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-rw-r--r--text-utils/hexdump.c251
1 files changed, 251 insertions, 0 deletions
diff --git a/text-utils/hexdump.c b/text-utils/hexdump.c
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+++ b/text-utils/hexdump.c
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+/*
+ * 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 Miśkiewicz <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);
+}
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