69 73 20 70 72 6f 67 72  61 6d 20 69 73 20 64 69  |is program is di|
000004e0  73 74 72 69 62 75 74 65  64 20 69 6e 20 74 68 65  |stributed in the|
000004f0  20 68 6f 70 65 20 74 68  61 74 20 69 74 20 77 69  | hope that it wi|
00000500  6c 6c 20 62 65 20 75 73  65 66 75 6c 2c 0a 20 2a  |ll be useful,. *|
00000510  20 20 20 62 75 74 20 57  49 54 48 4f 55 54 20 41  |   but WITHOUT A|
00000520  4e 59 20 57 41 52 52 41  4e 54 59 3b 20 77 69 74  |NY WARRANTY; wit|
00000530  68 6f 75 74 20 65 76 65  6e 20 74 68 65 20 69 6d  |hout even the im|
00000540  70 6c 69 65 64 20 77 61  72 72 61 6e 74 79 20 6f  |plied warranty o|
00000550  66 0a 20 2a 20 20 20 4d  45 52 43 48 41 4e 54 41  |f. *   MERCHANTA|
00000560  42 49 4c 49 54 59 20 6f  72 20 46 49 54 4e 45 53  |BILITY or FITNES|
00000570  53 20 46 4f 52 20 41 20  50 41 52 54 49 43 55 4c  |S FOR A PARTICUL|
00000580  41 52 20 50 55 52 50 4f  53 45 2e 20 20 53 65 65  |AR PURPOSE.  See|
00000590  20 74 68 65 0a 20 2a 20  20 20 47 4e 55 20 47 65  | the. *   GNU Ge|
000005a0  6e 65 72 61 6c 20 50 75  62 6c 69 63 20 4c 69 63  |neral Public Lic|
000005b0  65 6e 73 65 20 66 6f 72  20 6d 6f 72 65 20 64 65  |ense for more de|
000005c0  74 61 69 6c 73 2e 0a 20  2a 0a 20 2a 20 20 20 59  |tails.. *. *   Y|
000005d0  6f 75 20 73 68 6f 75 6c  64 20 68 61 76 65 20 72  |ou should have r|
000005e0  65 63 65 69 76 65 64 20  61 20 63 6f 70 79 20 6f  |eceived a copy o|
000005f0  66 20 74 68 65 20 47 4e  55 20 47 65 6e 65 72 61  |f the GNU Genera|
00000600  6c 20 50 75 62 6c 69 63  20 4c 69 63 65 6e 73 65  |l Public License|
00000610  0a 20 2a 20 20 20 61 6c  6f 6e 67 20 77 69 74 68  |. *   along with|
00000620  20 74 68 69 73 20 70 72  6f 67 72 61 6d 3b 20 69  | this program; i|
00000630  66 20 6e 6f 74 2c 20 77  72 69 74 65 20 74 6f 20  |f not, write to |
00000640  74 68 65 20 46 72 65 65  20 53 6f 66 74 77 61 72  |the Free Softwar|
00000650  65 0a 20 2a 20 20 20 46  6f 75 6e 64 61 74 69 6f  |e. *   Foundatio|
00000660  6e 2c 20 49 6e 63 2e 2c  20 36 37 35 20 4d 61 73  |n, Inc., 675 Mas|
00000670  73 20 41 76 65 2c 20 43  61 6d 62 72 69 64 67 65  |s Ave, Cambridge|
00000680  2c 20 4d 41 20 30 32 31  33 39 2c 20 55 53 41 2e  |, MA 02139, USA.|
00000690  0a 20 2a 0a 20 2a 20 20  20 41 75 74 68 6f 72 3a  |. *. *   Author:|
000006a0  20 52 20 47 61 6d 6d 61  6e 73 20 3c 72 67 61 6d  | R Gammans <rgam|
000006b0  6d 61 6e 73 40 63 6f 6d  70 73 75 72 67 2c 64 65  |mans@compsurg,de|
000006c0  6d 6f 6e 2e 63 6f 2e 75  6b 3e 0a 20 2a 20 20 20  |mon.co.uk>. *   |
000006d0  53 6e 61 69 6c 6d 61 69  6c 20 20 3a 20 32 30 20  |Snailmail  : 20 |
000006e0  54 72 65 6e 63 68 65 73  20 52 64 2c 20 43 72 6f  |Trenches Rd, Cro|
000006f0  77 62 6f 72 6f 75 67 68  2c 20 45 20 53 75 73 73  |wborough, E Suss|
00000700  65 78 2c 20 54 4e 36 20  31 45 53 20 55 4b 2e 0a  |ex, TN6 1ES UK..|
00000710  20 2a 2f 0a 0a 0a 23 69  6e 63 6c 75 64 65 20 3c  | */...#include <|
00000720  73 74 64 69 6f 2e 68 3e  0a 23 69 6e 63 6c 75 64  |stdio.h>.#includ|
00000730  65 20 3c 73 79 73 2f 70  61 72 61 6d 2e 68 3e 0a  |e <sys/param.h>.|
00000740  23 69 6e 63 6c 75 64 65  20 3c 73 79 73 2f 66 69  |#include <sys/fi|
00000750  6c 65 2e 68 3e 0a 23 69  6e 63 6c 75 64 65 20 3c  |le.h>.#include <|
00000760  73 79 73 2f 73 74 61 74  2e 68 3e 0a 23 69 6e 63  |sys/stat.h>.#inc|
00000770  6c 75 64 65 20 3c 73 79  73 2f 73 6f 63 6b 65 74  |lude <sys/socket|
00000780  2e 68 3e 0a 23 69 6e 63  6c 75 64 65 20 3c 73 79  |.h>.#include <sy|
00000790  73 2f 69 6f 63 74 6c 2e  68 3e 0a 23 69 6e 63 6c  |s/ioctl.h>.#incl|
000007a0  75 64 65 20 3c 73 79 73  2f 75 6e 2e 68 3e 0a 23  |ude <sys/un.h>.#|
000007b0  69 6e 63 6c 75 64 65 20  3c 6e 65 74 69 6e 65 74  |include <netinet|
000007c0  2f 69 6e 2e 68 3e 0a 23  69 6e 63 6c 75 64 65 20  |/in.h>.#include |
000007d0  3c 6e 65 74 64 62 2e 68  3e 0a 23 69 6e 63 6c 75  |<netdb.h>.#inclu|
000007e0  64 65 20 3c 70 77 64 2e  68 3e 0a 23 69 6e 63 6c  |de <pwd.h>.#incl|
000007f0  75 64 65 20 3c 73 79 73  2f 73 79 73 6c 6f 67 2e  |ude <sys/syslog.|
00000800  68 3e 0a 23 69 6e 63 6c  75 64 65 20 3c 73 79 73  |h>.#include <sys|
00000810  2f 77 61 69 74 2e 68 3e  0a 23 69 6e 63 6c 75 64  |/wait.h>.#includ|
00000820  65 20 3c 73 67 74 74 79  2e 68 3e 0a 23 69 6e 63  |e <sgtty.h>.#inc|
00000830  6c 75 64 65 20 3c 63 74  79 70 65 2e 68 3e 0a 23  |lude <ctype.h>.#|
00000840  69 6e 63 6c 75 64 65 20  3c 65 72 72 6e 75 6d 2e  |include <errnum.|
00000850  68 3e 0a 23 69 6e 63 6c  75 64 65 20 3c 73 74 72  |h>.#include <str|
00000860  69 6e 67 2e 68 3e 0a 0a  23 69 66 6e 64 65 66 20  |ing.h>..#ifndef |
00000870  46 49 4f 4d 4f 44 45 0a  23 64 65 66 69 6e 65 20  |FIOMODE.#define |
00000880  46 49 4f 4d 4f 44 45 20  46 49 4f 53 4c 45 45 50  |FIOMODE FIOSLEEP|
00000890  54 57 0a 23 65 6e 64 69  66 0a 0a 23 69 66 64 65  |TW.#endif..#ifde|
000008a0  66 20 44 45 42 55 47 0a  23 69 6e 63 6c 75 64 65  |f DEBUG.#include|
000008b0  20 22 74 72 61 63 6b 65  72 6c 69 62 2e 68 22 0a  | "trackerlib.h".|
000008c0  23 65 6e 64 69 66 0a 0a  0a 20 2f 2a 0a 20 20 2a  |#endif... /*.  *|
000008d0  20 4d 6f 73 74 20 74 68  65 20 63 6f 64 65 20 69  | Most the code i|
000008e0  6e 20 68 65 72 65 20 69  73 20 70 72 65 74 74 79  |n here is pretty|
000008f0  20 6e 61 66 66 20 62 75  74 20 69 74 20 77 6f 72  | naff but it wor|
00000900  6b 73 2e 0a 20 20 2a 0a  20 20 2a 20 41 74 20 73  |ks..  *.  * At s|
00000910  6f 6d 65 20 70 6f 69 6e  74 20 74 68 69 73 20 6c  |ome point this l|
00000920  6f 74 20 6d 61 79 20 61  73 20 77 65 6c 6c 20 62  |ot may as well b|
00000930  65 20 72 65 2d 77 72 69  74 74 65 6e 20 69 6e 20  |e re-written in |
