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Diffstat (limited to 'src/libs/3rdparty/winpty/src/shared/GenRandom.h')
-rw-r--r-- | src/libs/3rdparty/winpty/src/shared/GenRandom.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/libs/3rdparty/winpty/src/shared/GenRandom.h b/src/libs/3rdparty/winpty/src/shared/GenRandom.h new file mode 100644 index 0000000000..746cb1ecf7 --- /dev/null +++ b/src/libs/3rdparty/winpty/src/shared/GenRandom.h @@ -0,0 +1,55 @@ +// Copyright (c) 2016 Ryan Prichard +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to +// deal in the Software without restriction, including without limitation the +// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +// sell copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS +// IN THE SOFTWARE. + +#ifndef WINPTY_GEN_RANDOM_H +#define WINPTY_GEN_RANDOM_H + +// The original MinGW requires that we include wincrypt.h. With MinGW-w64 and +// MSVC, including windows.h is sufficient. +#include <windows.h> +#include <wincrypt.h> + +#include <string> + +#include "OsModule.h" + +class GenRandom { + typedef BOOLEAN WINAPI RtlGenRandom_t(PVOID, ULONG); + + OsModule m_advapi32; + RtlGenRandom_t *m_rtlGenRandom = nullptr; + bool m_cryptProvIsValid = false; + HCRYPTPROV m_cryptProv = 0; + +public: + GenRandom(); + ~GenRandom(); + bool fillBuffer(void *buffer, size_t size); + std::string randomBytes(size_t numBytes); + std::wstring randomHexString(size_t numBytes); + std::wstring uniqueName(); + + // Return true if the crypto context was successfully initialized. + bool valid() const { + return m_rtlGenRandom != nullptr || m_cryptProvIsValid; + } +}; + +#endif // WINPTY_GEN_RANDOM_H |