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3031 lines
98 KiB
3031 lines
98 KiB
/** @file
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This library provides helper functions to prevent integer overflow during
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type conversion, addition, subtraction, and multiplication.
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Copyright (c) 2017, Microsoft Corporation
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**/
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#ifndef __INT_SAFE_LIB_H__
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#define __INT_SAFE_LIB_H__
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//
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// It is common for -1 to be used as an error value
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//
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#define INT8_ERROR ((INT8) -1)
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#define UINT8_ERROR MAX_UINT8
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#define CHAR8_ERROR ((CHAR8)(MAX_INT8))
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#define INT16_ERROR ((INT16) -1)
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#define UINT16_ERROR MAX_UINT16
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#define CHAR16_ERROR MAX_UINT16
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#define INT32_ERROR ((INT32) -1)
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#define UINT32_ERROR MAX_UINT32
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#define INT64_ERROR ((INT64) -1)
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#define UINT64_ERROR MAX_UINT64
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#define INTN_ERROR ((INTN) -1)
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#define UINTN_ERROR MAX_UINTN
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//
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// CHAR16 is defined to be the same as UINT16, so for CHAR16
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// operations redirect to the UINT16 ones:
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//
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#define SafeInt8ToChar16 SafeInt8ToUint16
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#define SafeInt16ToChar16 SafeInt16ToUint16
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#define SafeInt32ToChar16 SafeInt32ToUint16
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#define SafeUint32ToChar16 SafeUint32ToUint16
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#define SafeInt64ToChar16 SafeInt64ToUint16
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#define SafeUint64ToChar16 SafeUint64ToUint16
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#define SafeIntnToChar16 SafeIntnToUint16
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#define SafeUintnToChar16 SafeUintnToUint16
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#define SafeChar16ToInt8 SafeUint16ToInt8
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#define SafeChar16ToUint8 SafeUint16ToUint8
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#define SafeChar16ToChar8 SafeUint16ToChar8
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#define SafeChar16ToInt16 SafeUint16ToInt16
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#define SafeChar16Mult SafeUint16Mult
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#define SafeChar16Sub SafeUint16Sub
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#define SafeChar16Add SafeUint16Add
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//
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// Conversion functions
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//
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// There are three reasons for having conversion functions:
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//
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// 1. We are converting from a signed type to an unsigned type of the same
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// size, or vice-versa.
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//
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// 2. We are converting to a smaller type, and we could therefore possibly
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// overflow.
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//
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// 3. We are converting to a bigger type, and we are signed and the type we are
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// converting to is unsigned.
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//
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/**
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INT8 -> UINT8 conversion
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Converts the value specified by Operand to a value specified by Result type
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and stores the converted value into the caller allocated output buffer
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specified by Result. The caller must pass in a Result buffer that is at
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least as large as the Result type.
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If Result is NULL, RETURN_INVALID_PARAMETER is returned.
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If the conversion results in an overflow or an underflow condition, then
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Result is set to UINT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
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@param[in] Operand Operand to be converted to new type
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@param[out] Result Pointer to the result of conversion
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@retval RETURN_SUCCESS Successful conversion
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@retval RETURN_BUFFER_TOO_SMALL Overflow
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@retval RETURN_INVALID_PARAMETER Result is NULL
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**/
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RETURN_STATUS
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EFIAPI
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SafeInt8ToUint8 (
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IN INT8 Operand,
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OUT UINT8 *Result
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);
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/**
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INT8 -> CHAR8 conversion
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Converts the value specified by Operand to a value specified by Result type
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and stores the converted value into the caller allocated output buffer
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specified by Result. The caller must pass in a Result buffer that is at
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least as large as the Result type.
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If Result is NULL, RETURN_INVALID_PARAMETER is returned.
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If the conversion results in an overflow or an underflow condition, then
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Result is set to CHAR8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
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@param[in] Operand Operand to be converted to new type
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@param[out] Result Pointer to the result of conversion
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@retval RETURN_SUCCESS Successful conversion
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@retval RETURN_BUFFER_TOO_SMALL Overflow
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@retval RETURN_INVALID_PARAMETER Result is NULL
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**/
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RETURN_STATUS
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EFIAPI
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SafeInt8ToChar8 (
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IN INT8 Operand,
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OUT CHAR8 *Result
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);
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/**
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INT8 -> UINT16 conversion
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Converts the value specified by Operand to a value specified by Result type
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and stores the converted value into the caller allocated output buffer
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specified by Result. The caller must pass in a Result buffer that is at
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least as large as the Result type.
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If Result is NULL, RETURN_INVALID_PARAMETER is returned.
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If the conversion results in an overflow or an underflow condition, then
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Result is set to UINT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
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@param[in] Operand Operand to be converted to new type
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@param[out] Result Pointer to the result of conversion
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@retval RETURN_SUCCESS Successful conversion
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@retval RETURN_BUFFER_TOO_SMALL Overflow
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@retval RETURN_INVALID_PARAMETER Result is NULL
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**/
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RETURN_STATUS
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EFIAPI
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SafeInt8ToUint16 (
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IN INT8 Operand,
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OUT UINT16 *Result
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);
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/**
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INT8 -> UINT32 conversion
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Converts the value specified by Operand to a value specified by Result type
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and stores the converted value into the caller allocated output buffer
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specified by Result. The caller must pass in a Result buffer that is at
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least as large as the Result type.
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If Result is NULL, RETURN_INVALID_PARAMETER is returned.
