| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved. |
| 3 | * |
| 4 | * Licensed under the OpenSSL license (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 | /* Simple S/MIME uncompression example */ |
| 11 | #include <openssl/pem.h> |
| 12 | #include <openssl/cms.h> |
| 13 | #include <openssl/err.h> |
| 14 | |
| 15 | int main(int argc, char **argv) |
| 16 | { |
| 17 | BIO *in = NULL, *out = NULL; |
| 18 | CMS_ContentInfo *cms = NULL; |
| 19 | int ret = 1; |
| 20 | |
| 21 | OpenSSL_add_all_algorithms(); |
| 22 | ERR_load_crypto_strings(); |
| 23 | |
| 24 | /* Open compressed content */ |
| 25 | |
| 26 | in = BIO_new_file("smcomp.txt", "r"); |
| 27 | |
| 28 | if (!in) |
| 29 | goto err; |
| 30 | |
| 31 | /* Sign content */ |
| 32 | cms = SMIME_read_CMS(in, NULL); |
| 33 | |
| 34 | if (!cms) |
| 35 | goto err; |
| 36 | |
| 37 | out = BIO_new_file("smuncomp.txt", "w"); |
| 38 | if (!out) |
| 39 | goto err; |
| 40 | |
| 41 | /* Uncompress S/MIME message */ |
| 42 | if (!CMS_uncompress(cms, out, NULL, 0)) |
| 43 | goto err; |
| 44 | |
| 45 | ret = 0; |
| 46 | |
| 47 | err: |
| 48 | |
| 49 | if (ret) { |
| 50 | fprintf(stderr, "Error Uncompressing Data\n"); |
| 51 | ERR_print_errors_fp(stderr); |
| 52 | } |
| 53 | |
| 54 | CMS_ContentInfo_free(cms); |
| 55 | BIO_free(in); |
| 56 | BIO_free(out); |
| 57 | return ret; |
| 58 | } |