1 /* crypto/objects/obj_lib.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #include <stdio.h> 60 #include "cryptlib.h" 61 #include <openssl/lhash.h> 62 #include <openssl/objects.h> 63 #include <openssl/buffer.h> 64 65 ASN1_OBJECT *OBJ_dup(const ASN1_OBJECT *o) 66 { 67 ASN1_OBJECT *r; 68 int i; 69 char *ln=NULL; 70 71 if (o == NULL) return(NULL); 72 if (!(o->flags & ASN1_OBJECT_FLAG_DYNAMIC)) 73 return((ASN1_OBJECT *)o); /* XXX: ugh! Why? What kind of 74 duplication is this??? */ 75 76 r=ASN1_OBJECT_new(); 77 if (r == NULL) 78 { 79 OBJerr(OBJ_F_OBJ_DUP,ERR_R_ASN1_LIB); 80 return(NULL); 81 } 82 r->data=OPENSSL_malloc(o->length); 83 if (r->data == NULL) 84 goto err; 85 if (o->data != NULL) 86 memcpy(r->data,o->data,o->length); 87 r->length=o->length; 88 r->nid=o->nid; 89 r->ln=r->sn=NULL; 90 if (o->ln != NULL) 91 { 92 i=strlen(o->ln)+1; 93 r->ln=ln=OPENSSL_malloc(i); 94 if (r->ln == NULL) goto err; 95 memcpy(ln,o->ln,i); 96 } 97 98 if (o->sn != NULL) 99 { 100 char *s; 101 102 i=strlen(o->sn)+1; 103 r->sn=s=OPENSSL_malloc(i); 104 if (r->sn == NULL) goto err; 105 memcpy(s,o->sn,i); 106 } 107 r->flags=o->flags|(ASN1_OBJECT_FLAG_DYNAMIC| 108 ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|ASN1_OBJECT_FLAG_DYNAMIC_DATA); 109 return(r); 110 err: 111 OBJerr(OBJ_F_OBJ_DUP,ERR_R_MALLOC_FAILURE); 112 if (r != NULL) 113 { 114 if (ln != NULL) OPENSSL_free(ln); 115 if (r->data != NULL) OPENSSL_free(r->data); 116 OPENSSL_free(r); 117 } 118 return(NULL); 119 } 120 121 int OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b) 122 { 123 int ret; 124 125 ret=(a->length-b->length); 126 if (ret) return(ret); 127 return(memcmp(a->data,b->data,a->length)); 128 } 129