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If the conversion results in an overflow or an underflow condition, then
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Result is set to UINT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
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@param[in] Operand Operand to be converted to new type
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@param[out] Result Pointer to the result of conversion
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@retval RETURN_SUCCESS Successful conversion
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@retval RETURN_BUFFER_TOO_SMALL Overflow
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@retval RETURN_INVALID_PARAMETER Result is NULL
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**/
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RETURN_STATUS
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EFIAPI
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SafeInt8ToUint32 (
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IN INT8 Operand,
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OUT UINT32 *Result
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);
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/**
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INT8 -> UINTN conversion
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Converts the value specified by Operand to a value specified by Result type
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and stores the converted value into the caller allocated output buffer
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specified by Result. The caller must pass in a Result buffer that is at
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least as large as the Result type.
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If Result is NULL, RETURN_INVALID_PARAMETER is returned.
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If the conversion results in an overflow or an underflow condition, then
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Result is set to UINTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
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@param[in] Operand Operand to be converted to new type
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@param[out] Result Pointer to the result of conversion
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@retval RETURN_SUCCESS Successful conversion
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@retval RETURN_BUFFER_TOO_SMALL Overflow
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@retval RETURN_INVALID_PARAMETER Result is NULL
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**/
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RETURN_STATUS
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EFIAPI
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SafeInt8ToUintn (
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IN INT8 Operand,
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OUT UINTN *Result
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);
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/**
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INT8 -> UINT64 conversion
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Converts the value specified by Operand to a value specified by Result type
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and stores the converted value into the caller allocated output buffer
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specified by Result. The caller must pass in a Result buffer that is at
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least as large as the Result type.
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If Result is NULL, RETURN_INVALID_PARAMETER is returned.
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If the conversion results in an overflow or an underflow condition, then
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Result is set to UINT64_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
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@param[in] Operand Operand to be converted to new type
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@param[out] Result Pointer to the result of conversion
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@retval RETURN_SUCCESS Successful conversion
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@retval RETURN_BUFFER_TOO_SMALL Overflow
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@retval RETURN_INVALID_PARAMETER Result is NULL
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**/
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RETURN_STATUS
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EFIAPI
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SafeInt8ToUint64 (
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IN INT8 Operand,
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OUT UINT64 *Result
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);
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/**
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UINT8 -> INT8 conversion
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Converts the value specified by Operand to a value specified by Result type
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and stores the converted value into the caller allocated output buffer
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specified by Result. The caller must pass in a Result buffer that is at
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least as large as the Result type.
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If Result is NULL, RETURN_INVALID_PARAMETER is returned.
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If the conversion results in an overflow or an underflow condition, then
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Result is set to INT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
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@param[in] Operand Operand to be converted to new type
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@param[out] Result Pointer to the result of conversion
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@retval RETURN_SUCCESS Successful conversion
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@retval RETURN_BUFFER_TOO_SMALL Overflow
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@retval RETURN_INVALID_PARAMETER Result is NULL
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**/
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RETURN_STATUS
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EFIAPI
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SafeUint8ToInt8 (
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IN UINT8 Operand,
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OUT INT8 *Result
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);
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/**
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UINT8 -> CHAR8 conversion
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Converts the value specified by Operand to a value specified by Result type
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and stores the converted value into the caller allocated output buffer
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specified by Result. The caller must pass in a Result buffer that is at
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least as large as the Result type.
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If Result is NULL, RETURN_INVALID_PARAMETER is returned.
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If the conversion results in an overflow or an underflow condition, then
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Result is set to CHAR8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
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@param[in] Operand Operand to be converted to new type
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@param[out] Result Pointer to the result of conversion
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@retval RETURN_SUCCESS Successful conversion
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@retval RETURN_BUFFER_TOO_SMALL Overflow
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@retval RETURN_INVALID_PARAMETER Result is NULL
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**/
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RETURN_STATUS
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EFIAPI
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SafeUint8ToChar8 (
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IN UINT8 Operand,
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OUT CHAR8 *Result
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);
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/**
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INT16 -> INT8 conversion
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Converts the value specified by Operand to a value specified by Result type
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and stores the converted value into the caller allocated output buffer
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specified by Result. The caller must pass in a Result buffer that is at
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least as large as the Result type.
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If Result is NULL, RETURN_INVALID_PARAMETER is returned.
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If the conversion results in an overflow or an underflow condition, then
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Result is set to INT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
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@param[in] Operand Operand to be converted to new type
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@param[out] Result Pointer to the result of conversion
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@retval RETURN_SUCCESS Successful conversion
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@retval RETURN_BUFFER_TOO_SMALL Overflow
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@retval RETURN_INVALID_PARAMETER Result is NULL
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**/
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RETURN_STATUS
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EFIAPI
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SafeInt16ToInt8 (
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IN INT16 Operand,
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OUT INT8 *Result
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);
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/**
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INT16 -> CHAR8 conversion
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Converts the value specified by Operand to a value specified by Result type
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and stores the converted value into the caller allocated output buffer
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specified by Result. The caller must pass in a Result buffer that is at
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least as large as the Result type.
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If Result is NULL, RETURN_INVALID_PARAMETER is returned.
