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path: root/main/openssl/crypto/asn1/a_int.c
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Diffstat (limited to 'main/openssl/crypto/asn1/a_int.c')
m---------main/openssl0
-rw-r--r--main/openssl/crypto/asn1/a_int.c458
2 files changed, 0 insertions, 458 deletions
diff --git a/main/openssl b/main/openssl
new file mode 160000
+Subproject 4d377a9ce111930d8a8f06dc0e94a892a7f6c51
diff --git a/main/openssl/crypto/asn1/a_int.c b/main/openssl/crypto/asn1/a_int.c
deleted file mode 100644
index 297c45a9..00000000
--- a/main/openssl/crypto/asn1/a_int.c
+++ /dev/null
@@ -1,458 +0,0 @@
-/* crypto/asn1/a_int.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 "cryptlib.h"
-#include <openssl/asn1.h>
-#include <openssl/bn.h>
-
-ASN1_INTEGER *ASN1_INTEGER_dup(const ASN1_INTEGER *x)
-{ return M_ASN1_INTEGER_dup(x);}
-
-int ASN1_INTEGER_cmp(const ASN1_INTEGER *x, const ASN1_INTEGER *y)
- {
- int neg, ret;
- /* Compare signs */
- neg = x->type & V_ASN1_NEG;
- if (neg != (y->type & V_ASN1_NEG))
- {
- if (neg)
- return -1;
- else
- return 1;
- }
-
- ret = ASN1_STRING_cmp(x, y);
-
- if (neg)
- return -ret;
- else
- return ret;
- }
-
-
-/*
- * This converts an ASN1 INTEGER into its content encoding.
- * The internal representation is an ASN1_STRING whose data is a big endian
- * representation of the value, ignoring the sign. The sign is determined by
- * the type: V_ASN1_INTEGER for positive and V_ASN1_NEG_INTEGER for negative.
- *
- * Positive integers are no problem: they are almost the same as the DER
- * encoding, except if the first byte is >= 0x80 we need to add a zero pad.
- *
- * Negative integers are a bit trickier...
- * The DER representation of negative integers is in 2s complement form.
- * The internal form is converted by complementing each octet and finally
- * adding one to the result. This can be done less messily with a little trick.
- * If the internal form has trailing zeroes then they will become FF by the
- * complement and 0 by the add one (due to carry) so just copy as many trailing
- * zeros to the destination as there are in the source. The carry will add one
- * to the last none zero octet: so complement this octet and add one and finally
- * complement any left over until you get to the start of the string.
- *
- * Padding is a little trickier too. If the first bytes is > 0x80 then we pad
- * with 0xff. However if the first byte is 0x80 and one of the following bytes
- * is non-zero we pad with 0xff. The reason for this distinction is that 0x80
- * followed by optional zeros isn't padded.
- */
-
-int i2c_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **pp)
- {
- int pad=0,ret,i,neg;
- unsigned char *p,*n,pb=0;
-
- if (a == NULL) return(0);
- neg=a->type & V_ASN1_NEG;
- if (a->length == 0)
- ret=1;
- else
- {
- ret=a->length;
- i=a->data[0];
- if (!neg && (i > 127)) {
- pad=1;
- pb=0;
- } else if(neg) {
- if(i>128) {
- pad=1;
- pb=0xFF;
- } else if(i == 128) {
- /*
- * Special case: if any other bytes non zero we pad:
- * otherwise we don't.
