diff options
Diffstat (limited to 'openssl/crypto/asn1/a_object.c')
| -rw-r--r-- | openssl/crypto/asn1/a_object.c | 403 |
1 files changed, 403 insertions, 0 deletions
diff --git a/openssl/crypto/asn1/a_object.c b/openssl/crypto/asn1/a_object.c new file mode 100644 index 00000000..3978c915 --- /dev/null +++ b/openssl/crypto/asn1/a_object.c @@ -0,0 +1,403 @@ +/* crypto/asn1/a_object.c */ +/* Copyright (C) 1995-1998 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 <limits.h> +#include "cryptlib.h" +#include <openssl/buffer.h> +#include <openssl/asn1.h> +#include <openssl/objects.h> +#include <openssl/bn.h> + +int i2d_ASN1_OBJECT(ASN1_OBJECT *a, unsigned char **pp) + { + unsigned char *p; + int objsize; + + if ((a == NULL) || (a->data == NULL)) return(0); + + objsize = ASN1_object_size(0,a->length,V_ASN1_OBJECT); + if (pp == NULL) return objsize; + + p= *pp; + ASN1_put_object(&p,0,a->length,V_ASN1_OBJECT,V_ASN1_UNIVERSAL); + memcpy(p,a->data,a->length); + p+=a->length; + + *pp=p; + return(objsize); + } + +int a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num) + { + int i,first,len=0,c, use_bn; + char ftmp[24], *tmp = ftmp; + int tmpsize = sizeof ftmp; + const char *p; + unsigned long l; + BIGNUM *bl = NULL; + + if (num == 0) + return(0); + else if (num == -1) + num=strlen(buf); + + p=buf; + c= *(p++); + num--; + if ((c >= '0') && (c <= '2')) + { + first= c-'0'; + } + else + { + ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_FIRST_NUM_TOO_LARGE); + goto err; + } + + if (num <= 0) + { + ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_MISSING_SECOND_NUMBER); + goto err; + } + c= *(p++); + num--; + for (;;) + { + if (num <= 0) break; + if ((c != '.') && (c != ' ')) + { + ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_INVALID_SEPARATOR); + goto err; + } + l=0; + use_bn = 0; + for (;;) + { + if (num <= 0) break; + num--; + c= *(p++); + if ((c == ' ') || (c == '.')) + break; + if ((c < '0') || (c > '9')) + { + ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_INVALID_DIGIT); + goto err; + } + if (!use_bn && l >= ((ULONG_MAX - 80) / 10L)) + { + use_bn = 1; + if (!bl) + bl = BN_new(); + if (!bl || !BN_set_word(bl, l)) + goto err; + } + if (use_bn) + { + if (!BN_mul_word(bl, 10L) + || !BN_add_word(bl, c-'0')) + goto err; + } + else + l=l*10L+(long)(c-'0'); + } + if (len == 0) + { + if ((first < 2) && (l >= 40)) + { + ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_SECOND_NUMBER_TOO_LARGE); + goto err; + } + if (use_bn) + { + if (!BN_add_word(bl, first * 40)) + goto err; + } + else + l+=(long)first*40; + } + i=0; + if (use_bn) + { + int blsize; + blsize = BN_num_bits(bl); + blsize = (blsize + 6)/7; + if (blsize > tmpsize) + { + if (tmp != ftmp) + OPENSSL_free(tmp); + tmpsize = blsize + 32; + tmp = OPENSSL_malloc(tmpsize); + if (!tmp) + goto err; + } + while(blsize--) + tmp[i++] = (unsigned char)BN_div_word(bl, 0x80L); + } + else + { + + for (;;) + { + tmp[i++]=(unsigned char)l&0x7f; + l>>=7L; + if (l == 0L) break; + } + + } + if (out != NULL) + { + if (len+i > olen) + { + ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_BUFFER_TOO_SMALL); + goto err; + } + while (--i > 0) + out[len++]=tmp[i]|0x80; + out[len++]=tmp[0]; + } + else + len+=i; + } + if (tmp != ftmp) + OPENSSL_free(tmp); + if (bl) + BN_free(bl); + return(len); +err: + if (tmp != ftmp) + OPENSSL_free(tmp); + if (bl) + BN_free(bl); + return(0); + } + +int i2t_ASN1_OBJECT(char *buf, int buf_len, ASN1_OBJECT *a) +{ + return OBJ_obj2txt(buf, buf_len, a, 0); +} + +int i2a_ASN1_OBJECT(BIO *bp, ASN1_OBJECT *a) + { + char buf[80], *p = buf; + int i; + + if ((a == NULL) || (a->data == NULL)) + return(BIO_write(bp,"NULL",4)); + i=i2t_ASN1_OBJECT(buf,sizeof