Fix async engine pause dead lock in error case.
[openssl.git] / crypto / cms / cms_io.c
1 /*
2  * Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved.
3  *
4  * Licensed under the OpenSSL license (the "License").  You may not use
5  * this file except in compliance with the License.  You can obtain a copy
6  * in the file LICENSE in the source distribution or at
7  * https://www.openssl.org/source/license.html
8  */
9
10 #include <openssl/asn1t.h>
11 #include <openssl/x509.h>
12 #include <openssl/err.h>
13 #include <openssl/pem.h>
14 #include <openssl/cms.h>
15 #include "cms_lcl.h"
16
17 int CMS_stream(unsigned char ***boundary, CMS_ContentInfo *cms)
18 {
19     ASN1_OCTET_STRING **pos;
20     pos = CMS_get0_content(cms);
21     if (pos == NULL)
22         return 0;
23     if (*pos == NULL)
24         *pos = ASN1_OCTET_STRING_new();
25     if (*pos != NULL) {
26         (*pos)->flags |= ASN1_STRING_FLAG_NDEF;
27         (*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
28         *boundary = &(*pos)->data;
29         return 1;
30     }
31     CMSerr(CMS_F_CMS_STREAM, ERR_R_MALLOC_FAILURE);
32     return 0;
33 }
34
35 CMS_ContentInfo *d2i_CMS_bio(BIO *bp, CMS_ContentInfo **cms)
36 {
37     return ASN1_item_d2i_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
38 }
39
40 int i2d_CMS_bio(BIO *bp, CMS_ContentInfo *cms)
41 {
42     return ASN1_item_i2d_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
43 }
44
45 IMPLEMENT_PEM_rw_const(CMS, CMS_ContentInfo, PEM_STRING_CMS, CMS_ContentInfo)
46
47 BIO *BIO_new_CMS(BIO *out, CMS_ContentInfo *cms)
48 {
49     return BIO_new_NDEF(out, (ASN1_VALUE *)cms,
50                         ASN1_ITEM_rptr(CMS_ContentInfo));
51 }
52
53 /* CMS wrappers round generalised stream and MIME routines */
54
55 int i2d_CMS_bio_stream(BIO *out, CMS_ContentInfo *cms, BIO *in, int flags)
56 {
57     return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)cms, in, flags,
58                                ASN1_ITEM_rptr(CMS_ContentInfo));
59 }
60
61 int PEM_write_bio_CMS_stream(BIO *out, CMS_ContentInfo *cms, BIO *in,
62                              int flags)
63 {
64     return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *)cms, in, flags,
65                                      "CMS", ASN1_ITEM_rptr(CMS_ContentInfo));
66 }
67
68 int SMIME_write_CMS(BIO *bio, CMS_ContentInfo *cms, BIO *data, int flags)
69 {
70     STACK_OF(X509_ALGOR) *mdalgs;
71     int ctype_nid = OBJ_obj2nid(cms->contentType);
72     int econt_nid = OBJ_obj2nid(CMS_get0_eContentType(cms));
73     if (ctype_nid == NID_pkcs7_signed)
74         mdalgs = cms->d.signedData->digestAlgorithms;
75     else
76         mdalgs = NULL;
77
78     return SMIME_write_ASN1(bio, (ASN1_VALUE *)cms, data, flags,
79                             ctype_nid, econt_nid, mdalgs,
80                             ASN1_ITEM_rptr(CMS_ContentInfo));
81 }
82
83 CMS_ContentInfo *SMIME_read_CMS(BIO *bio, BIO **bcont)
84 {
85     return (CMS_ContentInfo *)SMIME_read_ASN1(bio, bcont,
86                                               ASN1_ITEM_rptr
87                                               (CMS_ContentInfo));
88 }