Use basename of objxref.pl not whole path in generated header.
[oweals/openssl.git] / crypto / asn1 / a_object.c
index 6a421a66a639c428da810779b6b95d977ca37fc4..f1a5a1e31e4a9367c0a657df1b9c782a44f5ed99 100644 (file)
@@ -62,6 +62,7 @@
 #include <openssl/buffer.h>
 #include <openssl/asn1.h>
 #include <openssl/objects.h>
+#include <openssl/bn.h>
 
 int i2d_ASN1_OBJECT(ASN1_OBJECT *a, unsigned char **pp)
        {
@@ -287,6 +288,7 @@ ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
        {
        ASN1_OBJECT *ret=NULL;
        const unsigned char *p;
+       unsigned char *data;
        int i;
 
        /* only the ASN1_OBJECTs from the 'table' will have values
@@ -299,15 +301,22 @@ ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
        else    ret=(*a);
 
        p= *pp;
-       if ((ret->data == NULL) || (ret->length < len))
+       /* detach data from object */
+       data = (unsigned char *)ret->data;
+       ret->data = NULL;
+       /* once detached we can change it */
+       if ((data == NULL) || (ret->length < len))
                {
-               if (ret->data != NULL) OPENSSL_free(ret->data);
-               ret->data=(unsigned char *)OPENSSL_malloc(len ? (int)len : 1);
-               ret->flags|=ASN1_OBJECT_FLAG_DYNAMIC_DATA;
-               if (ret->data == NULL)
+               ret->length=0;
+               if (data != NULL) OPENSSL_free(data);
+               data=(unsigned char *)OPENSSL_malloc(len ? (int)len : 1);
+               if (data == NULL)
                        { i=ERR_R_MALLOC_FAILURE; goto err; }
+               ret->flags|=ASN1_OBJECT_FLAG_DYNAMIC_DATA;
                }
-       memcpy(ret->data,p,(int)len);
+       memcpy(data,p,(int)len);
+       /* reattach data to object, after which it remains const */
+       ret->data  =data;
        ret->length=(int)len;
        ret->sn=NULL;
        ret->ln=NULL;
@@ -356,7 +365,7 @@ void ASN1_OBJECT_free(ASN1_OBJECT *a)
                }
        if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA)
                {
-               if (a->data != NULL) OPENSSL_free(a->data);
+               if (a->data != NULL) OPENSSL_free((void *)a->data);
                a->data=NULL;
                a->length=0;
                }