447 lines
9.6 KiB
C
447 lines
9.6 KiB
C
/*-
|
|
* Copyright (c) 1990, 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[] = "@(#)odsyntax.c 8.2 (Berkeley) 5/4/95";
|
|
#endif
|
|
#endif /* not lint */
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <ctype.h>
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <float.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "hexdump.h"
|
|
|
|
#define PADDING " "
|
|
|
|
int odmode;
|
|
|
|
static void odadd(const char *);
|
|
static void odformat(const char *);
|
|
static const char *odformatfp(char, const char *);
|
|
static const char *odformatint(char, const char *);
|
|
static void odoffset(int, char ***);
|
|
static void odusage(void);
|
|
|
|
void
|
|
oldsyntax(argc, argvp)
|
|
int argc;
|
|
char ***argvp;
|
|
{
|
|
static char empty[] = "", padding[] = PADDING;
|
|
int ch;
|
|
char **argv, *end;
|
|
|
|
/* Add initial (default) address format. -A may change it later. */
|
|
#define TYPE_OFFSET 7
|
|
add("\"%07.7_Ao\n\"");
|
|
add("\"%07.7_ao \"");
|
|
|
|
odmode = 1;
|
|
argv = *argvp;
|
|
while ((ch = getopt(argc, argv, "A:aBbcDdeFfHhIij:LlN:Oost:vXx")) != -1)
|
|
switch (ch) {
|
|
case 'A':
|
|
switch (*optarg) {
|
|
case 'd': case 'o': case 'x':
|
|
fshead->nextfu->fmt[TYPE_OFFSET] = *optarg;
|
|
fshead->nextfs->nextfu->fmt[TYPE_OFFSET] =
|
|
*optarg;
|
|
break;
|
|
case 'n':
|
|
fshead->nextfu->fmt = empty;
|
|
fshead->nextfs->nextfu->fmt = padding;
|
|
break;
|
|
default:
|
|
errx(1, "%s: invalid address base", optarg);
|
|
}
|
|
break;
|
|
case 'a':
|
|
odformat("a");
|
|
break;
|
|
case 'B':
|
|
case 'o':
|
|
odformat("o2");
|
|
break;
|
|
case 'b':
|
|
odformat("o1");
|
|
break;
|
|
case 'c':
|
|
odformat("c");
|
|
break;
|
|
case 'd':
|
|
odformat("u2");
|
|
break;
|
|
case 'D':
|
|
odformat("u4");
|
|
break;
|
|
case 'e': /* undocumented in od */
|
|
case 'F':
|
|
odformat("fD");
|
|
break;
|
|
case 'f':
|
|
odformat("fF");
|
|
break;
|
|
case 'H':
|
|
case 'X':
|
|
odformat("x4");
|
|
break;
|
|
case 'h':
|
|
case 'x':
|
|
odformat("x2");
|
|
break;
|
|
case 'I':
|
|
case 'L':
|
|
case 'l':
|
|
odformat("dL");
|
|
break;
|
|
case 'i':
|
|
odformat("dI");
|
|
break;
|
|
case 'j':
|
|
errno = 0;
|
|
skip = strtoll(optarg, &end, 0);
|
|
if (*end == 'b')
|
|
skip *= 512;
|
|
else if (*end == 'k')
|
|
skip *= 1024;
|
|
else if (*end == 'm')
|
|
skip *= 1048576L;
|
|
if (errno != 0 || skip < 0 || strlen(end) > 1)
|
|
errx(1, "%s: invalid skip amount", optarg);
|
|
break;
|
|
case 'N':
|
|
if ((length = atoi(optarg)) <= 0)
|
|
errx(1, "%s: invalid length", optarg);
|
|
break;
|
|
case 'O':
|
|
odformat("o4");
|
|
break;
|
|
case 's':
|
|
odformat("d2");
|
|
break;
|
|
case 't':
|
|
odformat(optarg);
|
|
break;
|
|
case 'v':
|
|
vflag = ALL;
|
|
break;
|
|
case '?':
|
|
default:
|
|
odusage();
|
|
}
|
|
|
|
if (fshead->nextfs->nextfs == NULL)
|
|
odformat("oS");
|
|
|
|
argc -= optind;
|
|
*argvp += optind;
|
|
|
|
if (argc)
|
|
odoffset(argc, argvp);
|
|
}
|
|
|
|
static void
|
|
odusage(void)
|
|
{
|
|
|
|
fprintf(stderr,
|
|
"usage: od [-aBbcDdeFfHhIiLlOosvXx] [-A base] [-j skip] [-N length] [-t type]\n");
|
|
fprintf(stderr,
|
|
" [[+]offset[.][Bb]] [file ...]\n");
|
|
exit(1);
|
|
}
|
|
|
|
static void
|
|
odoffset(argc, argvp)
|
|
int argc;
|
|
char ***argvp;
|
|
{
|
|
unsigned char *p, *num, *end;
|
|
int base;
|
|
|
|
/*
|
|
* The offset syntax of od(1) was genuinely bizarre. First, if
|
|
* it started with a plus it had to be an offset. Otherwise, if
|
|
* there were at least two arguments, a number or lower-case 'x'
|
|
* followed by a number makes it an offset. By default it was
|
|
* octal; if it started with 'x' or '0x' it was hex. If it ended
|
|
* in a '.', it was decimal. If a 'b' or 'B' was appended, it
|
|
* multiplied the number by 512 or 1024 byte units. There was
|
|
* no way to assign a block count to a hex offset.