00000940  61 73 6d 2c 0a 20 20 2a  20 77 68 69 63 68 20 77  |asm,.  * which w|
00000950  69 6c 6c 20 72 65 6d 6f  76 65 20 6f 75 72 20 64  |ill remove our d|
00000960  65 70 65 6e 64 65 6e 64  63 79 20 6f 6e 20 73 74  |ependendcy on st|
00000970  75 62 73 2f 73 68 61 72  65 64 63 6c 69 62 2e 0a  |ubs/sharedclib..|
00000980  20 20 2a 0a 20 20 2a 20  41 6c 73 6f 20 74 68 65  |  *.  * Also the|
00000990  20 65 78 63 65 75 74 61  62 6c 65 20 77 69 6c 6c  | exceutable will|
000009a0  20 64 72 6f 70 20 69 6e  20 73 69 7a 65 20 63 6f  | drop in size co|
000009b0  6e 73 69 64 65 72 61 62  6c 79 0a 20 20 2a 2f 0a  |nsiderably.  */.|
000009c0  74 79 70 65 64 65 66 0a  20 20 73 74 72 75 63 74  |typedef.  struct|
000009d0  20 7b 0a 20 20 20 20 20  20 20 20 20 69 6e 74 20  | {.         int |
000009e0  20 20 61 64 64 72 5f 66  61 6d 69 6c 79 3b 0a 20  |  addr_family;. |
000009f0  20 20 20 20 20 20 20 20  69 6e 74 20 20 20 70 72  |        int   pr|
00000a00  6f 74 6f 5f 66 61 6d 69  6c 79 3b 0a 0a 20 20 20  |oto_family;..   |
00000a10  20 20 20 20 20 20 63 68  61 72 2a 20 73 70 65 63  |      char* spec|
00000a20  69 61 6c 5f 66 69 65 6c  64 3b 0a 20 20 20 20 20  |ial_field;.     |
00000a30  20 20 20 20 69 6e 74 20  28 2a 6d 61 6b 65 73 6f  |    int (*makeso|
00000a40  63 6b 65 74 29 28 63 68  61 72 2a 20 66 6e 61 6d  |cket)(char* fnam|
00000a50  65 29 3b 0a 0a 20 20 20  20 20 20 20 20 20 20 7d  |e);..          }|
00000a60  20 54 68 61 6e 64 6c 65  72 5f 73 74 72 75 63 74  | Thandler_struct|
00000a70  3b 0a 0a 0a 74 79 70 65  64 65 66 0a 20 20 73 74  |;...typedef.  st|
00000a80  72 75 63 74 20 54 53 5f  68 61 6e 64 20 7b 0a 20  |ruct TS_hand {. |
00000a90  20 20 20 20 20 20 20 20  20 54 68 61 6e 64 6c 65  |         Thandle|
00000aa0  72 5f 73 74 72 75 63 74  20 2a 64 61 74 61 3b 0a  |r_struct *data;.|
00000ab0  20 20 20 20 20 20 20 20  20 20 73 74 72 75 63 74  |          struct|
00000ac0  20 54 53 5f 68 61 6e 64  20 2a 6e 65 78 74 3b 0a  | TS_hand *next;.|
00000ad0  20 20 20 20 20 20 20 20  20 7d 20 54 68 61 6e 64  |         } Thand|
00000ae0  6c 65 72 5f 6c 69 73 74  3b 0a 0a 54 68 61 6e 64  |ler_list;..Thand|
00000af0  6c 65 72 5f 6c 69 73 74  20 2a 68 61 6e 64 6c 65  |ler_list *handle|
00000b00  72 5f 6c 69 73 74 5f 72  6f 6f 74 3b 0a 63 68 61  |r_list_root;.cha|
00000b10  72 2a 20 65 72 72 73 74  72 3b 0a 0a 54 68 61 6e  |r* errstr;..Than|
00000b20  64 6c 65 72 5f 73 74 72  75 63 74 20 49 50 68 61  |dler_struct IPha|
00000b30  6e 64 6c 65 72 2c 66 64  68 61 6e 64 6c 65 72 3b  |ndler,fdhandler;|
00000b40  0a 54 68 61 6e 64 6c 65  72 5f 6c 69 73 74 20 20  |.Thandler_list  |
00000b50  20 49 50 6f 75 74 65 72  2c 66 64 6f 75 74 65 72  | IPouter,fdouter|
00000b60  3b 0a 0a 0a 0a 69 6e 74  20 6d 61 6b 65 49 6e 65  |;....int makeIne|
00000b70  74 53 74 72 65 61 6d 28  63 68 61 72 2a 20 66 69  |tStream(char* fi|
00000b80  6c 65 6e 61 6d 65 29 3b  0a 69 6e 74 20 73 6f 63  |lename);.int soc|
00000b90  6b 32 66 64 28 63 68 61  72 2a 20 66 69 6c 65 6e  |k2fd(char* filen|
00000ba0  61 6d 65 29 3b 0a 0a 76  6f 69 64 20 69 6e 69 74  |ame);..void init|
00000bb0  68 61 6e 64 6c 65 72 6c  69 73 74 28 29 0a 20 20  |handlerlist().  |
00000bc0  7b 0a 20 20 20 20 49 50  68 61 6e 64 6c 65 72 2e  |{.    IPhandler.|
00000bd0  73 70 65 63 69 61 6c 5f  66 69 65 6c 64 3d 22 49  |special_field="I|
00000be0  50 76 34 22 3b 0a 20 20  20 20 49 50 68 61 6e 64  |Pv4";.    IPhand|
00000bf0  6c 65 72 2e 6d 61 6b 65  73 6f 63 6b 65 74 3d 6d  |ler.makesocket=m|
00000c00  61 6b 65 49 6e 65 74 53  74 72 65 61 6d 3b 0a 20  |akeInetStream;. |
00000c10  20 20 20 66 64 68 61 6e  64 6c 65 72 2e 73 70 65  |   fdhandler.spe|
00000c20  63 69 61 6c 5f 66 69 65  6c 64 3d 22 73 32 66 64  |cial_field="s2fd|
00000c30  22 3b 0a 20 20 20 20 66  64 68 61 6e 64 6c 65 72  |";.    fdhandler|
00000c40  2e 6d 61 6b 65 73 6f 63  6b 65 74 3d 73 6f 63 6b  |.makesocket=sock|
00000c50  32 66 64 3b 0a 20 20 20  20 49 50 6f 75 74 65 72  |2fd;.    IPouter|
00000c60  2e 64 61 74 61 3d 26 49  50 68 61 6e 64 6c 65 72  |.data=&IPhandler|
00000c70  3b 0a 20 20 20 20 49 50  6f 75 74 65 72 2e 6e 65  |;.    IPouter.ne|
00000c80  78 74 3d 26 66 64 6f 75  74 65 72 3b 0a 20 20 20  |xt=&fdouter;.   |
00000c90  20 66 64 6f 75 74 65 72  2e 64 61 74 61 3d 26 66  | fdouter.data=&f|
00000ca0  64 68 61 6e 64 6c 65 72  3b 0a 20 20 20 20 66 64  |dhandler;.    fd|
00000cb0  6f 75 74 65 72 2e 6e 65  78 74 3d 4e 55 4c 4c 3b  |outer.next=NULL;|
00000cc0  0a 20 20 20 20 68 61 6e  64 6c 65 72 5f 6c 69 73  |.    handler_lis|
00000cd0  74 5f 72 6f 6f 74 3d 26  49 50 6f 75 74 65 72 3b  |t_root=&IPouter;|
00000ce0  0a 20 20 7d 0a 0a 69 6e  74 20 20 6d 61 6b 65 53  |.  }..int  makeS|
00000cf0  6f 63 6b 65 74 28 63 68  61 72 2a 20 73 70 65 63  |ocket(char* spec|
00000d00  69 61 6c 66 69 65 6c 64  2c 63 68 61 72 2a 20 66  |ialfield,char* f|
00000d10  69 6c 65 6e 61 6d 65 29  0a 20 20 7b 0a 20 20 20  |ilename).  {.   |
00000d20  20 69 6e 74 20 20 20 20  20 20 20 20 20 20 20 20  | int            |
00000d30  20 61 5f 73 6f 63 6b 65  74 3b 0a 20 20 20 20 54  | a_socket;.    T|
00000d40  68 61 6e 64 6c 65 72 5f  6c 69 73 74 20 20 20 2a  |handler_list   *|
00000d50  74 72 61 76 65 72 73 65  65 3b 0a 20 20 20 20 69  |traversee;.    i|
00000d60  6e 74 20 20 20 20 20 20  20 20 20 20 20 20 20 66  |nt             f|
00000d70  6f 75 6e 64 3b 0a 0a 20  20 20 20 69 66 20 28 21  |ound;..    if (!|
00000d80  73 70 65 63 69 61 6c 66  69 65 6c 64 29 0a 20 20  |specialfield).  |
00000d90  20 20 20 20 7b 0a 20 20  20 20 20 20 20 20 2f 2a  |    {.        /*|
