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BitchX
GitHub Repository: BitchX/BitchX1.3
 Path: blob/master/dll/identd/identd.c
1072 views
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/*

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 * experimental identd module for bx. 

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 * adds a /set identd on/off toggle.

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 * adds a /set identd_user <username>

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 * and implements a identd server for bx. This obviously won't work unless

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 * your running as root. And is mainly meant for use with os/2 and win95 

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 * ports. 

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 * Copyright 1998 Colten Edwards. 

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 */ 

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#include "irc.h"

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#include "struct.h"

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#include "ircaux.h"

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#include "output.h"

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#include "vars.h"

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#include "module.h"

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#define INIT_MODULE

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#include "modval.h"

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void identd_read(int s)

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{

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char buffer[100];

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char *bufptr;

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unsigned int lport = 0, rport = 0;

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	*buffer = 0;

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	bufptr = buffer;

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	if (recv(s, buffer, sizeof(buffer)-1, 0) <=0)

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	{

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		bitchsay("ERROR in identd request");

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		close_socketread(s);

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		return;

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	}

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	if (sscanf(bufptr, "%d , %d", &lport, &rport) == 2)

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	{

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		if (lport < 1 || rport < 1 || lport > 32767 || rport > 32767)

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		{

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			close_socketread(s);

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			bitchsay("ERROR port for identd bad [%d:%d]", lport, rport);

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			return;

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		}

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		sprintf(buffer, "%hu , %hu : USERID : UNIX : %s", lport, rport, get_dllstring_var("identd_user"));

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		dcc_printf(s, "%s\r\n", buffer);

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		bitchsay("Sent IDENTD request %s", buffer);

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		set_socketflags(identd, now);

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	}

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	close_socketread(s);

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}

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void identd_handler(int s)

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{

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struct  sockaddr_in     remaddr;

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int sra = sizeof(struct sockaddr_in);

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int sock = -1;

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#if 0

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	if (!(get_dllint_var("identd")) || !(get_dllstring_var("identd_user")))

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	{

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		int opt = 0;

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		int optlen = sizeof(opt);

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		getsockopt(sock, SOL_SOCKET, SO_ERROR, (char *)&opt, optlen);

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		return;

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	}

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#endif

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	if ((sock = accept(s, (struct sockaddr *) &remaddr, &sra)) > -1)

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	{

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		if (!(get_dllint_var("identd")) || !(get_dllstring_var("identd_user")))

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		{

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			close(sock);

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			return;

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		}

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		add_socketread(sock, s, 0, inet_ntoa(remaddr.sin_addr), identd_read, NULL);

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		add_sockettimeout(sock, 20, NULL);

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	}

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}

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int start_identd(void)

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{

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int sock = -1;

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unsigned short port = 113;

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	if (identd != -1)

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		return -1;

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	if ((sock = connect_by_number(NULL, &port, SERVICE_SERVER, PROTOCOL_TCP, 1)) > -1)

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		add_socketread(sock, port, 0, NULL, identd_handler, NULL);

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	identd = sock;

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	return 0;

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}

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int Identd_Cleanup(IrcCommandDll **intp, Function_ptr *global_table)

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{

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	if (identd != -1)

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	{

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		close_socketread(identd);

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		identd = -1;

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	}

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	remove_module_proc(VAR_PROC, MODULENAME, NULL, NULL);

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	return 0;

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}

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int Identd_Init(IrcCommandDll **intp, Function_ptr *global_table)

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{

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#if !defined(__EMX__) && !defined(WINNT)

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	if (getuid() && geteuid())

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	{

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		return -1;

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	}

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#endif

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	initialize_module("Identd");

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	add_module_proc(VAR_PROC, MODULENAME, "identd", NULL, BOOL_TYPE_VAR, 0, NULL, NULL);

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	add_module_proc(VAR_PROC, MODULENAME, "identd_user", NULL, STR_TYPE_VAR, 0, NULL, NULL);

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	put_it("%s", convert_output_format("$G $0 v$1 by panasync", "%s %s", MODULENAME, "0.01"));

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	return start_identd();

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}

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