Initial import of OpenSSH post-2.2.0 snapshot dated 2000-09-09

1 files changed, 84 insertions, 8 deletions

diff --git a/crypto/openssh/authfile.c b/crypto/openssh/authfile.c
index 92740c4..bd6fee0 100644
--- a/crypto/openssh/authfile.c
+++ b/crypto/openssh/authfile.c
@@ -1,21 +1,42 @@
 /*
- *
- * authfile.c
- *
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
- *
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
  *                    All rights reserved
- *
- * Created: Mon Mar 27 03:52:05 1995 ylo
- *
  * This file contains functions for reading and writing identity files, and
  * for reading the passphrase from the user.
  *
+ * As far as I am concerned, the code I have written for this software
+ * can be used freely for any purpose.  Any derived versions of this
+ * software must be clearly marked as such, and if the derived work is
+ * incompatible with the protocol description in the RFC file, it must be
+ * called by a name other than "ssh" or "Secure Shell".
+ *
+ *
+ * Copyright (c) 2000 Markus Friedl.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "includes.h"
-RCSID("$Id: authfile.c,v 1.16 2000/04/26 21:28:32 markus Exp $");
+RCSID("$OpenBSD: authfile.c,v 1.19 2000/09/07 20:27:49 deraadt Exp $");
 
 #include <openssl/bn.h>
 #include <openssl/dsa.h>
@@ -262,6 +283,7 @@ load_public_key_rsa(const char *filename, RSA * pub, char **comment_return)
 	return 1;
 }
 
+/* load public key from private-key file */
 int
 load_public_key(const char *filename, Key * key, char **comment_return)
 {
@@ -491,3 +513,57 @@ load_private_key(const char *filename, const char *passphrase, Key *key,
 	close(fd);
 	return ret;
 }
+
+int
+do_load_public_key(const char *filename, Key *k, char **commentp)
+{
+	FILE *f;
+	unsigned int bits;
+	char line[1024];
+	char *cp;
+
+	f = fopen(filename, "r");
+	if (f != NULL) {
+		while (fgets(line, sizeof(line), f)) {
+			line[sizeof(line)-1] = '\0';
+			cp = line;
+			switch(*cp){
+			case '#':
+			case '\n':
+			case '\0':
+				continue;
+			}
+			/* Skip leading whitespace. */
+			for (; *cp && (*cp == ' ' || *cp == '\t'); cp++)
+				;
+			if (*cp) {
+				bits = key_read(k, &cp);
+				if (bits != 0) {
+					if (commentp)
+						*commentp=xstrdup(filename);
+					fclose(f);
+					return 1;
+				}
+			}
+		}
+		fclose(f);
+	}
+	return 0;
+}
+
+/* load public key from pubkey file */
+int
+try_load_public_key(const char *filename, Key *k, char **commentp)
+{
+	char pub[MAXPATHLEN];
+
+	if (do_load_public_key(filename, k, commentp) == 1)
+		return 1;
+	if (strlcpy(pub, filename, sizeof pub) >= MAXPATHLEN)
+		return 0;
+	if (strlcat(pub, ".pub", sizeof pub) >= MAXPATHLEN)
+		return 0;
+	if (do_load_public_key(pub, k, commentp) == 1)
+		return 1;
+	return 0;
+}