-/* 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"
+#include <openssl/bio.h>
+#include "bn_local.h"
static const char Hex[] = "0123456789ABCDEF";
-/* Must 'OPENSSL_free' the returned data */
-char *BN_bn2hex(const BIGNUM *a)
-{
- int i, j, v, z = 0;
- char *buf;
- char *p;
-
- buf = OPENSSL_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 (BN_is_zero(a))
- *(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 'OPENSSL_free' the returned data */
-char *BN_bn2dec(const BIGNUM *a)
-{
- int i = 0, num, ok = 0;
- char *buf = NULL;
- char *p;
- BIGNUM *t = NULL;
- BN_ULONG *bn_data = NULL, *lp;
-
- /*-
- * get an upper bound for the length of the decimal integer
- * num <= (BN_num_bits(a) + 1) * log(2)
- * <= 3 * BN_num_bits(a) * 0.1001 + log(2) + 1 (rounding error)
- * <= BN_num_bits(a)/10 + BN_num_bits/1000 + 1 + 1
- */
- i = BN_num_bits(a) * 3;
- num = (i / 10 + i / 1000 + 1) + 1;
- bn_data = OPENSSL_malloc((num / BN_DEC_NUM + 1) * sizeof(BN_ULONG));
- buf = OPENSSL_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;
-
-#define BUF_REMAIN (num+3 - (size_t)(p - buf))
- p = buf;
- lp = bn_data;
- if (BN_is_zero(t)) {
- *(p++) = '0';
- *(p++) = '\0';
- } else {
- if (BN_is_negative(t))
- *p++ = '-';
-
- 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 truncation. The blocks need to be reversed in
- * order.
- */
- BIO_snprintf(p, BUF_REMAIN, BN_DEC_FMT1, *lp);
- while (*p)
- p++;
- while (lp != bn_data) {
- lp--;
- BIO_snprintf(p, BUF_REMAIN, BN_DEC_FMT2, *lp);
- while (*p)
- p++;
- }
- }
- ok = 1;
- err:
- if (bn_data != NULL)
- OPENSSL_free(bn_data);
- BN_free(t);
- if (!ok && buf) {
- OPENSSL_free(buf);
- buf = NULL;
- }
-
- return (buf);
-}
-
-int BN_hex2bn(BIGNUM **bn, const 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 digits, 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 significant '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_correct_top(ret);
- ret->neg = neg;
-
- *bn = ret;
- bn_check_top(ret);
- return (num);
- err:
- if (*bn == NULL)
- BN_free(ret);
- return (0);
-}
-
-int BN_dec2bn(BIGNUM **bn, const 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 digits, and it is 'i' long. We chop it into
- * BN_DEC_NUM digits 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_correct_top(ret);
- *bn = ret;
- bn_check_top(ret);
- return (num);
- err:
- if (*bn == NULL)
- BN_free(ret);
- return (0);
-}
-
-int BN_asc2bn(BIGNUM **bn, const char *a)
-{
- const char *p = a;
- if (*p == '-')
- p++;
-
- if (p[0] == '0' && (p[1] == 'X' || p[1] == 'x')) {
- if (!BN_hex2bn(bn, p + 2))
- return 0;
- } else {
- if (!BN_dec2bn(bn, p))
- return 0;
- }
- if (*a == '-')
- (*bn)->neg = 1;
- return 1;
-}
-
-# ifndef OPENSSL_NO_STDIO
+#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);
+ return 0;
BIO_set_fp(b, fp, BIO_NOCLOSE);
ret = BN_print(b, a);
BIO_free(b);
- return (ret);
+ return ret;
}
-# endif
+#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))
+ if ((a->neg) && BIO_write(bp, "-", 1) != 1)
goto end;
- if (BN_is_zero(a) && (BIO_write(bp, "0", 1) != 1))
+ 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] >> (long)j)) & 0x0f;
- if (z || (v != 0)) {
- if (BIO_write(bp, &(Hex[v]), 1) != 1)
+ 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);
+ return ret;
}
char *BN_options(void)
if (!init) {
init++;
#ifdef BN_LLONG
- BIO_snprintf(data, sizeof data, "bn(%d,%d)",
- (int)sizeof(BN_ULLONG) * 8, (int)sizeof(BN_ULONG) * 8);
+ BIO_snprintf(data, sizeof(data), "bn(%zu,%zu)",
+ sizeof(BN_ULLONG) * 8, sizeof(BN_ULONG) * 8);
#else
- BIO_snprintf(data, sizeof data, "bn(%d,%d)",
- (int)sizeof(BN_ULONG) * 8, (int)sizeof(BN_ULONG) * 8);
+ BIO_snprintf(data, sizeof(data), "bn(%zu,%zu)",
+ sizeof(BN_ULONG) * 8, sizeof(BN_ULONG) * 8);
#endif
}
- return (data);
+ return data;
}
projects / openssl.git / blobdiff