#include <openssl/err.h>
int main(int argc, char **argv)
- {
- BIO *in = NULL, *out = NULL, *tbio = NULL;
- X509 *scert = NULL;
- EVP_PKEY *skey = NULL;
- PKCS7 *p7 = NULL;
- int ret = 1;
+{
+ BIO *in = NULL, *out = NULL, *tbio = NULL;
+ X509 *scert = NULL;
+ EVP_PKEY *skey = NULL;
+ PKCS7 *p7 = NULL;
+ int ret = 1;
- /* For simple S/MIME signing use PKCS7_DETACHED.
- * On OpenSSL 0.9.9 only:
- * for streaming detached set PKCS7_DETACHED|PKCS7_STREAM
- * for streaming non-detached set PKCS7_STREAM
- */
- int flags = PKCS7_DETACHED|PKCS7_STREAM;
+ /*
+ * For simple S/MIME signing use PKCS7_DETACHED. On OpenSSL 0.9.9 only:
+ * for streaming detached set PKCS7_DETACHED|PKCS7_STREAM for streaming
+ * non-detached set PKCS7_STREAM
+ */
+ int flags = PKCS7_DETACHED | PKCS7_STREAM;
- OpenSSL_add_all_algorithms();
- ERR_load_crypto_strings();
+ OpenSSL_add_all_algorithms();
+ ERR_load_crypto_strings();
- /* Read in signer certificate and private key */
- tbio = BIO_new_file("signer.pem", "r");
+ /* Read in signer certificate and private key */
+ tbio = BIO_new_file("signer.pem", "r");
- if (!tbio)
- goto err;
+ if (!tbio)
+ goto err;
- scert = PEM_read_bio_X509(tbio, NULL, 0, NULL);
+ scert = PEM_read_bio_X509(tbio, NULL, 0, NULL);
- BIO_reset(tbio);
+ BIO_reset(tbio);
- skey = PEM_read_bio_PrivateKey(tbio, NULL, 0, NULL);
+ skey = PEM_read_bio_PrivateKey(tbio, NULL, 0, NULL);
- if (!scert || !skey)
- goto err;
+ if (!scert || !skey)
+ goto err;
- /* Open content being signed */
+ /* Open content being signed */
- in = BIO_new_file("sign.txt", "r");
+ in = BIO_new_file("sign.txt", "r");
- if (!in)
- goto err;
+ if (!in)
+ goto err;
- /* Sign content */
- p7 = PKCS7_sign(scert, skey, NULL, in, flags);
+ /* Sign content */
+ p7 = PKCS7_sign(scert, skey, NULL, in, flags);
- if (!p7)
- goto err;
+ if (!p7)
+ goto err;
- out = BIO_new_file("smout.txt", "w");
- if (!out)
- goto err;
+ out = BIO_new_file("smout.txt", "w");
+ if (!out)
+ goto err;
- if (!(flags & PKCS7_STREAM))
- BIO_reset(in);
+ if (!(flags & PKCS7_STREAM))
+ BIO_reset(in);
- /* Write out S/MIME message */
- if (!SMIME_write_PKCS7(out, p7, in, flags))
- goto err;
+ /* Write out S/MIME message */
+ if (!SMIME_write_PKCS7(out, p7, in, flags))
+ goto err;
- ret = 0;
+ ret = 0;
- err:
+ err:
+ if (ret) {
+ fprintf(stderr, "Error Signing Data\n");
+ ERR_print_errors_fp(stderr);
+ }
+ PKCS7_free(p7);
+ X509_free(scert);
+ EVP_PKEY_free(skey);
+ BIO_free(in);
+ BIO_free(out);
+ BIO_free(tbio);
- if (ret)
- {
- fprintf(stderr, "Error Signing Data\n");
- ERR_print_errors_fp(stderr);
- }
+ return ret;
- if (p7)
- PKCS7_free(p7);
- if (scert)
- X509_free(scert);
- if (skey)
- EVP_PKEY_free(skey);
-
- if (in)
- BIO_free(in);
- if (out)
- BIO_free(out);
- if (tbio)
- BIO_free(tbio);
-
- return ret;
-
- }
+}