text: /*
   * Copyright 2008-2016 The Opentls 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.opentls.org/source/license.html
   */
  
  /* Simple S/MIME uncompression example */
  #include <opentls/pem.h>
  #include <opentls/cms.h>
  #include <opentls/err.h>
  
  int main(int argc, char **argv)
  {
      BIO *in = NULL, *out = NULL;
      CMS_ContentInfo *cms = NULL;
      int ret = 1;
  
      Opentls_add_all_algorithms();
      ERR_load_crypto_strings();
  
      /* Open compressed content */
  
      in = BIO_new_file("smcomp.txt", "r");
  
      if (!in)
          goto err;
  
      /* Sign content */
      cms = SMIME_read_CMS(in, NULL);
  
      if (!cms)
          goto err;
  
      out = BIO_new_file("smuncomp.txt", "w");
      if (!out)
          goto err;
  
      /* Uncompress S/MIME message */
      if (!CMS_uncompress(cms, out, NULL, 0))
          goto err;
  
      ret = 0;
  
   err:
  
      if (ret) {
          fprintf(stderr, "Error Uncompressing Data\n");
          ERR_print_errors_fp(stderr);
      }
  
      CMS_ContentInfo_free(cms);
      BIO_free(in);
      BIO_free(out);
      return ret;
  }
  