diff options
Diffstat (limited to 'crypto/asn1/a_type.c')
| -rw-r--r-- | crypto/asn1/a_type.c | 317 |
1 files changed, 317 insertions, 0 deletions
diff --git a/crypto/asn1/a_type.c b/crypto/asn1/a_type.c new file mode 100644 index 0000000000..abaf70dcb8 --- /dev/null +++ b/crypto/asn1/a_type.c @@ -0,0 +1,317 @@ +/* crypto/asn1/a_type.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" + +/* ASN1err(ASN1_F_ASN1_TYPE_NEW,ASN1_R_ERROR_STACK); + * ASN1err(ASN1_F_D2I_ASN1_BYTES,ASN1_R_ERROR_STACK); + * ASN1err(ASN1_F_D2I_ASN1_BYTES,ASN1_R_WRONG_TAG); + * ASN1err(ASN1_F_ASN1_COLLATE_PRIMATIVE,ASN1_R_WRONG_TAG); + */ + +#ifndef NOPROTO +static void ASN1_TYPE_component_free(ASN1_TYPE *a); +#else +static void ASN1_TYPE_component_free(); +#endif + +int i2d_ASN1_TYPE(a,pp) +ASN1_TYPE *a; +unsigned char **pp; + { + int r=0; + + if (a == NULL) return(0); + + switch (a->type) + { + case V_ASN1_NULL: + if (pp != NULL) + ASN1_put_object(pp,0,0,V_ASN1_NULL,V_ASN1_UNIVERSAL); + r=2; + break; + case V_ASN1_INTEGER: + case V_ASN1_NEG_INTEGER: + r=i2d_ASN1_INTEGER(a->value.integer,pp); + break; + case V_ASN1_BIT_STRING: + r=i2d_ASN1_BIT_STRING(a->value.bit_string,pp); + break; + case V_ASN1_OCTET_STRING: + r=i2d_ASN1_OCTET_STRING(a->value.octet_string,pp); + break; + case V_ASN1_OBJECT: + r=i2d_ASN1_OBJECT(a->value.object,pp); + break; + case V_ASN1_PRINTABLESTRING: + r=M_i2d_ASN1_PRINTABLESTRING(a->value.printablestring,pp); + break; + case V_ASN1_T61STRING: + r=M_i2d_ASN1_T61STRING(a->value.t61string,pp); + break; + case V_ASN1_IA5STRING: + r=M_i2d_ASN1_IA5STRING(a->value.ia5string,pp); + break; + case V_ASN1_GENERALSTRING: + r=M_i2d_ASN1_GENERALSTRING(a->value.generalstring,pp); + break; + case V_ASN1_UNIVERSALSTRING: + r=M_i2d_ASN1_UNIVERSALSTRING(a->value.universalstring,pp); + break; + case V_ASN1_UTCTIME: + r=i2d_ASN1_UTCTIME(a->value.utctime,pp); + break; + case V_ASN1_SET: + case V_ASN1_SEQUENCE: + if (a->value.set == NULL) + r=0; + else + { + r=a->value.set->length; + if (pp != NULL) + { + memcpy(*pp,a->value.set->data,r); + *pp+=r; + } + } + break; + } + return(r); + } + +ASN1_TYPE *d2i_ASN1_TYPE(a,pp,length) +ASN1_TYPE **a; +unsigned char **pp; +long length; + { + ASN1_TYPE *ret=NULL; + unsigned char *q,*p,*max; + int inf,tag,xclass; + long len; + + if ((a == NULL) || ((*a) == NULL)) + { + if ((ret=ASN1_TYPE_new()) == NULL) goto err; + } + else + ret=(*a); + + p= *pp; + q=p; + max=(p+length); + + inf=ASN1_get_object(&q,&len,&tag,&xclass,length); + if (inf & 0x80) goto err; + + ASN1_TYPE_component_free(ret); + + switch (tag) + { + case V_ASN1_NULL: + p=q; + ret->value.ptr=NULL; + break; + case V_ASN1_INTEGER: + if ((ret->value.integer= + d2i_ASN1_INTEGER(NULL,&p,max-p)) == NULL) + goto err; + break; + case V_ASN1_BIT_STRING: + if ((ret->value.bit_string= + d2i_ASN1_BIT_STRING(NULL,&p,max-p)) == NULL) + goto