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a0f8076d19
busybox/libbb/dump.c
Denys Vlasenko a0f8076d19 hexdump: fix error message 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-17 23:23:26 +02:00

870 lines
21 KiB
C
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/* vi: set sw=4 ts=4: */
/*
* Support code for the hexdump and od applets,
* based on code from util-linux v 2.11l
*
* Copyright (c) 1989
* The Regents of the University of California. All rights reserved.
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*
* Original copyright notice is retained at the end of this file.
*/
#include "libbb.h"
#include "dump.h"
#define F_IGNORE 0x01 /* %_A */
#define F_SETREP 0x02 /* rep count set, not default */
#define F_ADDRESS 0x001 /* print offset */
#define F_BPAD 0x002 /* blank pad */
#define F_C 0x004 /* %_c */
#define F_CHAR 0x008 /* %c */
#define F_DBL 0x010 /* %[EefGf] */
#define F_INT 0x020 /* %[di] */
#define F_P 0x040 /* %_p */
#define F_STR 0x080 /* %s */
#define F_U 0x100 /* %_u */
#define F_UINT 0x200 /* %[ouXx] */
#define F_TEXT 0x400 /* no conversions */
typedef struct priv_dumper_t {
dumper_t pub;
char **argv;
FU *endfu;
off_t savaddress; /* saved address/offset in stream */
off_t eaddress; /* end address */
off_t address; /* address/offset in stream */
int blocksize;
smallint exitval; /* final exit value */
/* former statics */
smallint next__done;
smallint get__ateof; // = 1;
unsigned char *get__curp;
unsigned char *get__savp;
} priv_dumper_t;
static const char dot_flags_width_chars[] ALIGN1 = ".#-+ 0123456789";
static const char size_conv_str[] ALIGN1 =
"\x1\x4\x4\x4\x4\x4\x4\x8\x8\x8\x8\010cdiouxXeEfgG";
static const char int_convs[] ALIGN1 = "diouxX";
dumper_t* FAST_FUNC alloc_dumper(void)
{
priv_dumper_t *dumper = xzalloc(sizeof(*dumper));
dumper->pub.dump_length = -1;
dumper->pub.dump_vflag = FIRST;
dumper->get__ateof = 1;
return &dumper->pub;
}
static NOINLINE int bb_dump_size(FS *fs)
{
FU *fu;
int bcnt, cur_size;
char *fmt;
const char *p;
int prec;
/* figure out the data block size needed for each format unit */
for (cur_size = 0, fu = fs->nextfu; fu; fu = fu->nextfu) {
if (fu->bcnt) {
cur_size += fu->bcnt * fu->reps;
continue;
}
for (bcnt = prec = 0, fmt = fu->fmt; *fmt; ++fmt) {
if (*fmt != '%')
continue;
/*
* skip any special chars -- save precision in
* case it's a %s format.
*/
while (strchr(dot_flags_width_chars + 1, *++fmt))
continue;
if (*fmt == '.' && isdigit(*++fmt)) {
prec = atoi(fmt);
while (isdigit(*++fmt))
continue;
}
p = strchr(size_conv_str + 12, *fmt);
if (!p) {
if (*fmt == 's') {
bcnt += prec;
}
if (*fmt == '_') {
++fmt;
if ((*fmt == 'c') || (*fmt == 'p') || (*fmt == 'u')) {
bcnt += 1;
}
}
} else {
bcnt += p[-12];
}
}
cur_size += bcnt * fu->reps;
}
return cur_size;
}
static NOINLINE void rewrite(priv_dumper_t *dumper, FS *fs)
{
FU *fu;
for (fu = fs->nextfu; fu; fu = fu->nextfu) {
PR *pr;
char *p1, *p2, *p3;
char *fmtp;
int nconv = 0;
/*
* break each format unit into print units; each
* conversion character gets its own.
*/
for (fmtp = fu->fmt; *fmtp; ) {
unsigned len;
const char *prec;
const char *byte_count_str;
/* DBU:[dvae@cray.com] zalloc so that forward ptrs start out NULL */
pr = xzalloc(sizeof(*pr));
if (!fu->nextpr)
fu->nextpr = pr;
/* skip preceding text and up to the next % sign */
p1 = strchr(fmtp, '%');
if (!p1) { /* only text in the string */
pr->fmt = fmtp;
pr->flags = F_TEXT;
break;
}
/*
* get precision for %s -- if have a byte count, don't
* need it.
