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Annotation of src/usr.bin/hexdump/conv.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: /*static char sccsid[] = "from: @(#)conv.c     5.4 (Berkeley) 6/1/90";*/
        !            36: static char rcsid[] = "$Id: conv.c,v 1.2 1993/08/01 18:14:50 mycroft Exp $";
        !            37: #endif /* not lint */
        !            38:
        !            39: #include <sys/types.h>
        !            40: #include <ctype.h>
        !            41: #include "hexdump.h"
        !            42:
        !            43: conv_c(pr, p)
        !            44:        PR *pr;
        !            45:        u_char *p;
        !            46: {
        !            47:        extern int deprecated;
        !            48:        char buf[10], *str;
        !            49:
        !            50:        switch(*p) {
        !            51:        case '\0':
        !            52:                str = "\\0";
        !            53:                goto strpr;
        !            54:        /* case '\a': */
        !            55:        case '\007':
        !            56:                if (deprecated)         /* od didn't know about \a */
        !            57:                        break;
        !            58:                str = "\\a";
        !            59:                goto strpr;
        !            60:        case '\b':
        !            61:                str = "\\b";
        !            62:                goto strpr;
        !            63:        case '\f':
        !            64:                str = "\\f";
        !            65:                goto strpr;
        !            66:        case '\n':
        !            67:                str = "\\n";
        !            68:                goto strpr;
        !            69:        case '\r':
        !            70:                str = "\\r";
        !            71:                goto strpr;
        !            72:        case '\t':
        !            73:                str = "\\t";
        !            74:                goto strpr;
        !            75:        case '\v':
        !            76:                if (deprecated)
        !            77:                        break;
        !            78:                str = "\\v";
        !            79:                goto strpr;
        !            80:        default:
        !            81:                break;
        !            82:        }
        !            83:        if (isprint(*p)) {
        !            84:                *pr->cchar = 'c';
        !            85:                (void)printf(pr->fmt, *p);
        !            86:        } else {
        !            87:                (void)sprintf(str = buf, "%03o", (int)*p);
        !            88: strpr:         *pr->cchar = 's';
        !            89:                (void)printf(pr->fmt, str);
        !            90:        }
        !            91: }
        !            92:
        !            93: conv_u(pr, p)
        !            94:        PR *pr;
        !            95:        u_char *p;
        !            96: {
        !            97:        extern int deprecated;
        !            98:        static char *list[] = {
        !            99:                "nul", "soh", "stx", "etx", "eot", "enq", "ack", "bel",
        !           100:                 "bs",  "ht",  "lf",  "vt",  "ff",  "cr",  "so",  "si",
        !           101:                "dle", "dcl", "dc2", "dc3", "dc4", "nak", "syn", "etb",
        !           102:                "can",  "em", "sub", "esc",  "fs",  "gs",  "rs",  "us",
        !           103:        };
        !           104:
        !           105:                                                /* od used nl, not lf */
        !           106:        if (*p <= 0x1f) {
        !           107:                *pr->cchar = 's';
        !           108:                if (deprecated && *p == 0x0a)
        !           109:                        (void)printf(pr->fmt, "nl");
        !           110:                else
        !           111:                        (void)printf(pr->fmt, list[*p]);
        !           112:        } else if (*p == 0x7f) {
        !           113:                *pr->cchar = 's';
        !           114:                (void)printf(pr->fmt, "del");
        !           115:        } else if (deprecated && *p == 0x20) {  /* od replace space with sp */
        !           116:                *pr->cchar = 's';
        !           117:                (void)printf(pr->fmt, " sp");
        !           118:        } else if (isprint(*p)) {
        !           119:                *pr->cchar = 'c';
        !           120:                (void)printf(pr->fmt, *p);
        !           121:        } else {
        !           122:                *pr->cchar = 'x';
        !           123:                (void)printf(pr->fmt, (int)*p);
        !           124:        }
        !           125: }