1 /* 2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #include <stdio.h> 11 #include "internal/cryptlib.h" 12 #include <openssl/objects.h> 13 #include <openssl/buffer.h> 14 #include "crypto/asn1.h" 15 OBJ_dup(const ASN1_OBJECT * o)16ASN1_OBJECT *OBJ_dup(const ASN1_OBJECT *o) 17 { 18 ASN1_OBJECT *r; 19 20 if (o == NULL) 21 return NULL; 22 /* If object isn't dynamic it's an internal OID which is never freed */ 23 if (!(o->flags & ASN1_OBJECT_FLAG_DYNAMIC)) 24 return (ASN1_OBJECT *)o; 25 26 r = ASN1_OBJECT_new(); 27 if (r == NULL) { 28 ERR_raise(ERR_LIB_OBJ, ERR_R_ASN1_LIB); 29 return NULL; 30 } 31 32 /* Set dynamic flags so everything gets freed up on error */ 33 34 r->flags = o->flags | (ASN1_OBJECT_FLAG_DYNAMIC | 35 ASN1_OBJECT_FLAG_DYNAMIC_STRINGS | 36 ASN1_OBJECT_FLAG_DYNAMIC_DATA); 37 38 if (o->length > 0 && (r->data = OPENSSL_memdup(o->data, o->length)) == NULL) 39 goto err; 40 41 r->length = o->length; 42 r->nid = o->nid; 43 44 if (o->ln != NULL && (r->ln = OPENSSL_strdup(o->ln)) == NULL) 45 goto err; 46 47 if (o->sn != NULL && (r->sn = OPENSSL_strdup(o->sn)) == NULL) 48 goto err; 49 50 return r; 51 err: 52 ASN1_OBJECT_free(r); 53 ERR_raise(ERR_LIB_OBJ, ERR_R_MALLOC_FAILURE); 54 return NULL; 55 } 56 OBJ_cmp(const ASN1_OBJECT * a,const ASN1_OBJECT * b)57int OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b) 58 { 59 int ret; 60 61 ret = (a->length - b->length); 62 if (ret) 63 return ret; 64 return memcmp(a->data, b->data, a->length); 65 } 66