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 | ASN1_OBJECT_FLAG_DYNAMIC_STRINGS | ASN1_OBJECT_FLAG_DYNAMIC_DATA); 35 36 if (o->length > 0 && (r->data = OPENSSL_memdup(o->data, o->length)) == NULL) 37 goto err; 38 39 r->length = o->length; 40 r->nid = o->nid; 41 42 if (o->ln != NULL && (r->ln = OPENSSL_strdup(o->ln)) == NULL) 43 goto err; 44 45 if (o->sn != NULL && (r->sn = OPENSSL_strdup(o->sn)) == NULL) 46 goto err; 47 48 return r; 49 err: 50 ASN1_OBJECT_free(r); 51 return NULL; 52 } 53 OBJ_cmp(const ASN1_OBJECT * a,const ASN1_OBJECT * b)54int OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b) 55 { 56 int ret; 57 58 ret = (a->length - b->length); 59 if (ret) 60 return ret; 61 return memcmp(a->data, b->data, a->length); 62 } 63