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If the conversion results in an overflow or an underflow condition, then
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Result is set to CHAR8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
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@param[in] Operand Operand to be converted to new type
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@param[out] Result Pointer to the result of conversion
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@retval RETURN_SUCCESS Successful conversion
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@retval RETURN_BUFFER_TOO_SMALL Overflow
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@retval RETURN_INVALID_PARAMETER Result is NULL
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**/
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RETURN_STATUS
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EFIAPI
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SafeInt16ToChar8 (
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IN INT16 Operand,
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OUT CHAR8 *Result
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);
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/**
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INT16 -> UINT8 conversion
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Converts the value specified by Operand to a value specified by Result type
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and stores the converted value into the caller allocated output buffer
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specified by Result. The caller must pass in a Result buffer that is at
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least as large as the Result type.
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If Result is NULL, RETURN_INVALID_PARAMETER is returned.
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If the conversion results in an overflow or an underflow condition, then
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Result is set to UINT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
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@param[in] Operand Operand to be converted to new type
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@param[out] Result Pointer to the result of conversion
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@retval RETURN_SUCCESS Successful conversion
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@retval RETURN_BUFFER_TOO_SMALL Overflow
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@retval RETURN_INVALID_PARAMETER Result is NULL
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**/
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RETURN_STATUS
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EFIAPI
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SafeInt16ToUint8 (
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IN INT16 Operand,
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OUT UINT8 *Result
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);
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/**
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INT16 -> UINT16 conversion
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Converts the value specified by Operand to a value specified by Result type
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and stores the converted value into the caller allocated output buffer
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specified by Result. The caller must pass in a Result buffer that is at
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least as large as the Result type.
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If Result is NULL, RETURN_INVALID_PARAMETER is returned.
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If the conversion results in an overflow or an underflow condition, then
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Result is set to UINT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
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@param[in] Operand Operand to be converted to new type
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@param[out] Result Pointer to the result of conversion
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@retval RETURN_SUCCESS Successful conversion
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@retval RETURN_BUFFER_TOO_SMALL Overflow
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@retval RETURN_INVALID_PARAMETER Result is NULL
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**/
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RETURN_STATUS
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EFIAPI
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|
SafeInt16ToUint16 (
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IN INT16 Operand,
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OUT UINT16 *Result
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);
|
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|
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/**
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INT16 -> UINT32 conversion
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|
|
|
Converts the value specified by Operand to a value specified by Result type
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and stores the converted value into the caller allocated output buffer
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|
specified by Result. The caller must pass in a Result buffer that is at
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|
least as large as the Result type.
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|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
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Result is set to UINT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
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|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
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@retval RETURN_SUCCESS Successful conversion
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|
@retval RETURN_BUFFER_TOO_SMALL Overflow
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|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt16ToUint32 (
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|
IN INT16 Operand,
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OUT UINT32 *Result