00000da0  44 65 66 61 75 6c 74 20  41 46 5f 49 4e 45 54 2a  |Default AF_INET*|
00000db0  2f 0a 20 20 20 20 20 20  20 20 73 70 65 63 69 61  |/.        specia|
00000dc0  6c 66 69 65 6c 64 3d 22  49 50 76 34 22 3b 0a 0a  |lfield="IPv4";..|
00000dd0  23 69 66 64 65 66 20 44  45 42 55 47 0a 74 72 61  |#ifdef DEBUG.tra|
00000de0  63 6b 65 72 5f 73 69 6d  70 6c 65 28 22 20 2d 20  |cker_simple(" - |
00000df0  73 70 65 63 69 61 6c 20  72 65 73 65 74 20 74 6f  |special reset to|
00000e00  20 5c 22 49 50 76 34 5c  22 20 28 6f 72 20 69 73  | \"IPv4\" (or is|
00000e10  20 69 74 29 5c 6e 22 29  3b 0a 23 65 6e 64 69 66  | it)\n");.#endif|
00000e20  0a 20 20 20 20 20 20 7d  3b 0a 0a 20 20 20 20 74  |.      };..    t|
00000e30  72 61 76 65 72 73 65 65  3d 68 61 6e 64 6c 65 72  |raversee=handler|
00000e40  5f 6c 69 73 74 5f 72 6f  6f 74 3b 0a 20 20 20 20  |_list_root;.    |
00000e50  66 6f 75 6e 64 3d 30 3b  0a 20 20 20 20 77 68 69  |found=0;.    whi|
00000e60  6c 65 20 28 28 74 72 61  76 65 72 73 65 65 21 3d  |le ((traversee!=|
00000e70  4e 55 4c 4c 29 20 26 26  20 21 66 6f 75 6e 64 29  |NULL) && !found)|
00000e80  20 7b 0a 20 20 20 20 20  20 66 6f 75 6e 64 3d 21  | {.      found=!|
00000e90  73 74 72 63 6d 70 28 73  70 65 63 69 61 6c 66 69  |strcmp(specialfi|
00000ea0  65 6c 64 2c 74 72 61 76  65 72 73 65 65 2d 3e 64  |eld,traversee->d|
00000eb0  61 74 61 2d 3e 73 70 65  63 69 61 6c 5f 66 69 65  |ata->special_fie|
00000ec0  6c 64 29 3b 0a 20 20 20  20 20 20 20 69 66 20 28  |ld);.       if (|
00000ed0  74 72 61 76 65 72 73 65  65 21 3d 4e 55 4c 4c 20  |traversee!=NULL |
00000ee0  26 26 20 21 66 6f 75 6e  64 29 20 7b 0a 20 20 20  |&& !found) {.   |
00000ef0  20 20 20 20 20 20 74 72  61 76 65 72 73 65 65 3d  |      traversee=|
00000f00  74 72 61 76 65 72 73 65  65 2d 3e 6e 65 78 74 3b  |traversee->next;|
00000f10  0a 20 20 20 20 20 20 20  7d 0a 20 20 20 20 7d 0a  |.       }.    }.|
00000f20  0a 20 20 20 20 69 66 20  28 21 66 6f 75 6e 64 29  |.    if (!found)|
00000f30  0a 20 20 20 20 20 20 7b  0a 20 20 20 20 20 20 20  |.      {.       |
00000f40  20 20 2f 2a 46 69 6c 65  20 6e 6f 74 20 66 6f 75  |  /*File not fou|
00000f50  6e 64 2e 2e 20 20 20 20  20 20 2a 2f 0a 20 20 20  |nd..      */.   |
00000f60  20 20 20 20 20 61 5f 73  6f 63 6b 65 74 3d 2d 31  |     a_socket=-1|
00000f70  3b 0a 20 20 20 20 20 20  7d 0a 20 20 20 20 20 20  |;.      }.      |
00000f80  65 6c 73 65 0a 20 20 20  20 20 20 7b 0a 23 69 66  |else.      {.#if|
00000f90  64 65 66 20 44 45 42 55  47 0a 74 72 61 63 6b 65  |def DEBUG.tracke|
00000fa0  72 5f 73 69 6d 70 6c 65  28 22 41 62 6f 75 74 20  |r_simple("About |
00000fb0  74 68 65 20 63 61 6c 6c  20 6d 61 6b 65 73 6f 63  |the call makesoc|
00000fc0  6b 65 74 20 66 6f 72 20  61 66 2e 2e 5c 6e 22 29  |ket for af..\n")|
00000fd0  3b 0a 23 65 6e 64 69 66  0a 20 20 20 20 20 20 20  |;.#endif.       |
00000fe0  20 61 5f 73 6f 63 6b 65  74 3d 74 72 61 76 65 72  | a_socket=traver|
00000ff0  73 65 65 2d 3e 64 61 74  61 2d 3e 6d 61 6b 65 73  |see->data->makes|
00001000  6f 63 6b 65 74 28 66 69  6c 65 6e 61 6d 65 29 3b  |ocket(filename);|
00001010  0a 20 20 20 20 20 20 7d  0a 0a 20 20 20 20 72 65  |.      }..    re|
00001020  74 75 72 6e 20 61 5f 73  6f 63 6b 65 74 3b 0a 20  |turn a_socket;. |
00001030  20 7d 0a 0a 0a 69 6e 74  20 6d 61 6b 65 49 6e 65  | }...int makeIne|
00001040  74 53 74 72 65 61 6d 28  63 68 61 72 2a 20 66 69  |tStream(char* fi|
00001050  6c 65 6e 61 6d 65 29 0a  20 7b 0a 20 20 20 2f 2a  |lename). {.   /*|
00001060  20 54 68 65 20 61 69 6d  20 68 65 72 65 20 69 73  | The aim here is|
00001070  20 74 77 6f 20 65 78 74  72 61 63 74 20 70 72 6f  | two extract pro|
00001080  74 6f 63 6f 6c 20 6f 76  65 72 20 77 68 69 63 68  |tocol over which|
00001090  20 77 68 65 72 65 20 6f  70 65 6e 69 6e 67 20 74  | where opening t|
000010a0  68 65 0a 20 20 20 20 2a  20 63 6f 6e 6e 65 63 74  |he.    * connect|
000010b0  69 6f 6e 2e 20 28 61 73  73 75 6d 69 6e 67 20 49  |ion. (assuming I|
000010c0  43 4d 50 2f 54 43 50 2f  55 44 50 2e 29 0a 20 20  |CMP/TCP/UDP.).  |
000010d0  20 20 2a 20 57 65 20 61  6c 73 6f 20 6e 65 65 64  |  * We also need|
000010e0  20 74 6f 20 65 78 74 72  61 63 74 20 74 68 65 20  | to extract the |
000010f0  68 6f 73 74 3a 70 6f 72  74 20 64 65 73 69 67 6e  |host:port design|
00001100  61 74 69 6f 6e 20 6f 66  20 62 6f 74 68 20 65 6e  |ation of both en|
00001110  64 73 2e 0a 20 20 20 20  2a 0a 20 20 20 20 2a 20  |ds..    *.    * |
00001120  57 65 20 64 6f 20 74 68  69 73 20 62 79 20 70 72  |We do this by pr|
00001130  6f 63 65 73 73 69 6e 67  20 65 61 63 68 20 64 69  |ocessing each di|
00001140  72 65 63 74 6f 72 79 20  69 6e 20 74 75 72 6e 2e  |rectory in turn.|
00001150  0a 20 20 20 20 2a 20 65  67 2e 20 73 6f 63 6b 65  |.    * eg. socke|
00001160  74 23 49 50 76 34 3a 3a  54 63 70 2e 24 2e 77 77  |t#IPv4::Tcp.$.ww|
00001170  77 2f 64 65 6d 6f 6e 2f  63 6f 2f 75 6b 5c 38 30  |w/demon/co/uk\80|
00001180  20 20 20 20 20 20 20 20  2d 54 61 6c 6b 20 74 6f  |        -Talk to|
00001190  20 61 20 48 74 74 70 64  20 2d 20 66 72 6f 6d 20  | a Httpd - from |
000011a0  61 6e 79 20 70 6f 72 74  2e 0a 20 20 20 20 2a 20  |any port..    * |
000011b0  20 20 20 73 6f 63 6b 65  74 23 49 50 76 34 3a 3a  |   socket#IPv4::|
000011c0  54 63 70 2e 24 2e 31 39  32 2f 31 36 38 2f 30 2f  |Tcp.$.192/168/0/|
000011d0  33 5c 35 31 35 2e 61 75  74 6f 5c 37 36 38 20 20  |3\515.auto\768  |
000011e0  2d 54 61 6c 6b 20 74 6f  20 6d 79 20 6c 70 64 20  |-Talk to my lpd |
000011f0  73 65 72 76 65 72 2e 2e  20 66 72 6f 6d 20 61 20  |server.. from a |
