18a16b7a1SPedro F. Giffuni /*-
28a16b7a1SPedro F. Giffuni * SPDX-License-Identifier: BSD-3-Clause
38a16b7a1SPedro F. Giffuni *
49b50d902SRodney W. Grimes * Copyright (c) 1989, 1993
59b50d902SRodney W. Grimes * The Regents of the University of California. All rights reserved.
69b50d902SRodney W. Grimes *
79b50d902SRodney W. Grimes * Redistribution and use in source and binary forms, with or without
89b50d902SRodney W. Grimes * modification, are permitted provided that the following conditions
99b50d902SRodney W. Grimes * are met:
109b50d902SRodney W. Grimes * 1. Redistributions of source code must retain the above copyright
119b50d902SRodney W. Grimes * notice, this list of conditions and the following disclaimer.
129b50d902SRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright
139b50d902SRodney W. Grimes * notice, this list of conditions and the following disclaimer in the
149b50d902SRodney W. Grimes * documentation and/or other materials provided with the distribution.
15fbbd9655SWarner Losh * 3. Neither the name of the University nor the names of its contributors
169b50d902SRodney W. Grimes * may be used to endorse or promote products derived from this software
179b50d902SRodney W. Grimes * without specific prior written permission.
189b50d902SRodney W. Grimes *
199b50d902SRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
209b50d902SRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
219b50d902SRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
229b50d902SRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
239b50d902SRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
249b50d902SRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
259b50d902SRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
269b50d902SRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
279b50d902SRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
289b50d902SRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
299b50d902SRodney W. Grimes * SUCH DAMAGE.
309b50d902SRodney W. Grimes */
319b50d902SRodney W. Grimes
329b50d902SRodney W. Grimes #include <sys/types.h>
339b50d902SRodney W. Grimes
3440ccfb31STim J. Robbins #include <assert.h>
359b50d902SRodney W. Grimes #include <ctype.h>
3640ccfb31STim J. Robbins #include <limits.h>
377eaedc0cSJohan Karlsson #include <stdio.h>
3840ccfb31STim J. Robbins #include <stdlib.h>
397eaedc0cSJohan Karlsson #include <string.h>
4040ccfb31STim J. Robbins #include <wchar.h>
4140ccfb31STim J. Robbins #include <wctype.h>
429b50d902SRodney W. Grimes #include "hexdump.h"
439b50d902SRodney W. Grimes
449b50d902SRodney W. Grimes void
conv_c(PR * pr,u_char * p,size_t bufsize)4540ccfb31STim J. Robbins conv_c(PR *pr, u_char *p, size_t bufsize)
469b50d902SRodney W. Grimes {
4795e5dc04SDavid E. O'Brien char buf[10];
4895e5dc04SDavid E. O'Brien char const *str;
4940ccfb31STim J. Robbins wchar_t wc;
5040ccfb31STim J. Robbins size_t clen, oclen;
5140ccfb31STim J. Robbins int converr, pad, width;
527818f8dfSDimitry Andric u_char peekbuf[MB_LEN_MAX];
