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Add a new "-r" (right) option that reverses the order a filename and the

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hash is printed.  This aids visual diffs.
This commit is contained in:
David E. O'Brien 1999-11-07 04:14:55 +00:00
parent b1d9984e17
commit 9e18a3bdd2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=52949
2 changed files with 22 additions and 4 deletions
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8
sbin/md5/md5.1
View File

@ -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

18
sbin/md5/md5.c
View File

@ -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.