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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 02:42:50 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 02:42:50 +0000 |
commit | 8cb83eee5a58b1fad74c34094ce3afb9e430b5a4 (patch) | |
tree | a9b2e7baeca1be40eb734371e3c8b11b02294497 /text-utils/hexdump.c | |
parent | Initial commit. (diff) | |
download | util-linux-8cb83eee5a58b1fad74c34094ce3afb9e430b5a4.tar.xz util-linux-8cb83eee5a58b1fad74c34094ce3afb9e430b5a4.zip |
Adding upstream version 2.33.1.upstream/2.33.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'text-utils/hexdump.c')
-rw-r--r-- | text-utils/hexdump.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/text-utils/hexdump.c b/text-utils/hexdump.c new file mode 100644 index 0000000..94c53b8 --- /dev/null +++ b/text-utils/hexdump.c @@ -0,0 +1,251 @@ +/* + * Copyright (c) 1989 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 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. + */ + + /* 1999-02-22 Arkadiusz MiĆkiewicz <misiek@pld.ORG.PL> + * - added Native Language Support + */ + +#include <sys/types.h> +#include <unistd.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <err.h> +#include <limits.h> +#include <getopt.h> +#include "hexdump.h" + +#include "list.h" +#include "nls.h" +#include "c.h" +#include "colors.h" +#include "strutils.h" +#include "xalloc.h" +#include "closestream.h" + +void hex_free(struct hexdump *); + +int +parse_args(int argc, char **argv, struct hexdump *hex) +{ + int ch; + int colormode = UL_COLORMODE_UNDEF; + char *hex_offt = "\"%07.7_Ax\n\""; + + + static const struct option longopts[] = { + {"one-byte-octal", no_argument, NULL, 'b'}, + {"one-byte-char", no_argument, NULL, 'c'}, + {"canonical", no_argument, NULL, 'C'}, + {"two-bytes-decimal", no_argument, NULL, 'd'}, + {"two-bytes-octal", no_argument, NULL, 'o'}, + {"two-bytes-hex", no_argument, NULL, 'x'}, + {"format", required_argument, NULL, 'e'}, + {"format-file", required_argument, NULL, 'f'}, + {"color", optional_argument, NULL, 'L'}, + {"length", required_argument, NULL, 'n'}, + {"skip", required_argument, NULL, 's'}, + {"no-squeezing", no_argument, NULL, 'v'}, + {"help", no_argument, NULL, 'h'}, + {"version", no_argument, NULL, 'V'}, + {NULL, no_argument, NULL, 0} + }; + + while ((ch = getopt_long(argc, argv, "bcCde:f:L::n:os:vxhV", longopts, NULL)) != -1) { + switch (ch) { + case 'b': + add_fmt(hex_offt, hex); + add_fmt("\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"", hex); + break; + case 'c': + add_fmt(hex_offt, hex); + add_fmt("\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"", hex); + break; + case 'C': + add_fmt("\"%08.8_Ax\n\"", hex); + add_fmt("\"%08.8_ax \" 8/1 \"%02x \" \" \" 8/1 \"%02x \" ", hex); + add_fmt("\" |\" 16/1 \"%_p\" \"|\\n\"", hex); + break; + case 'd': + add_fmt(hex_offt, hex); + add_fmt("\"%07.7_ax \" 8/2 \" %05u \" \"\\n\"", hex); + break; + case 'e': + add_fmt(optarg, hex); + break; + case 'f': + addfile(optarg, hex); + break; + case 'L': + colormode = UL_COLORMODE_AUTO; + if (optarg) + colormode = colormode_or_err(optarg, + _("unsupported color mode")); + break; + case 'n': + hex->length = strtosize_or_err(optarg, _("failed to parse length")); + break; + case 'o': + add_fmt(hex_offt, hex); + add_fmt("\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"", hex); + break; + case 's': + hex->skip = strtosize_or_err(optarg, _("failed to parse offset")); + break; + case 'v': + vflag = ALL; + break; + case 'x': + add_fmt(hex_offt, hex); + add_fmt("\"%07.7_ax \" 8/2 \" %04x \" \"\\n\"", hex); + break; + case 'h': + usage(); + case 'V': + printf(UTIL_LINUX_VERSION); + exit(EXIT_SUCCESS); + break; + default: + errtryhelp(EXIT_FAILURE); + } + } + + if (list_empty(&hex->fshead)) { + add_fmt(hex_offt, hex); + add_fmt("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"", hex); + } + colors_init (colormode, "hexdump"); + return optind; +} + +void __attribute__((__noreturn__)) usage(void) +{ + FILE *out = stdout; + fputs(USAGE_HEADER, out); + fprintf(out, _(" %s [options] <file>...\n"), program_invocation_short_name); + + fputs(USAGE_SEPARATOR, out); + fputs(_("Display file contents in hexadecimal, decimal, octal, or ascii.\n"), out); + + fputs(USAGE_OPTIONS, out); + fputs(_(" -b, --one-byte-octal one-byte octal display\n"), out); + fputs(_(" -c, --one-byte-char one-byte character display\n"), out); + fputs(_(" -C, --canonical canonical hex+ASCII display\n"), out); + fputs(_(" -d, --two-bytes-decimal two-byte decimal display\n"), out); + fputs(_(" -o, --two-bytes-octal two-byte octal display\n"), out); + fputs(_(" -x, --two-bytes-hex two-byte hexadecimal display\n"), out); + fputs(_(" -L, --color[=<mode>] interpret color formatting specifiers\n"), out); + fprintf(out, + " %s\n", USAGE_COLORS_DEFAULT); + fputs(_(" -e, --format <format> format string to be used for displaying data\n"), out); + fputs(_(" -f, --format-file <file> file that contains format strings\n"), out); + fputs(_(" -n, --length <length> interpret only length bytes of input\n"), out); + fputs(_(" -s, --skip <offset> skip offset bytes from the beginning\n"), out); + fputs(_(" -v, --no-squeezing output identical lines\n"), out); + fputs(USAGE_SEPARATOR, out); + printf(USAGE_HELP_OPTIONS(27)); + printf(USAGE_MAN_TAIL("hexdump(1)")); + + exit(EXIT_SUCCESS); +} + +int main(int argc, char **argv) +{ + struct list_head *p; + struct hexdump_fs *tfs; + int ret; + + struct hexdump *hex = xcalloc(1, sizeof (struct hexdump)); + hex->length = -1; + INIT_LIST_HEAD(&hex->fshead); + + setlocale(LC_ALL, ""); + bindtextdomain(PACKAGE, LOCALEDIR); + textdomain(PACKAGE); + atexit(close_stdout); + + argv += parse_args(argc, argv, hex); + + /* figure out the data block size */ + hex->blocksize = 0; + list_for_each(p, &hex->fshead) { + tfs = list_entry(p, struct hexdump_fs, fslist); + if ((tfs->bcnt = block_size(tfs)) > hex->blocksize) + hex->blocksize = tfs->bcnt; + } + + /* rewrite the rules, do syntax checking */ + list_for_each(p, &hex->fshead) + rewrite_rules(list_entry(p, struct hexdump_fs, fslist), hex); + + next(argv, hex); + display(hex); + + ret = hex->exitval; + hex_free(hex); + + return ret; +} + +void hex_free(struct hexdump *hex) +{ + struct list_head *p, *pn, *q, *qn, *r, *rn, *s, *sn; + struct hexdump_fs *fs; + struct hexdump_fu *fu; + struct hexdump_pr *pr; + struct hexdump_clr *clr; + + list_for_each_safe(p, pn, &hex->fshead) { + fs = list_entry(p, struct hexdump_fs, fslist); + list_for_each_safe(q, qn, &fs->fulist) { + fu = list_entry(q, struct hexdump_fu, fulist); + list_for_each_safe(r, rn, &fu->prlist) { + pr = list_entry(r, struct hexdump_pr, prlist); + if (pr->colorlist) { + list_for_each_safe(s, sn, pr->colorlist) { + clr = list_entry (s, struct hexdump_clr, colorlist); + free(clr->str); + free(clr); + } + } + free(pr->fmt); + free(pr); + } + free(fu->fmt); + free(fu); + } + free(fs); + } + free (hex); +} |