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);
|
|
|
|
/**
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|
INT16 -> UINTN conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt16ToUintn (
|
|
IN INT16 Operand,
|
|
OUT UINTN *Result
|
|
);
|
|
|
|
/**
|
|
INT16 -> UINT64 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT64_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt16ToUint64 (
|
|
IN INT16 Operand,
|
|
OUT UINT64 *Result
|
|
);
|
|
|
|
/**
|
|
UINT16 -> INT8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint16ToInt8 (
|
|
IN UINT16 Operand,
|
|
OUT INT8 *Result
|
|
);
|
|
|
|
/**
|
|
UINT16 -> CHAR8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to CHAR8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint16ToChar8 (
|
|
IN UINT16 Operand,
|
|
OUT CHAR8 *Result
|
|
);
|
|
|
|
/**
|
|
UINT16 -> UINT8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint16ToUint8 (
|
|
IN UINT16 Operand,
|
|
OUT UINT8 *Result
|
|
);
|
|
|
|
/**
|
|
UINT16 -> INT16 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint16ToInt16 (
|
|
IN UINT16 Operand,
|
|
OUT INT16 *Result
|
|
);
|
|
|
|
/**
|
|
INT32 -> INT8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt32ToInt8 (
|
|
IN INT32 Operand,
|
|
OUT INT8 *Result
|
|
);
|
|
|
|
/**
|
|
INT32 -> CHAR8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to CHAR8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt32ToChar8 (
|
|
IN INT32 Operand,
|
|
OUT CHAR8 *Result
|
|
);
|
|
|
|
/**
|
|
INT32 -> UINT8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt32ToUint8 (
|
|
IN INT32 Operand,
|
|
OUT UINT8 *Result
|
|
);
|
|
|
|
/**
|
|
INT32 -> INT16 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt32ToInt16 (
|
|
IN INT32 Operand,
|
|
OUT INT16 *Result
|
|
);
|
|
|
|
/**
|
|
INT32 -> UINT16 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt32ToUint16 (
|
|
IN INT32 Operand,
|
|
OUT UINT16 *Result
|
|
);
|
|
|
|
|
|
/**
|
|
INT32 -> UINT32 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt32ToUint32 (
|
|
IN INT32 Operand,
|
|
OUT UINT32 *Result
|
|
);
|
|
|
|
/**
|
|
INT32 -> UINTN conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt32ToUintn (
|
|
IN INT32 Operand,
|
|
OUT UINTN *Result
|
|
);
|
|
|
|
/**
|
|
INT32 -> UINT64 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT64_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt32ToUint64 (
|
|
IN INT32 Operand,
|
|
OUT UINT64 *Result
|
|
);
|
|
|
|
/**
|
|
UINT32 -> INT8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint32ToInt8 (
|
|
IN UINT32 Operand,
|
|
OUT INT8 *Result
|
|
);
|
|
|
|
/**
|
|
UINT32 -> CHAR8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to CHAR8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint32ToChar8 (
|
|
IN UINT32 Operand,
|
|
OUT CHAR8 *Result
|
|
);
|
|
|
|
/**
|
|
UINT32 -> UINT8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint32ToUint8 (
|
|
IN UINT32 Operand,
|
|
OUT UINT8 *Result
|
|
);
|
|
|
|
/**
|
|
UINT32 -> INT16 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint32ToInt16 (
|
|
IN UINT32 Operand,
|
|
OUT INT16 *Result
|
|
);
|
|
|
|
/**
|
|
UINT32 -> UINT16 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint32ToUint16 (
|
|
IN UINT32 Operand,
|
|
OUT UINT16 *Result
|
|
);
|
|
|
|
/**
|
|
UINT32 -> INT32 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint32ToInt32 (
|
|
IN UINT32 Operand,
|
|
OUT INT32 *Result
|
|
);
|
|
|
|
/**
|
|
UINT32 -> INTN conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint32ToIntn (
|
|
IN UINT32 Operand,
|
|
OUT INTN *Result
|
|
);
|
|
|
|
/**
|
|
INTN -> INT8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeIntnToInt8 (
|
|
IN INTN Operand,
|
|
OUT INT8 *Result
|
|
);
|
|
|
|
/**
|
|
INTN -> CHAR8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to CHAR8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeIntnToChar8 (
|
|
IN INTN Operand,
|
|
OUT CHAR8 *Result
|
|
);
|
|
|
|
/**
|
|
INTN -> UINT8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeIntnToUint8 (
|
|
IN INTN Operand,
|
|
OUT UINT8 *Result
|
|
);
|
|
|
|
/**
|
|
INTN -> INT16 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeIntnToInt16 (
|
|
IN INTN Operand,
|
|
OUT INT16 *Result
|
|
);
|
|
|
|
/**
|
|
INTN -> UINT16 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeIntnToUint16 (
|
|
IN INTN Operand,
|
|
OUT UINT16 *Result
|
|
);
|
|
|
|
/**
|
|
INTN -> INT32 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeIntnToInt32 (
|
|
IN INTN Operand,
|
|
OUT INT32 *Result
|
|
);
|
|
|
|
/**
|
|
INTN -> UINT32 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeIntnToUint32 (
|
|
IN INTN Operand,
|
|
OUT UINT32 *Result
|
|
);
|
|
|
|
/**
|
|
INTN -> UINTN conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeIntnToUintn (
|
|
IN INTN Operand,
|
|
OUT UINTN *Result
|
|
);
|
|
|
|
/**
|
|
INTN -> UINT64 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT64_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeIntnToUint64 (
|
|
IN INTN Operand,
|
|
OUT UINT64 *Result
|
|
);
|
|
|
|
/**
|
|
UINTN -> INT8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUintnToInt8 (
|
|
IN UINTN Operand,
|
|
OUT INT8 *Result
|
|
);
|
|
|
|
/**
|
|
UINTN -> CHAR8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to CHAR8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUintnToChar8 (
|
|
IN UINTN Operand,
|
|
OUT CHAR8 *Result
|
|
);
|
|
|
|
/**
|
|
UINTN -> UINT8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUintnToUint8 (
|
|
IN UINTN Operand,
|
|
OUT UINT8 *Result
|
|
);
|
|
|
|
/**
|
|
UINTN -> INT16 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUintnToInt16 (
|
|
IN UINTN Operand,
|
|
OUT INT16 *Result
|
|
);
|
|
|
|
/**
|
|
UINTN -> UINT16 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUintnToUint16 (
|
|
IN UINTN Operand,
|
|
OUT UINT16 *Result
|
|
);
|
|
|
|
/**
|
|
UINTN -> INT32 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUintnToInt32 (
|
|
IN UINTN Operand,
|
|
OUT INT32 *Result
|
|
);
|
|
|
|
/**
|
|
UINTN -> UINT32 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUintnToUint32 (
|
|
IN UINTN Operand,
|
|
OUT UINT32 *Result
|
|
);
|
|
|
|
/**
|
|
UINTN -> INTN conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUintnToIntn (
|
|
IN UINTN Operand,
|
|
OUT INTN *Result
|
|
);
|
|
|
|
/**
|
|
UINTN -> INT64 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT64_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUintnToInt64 (
|
|
IN UINTN Operand,
|
|
OUT INT64 *Result
|
|
);
|
|
|
|
/**
|
|
INT64 -> INT8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt64ToInt8 (
