401 lines
8.7 KiB
C
401 lines
8.7 KiB
C
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/* $NetBSD: odsyntax.c,v 1.26 2010/02/09 14:06:37 drochner Exp $ */
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/*-
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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#endif
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#include <sys/cdefs.h>
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#if 0
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#if !defined(lint)
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#if 0
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static char sccsid[] = "@(#)odsyntax.c 8.2 (Berkeley) 5/4/95";
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#else
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__RCSID("$NetBSD: odsyntax.c,v 1.26 2010/02/09 14:06:37 drochner Exp $");
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#endif
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#endif /* not lint */
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#endif
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#include <sys/types.h>
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#include <ctype.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <util.h>
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#include "hexdump.h"
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#define PADDING " "
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struct odformat {
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char type;
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int nbytes;
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char const *format;
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int minwidth;
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};
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struct odaddrformat {
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char type;
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char const *format1;
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char const *format2;
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};
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int odmode;
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static void odoffset(int, char ***);
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static void posixtypes(char const *);
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void
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odsyntax(int argc, char ***argvp)
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{
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static char empty[] = "", padding[] = PADDING;
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int ch;
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char *p, **argv;
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#define TYPE_OFFSET 7
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add("\"%07.7_Ao\n\"");
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add("\"%07.7_ao \"");
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odmode = 1;
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argv = *argvp;
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while ((ch = getopt(argc, argv,
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"A:aBbcDdeFfHhIij:LlN:Oot:vXx")) != -1)
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switch (ch) {
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case 'A':
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switch (*optarg) {
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case 'd': case 'o': case 'x':
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fshead->nextfu->fmt[TYPE_OFFSET] = *optarg;
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fshead->nextfs->nextfu->fmt[TYPE_OFFSET] =
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*optarg;
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break;
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case 'n':
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fshead->nextfu->fmt = empty;
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fshead->nextfs->nextfu->fmt = padding;
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break;
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default:
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errx(1, "%s: invalid address base", optarg);
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}
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break;
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case 'a':
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posixtypes("a");
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break;
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case 'B':
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case 'o':
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posixtypes("o2");
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break;
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case 'b':
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posixtypes("o1");
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break;
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case 'c':
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posixtypes("c");
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break;
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case 'd':
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posixtypes("u2");
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break;
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case 'D':
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posixtypes("u4");
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break;
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case 'e': /* undocumented in od */
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case 'F':
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posixtypes("f8");
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break;
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case 'f':
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posixtypes("f4");
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break;
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case 'H':
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case 'X':
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posixtypes("x4");
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break;
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case 'h':
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case 'x':
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posixtypes("x2");
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break;
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case 'I':
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case 'L':
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case 'l':
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posixtypes("d4");
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break;
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case 'i':
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posixtypes("d2");
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break;
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case 'j':
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if ((skip = strtol(optarg, &p, 0)) < 0)
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errx(1, "%s: bad skip value", optarg);
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switch(*p) {
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case 'b':
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skip *= 512;
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break;
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case 'k':
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skip *= 1024;
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break;
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case 'm':
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skip *= 1048576;
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break;
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}
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break;
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case 'N':
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if ((length = atoi(optarg)) < 0)
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errx(1, "%s: bad length value", optarg);
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break;
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case 'O':
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posixtypes("o4");
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break;
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case 't':
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posixtypes(optarg);
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break;
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case 'v':
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vflag = ALL;
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break;
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case '?':
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default:
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usage();
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}
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if (fshead->nextfs->nextfs == NULL)
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posixtypes("oS");
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argc -= optind;
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*argvp += optind;
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if (argc)
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odoffset(argc, argvp);
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}
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/* formats used for -t */
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static const struct odformat odftab[] = {
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{ 'a', 1, "%3_u", 4 },
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{ 'c', 1, "%3_c", 4 },
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{ 'd', 1, "%4d", 5 },
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{ 'd', 2, "%6d", 6 },
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{ 'd', 4, "%11d", 11 },
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{ 'd', 8, "%20d", 20 },
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{ 'o', 1, "%03o", 4 },
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{ 'o', 2, "%06o", 7 },
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{ 'o', 4, "%011o", 12 },
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{ 'o', 8, "%022o", 23 },
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{ 'u', 1, "%03u" , 4 },
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{ 'u', 2, "%05u" , 6 },
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{ 'u', 4, "%010u", 11 },
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{ 'u', 8, "%020u", 21 },
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{ 'x', 1, "%02x", 3 },
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{ 'x', 2, "%04x", 5 },
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{ 'x', 4, "%08x", 9 },
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{ 'x', 8, "%016x", 17 },
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{ 'f', 4, "%14.7e", 15 },
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{ 'f', 8, "%21.14e", 22 },
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{ 0, 0, NULL, 0 }
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};
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/*
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* Interpret a POSIX-style -t argument.
