- djm@cvs.openbsd.org 2012/12/02 20:42:15

     [ssh-add.1 ssh-add.c]
     make deleting explicit keys "ssh-add -d" symmetric with adding keys -
     try to delete the corresponding certificate too and respect the -k option
     to allow deleting of the key only; feedback and ok markus@

1 files changed, 31 insertions, 7 deletions

diff --git a/ssh-add.c b/ssh-add.c
index 738644d2..c8936e5a 100644
--- a/ssh-add.c
+++ b/ssh-add.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh-add.c,v 1.103 2011/10/18 23:37:42 djm Exp $ */
+/* $OpenBSD: ssh-add.c,v 1.104 2012/12/02 20:42:15 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -96,10 +96,10 @@ clear_pass(void)
 }
 
 static int
-delete_file(AuthenticationConnection *ac, const char *filename)
+delete_file(AuthenticationConnection *ac, const char *filename, int key_only)
 {
-	Key *public;
-	char *comment = NULL;
+	Key *public = NULL, *cert = NULL;
+	char *certpath = NULL, *comment = NULL;
 	int ret = -1;
 
 	public = key_load_public(filename, &comment);
@@ -113,8 +113,32 @@ delete_file(AuthenticationConnection *ac, const char *filename)
 	} else
 		fprintf(stderr, "Could not remove identity: %s\n", filename);
 
-	key_free(public);
-	xfree(comment);
+	if (key_only)
+		goto out;
+
+	/* Now try to delete the corresponding certificate too */
+	free(comment);
+	xasprintf(&certpath, "%s-cert.pub", filename);
+	if ((cert = key_load_public(certpath, &comment)) == NULL)
+		goto out;
+	if (!key_equal_public(cert, public))
+		fatal("Certificate %s does not match private key %s",
+		    certpath, filename);
+
+	if (ssh_remove_identity(ac, cert)) {
+		fprintf(stderr, "Identity removed: %s (%s)\n", certpath,
+		    comment);
+		ret = 0;
+	} else
+		fprintf(stderr, "Could not remove identity: %s\n", certpath);
+
+ out:
+	if (cert != NULL)
+		key_free(cert);
+	if (public != NULL)
+		key_free(public);
+	free(certpath);
+	free(comment);
 
 	return ret;
 }
@@ -354,7 +378,7 @@ static int
 do_file(AuthenticationConnection *ac, int deleting, int key_only, char *file)
 {
 	if (deleting) {
-		if (delete_file(ac, file) == -1)
+		if (delete_file(ac, file, key_only) == -1)
 			return -1;
 	} else {
 		if (add_file(ac, file, key_only) == -1)