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/* $Id$ */
/*
* Copyright (C)2003-2006 Benny Prijono <benny@prijono.org>
*
* 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 <pj/guid.h>
#include <pj/string.h>
#include <pj/sock.h>
#include <windows.h>
#include <objbase.h>
#include <pj/os.h>
const unsigned PJ_GUID_STRING_LENGTH=32;
PJ_INLINE(void) hex2digit(unsigned value, char *p)
{
static char hex[] = {'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
*p++ = hex[ (value & 0xF0) >> 4 ];
*p++ = hex[ (value & 0x0F) ];
}
static void guid_to_str( const GUID *guid, pj_str_t *str )
{
unsigned i;
GUID guid_copy;
const unsigned char *src = (const unsigned char*)&guid_copy;
char *dst = str->ptr;
pj_memcpy(&guid_copy, guid, sizeof(*guid));
guid_copy.Data1 = pj_ntohl(guid_copy.Data1);
guid_copy.Data2 = pj_ntohs(guid_copy.Data2);
guid_copy.Data3 = pj_ntohs(guid_copy.Data3);
for (i=0; i<16; ++i) {
hex2digit( *src, dst );
dst += 2;
++src;
}
str->slen = 32;
}
PJ_DEF(pj_str_t*) pj_generate_unique_string(pj_str_t *str)
{
GUID guid;
PJ_CHECK_STACK();
CoCreateGuid(&guid);
guid_to_str( &guid, str );
return str;
}
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