-/* crypto/bn/bn_print.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2017 The OpenSSL Project Authors. 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.]
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
-#include <ctype.h>
-#include "cryptlib.h"
-#include <openssl/buffer.h>
-#include "bn_lcl.h"
-
-const static char *Hex="0123456789ABCDEF";
-
-/* Must 'Free' the returned data */
-char *BN_bn2hex(BIGNUM *a)
- {
- int i,j,v,z=0;
- char *buf;
- char *p;
-
- buf=(char *)Malloc(a->top*BN_BYTES*2+2);
- if (buf == NULL)
- {
- BNerr(BN_F_BN_BN2HEX,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- p=buf;
- if (a->neg) *(p++)='-';
- if (a->top == 0) *(p++)='0';
- for (i=a->top-1; i >=0; i--)
- {
- for (j=BN_BITS2-8; j >= 0; j-=8)
- {
- /* strip leading zeros */
- v=((int)(a->d[i]>>(long)j))&0xff;
- if (z || (v != 0))
- {
- *(p++)=Hex[v>>4];
- *(p++)=Hex[v&0x0f];
- z=1;
- }
- }
- }
- *p='\0';
-err:
- return(buf);
- }
-
-/* Must 'Free' the returned data */
-char *BN_bn2dec(BIGNUM *a)
- {
- int i=0,num;
- char *buf=NULL;
- char *p;
- BIGNUM *t=NULL;
- BN_ULONG *bn_data=NULL,*lp;
-
- i=BN_num_bits(a)*3;
- num=(i/10+i/1000+3)+1;
- bn_data=(BN_ULONG *)Malloc((num/BN_DEC_NUM+1)*sizeof(BN_ULONG));
- buf=(char *)Malloc(num+3);
- if ((buf == NULL) || (bn_data == NULL))
- {
- BNerr(BN_F_BN_BN2DEC,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- if ((t=BN_dup(a)) == NULL) goto err;
-
- p=buf;
- lp=bn_data;
- if (t->neg) *(p++)='-';
- if (t->top == 0)
- {
- *(p++)='0';
- *(p++)='\0';
- }
- else
- {
- i=0;
- while (!BN_is_zero(t))
- {
- *lp=BN_div_word(t,BN_DEC_CONV);
- lp++;
- }
- lp--;
- /* We now have a series of blocks, BN_DEC_NUM chars
- * in length, where the last one needs trucation.
- * The blocks need to be reversed in order. */
- sprintf(p,BN_DEC_FMT1,*lp);
- while (*p) p++;
- while (lp != bn_data)
- {
- lp--;
- sprintf(p,BN_DEC_FMT2,*lp);
- while (*p) p++;
- }
- }
-err:
- if (bn_data != NULL) Free(bn_data);
- if (t != NULL) BN_free(t);
- return(buf);
- }
-
-int BN_hex2bn(BIGNUM **bn, char *a)
- {
- BIGNUM *ret=NULL;
- BN_ULONG l=0;
- int neg=0,h,m,i,j,k,c;
- int num;
-
- if ((a == NULL) || (*a == '\0')) return(0);
-
- if (*a == '-') { neg=1; a++; }
-
- for (i=0; isxdigit((unsigned char) a[i]); i++)
- ;
-
- num=i+neg;
- if (bn == NULL) return(num);
-
- /* a is the start of the hex digets, and it is 'i' long */
- if (*bn == NULL)
- {
- if ((ret=BN_new()) == NULL) return(0);
- }
- else
- {
- ret= *bn;
- BN_zero(ret);
- }
-
- /* i is the number of hex digests; */
- if (bn_expand(ret,i*4) == NULL) goto err;
-
- j=i; /* least significate 'hex' */
- m=0;
- h=0;
- while (j > 0)
- {
- m=((BN_BYTES*2) <= j)?(BN_BYTES*2):j;
- l=0;
- for (;;)
- {
- c=a[j-m];
- if ((c >= '0') && (c <= '9')) k=c-'0';
- else if ((c >= 'a') && (c <= 'f')) k=c-'a'+10;
- else if ((c >= 'A') && (c <= 'F')) k=c-'A'+10;
- else k=0; /* paranoia */
- l=(l<<4)|k;
-
- if (--m <= 0)
- {
- ret->d[h++]=l;
- break;
- }
- }
- j-=(BN_BYTES*2);
- }
- ret->top=h;
- bn_fix_top(ret);
- ret->neg=neg;
-
- *bn=ret;
- return(num);
-err:
- if (*bn == NULL) BN_free(ret);
- return(0);
- }
-
-int BN_dec2bn(BIGNUM **bn, char *a)
- {
- BIGNUM *ret=NULL;
- BN_ULONG l=0;
- int neg=0,i,j;
- int num;
-
- if ((a == NULL) || (*a == '\0')) return(0);
- if (*a == '-') { neg=1; a++; }
-
- for (i=0; isdigit((unsigned char) a[i]); i++)
- ;
-
- num=i+neg;
- if (bn == NULL) return(num);
-
- /* a is the start of the digets, and it is 'i' long.
