File: [local] / src / usr.bin / file / Attic / softmagic.c (download)
Revision 1.15, Tue Oct 27 23:59:38 2009 UTC (14 years, 7 months ago) by deraadt
Branch: MAIN
Changes since 1.14: +1 -5 lines
rcsid[] and sccsid[] and copyright[] are essentially unmaintained (and
unmaintainable). these days, people use source. these id's do not provide
any benefit, and do hurt the small install media
(the 33,000 line diff is essentially mechanical)
ok with the idea millert, ok dms
|
/* $OpenBSD: softmagic.c,v 1.15 2009/10/27 23:59:38 deraadt Exp $ */
/*
* Copyright (c) Ian F. Darwin 1986-1995.
* Software written by Ian F. Darwin and others;
* maintained 1995-present by Christos Zoulas and others.
*
* 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 immediately at the beginning of the file, without modification,
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
/*
* softmagic - interpret variable magic from MAGIC
*/
#include "file.h"
#include "magic.h"
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include <time.h>
private int match(struct magic_set *, struct magic *, uint32_t,
const unsigned char *, size_t, int);
private int mget(struct magic_set *, const unsigned char *,
struct magic *, size_t, unsigned int);
private int magiccheck(struct magic_set *, struct magic *);
private int32_t mprint(struct magic_set *, struct magic *);
private void mdebug(uint32_t, const char *, size_t);
private int mcopy(struct magic_set *, union VALUETYPE *, int, int,
const unsigned char *, uint32_t, size_t, size_t);
private int mconvert(struct magic_set *, struct magic *);
private int print_sep(struct magic_set *, int);
private void cvt_8(union VALUETYPE *, const struct magic *);
private void cvt_16(union VALUETYPE *, const struct magic *);
private void cvt_32(union VALUETYPE *, const struct magic *);
private void cvt_64(union VALUETYPE *, const struct magic *);
/*
* Macro to give description string according to whether we want plain
* text or MIME type
*/
#define MAGIC_DESC ((ms->flags & MAGIC_MIME) ? m->mimetype : m->desc)
/*
* softmagic - lookup one file in parsed, in-memory copy of database
* Passed the name and FILE * of one file to be typed.
*/
/*ARGSUSED1*/ /* nbytes passed for regularity, maybe need later */
protected int
file_softmagic(struct magic_set *ms, const unsigned char *buf, size_t nbytes, int mode)
{
struct mlist *ml;
int rv;
for (ml = ms->mlist->next; ml != ms->mlist; ml = ml->next)
if ((rv = match(ms, ml->magic, ml->nmagic, buf, nbytes, mode)) != 0)
return rv;
return 0;
}
/*
* Go through the whole list, stopping if you find a match. Process all
* the continuations of that match before returning.
*
* We support multi-level continuations:
*
* At any time when processing a successful top-level match, there is a
* current continuation level; it represents the level of the last
* successfully matched continuation.
*
* Continuations above that level are skipped as, if we see one, it
* means that the continuation that controls them - i.e, the
* lower-level continuation preceding them - failed to match.
*
* Continuations below that level are processed as, if we see one,
* it means we've finished processing or skipping higher-level
* continuations under the control of a successful or unsuccessful
* lower-level continuation, and are now seeing the next lower-level
* continuation and should process it. The current continuation
* level reverts to the level of the one we're seeing.
*
* Continuations at the current level are processed as, if we see
* one, there's no lower-level continuation that may have failed.
*
* If a continuation matches, we bump the current continuation level
* so that higher-level continuations are processed.
*/
private int
match(struct magic_set *ms, struct magic *magic, uint32_t nmagic,
const unsigned char *s, size_t nbytes, int mode)
{
uint32_t magindex = 0;
unsigned int cont_level = 0;
int need_separator = 0;
int returnval = 0; /* if a match is found it is set to 1*/
int firstline = 1; /* a flag to print X\n X\n- X */
int printed_something = 0;
if (file_check_mem(ms, cont_level) == -1)
return -1;
for (magindex = 0; magindex < nmagic; magindex++) {
int flush;
struct magic *m = &magic[magindex];
if ((m->flag & BINTEST) != mode) {
/* Skip sub-tests */
while (magic[magindex + 1].cont_level != 0 &&
++magindex < nmagic)
continue;
continue; /* Skip to next top-level test*/
}
ms->offset = m->offset;
ms->line = m->lineno;
/* if main entry matches, print it... */
flush = !mget(ms, s, m, nbytes, cont_level);
if (flush) {
if (m->reln == '!')
flush = 0;
} else {
switch (magiccheck(ms, m)) {
case -1:
return -1;
case 0:
flush++;
break;
default:
break;
}
}
if (flush) {
/*
* main entry didn't match,
* flush its continuations
*/
while (magindex < nmagic - 1 &&
magic[magindex + 1].cont_level != 0)
magindex++;
continue;
}
/*
* If we are going to print something, we'll need to print
* a blank before we print something else.
*/
if (*MAGIC_DESC) {
need_separator = 1;
printed_something = 1;
if (print_sep(ms, firstline) == -1)
return -1;
}
if ((ms->c.li[cont_level].off = mprint(ms, m)) == -1)
return -1;
/* and any continuations that match */
if (file_check_mem(ms, ++cont_level) == -1)
return -1;
while (magic[magindex+1].cont_level != 0 &&
++magindex < nmagic) {
m = &magic[magindex];
ms->line = m->lineno; /* for messages */
if (cont_level < m->cont_level)
continue;
if (cont_level > m->cont_level) {
/*
* We're at the end of the level
* "cont_level" continuations.
*/
cont_level = m->cont_level;
}
ms->offset = m->offset;
if (m->flag & OFFADD) {
ms->offset +=
ms->c.li[cont_level - 1].off;
}
#ifdef ENABLE_CONDITIONALS
if (m->cond == COND_ELSE ||
m->cond == COND_ELIF) {
if (ms->c.li[cont_level].last_match == 1)
continue;
}
#endif
flush = !mget(ms, s, m, nbytes, cont_level);
if (flush && m->reln != '!')
continue;
switch (flush ? 1 : magiccheck(ms, m)) {
case -1:
return -1;
case 0:
#ifdef ENABLE_CONDITIONALS
ms->c.li[cont_level].last_match = 0;
#endif
break;
default:
#ifdef ENABLE_CONDITIONALS
ms->c.li[cont_level].last_match = 1;
#endif
if (m->type != FILE_DEFAULT)
ms->c.li[cont_level].got_match = 1;
else if (ms->c.li[cont_level].got_match) {
ms->c.li[cont_level].got_match = 0;
break;
}
/*
* If we are going to print something,
* make sure that we have a separator first.
