OpenBSD-4.6/usr.bin/hexdump/odsyntax.c
/* $OpenBSD: odsyntax.c,v 1.16 2007/02/06 20:55:13 jmc Exp $ */
/* $NetBSD: odsyntax.c,v 1.15 2001/12/07 15:14:29 bjh21 Exp $ */
/*-
* 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. 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
/*static char sccsid[] = "from: @(#)odsyntax.c 5.4 (Berkeley) 3/8/91";*/
static char rcsid[] = "$OpenBSD: odsyntax.c,v 1.16 2007/02/06 20:55:13 jmc Exp $";
#endif /* not lint */
#include <sys/types.h>
#include <ctype.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "hexdump.h"
int deprecated;
static void odoffset(int, char ***);
static void posixtypes(char *);
static void odprecede(void);
/*
* formats used for -t
*/
static const char *fmt[4][4] = {
{
"16/1 \"%3d \" \"\\n\"",
"8/2 \" %05d \" \"\\n\"",
"4/4 \" %010d \" \"\\n\"",
"2/8 \" %019d \" \"\\n\""
}, {
"16/1 \"%03o \" \"\\n\"",
"8/2 \" %06o \" \"\\n\"",
"4/4 \" %011o\" \"\\n\"",
"2/8 \" %022o \" \"\\n\""
}, {
"16/1 \"%03u \" \"\\n\"",
"8/2 \" %05u \" \"\\n\"",
"4/4 \" %010u \" \"\\n\"",
"2/8 \" %020u \" \"\\n\""
}, {
"16/1 \" %02x \" \"\\n\"",
"8/2 \" %04x \" \"\\n\"",
"4/4 \" %08x \" \"\\n\"",
"2/8 \" %16x \" \"\\n\""
}
};
void
oldsyntax(int argc, char ***argvp)
{
int ch;
char *p, **argv;
deprecated = 1;
argv = *argvp;
while ((ch = getopt(argc, argv,
"aBbcDdeFfHhIij:LlN:OoPpst:wvXx")) != -1)
switch (ch) {
case 'a':
odprecede();
add("16/1 \"%3_u \" \"\\n\"");
break;
case 'B':
case 'o':
odprecede();
add("8/2 \" %06o \" \"\\n\"");
break;
case 'b':
odprecede();
add("16/1 \"%03o \" \"\\n\"");
break;
case 'c':
odprecede();
add("16/1 \"%3_c \" \"\\n\"");
break;
case 'd':
odprecede();
add("8/2 \" %05u \" \"\\n\"");
break;
case 'D':
odprecede();
add("4/4 \" %010u \" \"\\n\"");
break;
case 'e':
case 'F':
odprecede();
add("2/8 \" %21.14e \" \"\\n\"");
break;
case 'f':
odprecede();
add("4/4 \" %14.7e \" \"\\n\"");
break;
case 'H':
case 'X':
odprecede();
add("4/4 \" %08x \" \"\\n\"");
break;
case 'h':
case 'x':
odprecede();
add("8/2 \" %04x \" \"\\n\"");
break;
case 'I':
case 'L':
case 'l':
odprecede();
add("4/4 \" %11d \" \"\\n\"");
break;
case 'i':
odprecede();
add("8/2 \" %6d \" \"\\n\"");
break;
case 'j':
if ((skip = strtol(optarg, &p, 0)) < 0)
errx(1, "%s: bad skip value", optarg);
switch(*p) {
case 'b':
skip *= 512;
break;
case 'k':
skip *= 1024;
break;
case 'm':
skip *= 1048576;
break;
}
break;
case 'N':
if ((length = atoi(optarg)) < 0)
errx(1, "%s: bad length value", optarg);
break;
case 'O':
odprecede();
add("4/4 \" %011o \" \"\\n\"");
break;
case 't':
posixtypes(optarg);
break;
case 'v':
vflag = ALL;
break;
case 'P':
case 'p':
case 's':
case 'w':
case '?':
default:
warnx("od(1) has been deprecated for hexdump(1).");
if (ch != '?')
warnx(
"hexdump(1) compatibility doesn't"
" support the -%c option%s",
ch, ch == 's' ? "; see strings(1)." : ".");
oldusage();
}
if (!fshead) {
add("\"%07.7_Ao\n\"");
add("\"%07.7_ao \" 8/2 \"%06o \" \"\\n\"");
}
argc -= optind;
*argvp += optind;
if (argc)
odoffset(argc, argvp);
}
/*
* Interpret a POSIX-style -t argument.
*/
static void
posixtypes(char *type_string)
{
int x, y, nbytes;
while (*type_string) {
odprecede();
switch (*type_string) {
case 'a':
type_string++;
add("16/1 \"%3_u \" \"\\n\"");
break;
case 'c':
type_string++;
add("16/1 \"%3_c \" \"\\n\"");
break;
case 'f':
type_string++;
if (*type_string == 'F' ||
*type_string == '4') {
type_string++;
add("4/4 \" %14.7e\" \"\\n\"");
} else if (*type_string == 'L' ||
*type_string == '8') {
type_string++;
add("2/8 \" %16.14e\" \"\\n\"");
} else if (*type_string == 'D')
/* long doubles vary in size */
oldusage();
else
add("2/8 \" %16.14e\" \"\\n\"");
break;
case 'd':
x = 0;
goto extensions;
case 'o':
x = 1;
goto extensions;
case 'u':
x = 2;
goto extensions;
case 'x':
x = 3;
extensions:
type_string++;
y = 2;
if (isupper(*type_string)) {
switch(*type_string) {
case 'C':
nbytes = sizeof(char);
break;
case 'S':
nbytes = sizeof(short);
break;
case 'I':
nbytes = sizeof(int);
break;
case 'L':
nbytes = sizeof(long);
break;
default:
warnx("Bad type-size qualifier '%c'",
*type_string);
oldusage();
}
type_string++;
} else if (isdigit(*type_string))
nbytes = strtol(type_string, &type_string, 10);
switch (nbytes) {
case 1:
y = 0;
break;
case 2:
y = 1;
break;
case 4:
y = 2;
break;
case 8:
y = 3;
break;
default:
warnx("%d-byte integer formats are not "
"supported", nbytes);
oldusage();
}
add(fmt[x][y]);
break;
default:
oldusage();
}
}
}
void
oldusage(void)
{
extern char *__progname;
fprintf(stderr, "usage: %s [-aBbcDdeFfHhIiLlOovXx] [-j offset] "
"[-N length] [-t type_string]\n"
"\t[[+]offset[.][Bb]] [file ...]\n", __progname);
exit(1);
}
static void
odoffset(int argc, char ***argvp)
{
char *num, *p;
int base;
char *end;
/*
* 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)
return;
if (*p != '+' && (argc < 2 ||
(!isdigit((unsigned char)p[0]) &&
(p[0] != 'x' || !isxdigit((unsigned char)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((unsigned char)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((unsigned char)*p); ++p);
else
for (num = p; isdigit((unsigned char)*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 = strtol(num, &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.
*/
#define TYPE_OFFSET 7
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
odprecede(void)
{
static int first = 1;
if (first) {
first = 0;
add("\"%07.7_Ao\n\"");
add("\"%07.7_ao \"");
} else
add("\" \"");
}