1 files changed, 112 insertions, 0 deletions

diff --git a/src/lib/libcrypto/asn1/x_req.c b/src/lib/libcrypto/asn1/x_req.c
new file mode 100644
index 0000000000..59ca8ce329
--- /dev/null
+++ b/src/lib/libcrypto/asn1/x_req.c
@@ -0,0 +1,112 @@
+/* crypto/asn1/x_req.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * 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 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 OR CONTRIBUTORS 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.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/asn1t.h>
+#include <openssl/x509.h>
+
+/* X509_REQ_INFO is handled in an unusual way to get round
+ * invalid encodings. Some broken certificate requests don't
+ * encode the attributes field if it is empty. This is in
+ * violation of PKCS#10 but we need to tolerate it. We do
+ * this by making the attributes field OPTIONAL then using
+ * the callback to initialise it to an empty STACK. 
+ *
+ * This means that the field will be correctly encoded unless
+ * we NULL out the field.
+ *
+ * As a result we no longer need the req_kludge field because
+ * the information is now contained in the attributes field:
+ * 1. If it is NULL then it's the invalid omission.
+ * 2. If it is empty it is the correct encoding.
+ * 3. If it is not empty then some attributes are present.
+ *
+ */
+
+static int rinf_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+        X509_REQ_INFO *rinf = (X509_REQ_INFO *)*pval;
+
+        if(operation == ASN1_OP_NEW_POST) {
+                rinf->attributes = sk_X509_ATTRIBUTE_new_null();
+                if(!rinf->attributes) return 0;
+        }
+        return 1;
+}
+
+ASN1_SEQUENCE_enc(X509_REQ_INFO, enc, rinf_cb) = {
+        ASN1_SIMPLE(X509_REQ_INFO, version, ASN1_INTEGER),
+        ASN1_SIMPLE(X509_REQ_INFO, subject, X509_NAME),
+        ASN1_SIMPLE(X509_REQ_INFO, pubkey, X509_PUBKEY),
+        /* This isn't really OPTIONAL but it gets round invalid
+         * encodings
+         */
+        ASN1_IMP_SET_OF_OPT(X509_REQ_INFO, attributes, X509_ATTRIBUTE, 0)
+} ASN1_SEQUENCE_END_enc(X509_REQ_INFO, X509_REQ_INFO)
+
+IMPLEMENT_ASN1_FUNCTIONS(X509_REQ_INFO)
+
+ASN1_SEQUENCE_ref(X509_REQ, 0, CRYPTO_LOCK_X509_REQ) = {
+        ASN1_SIMPLE(X509_REQ, req_info, X509_REQ_INFO),
+        ASN1_SIMPLE(X509_REQ, sig_alg, X509_ALGOR),
+        ASN1_SIMPLE(X509_REQ, signature, ASN1_BIT_STRING)
+} ASN1_SEQUENCE_END_ref(X509_REQ, X509_REQ)
+
+IMPLEMENT_ASN1_FUNCTIONS(X509_REQ)
+IMPLEMENT_ASN1_DUP_FUNCTION(X509_REQ)