*/
if (*MAGIC_DESC) {
printed_something = 1;
if (print_sep(ms, firstline) == -1)
return -1;
}
/*
* This continuation matched. Print
* its message, with a blank before it
* if the previous item printed and
* this item isn't empty.
*/
/* space if previous printed */
if (need_separator
&& ((m->flag & NOSPACE) == 0)
&& *MAGIC_DESC) {
if (file_printf(ms, " ") == -1)
return -1;
need_separator = 0;
}
if ((ms->c.li[cont_level].off = mprint(ms, m)) == -1)
return -1;
if (*MAGIC_DESC)
need_separator = 1;
/*
* If we see any continuations
* at a higher level,
* process them.
*/
if (file_check_mem(ms, ++cont_level) == -1)
return -1;
break;
}
}
if (printed_something) {
firstline = 0;
returnval = 1;
}
if ((ms->flags & MAGIC_CONTINUE) == 0 && printed_something) {
return 1; /* don't keep searching */
}
}
return returnval; /* This is hit if -k is set or there is no match */
}
private int
check_fmt(struct magic_set *ms, struct magic *m)
{
regex_t rx;
int rc;
if (strchr(MAGIC_DESC, '%') == NULL)
return 0;
rc = regcomp(&rx, "%[-0-9\\.]*s", REG_EXTENDED|REG_NOSUB);
if (rc) {
char errmsg[512];
(void)regerror(rc, &rx, errmsg, sizeof(errmsg));
file_magerror(ms, "regex error %d, (%s)", rc, errmsg);
return -1;
} else {
rc = regexec(&rx, MAGIC_DESC, 0, 0, 0);
regfree(&rx);
return !rc;
}
}
#ifndef HAVE_STRNDUP
char * strndup(const char *, size_t);
char *
strndup(const char *str, size_t n)
{
size_t len;
char *copy;
len = strlen(str);
if (len > n)
len = n;
if (!(copy = malloc(len + 1)))
return (NULL);
(void) memcpy(copy, str, len + 1);
copy[len] = '\0';
return (copy);
}
#endif /* HAVE_STRNDUP */
private int32_t
mprint(struct magic_set *ms, struct magic *m)
{
uint64_t v;
float vf;
double vd;
int64_t t = 0;
char *buf;
union VALUETYPE *p = &ms->ms_value;
switch (m->type) {
case FILE_BYTE:
v = file_signextend(ms, m, (uint64_t)p->b);
switch (check_fmt(ms, m)) {
case -1:
return -1;
case 1:
if (asprintf(&buf, "%c", (unsigned char)v) < 0)
return -1;
if (file_printf(ms, MAGIC_DESC, buf) == -1)
return -1;
break;
default:
if (file_printf(ms, MAGIC_DESC, (unsigned char) v) == -1)
return -1;
break;
}
t = ms->offset + sizeof(char);
break;
case FILE_SHORT:
case FILE_BESHORT:
case FILE_LESHORT:
v = file_signextend(ms, m, (uint64_t)p->h);
switch (check_fmt(ms, m)) {
case -1:
return -1;
case 1:
if (asprintf(&buf, "%hu", (unsigned short)v) < 0)
return -1;
if (file_printf(ms, MAGIC_DESC, buf) == -1)
return -1;
break;
default:
if (file_printf(ms, MAGIC_DESC, (unsigned short) v) == -1)
return -1;
break;
}
t = ms->offset + sizeof(short);
break;
case FILE_LONG:
case FILE_BELONG:
case FILE_LELONG:
case FILE_MELONG:
v = file_signextend(ms, m, (uint64_t)p->l);
switch (check_fmt(ms, m)) {
case -1:
return -1;
case 1:
if (asprintf(&buf, "%u", (uint32_t)v) < 0)
return -1;
if (file_printf(ms, MAGIC_DESC, buf) == -1)
return -1;
break;
default:
if (file_printf(ms, MAGIC_DESC, (uint32_t) v) == -1)
return -1;
break;
}
t = ms->offset + sizeof(int32_t);
break;
case FILE_QUAD:
case FILE_BEQUAD:
case FILE_LEQUAD:
v = file_signextend(ms, m, p->q);
if (file_printf(ms, MAGIC_DESC, (uint64_t) v) == -1)
return -1;
t = ms->offset + sizeof(int64_t);
break;
case FILE_STRING:
case FILE_PSTRING:
case FILE_BESTRING16:
case FILE_LESTRING16:
if (m->reln == '=' || m->reln == '!') {
if (file_printf(ms, MAGIC_DESC, m->value.s) == -1)
return -1;
t = ms->offset + m->vallen;
}
else {
if (*m->value.s == '\0')
p->s[strcspn(p->s, "\n")] = '\0';
if (file_printf(ms, MAGIC_DESC, p->s) == -1)
return -1;
t = ms->offset + strlen(p->s);
if (m->type == FILE_PSTRING)
t++;
}
break;
case FILE_DATE:
case FILE_BEDATE:
case FILE_LEDATE:
case FILE_MEDATE:
if (file_printf(ms, MAGIC_DESC, file_fmttime(p->l, 1)) == -1)
return -1;
t = ms->offset + sizeof(time_t);
break;
case FILE_LDATE:
case FILE_BELDATE:
case FILE_LELDATE:
case FILE_MELDATE:
if (file_printf(ms, MAGIC_DESC, file_fmttime(p->l, 0)) == -1)
return -1;
t = ms->offset + sizeof(time_t);
break;
case FILE_QDATE:
case FILE_BEQDATE:
case FILE_LEQDATE:
if (file_printf(ms, MAGIC_DESC, file_fmttime((uint32_t)p->q, 1))
== -1)
return -1;
t = ms->offset + sizeof(uint64_t);
