From 03c5381b41d39882de2aef74c02900c58b4989aa Mon Sep 17 00:00:00 2001
From: Tomas Mraz <tomas@openssl.org>
Date: Fri, 4 Nov 2022 12:20:08 +0100
Subject: apps/dgst.c: Set digestname from argv[0] if it is a builtin hash name

Fixes #19589

Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Todd Short <todd.short@me.com>
(Merged from https://github.com/openssl/openssl/pull/19606)

(cherry picked from commit 1e5780dbc79dab14c1ec1584313755fc2fd2cf55)
---
 apps/dgst.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'apps')

diff --git a/apps/dgst.c b/apps/dgst.c
index 5f36cbcb77..1042d940f4 100644
--- a/apps/dgst.c
+++ b/apps/dgst.c
@@ -114,6 +114,8 @@ int dgst_main(int argc, char **argv)
 
     buf = app_malloc(BUFSIZE, "I/O buffer");
     md = (EVP_MD *)EVP_get_digestbyname(argv[0]);
+    if (md != NULL)
+        digestname = argv[0];
 
     prog = opt_init(argc, argv, dgst_options);
     while ((o = opt_next()) != OPT_EOF) {
-- 
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