*/
prec = NULL;
if (fu->bcnt) {
/* skip to conversion character */
while (strchr(dot_flags_width_chars, *++p1))
continue;
} else {
/* skip any special chars, field width */
while (strchr(dot_flags_width_chars + 1, *++p1))
continue;
if (*p1 == '.' && isdigit(*++p1)) {
prec = p1;
while (isdigit(*++p1))
continue;
}
}
p2 = p1 + 1; /* set end pointer */
/*
* figure out the byte count for each conversion;
* rewrite the format as necessary, set up blank-
* padding for end of data.
*/
if (*p1 == 'c') {
pr->flags = F_CHAR;
DO_BYTE_COUNT_1:
byte_count_str = "\001";
DO_BYTE_COUNT:
if (fu->bcnt) {
for (;;) {
if (fu->bcnt == *byte_count_str)
break;
if (*++byte_count_str == 0)
bb_error_msg_and_die("bad byte count for conversion character %s", p1);
}
}
/* Unlike the original, output the remainder of the format string. */
pr->bcnt = *byte_count_str;
} else
if (*p1 == 'l') { /* %ld etc */
const char *e;
++p2;
++p1;
DO_INT_CONV:
e = strchr(int_convs, *p1); /* "diouxX"? */
if (!e)
goto DO_BAD_CONV_CHAR;
pr->flags = F_INT;
if (e > int_convs + 1) /* not d or i? */
pr->flags = F_UINT;
byte_count_str = "\004\002\001";
goto DO_BYTE_COUNT;
} else
if (strchr(int_convs, *p1)) { /* %d etc */
goto DO_INT_CONV;
} else
if (strchr("eEfgG", *p1)) { /* floating point */
pr->flags = F_DBL;
byte_count_str = "\010\004";
goto DO_BYTE_COUNT;
} else
if (*p1 == 's') {
pr->flags = F_STR;
pr->bcnt = fu->bcnt;
if (fu->bcnt == 0) {
if (!prec)
bb_simple_error_msg_and_die("%s needs precision or byte count");
pr->bcnt = atoi(prec);
}
} else
if (*p1 == '_') {
p2++; /* move past a in "%_a" */
switch (p1[1]) {
case 'A': /* %_A[dox]: print address and the end */
dumper->endfu = fu;
fu->flags |= F_IGNORE;
/* FALLTHROUGH */
case 'a': /* %_a[dox]: current address */
pr->flags = F_ADDRESS;
p2++; /* move past x in "%_ax" */
if ((p1[2] != 'd') && (p1[2] != 'o') && (p1[2] != 'x')) {
goto DO_BAD_CONV_CHAR;
}
*p1 = p1[2];
break;
case 'c': /* %_c: chars, \ooo, \n \r \t etc */
pr->flags = F_C;
/* *p1 = 'c'; set in conv_c */
goto DO_BYTE_COUNT_1;
case 'p': /* %_p: chars, dots for nonprintable */
pr->flags = F_P;
*p1 = 'c';
goto DO_BYTE_COUNT_1;
case 'u': /* %_p: chars, 'nul', 'esc' etc for nonprintable */
pr->flags = F_U;
/* *p1 = 'c'; set in conv_u */
goto DO_BYTE_COUNT_1;
default:
goto DO_BAD_CONV_CHAR;
}
} else {
DO_BAD_CONV_CHAR:
bb_error_msg_and_die("bad conversion character %%%s", p1);
}
/*
* copy to PR format string, set conversion character
* pointer, update original.
*/
len = (p1 - fmtp) + 1;
pr->fmt = xstrndup(fmtp, len);
/* DBU:[dave@cray.com] w/o this, trailing fmt text, space is lost.
* Skip subsequent text and up to the next % sign and tack the
* additional text onto fmt: eg. if fmt is "%x is a HEX number",
* we lose the " is a HEX number" part of fmt.