00001200  72 65 73 76 65 72 65 64  20 70 6f 72 74 0a 20 20  |resvered port.  |
00001210  20 20 2a 2f 0a 0a 20 20  20 63 68 61 72 20 20 20  |  */..   char   |
00001220  2a 73 65 63 74 69 6f 6e  2c 2a 64 69 76 69 73 6f  |*section,*diviso|
00001230  72 2c 2a 73 65 72 76 2c  2a 74 6d 70 70 74 72 3b  |r,*serv,*tmpptr;|
00001240  0a 20 20 20 63 68 61 72  20 20 20 70 72 6f 74 6f  |.   char   proto|
00001250  5b 39 39 5d 2c 6c 63 6c  5f 68 6f 73 74 5b 32 35  |[99],lcl_host[25|
00001260  35 5d 2c 6c 63 6c 5f 73  65 72 76 5b 32 35 35 5d  |5],lcl_serv[255]|
00001270  2c 72 65 6d 5f 68 6f 73  74 5b 32 35 35 5d 2c 72  |,rem_host[255],r|
00001280  65 6d 5f 73 65 72 76 5b  32 35 35 5d 3b 0a 20 20  |em_serv[255];.  |
00001290  20 73 74 72 75 63 74 20  68 6f 73 74 65 6e 74 20  | struct hostent |
000012a0  2a 68 70 3b 0a 20 20 20  73 74 72 75 63 74 20 73  |*hp;.   struct s|
000012b0  65 72 76 65 6e 74 20 2a  73 70 3b 0a 20 20 20 73  |ervent *sp;.   s|
000012c0  74 72 75 63 74 20 73 6f  63 6b 61 64 64 72 5f 69  |truct sockaddr_i|
000012d0  6e 20 73 69 6e 2c 73 6f  75 74 3b 0a 20 20 20 69  |n sin,sout;.   i|
000012e0  6e 74 20 20 20 20 73 3b  0a 20 20 20 63 68 61 72  |nt    s;.   char|
000012f0  20 20 20 6f 6c 64 64 69  76 3b 0a 20 20 20 69 6e  |   olddiv;.   in|
00001300  74 20 20 20 20 6f 6e 65  20 3d 31 3b 0a 0a 20 20  |t    one =1;..  |
00001310  20 73 65 63 74 69 6f 6e  3d 73 74 72 73 74 72 28  | section=strstr(|
00001320  66 69 6c 65 6e 61 6d 65  2c 22 3a 22 29 3b 20 2f  |filename,":"); /|
00001330  2a 53 68 6f 75 6c 64 20  62 65 20 31 73 74 20 63  |*Should be 1st c|
00001340  68 61 72 20 2a 2f 0a 20  20 20 64 69 76 69 73 6f  |har */.   diviso|
00001350  72 3d 73 74 72 73 74 72  28 66 69 6c 65 6e 61 6d  |r=strstr(filenam|
00001360  65 2c 22 2e 24 2e 22 29  3b 0a 20 20 20 69 66 20  |e,".$.");.   if |
00001370  28 21 64 69 76 69 73 6f  72 29 0a 20 20 20 20 20  |(!divisor).     |
00001380  72 65 74 75 72 6e 20 2d  31 3b 0a 0a 20 20 20 2a  |return -1;..   *|
00001390  64 69 76 69 73 6f 72 3d  27 5c 30 27 3b 0a 20 20  |divisor='\0';.  |
000013a0  20 73 74 72 63 70 79 28  70 72 6f 74 6f 2c 73 65  | strcpy(proto,se|
000013b0  63 74 69 6f 6e 2b 31 29  3b 0a 23 69 66 64 65 66  |ction+1);.#ifdef|
000013c0  20 44 45 42 55 47 0a 20  20 20 74 72 61 63 6b 65  | DEBUG.   tracke|
000013d0  72 5f 70 72 69 6e 74 66  28 22 50 72 6f 74 6f 63  |r_printf("Protoc|
000013e0  6f 6c 20 3d 20 25 73 5c  6e 22 2c 70 72 6f 74 6f  |ol = %s\n",proto|
000013f0  29 3b 0a 23 65 6e 64 69  66 0a 20 20 20 2a 64 69  |);.#endif.   *di|
00001400  76 69 73 6f 72 3d 27 2e  27 3b 0a 20 20 20 73 65  |visor='.';.   se|
00001410  63 74 69 6f 6e 3d 64 69  76 69 73 6f 72 2b 33 3b  |ction=divisor+3;|
00001420  0a 0a 20 20 20 73 65 72  76 3d 73 74 72 73 74 72  |..   serv=strstr|
00001430  28 73 65 63 74 69 6f 6e  2c 22 5c 5c 22 29 3b 0a  |(section,"\\");.|
00001440  20 20 20 64 69 76 69 73  6f 72 3d 73 74 72 73 74  |   divisor=strst|
00001450  72 28 73 65 63 74 69 6f  6e 2c 22 2e 22 29 3b 0a  |r(section,".");.|
00001460  0a 20 20 20 69 66 20 28  28 64 69 76 69 73 6f 72  |.   if ((divisor|
00001470  29 20 26 26 20 28 64 69  76 69 73 6f 72 3c 73 65  |) && (divisor<se|
00001480  72 76 29 20 7c 7c 20 21  73 65 72 76 29 0a 20 20  |rv) || !serv).  |
00001490  20 20 20 7b 0a 20 20 20  20 20 20 2f 2a 0a 20 20  |   {.      /*.  |
000014a0  20 20 20 20 20 2a 20 57  65 20 6d 75 73 74 20 68  |     * We must h|
000014b0  61 76 65 20 62 6f 74 68  20 61 20 70 6f 72 74 20  |ave both a port |
000014c0  61 6e 64 20 61 20 68 6f  73 74 20 61 74 20 74 68  |and a host at th|
000014d0  65 0a 20 20 20 20 20 20  20 2a 20 72 65 6d 6f 74  |e.       * remot|
000014e0  65 20 65 6e 64 2e 0a 20  20 20 20 20 20 20 2a 2f  |e end..       */|
000014f0  0a 0a 20 20 20 20 20 20  72 65 74 75 72 6e 20 2d  |..      return -|
00001500  31 3b 0a 20 20 20 20 20  7d 0a 20 20 20 20 20 65  |1;.     }.     e|
00001510  6c 73 65 0a 20 20 20 20  20 7b 0a 20 20 20 20 20  |lse.     {.     |
00001520  20 2f 2a 20 27 5c 27 20  69 6e 20 74 68 65 20 72  | /* '\' in the r|
00001530  65 6d 6f 74 65 20 70 61  72 74 2a 2f 0a 0a 20 20  |emote part*/..  |
00001540  20 20 20 20 20 69 66 20  28 64 69 76 69 73 6f 72  |     if (divisor|
00001550  29 20 7b 0a 20 20 20 20  20 20 20 20 20 6f 6c 64  |) {.         old|
00001560  64 69 76 3d 20 2a 64 69  76 69 73 6f 72 3b 0a 20  |div= *divisor;. |
00001570  20 20 20 20 20 20 20 20  2a 64 69 76 69 73 6f 72  |        *divisor|
00001580  3d 27 5c 30 27 3b 0a 20  20 20 20 20 20 20 7d 0a  |='\0';.       }.|
00001590  20 20 20 20 20 20 20 73  74 72 63 70 79 28 72 65  |       strcpy(re|
000015a0  6d 5f 73 65 72 76 2c 73  65 72 76 2b 31 29 3b 0a  |m_serv,serv+1);.|
000015b0  20 20 20 20 20 20 20 69  66 20 28 64 69 76 69 73  |       if (divis|
000015c0  6f 72 29 0a 20 20 20 20  20 20 20 20 20 20 2a 64  |or).          *d|
000015d0  69 76 69 73 6f 72 3d 6f  6c 64 64 69 76 3b 0a 23  |ivisor=olddiv;.#|
000015e0  69 66 64 65 66 20 44 45  42 55 47 0a 20 20 20 74  |ifdef DEBUG.   t|
000015f0  72 61 63 6b 65 72 5f 70  72 69 6e 74 66 28 22 52  |racker_printf("R|
00001600  65 6d 6f 74 65 20 70 6f  72 74 20 6e 61 6d 65 20  |emote port name |
00001610  3d 20 25 73 5c 6e 22 2c  72 65 6d 5f 73 65 72 76  |= %s\n",rem_serv|
00001620  29 3b 0a 23 65 6e 64 69  66 0a 20 20 20 20 20 20  |);.#endif.      |
00001630  20 6f 6c 64 64 69 76 3d  2a 73 65 72 76 3b 0a 20  | olddiv=*serv;. |
00001640  20 20 20 20 20 20 2a 73  65 72 76 3d 27 5c 30 27  |      *serv='\0'|
00001650  3b 0a 20 20 20 20 20 20  20 73 74 72 63 70 79 28  |;.       strcpy(|
00001660  72 65 6d 5f 68 6f 73 74  2c 73 65 63 74 69 6f 6e  |rem_host,section|