|
|
IN INT64 Operand,
|
|
OUT INT8 *Result
|
|
);
|
|
|
|
/**
|
|
INT64 -> CHAR8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to CHAR8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt64ToChar8 (
|
|
IN INT64 Operand,
|
|
OUT CHAR8 *Result
|
|
);
|
|
|
|
/**
|
|
INT64 -> UINT8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt64ToUint8 (
|
|
IN INT64 Operand,
|
|
OUT UINT8 *Result
|
|
);
|
|
|
|
/**
|
|
INT64 -> INT16 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt64ToInt16 (
|
|
IN INT64 Operand,
|
|
OUT INT16 *Result
|
|
);
|
|
|
|
/**
|
|
INT64 -> UINT16 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt64ToUint16 (
|
|
IN INT64 Operand,
|
|
OUT UINT16 *Result
|
|
);
|
|
|
|
/**
|
|
INT64 -> INT32 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt64ToInt32 (
|
|
IN INT64 Operand,
|
|
OUT INT32 *Result
|
|
);
|
|
|
|
/**
|
|
INT64 -> UINT32 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt64ToUint32 (
|
|
IN INT64 Operand,
|
|
OUT UINT32 *Result
|
|
);
|
|
|
|
/**
|
|
INT64 -> INTN conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt64ToIntn (
|
|
IN INT64 Operand,
|
|
OUT INTN *Result
|
|
);
|
|
|
|
/**
|
|
INT64 -> UINTN conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt64ToUintn (
|
|
IN INT64 Operand,
|
|
OUT UINTN *Result
|
|
);
|
|
|
|
/**
|
|
INT64 -> UINT64 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT64_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt64ToUint64 (
|
|
IN INT64 Operand,
|
|
OUT UINT64 *Result
|
|
);
|
|
|
|
/**
|
|
UINT64 -> INT8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint64ToInt8 (
|
|
IN UINT64 Operand,
|
|
OUT INT8 *Result
|
|
);
|
|
|
|
/**
|
|
UINT64 -> CHAR8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to CHAR8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint64ToChar8 (
|
|
IN UINT64 Operand,
|
|
OUT CHAR8 *Result
|
|
);
|
|
|
|
/**
|
|
UINT64 -> UINT8 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint64ToUint8 (
|
|
IN UINT64 Operand,
|
|
OUT UINT8 *Result
|
|
);
|
|
|
|
/**
|
|
UINT64 -> INT16 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint64ToInt16 (
|
|
IN UINT64 Operand,
|
|
OUT INT16 *Result
|
|
);
|
|
|
|
/**
|
|
UINT64 -> UINT16 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint64ToUint16 (
|
|
IN UINT64 Operand,
|
|
OUT UINT16 *Result
|
|
);
|
|
|
|
/**
|
|
UINT64 -> INT32 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint64ToInt32 (
|
|
IN UINT64 Operand,
|
|
OUT INT32 *Result
|
|
);
|
|
|
|
/**
|
|
UINT64 -> UINT32 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint64ToUint32 (
|
|
IN UINT64 Operand,
|
|
OUT UINT32 *Result
|
|
);
|
|
|
|
/**
|
|
UINT64 -> INTN conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint64ToIntn (
|
|
IN UINT64 Operand,
|
|
OUT INTN *Result
|
|
);
|
|
|
|
/**
|
|
UINT64 -> UINTN conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to UINTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint64ToUintn (
|
|
IN UINT64 Operand,
|
|
OUT UINTN *Result
|
|
);
|
|
|
|
/**
|
|
UINT64 -> INT64 conversion
|
|
|
|
Converts the value specified by Operand to a value specified by Result type
|
|
and stores the converted value into the caller allocated output buffer
|
|
specified by Result. The caller must pass in a Result buffer that is at
|
|
least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the conversion results in an overflow or an underflow condition, then
|
|
Result is set to INT64_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Operand Operand to be converted to new type
|
|
@param[out] Result Pointer to the result of conversion
|
|
|
|
@retval RETURN_SUCCESS Successful conversion
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint64ToInt64 (
|
|
IN UINT64 Operand,
|
|
OUT INT64 *Result
|
|
);
|
|
|
|
//
|
|
// Addition functions
|
|
//
|
|
|
|
/**
|
|
UINT8 addition
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to UINT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Augend A number to which addend will be added
|
|
@param[in] Addend A number to be added to another
|
|
@param[out] Result Pointer to the result of addition
|
|
|
|
@retval RETURN_SUCCESS Successful addition
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint8Add (
|
|
IN UINT8 Augend,
|
|
IN UINT8 Addend,
|
|
OUT UINT8 *Result
|
|
);
|
|
|
|
/**
|
|
UINT16 addition
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to UINT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Augend A number to which addend will be added
|
|
@param[in] Addend A number to be added to another
|
|
@param[out] Result Pointer to the result of addition
|
|
|
|
@retval RETURN_SUCCESS Successful addition
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint16Add (
|
|
IN UINT16 Augend,
|
|
IN UINT16 Addend,
|
|
OUT UINT16 *Result
|
|
);
|
|
|
|
/**
|
|
UINT32 addition
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to UINT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Augend A number to which addend will be added
|
|
@param[in] Addend A number to be added to another
|
|
@param[out] Result Pointer to the result of addition
|
|
|
|
@retval RETURN_SUCCESS Successful addition
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint32Add (
|
|
IN UINT32 Augend,
|
|
IN UINT32 Addend,
|
|
OUT UINT32 *Result
|
|
);
|
|
|
|
/**
|
|
UINTN addition
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to UINTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Augend A number to which addend will be added
|
|
@param[in] Addend A number to be added to another
|
|
@param[out] Result Pointer to the result of addition
|
|
|
|
@retval RETURN_SUCCESS Successful addition
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUintnAdd (
|
|
IN UINTN Augend,
|
|
IN UINTN Addend,
|
|
OUT UINTN *Result
|
|
);
|
|
|
|
/**
|
|
UINT64 addition
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to UINT64_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Augend A number to which addend will be added
|
|
@param[in] Addend A number to be added to another
|
|
@param[out] Result Pointer to the result of addition
|
|
|
|
@retval RETURN_SUCCESS Successful addition
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint64Add (
|
|
IN UINT64 Augend,
|
|
IN UINT64 Addend,
|
|
OUT UINT64 *Result
|
|
);
|
|
|
|
//
|
|
// Subtraction functions
|
|
//
|
|
|
|
/**
|
|
UINT8 subtraction
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to UINT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Minuend A number from which another is to be subtracted.