buf,a); + if (i > (int)(sizeof(buf) - 1)) + { + p = OPENSSL_malloc(i + 1); + if (!p) + return -1; + i2t_ASN1_OBJECT(p,i + 1,a); + } + if (i <= 0) + return BIO_write(bp, "<INVALID>", 9); + BIO_write(bp,p,i); + if (p != buf) + OPENSSL_free(p); + return(i); + } + +ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp, + long length) +{ + const unsigned char *p; + long len; + int tag,xclass; + int inf,i; + ASN1_OBJECT *ret = NULL; + 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_OBJECT) + { + i=ASN1_R_EXPECTING_AN_OBJECT; + goto err; + } + ret = c2i_ASN1_OBJECT(a, &p, len); + if(ret) *pp = p; + return ret; +err: + ASN1err(ASN1_F_D2I_ASN1_OBJECT,i); + return(NULL); +} +ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp, + long len) + { + ASN1_OBJECT *ret=NULL; + const unsigned char *p; + unsigned char *data; + int i; + /* Sanity check OID encoding: can't have leading 0x80 in + * subidentifiers, see: X.690 8.19.2 + */ + for (i = 0, p = *pp; i < len; i++, p++) + { + if (*p == 0x80 && (!i || !(p[-1] & 0x80))) + { + ASN1err(ASN1_F_C2I_ASN1_OBJECT,ASN1_R_INVALID_OBJECT_ENCODING); + return NULL; + } + } + + /* only the ASN1_OBJECTs from the 'table' will have values + * for ->sn or ->ln */ + if ((a == NULL) || ((*a) == NULL) || + !((*a)->flags & ASN1_OBJECT_FLAG_DYNAMIC)) + { + if ((ret=ASN1_OBJECT_new()) == NULL) return(NULL); + } + else ret=(*a); + + p= *pp; + /* detach data from object */ + data = (unsigned char *)ret->data; + ret->data = NULL; + /* once detached we can change it */ + if ((data == NULL) || (ret->length < len)) + { + ret->length=0; + if (data != NULL) OPENSSL_free(data); + data=(unsigned char *)OPENSSL_malloc(len ? (int)len : 1); + if (data == NULL) + { i=ERR_R_MALLOC_FAILURE; goto err; } + ret->flags|=ASN1_OBJECT_FLAG_DYNAMIC_DATA; + } + memcpy(data,p,(int)len); + /* reattach data to object, after which it remains const */ + ret->data =data; + ret->length=(int)len; + ret->sn=NULL; + ret->ln=NULL; + /* ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; we know it is dynamic */ + p+=len; + + if (a != NULL) (*a)=ret; + *pp=p; + return(ret); +err: + ASN1err(ASN1_F_C2I_ASN1_OBJECT,i); + if ((ret != NULL) && ((a == NULL) || (*a != ret))) + ASN1_OBJECT_free(ret); + return(NULL); + } + +ASN1_OBJECT *ASN1_OBJECT_new(void) + { + ASN1_OBJECT *ret; + + ret=(ASN1_OBJECT *)OPENSSL_malloc(sizeof(ASN1_OBJECT)); + if (ret == NULL) + { + ASN1err(ASN1_F_ASN1_OBJECT_NEW,ERR_R_MALLOC_FAILURE); + return(NULL); + } + ret->length=0; + ret->data=NULL; + ret->nid=0; + ret->sn=NULL; + ret->ln=NULL; + ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; + return(ret); + } + +void ASN1_OBJECT_free(ASN1_OBJECT *a) + { + if (a == NULL) return; + if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_STRINGS) + { +#ifndef CONST_STRICT /* disable purely for compile-time strict const checking. Doing this on a "real" compile will cause memory leaks */ + if (a->sn != NULL) OPENSSL_free((void *)a->sn); + if (a->ln != NULL) OPENSSL_free((void *)a->ln); +#endif + a->sn=a->ln=NULL; + } + if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA) + { + if (a->data != NULL) OPENSSL_free((void *)a->data); + a->data=NULL; + a->length=0; + } + if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC) + OPENSSL_free(a); + } + +ASN1_OBJECT *ASN1_OBJECT_create(int nid, unsigned char *data, int len, + const char *sn, const char *ln) + { + ASN1_OBJECT o; + + o.sn=sn; + o.ln=ln; + o.data=data; + o.nid=nid; + o.length=len; + o.flags=ASN1_OBJECT_FLAG_DYNAMIC|ASN1_OBJECT_FLAG_DYNAMIC_STRINGS| + ASN1_OBJECT_FLAG_DYNAMIC_DATA; + return(OBJ_dup(&o)); + } + +IMPLEMENT_STACK_OF(ASN1_OBJECT) +IMPLEMENT_ASN1_SET_OF(ASN1_OBJECT) |