NetBSD/libexec/identd/proxy.c

/*	$NetBSD: proxy.c,v 1.4 1997/10/08 07:07:55 mrg Exp $	*/

/*
** proxy.c                         This file implements the proxy() call.
**
** This program is in the public domain and may be used freely by anyone
** who wants to. 
**
** Last update: 12 Dec 1992
**
** Please send bug fixes/bug reports to: Peter Eriksson <pen@lysator.liu.se>
*/

#include <sys/types.h>
#include <sys/time.h>

#include <netinet/in.h>

#ifdef INCLUDE_PROXY
#include <ident.h>
#endif

#include <stdio.h>
#include <errno.h>

#include "identd.h"

int proxy __P((struct in_addr *, struct in_addr *, int, int, struct timeval *));

/*
** This function should establish a connection to a remote IDENT
** server and query it for the information associated with the
** specified connection and the return that to the caller.
**
** Should there be three different timeouts (Connection Establishment,
** Query Transmit and Query Receive)?
*/
int proxy(laddr, faddr, lport, fport, timeout)
  struct in_addr *laddr;
  struct in_addr *faddr;
  int lport;
  int fport;
  struct timeval *timeout;
{
#ifndef INCLUDE_PROXY
  printf("%d , %d : ERROR : %s\r\n",
	 lport, fport,
	 unknown_flag ? "UNKNOWN-ERROR" : "X-NOT-YET-IMPLEMENTED");
  
  return -1;
#else
  id_t *idp;
  char *answer;
  char *opsys;
  char *charset;
  
  idp = id_open(laddr, faddr, timeout);
  if (!idp)
  {
    printf("%d , %d : ERROR : %s\r\n",
	   lport, fport,
	   unknown_flag ? "UNKNOWN-ERROR" : "X-CONNECTION-REFUSED");
    return -1;
  }

  if (id_query(idp, lport, fport, timeout) < 0)
  {
    printf("%d , %d : ERROR : %s\r\n",
	   lport, fport,
	   unknown_flag ? "UNKNOWN-ERROR" : "X-TRANSMIT-QUERY-ERROR");
    id_close(idp);
    return -1;
  }

  switch (id_parse(idp, timeout, &lport, &fport, &answer, &opsys, &charset))
  {
    case 1:
      printf("%d , %d : USERID : %s %s%s : %s\r\n",
	     lport, fport,
	     opsys,
	     charset ? "," : "",
	     charset ? charset : "",
	     answer);
      break;
      
    case 2:
      printf("%d , %d : ERROR : %s\r\n",
	     lport, fport, answer);
      break;
      
    case 0:  /* More to parse - fix this later! */
    case -1: /* Internal error */
    default:
      printf("%d , %d : ERROR : %s\r\n",
	     lport, fport,
	     unknown_flag ? "UNKNOWN-ERROR" : "X-PARSE-REPLY-ERROR");
  }

  id_close(idp);
#endif  
}