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/* $OpenBSD: hexdump.c,v 1.20 2016/02/08 21:05:51 mmcc Exp $ */ |
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/* $NetBSD: hexdump.c,v 1.7 1997/10/19 02:34:06 lukem Exp $ */ |
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/* |
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* Copyright (c) 1989, 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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#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 <string.h> |
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#include "hexdump.h" |
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#define MINIMUM(a, b) (((a) < (b)) ? (a) : (b)) |
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FS *fshead; /* head of format strings */ |
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int blocksize; /* data block size */ |
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int exitval; /* final exit value */ |
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long length = -1; /* max bytes to read */ |
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char *iobuf; /* stdio I/O buffer */ |
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size_t iobufsiz; /* size of stdio I/O buffer */ |
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int |
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main(int argc, char *argv[]) |
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{ |
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FS *tfs; |
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char *p; |
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if (pledge("stdio rpath wpath cpath", NULL) == -1) |
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err(1, "pledge"); |
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if (!(p = strrchr(argv[0], 'o')) || strcmp(p, "od")) |
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newsyntax(argc, &argv); |
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else |
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oldsyntax(argc, &argv); |
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/* figure out the data block size */ |
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for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) { |
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tfs->bcnt = size(tfs); |
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if (blocksize < tfs->bcnt) |
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blocksize = tfs->bcnt; |
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} |
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if (length != -1) { |
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iobufsiz = MINIMUM(length, blocksize); |
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if ((iobuf = malloc(iobufsiz)) == NULL) |
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err(1, NULL); |
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} |
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/* rewrite the rules, do syntax checking */ |
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for (tfs = fshead; tfs; tfs = tfs->nextfs) |
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rewrite(tfs); |
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(void)next(argv); |
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display(); |
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exit(exitval); |
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} |