make sure variables are initialized before use

Jan Willamowius

2019-04-21 374a60fa001de3e41c7e3d0782b4c2361479f316

 src/library/os/os.c

@@ -88,6 +88,8 @@
#include <Windows.h>
#pragma comment(lib, "IPHLPAPI.lib")

unsigned char* unbase64(const char* ascii, int len, int *flen);

static void printHash(HCRYPTHASH* hHash) {
   BYTE *pbHash;
   DWORD dwHashLen;