536bb76493SKyle Evans u_char *op;
5440ccfb31STim J. Robbins
55*08c80489SLi-Wen Hsu op = NULL;
56*08c80489SLi-Wen Hsu
5740ccfb31STim J. Robbins if (pr->mbleft > 0) {
5840ccfb31STim J. Robbins str = "**";
5940ccfb31STim J. Robbins pr->mbleft--;
6040ccfb31STim J. Robbins goto strpr;
6140ccfb31STim J. Robbins }
629b50d902SRodney W. Grimes
639b50d902SRodney W. Grimes switch(*p) {
649b50d902SRodney W. Grimes case '\0':
6595e5dc04SDavid E. O'Brien str = "\\0";
669b50d902SRodney W. Grimes goto strpr;
679b50d902SRodney W. Grimes /* case '\a': */
689b50d902SRodney W. Grimes case '\007':
6995e5dc04SDavid E. O'Brien str = "\\a";
709b50d902SRodney W. Grimes goto strpr;
719b50d902SRodney W. Grimes case '\b':
7295e5dc04SDavid E. O'Brien str = "\\b";
739b50d902SRodney W. Grimes goto strpr;
749b50d902SRodney W. Grimes case '\f':
7595e5dc04SDavid E. O'Brien str = "\\f";
769b50d902SRodney W. Grimes goto strpr;
779b50d902SRodney W. Grimes case '\n':
7895e5dc04SDavid E. O'Brien str = "\\n";
799b50d902SRodney W. Grimes goto strpr;
809b50d902SRodney W. Grimes case '\r':
8195e5dc04SDavid E. O'Brien str = "\\r";
829b50d902SRodney W. Grimes goto strpr;
839b50d902SRodney W. Grimes case '\t':
8495e5dc04SDavid E. O'Brien str = "\\t";
859b50d902SRodney W. Grimes goto strpr;
869b50d902SRodney W. Grimes case '\v':
8795e5dc04SDavid E. O'Brien str = "\\v";
889b50d902SRodney W. Grimes goto strpr;
899b50d902SRodney W. Grimes default:
909b50d902SRodney W. Grimes break;
919b50d902SRodney W. Grimes }
9240ccfb31STim J. Robbins /*
9340ccfb31STim J. Robbins * Multibyte characters are disabled for hexdump(1) for backwards
9440ccfb31STim J. Robbins * compatibility and consistency (none of its other output formats
9540ccfb31STim J. Robbins * recognize them correctly).
9640ccfb31STim J. Robbins */
9740ccfb31STim J. Robbins converr = 0;
9840ccfb31STim J. Robbins if (odmode && MB_CUR_MAX > 1) {
9940ccfb31STim J. Robbins oclen = 0;
10040ccfb31STim J. Robbins retry:
10140ccfb31STim J. Robbins clen = mbrtowc(&wc, p, bufsize, &pr->mbstate);
10240ccfb31STim J. Robbins if (clen == 0)
10340ccfb31STim J. Robbins clen = 1;
10440ccfb31STim J. Robbins else if (clen == (size_t)-1 || (clen == (size_t)-2 &&
1057818f8dfSDimitry Andric p == peekbuf)) {
10640ccfb31STim J. Robbins memset(&pr->mbstate, 0, sizeof(pr->mbstate));
1076bb76493SKyle Evans if (p == peekbuf) {
1086bb76493SKyle Evans /*
1096bb76493SKyle Evans * We peeked ahead, but that didn't help --
1106bb76493SKyle Evans * we either got an illegal sequence or still
1116bb76493SKyle Evans * can't complete; restore original character.
1126bb76493SKyle Evans */
1136bb76493SKyle Evans oclen = 0;
1146bb76493SKyle Evans p = op;
1156bb76493SKyle Evans }
11640ccfb31STim J. Robbins wc = *p;
11740ccfb31STim J. Robbins clen = 1;
11840ccfb31STim J. Robbins converr = 1;
11940ccfb31STim J. Robbins } else if (clen == (size_t)-2) {
12040ccfb31STim J. Robbins /*
12140ccfb31STim J. Robbins * Incomplete character; peek ahead and see if we
12240ccfb31STim J. Robbins * can complete it.
