use btree instead of hashing, don't have to resort later

[unix-history] / usr / src / usr.bin / hexdump / hexsyntax.c

/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*/

#ifndef lint
static char sccsid[] = "@(#)hexsyntax.c 5.2 (Berkeley) %G%";
#endif /* not lint */

#include <sys/types.h>
#include <stdio.h>
#include "hexdump.h"

off_t skip;                             /* bytes to skip */

newsyntax(argc, argvp)
       int argc;
       char ***argvp;
{
       extern enum _vflag vflag;
       extern FS *fshead;
       extern char *optarg;
       extern int length, optind;
       int ch;
       char *p, **argv;

       argv = *argvp;
       while ((ch = getopt(argc, argv, "bcde:f:n:os:vx")) != EOF)
               switch (ch) {
               case 'b':
                       add("\"%07.7_Ax\n\"");
                       add("\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"");
                       break;
               case 'c':
                       add("\"%07.7_Ax\n\"");
                       add("\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"");
                       break;
               case 'd':
                       add("\"%07.7_Ax\n\"");
                       add("\"%07.7_ax \" 8/2 \"  %05u \" \"\\n\"");
                       break;
               case 'e':
                       add(optarg);
                       break;
               case 'f':
                       addfile(optarg);
                       break;
               case 'n':
                       if ((length = atoi(optarg)) < 0) {
                               (void)fprintf(stderr,
                                   "hexdump: bad length value.\n");
                               exit(1);
                       }
                       break;
               case 'o':
                       add("\"%07.7_Ax\n\"");
                       add("\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"");
                       break;
               case 's':
                       if ((skip = strtol(optarg, &p, 0)) < 0) {
                               (void)fprintf(stderr,
                                   "hexdump: bad skip value.\n");
                               exit(1);
                       }
                       switch(*p) {
                       case 'b':
                               skip *= 512;
                               break;
                       case 'k':
                               skip *= 1024;
                               break;
                       case 'm':
                               skip *= 1048576;
                               break;
                       }
                       break;
               case 'v':
                       vflag = ALL;
                       break;
               case 'x':
                       add("\"%07.7_Ax\n\"");
                       add("\"%07.7_ax \" 8/2 \"   %04x \" \"\\n\"");
                       break;
               case '?':
                       usage();
                       exit(1);
               }

       if (!fshead) {
               add("\"%07.7_Ax\n\"");
               add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
       }

       *argvp += optind;
}

usage()
{
       (void)fprintf(stderr,
"hexdump: [-bcdovx] [-e fmt] [-f fmt_file] [-n length] [-s skip] [file ...]\n");
       exit(1);
}