- */
- for(i = 1; i < a->length; i++) if(a->data[i]) {
- pad=1;
- pb=0xFF;
- break;
- }
- }
- }
- ret+=pad;
- }
- if (pp == NULL) return(ret);
- p= *pp;
-
- if (pad) *(p++)=pb;
- if (a->length == 0) *(p++)=0;
- else if (!neg) memcpy(p,a->data,(unsigned int)a->length);
- else {
- /* Begin at the end of the encoding */
- n=a->data + a->length - 1;
- p += a->length - 1;
- i = a->length;
- /* Copy zeros to destination as long as source is zero */
- while(!*n) {
- *(p--) = 0;
- n--;
- i--;
- }
- /* Complement and increment next octet */
- *(p--) = ((*(n--)) ^ 0xff) + 1;
- i--;
- /* Complement any octets left */
- for(;i > 0; i--) *(p--) = *(n--) ^ 0xff;
- }
-
- *pp+=ret;
- return(ret);
- }
-
-/* Convert just ASN1 INTEGER content octets to ASN1_INTEGER structure */
-
-ASN1_INTEGER *c2i_ASN1_INTEGER(ASN1_INTEGER **a, const unsigned char **pp,
- long len)
- {
- ASN1_INTEGER *ret=NULL;
- const unsigned char *p, *pend;
- unsigned char *to,*s;
- int i;
-
- if ((a == NULL) || ((*a) == NULL))
- {
- if ((ret=M_ASN1_INTEGER_new()) == NULL) return(NULL);
- ret->type=V_ASN1_INTEGER;
- }
- else
- ret=(*a);
-
- p= *pp;
- pend = p + len;
-
- /* We must OPENSSL_malloc stuff, even for 0 bytes otherwise it
- * signifies a missing NULL parameter. */
- s=(unsigned char *)OPENSSL_malloc((int)len+1);
- if (s == NULL)
- {
- i=ERR_R_MALLOC_FAILURE;
- goto err;
- }
- to=s;
- if(!len) {
- /* Strictly speaking this is an illegal INTEGER but we
- * tolerate it.
- */
- ret->type=V_ASN1_INTEGER;
- } else if (*p & 0x80) /* a negative number */
- {
- ret->type=V_ASN1_NEG_INTEGER;
- if ((*p == 0xff) && (len != 1)) {
- p++;
- len--;
- }
- i = len;
- p += i - 1;
- to += i - 1;
- while((!*p) && i) {
- *(to--) = 0;
- i--;
- p--;
- }
- /* Special case: if all zeros then the number will be of
- * the form FF followed by n zero bytes: this corresponds to
- * 1 followed by n zero bytes. We've already written n zeros
- * so we just append an extra one and set the first byte to
- * a 1. This is treated separately because it is the only case
- * where the number of bytes is larger than len.
- */
- if(!i) {
- *s = 1;
- s[len] = 0;
- len++;
- } else {
- *(to--) = (*(p--) ^ 0xff) + 1;
- i--;
- for(;i > 0; i--) *(to--) = *(p--) ^ 0xff;
- }
- } else {
- ret->type=V_ASN1_INTEGER;
- if ((*p == 0) && (len != 1))
- {
- p++;
- len--;
- }
- memcpy(s,p,(int)len);
- }
-
- if (ret->data != NULL) OPENSSL_free(ret->data);
- ret->data=s;
- ret->length=(int)len;
- if (a != NULL) (*a)=ret;
- *pp=pend;
- return(ret);
-err:
- ASN1err(ASN1_F_C2I_ASN1_INTEGER,i);
- if ((ret != NULL) && ((a == NULL) || (*a != ret)))
- M_ASN1_INTEGER_free(ret);
- return(NULL);
- }
-
-
-/* This is a version of d2i_ASN1_INTEGER that ignores the sign bit of
- * ASN1 integers: some broken software can encode a positive INTEGER
- * with its MSB set as negative (it doesn't add a padding zero).