00001670  29 3b 0a 20 20 20 20 20  20 20 2a 73 65 72 76 3d  |);.       *serv=|
00001680  6f 6c 64 64 69 76 3b 0a  23 69 66 64 65 66 20 44  |olddiv;.#ifdef D|
00001690  45 42 55 47 0a 20 20 20  74 72 61 63 6b 65 72 5f  |EBUG.   tracker_|
000016a0  70 72 69 6e 74 66 28 22  52 65 6d 6f 74 65 20 68  |printf("Remote h|
000016b0  6f 73 74 20 70 61 72 74  20 3d 20 25 73 5c 6e 22  |ost part = %s\n"|
000016c0  2c 72 65 6d 5f 68 6f 73  74 29 3b 0a 23 65 6e 64  |,rem_host);.#end|
000016d0  69 66 0a 20 20 20 20 20  20 2f 2a 20 44 6f 20 27  |if.      /* Do '|
000016e0  2e 27 20 61 6e 64 20 27  2f 27 20 72 65 70 6c 61  |.' and '/' repla|
000016f0  63 65 6d 65 6e 74 2e 20  2a 2f 0a 0a 20 20 20 20  |cement. */..    |
00001700  20 20 20 74 6d 70 70 74  72 3d 72 65 6d 5f 68 6f  |   tmpptr=rem_ho|
00001710  73 74 3b 0a 20 20 20 20  20 20 20 77 68 69 6c 65  |st;.       while|
00001720  20 28 2a 74 6d 70 70 74  72 21 3d 27 5c 30 27 29  | (*tmpptr!='\0')|
00001730  20 7b 0a 20 20 20 20 20  20 20 20 20 69 66 20 28  | {.         if (|
00001740  2a 74 6d 70 70 74 72 3d  3d 27 2f 27 29 0a 20 20  |*tmpptr=='/').  |
00001750  20 20 20 20 20 20 20 20  20 7b 0a 20 20 20 20 20  |         {.     |
00001760  20 20 20 20 20 20 20 20  2a 74 6d 70 70 74 72 3d  |        *tmpptr=|
00001770  27 2e 27 3b 0a 20 20 20  20 20 20 20 20 20 20 20  |'.';.           |
00001780  7d 0a 20 20 20 20 20 20  20 20 20 74 6d 70 70 74  |}.         tmppt|
00001790  72 2b 2b 3b 0a 20 20 20  20 20 20 20 7d 0a 23 69  |r++;.       }.#i|
000017a0  66 64 65 66 20 44 45 42  55 47 0a 20 20 20 74 72  |fdef DEBUG.   tr|
000017b0  61 63 6b 65 72 5f 70 72  69 6e 74 66 28 22 52 65  |acker_printf("Re|
000017c0  6d 6f 74 65 20 68 6f 73  74 20 3d 20 25 73 5c 6e  |mote host = %s\n|
000017d0  22 2c 72 65 6d 5f 68 6f  73 74 29 3b 0a 23 65 6e  |",rem_host);.#en|
000017e0  64 69 66 0a 20 20 20 20  20 20 20 68 70 3d 67 65  |dif.       hp=ge|
000017f0  74 68 6f 73 74 62 79 6e  61 6d 65 28 72 65 6d 5f  |thostbyname(rem_|
00001800  68 6f 73 74 29 3b 0a 20  20 20 20 20 20 20 69 66  |host);.       if|
00001810  20 28 68 70 20 3d 3d 20  4e 55 4c 4c 29 20 7b 0a  | (hp == NULL) {.|
00001820  20 20 20 20 20 20 20 20  20 65 72 72 73 74 72 3d  |         errstr=|
00001830  22 43 61 6e 27 74 20 66  69 6e 64 20 72 65 6d 6f  |"Can't find remo|
00001840  74 65 20 69 6e 74 65 72  66 61 63 65 5c 6e 22 3b  |te interface\n";|
00001850  0a 20 20 20 20 20 20 20  20 20 72 65 74 75 72 6e  |.         return|
00001860  20 2d 31 3b 0a 20 20 20  20 20 20 20 7d 0a 0a 20  | -1;.       }.. |
00001870  20 20 20 20 20 20 62 7a  65 72 6f 28 28 63 68 61  |      bzero((cha|
00001880  72 20 2a 29 26 73 69 6e  2c 20 73 69 7a 65 6f 66  |r *)&sin, sizeof|
00001890  28 73 69 6e 29 29 3b 0a  20 20 20 20 20 20 20 62  |(sin));.       b|
000018a0  63 6f 70 79 28 68 70 2d  3e 68 5f 61 64 64 72 2c  |copy(hp->h_addr,|
000018b0  20 28 63 61 64 64 72 5f  74 29 26 73 69 6e 2e 73  | (caddr_t)&sin.s|
000018c0  69 6e 5f 61 64 64 72 2c  20 68 70 2d 3e 68 5f 6c  |in_addr, hp->h_l|
000018d0  65 6e 67 74 68 29 3b 0a  20 20 20 20 20 20 20 73  |ength);.       s|
000018e0  69 6e 2e 73 69 6e 5f 66  61 6d 69 6c 79 3d 20 68  |in.sin_family= h|
000018f0  70 2d 3e 68 5f 61 64 64  72 74 79 70 65 3b 0a 20  |p->h_addrtype;. |
00001900  20 20 20 20 20 20 73 69  6e 2e 73 69 6e 5f 70 6f  |      sin.sin_po|
00001910  72 74 3d 68 74 6f 6e 73  28 61 74 6f 69 28 72 65  |rt=htons(atoi(re|
00001920  6d 5f 73 65 72 76 29 29  3b 0a 0a 20 20 20 20 20  |m_serv));..     |
00001930  20 20 2f 2a 20 54 68 65  72 65 20 69 73 20 61 6e  |  /* There is an|
00001940  20 69 6d 70 6c 69 63 69  74 20 61 73 73 75 6d 61  | implicit assuma|
00001950  74 69 6f 6e 20 68 65 72  65 20 74 68 61 74 20 6f  |tion here that o|
00001960  75 72 20 68 6f 73 74 73  20 2a 2f 0a 20 20 20 20  |ur hosts */.    |
00001970  20 20 20 2f 2a 20 61 6e  64 20 6e 65 74 77 6f 72  |   /* and networ|
00001980  6b 20 72 65 70 72 65 73  65 6e 74 61 74 69 6f 6e  |k representation|
00001990  73 20 6f 66 20 30 20 61  72 65 20 74 68 65 20 73  |s of 0 are the s|
000019a0  61 6d 65 20 20 20 20 20  20 20 2a 2f 0a 20 20 20  |ame       */.   |
000019b0  20 20 20 20 2f 2a 20 54  68 69 73 20 77 69 6c 6c  |    /* This will|
000019c0  20 62 65 20 74 72 75 65  20 66 6f 72 20 61 6c 6c  | be true for all|
000019d0  20 62 69 67 20 26 20 6c  69 74 74 6c 65 20 65 6e  | big & little en|
000019e0  64 69 61 6e 20 20 20 20  20 20 20 2a 2f 0a 20 20  |dian       */.  |
000019f0  20 20 20 20 20 2f 2a 20  6d 61 63 68 69 6e 65 73  |     /* machines|
00001a00  2c 20 77 68 69 63 68 20  75 73 65 20 32 27 73 20  |, which use 2's |
00001a10  63 6f 6d 70 6c 65 6d 65  6e 74 20 20 20 20 20 20  |complement      |
00001a20  20 20 20 20 20 20 20 20  20 20 20 20 2a 2f 0a 20  |            */. |
00001a30  20 20 20 20 20 20 69 66  20 28 73 69 6e 2e 73 69  |      if (sin.si|
00001a40  6e 5f 70 6f 72 74 3d 3d  30 29 20 7b 0a 20 20 20  |n_port==0) {.   |
00001a50  20 20 20 20 20 20 73 70  3d 67 65 74 73 65 72 76  |      sp=getserv|
00001a60  62 79 6e 61 6d 65 28 72  65 6d 5f 73 65 72 76 2c  |byname(rem_serv,|
00001a70  70 72 6f 74 6f 29 3b 0a  20 20 20 20 20 20 20 20  |proto);.        |
00001a80  20 69 66 20 28 73 70 20  3d 3d 20 4e 55 4c 4c 29  | if (sp == NULL)|
00001a90  20 7b 0a 20 20 20 20 20  20 20 20 20 20 20 65 72  | {.           er|
00001aa0  72 73 74 72 3d 22 43 61  6e 27 74 20 72 65 73 6f  |rstr="Can't reso|
00001ab0  6c 76 65 20 72 65 6d 6f  74 65 20 73 65 72 76 69  |lve remote servi|
00001ac0  63 65 5c 6e 22 3b 0a 20  20 20 20 20 20 20 20 20  |ce\n";.         |