break;
case FILE_QLDATE:
case FILE_BEQLDATE:
case FILE_LEQLDATE:
if (file_printf(ms, MAGIC_DESC, file_fmttime((uint32_t)p->q, 0))
== -1)
return -1;
t = ms->offset + sizeof(uint64_t);
break;
case FILE_FLOAT:
case FILE_BEFLOAT:
case FILE_LEFLOAT:
vf = p->f;
switch (check_fmt(ms, m)) {
case -1:
return -1;
case 1:
if (asprintf(&buf, "%g", vf) < 0)
return -1;
if (file_printf(ms, MAGIC_DESC, buf) == -1)
return -1;
break;
default:
if (file_printf(ms, MAGIC_DESC, vf) == -1)
return -1;
break;
}
t = ms->offset + sizeof(float);
break;
case FILE_DOUBLE:
case FILE_BEDOUBLE:
case FILE_LEDOUBLE:
vd = p->d;
switch (check_fmt(ms, m)) {
case -1:
return -1;
case 1:
if (asprintf(&buf, "%g", vd) < 0)
return -1;
if (file_printf(ms, MAGIC_DESC, buf) == -1)
return -1;
break;
default:
if (file_printf(ms, MAGIC_DESC, vd) == -1)
return -1;
break;
}
t = ms->offset + sizeof(double);
break;
case FILE_REGEX: {
char *cp;
int rval;
cp = strndup((const char *)ms->search.s, ms->search.rm_len);
if (cp == NULL) {
file_oomem(ms, ms->search.rm_len);
return -1;
}
rval = file_printf(ms, MAGIC_DESC, cp);
free(cp);
if (rval == -1)
return -1;
if ((m->str_flags & REGEX_OFFSET_START))
t = ms->search.offset;
else
t = ms->search.offset + ms->search.rm_len;
break;
}
case FILE_SEARCH:
if (file_printf(ms, MAGIC_DESC, m->value.s) == -1)
return -1;
if ((m->str_flags & REGEX_OFFSET_START))
t = ms->search.offset;
else
t = ms->search.offset + m->vallen;
break;
case FILE_DEFAULT:
if (file_printf(ms, MAGIC_DESC, m->value.s) == -1)
return -1;
t = ms->offset;
break;
default:
file_magerror(ms, "invalid m->type (%d) in mprint()", m->type);
return -1;
}
return(t);
}
#define DO_CVT(fld, cast) \
if (m->num_mask) \
switch (m->mask_op & FILE_OPS_MASK) { \
case FILE_OPAND: \
p->fld &= cast m->num_mask; \
break; \
case FILE_OPOR: \
p->fld |= cast m->num_mask; \
break; \
case FILE_OPXOR: \
p->fld ^= cast m->num_mask; \
break; \
case FILE_OPADD: \
p->fld += cast m->num_mask; \
break; \
case FILE_OPMINUS: \
p->fld -= cast m->num_mask; \
break; \
case FILE_OPMULTIPLY: \
p->fld *= cast m->num_mask; \
break; \
case FILE_OPDIVIDE: \
p->fld /= cast m->num_mask; \
break; \
case FILE_OPMODULO: \
p->fld %= cast m->num_mask; \
break; \
} \
if (m->mask_op & FILE_OPINVERSE) \
p->fld = ~p->fld \
private void
cvt_8(union VALUETYPE *p, const struct magic *m)
{
DO_CVT(b, (uint8_t));
}
private void
cvt_16(union VALUETYPE *p, const struct magic *m)
{
DO_CVT(h, (uint16_t));
}
private void
cvt_32(union VALUETYPE *p, const struct magic *m)
{
DO_CVT(l, (uint32_t));
}
private void
cvt_64(union VALUETYPE *p, const struct magic *m)
{
DO_CVT(q, (uint64_t));
}
#define DO_CVT2(fld, cast) \
if (m->num_mask) \
switch (m->mask_op & FILE_OPS_MASK) { \
case FILE_OPADD: \
p->fld += cast m->num_mask; \
break; \
case FILE_OPMINUS: \
p->fld -= cast m->num_mask; \
break; \
case FILE_OPMULTIPLY: \
p->fld *= cast m->num_mask; \
break; \
case FILE_OPDIVIDE: \
p->fld /= cast m->num_mask; \
break; \
} \
private void
cvt_float(union VALUETYPE *p, const struct magic *m)
{
DO_CVT2(f, (float));
}
private void
cvt_double(union VALUETYPE *p, const struct magic *m)
{
DO_CVT2(d, (double));
}
/*
* Convert the byte order of the data we are looking at
* While we're here, let's apply the mask operation
* (unless you have a better idea)
*/
private int
mconvert(struct magic_set *ms, struct magic *m)
{
union VALUETYPE *p = &ms->ms_value;
switch (m->type) {
case FILE_BYTE:
cvt_8(p, m);
return 1;
case FILE_SHORT:
cvt_16(p, m);
return 1;
case FILE_LONG:
case FILE_DATE:
case FILE_LDATE:
cvt_32(p, m);
return 1;
case FILE_QUAD:
case FILE_QDATE:
case FILE_QLDATE:
cvt_64(p, m);
return 1;
case FILE_STRING:
case FILE_BESTRING16:
case FILE_LESTRING16: {
size_t len;
/* Null terminate and eat *trailing* return */
p->s[sizeof(p->s) - 1] = '\0';
len = strlen(p->s);
if (len-- && p->s[len] == '\n')
p->s[len] = '\0';
return 1;
}
case FILE_PSTRING: {
char *ptr1 = p->s, *ptr2 = ptr1 + 1;
size_t len = *p->s;
if (len >= sizeof(p->s))
len = sizeof(p->s) - 1;
while (len--)
*ptr1++ = *ptr2++;
*ptr1 = '\0';
len = strlen(p->s);
if (len-- && p->s[len] == '\n')
