+/*
+ * 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 compress example */
#include <openssl/pem.h>
#include <openssl/cms.h>
#include <openssl/err.h>
int main(int argc, char **argv)
- {
- BIO *in = NULL, *out = NULL;
- CMS_ContentInfo *cms = NULL;
- int ret = 1;
-
- /*
- * On OpenSSL 1.0.0+ only:
- * for streaming set CMS_STREAM
- */
- int flags = CMS_STREAM;
-
- OpenSSL_add_all_algorithms();
- ERR_load_crypto_strings();
+{
+ BIO *in = NULL, *out = NULL;
+ CMS_ContentInfo *cms = NULL;
+ int ret = 1;
- /* Open content being compressed */
+ /*
+ * On OpenSSL 1.0.0+ only:
+ * for streaming set CMS_STREAM
+ */
+ int flags = CMS_STREAM;
- in = BIO_new_file("comp.txt", "r");
+ OpenSSL_add_all_algorithms();
+ ERR_load_crypto_strings();
- if (!in)
- goto err;
+ /* Open content being compressed */
- /* compress content */
- cms = CMS_compress(in, NID_zlib_compression, flags);
+ in = BIO_new_file("comp.txt", "r");
- if (!cms)
- goto err;
+ if (!in)
+ goto err;
- out = BIO_new_file("smcomp.txt", "w");
- if (!out)
- goto err;
+ /* compress content */
+ cms = CMS_compress(in, NID_zlib_compression, flags);
- /* Write out S/MIME message */
- if (!SMIME_write_CMS(out, cms, in, flags))
- goto err;
+ if (!cms)
+ goto err;
- ret = 0;
+ out = BIO_new_file("smcomp.txt", "w");
+ if (!out)
+ goto err;
- err:
+ /* Write out S/MIME message */
+ if (!SMIME_write_CMS(out, cms, in, flags))
+ goto err;
- if (ret)
- {
- fprintf(stderr, "Error Compressing Data\n");
- ERR_print_errors_fp(stderr);
- }
+ ret = 0;
- if (cms)
- CMS_ContentInfo_free(cms);
- if (in)
- BIO_free(in);
- if (out)
- BIO_free(out);
+ err:
- return ret;
+ if (ret) {
+ fprintf(stderr, "Error Compressing Data\n");
+ ERR_print_errors_fp(stderr);
+ }
- }
+ CMS_ContentInfo_free(cms);
+ BIO_free(in);
+ BIO_free(out);
+ return ret;
+}