diff options
author | Ralf S. Engelschall <rse@openssl.org> | 1998-12-21 10:52:47 +0000 |
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committer | Ralf S. Engelschall <rse@openssl.org> | 1998-12-21 10:52:47 +0000 |
commit | d02b48c63a58ea4367a0e905979f140b7d090f86 (patch) | |
tree | 504f62ed3d84799f785b9cd9fab255a21b0e1b0e /crypto/asn1/p7_lib.c | |
download | openssl-d02b48c63a58ea4367a0e905979f140b7d090f86.tar.gz |
Import of old SSLeay release: SSLeay 0.8.1b
Diffstat (limited to 'crypto/asn1/p7_lib.c')
-rw-r--r-- | crypto/asn1/p7_lib.c | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/crypto/asn1/p7_lib.c b/crypto/asn1/p7_lib.c new file mode 100644 index 0000000000..b745df0944 --- /dev/null +++ b/crypto/asn1/p7_lib.c @@ -0,0 +1,299 @@ +/* crypto/asn1/p7_lib.c */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * 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 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 acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS 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 AUTHOR OR 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. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include "cryptlib.h" +#include "asn1_mac.h" +#include "objects.h" + +/* ASN1err(ASN1_F_D2I_PKCS7,ASN1_R_BAD_PKCS7_CONTENT); + * ASN1err(ASN1_F_I2D_PKCS7,ASN1_R_BAD_PKCS7_TYPE); + * ASN1err(ASN1_F_PKCS7_NEW,ASN1_R_BAD_PKCS7_TYPE); + */ + +int i2d_PKCS7(a,pp) +PKCS7 *a; +unsigned char **pp; + { + M_ASN1_I2D_vars(a); + + if (a->asn1 != NULL) + { + if (pp == NULL) + return((int)a->length); + memcpy(*pp,a->asn1,(int)a->length); + *pp+=a->length; + return((int)a->length); + } + + ret+=4; /* sequence, BER header plus '0 0' end padding */ + M_ASN1_I2D_len(a->type,i2d_ASN1_OBJECT); + if (a->d.ptr != NULL) + { + ret+=4; /* explicit tag [ 0 ] BER plus '0 0' */ + switch (OBJ_obj2nid(a->type)) + { + case NID_pkcs7_data: + M_ASN1_I2D_len(a->d.data,i2d_ASN1_OCTET_STRING); + break; + case NID_pkcs7_signed: + M_ASN1_I2D_len(a->d.sign,i2d_PKCS7_SIGNED); + break; + case NID_pkcs7_enveloped: + M_ASN1_I2D_len(a->d.enveloped,i2d_PKCS7_ENVELOPE); + break; + case NID_pkcs7_signedAndEnveloped: + M_ASN1_I2D_len(a->d.signed_and_enveloped, + i2d_PKCS7_SIGN_ENVELOPE); + break; + case NID_pkcs7_digest: + M_ASN1_I2D_len(a->d.digest,i2d_PKCS7_DIGEST); + break; + case NID_pkcs7_encrypted: + M_ASN1_I2D_len(a->d.encrypted,i2d_PKCS7_ENCRYPT); + break; + default: + break; + } + } + r=ret; + if (pp == NULL) return(r); + p= *pp; + M_ASN1_I2D_INF_seq_start(V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL); + M_ASN1_I2D_put(a->type,i2d_ASN1_OBJECT); + + if (a->d.ptr != NULL) + { + M_ASN1_I2D_INF_seq_start(0,V_ASN1_CONTEXT_SPECIFIC); + switch (OBJ_obj2nid(a->type)) + { + case NID_pkcs7_data: + M_ASN1_I2D_put(a->d.data,i2d_ASN1_OCTET_STRING); + break; + case NID_pkcs7_signed: + M_ASN1_I2D_put(a->d.sign,i2d_PKCS7_SIGNED); + break; + case NID_pkcs7_enveloped: + M_ASN1_I2D_put(a->d.enveloped,i2d_PKCS7_ENVELOPE); + break; + case NID_pkcs7_signedAndEnveloped: + M_ASN1_I2D_put(a->d.signed_and_enveloped, + i2d_PKCS7_SIGN_ENVELOPE); + break; + case