p->s[len] = '\0';
return 1;
}
case FILE_BESHORT:
p->h = (short)((p->hs[0]<<8)|(p->hs[1]));
cvt_16(p, m);
return 1;
case FILE_BELONG:
case FILE_BEDATE:
case FILE_BELDATE:
p->l = (int32_t)
((p->hl[0]<<24)|(p->hl[1]<<16)|(p->hl[2]<<8)|(p->hl[3]));
cvt_32(p, m);
return 1;
case FILE_BEQUAD:
case FILE_BEQDATE:
case FILE_BEQLDATE:
p->q = (uint64_t)
(((uint64_t)p->hq[0]<<56)|((uint64_t)p->hq[1]<<48)|
((uint64_t)p->hq[2]<<40)|((uint64_t)p->hq[3]<<32)|
((uint64_t)p->hq[4]<<24)|((uint64_t)p->hq[5]<<16)|
((uint64_t)p->hq[6]<<8)|((uint64_t)p->hq[7]));
cvt_64(p, m);
return 1;
case FILE_LESHORT:
p->h = (short)((p->hs[1]<<8)|(p->hs[0]));
cvt_16(p, m);
return 1;
case FILE_LELONG:
case FILE_LEDATE:
case FILE_LELDATE:
p->l = (int32_t)
((p->hl[3]<<24)|(p->hl[2]<<16)|(p->hl[1]<<8)|(p->hl[0]));
cvt_32(p, m);
return 1;
case FILE_LEQUAD:
case FILE_LEQDATE:
case FILE_LEQLDATE:
p->q = (uint64_t)
(((uint64_t)p->hq[7]<<56)|((uint64_t)p->hq[6]<<48)|
((uint64_t)p->hq[5]<<40)|((uint64_t)p->hq[4]<<32)|
((uint64_t)p->hq[3]<<24)|((uint64_t)p->hq[2]<<16)|
((uint64_t)p->hq[1]<<8)|((uint64_t)p->hq[0]));
cvt_64(p, m);
return 1;
case FILE_MELONG:
case FILE_MEDATE:
case FILE_MELDATE:
p->l = (int32_t)
((p->hl[1]<<24)|(p->hl[0]<<16)|(p->hl[3]<<8)|(p->hl[2]));
cvt_32(p, m);
return 1;
case FILE_FLOAT:
cvt_float(p, m);
return 1;
case FILE_BEFLOAT:
p->l = ((uint32_t)p->hl[0]<<24)|((uint32_t)p->hl[1]<<16)|
((uint32_t)p->hl[2]<<8) |((uint32_t)p->hl[3]);
cvt_float(p, m);
return 1;
case FILE_LEFLOAT:
p->l = ((uint32_t)p->hl[3]<<24)|((uint32_t)p->hl[2]<<16)|
((uint32_t)p->hl[1]<<8) |((uint32_t)p->hl[0]);
cvt_float(p, m);
return 1;
case FILE_DOUBLE:
cvt_double(p, m);
return 1;
case FILE_BEDOUBLE:
p->q = ((uint64_t)p->hq[0]<<56)|((uint64_t)p->hq[1]<<48)|
((uint64_t)p->hq[2]<<40)|((uint64_t)p->hq[3]<<32)|
((uint64_t)p->hq[4]<<24)|((uint64_t)p->hq[5]<<16)|
((uint64_t)p->hq[6]<<8) |((uint64_t)p->hq[7]);
cvt_double(p, m);
return 1;
case FILE_LEDOUBLE:
p->q = ((uint64_t)p->hq[7]<<56)|((uint64_t)p->hq[6]<<48)|
((uint64_t)p->hq[5]<<40)|((uint64_t)p->hq[4]<<32)|
((uint64_t)p->hq[3]<<24)|((uint64_t)p->hq[2]<<16)|
((uint64_t)p->hq[1]<<8) |((uint64_t)p->hq[0]);
cvt_double(p, m);
return 1;
case FILE_REGEX:
case FILE_SEARCH:
case FILE_DEFAULT:
return 1;
default:
file_magerror(ms, "invalid type %d in mconvert()", m->type);
return 0;
}
}
private void
mdebug(uint32_t offset, const char *str, size_t len)
{
(void) fprintf(stderr, "mget @%d: ", offset);
file_showstr(stderr, str, len);
(void) fputc('\n', stderr);
(void) fputc('\n', stderr);
}
private int
mcopy(struct magic_set *ms, union VALUETYPE *p, int type, int indir,
const unsigned char *s, uint32_t offset, size_t nbytes, size_t linecnt)
{
/*
* Note: FILE_SEARCH and FILE_REGEX do not actually copy
* anything, but setup pointers into the source
*/
if (indir == 0) {
switch (type) {
case FILE_SEARCH:
ms->search.s = (const char *)s + offset;
ms->search.s_len = nbytes - offset;
ms->search.offset = offset;
return 0;
case FILE_REGEX: {
const char *b;
const char *c;
const char *last; /* end of search region */
const char *buf; /* start of search region */
size_t lines;
if (s == NULL) {
ms->search.s_len = 0;
ms->search.s = NULL;
return 0;
}
buf = (const char *)s + offset;
last = (const char *)s + nbytes;
/* mget() guarantees buf <= last */
for (lines = linecnt, b = buf;
lines && ((b = strchr(c = b, '\n')) || (b = strchr(c, '\r')));
lines--, b++) {
last = b;
if (b[0] == '\r' && b[1] == '\n')
b++;
}
if (lines)
last = (const char *)s + nbytes;
ms->search.s = buf;
ms->search.s_len = last - buf;
ms->search.offset = offset;
ms->search.rm_len = 0;
return 0;
}
case FILE_BESTRING16:
case FILE_LESTRING16: {
const unsigned char *src = s + offset;
const unsigned char *esrc = s + nbytes;
char *dst = p->s;
char *edst = &p->s[sizeof(p->s) - 1];
if (type == FILE_BESTRING16)
src++;
/* check for pointer overflow */
if (src < s) {
file_magerror(ms, "invalid offset %zu in mcopy()",
offset);
return -1;
}
for (/*EMPTY*/; src < esrc; src += 2, dst++) {
if (dst < edst)
*dst = *src;
else
break;
if (*dst == '\0') {
if (type == FILE_BESTRING16 ?
