diff options
| -rw-r--r-- | doc/man7/crypto.pod | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/man7/crypto.pod b/doc/man7/crypto.pod index 33a321ef60..c3e1664be4 100644 --- a/doc/man7/crypto.pod +++ b/doc/man7/crypto.pod @@ -380,6 +380,7 @@ encryption/decryption, signatures, message authentication codes, etc. #include <stdio.h> #include <openssl/evp.h> #include <openssl/bio.h> + #include <openssl/err.h> int main(void) { @@ -390,6 +391,7 @@ encryption/decryption, signatures, message authentication codes, etc. }; unsigned int len = 0; unsigned char *outdigest = NULL; + int ret = 1; /* Create a context for the digest operation */ ctx = EVP_MD_CTX_new(); @@ -430,11 +432,16 @@ encryption/decryption, signatures, message authentication codes, etc. /* Print out the digest result */ BIO_dump_fp(stdout, outdigest, len); + ret = 0; + err: /* Clean up all the resources we allocated */ OPENSSL_free(outdigest); EVP_MD_free(sha256); EVP_MD_CTX_free(ctx); + if (ret != 0) + ERR_print_errors_fp(stderr); + return ret; } =head1 CONFIGURATION |