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/**
* \file os_uuid.c
* \brief Create a new UUID.
* \author Copyright (c) 2002-2008 Jason Perkins and the Premake project
*/
#include "premake.h"
#if PLATFORM_WINDOWS
#include <Objbase.h>
#endif
int os_uuid(lua_State* L)
{
unsigned char bytes[16];
char uuid[38];
#if PLATFORM_WINDOWS
CoCreateGuid((GUID*)bytes);
#else
int result;
/* not sure how to get a UUID here, so I fake it */
FILE* rnd = fopen("/dev/urandom", "rb");
result = fread(bytes, 16, 1, rnd);
fclose(rnd);
if (!result)
return 0;
#endif
sprintf(uuid, "%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
bytes[0], bytes[1], bytes[2], bytes[3],
bytes[4], bytes[5],
bytes[6], bytes[7],
bytes[8], bytes[9],
bytes[10], bytes[11], bytes[12], bytes[13], bytes[14], bytes[15]);
lua_pushstring(L, uuid);
return 1;
}
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