00001ad0  20 20 72 65 74 75 72 6e  20 2d 31 3b 0a 20 20 20  |  return -1;.   |
00001ae0  20 20 20 20 20 20 20 7d  0a 20 20 20 20 20 20 20  |       }.       |
00001af0  20 20 73 69 6e 2e 73 69  6e 5f 70 6f 72 74 20 20  |  sin.sin_port  |
00001b00  3d 20 73 70 2d 3e 73 5f  70 6f 72 74 3b 0a 20 20  |= sp->s_port;.  |
00001b10  20 20 20 20 20 20 7d 0a  23 69 66 64 65 66 20 44  |      }.#ifdef D|
00001b20  45 42 55 47 0a 74 72 61  63 6b 65 72 5f 70 72 69  |EBUG.tracker_pri|
00001b30  6e 74 66 28 22 52 65 6d  6f 74 65 20 70 6f 72 74  |ntf("Remote port|
00001b40  20 6e 6f 20 3d 20 25 64  5c 6e 22 2c 6e 74 6f 68  | no = %d\n",ntoh|
00001b50  73 28 73 69 6e 2e 73 69  6e 5f 70 6f 72 74 29 29  |s(sin.sin_port))|
00001b60  3b 0a 23 65 6e 64 69 66  0a 20 20 20 20 20 20 20  |;.#endif.       |
00001b70  7d 0a 0a 20 20 20 20 20  69 66 20 28 2a 64 69 76  |}..     if (*div|
00001b80  69 73 6f 72 3d 3d 27 5c  30 27 29 0a 20 20 20 20  |isor=='\0').    |
00001b90  20 20 7b 0a 23 69 66 64  65 66 20 44 45 42 55 47  |  {.#ifdef DEBUG|
00001ba0  0a 74 72 61 63 6b 65 72  5f 73 69 6d 70 6c 65 28  |.tracker_simple(|
00001bb0  22 43 72 65 61 74 69 6e  67 20 73 6f 63 6b 65 74  |"Creating socket|
00001bc0  2e 2e 2e 20 22 29 3b 0a  23 65 6e 64 69 66 0a 20  |... ");.#endif. |
00001bd0  20 20 20 20 20 20 20 73  3d 73 6f 63 6b 65 74 28  |       s=socket(|
00001be0  41 46 5f 49 4e 45 54 2c  53 4f 43 4b 5f 53 54 52  |AF_INET,SOCK_STR|
00001bf0  45 41 4d 2c 30 29 3b 0a  23 69 66 64 65 66 20 44  |EAM,0);.#ifdef D|
00001c00  45 42 55 47 0a 74 72 61  63 6b 65 72 5f 73 69 6d  |EBUG.tracker_sim|
00001c10  70 6c 65 28 22 64 6f 6e  65 5c 6e 22 29 3b 0a 23  |ple("done\n");.#|
00001c20  65 6e 64 69 66 0a 20 20  20 20 20 20 20 20 69 66  |endif.        if|
00001c30  20 28 73 3d 3d 2d 31 29  20 72 65 74 75 72 6e 20  | (s==-1) return |
00001c40  73 3b 0a 20 20 20 20 20  20 7d 0a 20 20 20 20 20  |s;.      }.     |
00001c50  20 65 6c 73 65 0a 20 20  20 20 20 20 7b 0a 20 20  | else.      {.  |
00001c60  20 20 20 20 20 73 65 63  74 69 6f 6e 3d 64 69 76  |     section=div|
00001c70  69 73 6f 72 2b 31 3b 0a  20 20 20 20 20 20 20 73  |isor+1;.       s|
00001c80  65 72 76 3d 73 74 72 73  74 72 28 73 65 63 74 69  |erv=strstr(secti|
00001c90  6f 6e 2c 22 5c 5c 22 29  3b 0a 0a 20 20 20 20 20  |on,"\\");..     |
00001ca0  20 20 69 66 20 28 21 73  65 72 76 29 0a 20 20 20  |  if (!serv).   |
00001cb0  20 20 20 20 20 20 7b 0a  20 20 20 20 20 20 20 20  |      {.        |
00001cc0  20 2f 2a 0a 20 20 20 20  20 20 20 20 20 20 2a 20  | /*.          * |
00001cd0  4e 6f 20 27 5c 27 20 69  6e 20 6c 6f 63 61 6c 20  |No '\' in local |
00001ce0  70 61 72 74 2e 2e 2e 2e  0a 20 20 20 20 20 20 20  |part.....       |
00001cf0  20 20 20 2a 20 43 75 72  72 65 6e 74 6c 79 20 77  |   * Currently w|
00001d00  65 20 69 67 6e 6f 72 65  20 61 6c 6c 20 74 68 65  |e ignore all the|
00001d10  6e 21 0a 20 20 20 20 20  20 20 20 20 20 2a 2f 0a  |n!.          */.|
00001d20  0a 20 20 20 20 20 20 20  20 20 73 3d 73 6f 63 6b  |.         s=sock|
00001d30  65 74 28 41 46 5f 49 4e  45 54 2c 53 4f 43 4b 5f  |et(AF_INET,SOCK_|
00001d40  53 54 52 45 41 4d 2c 30  29 3b 0a 20 20 20 20 20  |STREAM,0);.     |
00001d50  20 20 20 20 7d 0a 0a 20  20 20 20 20 20 20 20 20  |    }..         |
00001d60  65 6c 73 65 0a 20 20 20  20 20 20 20 20 20 7b 0a  |else.         {.|
00001d70  20 20 20 20 20 20 20 20  20 2f 2a 20 27 5c 27 20  |         /* '\' |
00001d80  69 6e 20 74 68 65 20 6c  6f 63 61 6c 20 70 61 72  |in the local par|
00001d90  74 20 2a 2f 0a 23 69 66  64 65 66 20 44 45 42 55  |t */.#ifdef DEBU|
00001da0  47 0a 74 72 61 63 6b 65  72 5f 70 72 69 6e 74 66  |G.tracker_printf|
00001db0  28 22 6c 6f 63 61 6c 20  70 6f 72 74 20 73 70 65  |("local port spe|
00001dc0  63 69 66 69 65 64 20 2d  20 25 73 5c 6e 22 2c 73  |cified - %s\n",s|
00001dd0  65 63 74 69 6f 6e 29 3b  0a 23 65 6e 64 69 66 0a  |ection);.#endif.|
00001de0  0a 20 20 20 20 20 20 20  20 20 20 2a 64 69 76 69  |.          *divi|
00001df0  73 6f 72 3d 27 5c 30 27  3b 0a 20 20 20 20 20 20  |sor='\0';.      |
00001e00  20 20 20 20 73 74 72 63  70 79 28 6c 63 6c 5f 73  |    strcpy(lcl_s|
00001e10  65 72 76 2c 73 65 72 76  2b 31 29 3b 0a 0a 23 69  |erv,serv+1);..#i|
00001e20  66 64 65 66 20 44 45 42  55 47 0a 20 20 20 74 72  |fdef DEBUG.   tr|
00001e30  61 63 6b 65 72 5f 70 72  69 6e 74 66 28 22 4c 6f  |acker_printf("Lo|
00001e40  63 61 6c 20 70 6f 72 74  20 6e 61 6d 65 20 3d 20  |cal port name = |
00001e50  25 73 5c 6e 22 2c 6c 63  6c 5f 73 65 72 76 29 3b  |%s\n",lcl_serv);|
00001e60  0a 23 65 6e 64 69 66 0a  20 20 20 20 20 20 20 20  |.#endif.        |
00001e70  20 20 2a 73 65 72 76 3d  27 5c 30 27 3b 0a 20 20  |  *serv='\0';.  |
00001e80  20 20 20 20 20 20 20 20  73 74 72 63 70 79 28 6c  |        strcpy(l|
00001e90  63 6c 5f 68 6f 73 74 2c  73 65 63 74 69 6f 6e 29  |cl_host,section)|
00001ea0  3b 0a 0a 23 69 66 64 65  66 20 44 45 42 55 47 0a  |;..#ifdef DEBUG.|
00001eb0  20 20 20 74 72 61 63 6b  65 72 5f 70 72 69 6e 74  |   tracker_print|
00001ec0  66 28 22 4c 6f 63 61 6c  20 48 6f 73 74 20 70 61  |f("Local Host pa|
00001ed0  72 74 20 3d 20 25 73 5c  6e 22 2c 6c 63 6c 5f 68  |rt = %s\n",lcl_h|
00001ee0  6f 73 74 29 3b 0a 23 65  6e 64 69 66 0a 20 20 20  |ost);.#endif.   |
00001ef0  20 20 20 20 20 20 20 2f  2a 44 6f 20 27 2e 27 20  |       /*Do '.' |
00001f00  61 6e 64 20 27 2f 27 20  72 65 70 6c 61 63 65 6d  |and '/' replacem|
00001f10  65 6e 74 2e 2a 2f 0a 20  20 20 20 20 20 20 20 20  |ent.*/.         |
00001f20  20 74 6d 70 70 74 72 3d  6c 63 6c 5f 68 6f 73 74  | tmpptr=lcl_host|
00001f30  3b 0a 20 20 20 20 20 20  20 20 20 20 77 68 69 6c  |;.          whil|
