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hexsyntax.c revision 1.2 
      1 /*-
      2  * Copyright (c) 1990 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 /*static char sccsid[] = "from: @(#)hexsyntax.c	5.2 (Berkeley) 5/8/90";*/
     36 static char rcsid[] = "$Id: hexsyntax.c,v 1.2 1993/08/01 18:14:47 mycroft Exp $";
     37 #endif /* not lint */
     38 
     39 #include <sys/types.h>
     40 #include <stdio.h>
     41 #include "hexdump.h"
     42 
     43 off_t skip;				/* bytes to skip */
     44 
     45 newsyntax(argc, argvp)
     46 	int argc;
     47 	char ***argvp;
     48 {
     49 	extern enum _vflag vflag;
     50 	extern FS *fshead;
     51 	extern char *optarg;
     52 	extern int length, optind;
     53 	int ch;
     54 	char *p, **argv;
     55 
     56 	argv = *argvp;
     57 	while ((ch = getopt(argc, argv, "bcde:f:n:os:vx")) != EOF)
     58 		switch (ch) {
     59 		case 'b':
     60 			add("\"%07.7_Ax\n\"");
     61 			add("\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"");
     62 			break;
     63 		case 'c':
     64 			add("\"%07.7_Ax\n\"");
     65 			add("\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"");
     66 			break;
     67 		case 'd':
     68 			add("\"%07.7_Ax\n\"");
     69 			add("\"%07.7_ax \" 8/2 \"  %05u \" \"\\n\"");
     70 			break;
     71 		case 'e':
     72 			add(optarg);
     73 			break;
     74 		case 'f':
     75 			addfile(optarg);
     76 			break;
     77 		case 'n':
     78 			if ((length = atoi(optarg)) < 0) {
     79 				(void)fprintf(stderr,
     80 				    "hexdump: bad length value.\n");
     81 				exit(1);
     82 			}
     83 			break;
     84 		case 'o':
     85 			add("\"%07.7_Ax\n\"");
     86 			add("\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"");
     87 			break;
     88 		case 's':
     89 			if ((skip = strtol(optarg, &p, 0)) < 0) {
     90 				(void)fprintf(stderr,
     91 				    "hexdump: bad skip value.\n");
     92 				exit(1);
     93 			}
     94 			switch(*p) {
     95 			case 'b':
     96 				skip *= 512;
     97 				break;
     98 			case 'k':
     99 				skip *= 1024;
    100 				break;
    101 			case 'm':
    102 				skip *= 1048576;
    103 				break;
    104 			}
    105 			break;
    106 		case 'v':
    107 			vflag = ALL;
    108 			break;
    109 		case 'x':
    110 			add("\"%07.7_Ax\n\"");
    111 			add("\"%07.7_ax \" 8/2 \"   %04x \" \"\\n\"");
    112 			break;
    113 		case '?':
    114 			usage();
    115 			exit(1);
    116 		}
    117 
    118 	if (!fshead) {
    119 		add("\"%07.7_Ax\n\"");
    120 		add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
    121 	}
    122 
    123 	*argvp += optind;
    124 }
    125 
    126 usage()
    127 {
    128 	(void)fprintf(stderr,
    129 "hexdump: [-bcdovx] [-e fmt] [-f fmt_file] [-n length] [-s skip] [file ...]\n");
    130 	exit(1);
    131 }
    132