44 lines
853 B
C
44 lines
853 B
C
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/*
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* usuals.h - Typedefs and #defines used widely.
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*/
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#ifndef USUALS_H
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#define USUALS_H
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#include <limits.h>
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#if UCHAR_MAX == 0xff
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typedef unsigned char byte;
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typedef signed char int8;
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#else
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#error This machine has no 8-bit type
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#endif
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#if UINT_MAX == 0xffffu
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typedef unsigned word16;
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typedef int int16;
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#elif USHRT_MAX == 0xffffu
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typedef unsigned short word16;
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typedef short int16;
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#else
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#error This machine has no 16-bit type
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#endif
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#if UINT_MAX == 0xffffffffu
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typedef unsigned int word32;
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typedef int int32;
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#elif ULONG_MAX == 0xffffffffu
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typedef unsigned long word32;
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typedef long int32;
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#else
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#error This machine has no 32-bit type
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#endif
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#include <string.h> /* Prototype for memset */
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/*
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* Wipe sensitive data.
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* Note that this takes a structure, not a pointer to one!
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*/
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#define wipe(x) memset(x, 0, sizeof(*(x)))
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#endif /* USUALS_H */
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