*(src - 1) != '\0' :
*(src + 1) != '\0')
*dst = ' ';
}
}
*edst = '\0';
return 0;
}
case FILE_STRING: /* XXX - these two should not need */
case FILE_PSTRING: /* to copy anything, but do anyway. */
default:
break;
}
}
if (offset >= nbytes) {
(void)memset(p, '\0', sizeof(*p));
return 0;
}
if (nbytes - offset < sizeof(*p))
nbytes = nbytes - offset;
else
nbytes = sizeof(*p);
(void)memcpy(p, s + offset, nbytes);
/*
* the usefulness of padding with zeroes eludes me, it
* might even cause problems
*/
if (nbytes < sizeof(*p))
(void)memset(((char *)(void *)p) + nbytes, '\0',
sizeof(*p) - nbytes);
return 0;
}
private int
mget(struct magic_set *ms, const unsigned char *s,
struct magic *m, size_t nbytes, unsigned int cont_level)
{
uint32_t offset = ms->offset;
uint32_t count = m->str_range;
union VALUETYPE *p = &ms->ms_value;
if (mcopy(ms, p, m->type, m->flag & INDIR, s, offset, nbytes, count) == -1)
return -1;
if ((ms->flags & MAGIC_DEBUG) != 0) {
mdebug(offset, (char *)(void *)p, sizeof(union VALUETYPE));
file_mdump(m);
}
if (m->flag & INDIR) {
int off = m->in_offset;
if (m->in_op & FILE_OPINDIRECT) {
const union VALUETYPE *q =
((const void *)(s + offset + off));
switch (m->in_type) {
case FILE_BYTE:
off = q->b;
break;
case FILE_SHORT:
off = q->h;
break;
case FILE_BESHORT:
off = (short)((q->hs[0]<<8)|(q->hs[1]));
break;
case FILE_LESHORT:
off = (short)((q->hs[1]<<8)|(q->hs[0]));
break;
case FILE_LONG:
off = q->l;
break;
case FILE_BELONG:
off = (int32_t)((q->hl[0]<<24)|(q->hl[1]<<16)|
(q->hl[2]<<8)|(q->hl[3]));
break;
case FILE_LELONG:
off = (int32_t)((q->hl[3]<<24)|(q->hl[2]<<16)|
(q->hl[1]<<8)|(q->hl[0]));
break;
case FILE_MELONG:
off = (int32_t)((q->hl[1]<<24)|(q->hl[0]<<16)|
(q->hl[3]<<8)|(q->hl[2]));
break;
}
}
switch (m->in_type) {
case FILE_BYTE:
if (nbytes < (offset + 1))
return 0;
if (off) {
switch (m->in_op & FILE_OPS_MASK) {
case FILE_OPAND:
offset = p->b & off;
break;
case FILE_OPOR:
offset = p->b | off;
break;
case FILE_OPXOR:
offset = p->b ^ off;
break;
case FILE_OPADD:
offset = p->b + off;
break;
case FILE_OPMINUS:
offset = p->b - off;
break;
case FILE_OPMULTIPLY:
offset = p->b * off;
break;
case FILE_OPDIVIDE:
offset = p->b / off;
break;
case FILE_OPMODULO:
offset = p->b % off;
break;
}
} else
offset = p->b;
if (m->in_op & FILE_OPINVERSE)
offset = ~offset;
break;
case FILE_BESHORT:
if (nbytes < (offset + 2))
return 0;
if (off) {
switch (m->in_op & FILE_OPS_MASK) {
case FILE_OPAND:
offset = (short)((p->hs[0]<<8)|
(p->hs[1])) &
off;
break;
case FILE_OPOR:
offset = (short)((p->hs[0]<<8)|
(p->hs[1])) |
off;
break;
case FILE_OPXOR:
offset = (short)((p->hs[0]<<8)|
(p->hs[1])) ^
off;
break;
case FILE_OPADD:
offset = (short)((p->hs[0]<<8)|
(p->hs[1])) +
off;
break;
case FILE_OPMINUS:
offset = (short)((p->hs[0]<<8)|
(p->hs[1])) -
off;
break;
case FILE_OPMULTIPLY:
offset = (short)((p->hs[0]<<8)|
(p->hs[1])) *
off;
break;
case FILE_OPDIVIDE:
offset = (short)((p->hs[0]<<8)|
(p->hs[1])) /
off;
break;
case FILE_OPMODULO:
offset = (short)((p->hs[0]<<8)|
(p->hs[1])) %
off;
break;
}
} else
offset = (short)((p->hs[0]<<8)|
(p->hs[1]));
if (m->in_op & FILE_OPINVERSE)
offset = ~offset;
break;
case FILE_LESHORT:
if (nbytes < (offset + 2))
return 0;
if (off) {
switch (m->in_op & FILE_OPS_MASK) {
case FILE_OPAND:
offset = (short)((p->hs[1]<<8)|
(p->hs[0])) &
off;
break;
case FILE_OPOR:
offset = (short)((p->hs[1]<<8)|
(p->hs[0])) |
off;
break;
case FILE_OPXOR:
offset = (short)((p->hs[1]<<8)|
(p->hs[0])) ^
off;
break;
case FILE_OPADD:
offset = (short)((p->hs[1]<<8)|
(p->hs[0])) +
off;
break;
case FILE_OPMINUS:
offset = (short)((p->hs[1]<<8)|
(p->hs[0])) -
off;
break;
case FILE_OPMULTIPLY:
offset = (short)((p->hs[1]<<8)|
(p->hs[0])) *
off;
break;