|
|
@param[in] Subtrahend A number to be subtracted from another
|
|
@param[out] Result Pointer to the result of subtraction
|
|
|
|
@retval RETURN_SUCCESS Successful subtraction
|
|
@retval RETURN_BUFFER_TOO_SMALL Underflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint8Sub (
|
|
IN UINT8 Minuend,
|
|
IN UINT8 Subtrahend,
|
|
OUT UINT8 *Result
|
|
);
|
|
|
|
/**
|
|
UINT16 subtraction
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to UINT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Minuend A number from which another is to be subtracted.
|
|
@param[in] Subtrahend A number to be subtracted from another
|
|
@param[out] Result Pointer to the result of subtraction
|
|
|
|
@retval RETURN_SUCCESS Successful subtraction
|
|
@retval RETURN_BUFFER_TOO_SMALL Underflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint16Sub (
|
|
IN UINT16 Minuend,
|
|
IN UINT16 Subtrahend,
|
|
OUT UINT16 *Result
|
|
);
|
|
|
|
/**
|
|
UINT32 subtraction
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to UINT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Minuend A number from which another is to be subtracted.
|
|
@param[in] Subtrahend A number to be subtracted from another
|
|
@param[out] Result Pointer to the result of subtraction
|
|
|
|
@retval RETURN_SUCCESS Successful subtraction
|
|
@retval RETURN_BUFFER_TOO_SMALL Underflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint32Sub (
|
|
IN UINT32 Minuend,
|
|
IN UINT32 Subtrahend,
|
|
OUT UINT32 *Result
|
|
);
|
|
|
|
/**
|
|
UINTN subtraction
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to UINTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Minuend A number from which another is to be subtracted.
|
|
@param[in] Subtrahend A number to be subtracted from another
|
|
@param[out] Result Pointer to the result of subtraction
|
|
|
|
@retval RETURN_SUCCESS Successful subtraction
|
|
@retval RETURN_BUFFER_TOO_SMALL Underflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUintnSub (
|
|
IN UINTN Minuend,
|
|
IN UINTN Subtrahend,
|
|
OUT UINTN *Result
|
|
);
|
|
|
|
/**
|
|
UINT64 subtraction
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to UINT64_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Minuend A number from which another is to be subtracted.
|
|
@param[in] Subtrahend A number to be subtracted from another
|
|
@param[out] Result Pointer to the result of subtraction
|
|
|
|
@retval RETURN_SUCCESS Successful subtraction
|
|
@retval RETURN_BUFFER_TOO_SMALL Underflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint64Sub (
|
|
IN UINT64 Minuend,
|
|
IN UINT64 Subtrahend,
|
|
OUT UINT64 *Result
|
|
);
|
|
|
|
//
|
|
// Multiplication functions
|
|
//
|
|
|
|
/**
|
|
UINT8 multiplication
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to UINT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Multiplicand A number that is to be multiplied by another
|
|
@param[in] Multiplier A number by which the multiplicand is to be multiplied
|
|
@param[out] Result Pointer to the result of multiplication
|
|
|
|
@retval RETURN_SUCCESS Successful multiplication
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint8Mult (
|
|
IN UINT8 Multiplicand,
|
|
IN UINT8 Multiplier,
|
|
OUT UINT8 *Result
|
|
);
|
|
|
|
/**
|
|
UINT16 multiplication
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to UINT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Multiplicand A number that is to be multiplied by another
|
|
@param[in] Multiplier A number by which the multiplicand is to be multiplied
|
|
@param[out] Result Pointer to the result of multiplication
|
|
|
|
@retval RETURN_SUCCESS Successful multiplication
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint16Mult (
|
|
IN UINT16 Multiplicand,
|
|
IN UINT16 Multiplier,
|
|
OUT UINT16 *Result
|
|
);
|
|
|
|
/**
|
|
UINT32 multiplication
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to UINT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Multiplicand A number that is to be multiplied by another
|
|
@param[in] Multiplier A number by which the multiplicand is to be multiplied
|
|
@param[out] Result Pointer to the result of multiplication
|
|
|
|
@retval RETURN_SUCCESS Successful multiplication
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint32Mult (
|
|
IN UINT32 Multiplicand,
|
|
IN UINT32 Multiplier,
|
|
OUT UINT32 *Result
|
|
);
|
|
|
|
/**
|
|
UINTN multiplication
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to UINTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Multiplicand A number that is to be multiplied by another
|
|
@param[in] Multiplier A number by which the multiplicand is to be multiplied
|
|
@param[out] Result Pointer to the result of multiplication
|
|
|
|
@retval RETURN_SUCCESS Successful multiplication
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUintnMult (
|
|
IN UINTN Multiplicand,
|
|
IN UINTN Multiplier,
|
|
OUT UINTN *Result
|
|
);
|
|
|
|
/**
|
|
UINT64 multiplication
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to UINT64_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Multiplicand A number that is to be multiplied by another
|
|
@param[in] Multiplier A number by which the multiplicand is to be multiplied
|
|
@param[out] Result Pointer to the result of multiplication
|
|
|
|
@retval RETURN_SUCCESS Successful multiplication
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeUint64Mult (
|
|
IN UINT64 Multiplicand,
|
|
IN UINT64 Multiplier,
|
|
OUT UINT64 *Result
|
|
);
|
|
|
|
//
|
|
// Signed operations
|
|
//
|
|
// Strongly consider using unsigned numbers.