*/
for (p3 = p2; *p3 && *p3 != '%'; p3++)
continue;
if ((p3 - p2) != 0) {
char *d;
pr->fmt = d = xrealloc(pr->fmt, len + (p3 - p2) + 1);
d += len;
do {
*d++ = *p2++;
} while (p2 != p3);
*d = '\0';
/* now p2 = p3 */
}
pr->cchar = pr->fmt + len - 1; /* must be after realloc! */
fmtp = p2;
/* only one conversion character if byte count */
if (!(pr->flags & F_ADDRESS) && fu->bcnt && nconv++) {
bb_simple_error_msg_and_die("byte count with multiple conversion characters");
}
}
/*
* if format unit byte count not specified, figure it out
* so can adjust rep count later.
*/
if (fu->bcnt == 0)
for (pr = fu->nextpr; pr; pr = pr->nextpr)
fu->bcnt += pr->bcnt;
}
/*
* if the format string interprets any data at all, and it's
* not the same as the blocksize, and its last format unit
* interprets any data at all, and has no iteration count,
* repeat it as necessary.
*
* if rep count is greater than 1, no trailing whitespace
* gets output from the last iteration of the format unit:
* 2/1 "%02x " prints "XX XX", not "XX XX "
* 2/1 "%02x\n" prints "XX\nXX", not "XX\nXX\n"
*/
for (fu = fs->nextfu; fu; fu = fu->nextfu) {
if (!fu->nextfu
&& fs->bcnt < dumper->blocksize
&& !(fu->flags & F_SETREP)
&& fu->bcnt
) {
fu->reps += (dumper->blocksize - fs->bcnt) / fu->bcnt;
}
if (fu->reps > 1 && fu->nextpr) {
PR *pr;
char *p1, *p2;
for (pr = fu->nextpr;; pr = pr->nextpr)
if (!pr->nextpr)
break;
p2 = NULL;
for (p1 = pr->fmt; *p1; ++p1)
p2 = isspace(*p1) ? p1 : NULL;
if (p2)
pr->nospace = p2;
}
}
}
static void do_skip(priv_dumper_t *dumper, const char *fname)
{
struct stat sbuf;
xfstat(STDIN_FILENO, &sbuf, fname);
if (S_ISREG(sbuf.st_mode)
&& dumper->pub.dump_skip >= sbuf.st_size
) {
/* If st_size is valid and pub.dump_skip >= st_size */
dumper->pub.dump_skip -= sbuf.st_size;
dumper->address += sbuf.st_size;
return;
}
if (fseeko(stdin, dumper->pub.dump_skip, SEEK_SET)) {
bb_simple_perror_msg_and_die(fname);
}
dumper->address += dumper->pub.dump_skip;
dumper->savaddress = dumper->address;
dumper->pub.dump_skip = 0;
}
static NOINLINE int next(priv_dumper_t *dumper)
{
for (;;) {
const char *fname = *dumper->argv;
if (fname) {
dumper->argv++;
if (NOT_LONE_DASH(fname)) {
if (!freopen(fname, "r", stdin)) {
bb_simple_perror_msg(fname);
dumper->exitval = 1;
continue;
}
}
} else {
if (dumper->next__done)
return 0; /* no next file */
}
dumper->next__done = 1;
if (dumper->pub.dump_skip)
do_skip(dumper, fname ? fname : "stdin");
if (dumper->pub.dump_skip == 0)
return 1;
}
/* NOTREACHED */
}
static unsigned char *get(priv_dumper_t *dumper)
{
int n;
int need, nread;
int blocksize = dumper->blocksize;
if (!dumper->get__curp) {
dumper->address = (off_t)0; /*DBU:[dave@cray.com] initialize,initialize..*/
dumper->get__curp = xmalloc(blocksize);
dumper->get__savp = xzalloc(blocksize); /* need to be initialized */
} else {
unsigned char *tmp = dumper->get__curp;
dumper->get__curp = dumper->get__savp;
dumper->get__savp = tmp;
dumper->savaddress += blocksize;
dumper->address = dumper->savaddress;
}
need = blocksize;
nread = 0;
while (1) {
/*
* if read the right number of bytes, or at EOF for one file,
* and no other files are available, zero-pad the rest of the
* block and set the end flag.
