62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
/* $Header: /pjproject-0.3/pjlib/src/pj/guid_win32.c 4 10/14/05 12:26a Bennylp $ */
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/* $Log: /pjproject-0.3/pjlib/src/pj/guid_win32.c $
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*
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* 4 10/14/05 12:26a Bennylp
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* Finished error code framework, some fixes in ioqueue, etc. Pretty
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* major.
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*
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* 3 9/17/05 10:37a Bennylp
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* Major reorganization towards version 0.3.
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*
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*/
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#include <pj/guid.h>
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#include <pj/string.h>
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#include <pj/sock.h>
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#include <windows.h>
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#include <objbase.h>
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#include <pj/os.h>
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const unsigned PJ_GUID_STRING_LENGTH=32;
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PJ_INLINE(void) hex2digit(unsigned value, char *p)
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{
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static char hex[] = {'0', '1', '2', '3', '4', '5', '6', '7',
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'8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
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*p++ = hex[ (value & 0xF0) >> 4 ];
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*p++ = hex[ (value & 0x0F) ];
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}
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static void guid_to_str( const GUID *guid, pj_str_t *str )
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{
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unsigned i;
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GUID guid_copy;
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const unsigned char *src = (const unsigned char*)&guid_copy;
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char *dst = str->ptr;
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pj_memcpy(&guid_copy, guid, sizeof(*guid));
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guid_copy.Data1 = pj_ntohl(guid_copy.Data1);
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guid_copy.Data2 = pj_ntohs(guid_copy.Data2);
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guid_copy.Data3 = pj_ntohs(guid_copy.Data3);
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for (i=0; i<16; ++i) {
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hex2digit( *src, dst );
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dst += 2;
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++src;
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}
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str->slen = 32;
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}
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PJ_DEF(pj_str_t*) pj_generate_unique_string(pj_str_t *str)
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{
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GUID guid;
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PJ_CHECK_STACK();
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CoCreateGuid(&guid);
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guid_to_str( &guid, str );
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return str;
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}
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