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Annotation of src/usr.bin/hexdump/hexdump.c, Revision 1.1

1.1     ! deraadt     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: }