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acl.c
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acl.c
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/* acl.c -- routines for access control lists
*
* (C) Copyright 1993 by Carnegie Mellon University
*
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of CMU not be
* used in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission.
*
* CMU DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
* CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
* ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*
* Author: Chris Newman
* Start Date: 6/28/93
*/
#include <stdio.h>
#include "acl.h"
/* convert a string to an acl bit vector
*/
long acl_strtomask(str)
char *str;
{
long result = 0;
while (*str) {
switch (*str++) {
case 'l': result |= ACL_LOOKUP; break;
case 'r': result |= ACL_READ; break;
case 's': result |= ACL_SEEN; break;
case 'w': result |= ACL_WRITE; break;
case 'i': result |= ACL_INSERT; break;
case 'p': result |= ACL_POST; break;
case 'c': result |= ACL_CREATE; break;
case 'd': result |= ACL_DELETE; break;
case 'a': result |= ACL_ADMIN; break;
case '0': result |= ACL_USER0; break;
case '1': result |= ACL_USER1; break;
case '2': result |= ACL_USER2; break;
case '3': result |= ACL_USER3; break;
case '4': result |= ACL_USER4; break;
case '5': result |= ACL_USER5; break;
case '6': result |= ACL_USER6; break;
case '7': result |= ACL_USER7; break;
case '8': result |= ACL_USER8; break;
case '9': result |= ACL_USER9; break;
}
}
return (result);
}
/* convert an acl bit vector to a string
*/
char *acl_masktostr(acl, str)
long acl;
char *str;
{
char *pos = str;
if (acl & ACL_LOOKUP) *pos++ = 'l';
if (acl & ACL_READ) *pos++ = 'r';
if (acl & ACL_SEEN) *pos++ = 's';
if (acl & ACL_WRITE) *pos++ = 'w';
if (acl & ACL_INSERT) *pos++ = 'i';
if (acl & ACL_POST) *pos++ = 'p';
if (acl & ACL_CREATE) *pos++ = 'c';
if (acl & ACL_DELETE) *pos++ = 'd';
if (acl & ACL_ADMIN) *pos++ = 'a';
if (acl & ACL_USER0) *pos++ = '0';
if (acl & ACL_USER1) *pos++ = '1';
if (acl & ACL_USER2) *pos++ = '2';
if (acl & ACL_USER3) *pos++ = '3';
if (acl & ACL_USER4) *pos++ = '4';
if (acl & ACL_USER5) *pos++ = '5';
if (acl & ACL_USER6) *pos++ = '6';
if (acl & ACL_USER7) *pos++ = '7';
if (acl & ACL_USER8) *pos++ = '8';
if (acl & ACL_USER9) *pos++ = '9';
*pos = '\0';
return (str);
}

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