12340ccfb31STim J. Robbins */
12440ccfb31STim J. Robbins oclen = bufsize;
1256bb76493SKyle Evans op = p;
12640ccfb31STim J. Robbins bufsize = peek(p = peekbuf, MB_CUR_MAX);
12740ccfb31STim J. Robbins goto retry;
12840ccfb31STim J. Robbins }
12940ccfb31STim J. Robbins clen += oclen;
13040ccfb31STim J. Robbins } else {
13140ccfb31STim J. Robbins wc = *p;
13240ccfb31STim J. Robbins clen = 1;
13340ccfb31STim J. Robbins }
13440ccfb31STim J. Robbins if (!converr && iswprint(wc)) {
13540ccfb31STim J. Robbins if (!odmode) {
1369b50d902SRodney W. Grimes *pr->cchar = 'c';
13740ccfb31STim J. Robbins (void)printf(pr->fmt, (int)wc);
13840ccfb31STim J. Robbins } else {
13940ccfb31STim J. Robbins *pr->cchar = 'C';
14040ccfb31STim J. Robbins assert(strcmp(pr->fmt, "%3C") == 0);
14140ccfb31STim J. Robbins width = wcwidth(wc);
1421ae99265SJoseph Koshy assert(width >= 0);
14340ccfb31STim J. Robbins pad = 3 - width;
14440ccfb31STim J. Robbins if (pad < 0)
14540ccfb31STim J. Robbins pad = 0;
14640ccfb31STim J. Robbins (void)printf("%*s%C", pad, "", wc);
14740ccfb31STim J. Robbins pr->mbleft = clen - 1;
14840ccfb31STim J. Robbins }
1499b50d902SRodney W. Grimes } else {
15095e5dc04SDavid E. O'Brien (void)sprintf(buf, "%03o", (int)*p);
15195e5dc04SDavid E. O'Brien str = buf;
1529b50d902SRodney W. Grimes strpr: *pr->cchar = 's';
1539b50d902SRodney W. Grimes (void)printf(pr->fmt, str);
1549b50d902SRodney W. Grimes }
1559b50d902SRodney W. Grimes }
1569b50d902SRodney W. Grimes
1579b50d902SRodney W. Grimes void
conv_u(PR * pr,u_char * p)158f4ac32deSDavid Malone conv_u(PR *pr, u_char *p)
1599b50d902SRodney W. Grimes {
16095e5dc04SDavid E. O'Brien static char const * list[] = {
1619b50d902SRodney W. Grimes "nul", "soh", "stx", "etx", "eot", "enq", "ack", "bel",
1629b50d902SRodney W. Grimes "bs", "ht", "lf", "vt", "ff", "cr", "so", "si",
16324029986SEitan Adler "dle", "dc1", "dc2", "dc3", "dc4", "nak", "syn", "etb",
1649b50d902SRodney W. Grimes "can", "em", "sub", "esc", "fs", "gs", "rs", "us",
1659b50d902SRodney W. Grimes };
1669b50d902SRodney W. Grimes
1679b50d902SRodney W. Grimes /* od used nl, not lf */
1689b50d902SRodney W. Grimes if (*p <= 0x1f) {
1699b50d902SRodney W. Grimes *pr->cchar = 's';
170ca9cbcecSTim J. Robbins if (odmode && *p == 0x0a)
1719b50d902SRodney W. Grimes (void)printf(pr->fmt, "nl");
1729b50d902SRodney W. Grimes else
1739b50d902SRodney W. Grimes (void)printf(pr->fmt, list[*p]);
1749b50d902SRodney W. Grimes } else if (*p == 0x7f) {
1759b50d902SRodney W. Grimes *pr->cchar = 's';
1769b50d902SRodney W. Grimes (void)printf(pr->fmt, "del");
177ca9cbcecSTim J. Robbins } else if (odmode && *p == 0x20) { /* od replaced space with sp */
1789b50d902SRodney W. Grimes *pr->cchar = 's';
1799b50d902SRodney W. Grimes (void)printf(pr->fmt, " sp");
1809b50d902SRodney W. Grimes } else if (isprint(*p)) {
1819b50d902SRodney W. Grimes *pr->cchar = 'c';
1829b50d902SRodney W. Grimes (void)printf(pr->fmt, *p);
1839b50d902SRodney W. Grimes } else {
1849b50d902SRodney W. Grimes *pr->cchar = 'x';
1859b50d902SRodney W. Grimes (void)printf(pr->fmt, (int)*p);
1869b50d902SRodney W. Grimes }
1879b50d902SRodney W. Grimes }
188