1/* 2 * Copyright 1999-2024 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (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 <stdio.h> 11#include "internal/cryptlib.h" 12#include <openssl/x509.h> 13#include <openssl/asn1.h> 14#include "pk7_local.h" 15 16/* PKCS#7 wrappers round generalised stream and MIME routines */ 17 18int i2d_PKCS7_bio_stream(BIO *out, PKCS7 *p7, BIO *in, int flags) 19{ 20 return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)p7, in, flags, 21 ASN1_ITEM_rptr(PKCS7)); 22} 23 24int PEM_write_bio_PKCS7_stream(BIO *out, PKCS7 *p7, BIO *in, int flags) 25{ 26 return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *)p7, in, flags, 27 "PKCS7", ASN1_ITEM_rptr(PKCS7)); 28} 29 30int SMIME_write_PKCS7(BIO *bio, PKCS7 *p7, BIO *data, int flags) 31{ 32 STACK_OF(X509_ALGOR) *mdalgs; 33 int ctype_nid = OBJ_obj2nid(p7->type); 34 const PKCS7_CTX *ctx = ossl_pkcs7_get0_ctx(p7); 35 36 if (ctype_nid == NID_pkcs7_signed) { 37 if (p7->d.sign == NULL) 38 return 0; 39 mdalgs = p7->d.sign->md_algs; 40 } else { 41 mdalgs = NULL; 42 } 43 44 flags ^= SMIME_OLDMIME; 45 46 return SMIME_write_ASN1_ex(bio, (ASN1_VALUE *)p7, data, flags, ctype_nid, 47 NID_undef, mdalgs, ASN1_ITEM_rptr(PKCS7), 48 ossl_pkcs7_ctx_get0_libctx(ctx), 49 ossl_pkcs7_ctx_get0_propq(ctx)); 50} 51 52PKCS7 *SMIME_read_PKCS7_ex(BIO *bio, BIO **bcont, PKCS7 **p7) 53{ 54 PKCS7 *ret; 55 OSSL_LIB_CTX *libctx = NULL; 56 const char *propq = NULL; 57 58 if (p7 != NULL && *p7 != NULL) { 59 libctx = (*p7)->ctx.libctx; 60 propq = (*p7)->ctx.propq; 61 } 62 63 ret = (PKCS7 *)SMIME_read_ASN1_ex(bio, 0, bcont, ASN1_ITEM_rptr(PKCS7), 64 (ASN1_VALUE **)p7, libctx, propq); 65 if (ret != NULL) 66 ossl_pkcs7_resolve_libctx(ret); 67 return ret; 68} 69 70PKCS7 *SMIME_read_PKCS7(BIO *bio, BIO **bcont) 71{ 72 return SMIME_read_PKCS7_ex(bio, bcont, NULL); 73} 74