case FILE_OPDIVIDE:
offset = (short)((p->hs[1]<<8)|
(p->hs[0])) /
off;
break;
case FILE_OPMODULO:
offset = (short)((p->hs[1]<<8)|
(p->hs[0])) %
off;
break;
}
} else
offset = (short)((p->hs[1]<<8)|
(p->hs[0]));
if (m->in_op & FILE_OPINVERSE)
offset = ~offset;
break;
case FILE_SHORT:
if (nbytes < (offset + 2))
return 0;
if (off) {
switch (m->in_op & FILE_OPS_MASK) {
case FILE_OPAND:
offset = p->h & off;
break;
case FILE_OPOR:
offset = p->h | off;
break;
case FILE_OPXOR:
offset = p->h ^ off;
break;
case FILE_OPADD:
offset = p->h + off;
break;
case FILE_OPMINUS:
offset = p->h - off;
break;
case FILE_OPMULTIPLY:
offset = p->h * off;
break;
case FILE_OPDIVIDE:
offset = p->h / off;
break;
case FILE_OPMODULO:
offset = p->h % off;
break;
}
}
else
offset = p->h;
if (m->in_op & FILE_OPINVERSE)
offset = ~offset;
break;
case FILE_BELONG:
if (nbytes < (offset + 4))
return 0;
if (off) {
switch (m->in_op & FILE_OPS_MASK) {
case FILE_OPAND:
offset = (int32_t)((p->hl[0]<<24)|
(p->hl[1]<<16)|
(p->hl[2]<<8)|
(p->hl[3])) &
off;
break;
case FILE_OPOR:
offset = (int32_t)((p->hl[0]<<24)|
(p->hl[1]<<16)|
(p->hl[2]<<8)|
(p->hl[3])) |
off;
break;
case FILE_OPXOR:
offset = (int32_t)((p->hl[0]<<24)|
(p->hl[1]<<16)|
(p->hl[2]<<8)|
(p->hl[3])) ^
off;
break;
case FILE_OPADD:
offset = (int32_t)((p->hl[0]<<24)|
(p->hl[1]<<16)|
(p->hl[2]<<8)|
(p->hl[3])) +
off;
break;
case FILE_OPMINUS:
offset = (int32_t)((p->hl[0]<<24)|
(p->hl[1]<<16)|
(p->hl[2]<<8)|
(p->hl[3])) -
off;
break;
case FILE_OPMULTIPLY:
offset = (int32_t)((p->hl[0]<<24)|
(p->hl[1]<<16)|
(p->hl[2]<<8)|
(p->hl[3])) *
off;
break;
case FILE_OPDIVIDE:
offset = (int32_t)((p->hl[0]<<24)|
(p->hl[1]<<16)|
(p->hl[2]<<8)|
(p->hl[3])) /
off;
break;
case FILE_OPMODULO:
offset = (int32_t)((p->hl[0]<<24)|
(p->hl[1]<<16)|
(p->hl[2]<<8)|
(p->hl[3])) %
off;
break;
}
} else
offset = (int32_t)((p->hl[0]<<24)|
(p->hl[1]<<16)|
(p->hl[2]<<8)|
(p->hl[3]));
if (m->in_op & FILE_OPINVERSE)
offset = ~offset;
break;
case FILE_LELONG:
if (nbytes < (offset + 4))
return 0;
if (off) {
switch (m->in_op & FILE_OPS_MASK) {
case FILE_OPAND:
offset = (int32_t)((p->hl[3]<<24)|
(p->hl[2]<<16)|
(p->hl[1]<<8)|
(p->hl[0])) &
off;
break;
case FILE_OPOR:
offset = (int32_t)((p->hl[3]<<24)|
(p->hl[2]<<16)|
(p->hl[1]<<8)|
(p->hl[0])) |
off;
break;
case FILE_OPXOR:
offset = (int32_t)((p->hl[3]<<24)|
(p->hl[2]<<16)|
(p->hl[1]<<8)|
(p->hl[0])) ^
off;
break;
case FILE_OPADD:
offset = (int32_t)((p->hl[3]<<24)|
(p->hl[2]<<16)|
(p->hl[1]<<8)|
(p->hl[0])) +
off;
break;
case FILE_OPMINUS:
offset = (int32_t)((p->hl[3]<<24)|
(p->hl[2]<<16)|
(p->hl[1]<<8)|
(p->hl[0])) -
off;
break;
case FILE_OPMULTIPLY:
offset = (int32_t)((p->hl[3]<<24)|
(p->hl[2]<<16)|
(p->hl[1]<<8)|
(p->hl[0])) *
off;
break;
case FILE_OPDIVIDE:
offset = (int32_t)((p->hl[3]<<24)|
(p->hl[2]<<16)|
(p->hl[1]<<8)|
(p->hl[0])) /
off;
break;
case FILE_OPMODULO:
offset = (int32_t)((p->hl[3]<<24)|
(p->hl[2]<<16)|
(p->hl[1]<<8)|
(p->hl[0])) %
off;
break;
}
} else
offset = (int32_t)((p->hl[3]<<24)|
(p->hl[2]<<16)|
(p->hl[1]<<8)|
(p->hl[0]));
if (m->in_op & FILE_OPINVERSE)
offset = ~offset;
break;
case FILE_MELONG:
if (nbytes < (offset + 4))
return 0;
if (off) {
switch (m->in_op & FILE_OPS_MASK) {
case FILE_OPAND:
offset = (int32_t)((p->hl[1]<<24)|
(p->hl[0]<<16)|
(p->hl[3]<<8)|
(p->hl[2])) &
off;
break;
case FILE_OPOR:
offset = (int32_t)((p->hl[1]<<24)|
(p->hl[0]<<16)|
(p->hl[3]<<8)|
(p->hl[2])) |
off;
break;
case FILE_OPXOR:
offset = (int32_t)((p->hl[1]<<24)|
(p->hl[0]<<16)|
(p->hl[3]<<8)|
(p->hl[2])) ^
off;
break;
case FILE_OPADD:
offset = (int32_t)((p->hl[1]<<24)|
(p->hl[0]<<16)|
(p->hl[3]<<8)|
(p->hl[2])) +
off;
break;
case FILE_OPMINUS:
offset = (int32_t)((p->hl[1]<<24)|
(p->hl[0]<<16)|
