/* $Id$ */ | |
/* | |
* 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; | |
} | |