diff options
Diffstat (limited to 'crypto/asn1/a_set.c')
| -rw-r--r-- | crypto/asn1/a_set.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/crypto/asn1/a_set.c b/crypto/asn1/a_set.c new file mode 100644 index 0000000000..5752fbb5fd --- /dev/null +++ b/crypto/asn1/a_set.c @@ -0,0 +1,149 @@ +/* crypto/asn1/a_set.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,ERR_R_MALLOC_FAILURE); + */ + +int i2d_ASN1_SET(a,pp,func,ex_tag,ex_class) +STACK *a; +unsigned char **pp; +int (*func)(); +int ex_tag; +int ex_class; + { + int ret=0,r; + int i; + unsigned char *p; + + if (a == NULL) return(0); + for (i=sk_num(a)-1; i>=0; i--) + ret+=func(sk_value(a,i),NULL); + r=ASN1_object_size(1,ret,ex_tag); + if (pp == NULL) return(r); + + p= *pp; + ASN1_put_object(&p,1,ret,ex_tag,ex_class); + for (i=0; i<sk_num(a); i++) + func(sk_value(a,i),&p); + + *pp=p; + return(r); + } + +STACK *d2i_ASN1_SET(a,pp,length,func,ex_tag,ex_class) +STACK **a; +unsigned char **pp; +long length; +char *(*func)(); +int ex_tag; +int ex_class; + { + ASN1_CTX c; + STACK *ret=NULL; + + if ((a == NULL) || ((*a) == NULL)) + { if ((ret=sk_new(NULL)) == NULL) goto err; } + else + ret=(*a); + + c.p= *pp; + c.max=(length == 0)?0:(c.p+length); + + c.inf=ASN1_get_object(&c.p,&c.slen,&c.tag,&c.xclass,c.max-c.p); + if (c.inf & 0x80) goto err; + if (ex_class != c.xclass) + { + ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_BAD_CLASS); + goto err; + } + if (ex_tag != c.tag) + { + ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_BAD_TAG); + goto err; + } + if ((c.slen+c.p) > c.max) + { + ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_LENGTH_ERROR); + goto err; + } + /* check for infinite constructed - it can be as long + * as the amount of data passed to us */ + if (c.inf == (V_ASN1_CONSTRUCTED+1)) + c.slen=length+ *pp-c.p; + c.max=c.p+c.slen; + + while (c.p < c.max) + { + char *s; + + if (M_ASN1_D2I_end_sequence()) break; + if ((s=func(NULL,&c.p,c.slen,c.max-c.p)) == NULL) goto err; + if (!sk_push(ret,s)) goto err; + } + if (a != NULL) (*a)=ret; + *pp=c.p; + return(ret); +err: + if ((ret != NULL) && ((a == NULL) || (*a != ret))) sk_free(ret); + return(NULL); + } + |