*/
if (!dumper->pub.dump_length || (dumper->get__ateof && !next(dumper))) {
if (need == blocksize) {
return NULL;
}
if (dumper->pub.dump_vflag != ALL /* not "show all"? */
&& dumper->pub.dump_vflag != FIRST /* not first line? */
&& memcmp(dumper->get__curp, dumper->get__savp, nread) == 0 /* same data? */
) {
if (dumper->pub.dump_vflag != DUP) {
puts("*");
}
}
memset(dumper->get__curp + nread, 0, need);
dumper->eaddress = dumper->address + nread;
return dumper->get__curp;
}
n = fread(dumper->get__curp + nread, sizeof(unsigned char),
dumper->pub.dump_length == -1 ? need : MIN(dumper->pub.dump_length, need), stdin);
if (n == 0) {
if (ferror(stdin)) {
bb_simple_perror_msg(dumper->argv[-1]);
}
dumper->get__ateof = 1;
continue;
}
dumper->get__ateof = 0;
if (dumper->pub.dump_length != -1) {
dumper->pub.dump_length -= n;
}
need -= n;
if (need == 0) {
if (dumper->pub.dump_vflag == ALL /* "show all"? */
|| dumper->pub.dump_vflag == FIRST /* first line? */
|| memcmp(dumper->get__curp, dumper->get__savp, blocksize) != 0 /* not same data? */
) {
if (dumper->pub.dump_vflag == DUP || dumper->pub.dump_vflag == FIRST) {
dumper->pub.dump_vflag = WAIT;
}
return dumper->get__curp;
}
if (dumper->pub.dump_vflag == WAIT) {
puts("*");
}
dumper->pub.dump_vflag = DUP;
dumper->savaddress += blocksize;
dumper->address = dumper->savaddress;
need = blocksize;
nread = 0;
} else {
nread += n;
}
}
}
static void bpad(PR *pr)
{
char *p1, *p2;
/*
* remove all conversion flags; '-' is the only one valid
* with %s, and it's not useful here.
*/
pr->flags = F_BPAD;
*pr->cchar = 's';
for (p1 = pr->fmt; *p1 != '%'; ++p1)
continue;
for (p2 = ++p1; *p1 && strchr(" -0+#", *p1); ++p1)
if (pr->nospace)
pr->nospace--;
while ((*p2++ = *p1++) != '\0')
continue;
}
static const char conv_str[] ALIGN1 =
"\0" "\\""0""\0"
"\007""\\""a""\0" /* \a */
"\b" "\\""b""\0"
"\f" "\\""f""\0"
"\n" "\\""n""\0"
"\r" "\\""r""\0"
"\t" "\\""t""\0"
"\v" "\\""v""\0"
;
static void conv_c(PR *pr, unsigned char *p)
{
const char *str = conv_str;
do {
if (*p == *str) {
++str;
goto strpr; /* map e.g. '\n' to "\\n" */
}
str += 4;
} while (*str);
if (isprint_asciionly(*p)) {
*pr->cchar = 'c';
printf(pr->fmt, *p);
} else {
char buf[4];
/* gcc-8.0.1 needs lots of casts to shut up */
sprintf(buf, "%03o", (unsigned)(uint8_t)*p);
str = buf;
strpr:
*pr->cchar = 's';
printf(pr->fmt, str);
}
}
static void conv_u(PR *pr, unsigned char *p)
{
static const char list[] ALIGN1 =
"nul\0soh\0stx\0etx\0eot\0enq\0ack\0bel\0"
"bs\0_ht\0_lf\0_vt\0_ff\0_cr\0_so\0_si\0_"
"dle\0dcl\0dc2\0dc3\0dc4\0nak\0syn\0etb\0"
