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/* $Header: /pjproject-0.3/pjlib/src/pj/guid_win32.c 4 10/14/05 12:26a Bennylp $ */
/* $Log: /pjproject-0.3/pjlib/src/pj/guid_win32.c $
*
* 4 10/14/05 12:26a Bennylp
* Finished error code framework, some fixes in ioqueue, etc. Pretty
* major.
*
* 3 9/17/05 10:37a Bennylp
* Major reorganization towards version 0.3.
*
*/
#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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