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/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2007 InspIRCd Development Team
* See: http://www.inspircd.org/wiki/index.php/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
/* $Core: libIRCDwildcard */
#include "inspircd.h"
#include "hashcomp.h"
#include "inspstring.h"
using irc::sockets::MatchCIDR;
// Wed 27 Apr 2005 - Brain
// I've taken our our old wildcard routine -
// although comprehensive, it was topheavy and very
// slow, and ate masses of cpu when doing lots of
// comparisons. This is the 'de-facto' routine used
// by many, nobody really knows who wrote it first
// or what license its under, i've seen examples of it
// (unattributed to any author) all over the 'net.
// For now, we'll just consider this public domain.
CoreExport bool csmatch(const char *str, const char *mask)
{
unsigned char *cp = NULL, *mp = NULL;
unsigned char* string = (unsigned char*)str;
unsigned char* wild = (unsigned char*)mask;
while ((*string) && (*wild != '*'))
{
if ((*wild != *string) && (*wild != '?'))
{
return 0;
}
wild++;
string++;
}
while (*string)
{
if (*wild == '*')
{
if (!*++wild)
{
return 1;
}
mp = wild;
cp = string+1;
}
else
if ((*wild == *string) || (*wild == '?'))
{
wild++;
string++;
}
else
{
wild = mp;
string = cp++;
}
}
while (*wild == '*')
{
wild++;
}
return !*wild;
}
CoreExport bool match(const char *str, const char *mask)
{
unsigned char *cp = NULL, *mp = NULL;
unsigned char* string = (unsigned char*)str;
unsigned char* wild = (unsigned char*)mask;
while ((*string) && (*wild != '*'))
{
if ((lowermap[*wild] != lowermap[*string]) && (*wild != '?'))
{
return 0;
}
wild++;
string++;
}
while (*string)
{
if (*wild == '*')
{
if (!*++wild)
{
return 1;
}
mp = wild;
cp = string+1;
}
else
if ((lowermap[*wild] == lowermap[*string]) || (*wild == '?'))
{
wild++;
string++;
}
else
{
wild = mp;
string = cp++;
}
}
while (*wild == '*')
{
wild++;
}
return !*wild;
}
/* Overloaded function that has the option of using cidr */
CoreExport bool match(const char *str, const char *mask, bool use_cidr_match)
{
if (use_cidr_match && MatchCIDR(str, mask, true))
return true;
return match(str, mask);
}
CoreExport bool match(bool case_sensitive, const char *str, const char *mask, bool use_cidr_match)
{
if (use_cidr_match && MatchCIDR(str, mask, true))
return true;
return csmatch(str, mask);
}
CoreExport bool match(bool case_sensitive, const char *str, const char *mask)
{
return case_sensitive ? csmatch(str, mask) : match(str, mask);
}
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