From 9c150e9d7eeabe6cf2b7ef09b05b30dc27e36190 Mon Sep 17 00:00:00 2001
From: obrien <obrien@FreeBSD.org>
Date: Sun, 7 Nov 1999 04:14:55 +0000
Subject: Add a new "-r" (right) option that reverses the order a filename and
 the hash is printed.  This aids visual diffs.

---
 sbin/md5/md5.1 |  8 +++++++-
 sbin/md5/md5.c | 18 +++++++++++++++---
 2 files changed, 22 insertions(+), 4 deletions(-)

(limited to 'sbin/md5')

diff --git a/sbin/md5/md5.1 b/sbin/md5/md5.1
index 7fb415f..5bf3fc6 100644
--- a/sbin/md5/md5.1
+++ b/sbin/md5/md5.1
@@ -1,3 +1,4 @@
+.\" $FreeBSD$
 .Dd February 14, 1994
 .Dt MD5 1
 .Os
@@ -6,7 +7,7 @@
 .Nd calculate a message-digest fingerprint (checksum) for a file
 .Sh SYNOPSIS
 .Nm md5
-.Op Fl ptx
+.Op Fl prtx
 .Op Fl s Ar string
 .Op Ar file ...
 .Sh DESCRIPTION
@@ -37,6 +38,11 @@ Print a checksum of the given
 .Ar string .
 .It Fl p
 Echo stdin to stdout and appends the MD5 sum to stdout.
+.It Fl r
+Reverses the format of the output.  This helps with visual diffs.  Does nothing
+when combined with the 
+.Fl stpx
+options.
 .It Fl t
 Run a built-in time trial.
 .It Fl x
diff --git a/sbin/md5/md5.c b/sbin/md5/md5.c
index bd1fd6d..4a3daac 100644
--- a/sbin/md5/md5.c
+++ b/sbin/md5/md5.c
@@ -38,6 +38,8 @@ static const char rcsid[] =
 #define TEST_BLOCK_LEN 10000
 #define TEST_BLOCK_COUNT 100000
 
+int rflag;
+
 static void MDString PROTO_LIST((char *));
 static void MDTimeTrial PROTO_LIST((void));
 static void MDTestSuite PROTO_LIST((void));
@@ -63,11 +65,14 @@ main(argc, argv)
 	char	buf[33];
 
 	if (argc > 1) {
-		while ((ch = getopt(argc, argv, "ps:tx")) != -1) {
+		while ((ch = getopt(argc, argv, "ps:rtx")) != -1) {
 			switch (ch) {
 			case 'p':
 				MDFilter(1);
 				break;
+			case 'r':
+				rflag = 1;
+				break;
 			case 's':
 				MDString(optarg);
 				break;
@@ -86,7 +91,11 @@ main(argc, argv)
 			if (!p)
 				warn("%s", argv[optind]);
 			else
-				printf("MD5 (%s) = %s\n", argv[optind], p);
+				if (rflag)
+					printf("MD5 %s  %s\n", p, argv[optind]);
+				else
+					printf("MD5 (%s) = %s\n", argv[optind],
+					    p);
 			optind++;
 		}
 	} else
@@ -104,7 +113,10 @@ MDString(string)
 	size_t len = strlen(string);
 	char buf[33];
 
-	printf("MD5 (\"%s\") = %s\n", string, MD5Data(string, len, buf));
+	if (rflag)
+		printf("MD5 %s (\"%s\")\n", MD5Data(string, len, buf), string);
+	else
+		printf("MD5 (\"%s\") = %s\n", string, MD5Data(string, len, buf));
 }
 /*
  * Measures the time to digest TEST_BLOCK_COUNT TEST_BLOCK_LEN-byte blocks.
-- 
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