| Index: openssl/demos/cms/cms_comp.c
|
| ===================================================================
|
| --- openssl/demos/cms/cms_comp.c (revision 0)
|
| +++ openssl/demos/cms/cms_comp.c (revision 0)
|
| @@ -0,0 +1,61 @@
|
| +/* 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 0.9.9 only:
|
| + * for streaming set CMS_STREAM
|
| + */
|
| + int flags = CMS_STREAM;
|
| +
|
| + OpenSSL_add_all_algorithms();
|
| + ERR_load_crypto_strings();
|
| +
|
| + /* Open content being compressed */
|
| +
|
| + in = BIO_new_file("comp.txt", "r");
|
| +
|
| + if (!in)
|
| + goto err;
|
| +
|
| + /* compress content */
|
| + cms = CMS_compress(in, NID_zlib_compression, flags);
|
| +
|
| + if (!cms)
|
| + goto err;
|
| +
|
| + out = BIO_new_file("smcomp.txt", "w");
|
| + if (!out)
|
| + goto err;
|
| +
|
| + /* Write out S/MIME message */
|
| + if (!SMIME_write_CMS(out, cms, in, flags))
|
| + goto err;
|
| +
|
| + ret = 0;
|
| +
|
| + err:
|
| +
|
| + if (ret)
|
| + {
|
| + fprintf(stderr, "Error Compressing Data\n");
|
| + ERR_print_errors_fp(stderr);
|
| + }
|
| +
|
| + if (cms)
|
| + CMS_ContentInfo_free(cms);
|
| + if (in)
|
| + BIO_free(in);
|
| + if (out)
|
| + BIO_free(out);
|
| +
|
| + return ret;
|
| +
|
| + }
|
|
|