Windows:使用CoCreateGuid函數(GUID)
#include <objbase.h>
#include <stdio.h>
#define GUID_LEN 64
int main(int argc, char* argv[])
{
char buffer[GUID_LEN] = { 0 };
GUID guid;
if ( CoCreateGuid(&guid) )
{
fprintf(stderr, "create guid error\n");
return -1;
}
_snprintf(buffer, sizeof(buffer),
"%08X-%04X-%04x-%02X%02X-%02X%02X%02X%02X%02X%02X",
guid.Data1, guid.Data2, guid.Data3,
guid.Data4[0], guid.Data4[1], guid.Data4[2],
guid.Data4[3], guid.Data4[4], guid.Data4[5],
guid.Data4[6], guid.Data4[7]);
printf("guid: %s\n", buffer);
return 0;
}
Linux:使用uuid_generate函數(UUID)
//編譯命令:gcc atemp.c -o atemp -luuid
#include <stdio.h>
#include <uuid/uuid.h>
int main()
{
uuid_t uu;
int i;
uuid_generate( uu );
for(i=0;i<16;i++)
{
printf("%02X-",uu[i]);
}
printf("\n");
return 0;
}