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Annotation of src/usr.bin/hexdump/hexdump.c, Revision 1.5

1.5     ! deraadt     1: /*     $OpenBSD: hexdump.c,v 1.4 1996/06/26 05:34:18 deraadt Exp $     */
1.4       deraadt     2:
1.1       deraadt     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: /*static char sccsid[] = "from: @(#)hexdump.c  5.5 (Berkeley) 6/1/90";*/
1.5     ! deraadt    44: static char rcsid[] = "$OpenBSD: hexdump.c,v 1.4 1996/06/26 05:34:18 deraadt Exp $";
1.1       deraadt    45: #endif /* not lint */
                     46:
                     47: #include <sys/types.h>
                     48: #include <stdio.h>
1.3       deraadt    49: #include <string.h>
1.1       deraadt    50: #include "hexdump.h"
                     51:
                     52: FS *fshead;                            /* head of format strings */
                     53: int blocksize;                         /* data block size */
                     54: int exitval;                           /* final exit value */
                     55: int length = -1;                       /* max bytes to read */
                     56:
1.5     ! deraadt    57: int
1.1       deraadt    58: main(argc, argv)
                     59:        int argc;
                     60:        char **argv;
                     61: {
                     62:        register FS *tfs;
1.2       deraadt    63:        char *p;
1.1       deraadt    64:
1.2       deraadt    65:        if (!(p = strrchr(argv[0], 'o')) || strcmp(p, "od"))
1.1       deraadt    66:                newsyntax(argc, &argv);
                     67:        else
                     68:                oldsyntax(argc, &argv);
                     69:
                     70:        /* figure out the data block size */
                     71:        for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) {
                     72:                tfs->bcnt = size(tfs);
                     73:                if (blocksize < tfs->bcnt)
                     74:                        blocksize = tfs->bcnt;
                     75:        }
                     76:        /* rewrite the rules, do syntax checking */
                     77:        for (tfs = fshead; tfs; tfs = tfs->nextfs)
                     78:                rewrite(tfs);
                     79:
                     80:        (void)next(argv);
                     81:        display();
                     82:        exit(exitval);
                     83: }