diff options
Diffstat (limited to 'thirdparty/openssl/crypto/asn1/asn_pack.c')
| -rw-r--r-- | thirdparty/openssl/crypto/asn1/asn_pack.c | 207 | 
1 files changed, 207 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/asn1/asn_pack.c b/thirdparty/openssl/crypto/asn1/asn_pack.c new file mode 100644 index 0000000000..366caf01f0 --- /dev/null +++ b/thirdparty/openssl/crypto/asn1/asn_pack.c @@ -0,0 +1,207 @@ +/* asn_pack.c */ +/* + * Written by Dr Stephen N Henson (steve@openssl.org) 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> + +#ifndef NO_ASN1_OLD + +/* ASN1 packing and unpacking functions */ + +/* Turn an ASN1 encoded SEQUENCE OF into a STACK of structures */ + +STACK_OF(OPENSSL_BLOCK) *ASN1_seq_unpack(const unsigned char *buf, int len, +                                         d2i_of_void *d2i, +                                         void (*free_func) (OPENSSL_BLOCK)) +{ +    STACK_OF(OPENSSL_BLOCK) *sk; +    const unsigned char *pbuf; +    pbuf = buf; +    if (!(sk = d2i_ASN1_SET(NULL, &pbuf, len, d2i, free_func, +                            V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL))) +        ASN1err(ASN1_F_ASN1_SEQ_UNPACK, ASN1_R_DECODE_ERROR); +    return sk; +} + +/* + * Turn a STACK structures into an ASN1 encoded SEQUENCE OF structure in a + * OPENSSL_malloc'ed buffer + */ + +unsigned char *ASN1_seq_pack(STACK_OF(OPENSSL_BLOCK) *safes, i2d_of_void *i2d, +                             unsigned char **buf, int *len) +{ +    int safelen; +    unsigned char *safe, *p; +    if (!(safelen = i2d_ASN1_SET(safes, NULL, i2d, V_ASN1_SEQUENCE, +                                 V_ASN1_UNIVERSAL, IS_SEQUENCE))) { +        ASN1err(ASN1_F_ASN1_SEQ_PACK, ASN1_R_ENCODE_ERROR); +        return NULL; +    } +    if (!(safe = OPENSSL_malloc(safelen))) { +        ASN1err(ASN1_F_ASN1_SEQ_PACK, ERR_R_MALLOC_FAILURE); +        return NULL; +    } +    p = safe; +    i2d_ASN1_SET(safes, &p, i2d, V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL, +                 IS_SEQUENCE); +    if (len) +        *len = safelen; +    if (buf) +        *buf = safe; +    return safe; +} + +/* Extract an ASN1 object from an ASN1_STRING */ + +void *ASN1_unpack_string(ASN1_STRING *oct, d2i_of_void *d2i) +{ +    const unsigned char *p; +    char *ret; + +    p = oct->data; +    if (!(ret = d2i(NULL, &p, oct->length))) +        ASN1err(ASN1_F_ASN1_UNPACK_STRING, ASN1_R_DECODE_ERROR); +    return ret; +} + +/* Pack an ASN1 object into an ASN1_STRING */ + +ASN1_STRING *ASN1_pack_string(void *obj, i2d_of_void *i2d, ASN1_STRING **oct) +{ +    unsigned char *p; +    ASN1_STRING *octmp; + +    if (!oct || !*oct) { +        if (!(octmp = ASN1_STRING_new())) { +            ASN1err(ASN1_F_ASN1_PACK_STRING, ERR_R_MALLOC_FAILURE); +            return NULL; +        } +        if (oct) +            *oct = octmp; +    } else +        octmp = *oct; + +    if (!(octmp->length = i2d(obj, NULL))) { +        ASN1err(ASN1_F_ASN1_PACK_STRING, ASN1_R_ENCODE_ERROR); +        goto err; +    } +    if (!(p = OPENSSL_malloc(octmp->length))) { +        ASN1err(ASN1_F_ASN1_PACK_STRING, ERR_R_MALLOC_FAILURE); +        goto err; +    } +    octmp->data = p; +    i2d(obj, &p); +    return octmp; + err: +    if (!oct || !*oct) { +        ASN1_STRING_free(octmp); +        if (oct) +            *oct = NULL; +    } +    return NULL; +} + +#endif + +/* ASN1_ITEM versions of the above */ + +ASN1_STRING *ASN1_item_pack(void *obj, const ASN1_ITEM *it, ASN1_STRING **oct) +{ +    ASN1_STRING *octmp; + +    if (!oct || !*oct) { +        if (!(octmp = ASN1_STRING_new())) { +            ASN1err(ASN1_F_ASN1_ITEM_PACK, ERR_R_MALLOC_FAILURE); +            return NULL; +        } +        if (oct) +            *oct = octmp; +    } else +        octmp = *oct; + +    if (octmp->data) { +        OPENSSL_free(octmp->data); +        octmp->data = NULL; +    } + +    if (!(octmp->length = ASN1_item_i2d(obj, &octmp->data, it))) { +        ASN1err(ASN1_F_ASN1_ITEM_PACK, ASN1_R_ENCODE_ERROR); +        return NULL; +    } +    if (!octmp->data) { +        ASN1err(ASN1_F_ASN1_ITEM_PACK, ERR_R_MALLOC_FAILURE); +        return NULL; +    } +    return octmp; +} + +/* Extract an ASN1 object from an ASN1_STRING */ + +void *ASN1_item_unpack(ASN1_STRING *oct, const ASN1_ITEM *it) +{ +    const unsigned char *p; +    void *ret; + +    p = oct->data; +    if (!(ret = ASN1_item_d2i(NULL, &p, oct->length, it))) +        ASN1err(ASN1_F_ASN1_ITEM_UNPACK, ASN1_R_DECODE_ERROR); +    return ret; +}  |