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Annotation of src/usr.bin/hexdump/hexdump.c, Revision 1.3

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";*/
1.3     ! deraadt    42: static char rcsid[] = "$Id: hexdump.c,v 1.2 1996/05/21 21:51:51 deraadt Exp $";
1.1       deraadt    43: #endif /* not lint */
                     44:
                     45: #include <sys/types.h>
                     46: #include <stdio.h>
1.3     ! deraadt    47: #include <string.h>
1.1       deraadt    48: #include "hexdump.h"
                     49:
                     50: FS *fshead;                            /* head of format strings */
                     51: int blocksize;                         /* data block size */
                     52: int exitval;                           /* final exit value */
                     53: int length = -1;                       /* max bytes to read */
                     54:
                     55: main(argc, argv)
                     56:        int argc;
                     57:        char **argv;
                     58: {
                     59:        register FS *tfs;
1.2       deraadt    60:        char *p;
1.1       deraadt    61:
1.2       deraadt    62:        if (!(p = strrchr(argv[0], 'o')) || strcmp(p, "od"))
1.1       deraadt    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: }