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*/
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static void
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posixtypes(char const *type_string)
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{
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int nbytes = 0;
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char *fmt, type, *tmp;
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struct odformat const *odf;
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while (*type_string) {
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switch ((type = *type_string++)) {
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case 'a':
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case 'c':
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nbytes = 1;
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break;
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case 'f':
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if (isupper((unsigned char)*type_string)) {
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switch(*type_string) {
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case 'F':
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nbytes = sizeof(float);
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break;
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case 'D':
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nbytes = sizeof(double);
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break;
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case 'L':
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nbytes = sizeof(long double);
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break;
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default:
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warnx("Bad type-size qualifier '%c'",
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*type_string);
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usage();
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}
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type_string++;
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} else if (isdigit((unsigned char)*type_string)) {
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nbytes = strtol(type_string, &tmp, 10);
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type_string = tmp;
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} else
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nbytes = 8;
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break;
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case 'd':
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case 'o':
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case 'u':
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case 'x':
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if (isupper((unsigned char)*type_string)) {
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switch(*type_string) {
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case 'C':
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nbytes = sizeof(char);
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break;
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case 'S':
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nbytes = sizeof(short);
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break;
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case 'I':
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nbytes = sizeof(int);
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break;
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case 'L':
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nbytes = sizeof(long);
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break;
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default:
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warnx("Bad type-size qualifier '%c'",
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*type_string);
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usage();
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}
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type_string++;
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} else if (isdigit((unsigned char)*type_string)) {
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nbytes = strtol(type_string, &tmp, 10);
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type_string = tmp;
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} else
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nbytes = 4;
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break;
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default:
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usage();
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}
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for (odf = odftab; odf->type != 0; odf++)
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if (odf->type == type && odf->nbytes == nbytes)
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break;
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if (odf->type == 0)
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errx(1, "%c%d: format not supported", type, nbytes);
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(void)easprintf(&fmt, "%d/%d \"%*s%s \" \"\\n\"",
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16 / nbytes, nbytes,
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4 * nbytes - odf->minwidth, "", odf->format);
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add(fmt);
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}
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}
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static void
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odoffset(int argc, char ***argvp)
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{
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char *num, *p;
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int base;
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char *end;
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/*
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* The offset syntax of od(1) was genuinely bizarre. First, if
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* it started with a plus it had to be an offset. Otherwise, if
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* there were at least two arguments, a number or lower-case 'x'
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* followed by a number makes it an offset. By default it was
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* octal; if it started with 'x' or '0x' it was hex. If it ended
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* in a '.', it was decimal. If a 'b' or 'B' was appended, it
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* multiplied the number by 512 or 1024 byte units. There was
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* no way to assign a block count to a hex offset.
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*
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* We assume it's a file if the offset is bad.
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*/
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p = argc == 1 ? (*argvp)[0] : (*argvp)[1];
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if (!p)
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return;
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if (*p != '+' && (argc < 2 ||
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(!isdigit((unsigned char)p[0]) &&
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(p[0] != 'x' || !isxdigit((unsigned char)p[1])))))
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return;
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base = 0;
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/*
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* skip over leading '+', 'x[0-9a-fA-f]' or '0x', and
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* set base.
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*/
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if (p[0] == '+')
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++p;
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if (p[0] == 'x' && isxdigit((unsigned char)p[1])) {
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++p;
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base = 16;
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} else if (p[0] == '0' && p[1] == 'x') {
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p += 2;
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base = 16;
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}
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/* skip over the number */
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if (base == 16)
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for (num = p; isxdigit((unsigned char)*p); ++p);
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else
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for (num = p; isdigit((unsigned char)*p); ++p);
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/* check for no number */
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if (num == p)
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return;
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/* if terminates with a '.', base is decimal */
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if (*p == '.') {
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if (base)
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return;
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base = 10;
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}
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skip = strtol(num, &end, base ? base : 8);
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/* if end isn't the same as p, we got a non-octal digit */
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if (end != p) {
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skip = 0;
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return;
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}
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if (*p) {
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if (*p == 'B') {
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skip *= 1024;
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++p;
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} else if (*p == 'b') {
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skip *= 512;
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++p;
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}
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}
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if (*p) {
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skip = 0;
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return;
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}
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/*
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* If the offset uses a non-octal base, the base of the offset
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* is changed as well. This isn't pretty, but it's easy.
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*/
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if (base == 16) {
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fshead->nextfu->fmt[TYPE_OFFSET] = 'x';
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fshead->nextfs->nextfu->fmt[TYPE_OFFSET] = 'x';
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} else if (base == 10) {
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fshead->nextfu->fmt[TYPE_OFFSET] = 'd';
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fshead->nextfs->nextfu->fmt[TYPE_OFFSET] = 'd';
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}
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||
|
|
|
||
|
|
/* Terminate file list. */
|
||
|
|
(*argvp)[1] = NULL;
|
||
|
|
}
|