Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #include <pj/guid.h> |
| 21 | #include <pj/string.h> |
| 22 | #include <pj/sock.h> |
| 23 | #include <windows.h> |
| 24 | #include <objbase.h> |
| 25 | #include <pj/os.h> |
| 26 | |
| 27 | |
| 28 | PJ_DEF_DATA(const unsigned) PJ_GUID_STRING_LENGTH=32; |
| 29 | |
| 30 | PJ_DEF(unsigned) pj_GUID_STRING_LENGTH() |
| 31 | { |
| 32 | return PJ_GUID_STRING_LENGTH; |
| 33 | } |
| 34 | |
| 35 | PJ_INLINE(void) hex2digit(unsigned value, char *p) |
| 36 | { |
| 37 | static char hex[] = {'0', '1', '2', '3', '4', '5', '6', '7', |
| 38 | '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; |
| 39 | *p++ = hex[ (value & 0xF0) >> 4 ]; |
| 40 | *p++ = hex[ (value & 0x0F) ]; |
| 41 | } |
| 42 | |
| 43 | static void guid_to_str( GUID *guid, pj_str_t *str ) |
| 44 | { |
| 45 | unsigned i; |
| 46 | const unsigned char *src = (const unsigned char*)guid; |
| 47 | char *dst = str->ptr; |
| 48 | |
| 49 | guid->Data1 = pj_ntohl(guid->Data1); |
| 50 | guid->Data2 = pj_ntohs(guid->Data2); |
| 51 | guid->Data3 = pj_ntohs(guid->Data3); |
| 52 | |
| 53 | for (i=0; i<16; ++i) { |
| 54 | hex2digit( *src, dst ); |
| 55 | dst += 2; |
| 56 | ++src; |
| 57 | } |
| 58 | str->slen = 32; |
| 59 | } |
| 60 | |
| 61 | |
| 62 | PJ_DEF(pj_str_t*) pj_generate_unique_string(pj_str_t *str) |
| 63 | { |
| 64 | GUID guid; |
| 65 | |
| 66 | PJ_CHECK_STACK(); |
| 67 | |
| 68 | CoCreateGuid(&guid); |
| 69 | guid_to_str( &guid, str ); |
| 70 | return str; |
| 71 | } |
| 72 | |