Correct the return values from long_print.

BIO_print() returns -1 on failure, whereas the ASN print functions need to
return 0.

ok beck@, tb@

1 files changed, 5 insertions, 2 deletions

diff --git a/src/lib/libcrypto/asn1/x_long.c b/src/lib/libcrypto/asn1/x_long.c
index efafce15fe..61685c31a3 100644
--- a/src/lib/libcrypto/asn1/x_long.c
+++ b/src/lib/libcrypto/asn1/x_long.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: x_long.c,v 1.13 2019/03/31 14:41:40 jsing Exp $ */
+/* $OpenBSD: x_long.c,v 1.14 2019/04/01 15:48:50 jsing Exp $ */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project 2000.
  */
@@ -210,5 +210,8 @@ static int
 long_print(BIO *out, ASN1_VALUE **pval, const ASN1_ITEM *it, int indent,
     const ASN1_PCTX *pctx)
 {
-        return BIO_printf(out, "%ld\n", *(long *)pval);
+        if (BIO_printf(out, "%ld\n", *(long *)pval) <= 0)
+                return 0;
+
+        return 1;
 }