1 files changed, 88 insertions, 0 deletions

diff --git a/src/lib/libcrypto/cms/cms_io.c b/src/lib/libcrypto/cms/cms_io.c
new file mode 100644
index 0000000000..d18f980a97
--- /dev/null
+++ b/src/lib/libcrypto/cms/cms_io.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/asn1t.h>
+#include <openssl/x509.h>
+#include <openssl/err.h>
+#include <openssl/pem.h>
+#include <openssl/cms.h>
+#include "cms_lcl.h"
+
+int CMS_stream(unsigned char ***boundary, CMS_ContentInfo *cms)
+{
+    ASN1_OCTET_STRING **pos;
+    pos = CMS_get0_content(cms);
+    if (pos == NULL)
+        return 0;
+    if (*pos == NULL)
+        *pos = ASN1_OCTET_STRING_new();
+    if (*pos != NULL) {
+        (*pos)->flags |= ASN1_STRING_FLAG_NDEF;
+        (*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
+        *boundary = &(*pos)->data;
+        return 1;
+    }
+    CMSerr(CMS_F_CMS_STREAM, ERR_R_MALLOC_FAILURE);
+    return 0;
+}
+
+CMS_ContentInfo *d2i_CMS_bio(BIO *bp, CMS_ContentInfo **cms)
+{
+    return ASN1_item_d2i_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
+}
+
+int i2d_CMS_bio(BIO *bp, CMS_ContentInfo *cms)
+{
+    return ASN1_item_i2d_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
+}
+
+IMPLEMENT_PEM_rw_const(CMS, CMS_ContentInfo, PEM_STRING_CMS, CMS_ContentInfo)
+
+BIO *BIO_new_CMS(BIO *out, CMS_ContentInfo *cms)
+{
+    return BIO_new_NDEF(out, (ASN1_VALUE *)cms,
+                        ASN1_ITEM_rptr(CMS_ContentInfo));
+}
+
+/* CMS wrappers round generalised stream and MIME routines */
+
+int i2d_CMS_bio_stream(BIO *out, CMS_ContentInfo *cms, BIO *in, int flags)
+{
+    return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)cms, in, flags,
+                               ASN1_ITEM_rptr(CMS_ContentInfo));
+}
+
+int PEM_write_bio_CMS_stream(BIO *out, CMS_ContentInfo *cms, BIO *in,
+                             int flags)
+{
+    return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *)cms, in, flags,
+                                     "CMS", ASN1_ITEM_rptr(CMS_ContentInfo));
+}
+
+int SMIME_write_CMS(BIO *bio, CMS_ContentInfo *cms, BIO *data, int flags)
+{
+    STACK_OF(X509_ALGOR) *mdalgs;
+    int ctype_nid = OBJ_obj2nid(cms->contentType);
+    int econt_nid = OBJ_obj2nid(CMS_get0_eContentType(cms));
+    if (ctype_nid == NID_pkcs7_signed)
+        mdalgs = cms->d.signedData->digestAlgorithms;
+    else
+        mdalgs = NULL;
+
+    return SMIME_write_ASN1(bio, (ASN1_VALUE *)cms, data, flags,
+                            ctype_nid, econt_nid, mdalgs,
+                            ASN1_ITEM_rptr(CMS_ContentInfo));
+}
+
+CMS_ContentInfo *SMIME_read_CMS(BIO *bio, BIO **bcont)
+{
+    return (CMS_ContentInfo *)SMIME_read_ASN1(bio, bcont,
+                                              ASN1_ITEM_rptr
+                                              (CMS_ContentInfo));
+}