Return to odsyntax.c CVS log

Up to [local] / src / usr.bin / hexdump

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: odsyntax.c,v 1.17 2009/10/27 23:59:39 deraadt 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.
 */

#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("\"         \"");
}