/usr/include/x86_64-linux-gnu/winpr/stream.h is in libwinpr-dev 1.1.0~git20140921.1.440916e+dfsg1-13+deb9u3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* WinPR: Windows Portable Runtime
* Stream Utils
*
* Copyright 2011 Vic Lee
* Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef WINPR_UTILS_STREAM_H
#define WINPR_UTILS_STREAM_H
#include <winpr/winpr.h>
#include <winpr/wtypes.h>
#include <winpr/endian.h>
#include <winpr/synch.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct _wStreamPool wStreamPool;
struct _wStream
{
BYTE* buffer;
BYTE* pointer;
size_t length;
size_t capacity;
DWORD count;
wStreamPool* pool;
};
typedef struct _wStream wStream;
WINPR_API void Stream_EnsureCapacity(wStream* s, size_t size);
WINPR_API void Stream_EnsureRemainingCapacity(wStream* s, size_t size);
WINPR_API wStream* Stream_New(BYTE* buffer, size_t size);
WINPR_API void Stream_Free(wStream* s, BOOL bFreeBuffer);
#define Stream_Read_UINT8(_s, _v) do { _v = \
*_s->pointer++; } while (0)
#define Stream_Read_UINT16(_s, _v) do { _v = \
(UINT16)(*_s->pointer) + \
(((UINT16)(*(_s->pointer + 1))) << 8); \
_s->pointer += 2; } while (0)
#define Stream_Read_INT16(_s, _v) do { _v = \
(INT16)(*_s->pointer) + \
(((INT16)(*(_s->pointer + 1))) << 8); \
_s->pointer += 2; } while (0)
#define Stream_Read_UINT16_BE(_s, _v) do { _v = \
(((UINT16)(*_s->pointer)) << 8) + \
(UINT16)(*(_s->pointer + 1)); \
_s->pointer += 2; } while (0)
#define Stream_Read_UINT32(_s, _v) do { _v = \
(UINT32)(*_s->pointer) + \
(((UINT32)(*(_s->pointer + 1))) << 8) + \
(((UINT32)(*(_s->pointer + 2))) << 16) + \
(((UINT32)(*(_s->pointer + 3))) << 24); \
_s->pointer += 4; } while (0)
#define Stream_Read_UINT32_BE(_s, _v) do { _v = \
(((UINT32)(*(_s->pointer))) << 24) + \
(((UINT32)(*(_s->pointer + 1))) << 16) + \
(((UINT32)(*(_s->pointer + 2))) << 8) + \
(((UINT32)(*(_s->pointer + 3)))); \
_s->pointer += 4; } while (0)
#define Stream_Read_UINT64(_s, _v) do { _v = \
(UINT64)(*_s->pointer) + \
(((UINT64)(*(_s->pointer + 1))) << 8) + \
(((UINT64)(*(_s->pointer + 2))) << 16) + \
(((UINT64)(*(_s->pointer + 3))) << 24) + \
(((UINT64)(*(_s->pointer + 4))) << 32) + \
(((UINT64)(*(_s->pointer + 5))) << 40) + \
(((UINT64)(*(_s->pointer + 6))) << 48) + \
(((UINT64)(*(_s->pointer + 7))) << 56); \
_s->pointer += 8; } while (0)
#define Stream_Read(_s, _b, _n) do { \
memcpy(_b, (_s->pointer), (_n)); \
_s->pointer += (_n); \
} while (0)
#define Stream_Write_UINT8(_s, _v) do { \
*_s->pointer++ = (UINT8)(_v); } while (0)
#define Stream_Write_UINT16(_s, _v) do { \
*_s->pointer++ = (_v) & 0xFF; \
*_s->pointer++ = ((_v) >> 8) & 0xFF; } while (0)
#define Stream_Write_UINT16_BE(_s, _v) do { \
*_s->pointer++ = ((_v) >> 8) & 0xFF; \
*_s->pointer++ = (_v) & 0xFF; } while (0)
#define Stream_Write_UINT32(_s, _v) do { \
*_s->pointer++ = (_v) & 0xFF; \
*_s->pointer++ = ((_v) >> 8) & 0xFF; \
*_s->pointer++ = ((_v) >> 16) & 0xFF; \
*_s->pointer++ = ((_v) >> 24) & 0xFF; } while (0)
#define Stream_Write_UINT32_BE(_s, _v) do { \
Stream_Write_UINT16_BE(_s, ((_v) >> 16 & 0xFFFF)); \
Stream_Write_UINT16_BE(_s, ((_v) & 0xFFFF)); \
} while (0)
#define Stream_Write_UINT64(_s, _v) do { \
*_s->pointer++ = (UINT64)(_v) & 0xFF; \
*_s->pointer++ = ((UINT64)(_v) >> 8) & 0xFF; \
*_s->pointer++ = ((UINT64)(_v) >> 16) & 0xFF; \
*_s->pointer++ = ((UINT64)(_v) >> 24) & 0xFF; \
*_s->pointer++ = ((UINT64)(_v) >> 32) & 0xFF; \
*_s->pointer++ = ((UINT64)(_v) >> 40) & 0xFF; \
*_s->pointer++ = ((UINT64)(_v) >> 48) & 0xFF; \
*_s->pointer++ = ((UINT64)(_v) >> 56) & 0xFF; } while (0)
#define Stream_Write(_s, _b, _n) do { \
memcpy(_s->pointer, (_b), (_n)); \
_s->pointer += (_n); \
} while (0)
#define Stream_Peek_UINT8(_s, _v) do { _v = \
