25aaa98aa2
After the finale, the "real" final part. :) Do a recursive grep with "-B1 -w [a-zA-Z0-9_]*_free" to see if any of the preceeding lines are an "if NULL" check that can be removed. Reviewed-by: Tim Hudson <tjh@openssl.org>
89 lines
1.7 KiB
C
89 lines
1.7 KiB
C
/* S/MIME signing example: 2 signers */
|
|
#include <openssl/pem.h>
|
|
#include <openssl/cms.h>
|
|
#include <openssl/err.h>
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
BIO *in = NULL, *out = NULL, *tbio = NULL;
|
|
X509 *scert = NULL, *scert2 = NULL;
|
|
EVP_PKEY *skey = NULL, *skey2 = NULL;
|
|
CMS_ContentInfo *cms = NULL;
|
|
int ret = 1;
|
|
|
|
OpenSSL_add_all_algorithms();
|
|
ERR_load_crypto_strings();
|
|
|
|
tbio = BIO_new_file("signer.pem", "r");
|
|
|
|
if (!tbio)
|
|
goto err;
|
|
|
|
scert = PEM_read_bio_X509(tbio, NULL, 0, NULL);
|
|
|
|
BIO_reset(tbio);
|
|
|
|
skey = PEM_read_bio_PrivateKey(tbio, NULL, 0, NULL);
|
|
|
|
BIO_free(tbio);
|
|
|
|
tbio = BIO_new_file("signer2.pem", "r");
|
|
|
|
if (!tbio)
|
|
goto err;
|
|
|
|
scert2 = PEM_read_bio_X509(tbio, NULL, 0, NULL);
|
|
|
|
BIO_reset(tbio);
|
|
|
|
skey2 = PEM_read_bio_PrivateKey(tbio, NULL, 0, NULL);
|
|
|
|
if (!scert2 || !skey2)
|
|
goto err;
|
|
|
|
in = BIO_new_file("sign.txt", "r");
|
|
|
|
if (!in)
|
|
goto err;
|
|
|
|
cms = CMS_sign(NULL, NULL, NULL, in, CMS_STREAM | CMS_PARTIAL);
|
|
|
|
if (!cms)
|
|
goto err;
|
|
|
|
/* Add each signer in turn */
|
|
|
|
if (!CMS_add1_signer(cms, scert, skey, NULL, 0))
|
|
goto err;
|
|
|
|
if (!CMS_add1_signer(cms, scert2, skey2, NULL, 0))
|
|
goto err;
|
|
|
|
out = BIO_new_file("smout.txt", "w");
|
|
if (!out)
|
|
goto err;
|
|
|
|
/* NB: content included and finalized by SMIME_write_CMS */
|
|
|
|
if (!SMIME_write_CMS(out, cms, in, CMS_STREAM))
|
|
goto err;
|
|
|
|
ret = 0;
|
|
|
|
err:
|
|
|
|
if (ret) {
|
|
fprintf(stderr, "Error Signing Data\n");
|
|
ERR_print_errors_fp(stderr);
|
|
}
|
|
|
|
CMS_ContentInfo_free(cms);
|
|
X509_free(scert);
|
|
EVP_PKEY_free(skey);
|
|
X509_free(scert2);
|
|
EVP_PKEY_free(skey2);
|
|
BIO_free(in);
|
|
BIO_free(out);
|
|
BIO_free(tbio);
|
|
return ret;
|
|
}
|