openssl enc: Don't unbuffer stdin

 - unbuffer causes single-byte reads from stdin and poor performance

Fixes #3281
CLA: trivial

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3299)
(cherry picked from commit 65d62488b8c808350f440d2276034f5223b391ad)

diff --git a/apps/enc.c b/apps/enc.c
index b11d553205d7e4d87711376fc751ed0f08e8ac11..c906563311f278591acababbc850a85a8f5e88ee 100644 (file)
--- a/apps/enc.c
+++ b/apps/enc.c
@@ -291,7 +291,6 @@ int enc_main(int argc, char **argv)
     buff = app_malloc(EVP_ENCODE_LENGTH(bsize), "evp buffer");
 
     if (infile == NULL) {
-        unbuffer(stdin);
         in = dup_bio_in(informat);
     } else
         in = bio_open_default(infile, 'r', informat);