Constify X509|X509_CRL|X509_REVOKED_get_ext

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

crypto/x509/x509_ext.c

@@ -37,7 +37,7 @@ int X509_CRL_get_ext_by_critical(const X509_CRL *x, int crit, int lastpos)
     return (X509v3_get_ext_by_critical(x->crl.extensions, crit, lastpos));
 }
 
-X509_EXTENSION *X509_CRL_get_ext(X509_CRL *x, int loc)
+X509_EXTENSION *X509_CRL_get_ext(const X509_CRL *x, int loc)
 {
     return (X509v3_get_ext(x->crl.extensions, loc));
 }
@@ -84,7 +84,7 @@ int X509_get_ext_by_critical(const X509 *x, int crit, int lastpos)
             (x->cert_info.extensions, crit, lastpos));
 }
 
-X509_EXTENSION *X509_get_ext(X509 *x, int loc)
+X509_EXTENSION *X509_get_ext(const X509 *x, int loc)
 {
     return (X509v3_get_ext(x->cert_info.extensions, loc));
 }
@@ -132,7 +132,7 @@ int X509_REVOKED_get_ext_by_critical(const X509_REVOKED *x, int crit, int lastpo
     return (X509v3_get_ext_by_critical(x->extensions, crit, lastpos));
 }
 
-X509_EXTENSION *X509_REVOKED_get_ext(X509_REVOKED *x, int loc)
+X509_EXTENSION *X509_REVOKED_get_ext(const X509_REVOKED *x, int loc)
 {
     return (X509v3_get_ext(x->extensions, loc));
 }

doc/crypto/X509v3_get_ext_by_NID.pod

@@ -31,7 +31,7 @@ X509_REVOKED_add_ext - extension stack utility functions
                                           X509_EXTENSION *ex, int loc);
 
  int X509_get_ext_count(const X509 *x);
- X509_EXTENSION *X509_get_ext(X509 *x, int loc);
+ X509_EXTENSION *X509_get_ext(const X509 *x, int loc);
  int X509_get_ext_by_NID(const X509 *x, int nid, int lastpos);
  int X509_get_ext_by_OBJ(const X509 *x, ASN1_OBJECT *obj, int lastpos);
  int X509_get_ext_by_critical(const X509 *x, int crit, int lastpos);
@@ -39,7 +39,7 @@ X509_REVOKED_add_ext - extension stack utility functions
  int X509_add_ext(X509 *x, X509_EXTENSION *ex, int loc);
 
  int X509_CRL_get_ext_count(const X509_CRL *x);
- X509_EXTENSION *X509_CRL_get_ext(X509_CRL *x, int loc);
+ X509_EXTENSION *X509_CRL_get_ext(const X509_CRL *x, int loc);
  int X509_CRL_get_ext_by_NID(const X509_CRL *x, int nid, int lastpos);
  int X509_CRL_get_ext_by_OBJ(const X509_CRL *x, ASN1_OBJECT *obj, int lastpos);
  int X509_CRL_get_ext_by_critical(const X509_CRL *x, int crit, int lastpos);
@@ -47,7 +47,7 @@ X509_REVOKED_add_ext - extension stack utility functions
  int X509_CRL_add_ext(X509_CRL *x, X509_EXTENSION *ex, int loc);
 
  int X509_REVOKED_get_ext_count(const X509_REVOKED *x);
- X509_EXTENSION *X509_REVOKED_get_ext(X509_REVOKED *x, int loc);
+ X509_EXTENSION *X509_REVOKED_get_ext(const X509_REVOKED *x, int loc);
  int X509_REVOKED_get_ext_by_NID(const X509_REVOKED *x, int nid, int lastpos);
  int X509_REVOKED_get_ext_by_OBJ(const X509_REVOKED *x, ASN1_OBJECT *obj,
                                 int lastpos);

include/openssl/x509.h

@@ -816,7 +816,7 @@ int X509_get_ext_count(const X509 *x);
 int X509_get_ext_by_NID(const X509 *x, int nid, int lastpos);
 int X509_get_ext_by_OBJ(const X509 *x, ASN1_OBJECT *obj, int lastpos);
 int X509_get_ext_by_critical(const X509 *x, int crit, int lastpos);
-X509_EXTENSION *X509_get_ext(X509 *x, int loc);
+X509_EXTENSION *X509_get_ext(const X509 *x, int loc);
 X509_EXTENSION *X509_delete_ext(X509 *x, int loc);
 int X509_add_ext(X509 *x, X509_EXTENSION *ex, int loc);
 void *X509_get_ext_d2i(const X509 *x, int nid, int *crit, int *idx);
@@ -827,7 +827,7 @@ int X509_CRL_get_ext_count(const X509_CRL *x);
 int X509_CRL_get_ext_by_NID(const X509_CRL *x, int nid, int lastpos);
 int X509_CRL_get_ext_by_OBJ(const X509_CRL *x, ASN1_OBJECT *obj, int lastpos);
 int X509_CRL_get_ext_by_critical(const X509_CRL *x, int crit, int lastpos);
-X509_EXTENSION *X509_CRL_get_ext(X509_CRL *x, int loc);
+X509_EXTENSION *X509_CRL_get_ext(const X509_CRL *x, int loc);
 X509_EXTENSION *X509_CRL_delete_ext(X509_CRL *x, int loc);
 int X509_CRL_add_ext(X509_CRL *x, X509_EXTENSION *ex, int loc);
 void *X509_CRL_get_ext_d2i(const X509_CRL *x, int nid, int *crit, int *idx);
@@ -839,7 +839,7 @@ int X509_REVOKED_get_ext_by_NID(const X509_REVOKED *x, int nid, int lastpos);
 int X509_REVOKED_get_ext_by_OBJ(const X509_REVOKED *x, ASN1_OBJECT *obj,
                                 int lastpos);
 int X509_REVOKED_get_ext_by_critical(const X509_REVOKED *x, int crit, int lastpos);
-X509_EXTENSION *X509_REVOKED_get_ext(X509_REVOKED *x, int loc);
+X509_EXTENSION *X509_REVOKED_get_ext(const X509_REVOKED *x, int loc);
 X509_EXTENSION *X509_REVOKED_delete_ext(X509_REVOKED *x, int loc);
 int X509_REVOKED_add_ext(X509_REVOKED *x, X509_EXTENSION *ex, int loc);
 void *X509_REVOKED_get_ext_d2i(const X509_REVOKED *x, int nid, int *crit, int *idx);