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author | 2021-05-09 14:20:58 -0400 | |
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committer | 2021-05-09 14:20:58 -0400 | |
commit | 5fd83771641d15c418f747bd343ba6738d3875f7 (patch) | |
tree | 5abf0f78f680d9837dbd93d4d4c3933bb7509599 /shell_cmds/hexdump/conv.c | |
download | apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.tar.gz apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.tar.zst apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.zip |
Import macOS userland
adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106
Diffstat (limited to 'shell_cmds/hexdump/conv.c')
-rw-r--r-- | shell_cmds/hexdump/conv.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/shell_cmds/hexdump/conv.c b/shell_cmds/hexdump/conv.c new file mode 100644 index 0000000..9eebc51 --- /dev/null +++ b/shell_cmds/hexdump/conv.c @@ -0,0 +1,178 @@ +/* + * Copyright (c) 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef lint +static const char sccsid[] = "@(#)conv.c 8.1 (Berkeley) 6/6/93"; +#endif /* not lint */ +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/types.h> + +#include <assert.h> +#include <ctype.h> +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <wchar.h> +#include <wctype.h> +#include "hexdump.h" + +void +conv_c(PR *pr, u_char *p, size_t bufsize) +{ + char buf[10]; + char const *str; + wchar_t wc; + size_t clen, oclen; + int converr, pad, width; + u_char peekbuf[MB_LEN_MAX]; + + if (pr->mbleft > 0) { + str = "**"; + pr->mbleft--; + goto strpr; + } + + switch(*p) { + case '\0': + str = "\\0"; + goto strpr; + /* case '\a': */ + case '\007': + str = "\\a"; + goto strpr; + case '\b': + str = "\\b"; + goto strpr; + case '\f': + str = "\\f"; + goto strpr; + case '\n': + str = "\\n"; + goto strpr; + case '\r': + str = "\\r"; + goto strpr; + case '\t': + str = "\\t"; + goto strpr; + case '\v': + str = "\\v"; + goto strpr; + default: + break; + } + /* + * Multibyte characters are disabled for hexdump(1) for backwards + * compatibility and consistency (none of its other output formats + * recognize them correctly). + */ + converr = 0; + if (odmode && MB_CUR_MAX > 1) { + oclen = 0; +retry: + clen = mbrtowc(&wc, (const char *)p, bufsize, &pr->mbstate); + if (clen == 0) + clen = 1; + else if (clen == (size_t)-1 || (clen == (size_t)-2 && + p == peekbuf)) { + memset(&pr->mbstate, 0, sizeof(pr->mbstate)); + wc = *p; + clen = 1; + converr = 1; + } else if (clen == (size_t)-2) { + /* + * Incomplete character; peek ahead and see if we + * can complete it. + */ + oclen = bufsize; + bufsize = peek(p = peekbuf, MB_CUR_MAX); + goto retry; + } + clen += oclen; + } else { + wc = *p; + clen = 1; + } + if (!converr && iswprint(wc)) { + if (!odmode) { + *pr->cchar = 'c'; + (void)printf(pr->fmt, (int)wc); + } else { + *pr->cchar = 'C'; + assert(strcmp(pr->fmt, "%3C") == 0); + width = wcwidth(wc); + assert(width >= 0); + pad = 3 - width; + if (pad < 0) + pad = 0; + (void)printf("%*s%C", pad, "", wc); + pr->mbleft = clen - 1; + } + } else { + (void)sprintf(buf, "%03o", (int)*p); + str = buf; +strpr: *pr->cchar = 's'; + (void)printf(pr->fmt, str); + } +} + +void +conv_u(PR *pr, u_char *p) +{ + static char const * list[] = { + "nul", "soh", "stx", "etx", "eot", "enq", "ack", "bel", + "bs", "ht", "lf", "vt", "ff", "cr", "so", "si", + "dle", "dc1", "dc2", "dc3", "dc4", "nak", "syn", "etb", + "can", "em", "sub", "esc", "fs", "gs", "rs", "us", + }; + + /* od used nl, not lf */ + if (*p <= 0x1f) { + *pr->cchar = 's'; + if (odmode && *p == 0x0a) + (void)printf(pr->fmt, "nl"); + else + (void)printf(pr->fmt, list[*p]); + } else if (*p == 0x7f) { + *pr->cchar = 's'; + (void)printf(pr->fmt, "del"); + } else if (odmode && *p == 0x20) { /* od replaced space with sp */ + *pr->cchar = 's'; + (void)printf(pr->fmt, " sp"); + } else if (isprint(*p)) { + *pr->cchar = 'c'; + (void)printf(pr->fmt, *p); + } else { + *pr->cchar = 'x'; + (void)printf(pr->fmt, (int)*p); + } +} |