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86db958835
Update makefiles so that consistent patterns are used. Object files are compiled from source using an implicit rule (but using our CFLAGS); for linking, we give an explicit rule. Ensure that "make test" works in each subdirectory (even if it does not actually run any applications). The top-level demo makefile now works. The makefiles are not make-agnostic. e.g. they use the variable $(RM) in "clean" recipes, which is defined in gnu-make but may not be defined in others. Part of #17806 Testing: $ cd demo $ make test Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/22698)
90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
/*
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* Copyright 2008-2023 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/* Simple S/MIME signing example */
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#include <openssl/pem.h>
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#include <openssl/cms.h>
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#include <openssl/err.h>
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int main(int argc, char **argv)
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{
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BIO *in = NULL, *out = NULL, *tbio = NULL;
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X509 *scert = NULL;
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EVP_PKEY *skey = NULL;
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CMS_ContentInfo *cms = NULL;
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int ret = EXIT_FAILURE;
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/*
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* For simple S/MIME signing use CMS_DETACHED. On OpenSSL 1.0.0 only: for
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* streaming detached set CMS_DETACHED|CMS_STREAM for streaming
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* non-detached set CMS_STREAM
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*/
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int flags = CMS_DETACHED | CMS_STREAM;
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OpenSSL_add_all_algorithms();
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ERR_load_crypto_strings();
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/* Read in signer certificate and private key */
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tbio = BIO_new_file("signer.pem", "r");
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if (!tbio)
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goto err;
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scert = PEM_read_bio_X509(tbio, NULL, 0, NULL);
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if (BIO_reset(tbio) < 0)
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goto err;
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skey = PEM_read_bio_PrivateKey(tbio, NULL, 0, NULL);
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if (!scert || !skey)
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goto err;
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/* Open content being signed */
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in = BIO_new_file("sign.txt", "r");
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if (!in)
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goto err;
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/* Sign content */
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cms = CMS_sign(scert, skey, NULL, in, flags);
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if (!cms)
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goto err;
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out = BIO_new_file("smout.txt", "w");
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if (!out)
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goto err;
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if (!(flags & CMS_STREAM)) {
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if (BIO_reset(in) < 0)
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goto err;
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}
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/* Write out S/MIME message */
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if (!SMIME_write_CMS(out, cms, in, flags))
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goto err;
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ret = EXIT_SUCCESS;
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err:
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if (ret != EXIT_SUCCESS) {
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fprintf(stderr, "Error Signing Data\n");
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ERR_print_errors_fp(stderr);
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}
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CMS_ContentInfo_free(cms);
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X509_free(scert);
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EVP_PKEY_free(skey);
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BIO_free(in);
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BIO_free(out);
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BIO_free(tbio);
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return ret;
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}
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