Make DRBG uninstantiate() and instantiate() methods inverse to each other

[openssl.git] / crypto / x509 / x509_att.c

diff --git a/crypto/x509/x509_att.c b/crypto/x509/x509_att.c
index 044f80dfa999eb485252eedd96f6a5b0b01b7c15..63895efe460801a37fea6d01e95abebe4c9d6aba 100644 (file)
--- a/crypto/x509/x509_att.c
+++ b/crypto/x509/x509_att.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
  *
  * Licensed under the OpenSSL license (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
@@ -8,8 +8,8 @@
  */
 
 #include <stdio.h>
-#include <openssl/stack.h>
 #include "internal/cryptlib.h"
+#include <openssl/safestack.h>
 #include <openssl/asn1.h>
 #include <openssl/objects.h>
 #include <openssl/evp.h>
@@ -25,22 +25,21 @@ int X509at_get_attr_count(const STACK_OF(X509_ATTRIBUTE) *x)
 int X509at_get_attr_by_NID(const STACK_OF(X509_ATTRIBUTE) *x, int nid,
                            int lastpos)
 {
-    ASN1_OBJECT *obj;
+    const ASN1_OBJECT *obj = OBJ_nid2obj(nid);
 
-    obj = OBJ_nid2obj(nid);
     if (obj == NULL)
-        return (-2);
-    return (X509at_get_attr_by_OBJ(x, obj, lastpos));
+        return -2;
+    return X509at_get_attr_by_OBJ(x, obj, lastpos);
 }
 
 int X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk,
-                           ASN1_OBJECT *obj, int lastpos)
+                           const ASN1_OBJECT *obj, int lastpos)
 {
     int n;
     X509_ATTRIBUTE *ex;
 
     if (sk == NULL)
-        return (-1);
+        return -1;
     lastpos++;
     if (lastpos < 0)
         lastpos = 0;
@@ -48,17 +47,17 @@ int X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk,
     for (; lastpos < n; lastpos++) {
         ex = sk_X509_ATTRIBUTE_value(sk, lastpos);
         if (OBJ_cmp(ex->object, obj) == 0)
-            return (lastpos);
+            return lastpos;
     }
-    return (-1);
+    return -1;
 }
 
 X509_ATTRIBUTE *X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) *x, int loc)
 {
     if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
         return NULL;
-    else
-        return sk_X509_ATTRIBUTE_value(x, loc);
+
+    return sk_X509_ATTRIBUTE_value(x, loc);
 }
 
 X509_ATTRIBUTE *X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) *x, int loc)
@@ -66,9 +65,9 @@ X509_ATTRIBUTE *X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) *x, int loc)
     X509_ATTRIBUTE *ret;
 
     if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
-        return (NULL);
+        return NULL;
     ret = sk_X509_ATTRIBUTE_delete(x, loc);
-    return (ret);
+    return ret;
 }
 
 STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) **x,
@@ -94,13 +93,13 @@ STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) **x,
         goto err;
     if (*x == NULL)
         *x = sk;
-    return (sk);
+    return sk;
  err:
     X509err(X509_F_X509AT_ADD1_ATTR, ERR_R_MALLOC_FAILURE);
  err2:
     X509_ATTRIBUTE_free(new_attr);
     sk_X509_ATTRIBUTE_free(sk);
-    return (NULL);
+    return NULL;
 }
 
 STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE)
@@ -151,7 +150,7 @@ STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE)
 }
 
 void *X509at_get0_data_by_OBJ(STACK_OF(X509_ATTRIBUTE) *x,
-                              ASN1_OBJECT *obj, int lastpos, int type)
+                              const ASN1_OBJECT *obj, int lastpos, int type)
 {
     int i;
     X509_ATTRIBUTE *at;
@@ -176,12 +175,12 @@ X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE **attr, int nid,
     obj = OBJ_nid2obj(nid);
     if (obj == NULL) {
         X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_NID, X509_R_UNKNOWN_NID);
-        return (NULL);
+        return NULL;
     }
     ret = X509_ATTRIBUTE_create_by_OBJ(attr, obj, atrtype, data, len);
     if (ret == NULL)
         ASN1_OBJECT_free(obj);
-    return (ret);
+    return ret;
 }
 
 X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr,
@@ -195,7 +194,7 @@ X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr,
         if ((ret = X509_ATTRIBUTE_new()) == NULL) {
             X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_OBJ,
                     ERR_R_MALLOC_FAILURE);
-            return (NULL);
+            return NULL;
         }
     } else
         ret = *attr;
@@ -207,11 +206,11 @@ X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr,
 
     if ((attr != NULL) && (*attr == NULL))
         *attr = ret;
-    return (ret);
+    return ret;
  err:
     if ((attr == NULL) || (ret != *attr))
         X509_ATTRIBUTE_free(ret);
-    return (NULL);
+    return NULL;
 }
 
 X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE **attr,
@@ -227,7 +226,7 @@ X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE **attr,
         X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_TXT,
                 X509_R_INVALID_FIELD_NAME);
         ERR_add_error_data(2, "name=", atrname);
-        return (NULL);
+        return NULL;
     }
     nattr = X509_ATTRIBUTE_create_by_OBJ(attr, obj, type, bytes, len);
     ASN1_OBJECT_free(obj);
@@ -237,7 +236,7 @@ X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE **attr,
 int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE *attr, const ASN1_OBJECT *obj)
 {
     if ((attr == NULL) || (obj == NULL))
-        return (0);
+        return 0;
     ASN1_OBJECT_free(attr->object);
     attr->object = OBJ_dup(obj);
     return attr->object != NULL;
@@ -304,8 +303,8 @@ int X509_ATTRIBUTE_count(const X509_ATTRIBUTE *attr)
 ASN1_OBJECT *X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE *attr)
 {
     if (attr == NULL)
-        return (NULL);
-    return (attr->object);
+        return NULL;
+    return attr->object;
 }
 
 void *X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE *attr, int idx,