freebsd-dev/usr.bin/hexdump/odsyntax.c

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/*-
* 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
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static char sccsid[] = "@(#)odsyntax.c 8.2 (Berkeley) 5/4/95";
#endif
static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
#include <sys/types.h>
#include <ctype.h>
#include <err.h>
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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
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#include "hexdump.h"
int deprecated;
static void odoffset __P((int, char ***));
static void odprecede __P((void));
void
oldsyntax(argc, argvp)
int argc;
char ***argvp;
{
extern enum _vflag vflag;
extern FS *fshead;
int ch;
char **argv;
deprecated = 1;
argv = *argvp;
while ((ch = getopt(argc, argv, "aBbcDdeFfHhIiLlOoPpswvXx")) != -1)
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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': /* undocumented in od */
case 'F':
odprecede();
add("2/8 \" %21.14e \" \"\\n\"");
break;
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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 'O':
odprecede();
add("4/4 \" %011o \" \"\\n\"");
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)");
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if (ch != '?')
warnx("hexdump(1) compatibility doesn't support the -%c option%s",
ch, ch == 's' ? "; see strings(1)" : "");
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usage();
}
if (!fshead) {
add("\"%07.7_Ao\n\"");
add("\"%07.7_ao \" 8/2 \"%06o \" \"\\n\"");
}
argc -= optind;
*argvp += optind;
if (argc)
odoffset(argc, argvp);
}
static void
odoffset(argc, argvp)
int argc;
char ***argvp;
{
extern off_t skip;
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unsigned char *p, *num, *end;
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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;
}
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skip = strtol(num, (char **)&end, base ? base : 8);
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/* if end isn't the same as p, we got a non-octal digit */
if (end != p) {
skip = 0;
return;
}
if (*p) {
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if (*p == 'B') {
skip *= 1024;
++p;
} else if (*p == 'b') {
skip *= 512;
++p;
}
}
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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()
{
static int first = 1;
if (first) {
first = 0;
add("\"%07.7_Ao\n\"");
add("\"%07.7_ao \"");
} else
add("\" \"");
}