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Annotation of src/usr.bin/hexdump/hexdump.c, Revision 1.15

1.15    ! stsp        1: /*     $OpenBSD: hexdump.c,v 1.14 2010/10/12 17:23:21 millert Exp $    */
1.7       pvalchev    2: /*     $NetBSD: hexdump.c,v 1.7 1997/10/19 02:34:06 lukem Exp $        */
1.4       deraadt     3:
1.1       deraadt     4: /*
1.7       pvalchev    5:  * Copyright (c) 1989, 1993
                      6:  *     The Regents of the University of California.  All rights reserved.
1.1       deraadt     7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
1.9       millert    16:  * 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    17:  *    may be used to endorse or promote products derived from this software
                     18:  *    without specific prior written permission.
                     19:  *
                     20:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     21:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     22:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     23:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     24:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     25:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     26:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     27:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     28:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     29:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     30:  * SUCH DAMAGE.
                     31:  */
                     32:
1.14      millert    33: #include <sys/param.h>
                     34: #include <err.h>
1.15    ! stsp       35: #include <locale.h>
1.1       deraadt    36: #include <stdio.h>
1.11      david      37: #include <stdlib.h>
1.3       deraadt    38: #include <string.h>
1.1       deraadt    39: #include "hexdump.h"
                     40:
                     41: FS *fshead;                            /* head of format strings */
                     42: int blocksize;                         /* data block size */
                     43: int exitval;                           /* final exit value */
1.12      miod       44: long length = -1;                      /* max bytes to read */
1.14      millert    45: char *iobuf;                           /* stdio I/O buffer */
                     46: size_t iobufsiz;                       /* size of stdio I/O buffer */
1.1       deraadt    47:
1.8       millert    48: int    main(int, char **);
1.7       pvalchev   49:
1.5       deraadt    50: int
1.10      deraadt    51: main(int argc, char *argv[])
1.1       deraadt    52: {
1.6       mpech      53:        FS *tfs;
1.2       deraadt    54:        char *p;
1.1       deraadt    55:
1.2       deraadt    56:        if (!(p = strrchr(argv[0], 'o')) || strcmp(p, "od"))
1.1       deraadt    57:                newsyntax(argc, &argv);
                     58:        else
                     59:                oldsyntax(argc, &argv);
                     60:
                     61:        /* figure out the data block size */
                     62:        for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) {
                     63:                tfs->bcnt = size(tfs);
                     64:                if (blocksize < tfs->bcnt)
                     65:                        blocksize = tfs->bcnt;
1.14      millert    66:        }
                     67:        if (length != -1) {
                     68:                iobufsiz = MIN(length, blocksize);
                     69:                if ((iobuf = malloc(iobufsiz)) == NULL)
                     70:                        err(1, NULL);
1.1       deraadt    71:        }
                     72:        /* rewrite the rules, do syntax checking */
                     73:        for (tfs = fshead; tfs; tfs = tfs->nextfs)
                     74:                rewrite(tfs);
                     75:
                     76:        (void)next(argv);
1.15    ! stsp       77:        (void)setlocale(LC_CTYPE, "");
1.1       deraadt    78:        display();
                     79:        exit(exitval);
                     80: }