- */
-
-ASN1_INTEGER *d2i_ASN1_UINTEGER(ASN1_INTEGER **a, const unsigned char **pp,
- long length)
- {
- ASN1_INTEGER *ret=NULL;
- const unsigned char *p;
- unsigned char *s;
- long len;
- int inf,tag,xclass;
- int i;
-
- if ((a == NULL) || ((*a) == NULL))
- {
- if ((ret=M_ASN1_INTEGER_new()) == NULL) return(NULL);
- ret->type=V_ASN1_INTEGER;
- }
- else
- ret=(*a);
-
- 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_INTEGER)
- {
- i=ASN1_R_EXPECTING_AN_INTEGER;
- goto err;
- }
-
- /* We must OPENSSL_malloc stuff, even for 0 bytes otherwise it
- * signifies a missing NULL parameter. */
- s=(unsigned char *)OPENSSL_malloc((int)len+1);
- if (s == NULL)
- {
- i=ERR_R_MALLOC_FAILURE;
- goto err;
- }
- ret->type=V_ASN1_INTEGER;
- if(len) {
- if ((*p == 0) && (len != 1))
- {
- p++;
- len--;
- }
- memcpy(s,p,(int)len);
- p+=len;
- }
-
- if (ret->data != NULL) OPENSSL_free(ret->data);
- ret->data=s;
- ret->length=(int)len;
- if (a != NULL) (*a)=ret;
- *pp=p;
- return(ret);
-err:
- ASN1err(ASN1_F_D2I_ASN1_UINTEGER,i);
- if ((ret != NULL) && ((a == NULL) || (*a != ret)))
- M_ASN1_INTEGER_free(ret);
- return(NULL);
- }
-
-int ASN1_INTEGER_set(ASN1_INTEGER *a, long v)
- {
- int j,k;
- unsigned int i;
- unsigned char buf[sizeof(long)+1];
- long d;
-
- a->type=V_ASN1_INTEGER;
- if (a->length < (int)(sizeof(long)+1))
- {
- if (a->data != NULL)
- OPENSSL_free(a->data);
- if ((a->data=(unsigned char *)OPENSSL_malloc(sizeof(long)+1)) != NULL)
- memset((char *)a->data,0,sizeof(long)+1);
- }
- if (a->data == NULL)
- {
- ASN1err(ASN1_F_ASN1_INTEGER_SET,ERR_R_MALLOC_FAILURE);
- return(0);
- }
- d=v;
- if (d < 0)
- {
- d= -d;
- a->type=V_ASN1_NEG_INTEGER;
- }
-
- for (i=0; i<sizeof(long); i++)
- {
- if (d == 0) break;
- buf[i]=(int)d&0xff;
- d>>=8;
- }
- j=0;
- for (k=i-1; k >=0; k--)
- a->data[j++]=buf[k];
- a->length=j;
- return(1);
- }
-
-long ASN1_INTEGER_get(const ASN1_INTEGER *a)
- {
- int neg=0,i;
- long r=0;
-
- if (a == NULL) return(0L);
- i=a->type;
- if (i == V_ASN1_NEG_INTEGER)
- neg=1;
- else if (i != V_ASN1_INTEGER)
- return -1;
-
- if (a->length > (int)sizeof(long))
- {
- /* hmm... a bit ugly, return all ones */
- return -1;
- }
- if (a->data == NULL)
- return 0;
-
- for (i=0; i<a->length; i++)
- {
- r<<=8;
- r|=(unsigned char)a->data[i];
- }
- if (neg) r= -r;
- return(r);
- }
-
-ASN1_INTEGER *BN_to_ASN1_INTEGER(const BIGNUM *bn, ASN1_INTEGER *ai)
- {
- ASN1_INTEGER *ret;
- int len,j;
-
- if (ai == NULL)
- ret=M_ASN1_INTEGER_new();
- else
- ret=ai;
- if (ret == NULL)
- {
- ASN1err(ASN1_F_BN_TO_ASN1_INTEGER,ERR_R_NESTED_ASN1_ERROR);
- goto err;
- }
- if (BN_is_negative(bn))
- ret->type = V_ASN1_NEG_INTEGER;
- else ret->type=V_ASN1_INTEGER;
- j=BN_num_bits(bn);
- len=((j == 0)?0:((j/8)+1));
- if (ret->length < len+4)
- {
- unsigned char *new_data=OPENSSL_realloc(ret->data, len+4);
- if (!new_data)
- {
- ASN1err(ASN1_F_BN_TO_ASN1_INTEGER,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- ret->data=new_data;
- }
- ret->length=BN_bn2bin(bn,ret->data);
- /* Correct zero case */
- if(!ret->length)
- {
- ret->data[0] = 0;
- ret->length = 1;
- }
- return(ret);
-err:
- if (ret != ai) M_ASN1_INTEGER_free(ret);
- return(NULL);
- }
-
-BIGNUM *ASN1_INTEGER_to_BN(const ASN1_INTEGER *ai, BIGNUM *bn)
- {
- BIGNUM *ret;
-
- if ((ret=BN_bin2bn(ai->data,ai->length,bn)) == NULL)
- ASN1err(ASN1_F_ASN1_INTEGER_TO_BN,ASN1_R_BN_LIB);
- else if(ai->type == V_ASN1_NEG_INTEGER)
- BN_set_negative(ret, 1);
- return(ret);
- }
-
-IMPLEMENT_STACK_OF(ASN1_INTEGER)
-IMPLEMENT_ASN1_SET_OF(ASN1_INTEGER)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 12:38:28 +0000