+/*
+ * Copyright 2008-2023 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (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
+ */
+
/* S/MIME signing example: 2 signers */
#include <openssl/pem.h>
#include <openssl/cms.h>
X509 *scert = NULL, *scert2 = NULL;
EVP_PKEY *skey = NULL, *skey2 = NULL;
CMS_ContentInfo *cms = NULL;
- int ret = 1;
+ int ret = EXIT_FAILURE;
OpenSSL_add_all_algorithms();
ERR_load_crypto_strings();
scert = PEM_read_bio_X509(tbio, NULL, 0, NULL);
- BIO_reset(tbio);
+ if (BIO_reset(tbio) < 0)
+ goto err;
skey = PEM_read_bio_PrivateKey(tbio, NULL, 0, NULL);
scert2 = PEM_read_bio_X509(tbio, NULL, 0, NULL);
- BIO_reset(tbio);
+ if (BIO_reset(tbio) < 0)
+ goto err;
skey2 = PEM_read_bio_PrivateKey(tbio, NULL, 0, NULL);
if (!SMIME_write_CMS(out, cms, in, CMS_STREAM))
goto err;
- ret = 0;
+ printf("Signing Successful\n");
+ ret = EXIT_SUCCESS;
err:
-
- if (ret) {
+ if (ret != EXIT_SUCCESS) {
fprintf(stderr, "Error Signing Data\n");
ERR_print_errors_fp(stderr);
}
- if (cms)
- CMS_ContentInfo_free(cms);
-
- if (scert)
- X509_free(scert);
- if (skey)
- EVP_PKEY_free(skey);
-
- if (scert2)
- X509_free(scert2);
- if (skey)
- EVP_PKEY_free(skey2);
-
- if (in)
- BIO_free(in);
- if (out)
- BIO_free(out);
- if (tbio)
- BIO_free(tbio);
-
+ CMS_ContentInfo_free(cms);
+ X509_free(scert);
+ EVP_PKEY_free(skey);
+ X509_free(scert2);
+ EVP_PKEY_free(skey2);
+ BIO_free(in);
+ BIO_free(out);
+ BIO_free(tbio);
return ret;
-
}