freebsd-skq/lib/libutil/stat_flags.c

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/*-
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
#if 0
static char sccsid[] = "@(#)stat_flags.c 8.1 (Berkeley) 5/31/93";
#else
static const char rcsid[] =
"$Id: stat_flags.c,v 1.7 1997/08/07 15:33:49 steve Exp $";
#endif
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#endif /* not lint */
#include <sys/types.h>
#include <sys/stat.h>
#include <stddef.h>
#include <string.h>
#define SAPPEND(s) { \
if (prefix != NULL) \
(void)strcat(string, prefix); \
(void)strcat(string, s); \
prefix = ","; \
}
/*
* flags_to_string --
* Convert stat flags to a comma-separated string. If no flags
* are set, return the default string.
*/
char *
flags_to_string(flags, def)
u_long flags;
char *def;
{
static char string[128];
char *prefix;
string[0] = '\0';
prefix = NULL;
if (flags & UF_APPEND)
SAPPEND("uappnd");
if (flags & UF_IMMUTABLE)
SAPPEND("uchg");
if (flags & UF_NOUNLINK)
SAPPEND("uunlnk");
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if (flags & UF_NODUMP)
SAPPEND("nodump");
if (flags & UF_OPAQUE)
SAPPEND("opaque");
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if (flags & SF_APPEND)
SAPPEND("sappnd");
if (flags & SF_ARCHIVED)
SAPPEND("arch");
if (flags & SF_IMMUTABLE)
SAPPEND("schg");
if (flags & SF_NOUNLINK)
SAPPEND("sunlnk");
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return (prefix == NULL && def != NULL ? def : string);
}
#define TEST(a, b, f) { \
if (!memcmp(a, b, sizeof(b))) { \
if (clear) { \
if (clrp) \
*clrp |= (f); \
} else if (setp) \
*setp |= (f); \
break; \
} \
}
/*
* string_to_flags --
* Take string of arguments and return stat flags. Return 0 on
* success, 1 on failure. On failure, stringp is set to point
* to the offending token.
*/
int
string_to_flags(stringp, setp, clrp)
char **stringp;
u_long *setp, *clrp;
{
int clear;
char *string, *p;
clear = 0;
if (setp)
*setp = 0;
if (clrp)
*clrp = 0;
string = *stringp;
while ((p = strsep(&string, "\t ,")) != NULL) {
*stringp = p;
if (*p == '\0')
continue;
if (p[0] == 'n' && p[1] == 'o') {
clear = 1;
p += 2;
}
switch (p[0]) {
case 'a':
TEST(p, "arch", SF_ARCHIVED);
TEST(p, "archived", SF_ARCHIVED);
return (1);
case 'd':
clear = !clear;
TEST(p, "dump", UF_NODUMP);
return (1);
case 'o':
TEST(p, "opaque", UF_OPAQUE);
return (1);
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case 's':
TEST(p, "sappnd", SF_APPEND);
TEST(p, "sappend", SF_APPEND);
TEST(p, "schg", SF_IMMUTABLE);
TEST(p, "schange", SF_IMMUTABLE);
TEST(p, "simmutable", SF_IMMUTABLE);
TEST(p, "sunlnk", SF_NOUNLINK);
TEST(p, "sunlink", SF_NOUNLINK);
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return (1);
case 'u':
TEST(p, "uappnd", UF_APPEND);
TEST(p, "uappend", UF_APPEND);
TEST(p, "uchg", UF_IMMUTABLE);
TEST(p, "uchange", UF_IMMUTABLE);
TEST(p, "uimmutable", UF_IMMUTABLE);
TEST(p, "uunlnk", UF_NOUNLINK);
TEST(p, "uunlink", UF_NOUNLINK);
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/* FALLTHROUGH */
default:
return (1);
}
}
return (0);
}