(p->hl[3]<<8)|
(p->hl[2])) -
off;
break;
case FILE_OPMULTIPLY:
offset = (int32_t)((p->hl[1]<<24)|
(p->hl[0]<<16)|
(p->hl[3]<<8)|
(p->hl[2])) *
off;
break;
case FILE_OPDIVIDE:
offset = (int32_t)((p->hl[1]<<24)|
(p->hl[0]<<16)|
(p->hl[3]<<8)|
(p->hl[2])) /
off;
break;
case FILE_OPMODULO:
offset = (int32_t)((p->hl[1]<<24)|
(p->hl[0]<<16)|
(p->hl[3]<<8)|
(p->hl[2])) %
off;
break;
}
} else
offset = (int32_t)((p->hl[1]<<24)|
(p->hl[0]<<16)|
(p->hl[3]<<8)|
(p->hl[2]));
if (m->in_op & FILE_OPINVERSE)
offset = ~offset;
break;
case FILE_LONG:
if (nbytes < (offset + 4))
return 0;
if (off) {
switch (m->in_op & FILE_OPS_MASK) {
case FILE_OPAND:
offset = p->l & off;
break;
case FILE_OPOR:
offset = p->l | off;
break;
case FILE_OPXOR:
offset = p->l ^ off;
break;
case FILE_OPADD:
offset = p->l + off;
break;
case FILE_OPMINUS:
offset = p->l - off;
break;
case FILE_OPMULTIPLY:
offset = p->l * off;
break;
case FILE_OPDIVIDE:
offset = p->l / off;
break;
case FILE_OPMODULO:
offset = p->l % off;
break;
}
} else
offset = p->l;
if (m->in_op & FILE_OPINVERSE)
offset = ~offset;
break;
}
if (m->flag & INDIROFFADD)
offset += ms->c.li[cont_level-1].off;
if (mcopy(ms, p, m->type, 0, s, offset, nbytes, count) == -1)
return -1;
ms->offset = offset;
if ((ms->flags & MAGIC_DEBUG) != 0) {
mdebug(offset, (char *)(void *)p,
sizeof(union VALUETYPE));
file_mdump(m);
}
}
/* Verify we have enough data to match magic type */
switch (m->type) {
case FILE_BYTE:
if (nbytes < (offset + 1)) /* should alway be true */
return 0;
break;
case FILE_SHORT:
case FILE_BESHORT:
case FILE_LESHORT:
if (nbytes < (offset + 2))
return 0;
break;
case FILE_LONG:
case FILE_BELONG:
case FILE_LELONG:
case FILE_MELONG:
case FILE_DATE:
case FILE_BEDATE:
case FILE_LEDATE:
case FILE_MEDATE:
case FILE_LDATE:
case FILE_BELDATE:
case FILE_LELDATE:
case FILE_MELDATE:
case FILE_FLOAT:
case FILE_BEFLOAT:
case FILE_LEFLOAT:
if (nbytes < (offset + 4))
return 0;
break;
case FILE_DOUBLE:
case FILE_BEDOUBLE:
case FILE_LEDOUBLE:
if (nbytes < (offset + 8))
return 0;
break;
case FILE_STRING:
case FILE_PSTRING:
case FILE_SEARCH:
if (nbytes < (offset + m->vallen))
return 0;
break;
case FILE_REGEX:
if (nbytes < offset)
return 0;
break;
case FILE_DEFAULT: /* nothing to check */
default:
break;
}
if (!mconvert(ms, m))
return 0;
return 1;
}
private uint64_t
file_strncmp(const char *s1, const char *s2, size_t len, uint32_t flags)
{
/*
* Convert the source args to unsigned here so that (1) the
* compare will be unsigned as it is in strncmp() and (2) so
* the ctype functions will work correctly without extra
* casting.
*/
const unsigned char *a = (const unsigned char *)s1;
const unsigned char *b = (const unsigned char *)s2;
uint64_t v;
/*
* What we want here is v = strncmp(s1, s2, len),
* but ignoring any nulls.
*/
v = 0;
if (0L == flags) { /* normal string: do it fast */
while (len-- > 0)
if ((v = *b++ - *a++) != '\0')
break;
}
else { /* combine the others */
while (len-- > 0) {
if ((flags & STRING_IGNORE_LOWERCASE) &&
islower(*a)) {
if ((v = tolower(*b++) - *a++) != '\0')
break;
}
else if ((flags & STRING_IGNORE_UPPERCASE) &&
isupper(*a)) {
if ((v = toupper(*b++) - *a++) != '\0')
break;
}
else if ((flags & STRING_COMPACT_BLANK) &&
isspace(*a)) {
a++;
if (isspace(*b++)) {
while (isspace(*b))
b++;
}
else {
v = 1;
break;
}
}
else if ((flags & STRING_COMPACT_OPTIONAL_BLANK) &&
isspace(*a)) {
a++;
while (isspace(*b))
b++;
}
else {
if ((v = *b++ - *a++) != '\0')
break;
}
}
}
return v;
}
private uint64_t
file_strncmp16(const char *a, const char *b, size_t len, uint32_t flags)
{
/*
* XXX - The 16-bit string compare probably needs to be done
* differently, especially if the flags are to be supported.
* At the moment, I am unsure.
