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hexdump.c revision 1.1 
      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[] = "@(#)hexdump.c	5.5 (Berkeley) 6/1/90";
     42 #endif /* not lint */
     43 
     44 #include <sys/types.h>
     45 #include <stdio.h>
     46 #include "hexdump.h"
     47 
     48 FS *fshead;				/* head of format strings */
     49 int blocksize;				/* data block size */
     50 int exitval;				/* final exit value */
     51 int length = -1;			/* max bytes to read */
     52 
     53 main(argc, argv)
     54 	int argc;
     55 	char **argv;
     56 {
     57 	extern int errno;
     58 	register FS *tfs;
     59 	char *p, *rindex();
     60 
     61 	if (!(p = rindex(argv[0], 'o')) || strcmp(p, "od"))
     62 		newsyntax(argc, &argv);
     63 	else
     64 		oldsyntax(argc, &argv);
     65 
     66 	/* figure out the data block size */
     67 	for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) {
     68 		tfs->bcnt = size(tfs);
     69 		if (blocksize < tfs->bcnt)
     70 			blocksize = tfs->bcnt;
     71 	}
     72 	/* rewrite the rules, do syntax checking */
     73 	for (tfs = fshead; tfs; tfs = tfs->nextfs)
     74 		rewrite(tfs);
     75 
     76 	(void)next(argv);
     77 	display();
     78 	exit(exitval);
     79 }
     80