hexdump: Merge hexsyntax.c into hexdump.c

Signed-off-by: Ondrej Oprala <ooprala@redhat.com>

1 files changed, 116 insertions, 1 deletions

diff --git a/text-utils/hexdump.c b/text-utils/hexdump.c
index 8c9b119b9..989088e5e 100644
--- a/text-utils/hexdump.c
+++ b/text-utils/hexdump.c
@@ -36,14 +36,20 @@
   */
 
 #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 "strutils.h"
 #include "closestream.h"
 
 struct list_head fshead;				/* head of format strings */
@@ -52,6 +58,115 @@ int exitval;				/* final exit value */
 ssize_t length = -1;			/* max bytes to read */
 void hex_free(void);
 
+off_t skip;				/* bytes to skip */
+
+int
+parse_args(int argc, char **argv)
+{
+	int ch;
+	char *hex_offt = "\"%07.7_Ax\n\"";
+
+	static const struct option longopts[] = {
+		{"one-byte-octal", no_argument, NULL, 'b'},
+		{"one-byte-char", required_argument, NULL, 'c'},
+		{"canonical", required_argument, NULL, 'C'},
+		{"two-bytes-decimal", no_argument, NULL, 'd'},
+		{"two-bytes-octal", required_argument, NULL, 'o'},
+		{"two-bytes-hex", no_argument, NULL, 'x'},
+		{"format", required_argument, NULL, 'e'},
+		{"format-file", required_argument, NULL, 'f'},
+		{"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(hex_offt);
+			add("\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"");
+			break;
+		case 'c':
+			add(hex_offt);
+			add("\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"");
+			break;
+		case 'C':
+			add("\"%08.8_Ax\n\"");
+			add("\"%08.8_ax  \" 8/1 \"%02x \" \"  \" 8/1 \"%02x \" ");
+			add("\"  |\" 16/1 \"%_p\" \"|\\n\"");
+			break;
+		case 'd':
+			add(hex_offt);
+			add("\"%07.7_ax \" 8/2 \"  %05u \" \"\\n\"");
+			break;
+		case 'e':
+			add(optarg);
+			break;
+		case 'f':
+			addfile(optarg);
+			break;
+		case 'n':
+			length = strtosize_or_err(optarg, _("failed to parse length"));
+			break;
+		case 'o':
+			add(hex_offt);
+			add("\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"");
+			break;
+		case 's':
+			skip = strtosize_or_err(optarg, _("failed to parse offset"));
+			break;
+		case 'v':
+			vflag = ALL;
+			break;
+		case 'x':
+			add(hex_offt);
+			add("\"%07.7_ax \" 8/2 \"   %04x \" \"\\n\"");
+			break;
+		case 'h':
+			usage(stdout);
+		case 'V':
+			printf(UTIL_LINUX_VERSION);
+			exit(EXIT_SUCCESS);
+			break;
+		default:
+			usage(stderr);
+		}
+	}
+
+	if (list_empty(&fshead)) {
+		add(hex_offt);
+		add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
+	}
+	return optind;
+}
+
+void __attribute__((__noreturn__)) usage(FILE *out)
+{
+	fputs(USAGE_HEADER, out);
+	fprintf(out, _(" %s [options] <file>...\n"), program_invocation_short_name);
+	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(_(" -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);
+	fputs(USAGE_HELP, out);
+	fputs(USAGE_VERSION, out);
+	fprintf(out, USAGE_MAN_TAIL("hexdump(1)"));
+
+	exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
+}
+
 int main(int argc, char **argv)
 {
 	struct list_head *p;
@@ -65,7 +180,7 @@ int main(int argc, char **argv)
 	atexit(close_stdout);
 
 	if (!(c = strrchr(argv[0], 'o')) || strcmp(c, "od")) {
-		argv += newsyntax(argc, argv);
+		argv += parse_args(argc, argv);
 	} else
 		errx(EXIT_FAILURE, _("calling hexdump as od has been deprecated "
 				     "in favour to GNU coreutils od."));