- * We chop it into BN_DEC_NUM digets at a time */
- if (*bn == NULL)
- {
- if ((ret=BN_new()) == NULL) return(0);
- }
- else
- {
- ret= *bn;
- BN_zero(ret);
- }
-
- /* i is the number of digests, a bit of an over expand; */
- if (bn_expand(ret,i*4) == NULL) goto err;
-
- j=BN_DEC_NUM-(i%BN_DEC_NUM);
- if (j == BN_DEC_NUM) j=0;
- l=0;
- while (*a)
- {
- l*=10;
- l+= *a-'0';
- a++;
- if (++j == BN_DEC_NUM)
- {
- BN_mul_word(ret,BN_DEC_CONV);
- BN_add_word(ret,l);
- l=0;
- j=0;
- }
- }
- ret->neg=neg;
-
- bn_fix_top(ret);
- *bn=ret;
- return(num);
-err:
- if (*bn == NULL) BN_free(ret);
- return(0);
- }
-
-#ifndef NO_BIO
-
-#ifndef NO_FP_API
-int BN_print_fp(FILE *fp, BIGNUM *a)
- {
- BIO *b;
- int ret;
-
- if ((b=BIO_new(BIO_s_file())) == NULL)
- return(0);
- BIO_set_fp(b,fp,BIO_NOCLOSE);
- ret=BN_print(b,a);
- BIO_free(b);
- return(ret);
- }
+#include <openssl/bio.h>
+#include "bn_local.h"
+
+static const char Hex[] = "0123456789ABCDEF";
+
+#ifndef OPENSSL_NO_STDIO
+int BN_print_fp(FILE *fp, const BIGNUM *a)
+{
+ BIO *b;
+ int ret;
+
+ if ((b = BIO_new(BIO_s_file())) == NULL)
+ return 0;
+ BIO_set_fp(b, fp, BIO_NOCLOSE);
+ ret = BN_print(b, a);
+ BIO_free(b);
+ return ret;
+}
#endif
int BN_print(BIO *bp, const BIGNUM *a)
- {
- int i,j,v,z=0;
- int ret=0;
-
- if ((a->neg) && (BIO_write(bp,"-",1) != 1)) goto end;
- if ((a->top == 0) && (BIO_write(bp,"0",1) != 1)) goto end;
- for (i=a->top-1; i >=0; i--)
- {
- for (j=BN_BITS2-4; j >= 0; j-=4)
- {
- /* strip leading zeros */
- v=((int)(a->d[i]>>(long)j))&0x0f;
- if (z || (v != 0))
- {
- if (BIO_write(bp,&(Hex[v]),1) != 1)
- goto end;
- z=1;
- }
- }
- }
- ret=1;
-end:
- return(ret);
- }
-
+{
+ int i, j, v, z = 0;
+ int ret = 0;
+
+ if ((a->neg) && BIO_write(bp, "-", 1) != 1)
+ goto end;
+ if (BN_is_zero(a) && BIO_write(bp, "0", 1) != 1)
+ goto end;
+ for (i = a->top - 1; i >= 0; i--) {
+ for (j = BN_BITS2 - 4; j >= 0; j -= 4) {
+ /* strip leading zeros */
+ v = (int)((a->d[i] >> j) & 0x0f);
+ if (z || v != 0) {
+ if (BIO_write(bp, &Hex[v], 1) != 1)
+ goto end;
+ z = 1;
+ }
+ }
+ }
+ ret = 1;
+ end:
+ return ret;
+}
+
+char *BN_options(void)
+{
+ static int init = 0;
+ static char data[16];
+
+ if (!init) {
+ init++;
+#ifdef BN_LLONG
+ BIO_snprintf(data, sizeof(data), "bn(%zu,%zu)",
+ sizeof(BN_ULLONG) * 8, sizeof(BN_ULONG) * 8);
+#else
+ BIO_snprintf(data, sizeof(data), "bn(%zu,%zu)",
+ sizeof(BN_ULONG) * 8, sizeof(BN_ULONG) * 8);
#endif
+ }
+ return data;
+}
projects / openssl.git / blobdiff