204 lines
4.2 KiB
C
204 lines
4.2 KiB
C
/*
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
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* USA
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*
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* $Id: tools.c 25040 2008-01-23 16:11:34Z androsyn $
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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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* The TOOLS_C define builds versions of the functions in tools.h
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* so that they end up in the resulting object files. If its not
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* defined, tools.h will build inlined versions of the functions
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* on supported compilers
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*/
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#define _GNU_SOURCE 1
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#include <libratbox_config.h>
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#include <ratbox_lib.h>
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#include <rb_tools.h>
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/*
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* init_rb_dlink_nodes
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*
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*/
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static rb_bh *dnode_heap;
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void
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rb_init_rb_dlink_nodes(size_t dh_size)
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{
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dnode_heap = rb_bh_create(sizeof(rb_dlink_node), dh_size, "librb_dnode_heap");
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if(dnode_heap == NULL)
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rb_outofmemory();
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}
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/*
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* make_rb_dlink_node
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*
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* inputs - NONE
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* output - pointer to new rb_dlink_node
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* side effects - NONE
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*/
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rb_dlink_node *
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rb_make_rb_dlink_node(void)
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{
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return(rb_bh_alloc(dnode_heap));
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}
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/*
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* free_rb_dlink_node
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*
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* inputs - pointer to rb_dlink_node
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* output - NONE
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* side effects - free given rb_dlink_node
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*/
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void
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rb_free_rb_dlink_node(rb_dlink_node * ptr)
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{
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assert(ptr != NULL);
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rb_bh_free(dnode_heap, ptr);
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}
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/* rb_string_to_array()
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* Changes a given buffer into an array of parameters.
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* Taken from ircd-ratbox.
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*
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* inputs - string to parse, array to put in
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* outputs - number of parameters
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*/
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int
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rb_string_to_array(char *string, char **parv, int maxpara)
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{
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char *p, *xbuf = string;
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int x = 0;
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parv[x] = NULL;
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if(string == NULL || string[0] == '\0')
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return x;
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while (*xbuf == ' ') /* skip leading spaces */
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xbuf++;
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if(*xbuf == '\0') /* ignore all-space args */
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return x;
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do
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{
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if(*xbuf == ':') /* Last parameter */
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{
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xbuf++;
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parv[x++] = xbuf;
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parv[x] = NULL;
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return x;
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}
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else
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{
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parv[x++] = xbuf;
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parv[x] = NULL;
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if((p = strchr(xbuf, ' ')) != NULL)
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{
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*p++ = '\0';
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xbuf = p;
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}
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else
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return x;
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}
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while (*xbuf == ' ')
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xbuf++;
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if(*xbuf == '\0')
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return x;
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}
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while (x < maxpara - 1);
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if(*p == ':')
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p++;
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parv[x++] = p;
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parv[x] = NULL;
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return x;
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}
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#ifndef HAVE_STRLCAT
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size_t
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rb_strlcat(char *dest, const char *src, size_t count)
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{
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size_t dsize = strlen(dest);
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size_t len = strlen(src);
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size_t res = dsize + len;
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dest += dsize;
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count -= dsize;
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if (len >= count)
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len = count-1;
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memcpy(dest, src, len);
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dest[len] = 0;
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return res;
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}
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#else
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size_t
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rb_strlcat(char *dest, const char *src, size_t count)
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{
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return strlcat(dest, src, count);
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}
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#endif
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#ifndef HAVE_STRLCPY
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size_t
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rb_strlcpy(char *dest, const char *src, size_t size)
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{
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size_t ret = strlen(src);
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if (size) {
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size_t len = (ret >= size) ? size-1 : ret;
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memcpy(dest, src, len);
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dest[len] = '\0';
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}
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return ret;
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}
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#else
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size_t
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rb_strlcpy(char *dest, const char *src, size_t size)
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{
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return strlcpy(dest, src, size);
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}
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#endif
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#ifndef HAVE_STRNLEN
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size_t
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rb_strnlen(const char *s, size_t count)
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{
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const char *sc;
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for (sc = s; count-- && *sc != '\0'; ++sc)
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;;
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return sc - s;
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}
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#else
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size_t
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rb_strnlen(const char *s, size_t count)
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{
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return strnlen(s, count);
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}
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#endif
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