- djm@cvs.openbsd.org 2008/05/19 15:46:31

     [ssh-keygen.c]
     support -l (print fingerprint) in combination with -F (find host) to
     search for a host in ~/.ssh/known_hosts and display its fingerprint;
     ok markus@

2 files changed, 29 insertions, 8 deletions

diff --git a/ChangeLog b/ChangeLog
index 0695b672a..1b2e5d8a9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -11,6 +11,11 @@
      we would send the modes corresponding to a zeroed struct termios,
      whereas we should have been sending an empty list of modes.
      Based on patch from daniel.ritz AT alcatel.ch; ok dtucker@ markus@
+   - djm@cvs.openbsd.org 2008/05/19 15:46:31
+     [ssh-keygen.c]
+     support -l (print fingerprint) in combination with -F (find host) to
+     search for a host in ~/.ssh/known_hosts and display its fingerprint;
+     ok markus@
 
 20080604
  - (djm) [openbsd-compat/bsd-arc4random.c] Fix math bug that caused bias
@@ -4042,4 +4047,4 @@
    OpenServer 6 and add osr5bigcrypt support so when someone migrates
    passwords between UnixWare and OpenServer they will still work. OK dtucker@
 
-$Id: ChangeLog,v 1.4940 2008/06/08 02:53:20 dtucker Exp $
+$Id: ChangeLog,v 1.4941 2008/06/08 02:54:29 dtucker Exp $
diff --git a/ssh-keygen.c b/ssh-keygen.c
index 69b16e6f5..a03c6575d 100644
--- a/ssh-keygen.c
+++ b/ssh-keygen.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh-keygen.c,v 1.165 2008/01/19 22:37:19 djm Exp $ */
+/* $OpenBSD: ssh-keygen.c,v 1.166 2008/05/19 15:46:31 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1994 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -600,12 +600,24 @@ do_fingerprint(struct passwd *pw)
 static void
 print_host(FILE *f, const char *name, Key *public, int hash)
 {
-        if (hash && (name = host_hash(name, NULL, 0)) == NULL)
-                fatal("hash_host failed");
-        fprintf(f, "%s ", name);
-        if (!key_write(public, f))
-                fatal("key_write failed");
-        fprintf(f, "\n");
+        if (print_fingerprint) {
+                enum fp_rep rep;
+                enum fp_type fptype;
+                char *fp;
+
+                fptype = print_bubblebabble ? SSH_FP_SHA1 : SSH_FP_MD5;
+                rep =    print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_HEX;
+                fp = key_fingerprint(public, fptype, rep);
+                printf("%u %s %s\n", key_size(public), fp, name);
+                xfree(fp);
+        } else {
+                if (hash && (name = host_hash(name, NULL, 0)) == NULL)
+                        fatal("hash_host failed");
+                fprintf(f, "%s ", name);
+                if (!key_write(public, f))
+                        fatal("key_write failed");
+                fprintf(f, "\n");
+        }
 }
 
 static void
@@ -1231,6 +1243,10 @@ main(int argc, char **argv)
                 printf("Can only have one of -p and -c.\n");
                 usage();
         }
+        if (print_fingerprint && (delete_host || hash_hosts)) {
+                printf("Cannot use -l with -D or -R.\n");
+                usage();
+        }
         if (delete_host || hash_hosts || find_host)
                 do_known_hosts(pw, rr_hostname);
         if (print_fingerprint || print_bubblebabble)