Constify i2a*

Reviewed-by: NRich Salz <rsalz@openssl.org>

crypto/asn1/f_int.c

@@ -153,7 +153,7 @@ int a2i_ASN1_INTEGER(BIO *bp, ASN1_INTEGER *bs, char *buf, int size)
     return 0;
 }
 
-int i2a_ASN1_ENUMERATED(BIO *bp, ASN1_ENUMERATED *a)
+int i2a_ASN1_ENUMERATED(BIO *bp, const ASN1_ENUMERATED *a)
 {
     return i2a_ASN1_INTEGER(bp, a);
 }

crypto/asn1/f_string.c

@@ -13,7 +13,7 @@
 #include <openssl/buffer.h>
 #include <openssl/asn1.h>
 
-int i2a_ASN1_STRING(BIO *bp, ASN1_STRING *a, int type)
+int i2a_ASN1_STRING(BIO *bp, const ASN1_STRING *a, int type)
 {
     int i, n = 0;
     static const char *h = "0123456789ABCDEF";

crypto/x509v3/v3_info.c

@@ -150,7 +150,7 @@ static AUTHORITY_INFO_ACCESS *v2i_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD
     return NULL;
 }
 
-int i2a_ACCESS_DESCRIPTION(BIO *bp, ACCESS_DESCRIPTION *a)
+int i2a_ACCESS_DESCRIPTION(BIO *bp, const ACCESS_DESCRIPTION *a)
 {
     i2a_ASN1_OBJECT(bp, a->method);
     return 2;

include/openssl/asn1.h

@@ -631,11 +631,11 @@ int ASN1_TIME_set_string(ASN1_TIME *s, const char *str);
 
 int i2a_ASN1_INTEGER(BIO *bp, const ASN1_INTEGER *a);
 int a2i_ASN1_INTEGER(BIO *bp, ASN1_INTEGER *bs, char *buf, int size);
-int i2a_ASN1_ENUMERATED(BIO *bp, ASN1_ENUMERATED *a);
+int i2a_ASN1_ENUMERATED(BIO *bp, const ASN1_ENUMERATED *a);
 int a2i_ASN1_ENUMERATED(BIO *bp, ASN1_ENUMERATED *bs, char *buf, int size);
 int i2a_ASN1_OBJECT(BIO *bp, const ASN1_OBJECT *a);
 int a2i_ASN1_STRING(BIO *bp, ASN1_STRING *bs, char *buf, int size);
-int i2a_ASN1_STRING(BIO *bp, ASN1_STRING *a, int type);
+int i2a_ASN1_STRING(BIO *bp, const ASN1_STRING *a, int type);
 int i2t_ASN1_OBJECT(char *buf, int buf_len, const ASN1_OBJECT *a);
 
 int a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num);

include/openssl/x509v3.h

@@ -506,7 +506,7 @@ ASN1_OCTET_STRING *s2i_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method,
                                          X509V3_CTX *ctx, char *str);
 
 DECLARE_ASN1_FUNCTIONS(EXTENDED_KEY_USAGE)
-int i2a_ACCESS_DESCRIPTION(BIO *bp, ACCESS_DESCRIPTION *a);
+int i2a_ACCESS_DESCRIPTION(BIO *bp, const ACCESS_DESCRIPTION *a);
 
 DECLARE_ASN1_ALLOC_FUNCTIONS(TLS_FEATURE)