|
|
*
|
|
* We assume it's a file if the offset is bad.
|
|
*/
|
|
p = argc == 1 ? (*argvp)[0] : (*argvp)[1];
|
|
|
|
if (*p != '+' && (argc < 2 ||
|
|
(!isdigit(p[0]) && (p[0] != 'x' || !isxdigit(p[1])))))
|
|
return;
|
|
|
|
base = 0;
|
|
/*
|
|
* skip over leading '+', 'x[0-9a-fA-f]' or '0x', and
|
|
* set base.
|
|
*/
|
|
if (p[0] == '+')
|
|
++p;
|
|
if (p[0] == 'x' && isxdigit(p[1])) {
|
|
++p;
|
|
base = 16;
|
|
} else if (p[0] == '0' && p[1] == 'x') {
|
|
p += 2;
|
|
base = 16;
|
|
}
|
|
|
|
/* skip over the number */
|
|
if (base == 16)
|
|
for (num = p; isxdigit(*p); ++p);
|
|
else
|
|
for (num = p; isdigit(*p); ++p);
|
|
|
|
/* check for no number */
|
|
if (num == p)
|
|
return;
|
|
|
|
/* if terminates with a '.', base is decimal */
|
|
if (*p == '.') {
|
|
if (base)
|
|
return;
|
|
base = 10;
|
|
}
|
|
|
|
skip = strtoll(num, (char **)&end, base ? base : 8);
|
|
|
|
/* if end isn't the same as p, we got a non-octal digit */
|
|
if (end != p) {
|
|
skip = 0;
|
|
return;
|
|
}
|
|
|
|
if (*p) {
|
|
if (*p == 'B') {
|
|
skip *= 1024;
|
|
++p;
|
|
} else if (*p == 'b') {
|
|
skip *= 512;
|
|
++p;
|
|
}
|
|
}
|
|
|
|
if (*p) {
|
|
skip = 0;
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* If the offset uses a non-octal base, the base of the offset
|
|
* is changed as well. This isn't pretty, but it's easy.