*/
flags = 0;
return file_strncmp(a, b, len, flags);
}
private int
magiccheck(struct magic_set *ms, struct magic *m)
{
uint64_t l = m->value.q;
uint64_t v;
float fl, fv;
double dl, dv;
int matched;
union VALUETYPE *p = &ms->ms_value;
switch (m->type) {
case FILE_BYTE:
v = p->b;
break;
case FILE_SHORT:
case FILE_BESHORT:
case FILE_LESHORT:
v = p->h;
break;
case FILE_LONG:
case FILE_BELONG:
case FILE_LELONG:
case FILE_MELONG:
case FILE_DATE:
case FILE_BEDATE:
case FILE_LEDATE:
case FILE_MEDATE:
case FILE_LDATE:
case FILE_BELDATE:
case FILE_LELDATE:
case FILE_MELDATE:
v = p->l;
break;
case FILE_QUAD:
case FILE_LEQUAD:
case FILE_BEQUAD:
case FILE_QDATE:
case FILE_BEQDATE:
case FILE_LEQDATE:
case FILE_QLDATE:
case FILE_BEQLDATE:
case FILE_LEQLDATE:
v = p->q;
break;
case FILE_FLOAT:
case FILE_BEFLOAT:
case FILE_LEFLOAT:
fl = m->value.f;
fv = p->f;
switch (m->reln) {
case 'x':
matched = 1;
break;
case '!':
matched = fv != fl;
break;
case '=':
matched = fv == fl;
break;
case '>':
matched = fv > fl;
break;
case '<':
matched = fv < fl;
break;
default:
matched = 0;
file_magerror(ms, "cannot happen with float: invalid relation `%c'", m->reln);
return -1;
}
return matched;
case FILE_DOUBLE:
case FILE_BEDOUBLE:
case FILE_LEDOUBLE:
dl = m->value.d;
dv = p->d;
switch (m->reln) {
case 'x':
matched = 1;
break;
case '!':
matched = dv != dl;
break;
case '=':
matched = dv == dl;
break;
case '>':
matched = dv > dl;
break;
case '<':
matched = dv < dl;
break;
default:
matched = 0;
file_magerror(ms, "cannot happen with double: invalid relation `%c'", m->reln);
return -1;
}
return matched;
case FILE_DEFAULT:
l = 0;
v = 0;
break;
case FILE_STRING:
case FILE_PSTRING:
l = 0;
v = file_strncmp(m->value.s, p->s, (size_t)m->vallen, m->str_flags);
break;
case FILE_BESTRING16:
case FILE_LESTRING16:
l = 0;
v = file_strncmp16(m->value.s, p->s, (size_t)m->vallen, m->str_flags);
break;
case FILE_SEARCH: { /* search ms->search.s for the string m->value.s */
size_t slen;
size_t idx;
if (ms->search.s == NULL)
return 0;
slen = MIN(m->vallen, sizeof(m->value.s));
l = 0;
v = 0;
for (idx = 0; m->str_range == 0 || idx < m->str_range; idx++) {
if (slen + idx > ms->search.s_len)
break;
v = file_strncmp(m->value.s, ms->search.s + idx, slen, m->str_flags);
if (v == 0) { /* found match */
ms->search.offset += idx;
break;
}
}
break;
}
case FILE_REGEX: {
int rc;
regex_t rx;
char errmsg[512];
if (ms->search.s == NULL)
return 0;
l = 0;
rc = regcomp(&rx, m->value.s,
REG_EXTENDED|REG_NEWLINE|
((m->str_flags & STRING_IGNORE_CASE) ? REG_ICASE : 0));
if (rc) {
(void)regerror(rc, &rx, errmsg, sizeof(errmsg));
file_magerror(ms, "regex error %d, (%s)",
rc, errmsg);
v = (uint64_t)-1;
}
else {
regmatch_t pmatch[1];
#ifndef REG_STARTEND
#define REG_STARTEND 0
size_t l = ms->search.s_len - 1;
char c = ms->search.s[l];
((char *)(intptr_t)ms->search.s)[l] = '\0';
#else
pmatch[0].rm_so = 0;
pmatch[0].rm_eo = ms->search.s_len;
#endif
rc = regexec(&rx, (const char *)ms->search.s,
1, pmatch, REG_STARTEND);
#if REG_STARTEND == 0
((char *)(intptr_t)ms->search.s)[l] = c;
#endif
switch (rc) {
case 0:
ms->search.s += (int)pmatch[0].rm_so;
ms->search.offset += (size_t)pmatch[0].rm_so;
ms->search.rm_len =
(size_t)(pmatch[0].rm_eo - pmatch[0].rm_so);
v = 0;
break;
case REG_NOMATCH:
v = 1;
break;
default:
(void)regerror(rc, &rx, errmsg, sizeof(errmsg));
file_magerror(ms, "regexec error %d, (%s)",
rc, errmsg);
v = (uint64_t)-1;
break;
}
regfree(&rx);
}
if (v == (uint64_t)-1)
return -1;
break;
}
default:
file_magerror(ms, "invalid type %d in magiccheck()", m->type);
return -1;
}
v = file_signextend(ms, m, v);
switch (m->reln) {
case 'x':
if ((ms->flags & MAGIC_DEBUG) != 0)
(void) fprintf(stderr, "%llu == *any* = 1\n",
(unsigned long long)v);
matched = 1;
break;
case '!':
matched = v != l;
if ((ms->flags & MAGIC_DEBUG) != 0)
(void) fprintf(stderr, "%llu != %llu = %d\n",
(unsigned long long)v, (unsigned long long)l,
matched);
break;
case '=':
matched = v == l;
if ((ms->flags & MAGIC_DEBUG) != 0)
(void) fprintf(stderr, "%llu == %llu = %d\n",
(unsigned long long)v, (unsigned long long)l,
matched);
break;
case '>':
if (m->flag & UNSIGNED) {
matched = v > l;
if ((ms->flags & MAGIC_DEBUG) != 0)
(void) fprintf(stderr, "%llu > %llu = %d\n",
(unsigned long long)v,
(unsigned long long)l, matched);
}
else {
matched = (int64_t) v > (int64_t) l;
if ((ms->flags & MAGIC_DEBUG) != 0)
(void) fprintf(stderr, "%lld > %lld = %d\n",
(long long)v, (long long)l, matched);
}
break;
case '<':
if (m->flag & UNSIGNED) {
matched = v < l;
if ((ms->flags & MAGIC_DEBUG) != 0)
(void) fprintf(stderr, "%llu < %llu = %d\n",
(unsigned long long)v,
(unsigned long long)l, matched);
}
else {
matched = (int64_t) v < (int64_t) l;
if ((ms->flags & MAGIC_DEBUG) != 0)
(void) fprintf(stderr, "%lld < %lld = %d\n",
(long long)v, (long long)l, matched);
}
break;
case '&':
matched = (v & l) == l;
if ((ms->flags & MAGIC_DEBUG) != 0)
(void) fprintf(stderr, "((%llx & %llx) == %llx) = %d\n",
(unsigned long long)v, (unsigned long long)l,
(unsigned long long)l, matched);
break;
case '^':
matched = (v & l) != l;
if ((ms->flags & MAGIC_DEBUG) != 0)
(void) fprintf(stderr, "((%llx & %llx) != %llx) = %d\n",
(unsigned long long)v, (unsigned long long)l,
(unsigned long long)l, matched);
break;
default:
matched = 0;
file_magerror(ms, "cannot happen: invalid relation `%c'",
m->reln);
return -1;
}
return matched;
}
private int
print_sep(struct magic_set *ms, int firstline)
{
if (firstline)
return 0;
/*
* we found another match
* put a newline and '-' to do some simple formatting
*/
return file_printf(ms, "\n- ");
}
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