122 lines
2.6 KiB
C
122 lines
2.6 KiB
C
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/*
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* ircd-ratbox: A slightly useful ircd.
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* tools.c: Various functions needed here and there.
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*
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* Copyright (C) 1996-2002 Hybrid Development Team
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* Copyright (C) 2002-2005 ircd-ratbox development team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*
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* $Id: tools.c 1110 2006-03-29 22:55:25Z nenolod $
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*
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* Here is the original header:
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*
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* Useful stuff, ripped from places ..
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* adrian chadd <adrian@creative.net.au>
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*
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* When you update these functions make sure you update the ones in tools.h
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* as well!!!
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*/
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#include "stdinc.h"
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#define TOOLS_C
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#include "tools.h"
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#include "balloc.h"
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#include "s_user.h"
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#ifndef NDEBUG
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/*
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* frob some memory. debugging time.
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* -- adrian
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*/
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void
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mem_frob(void *data, int len)
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{
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unsigned long x = 0xdeadbeef;
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unsigned char *b = (unsigned char *)&x;
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int i;
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char *cdata = data;
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for (i = 0; i < len; i++)
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{
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*cdata = b[i % 4];
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cdata++;
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}
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}
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#endif
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/*
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* init_dlink_nodes
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*
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*/
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extern BlockHeap *dnode_heap;
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void
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init_dlink_nodes(void)
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{
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dnode_heap = BlockHeapCreate(sizeof(dlink_node), DNODE_HEAP_SIZE);
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if(dnode_heap == NULL)
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outofmemory();
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}
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/*
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* make_dlink_node
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*
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* inputs - NONE
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* output - pointer to new dlink_node
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* side effects - NONE
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*/
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dlink_node *
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make_dlink_node(void)
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{
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return(BlockHeapAlloc(dnode_heap));
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}
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/*
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* free_dlink_node
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*
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* inputs - pointer to dlink_node
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* output - NONE
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* side effects - free given dlink_node
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*/
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void
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free_dlink_node(dlink_node * ptr)
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{
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assert(ptr != NULL);
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BlockHeapFree(dnode_heap, ptr);
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}
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/*
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* find_umode_slot
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*
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* inputs - NONE
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* outputs - an available umode bitmask or
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* 0 if no umodes are available
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* side effects - NONE
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*/
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unsigned int
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find_umode_slot(void)
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{
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unsigned int all_umodes = 0, my_umode = 0, i;
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for (i = 0; i < 128; i++)
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all_umodes |= user_modes[i];
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for (my_umode = 1; my_umode && (all_umodes & my_umode);
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my_umode <<= 1);
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return my_umode;
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}
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