|
|
*/
|
|
if (base == 16) {
|
|
fshead->nextfu->fmt[TYPE_OFFSET] = 'x';
|
|
fshead->nextfs->nextfu->fmt[TYPE_OFFSET] = 'x';
|
|
} else if (base == 10) {
|
|
fshead->nextfu->fmt[TYPE_OFFSET] = 'd';
|
|
fshead->nextfs->nextfu->fmt[TYPE_OFFSET] = 'd';
|
|
}
|
|
|
|
/* Terminate file list. */
|
|
(*argvp)[1] = NULL;
|
|
}
|
|
|
|
static void
|
|
odformat(const char *fmt)
|
|
{
|
|
char fchar;
|
|
|
|
while (*fmt != '\0') {
|
|
switch ((fchar = *fmt++)) {
|
|
case 'a':
|
|
odadd("16/1 \"%3_u \" \"\\n\"");
|
|
break;
|
|
case 'c':
|
|
odadd("16/1 \"%3_c \" \"\\n\"");
|
|
break;
|
|
case 'o': case 'u': case 'd': case 'x':
|
|
fmt = odformatint(fchar, fmt);
|
|
break;
|
|
case 'f':
|
|
fmt = odformatfp(fchar, fmt);
|
|
break;
|
|
default:
|
|
errx(1, "%c: unrecognised format character", fchar);
|
|
}
|
|
}
|
|
}
|
|
|
|
static const char *
|
|
odformatfp(char fchar __unused, const char *fmt)
|
|
{
|
|
size_t isize;
|
|
int digits;
|
|
char *end, *hdfmt;
|
|
|
|
isize = sizeof(double);
|
|
switch (*fmt) {
|
|
case 'F':
|
|
isize = sizeof(float);
|
|
fmt++;
|
|
break;
|
|
case 'D':
|
|
isize = sizeof(double);
|
|
fmt++;
|
|
break;
|
|
case 'L':
|
|
isize = sizeof(long double);
|
|
fmt++;
|
|
break;
|
|
default:
|
|
if (isdigit((unsigned char)*fmt)) {
|
|
errno = 0;
|
|
isize = (size_t)strtoul(fmt, &end, 10);
|
|
if (errno != 0 || isize == 0)
|
|
errx(1, "%s: invalid size", fmt);
|
|
fmt = (const char *)end;
|
|
}
|
|
}
|
|
switch (isize) {
|
|
case sizeof(float):
|
|
digits = FLT_DIG;
|
|
break;
|
|
case sizeof(double):
|
|
digits = DBL_DIG;
|
|
break;
|
|
default:
|
|
if (isize == sizeof(long double))
|
|
digits = LDBL_DIG;
|
|
else
|
|
errx(1, "unsupported floating point size %lu",
|
|
(u_long)isize);
|
|
}
|
|
|
|
asprintf(&hdfmt, "%lu/%lu \" %%%d.%de \" \"\\n\"",
|
|
16UL / (u_long)isize, (u_long)isize, digits + 8, digits);
|
|
if (hdfmt == NULL)
|
|
err(1, NULL);
|
|
odadd(hdfmt);
|
|
free(hdfmt);
|
|
|
|
return (fmt);
|
|
}
|
|
|
|
static const char *
|
|
odformatint(char fchar, const char *fmt)
|
|
{
|
|
unsigned long long n;
|
|
size_t isize;
|
|
int digits;
|
|
char *end, *hdfmt;
|
|
|
|
isize = sizeof(int);
|
|
switch (*fmt) {
|
|
case 'C':
|
|
isize = sizeof(char);
|
|
fmt++;
|
|
break;
|
|
case 'I':
|
|
isize = sizeof(int);
|
|
fmt++;
|
|
break;
|
|
case 'L':
|
|
isize = sizeof(long);
|
|
fmt++;
|
|
break;
|
|
case 'S':
|
|
isize = sizeof(short);
|
|
fmt++;
|
|
break;
|
|
default:
|
|
if (isdigit((unsigned char)*fmt)) {
|
|
errno = 0;
|
|
isize = (size_t)strtoul(fmt, &end, 10);
|
|
if (errno != 0 || isize == 0)
|
|
errx(1, "%s: invalid size", fmt);
|
|
if (isize != sizeof(char) && isize != sizeof(short) &&
|
|
isize != sizeof(int) && isize != sizeof(long))
|
|
errx(1, "unsupported int size %lu",
|
|
(u_long)isize);
|
|
fmt = (const char *)end;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Calculate the maximum number of digits we need to
|
|
* fit the number. Overestimate for decimal with log
|
|
* base 8. We need one extra space for signed numbers
|
|
* to store the sign.
|
|
*/
|
|
n = (1ULL << (8 * isize)) - 1;
|
|
digits = 0;
|
|
while (n != 0) {
|
|
digits++;
|
|
n >>= (fchar == 'x') ? 4 : 3;
|
|
}
|
|
if (fchar == 'd')
|
|
digits++;
|
|
asprintf(&hdfmt, "%lu/%lu \"%*s%%%s%d%c\" \"\\n\"",
|
|
16UL / (u_long)isize, (u_long)isize, (int)(4 * isize - digits),
|
|
"", (fchar == 'd' || fchar == 'u') ? "" : "0", digits, fchar);
|
|
if (hdfmt == NULL)
|
|
err(1, NULL);
|
|
odadd(hdfmt);
|
|
free(hdfmt);
|
|
|
|
return (fmt);
|
|
}
|
|
|
|
static void
|
|
odadd(const char *fmt)
|
|
{
|
|
static int needpad;
|
|
|
|
if (needpad)
|
|
add("\""PADDING"\"");
|
|
add(fmt);
|
|
needpad = 1;
|
|
}
|