*_s->pointer; } while (0)
#define Stream_Peek_UINT16(_s, _v) do { _v = \
(UINT16)(*_s->pointer) + \
(((UINT16)(*(_s->pointer + 1))) << 8); \
} while (0)
#define Stream_Peek_UINT32(_s, _v) do { _v = \
(UINT32)(*_s->pointer) + \
(((UINT32)(*(_s->pointer + 1))) << 8) + \
(((UINT32)(*(_s->pointer + 2))) << 16) + \
(((UINT32)(*(_s->pointer + 3))) << 24); \
} while (0)
#define Stream_Peek_UINT64(_s, _v) do { _v = \
(UINT64)(*_s->pointer) + \
(((UINT64)(*(_s->pointer + 1))) << 8) + \
(((UINT64)(*(_s->pointer + 2))) << 16) + \
(((UINT64)(*(_s->pointer + 3))) << 24) + \
(((UINT64)(*(_s->pointer + 4))) << 32) + \
(((UINT64)(*(_s->pointer + 5))) << 40) + \
(((UINT64)(*(_s->pointer + 6))) << 48) + \
(((UINT64)(*(_s->pointer + 7))) << 56); \
} while (0)
#define Stream_Peek(_s, _b, _n) do { \
memcpy(_b, (_s->pointer), (_n)); \
} while (0)
#define Stream_Seek(_s,_offset) _s->pointer += (_offset)
#define Stream_Rewind(_s,_offset) _s->pointer -= (_offset)
#define Stream_Seek_UINT8(_s) Stream_Seek(_s, 1)
#define Stream_Seek_UINT16(_s) Stream_Seek(_s, 2)
#define Stream_Seek_UINT32(_s) Stream_Seek(_s, 4)
#define Stream_Seek_UINT64(_s) Stream_Seek(_s, 8)
#define Stream_Rewind_UINT8(_s) Stream_Rewind(_s, 1)
#define Stream_Rewind_UINT16(_s) Stream_Rewind(_s, 2)
#define Stream_Rewind_UINT32(_s) Stream_Rewind(_s, 4)
#define Stream_Rewind_UINT64(_s) Stream_Rewind(_s, 8)
#define Stream_Zero(_s, _n) do { \
memset(_s->pointer, '\0', (_n)); \
_s->pointer += (_n); \
} while (0)
#define Stream_Fill(_s, _v, _n) do { \
memset(_s->pointer, _v, (_n)); \
_s->pointer += (_n); \
} while (0)
#define Stream_Copy(_dst, _src, _n) do { \
memcpy(_dst->pointer, _src->pointer, _n); \
_dst->pointer += _n; \
_src->pointer += _n; \
} while (0)
#define Stream_Buffer(_s) _s->buffer
#define Stream_GetBuffer(_s, _b) _b = _s->buffer
#define Stream_SetBuffer(_s, _b) _s->buffer = _b
#define Stream_Pointer(_s) _s->pointer
#define Stream_GetPointer(_s, _p) _p = _s->pointer
#define Stream_SetPointer(_s, _p) _s->pointer = _p
#define Stream_Length(_s) _s->length
#define Stream_GetLength(_s, _l) _l = _s->length
#define Stream_SetLength(_s, _l) _s->length = _l
#define Stream_Capacity(_s) _s->capacity
#define Stream_GetCapacity(_s, _c) _c = _s->capacity
#define Stream_SetCapacity(_s, _c) _s->capacity = _c
#define Stream_GetPosition(_s) (_s->pointer - _s->buffer)
#define Stream_SetPosition(_s, _p) _s->pointer = _s->buffer + (_p)
#define Stream_SealLength(_s) _s->length = (_s->pointer - _s->buffer)
#define Stream_GetRemainingLength(_s) (_s->length - (_s->pointer - _s->buffer))
#define Stream_Clear(_s) memset(_s->buffer, 0, _s->capacity)
static INLINE BOOL Stream_SafeSeek(wStream* s, size_t size) {
if (Stream_GetRemainingLength(s) < size)
return FALSE;
Stream_Seek(s, size);
return TRUE;
}
/* StreamPool */
struct _wStreamPool
{
int aSize;
int aCapacity;
wStream** aArray;
int uSize;
int uCapacity;
wStream** uArray;
CRITICAL_SECTION lock;
BOOL synchronized;
size_t defaultSize;
};
WINPR_API wStream* StreamPool_Take(wStreamPool* pool, size_t size);
WINPR_API void StreamPool_Return(wStreamPool* pool, wStream* s);
WINPR_API void Stream_AddRef(wStream* s);
WINPR_API void Stream_Release(wStream* s);
WINPR_API wStream* StreamPool_Find(wStreamPool* pool, BYTE* ptr);
WINPR_API void StreamPool_AddRef(wStreamPool* pool, BYTE* ptr);
WINPR_API void StreamPool_Release(wStreamPool* pool, BYTE* ptr);
WINPR_API void StreamPool_Clear(wStreamPool* pool);
WINPR_API wStreamPool* StreamPool_New(BOOL synchronized, size_t defaultSize);
WINPR_API void StreamPool_Free(wStreamPool* pool);
#ifdef __cplusplus
}
#endif
#endif /* WINPR_UTILS_STREAM_H */
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