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- /*
- * ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2005 Alexander Barton (alex@barton.de)
- *
- * 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.
- * Please read the file COPYING, README and AUTHORS for more information.
- *
- * Management of IRC lists: ban, invite, ...
- */
- #include "portab.h"
- static char UNUSED id[] = "$Id: lists.c,v 1.18.2.3 2007/04/03 22:08:52 fw Exp $";
- #include "imp.h"
- #include <assert.h>
- #include "defines.h"
- #include "conn.h"
- #include "client.h"
- #include "channel.h"
- #include "log.h"
- #include "match.h"
- #include "messages.h"
- #include "irc-write.h"
- #include <stdlib.h>
- #include <string.h>
- #include <strings.h>
- #include "exp.h"
- #include "lists.h"
- #define MASK_LEN (2*CLIENT_HOST_LEN)
- struct list_elem {
- struct list_elem *next;
- char mask[MASK_LEN];
- bool onlyonce;
- };
- GLOBAL const char *
- Lists_GetMask(const struct list_elem *e)
- {
- return e->mask;
- }
- GLOBAL struct list_elem*
- Lists_GetFirst(const struct list_head *h)
- {
- return h->first;
- }
- GLOBAL struct list_elem*
- Lists_GetNext(const struct list_elem *e)
- {
- return e->next;
- }
- bool
- Lists_Add(struct list_head *header, const char *Mask, bool OnlyOnce )
- {
- struct list_elem *e, *newelem;
- assert( header != NULL );
- assert( Mask != NULL );
- if (Lists_CheckDupeMask(header, Mask )) return true;
- e = Lists_GetFirst(header);
- newelem = malloc(sizeof(struct list_elem));
- if( ! newelem ) {
- Log( LOG_EMERG, "Can't allocate memory for new Ban/Invite entry!" );
- return false;
- }
- strlcpy( newelem->mask, Mask, sizeof( newelem->mask ));
- newelem->onlyonce = OnlyOnce;
- newelem->next = e;
- header->first = newelem;
- LogDebug("Added \"%s\" to invite list", Mask);
- return true;
- }
- static void
- Lists_Unlink(struct list_head *header, struct list_elem *p, struct list_elem *victim)
- {
- assert(victim != NULL);
- assert(header != NULL);
- if (p) p->next = victim->next;
- else header->first = victim->next;
- free(victim);
- }
- GLOBAL void
- Lists_Del(struct list_head *header, const char *Mask)
- {
- struct list_elem *e, *last, *victim;
- assert( header != NULL );
- assert( Mask != NULL );
- last = NULL;
- e = Lists_GetFirst(header);
- while( e ) {
- if(strcasecmp( e->mask, Mask ) == 0 ) {
- LogDebug("Deleted \"%s\" from list", e->mask);
- victim = e;
- e = victim->next;
- Lists_Unlink(header, last, victim);
- continue;
- }
- last = e;
- e = e->next;
- }
- }
- GLOBAL void
- Lists_Free(struct list_head *head)
- {
- struct list_elem *e, *victim;
- assert(head != NULL);
- e = head->first;
- head->first = NULL;
- while (e) {
- LogDebug("Deleted \"%s\" from invite list" , e->mask);
- victim = e;
- e = e->next;
- free( victim );
- }
- }
- GLOBAL bool
- Lists_CheckDupeMask(const struct list_head *h, const char *Mask )
- {
- struct list_elem *e;
- e = h->first;
- while (e) {
- if (strcasecmp( e->mask, Mask ) == 0 )
- return true;
- e = e->next;
- }
- return false;
- }
- GLOBAL char *
- Lists_MakeMask( char *Pattern )
- {
- /* This function generats a valid IRC mask of "any" string. This
- * mask is only valid until the next call to Lists_MakeMask(),
- * because a single global buffer is used. You have to copy the
- * generated mask to some sane location yourself! */
- static char TheMask[MASK_LEN];
- char *excl, *at;
- assert( Pattern != NULL );
- excl = strchr( Pattern, '!' );
- at = strchr( Pattern, '@' );
- if(( at ) && ( at < excl )) excl = NULL;
- if(( ! at ) && ( ! excl ))
- {
- /* Neither "!" nor "@" found: use string as nick name */
- strlcpy( TheMask, Pattern, sizeof( TheMask ) - 5 );
- strlcat( TheMask, "!*@*", sizeof( TheMask ));
- return TheMask;
- }
- if(( ! at ) && ( excl ))
- {
- /* Domain part is missing */
- strlcpy( TheMask, Pattern, sizeof( TheMask ) - 3 );
- strlcat( TheMask, "@*", sizeof( TheMask ));
- return TheMask;
- }
- if(( at ) && ( ! excl ))
- {
- /* User name is missing */
- *at = '\0'; at++;
- strlcpy( TheMask, Pattern, sizeof( TheMask ) - 5 );
- strlcat( TheMask, "!*@", sizeof( TheMask ));
- strlcat( TheMask, at, sizeof( TheMask ));
- return TheMask;
- }
- /* All parts (nick, user and domain name) are given */
- strlcpy( TheMask, Pattern, sizeof( TheMask ));
- return TheMask;
- } /* Lists_MakeMask */
- bool
- Lists_Check( struct list_head *header, CLIENT *Client)
- {
- struct list_elem *e, *last;
- assert( header != NULL );
- e = header->first;
- last = NULL;
- while( e ) {
- if( Match( e->mask, Client_Mask( Client ))) {
- if( e->onlyonce ) { /* delete entry */
- LogDebug("Deleted \"%s\" from list", e->mask);
- Lists_Unlink(header, last, e);
- }
- return true;
- }
- last = e;
- e = e->next;
- }
- return false;
- }
- /* -eof- */
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