/*
 * ----------------------------------------------------------------
 * Night Light IRC Proxy - Client Functions
 * ----------------------------------------------------------------
 * Copyright (C) 1997-2007 Jonas Kvinge <jonas@night-light.net>
 * All rights reserved.
 *
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Last modified by:
 * Jonas Kvinge (24.11.2007)
 *
 */

#define CLIENT_C

#define NEED_SYS_TYPES_H 1		/* Extra types */
#define NEED_SYS_PARAM_H 1		/* Some systems need this */
#define NEED_LIMITS_H 0			/* Kernel limits */
#define NEED_STDARG_H 1			/* va_list, etc */
#define NEED_ERRNO_H 1			/* errno */
#define NEED_CTYPE_H 0			/* isdigit(), etc */
#define NEED_NETINET_IN_H 1		/* in_addr, sockaddr_in, etc */
#define NEED_ARPA_INET_H 1		/* inet_ntoa(), inet_aton(), etc */
#define NEED_STDIO_H 1			/* Standard C UNIX functions */
#define NEED_STDLIB_H 1			/* malloc(), exit(), atoi(), etc */
#define NEED_TIME_H 1			/* time(), etc */
#define NEED_SYSCTL_H 0			/* sysctl(), etc */
#define NEED_SYS_STAT_H 0		/* chmod(), mkdir(), etc */
#define NEED_SYS_UIO_H 0		/* iovec, etc */
#define NEED_FCNTL_H 1			/* open(), creat(), fcntl(), etc */
#define NEED_SYS_IOCTL_H 0		/* ioctl(), etc */
#define NEED_SYS_FILIO_H 0		/* Solaris need this for ioctl(), etc */
#define NEED_UNISTD_H 1			/* Unix standard functions */
#define NEED_STRING_H 1			/* C string functions */
#define NEED_SIGNAL_H 0			/* Signal functions */
#define NEED_SYS_SOCKET_H 1		/* Socket functions */
#define NEED_NETDB_H 1			/* Network database functions */
#define NEED_ARPA_NAMESER_H 0		/* Nameserver definitions */
#define NEED_GETUSERPW_HEADERS 0 	/* Functions to retrive system passwords */
#define NEED_ARES 0			/* Functions needed for ares */
#define NEED_SSL 1			/* Needed for SSL support */

#include "includes.h"

#include "listen.h"

#include "client.h"
#include "client_connection.h"

/* VARIABLES - JONAS (31.07.2001) */

struct Client_Struct *Client_Head = NULL;
struct Client_Struct *Client_Tail = NULL;
unsigned long int G_Clients = 0;

/* CLIENT_ADD - JONAS (01.08.2001) */

struct Client_Struct *client_add(struct Listen_Struct *ListenS, const char *const HostIPSPT) {

  struct Client_Struct *ClientS = NULL;
  struct Client_Struct *ClientS_NEW = NULL;

  assert(HostIPSPT != NULL);

  ClientS_NEW = malloc(sizeof(struct Client_Struct));
  if (ClientS_NEW == NULL) {
    aerrno = AEMALLOC;
    return(NULL);
  }
  memset(ClientS_NEW, 0, sizeof(struct Client_Struct));

  ClientS_NEW->HostIPS = strdup(HostIPSPT);
  if (ClientS_NEW->HostIPS == NULL) {
    free(ClientS_NEW);
    aerrno = AEMALLOC;
    return(NULL);
  }

  ClientS_NEW->PortH = 0;
  ClientS_NEW->PortN = 0;
  ClientS_NEW->FD = FD_NONE;
  ClientS_NEW->Time = NOW;
  ClientS_NEW->ListenS = ListenS;

  memset(&ClientS_NEW->INAddr, 0, sizeof(ClientS_NEW->INAddr));
#if IPV6_SUPPORT
  memset(&ClientS_NEW->INAddr6, 0, sizeof(ClientS_NEW->INAddr6));
#endif

  Client_SetSocket(ClientS_NEW);

  if (Client_Head == NULL) {
    Client_Head = ClientS_NEW;
    Client_Tail = ClientS_NEW;
  }
  else {
    ClientS = Client_Tail;
    ClientS->Next = ClientS_NEW;
    ClientS_NEW->Prev = ClientS;
    Client_Tail = ClientS_NEW;
  }

  G_Clients++;

  aerrno = AESUCCESS;
  return(ClientS_NEW);

}

/* CLIENT_REM FUNCTION - JONAS (01.08.2001) */

void client_rem(struct Client_Struct *ClientS) {

  assert(ClientS != NULL);

  if (ClientS->Prev == NULL) { Client_Head = ClientS->Next; }
  else { ClientS->Prev->Next = ClientS->Next; }

  if (ClientS->Next == NULL) { Client_Tail = ClientS->Prev; }
  else { ClientS->Next->Prev = ClientS->Prev; }

  free(ClientS->HostName);
  free(ClientS->HostIPS);
  free(ClientS->Nick);
  free(ClientS->User);
  free(ClientS->Host);
  free(ClientS->Pass);
  free(ClientS->RecvBuffer);
  free(ClientS->SendBuffer);
  free(ClientS);

  G_Clients--;

}