00001f40  65 20 28 2a 74 6d 70 70  74 72 3d 3d 27 5c 30 27  |e (*tmpptr=='\0'|
00001f50  29 20 7b 0a 20 20 20 20  20 20 20 20 20 20 20 20  |) {.            |
00001f60  69 66 20 28 2a 74 6d 70  70 74 72 3d 3d 27 2f 27  |if (*tmpptr=='/'|
00001f70  29 0a 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |).              |
00001f80  7b 0a 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |{.              |
00001f90  20 20 2a 74 6d 70 70 74  72 3d 27 2e 27 3b 0a 20  |  *tmpptr='.';. |
00001fa0  20 20 20 20 20 20 20 20  20 20 20 20 20 7d 0a 20  |             }. |
00001fb0  20 20 20 20 20 20 20 20  20 7d 0a 0a 23 69 66 64  |         }..#ifd|
00001fc0  65 66 20 44 45 42 55 47  0a 20 20 20 74 72 61 63  |ef DEBUG.   trac|
00001fd0  6b 65 72 5f 70 72 69 6e  74 66 28 22 4c 6f 63 61  |ker_printf("Loca|
00001fe0  6c 20 68 6f 73 74 20 3d  20 25 73 5c 6e 22 2c 6c  |l host = %s\n",l|
00001ff0  63 6c 5f 68 6f 73 74 29  3b 0a 23 65 6e 64 69 66  |cl_host);.#endif|
00002000  0a 20 20 20 20 20 20 20  20 20 20 69 66 20 28 21  |.          if (!|
00002010  73 74 72 63 6d 70 28 6c  63 6c 5f 68 6f 73 74 2c  |strcmp(lcl_host,|
00002020  22 61 75 74 6f 22 29 29  20 7b 0a 20 20 20 20 20  |"auto")) {.     |
00002030  20 20 20 20 20 20 20 67  65 74 68 6f 73 74 6e 61  |       gethostna|
00002040  6d 65 28 6c 63 6c 5f 68  6f 73 74 2c 73 69 7a 65  |me(lcl_host,size|
00002050  6f 66 28 6c 63 6c 5f 68  6f 73 74 29 29 3b 0a 20  |of(lcl_host));. |
00002060  20 20 20 20 20 20 20 20  20 20 20 6c 63 6c 5f 68  |           lcl_h|
00002070  6f 73 74 5b 73 69 7a 65  6f 66 28 6c 63 6c 5f 68  |ost[sizeof(lcl_h|
00002080  6f 73 74 29 2d 31 5d 3d  27 5c 30 27 3b 0a 20 20  |ost)-1]='\0';.  |
00002090  20 20 20 20 20 20 20 20  7d 0a 0a 20 20 20 20 20  |        }..     |
000020a0  20 20 20 20 20 68 70 3d  67 65 74 68 6f 73 74 62  |     hp=gethostb|
000020b0  79 6e 61 6d 65 28 6c 63  6c 5f 68 6f 73 74 29 3b  |yname(lcl_host);|
000020c0  0a 20 20 20 20 20 20 20  20 20 20 69 66 20 28 68  |.          if (h|
000020d0  70 20 3d 3d 20 4e 55 4c  4c 29 20 7b 0a 20 20 20  |p == NULL) {.   |
000020e0  20 20 20 20 20 20 20 20  20 65 72 72 73 74 72 3d  |         errstr=|
000020f0  22 43 61 6e 27 74 20 66  69 6e 64 20 6c 6f 63 61  |"Can't find loca|
00002100  6c 20 69 6e 74 65 72 66  61 63 65 5c 6e 22 3b 0a  |l interface\n";.|
00002110  20 20 20 20 20 20 20 20  20 20 20 20 72 65 74 75  |            retu|
00002120  72 6e 20 2d 31 3b 0a 20  20 20 20 20 20 20 20 20  |rn -1;.         |
00002130  20 7d 0a 0a 20 20 20 20  20 20 20 20 20 20 73 3d  | }..          s=|
00002140  73 6f 63 6b 65 74 28 41  46 5f 49 4e 45 54 2c 53  |socket(AF_INET,S|
00002150  4f 43 4b 5f 53 54 52 45  41 4d 2c 30 29 3b 0a 20  |OCK_STREAM,0);. |
00002160  20 20 20 20 20 20 20 20  20 69 66 20 28 73 3d 3d  |         if (s==|
00002170  2d 31 29 20 72 65 74 75  72 6e 20 73 3b 0a 0a 20  |-1) return s;.. |
00002180  20 20 20 20 20 20 20 20  20 62 7a 65 72 6f 28 28  |         bzero((|
00002190  63 68 61 72 20 2a 29 26  73 6f 75 74 2c 20 73 69  |char *)&sout, si|
000021a0  7a 65 6f 66 28 73 6f 75  74 29 29 3b 0a 20 20 20  |zeof(sout));.   |
000021b0  20 20 20 20 20 20 20 62  63 6f 70 79 28 68 70 2d  |       bcopy(hp-|
000021c0  3e 68 5f 61 64 64 72 2c  20 28 63 61 64 64 72 5f  |>h_addr, (caddr_|
000021d0  74 29 26 73 6f 75 74 2e  73 69 6e 5f 61 64 64 72  |t)&sout.sin_addr|
000021e0  2c 20 68 70 2d 3e 68 5f  6c 65 6e 67 74 68 29 3b  |, hp->h_length);|
000021f0  0a 20 20 20 20 20 20 20  20 20 20 73 6f 75 74 2e  |.          sout.|
00002200  73 69 6e 5f 66 61 6d 69  6c 79 3d 20 68 70 2d 3e  |sin_family= hp->|
00002210  68 5f 61 64 64 72 74 79  70 65 3b 0a 23 69 66 64  |h_addrtype;.#ifd|
00002220  65 66 20 44 45 42 55 47  0a 74 72 61 63 6b 65 72  |ef DEBUG.tracker|
00002230  5f 70 72 69 6e 74 66 28  22 4c 6f 63 61 6c 20 69  |_printf("Local i|
00002240  2f 66 20 20 3d 20 25 73  5c 6e 22 2c 6c 63 6c 5f  |/f  = %s\n",lcl_|
00002250  68 6f 73 74 29 3b 0a 23  65 6e 64 69 66 0a 0a 20  |host);.#endif.. |
00002260  20 20 20 20 20 20 20 20  20 69 66 20 28 73 74 72  |         if (str|
00002270  63 6d 70 28 6c 63 6c 5f  73 65 72 76 2c 22 61 75  |cmp(lcl_serv,"au|
00002280  74 6f 22 29 29 20 7b 0a  20 20 20 20 20 20 20 20  |to")) {.        |
00002290  20 20 20 20 73 6f 75 74  2e 73 69 6e 5f 70 6f 72  |    sout.sin_por|
000022a0  74 3d 68 74 6f 6e 73 28  61 74 6f 69 28 6c 63 6c  |t=htons(atoi(lcl|
000022b0  5f 73 65 72 76 29 29 3b  0a 0a 20 20 20 20 20 20  |_serv));..      |
000022c0  20 2f 2a 20 54 68 65 72  65 20 69 73 20 61 6e 20  | /* There is an |
000022d0  69 6d 70 6c 69 63 69 74  20 61 73 73 75 6d 61 74  |implicit assumat|
000022e0  69 6f 6e 20 68 65 72 65  20 74 68 61 74 20 6f 75  |ion here that ou|
000022f0  72 20 68 6f 73 74 73 20  2a 2f 0a 20 20 20 20 20  |r hosts */.     |
00002300  20 20 2f 2a 20 61 6e 64  20 74 68 65 20 6e 65 74  |  /* and the net|
00002310  77 6f 72 6b 20 72 65 70  72 65 73 65 6e 74 61 74  |work representat|
00002320  69 6f 6e 73 20 6f 66 20  30 20 61 72 65 20 74 68  |ions of 0 are th|
00002330  65 20 73 61 6d 65 20 20  20 2a 2f 0a 20 20 20 20  |e same   */.    |
00002340  20 20 20 2f 2a 20 54 68  69 73 20 77 69 6c 6c 20  |   /* This will |
00002350  62 65 20 74 72 75 65 20  66 6f 72 20 61 6c 6c 20  |be true for all |
00002360  62 69 67 20 26 20 6c 69  74 74 6c 65 20 65 6e 64  |big & little end|
00002370  69 61 6e 20 20 20 20 20  20 20 2a 2f 0a 20 20 20  |ian       */.   |
00002380  20 20 20 20 2f 2a 20 6d  61 63 68 69 6e 65 73 2c  |    /* machines,|
00002390  20 77 68 69 63 68 20 75  73 65 20 32 27 73 20 63  | which use 2's c|
