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Code Issues 1 Projects Releases Wiki Activity

remove RtlGenRandom and use the newer BCryptGenRandom

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This commit is contained in:
a 2023-12-14 04:29:42 +02:00
parent a841f43f4b
commit 3afde6e996
5 changed files with 4 additions and 13 deletions
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1
.gitignore vendored
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@ -11,7 +11,6 @@ release/*
/dll/net.pb.h
base.exp
base.lib
rtlgenrandom*
steamclient.exp
steamclient.lib
out/*

5
dll/base.cpp
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@ -22,8 +22,9 @@
static void
randombytes(char * const buf, const size_t size)
{
while (!RtlGenRandom((PVOID) buf, (ULONG) size)) {
PRINT_DEBUG("RtlGenRandom ERROR\n");
// NT_SUCCESS is: return value >= 0, including Ntdef.h causes so many errors
while (BCryptGenRandom(NULL, (PUCHAR) buf, (ULONG) size, BCRYPT_USE_SYSTEM_PREFERRED_RNG) < 0) {
PRINT_DEBUG("BCryptGenRandom ERROR\n");
Sleep(100);
}

4
dll/common_includes.h
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@ -61,9 +61,7 @@
#define MSG_NOSIGNAL 0
#define SystemFunction036 NTAPI SystemFunction036
#include <ntsecapi.h>
#undef SystemFunction036
#include <bcrypt.h>
#ifndef EMU_RELEASE_BUILD
#define PRINT_DEBUG(a, ...) do {FILE *t = fopen("STEAM_LOG.txt", "a"); fprintf(t, "%u " a, GetCurrentThreadId(), __VA_ARGS__); fclose(t); WSASetLastError(0);} while (0)

4
dll/rtlgenrandom.c
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@ -1,4 +0,0 @@
#include <windows.h>
#define RtlGenRandom SystemFunction036
#define DLLEXPORT __declspec(dllexport)
DLLEXPORT BOOLEAN WINAPI RtlGenRandom(PVOID in, ULONG len) {}

3
dll/rtlgenrandom.def
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@ -1,3 +0,0 @@
LIBRARY advapi32.dll
EXPORTS
SystemFunction036