diff options
Diffstat (limited to 'crypto/openssl/crypto/asn1/a_null.c')
| -rw-r--r-- | crypto/openssl/crypto/asn1/a_null.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/crypto/openssl/crypto/asn1/a_null.c b/crypto/openssl/crypto/asn1/a_null.c new file mode 100644 index 0000000..119fd78 --- /dev/null +++ b/crypto/openssl/crypto/asn1/a_null.c @@ -0,0 +1,119 @@ +/* a_null.c */ +/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL + * project 1999. + */ +/* ==================================================================== + * Copyright (c) 1999 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/asn1.h> + +/* ASN1 functions for NULL type. For compatibility with other ASN1 code + * it returns a pointer to an "ASN1_NULL" structure. The new/free functions + * don't need to do any allocating because nothing is stored in a NULL. + */ + +int i2d_ASN1_NULL(ASN1_NULL *a, unsigned char **pp) + { + if(!a) return 0; + if (pp) ASN1_put_object(pp,0,0,V_ASN1_NULL,V_ASN1_UNIVERSAL); + return 2; + } + +ASN1_NULL *d2i_ASN1_NULL(ASN1_NULL **a, unsigned char **pp, long length) + { + ASN1_NULL *ret = NULL; + unsigned char *p; + long len; + int inf,tag,xclass; + int i=0; + + p= *pp; + inf=ASN1_get_object(&p,&len,&tag,&xclass,length); + if (inf & 0x80) + { + i=ASN1_R_BAD_OBJECT_HEADER; + goto err; + } + + if (tag != V_ASN1_NULL) + { + i=ASN1_R_EXPECTING_A_NULL; + goto err; + } + + if (len != 0) + { + i=ASN1_R_NULL_IS_WRONG_LENGTH; + goto err; + } + ret=(ASN1_NULL *)1; + if (a != NULL) (*a)=ret; + *pp=p; + return(ret); +err: + ASN1err(ASN1_F_D2I_ASN1_NULL,i); + return(ret); + } + +ASN1_NULL *ASN1_NULL_new(void) +{ + return (ASN1_NULL *)1; +} + +void ASN1_NULL_free(ASN1_NULL *a) +{ + return; +} |