000023a0  6f 6d 70 6c 65 6d 65 6e  74 2e 20 20 20 20 20 20  |omplement.      |
000023b0  20 20 20 20 20 20 20 20  20 20 20 2a 2f 0a 20 20  |           */.  |
000023c0  20 20 20 20 20 20 20 20  20 20 69 66 20 28 73 6f  |          if (so|
000023d0  75 74 2e 73 69 6e 5f 70  6f 72 74 3d 3d 30 29 20  |ut.sin_port==0) |
000023e0  7b 0a 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |{.              |
000023f0  73 70 3d 67 65 74 73 65  72 76 62 79 6e 61 6d 65  |sp=getservbyname|
00002400  28 6c 63 6c 5f 73 65 72  76 2c 70 72 6f 74 6f 29  |(lcl_serv,proto)|
00002410  3b 0a 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |;.              |
00002420  69 66 20 28 73 70 20 3d  3d 20 4e 55 4c 4c 29 20  |if (sp == NULL) |
00002430  7b 0a 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |{.              |
00002440  20 20 65 72 72 73 74 72  3d 22 43 61 6e 27 74 20  |  errstr="Can't |
00002450  72 65 73 6f 6c 76 65 20  6c 6f 63 61 6c 20 73 65  |resolve local se|
00002460  72 76 69 63 65 5c 6e 22  3b 0a 20 20 20 20 20 20  |rvice\n";.      |
00002470  20 20 20 20 20 20 20 20  20 20 72 65 74 75 72 6e  |          return|
00002480  20 2d 31 3b 0a 20 20 20  20 20 20 20 20 20 20 20  | -1;.           |
00002490  20 20 20 20 7d 0a 20 20  20 20 20 20 20 20 20 20  |    }.          |
000024a0  20 20 20 20 73 6f 75 74  2e 73 69 6e 5f 70 6f 72  |    sout.sin_por|
000024b0  74 20 20 3d 20 73 70 2d  3e 73 5f 70 6f 72 74 3b  |t  = sp->s_port;|
000024c0  0a 20 20 20 20 20 20 20  20 20 20 20 20 7d 0a 20  |.            }. |
000024d0  20 20 20 20 20 20 20 20  20 7d 0a 23 69 66 64 65  |         }.#ifde|
000024e0  66 20 44 45 42 55 47 0a  74 72 61 63 6b 65 72 5f  |f DEBUG.tracker_|
000024f0  70 72 69 6e 74 66 28 22  52 65 6d 6f 74 65 20 70  |printf("Remote p|
00002500  6f 72 74 20 6e 6f 20 3d  20 25 64 5c 6e 22 2c 6e  |ort no = %d\n",n|
00002510  74 6f 68 73 28 73 69 6e  2e 73 69 6e 5f 70 6f 72  |tohs(sin.sin_por|
00002520  74 29 29 3b 0a 23 65 6e  64 69 66 0a 0a 23 69 66  |t));.#endif..#if|
00002530  64 65 66 20 44 45 42 55  47 0a 74 72 61 63 6b 65  |def DEBUG.tracke|
00002540  72 5f 73 69 6d 70 6c 65  28 22 74 72 79 69 6e 67  |r_simple("trying|
00002550  20 74 6f 20 62 69 6e 64  20 73 6f 63 6b 65 74 20  | to bind socket |
00002560  2e 2e 2e 2e 20 22 29 3b  0a 23 65 6e 64 69 66 0a  |.... ");.#endif.|
00002570  20 20 20 20 20 20 20 20  20 20 20 20 69 66 20 28  |            if (|
00002580  62 69 6e 64 28 73 2c 26  73 6f 75 74 2c 73 69 7a  |bind(s,&sout,siz|
00002590  65 6f 66 28 73 6f 75 74  29 29 3d 3d 2d 31 29 20  |eof(sout))==-1) |
000025a0  72 65 74 75 72 6e 20 2d  31 3b 0a 23 69 66 64 65  |return -1;.#ifde|
000025b0  66 20 44 45 42 55 47 0a  74 72 61 63 6b 65 72 5f  |f DEBUG.tracker_|
000025c0  73 69 6d 70 6c 65 28 22  64 6f 6e 65 5c 6e 22 29  |simple("done\n")|
000025d0  3b 0a 23 65 6e 64 69 66  0a 0a 0a 20 20 20 20 20  |;.#endif...     |
000025e0  20 20 20 20 7d 0a 20 20  20 20 20 20 7d 0a 20 20  |    }.      }.  |
000025f0  20 20 69 6f 63 74 6c 28  73 2c 46 49 4f 4d 4f 44  |  ioctl(s,FIOMOD|
00002600  45 2c 26 6f 6e 65 29 3b  0a 23 69 66 64 65 66 20  |E,&one);.#ifdef |
00002610  44 45 42 55 47 0a 74 72  61 63 6b 65 72 5f 73 69  |DEBUG.tracker_si|
00002620  6d 70 6c 65 28 22 74 72  79 69 6e 67 20 74 6f 20  |mple("trying to |
00002630  63 6f 6e 6e 65 63 74 20  2e 2e 2e 2e 20 22 29 3b  |connect .... ");|
00002640  0a 23 65 6e 64 69 66 0a  20 20 20 20 69 66 20 28  |.#endif.    if (|
00002650  63 6f 6e 6e 65 63 74 28  73 2c 26 73 69 6e 2c 73  |connect(s,&sin,s|
00002660  69 7a 65 6f 66 28 73 69  6e 29 29 3d 3d 2d 31 29  |izeof(sin))==-1)|
00002670  20 72 65 74 75 72 6e 20  2d 31 3b 0a 23 69 66 64  | return -1;.#ifd|
00002680  65 66 20 44 45 42 55 47  0a 74 72 61 63 6b 65 72  |ef DEBUG.tracker|
00002690  5f 73 69 6d 70 6c 65 28  22 64 6f 6e 65 5c 6e 22  |_simple("done\n"|
000026a0  29 3b 0a 23 65 6e 64 69  66 0a 20 20 20 20 72 65  |);.#endif.    re|
000026b0  74 75 72 6e 20 73 3b 0a  20 7d 0a 0a 0a 69 6e 74  |turn s;. }...int|
000026c0  20 73 6f 63 6b 32 66 64  28 63 68 61 72 2a 20 66  | sock2fd(char* f|
000026d0  69 6c 65 6e 61 6d 65 29  0a 20 7b 0a 20 20 20 63  |ilename). {.   c|
000026e0  68 61 72 20 2a 66 6c 61  67 73 2c 2a 64 65 73 63  |har *flags,*desc|
000026f0  3b 0a 0a 20 20 20 66 6c  61 67 73 3d 73 74 72 73  |;..   flags=strs|
00002700  74 72 28 66 69 6c 65 6e  61 6d 65 2c 22 3a 22 29  |tr(filename,":")|
00002710  3b 20 2f 2a 53 68 6f 75  6c 64 20 62 65 20 31 73  |; /*Should be 1s|
00002720  74 20 63 68 61 72 20 2a  2f 0a 20 20 20 64 65 73  |t char */.   des|
00002730  63 3d 73 74 72 73 74 72  28 66 69 6c 65 6e 61 6d  |c=strstr(filenam|
00002740  65 2c 22 2e 24 2e 22 29  3b 0a 20 20 20 69 66 20  |e,".$.");.   if |
00002750  28 21 64 65 73 63 29 0a  20 20 20 20 20 72 65 74  |(!desc).     ret|
00002760  75 72 6e 20 2d 31 3b 0a  20 20 20 69 66 20 69 73  |urn -1;.   if is|
00002770  64 69 67 69 74 28 64 65  73 63 5b 33 5d 29 0a 20  |digit(desc[3]). |
00002780  20 20 7b 0a 20 20 20 20  20 72 65 74 75 72 6e 20  |  {.     return |
00002790  61 74 6f 69 28 64 65 73  63 5b 33 5d 29 3b 0a 20  |atoi(desc[3]);. |
000027a0  20 20 7d 0a 0a 20 20 20  72 65 74 75 72 6e 20 2d  |  }..   return -|
000027b0  31 3b 0a 20 20 20 2f 2a  57 65 20 69 67 6e 6f 72  |1;.   /*We ignor|
000027c0  65 20 74 68 65 20 6d 65  61 6e 69 6e 67 20 6f 66  |e the meaning of|
000027d0  20 74 68 65 20 66 6c 61  67 73 20 73 65 63 74 69  | the flags secti|
000027e0  6f 6e 20 63 75 72 72 65  6e 74 6c 79 20 2a 2f 0a  |on currently */.|
000027f0  20 7d 0a                                          | }.|
000027f3