|
|
//
|
|
// Signed numbers are often used where unsigned numbers should be used.
|
|
// For example file sizes and array indices should always be unsigned.
|
|
// Subtracting a larger positive signed number from a smaller positive
|
|
// signed number with SafeInt32Sub will succeed, producing a negative number,
|
|
// that then must not be used as an array index (but can occasionally be
|
|
// used as a pointer index.) Similarly for adding a larger magnitude
|
|
// negative number to a smaller magnitude positive number.
|
|
//
|
|
// This library does not protect you from such errors. It tells you if your
|
|
// integer operations overflowed, not if you are doing the right thing
|
|
// with your non-overflowed integers.
|
|
//
|
|
// Likewise you can overflow a buffer with a non-overflowed unsigned index.
|
|
//
|
|
|
|
//
|
|
// Signed addition functions
|
|
//
|
|
|
|
/**
|
|
INT8 Addition
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to INT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Augend A number to which addend will be added
|
|
@param[in] Addend A number to be added to another
|
|
@param[out] Result Pointer to the result of addition
|
|
|
|
@retval RETURN_SUCCESS Successful addition
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt8Add (
|
|
IN INT8 Augend,
|
|
IN INT8 Addend,
|
|
OUT INT8 *Result
|
|
);
|
|
|
|
/**
|
|
CHAR8 Addition
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to CHAR8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Augend A number to which addend will be added
|
|
@param[in] Addend A number to be added to another
|
|
@param[out] Result Pointer to the result of addition
|
|
|
|
@retval RETURN_SUCCESS Successful addition
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeChar8Add (
|
|
IN CHAR8 Augend,
|
|
IN CHAR8 Addend,
|
|
OUT CHAR8 *Result
|
|
);
|
|
|
|
/**
|
|
INT16 Addition
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to INT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Augend A number to which addend will be added
|
|
@param[in] Addend A number to be added to another
|
|
@param[out] Result Pointer to the result of addition
|
|
|
|
@retval RETURN_SUCCESS Successful addition
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt16Add (
|
|
IN INT16 Augend,
|
|
IN INT16 Addend,
|
|
OUT INT16 *Result
|
|
);
|
|
|
|
/**
|
|
INT32 Addition
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to INT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Augend A number to which addend will be added
|
|
@param[in] Addend A number to be added to another
|
|
@param[out] Result Pointer to the result of addition
|
|
|
|
@retval RETURN_SUCCESS Successful addition
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt32Add (
|
|
IN INT32 Augend,
|
|
IN INT32 Addend,
|
|
OUT INT32 *Result
|
|
);
|
|
|
|
/**
|
|
INTN Addition
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to INTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Augend A number to which addend will be added
|
|
@param[in] Addend A number to be added to another
|
|
@param[out] Result Pointer to the result of addition
|
|
|
|
@retval RETURN_SUCCESS Successful addition
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeIntnAdd (
|
|
IN INTN Augend,
|
|
IN INTN Addend,
|
|
OUT INTN *Result
|
|
);
|
|
|
|
/**
|
|
INT64 Addition
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to INT64_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Augend A number to which addend will be added
|
|
@param[in] Addend A number to be added to another
|
|
@param[out] Result Pointer to the result of addition
|
|
|
|
@retval RETURN_SUCCESS Successful addition
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt64Add (
|
|
IN INT64 Augend,
|
|
IN INT64 Addend,
|
|
OUT INT64 *Result
|
|
);
|
|
|
|
//
|
|
// Signed subtraction functions
|
|
//
|
|
|
|
/**
|
|
INT8 Subtraction
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to INT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Minuend A number from which another is to be subtracted.
|
|
@param[in] Subtrahend A number to be subtracted from another
|
|
@param[out] Result Pointer to the result of subtraction
|
|
|
|
@retval RETURN_SUCCESS Successful subtraction
|
|
@retval RETURN_BUFFER_TOO_SMALL Underflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt8Sub (
|
|
IN INT8 Minuend,
|
|
IN INT8 Subtrahend,
|
|
OUT INT8 *Result
|
|
);
|
|
|
|
/**
|
|
CHAR8 Subtraction
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to CHAR8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Minuend A number from which another is to be subtracted.
|
|
@param[in] Subtrahend A number to be subtracted from another
|
|
@param[out] Result Pointer to the result of subtraction
|
|
|
|
@retval RETURN_SUCCESS Successful subtraction
|
|
@retval RETURN_BUFFER_TOO_SMALL Underflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeChar8Sub (
|
|
IN CHAR8 Minuend,
|
|
IN CHAR8 Subtrahend,
|
|
OUT CHAR8 *Result
|
|
);
|
|
|
|
/**
|
|
INT16 Subtraction
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to INT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Minuend A number from which another is to be subtracted.
|
|
@param[in] Subtrahend A number to be subtracted from another
|
|
@param[out] Result Pointer to the result of subtraction
|
|
|
|
@retval RETURN_SUCCESS Successful subtraction
|
|
@retval RETURN_BUFFER_TOO_SMALL Underflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt16Sub (
|
|
IN INT16 Minuend,
|
|
IN INT16 Subtrahend,
|
|
OUT INT16 *Result
|
|
);
|
|
|
|
/**
|
|
INT32 Subtraction
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to INT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Minuend A number from which another is to be subtracted.
