+/*
+ * 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
+ */
+
/* Simple S/MIME verification example */
#include <openssl/pem.h>
#include <openssl/cms.h>
#include <openssl/err.h>
int main(int argc, char **argv)
- {
- BIO *in = NULL, *out = NULL, *tbio = NULL, *cont = NULL;
- X509_STORE *st = NULL;
- X509 *cacert = NULL;
- CMS_ContentInfo *cms = NULL;
-
- int ret = 1;
-
- OpenSSL_add_all_algorithms();
- ERR_load_crypto_strings();
-
- /* Set up trusted CA certificate store */
-
- st = X509_STORE_new();
+{
+ BIO *in = NULL, *out = NULL, *tbio = NULL, *cont = NULL;
+ X509_STORE *st = NULL;
+ X509 *cacert = NULL;
+ CMS_ContentInfo *cms = NULL;
- /* Read in CA certificate */
- tbio = BIO_new_file("cacert.pem", "r");
+ int ret = 1;
- if (!tbio)
- goto err;
+ OpenSSL_add_all_algorithms();
+ ERR_load_crypto_strings();
- cacert = PEM_read_bio_X509(tbio, NULL, 0, NULL);
+ /* Set up trusted CA certificate store */
- if (!cacert)
- goto err;
+ st = X509_STORE_new();
- if (!X509_STORE_add_cert(st, cacert))
- goto err;
+ /* Read in CA certificate */
+ tbio = BIO_new_file("cacert.pem", "r");
- /* Open message being verified */
+ if (!tbio)
+ goto err;
- in = BIO_new_file("smout.txt", "r");
+ cacert = PEM_read_bio_X509(tbio, NULL, 0, NULL);
- if (!in)
- goto err;
+ if (!cacert)
+ goto err;
- /* parse message */
- cms = SMIME_read_CMS(in, &cont);
+ if (!X509_STORE_add_cert(st, cacert))
+ goto err;
- if (!cms)
- goto err;
+ /* Open message being verified */
- /* File to output verified content to */
- out = BIO_new_file("smver.txt", "w");
- if (!out)
- goto err;
+ in = BIO_new_file("smout.txt", "r");
- if (!CMS_verify(cms, NULL, st, cont, out, 0))
- {
- fprintf(stderr, "Verification Failure\n");
- goto err;
- }
+ if (!in)
+ goto err;
- fprintf(stderr, "Verification Successful\n");
+ /* parse message */
+ cms = SMIME_read_CMS(in, &cont);
- ret = 0;
+ if (!cms)
+ goto err;
- err:
+ /* File to output verified content to */
+ out = BIO_new_file("smver.txt", "w");
+ if (!out)
+ goto err;
- if (ret)
- {
- fprintf(stderr, "Error Verifying Data\n");
- ERR_print_errors_fp(stderr);
- }
+ if (!CMS_verify(cms, NULL, st, cont, out, 0)) {
+ fprintf(stderr, "Verification Failure\n");
+ goto err;
+ }
- if (cms)
- CMS_ContentInfo_free(cms);
+ fprintf(stderr, "Verification Successful\n");
- if (cacert)
- X509_free(cacert);
+ ret = 0;
- if (in)
- BIO_free(in);
- if (out)
- BIO_free(out);
- if (tbio)
- BIO_free(tbio);
+ err:
- return ret;
+ if (ret) {
+ fprintf(stderr, "Error Verifying Data\n");
+ ERR_print_errors_fp(stderr);
+ }
- }
+ CMS_ContentInfo_free(cms);
+ X509_free(cacert);
+ BIO_free(in);
+ BIO_free(out);
+ BIO_free(tbio);
+ return ret;
+}