"can\0em\0_sub\0esc\0fs\0_gs\0_rs\0_us";
/* od used nl, not lf */
if (*p <= 0x1f) {
*pr->cchar = 's';
printf(pr->fmt, list + (4 * (int)*p));
} else if (*p == 0x7f) {
*pr->cchar = 's';
printf(pr->fmt, "del");
} else if (*p < 0x7f) { /* isprint() */
*pr->cchar = 'c';
printf(pr->fmt, *p);
} else {
*pr->cchar = 'x';
printf(pr->fmt, (int) *p);
}
}
static void display(priv_dumper_t* dumper)
{
unsigned char *bp;
unsigned char savech = '\0';
while ((bp = get(dumper)) != NULL) {
FS *fs;
unsigned char *savebp;
off_t saveaddress;
fs = dumper->pub.fshead;
savebp = bp;
saveaddress = dumper->address;
for (; fs; fs = fs->nextfs, bp = savebp, dumper->address = saveaddress) {
FU *fu;
for (fu = fs->nextfu; fu; fu = fu->nextfu) {
int cnt;
if (fu->flags & F_IGNORE) {
break;
}
for (cnt = fu->reps; cnt; --cnt) {
PR *pr;
for (pr = fu->nextpr; pr; dumper->address += pr->bcnt,
bp += pr->bcnt, pr = pr->nextpr) {
if (dumper->eaddress
&& dumper->address >= dumper->eaddress
) {
if (dumper->pub.eofstring) {
/* xxd support: requested to not pad incomplete blocks */
fputs_stdout(dumper->pub.eofstring);
return;
}
if (!(pr->flags & (F_TEXT | F_BPAD)))
bpad(pr);
}
if (cnt == 1 && pr->nospace) {
savech = *pr->nospace;
*pr->nospace = '\0';
}
switch (pr->flags) {
case F_ADDRESS:
printf(pr->fmt, (unsigned) dumper->address);
break;
case F_BPAD:
printf(pr->fmt, "");
break;
case F_C:
conv_c(pr, bp);
break;
case F_CHAR:
printf(pr->fmt, *bp);
break;
case F_DBL: {
double dval;
float fval;
switch (pr->bcnt) {
case 4:
memcpy(&fval, bp, sizeof(fval));
printf(pr->fmt, fval);
break;
case 8:
memcpy(&dval, bp, sizeof(dval));
printf(pr->fmt, dval);
break;
}
break;
}
case F_INT: {
int ival;
short sval;
switch (pr->bcnt) {
case 1:
printf(pr->fmt, (int) *bp);
break;
case 2:
memcpy(&sval, bp, sizeof(sval));
printf(pr->fmt, (int) sval);
break;
case 4:
memcpy(&ival, bp, sizeof(ival));
printf(pr->fmt, ival);
break;
}
break;
}
case F_P:
printf(pr->fmt, isprint_asciionly(*bp) ? *bp : '.');
break;
case F_STR:
printf(pr->fmt, (char *) bp);
break;
case F_TEXT:
printf(pr->fmt);
break;
case F_U:
conv_u(pr, bp);
break;
case F_UINT: {
unsigned ival;
unsigned short sval;
switch (pr->bcnt) {
case 1:
printf(pr->fmt, (unsigned) *bp);
break;
case 2:
memcpy(&sval, bp, sizeof(sval));
printf(pr->fmt, (unsigned) sval);
break;
case 4:
memcpy(&ival, bp, sizeof(ival));
printf(pr->fmt, ival);
break;
}
break;
}
}
if (cnt == 1 && pr->nospace) {
*pr->nospace = savech;
}
}
}
}
}
}
if (dumper->endfu) {
PR *pr;
/*
* if eaddress not set, error or file size was multiple
* of blocksize, and no partial block ever found.
