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-rw-r--r--apps/dgst.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/apps/dgst.c b/apps/dgst.c
index e438b7c8cc..b10b93e588 100644
--- a/apps/dgst.c
+++ b/apps/dgst.c
@@ -185,6 +185,10 @@ int dgst_main(int argc, char **argv)
}
argc = opt_num_rest();
argv = opt_rest();
+ if (keyfile != NULL && argc > 1) {
+ BIO_printf(bio_err, "%s: Can only sign or verify one file.\n", prog);
+ goto end;
+ }
if (do_verify && !sigfile) {
BIO_printf(bio_err,