Add const qualifiers to return value of BIO_f_{base64,cipher,md}().

tested in bulk by sthen
ok jsing

4 files changed, 13 insertions, 13 deletions

diff --git a/src/lib/libcrypto/evp/bio_b64.c b/src/lib/libcrypto/evp/bio_b64.c
index b54e8793ec..a13d26a884 100644
--- a/src/lib/libcrypto/evp/bio_b64.c
+++ b/src/lib/libcrypto/evp/bio_b64.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: bio_b64.c,v 1.20 2015/02/07 13:19:15 doug Exp $ */
+/* $OpenBSD: bio_b64.c,v 1.21 2018/05/02 15:51:41 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -91,7 +91,7 @@ typedef struct b64_struct {
         char tmp[B64_BLOCK_SIZE];
 } BIO_B64_CTX;
 
-static BIO_METHOD methods_b64 = {
+static const BIO_METHOD methods_b64 = {
         .type = BIO_TYPE_BASE64,
         .name = "base64 encoding",
         .bwrite = b64_write,
@@ -103,7 +103,7 @@ static BIO_METHOD methods_b64 = {
         .callback_ctrl = b64_callback_ctrl
 };
 
-BIO_METHOD *
+const BIO_METHOD *
 BIO_f_base64(void)
 {
         return (&methods_b64);
diff --git a/src/lib/libcrypto/evp/bio_enc.c b/src/lib/libcrypto/evp/bio_enc.c
index 7c7cf9a8b3..712222a7cd 100644
--- a/src/lib/libcrypto/evp/bio_enc.c
+++ b/src/lib/libcrypto/evp/bio_enc.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: bio_enc.c,v 1.20 2017/05/02 03:59:44 deraadt Exp $ */
+/* $OpenBSD: bio_enc.c,v 1.21 2018/05/02 15:51:41 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -87,7 +87,7 @@ typedef struct enc_struct {
         char buf[ENC_BLOCK_SIZE + BUF_OFFSET + 2];
 } BIO_ENC_CTX;
 
-static BIO_METHOD methods_enc = {
+static const BIO_METHOD methods_enc = {
         .type = BIO_TYPE_CIPHER,
         .name = "cipher",
         .bwrite = enc_write,
@@ -98,7 +98,7 @@ static BIO_METHOD methods_enc = {
         .callback_ctrl = enc_callback_ctrl
 };
 
-BIO_METHOD *
+const BIO_METHOD *
 BIO_f_cipher(void)
 {
         return (&methods_enc);
diff --git a/src/lib/libcrypto/evp/bio_md.c b/src/lib/libcrypto/evp/bio_md.c
index b1973746a7..44f72185dc 100644
--- a/src/lib/libcrypto/evp/bio_md.c
+++ b/src/lib/libcrypto/evp/bio_md.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: bio_md.c,v 1.14 2014/07/11 08:44:48 jsing Exp $ */
+/* $OpenBSD: bio_md.c,v 1.15 2018/05/02 15:51:41 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -74,7 +74,7 @@ static int md_new(BIO *h);
 static int md_free(BIO *data);
 static long md_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp);
 
-static BIO_METHOD methods_md = {
+static const BIO_METHOD methods_md = {
         .type = BIO_TYPE_MD,
         .name = "message digest",
         .bwrite = md_write,
@@ -86,7 +86,7 @@ static BIO_METHOD methods_md = {
         .callback_ctrl = md_callback_ctrl
 };
 
-BIO_METHOD *
+const BIO_METHOD *
 BIO_f_md(void)
 {
         return (&methods_md);
diff --git a/src/lib/libcrypto/evp/evp.h b/src/lib/libcrypto/evp/evp.h
index e12e771cc5..817d4fb734 100644
--- a/src/lib/libcrypto/evp/evp.h
+++ b/src/lib/libcrypto/evp/evp.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: evp.h,v 1.58 2018/02/20 18:05:28 tb Exp $ */
+/* $OpenBSD: evp.h,v 1.59 2018/05/02 15:51:41 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -651,9 +651,9 @@ int EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr);
 int EVP_CIPHER_CTX_rand_key(EVP_CIPHER_CTX *ctx, unsigned char *key);
 
 #ifndef OPENSSL_NO_BIO
-BIO_METHOD *BIO_f_md(void);
-BIO_METHOD *BIO_f_base64(void);
-BIO_METHOD *BIO_f_cipher(void);
+const BIO_METHOD *BIO_f_md(void);
+const BIO_METHOD *BIO_f_base64(void);
+const BIO_METHOD *BIO_f_cipher(void);
 void BIO_set_cipher(BIO *b, const EVP_CIPHER *c, const unsigned char *k,
     const unsigned char *i, int enc);
 #endif