fis-gtm/sr_unix/cvtprot.c

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/****************************************************************
* *
* Copyright 2001 Sanchez Computer Associates, Inc. *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
#include "mdef.h"
#include "cvtprot.h"
#define READ 4
#define WRITE 2
#define EXECUTE 1
int cvtprot(char *cp, short cnt)
{
int mask;
/* a protection mask consists of 3 bits per access, R(ead), W(rite), and X(excute)
*/
mask = 0;
for (;cnt > 0 ; cnt--, cp++)
{
switch (*cp)
{
case 'R':
case 'r':
mask |= READ;
break;
case 'W':
case 'w':
mask |= WRITE;
break;
case 'X':
case 'x':
mask |= EXECUTE;
break;
default:
return -1;
}
}
return mask;
}