err; + break; + case V_ASN1_OCTET_STRING: + if ((ret->value.octet_string= + d2i_ASN1_OCTET_STRING(NULL,&p,max-p)) == NULL) + goto err; + break; + case V_ASN1_OBJECT: + if ((ret->value.object= + d2i_ASN1_OBJECT(NULL,&p,max-p)) == NULL) + goto err; + break; + case V_ASN1_PRINTABLESTRING: + if ((ret->value.printablestring= + d2i_ASN1_PRINTABLESTRING(NULL,&p,max-p)) == NULL) + goto err; + break; + case V_ASN1_T61STRING: + if ((ret->value.t61string= + M_d2i_ASN1_T61STRING(NULL,&p,max-p)) == NULL) + goto err; + break; + case V_ASN1_IA5STRING: + if ((ret->value.ia5string= + M_d2i_ASN1_IA5STRING(NULL,&p,max-p)) == NULL) + goto err; + break; + case V_ASN1_GENERALSTRING: + if ((ret->value.generalstring= + M_d2i_ASN1_GENERALSTRING(NULL,&p,max-p)) == NULL) + goto err; + break; + case V_ASN1_UNIVERSALSTRING: + if ((ret->value.universalstring= + M_d2i_ASN1_UNIVERSALSTRING(NULL,&p,max-p)) == NULL) + goto err; + break; + case V_ASN1_UTCTIME: + if ((ret->value.utctime= + d2i_ASN1_UTCTIME(NULL,&p,max-p)) == NULL) + goto err; + break; + case V_ASN1_SET: + case V_ASN1_SEQUENCE: + /* Sets and sequences are left complete */ + if ((ret->value.set=ASN1_STRING_new()) == NULL) goto err; + ret->value.set->type=tag; + len+=(q-p); + if (!ASN1_STRING_set(ret->value.set,p,(int)len)) goto err; + p+=len; + break; + default: + ASN1err(ASN1_F_D2I_ASN1_TYPE,ASN1_R_BAD_TYPE); + goto err; + } + + ret->type=tag; + if (a != NULL) (*a)=ret; + *pp=p; + return(ret); +err: + if ((ret != NULL) && ((a == NULL) || (*a != ret))) ASN1_TYPE_free(ret); + return(NULL); + } + +ASN1_TYPE *ASN1_TYPE_new() + { + ASN1_TYPE *ret=NULL; + + M_ASN1_New_Malloc(ret,ASN1_TYPE); + ret->type= -1; + ret->value.ptr=NULL; + return(ret); + M_ASN1_New_Error(ASN1_F_ASN1_TYPE_NEW); + } + +void ASN1_TYPE_free(a) +ASN1_TYPE *a; + { + if (a == NULL) return; + ASN1_TYPE_component_free(a); + Free((char *)(char *)a); + } + +int ASN1_TYPE_get(a) +ASN1_TYPE *a; + { + if (a->value.ptr != NULL) + return(a->type); + else + return(0); + } + +void ASN1_TYPE_set(a,type,value) +ASN1_TYPE *a; +int type; +char *value; + { + if (a->value.ptr != NULL) + ASN1_TYPE_component_free(a); + a->type=type; + a->value.ptr=value; + } + +static void ASN1_TYPE_component_free(a) +ASN1_TYPE *a; + { + if (a == NULL) return; + + if (a->value.ptr != NULL) + { + switch (a->type) + { + case V_ASN1_OBJECT: + ASN1_OBJECT_free(a->value.object); + break; + case V_ASN1_INTEGER: + case V_ASN1_NEG_INTEGER: + case V_ASN1_BIT_STRING: + case V_ASN1_OCTET_STRING: + case V_ASN1_PRINTABLESTRING: + case V_ASN1_T61STRING: + case V_ASN1_IA5STRING: + case V_ASN1_UNIVERSALSTRING: + case V_ASN1_GENERALSTRING: + case V_ASN1_UTCTIME: + case V_ASN1_SET: + case V_ASN1_SEQUENCE: + ASN1_STRING_free((ASN1_STRING *)a->value.ptr); + break; + default: + /* MEMORY LEAK */ + break; + } + a->type=0; + a->value.ptr=NULL; + } + } + |