NID_pkcs7_digest: + M_ASN1_I2D_put(a->d.digest,i2d_PKCS7_DIGEST); + break; + case NID_pkcs7_encrypted: + M_ASN1_I2D_put(a->d.encrypted,i2d_PKCS7_ENCRYPT); + break; + default: + break; + } + M_ASN1_I2D_INF_seq_end(); + } + M_ASN1_I2D_INF_seq_end(); + M_ASN1_I2D_finish(); + } + +PKCS7 *d2i_PKCS7(a,pp,length) +PKCS7 **a; +unsigned char **pp; +long length; + { + M_ASN1_D2I_vars(a,PKCS7 *,PKCS7_new); + + if ((a != NULL) && ((*a) != NULL)) + { + if ((*a)->asn1 != NULL) + { + Free((char *)(*a)->asn1); + (*a)->asn1=NULL; + } + (*a)->length=0; + } + + M_ASN1_D2I_Init(); + M_ASN1_D2I_start_sequence(); + M_ASN1_D2I_get(ret->type,d2i_ASN1_OBJECT); + if (!M_ASN1_D2I_end_sequence()) + { + int Tinf,Ttag,Tclass; + long Tlen; + + if (M_ASN1_next != (V_ASN1_CONSTRUCTED| + V_ASN1_CONTEXT_SPECIFIC|0)) + { + c.error=ASN1_R_BAD_PKCS7_CONTENT; + goto err; + } + + ret->detached=0; + + c.q=c.p; + Tinf=ASN1_get_object(&c.p,&Tlen,&Ttag,&Tclass, + (c.inf & 1)?(length+ *pp-c.q):c.slen); + if (Tinf & 0x80) goto err; + c.slen-=(c.p-c.q); + + switch (OBJ_obj2nid(ret->type)) + { + case NID_pkcs7_data: + M_ASN1_D2I_get(ret->d.data,d2i_ASN1_OCTET_STRING); + break; + case NID_pkcs7_signed: + M_ASN1_D2I_get(ret->d.sign,d2i_PKCS7_SIGNED); + if (ret->d.sign->contents->d.ptr == NULL) + ret->detached=1; + break; + case NID_pkcs7_enveloped: + M_ASN1_D2I_get(ret->d.enveloped,d2i_PKCS7_ENVELOPE); + break; + case NID_pkcs7_signedAndEnveloped: + M_ASN1_D2I_get(ret->d.signed_and_enveloped, + d2i_PKCS7_SIGN_ENVELOPE); + break; + case NID_pkcs7_digest: + M_ASN1_D2I_get(ret->d.digest,d2i_PKCS7_DIGEST); + break; + case NID_pkcs7_encrypted: + M_ASN1_D2I_get(ret->d.encrypted,d2i_PKCS7_ENCRYPT); + break; + default: + c.error=ASN1_R_BAD_PKCS7_TYPE; + goto err; + break; + } + if (Tinf == (1|V_ASN1_CONSTRUCTED)) + { + if (!ASN1_check_infinite_end(&c.p,c.slen)) + { + c.error=ASN1_R_MISSING_EOS; + goto err; + } + } + } + else + ret->detached=1; + + M_ASN1_D2I_Finish(a,PKCS7_free,ASN1_F_D2I_PKCS7); + } + +PKCS7 *PKCS7_new() + { + PKCS7 *ret=NULL; + + M_ASN1_New_Malloc(ret,PKCS7); + ret->type=ASN1_OBJECT_new(); + ret->asn1=NULL; + ret->length=0; + ret->detached=0; + ret->d.ptr=NULL; + return(ret); + M_ASN1_New_Error(ASN1_F_PKCS7_NEW); + } + +void PKCS7_free(a) +PKCS7 *a; + { + if (a == NULL) return; + + PKCS7_content_free(a); + if (a->type != NULL) + { + ASN1_OBJECT_free(a->type); + } + Free((char *)(char *)a); + } + +void PKCS7_content_free(a) +PKCS7 *a; + { + if (a->asn1 != NULL) Free((char *)a->asn1); + + if (a->d.ptr != NULL) + { + if (a->type == NULL) return; + + switch (OBJ_obj2nid(a->type)) + { + case NID_pkcs7_data: + ASN1_OCTET_STRING_free(a->d.data); + break; + case NID_pkcs7_signed: + PKCS7_SIGNED_free(a->d.sign); + break; + case NID_pkcs7_enveloped: + PKCS7_ENVELOPE_free(a->d.enveloped); + break; + case NID_pkcs7_signedAndEnveloped: + PKCS7_SIGN_ENVELOPE_free(a->d.signed_and_enveloped); + break; + case NID_pkcs7_digest: + PKCS7_DIGEST_free(a->d.digest); + break; + case NID_pkcs7_encrypted: + PKCS7_ENCRYPT_free(a->d.encrypted); + break; + default: + /* MEMORY LEAK */ + break; + } + } + a->d.ptr=NULL; + } + |