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/*
* libmsn
*
* Copyright (C) 1999, Shane P. Brady <shane@jxie.com>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include "chat_lists.h"
#include "libmsn.h"
/*
** Name: AddUserToChatList
** Purpose: This function adds a user to the current chat list
** Input: chatSession - chat list structure
** userHandle - user's handle
** userFriendlyHandle - user's friendly handle
** index - index of user
** userState - user state
** Output: 0 on success, -1 on failure
*/
int AddUserToChatList(ChatSession *chatSession, char *userHandle,
char *userFriendlyHandle, int index,
UserState userState)
{
GList *node;
ChatUser *cu;
ChatUser *newUser;
node = g_list_find_custom(chatSession->users, userHandle, CompareUserName);
if (node != NULL) {
cu = node->data;
cu->state = userState;
}
newUser = (ChatUser *)malloc(sizeof(ChatUser));
if (newUser == NULL)
return -1;
strcpy(newUser->userHandle, userHandle);
strcpy(newUser->userFriendlyHandle, userFriendlyHandle);
newUser->index = index;
newUser->state = userState;
chatSession->users = g_list_append(chatSession->users, newUser);
chatSession->numOfUsers += 1;
return 0;
}
/*
** Name: RemoveUserFromChatList
** Purpose: This function removes a user from the list
** Input: chatSession - chat list structure
** userHandle - user handle
** Output: 0 on success, -1 on failure
*/
int RemoveUserFromChatList(ChatSession *chatSession, char *userHandle)
{
GList *node;
if (chatSession->users == NULL)
return -1;
node = g_list_find_custom(chatSession->users, userHandle, CompareUserName);
if (node == NULL)
return -1;
chatSession->users = g_list_remove(chatSession->users, node);
free(node->data);
node->data = NULL;
chatSession->numOfUsers--;
return 0;
}
/*
** Name: SearchForUser
** Purpose: This function searches a chat list and returns whether the
** user is indeed, on a list
** Input: chatSession - chat list structure
** handle - handle to search for
** Output: 0 if found, -1 if not
*/
int SearchForUser(ChatSession chatSession, char *handle)
{
GList *node;
node = g_list_find_custom(chatSession.users, handle, CompareUserName);
if (node == NULL)
return 0;
else
return -1;
}
/*
** Name: ChangeUserState
** Purpose: This function changes a users state
** Input: chatSession - chat list structure
** userHandle - user handle
** newState - new state of user
** Output: 0 on success, -1 on failure
*/
int ChangeUserState(ChatSession *chatSession, char *userHandle,
UserState userState)
{
GList *node;
ChatUser *cu;
if (chatSession->users == NULL)
return -1;
node = g_list_find_custom(chatSession->users, userHandle, CompareUserName);
if (node == NULL)
return -1;
cu = node->data;
cu->state = userState;
return 0;
}
/*
** Name: DestroyChatList
** Purpose: This function destroys the list of chat users
** Input: chatSession - chat list structure
** Output: 0 on success, -1 on failure
*/
int DestroyChatList(ChatSession chatSession)
{
GList *node;
ChatUser *cu;
for (node = chatSession.users; node; node=node->next) {
cu = node->data;
free(cu);
node->data = NULL;
cu = NULL;
}
// free(node->data);
g_list_free(chatSession.users);
chatSession.users = NULL;
chatSession.numOfUsers = 0;
return 0;
}
/*
** Name: CompareUserName
** Purpose: This function is used to compare nodes in the list
** Input: a - node
** b - name
** Output: 0 if found, something else
*/
gint CompareUserName(gconstpointer a, gconstpointer b)
{
ChatUser *cu;
char *handle;
handle = (char *)b;
cu = (ChatUser *)a;
if (!handle || !cu->userHandle)
return (-1);
return strcmp(handle, cu->userHandle);
}
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