timevmstounix.c

#include "timevmstounix.h"

//============================================================================
// Copyright (c) 2008 HoffmanLabs LLC
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
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// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
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// Except as contained in this notice, the name(s) of the above
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// to promote the sale, use or other dealings in this Software
// without prior written authorization.
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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//
void timevmstounix( int64_t *vmstimein, time_t *epochout )
{
    // Convert VMS Time to C UNIX format

    int64_t timevalue = *vmstimein;

    timevalue -= UINT64_C(0x07c95674beb4000);
    timevalue /= 10000000;
    *epochout = (time_t) timevalue;
}