1 /**
2 * \file os_uuid.c
3 * \brief Create a new UUID.
4 * \author Copyright (c) 2002-2008 Jason Perkins and the Premake project
5 */
6
7 #include "premake.h"
8
9
os_uuid(lua_State * L)10 int os_uuid(lua_State* L)
11 {
12 unsigned char bytes[16];
13 char uuid[38];
14
15 #if PLATFORM_WINDOWS
16
17 static int (__stdcall *CoCreateGuid)(char*) = NULL;
18 if (CoCreateGuid == NULL)
19 {
20 HMODULE hOleDll = LoadLibrary("OLE32.DLL");
21 CoCreateGuid = (int(__stdcall*)(char*))GetProcAddress(hOleDll, "CoCreateGuid");
22 }
23 CoCreateGuid((char*)bytes);
24
25 #else
26 int result;
27
28 /* not sure how to get a UUID here, so I fake it */
29 FILE* rnd = fopen("/dev/urandom", "rb");
30 result = fread(bytes, 16, 1, rnd);
31 fclose(rnd);
32 if (!result)
33 return 0;
34 #endif
35
36 sprintf(uuid, "%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
37 bytes[0], bytes[1], bytes[2], bytes[3],
38 bytes[4], bytes[5],
39 bytes[6], bytes[7],
40 bytes[8], bytes[9],
41 bytes[10], bytes[11], bytes[12], bytes[13], bytes[14], bytes[15]);
42
43 lua_pushstring(L, uuid);
44 return 1;
45 }
46