--- /dev/null
+diff -up openssh-5.6p1/ssh-keygen.0.keygen openssh-5.6p1/ssh-keygen.0
+--- openssh-5.6p1/ssh-keygen.0.keygen 2010-08-22 16:30:03.000000000 +0200
++++ openssh-5.6p1/ssh-keygen.0 2010-08-23 12:37:19.000000000 +0200
+@@ -4,7 +4,7 @@ NAME
+ ssh-keygen - authentication key generation, management and conversion
+
+ SYNOPSIS
+- ssh-keygen [-q] [-b bits] -t type [-N new_passphrase] [-C comment]
++ ssh-keygen [-q] [-o] [-b bits] -t type [-N new_passphrase] [-C comment]
+ [-f output_keyfile]
+ ssh-keygen -p [-P old_passphrase] [-N new_passphrase] [-f keyfile]
+ ssh-keygen -i [-m key_format] [-f input_keyfile]
+@@ -232,6 +232,8 @@ DESCRIPTION
+
+ -q Silence ssh-keygen. Used by /etc/rc when creating a new key.
+
++ -o Overwrite the key without prompting user.
++
+ -R hostname
+ Removes all keys belonging to hostname from a known_hosts file.
+ This option is useful to delete hashed hosts (see the -H option
+diff -up openssh-5.6p1/ssh-keygen.1.keygen openssh-5.6p1/ssh-keygen.1
+--- openssh-5.6p1/ssh-keygen.1.keygen 2010-08-05 05:05:32.000000000 +0200
++++ openssh-5.6p1/ssh-keygen.1 2010-08-23 12:36:25.000000000 +0200
+@@ -47,6 +47,7 @@
+ .Bk -words
+ .Nm ssh-keygen
+ .Op Fl q
++.Op Fl o
+ .Op Fl b Ar bits
+ .Fl t Ar type
+ .Op Fl N Ar new_passphrase
+@@ -397,6 +398,8 @@ Silence
+ Used by
+ .Pa /etc/rc
+ when creating a new key.
++.It Fl o
++Overwrite the key without prompting user.
+ .It Fl R Ar hostname
+ Removes all keys belonging to
+ .Ar hostname
+diff -up openssh-5.6p1/ssh-keygen.c.keygen openssh-5.6p1/ssh-keygen.c
+--- openssh-5.6p1/ssh-keygen.c.keygen 2010-08-05 05:05:32.000000000 +0200
++++ openssh-5.6p1/ssh-keygen.c 2010-08-23 12:34:40.000000000 +0200
+@@ -72,6 +72,7 @@ int change_passphrase = 0;
+ int change_comment = 0;
+
+ int quiet = 0;
++int overwrite = 0;
+
+ int log_level = SYSLOG_LEVEL_INFO;
+
+@@ -1798,7 +1799,7 @@ main(int argc, char **argv)
+ exit(1);
+ }
+
+- while ((opt = getopt(argc, argv, "degiqpclBHLhvxXyF:b:f:t:D:I:P:m:N:n:"
++ while ((opt = getopt(argc, argv, "degiqopclBHLhvxXyF:b:f:t:D:I:P:m:N:n:"
+ "O:C:r:g:R:T:G:M:S:s:a:V:W:z:")) != -1) {
+ switch (opt) {
+ case 'b':
+@@ -1878,6 +1879,9 @@ main(int argc, char **argv)
+ case 'q':
+ quiet = 1;
+ break;
++ case 'o':
++ overwrite = 1;
++ break;
+ case 'e':
+ case 'x':
+ /* export key */
+@@ -2124,7 +2128,7 @@ main(int argc, char **argv)
+ }
+ }
+ /* If the file already exists, ask the user to confirm. */
+- if (stat(identity_file, &st) >= 0) {
++ if (!overwrite && stat(identity_file, &st) >= 0) {
+ char yesno[3];
+ printf("%s already exists.\n", identity_file);
+ printf("Overwrite (y/n)? ");