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hexdump.c revision 1.5 
      1 /*	$NetBSD: hexdump.c,v 1.5 1997/07/11 06:28:28 mikel Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1989 The Regents of the University of California.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #ifndef lint
     37 char copyright[] =
     38 "@(#) Copyright (c) 1989 The Regents of the University of California.\n\
     39  All rights reserved.\n";
     40 #endif /* not lint */
     41 
     42 #ifndef lint
     43 #if 0
     44 static char sccsid[] = "from: @(#)hexdump.c	5.5 (Berkeley) 6/1/90";
     45 #else
     46 static char rcsid[] = "$NetBSD: hexdump.c,v 1.5 1997/07/11 06:28:28 mikel Exp $";
     47 #endif
     48 #endif /* not lint */
     49 
     50 #include <sys/types.h>
     51 #include <stdio.h>
     52 #include <string.h>
     53 #include "hexdump.h"
     54 
     55 FS *fshead;				/* head of format strings */
     56 int blocksize;				/* data block size */
     57 int exitval;				/* final exit value */
     58 int length = -1;			/* max bytes to read */
     59 
     60 int
     61 main(argc, argv)
     62 	int argc;
     63 	char **argv;
     64 {
     65 	register FS *tfs;
     66 	char *p;
     67 
     68 	if (!(p = strrchr(argv[0], 'o')) || strcmp(p, "od"))
     69 		newsyntax(argc, &argv);
     70 	else
     71 		oldsyntax(argc, &argv);
     72 
     73 	/* figure out the data block size */
     74 	for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) {
     75 		tfs->bcnt = size(tfs);
     76 		if (blocksize < tfs->bcnt)
     77 			blocksize = tfs->bcnt;
     78 	}
     79 	/* rewrite the rules, do syntax checking */
     80 	for (tfs = fshead; tfs; tfs = tfs->nextfs)
     81 		rewrite(tfs);
     82 
     83 	(void)next(argv);
     84 	display();
     85 	exit(exitval);
     86 }
     87