diff options
Diffstat (limited to 'thirdparty/openssl/crypto/bn/bn_print.c')
-rw-r--r-- | thirdparty/openssl/crypto/bn/bn_print.c | 402 |
1 files changed, 0 insertions, 402 deletions
diff --git a/thirdparty/openssl/crypto/bn/bn_print.c b/thirdparty/openssl/crypto/bn/bn_print.c deleted file mode 100644 index f85a6550a5..0000000000 --- a/thirdparty/openssl/crypto/bn/bn_print.c +++ /dev/null @@ -1,402 +0,0 @@ -/* crypto/bn/bn_print.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 <ctype.h> -#include <limits.h> -#include "cryptlib.h" -#include <openssl/buffer.h> -#include "bn_lcl.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; - - if (BN_is_zero(a)) - return OPENSSL_strdup("0"); - 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++) = '-'; - 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; - int bn_data_num; - - /*- - * 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_num = num / BN_DEC_NUM + 1; - bn_data = OPENSSL_malloc(bn_data_num * 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++ = '-'; - - while (!BN_is_zero(t)) { - if (lp - bn_data >= bn_data_num) - goto err; - *lp = BN_div_word(t, BN_DEC_CONV); - if (*lp == (BN_ULONG)-1) - goto err; - 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); - if (t != NULL) - 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; i <= (INT_MAX/4) && isxdigit((unsigned char)a[i]); i++) - continue; - - if (i > INT_MAX/4) - goto err; - - 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 digits */ - 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); - - *bn = ret; - bn_check_top(ret); - /* Don't set the negative flag if it's zero. */ - if (ret->top != 0) - ret->neg = neg; - 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; i <= (INT_MAX/4) && isdigit((unsigned char)a[i]); i++) - continue; - - if (i > INT_MAX/4) - goto err; - - 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 digits, 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 (--i >= 0) { - 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; - } - } - - bn_correct_top(ret); - *bn = ret; - bn_check_top(ret); - /* Don't set the negative flag if it's zero. */ - if (ret->top != 0) - ret->neg = neg; - 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; - } - /* Don't set the negative flag if it's zero. */ - if (*a == '-' && (*bn)->top != 0) - (*bn)->neg = 1; - return 1; -} - -#ifndef OPENSSL_NO_BIO -# ifndef OPENSSL_NO_FP_API -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 (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) - goto end; - z = 1; - } - } - } - ret = 1; - end: - return (ret); -} -#endif - -char *BN_options(void) -{ - static int init = 0; - static char data[16]; - - if (!init) { - init++; -#ifdef BN_LLONG - BIO_snprintf(data, sizeof data, "bn(%d,%d)", - (int)sizeof(BN_ULLONG) * 8, (int)sizeof(BN_ULONG) * 8); -#else - BIO_snprintf(data, sizeof data, "bn(%d,%d)", - (int)sizeof(BN_ULONG) * 8, (int)sizeof(BN_ULONG) * 8); -#endif - } - return (data); -} |