*/
if (!dumper->eaddress) {
if (!dumper->address) {
return;
}
dumper->eaddress = dumper->address;
}
for (pr = dumper->endfu->nextpr; pr; pr = pr->nextpr) {
switch (pr->flags) {
case F_ADDRESS:
printf(pr->fmt, (unsigned) dumper->eaddress);
break;
case F_TEXT:
printf(pr->fmt);
break;
}
}
}
}
#define dumper ((priv_dumper_t*)pub_dumper)
int FAST_FUNC bb_dump_dump(dumper_t *pub_dumper, char **argv)
{
FS *tfs;
int blocksize;
/* figure out the data block size */
blocksize = 0;
tfs = dumper->pub.fshead;
while (tfs) {
tfs->bcnt = bb_dump_size(tfs);
if (blocksize < tfs->bcnt) {
blocksize = tfs->bcnt;
}
tfs = tfs->nextfs;
}
dumper->blocksize = blocksize;
/* rewrite the rules, do syntax checking */
for (tfs = dumper->pub.fshead; tfs; tfs = tfs->nextfs) {
rewrite(dumper, tfs);
}
dumper->argv = argv;
display(dumper);
return dumper->exitval;
}
void FAST_FUNC bb_dump_add(dumper_t* pub_dumper, const char *fmt)
{
const char *p;
FS *tfs;
FU **nextfupp;
/* start new linked list of format units */
tfs = xzalloc(sizeof(FS)); /*DBU:[dave@cray.com] start out NULL */
if (!dumper->pub.fshead) {
dumper->pub.fshead = tfs;
} else {
FS *fslast = dumper->pub.fshead;
while (fslast->nextfs)
fslast = fslast->nextfs;
fslast->nextfs = tfs;
}
nextfupp = &tfs->nextfu;
/* take the format string and break it up into format units */
p = fmt;
for (;;) {
FU *tfu;
const char *savep;
p = skip_whitespace(p);
if (*p == '\0') {
break;
}
/* allocate a new format unit and link it in */
/* NOSTRICT */
/* DBU:[dave@cray.com] zalloc so that forward pointers start out NULL */
tfu = xzalloc(sizeof(FU));
*nextfupp = tfu;
nextfupp = &tfu->nextfu;
tfu->reps = 1;
/* if leading digit, repetition count */
if (isdigit(*p)) {
for (savep = p; isdigit(*p); ++p)
continue;
if (!isspace(*p) && *p != '/') {
bb_error_msg_and_die("bad format {%s}", fmt);
}
/* may overwrite either white space or slash */
tfu->reps = atoi(savep);
tfu->flags = F_SETREP;
/* skip trailing white space */
p = skip_whitespace(++p);
}
/* skip slash and trailing white space */
if (*p == '/') {
p = skip_whitespace(p + 1);
}
/* byte count */
if (isdigit(*p)) {
// TODO: use bb_strtou
savep = p;
while (isdigit(*++p))
continue;
if (!isspace(*p)) {
bb_error_msg_and_die("bad format {%s}", fmt);
}
// Above check prohibits formats such as '/1"%02x"' - it requires space after 1.
// Other than this, formats can be pretty much jammed together:
// "%07_ax:"8/2 "%04x|""\n"
// but this space is required. The check *can* be removed, but
// keeping it to stay compat with util-linux hexdump.
tfu->bcnt = atoi(savep);
/* skip trailing white space */
p = skip_whitespace(p + 1);
}
/* format */
if (*p != '"') {
bb_error_msg_and_die("bad format {%s}", fmt);
}
for (savep = ++p; *p != '"';) {
if (*p++ == '\0') {
bb_error_msg_and_die("bad format {%s}", fmt);
}
}
tfu->fmt = xstrndup(savep, p - savep);
/* alphabetic escape sequences have to be done in place */
strcpy_and_process_escape_sequences(tfu->fmt, tfu->fmt);
/* unknown mappings are not changed: "\z" -> '\\' 'z' */
/* trailing backslash, if any, is preserved */
#if 0
char *p1;
char *p2;
p1 = tfu->fmt;
for (p2 = p1;; ++p1, ++p2) {
*p2 = *p1;
if (*p1 == '\0')
break;
if (*p1 == '\\') {
const char *cs;
p1++;
*p2 = *p1;
if (*p1 == '\0') {
/* "...\" trailing backslash. Eaten. */
break;
}
cs = conv_str + 4; /* skip NUL element */
do {
/* map e.g. "\n" -> '\n' */
if (*p1 == cs[2]) {
*p2 = cs[0];
break;
}
cs += 4;
} while (*cs);
/* unknown mappings remove bkslash: "\z" -> 'z' */
}
}
#endif
p++;
}
}
/*
* Copyright (c) 1989 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. 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.
*/
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