|
|
@param[in] Subtrahend A number to be subtracted from another
|
|
@param[out] Result Pointer to the result of subtraction
|
|
|
|
@retval RETURN_SUCCESS Successful subtraction
|
|
@retval RETURN_BUFFER_TOO_SMALL Underflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt32Sub (
|
|
IN INT32 Minuend,
|
|
IN INT32 Subtrahend,
|
|
OUT INT32 *Result
|
|
);
|
|
|
|
/**
|
|
INTN Subtraction
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to INTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Minuend A number from which another is to be subtracted.
|
|
@param[in] Subtrahend A number to be subtracted from another
|
|
@param[out] Result Pointer to the result of subtraction
|
|
|
|
@retval RETURN_SUCCESS Successful subtraction
|
|
@retval RETURN_BUFFER_TOO_SMALL Underflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeIntnSub (
|
|
IN INTN Minuend,
|
|
IN INTN Subtrahend,
|
|
OUT INTN *Result
|
|
);
|
|
|
|
/**
|
|
INT64 Subtraction
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to INT64_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Minuend A number from which another is to be subtracted.
|
|
@param[in] Subtrahend A number to be subtracted from another
|
|
@param[out] Result Pointer to the result of subtraction
|
|
|
|
@retval RETURN_SUCCESS Successful subtraction
|
|
@retval RETURN_BUFFER_TOO_SMALL Underflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt64Sub (
|
|
IN INT64 Minuend,
|
|
IN INT64 Subtrahend,
|
|
OUT INT64 *Result
|
|
);
|
|
|
|
//
|
|
// Signed multiplication functions
|
|
//
|
|
|
|
/**
|
|
INT8 multiplication
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to INT8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Multiplicand A number that is to be multiplied by another
|
|
@param[in] Multiplier A number by which the multiplicand is to be multiplied
|
|
@param[out] Result Pointer to the result of multiplication
|
|
|
|
@retval RETURN_SUCCESS Successful multiplication
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt8Mult (
|
|
IN INT8 Multiplicand,
|
|
IN INT8 Multiplier,
|
|
OUT INT8 *Result
|
|
);
|
|
|
|
/**
|
|
CHAR8 multiplication
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to CHAR8_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Multiplicand A number that is to be multiplied by another
|
|
@param[in] Multiplier A number by which the multiplicand is to be multiplied
|
|
@param[out] Result Pointer to the result of multiplication
|
|
|
|
@retval RETURN_SUCCESS Successful multiplication
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeChar8Mult (
|
|
IN CHAR8 Multiplicand,
|
|
IN CHAR8 Multiplier,
|
|
OUT CHAR8 *Result
|
|
);
|
|
|
|
/**
|
|
INT16 multiplication
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to INT16_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Multiplicand A number that is to be multiplied by another
|
|
@param[in] Multiplier A number by which the multiplicand is to be multiplied
|
|
@param[out] Result Pointer to the result of multiplication
|
|
|
|
@retval RETURN_SUCCESS Successful multiplication
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt16Mult (
|
|
IN INT16 Multiplicand,
|
|
IN INT16 Multiplier,
|
|
OUT INT16 *Result
|
|
);
|
|
|
|
/**
|
|
INT32 multiplication
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to INT32_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Multiplicand A number that is to be multiplied by another
|
|
@param[in] Multiplier A number by which the multiplicand is to be multiplied
|
|
@param[out] Result Pointer to the result of multiplication
|
|
|
|
@retval RETURN_SUCCESS Successful multiplication
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt32Mult (
|
|
IN INT32 Multiplicand,
|
|
IN INT32 Multiplier,
|
|
OUT INT32 *Result
|
|
);
|
|
|
|
/**
|
|
INTN multiplication
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to INTN_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Multiplicand A number that is to be multiplied by another
|
|
@param[in] Multiplier A number by which the multiplicand is to be multiplied
|
|
@param[out] Result Pointer to the result of multiplication
|
|
|
|
@retval RETURN_SUCCESS Successful multiplication
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeIntnMult (
|
|
IN INTN Multiplicand,
|
|
IN INTN Multiplier,
|
|
OUT INTN *Result
|
|
);
|
|
|
|
/**
|
|
INT64 multiplication
|
|
|
|
Performs the requested operation using the input parameters into a value
|
|
specified by Result type and stores the converted value into the caller
|
|
allocated output buffer specified by Result. The caller must pass in a
|
|
Result buffer that is at least as large as the Result type.
|
|
|
|
If Result is NULL, RETURN_INVALID_PARAMETER is returned.
|
|
|
|
If the requested operation results in an overflow or an underflow condition,
|
|
then Result is set to INT64_ERROR and RETURN_BUFFER_TOO_SMALL is returned.
|
|
|
|
@param[in] Multiplicand A number that is to be multiplied by another
|
|
@param[in] Multiplier A number by which the multiplicand is to be multiplied
|
|
@param[out] Result Pointer to the result of multiplication
|
|
|
|
@retval RETURN_SUCCESS Successful multiplication
|
|
@retval RETURN_BUFFER_TOO_SMALL Overflow
|
|
@retval RETURN_INVALID_PARAMETER Result is NULL
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
SafeInt64Mult (
|
|
IN INT64 Multiplicand,
|
|
IN INT64 Multiplier,
|
|
OUT INT64 *Result
|
|
);
|
|
|
|
#endif // __INT_SAFE_LIB_H__
|