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/*
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File: unquote.c
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Copyright (C) 2003 Andreas Gruenbacher <a.gruenbacher@bestbits.at>
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation; either version 2.1 of the License, or (at
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your option) any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include "misc.h"
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char *__acl_unquote(char *str)
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{
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unsigned char *s, *t;
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if (!str)
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return str;
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for (s = (unsigned char *)str; *s != '\0'; s++)
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if (*s == '\\')
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break;
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if (*s == '\0')
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return str;
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#define isoctal(c) \
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((c) >= '0' && (c) <= '7')
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t = s;
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do {
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if (*s == '\\' &&
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isoctal(*(s+1)) && isoctal(*(s+2)) && isoctal(*(s+3))) {
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*t++ = ((*(s+1) - '0') << 6) +
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((*(s+2) - '0') << 3) +
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((*(s+3) - '0') );
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s += 3;
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} else if (*s == '\\' && *(s+1) == '\\') {
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*t++ = *s++;
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} else
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*t++ = *s;
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} while (*s++ != '\0');
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return str;
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}
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