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hexdump.c revision 1.2 
      1 /*
      2  * Copyright (c) 1989 The Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef lint
     35 char copyright[] =
     36 "@(#) Copyright (c) 1989 The Regents of the University of California.\n\
     37  All rights reserved.\n";
     38 #endif /* not lint */
     39 
     40 #ifndef lint
     41 /*static char sccsid[] = "from: @(#)hexdump.c	5.5 (Berkeley) 6/1/90";*/
     42 static char rcsid[] = "$Id: hexdump.c,v 1.2 1993/08/01 18:14:48 mycroft Exp $";
     43 #endif /* not lint */
     44 
     45 #include <sys/types.h>
     46 #include <stdio.h>
     47 #include "hexdump.h"
     48 
     49 FS *fshead;				/* head of format strings */
     50 int blocksize;				/* data block size */
     51 int exitval;				/* final exit value */
     52 int length = -1;			/* max bytes to read */
     53 
     54 main(argc, argv)
     55 	int argc;
     56 	char **argv;
     57 {
     58 	extern int errno;
     59 	register FS *tfs;
     60 	char *p, *rindex();
     61 
     62 	if (!(p = rindex(argv[0], 'o')) || strcmp(p, "od"))
     63 		newsyntax(argc, &argv);
     64 	else
     65 		oldsyntax(argc, &argv);
     66 
     67 	/* figure out the data block size */
     68 	for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) {
     69 		tfs->bcnt = size(tfs);
     70 		if (blocksize < tfs->bcnt)
     71 			blocksize = tfs->bcnt;
     72 	}
     73 	/* rewrite the rules, do syntax checking */
     74 	for (tfs = fshead; tfs; tfs = tfs->nextfs)
     75 		rewrite(tfs);
     76 
     77 	(void)next(argv);
     78 	display();
     79 	exit(exitval);
     80 }
     81