Constify ASN1_buf_print

Reviewed-by: NMatt Caswell <matt@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1300)

crypto/asn1/t_pkey.c

@@ -18,7 +18,7 @@
 /* Maximum indent */
 #define ASN1_PRINT_MAX_INDENT 128
 
-int ASN1_buf_print(BIO *bp, unsigned char *buf, size_t buflen, int indent)
+int ASN1_buf_print(BIO *bp, const unsigned char *buf, size_t buflen, int indent)
 {
     size_t i;
 

include/openssl/asn1.h

@@ -752,7 +752,7 @@ int ASN1_GENERALIZEDTIME_print(BIO *fp, const ASN1_GENERALIZEDTIME *a);
 int ASN1_TIME_print(BIO *fp, const ASN1_TIME *a);
 int ASN1_STRING_print(BIO *bp, const ASN1_STRING *v);
 int ASN1_STRING_print_ex(BIO *out, ASN1_STRING *str, unsigned long flags);
-int ASN1_buf_print(BIO *bp, unsigned char *buf, size_t buflen, int off);
+int ASN1_buf_print(BIO *bp, const unsigned char *buf, size_t buflen, int off);
 int ASN1_bn_print(BIO *bp, const char *number, const BIGNUM *num,
                   unsigned char *buf, int off);
 int ASN1_parse(BIO *bp, const unsigned char *pp, long len, int indent);