diff options
Diffstat (limited to 'thirdparty/openssl/crypto/asn1/a_bitstr.c')
-rw-r--r-- | thirdparty/openssl/crypto/asn1/a_bitstr.c | 263 |
1 files changed, 0 insertions, 263 deletions
diff --git a/thirdparty/openssl/crypto/asn1/a_bitstr.c b/thirdparty/openssl/crypto/asn1/a_bitstr.c deleted file mode 100644 index c429342e03..0000000000 --- a/thirdparty/openssl/crypto/asn1/a_bitstr.c +++ /dev/null @@ -1,263 +0,0 @@ -/* crypto/asn1/a_bitstr.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> - -int ASN1_BIT_STRING_set(ASN1_BIT_STRING *x, unsigned char *d, int len) -{ - return M_ASN1_BIT_STRING_set(x, d, len); -} - -int i2c_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **pp) -{ - int ret, j, bits, len; - unsigned char *p, *d; - - if (a == NULL) - return (0); - - len = a->length; - - if (len > 0) { - if (a->flags & ASN1_STRING_FLAG_BITS_LEFT) { - bits = (int)a->flags & 0x07; - } else { - for (; len > 0; len--) { - if (a->data[len - 1]) - break; - } - j = a->data[len - 1]; - if (j & 0x01) - bits = 0; - else if (j & 0x02) - bits = 1; - else if (j & 0x04) - bits = 2; - else if (j & 0x08) - bits = 3; - else if (j & 0x10) - bits = 4; - else if (j & 0x20) - bits = 5; - else if (j & 0x40) - bits = 6; - else if (j & 0x80) - bits = 7; - else - bits = 0; /* should not happen */ - } - } else - bits = 0; - - ret = 1 + len; - if (pp == NULL) - return (ret); - - p = *pp; - - *(p++) = (unsigned char)bits; - d = a->data; - if (len > 0) { - memcpy(p, d, len); - p += len; - p[-1] &= (0xff << bits); - } - *pp = p; - return (ret); -} - -ASN1_BIT_STRING *c2i_ASN1_BIT_STRING(ASN1_BIT_STRING **a, - const unsigned char **pp, long len) -{ - ASN1_BIT_STRING *ret = NULL; - const unsigned char *p; - unsigned char *s; - int i; - - if (len < 1) { - i = ASN1_R_STRING_TOO_SHORT; - goto err; - } - - if ((a == NULL) || ((*a) == NULL)) { - if ((ret = M_ASN1_BIT_STRING_new()) == NULL) - return (NULL); - } else - ret = (*a); - - p = *pp; - i = *(p++); - if (i > 7) { - i = ASN1_R_INVALID_BIT_STRING_BITS_LEFT; - goto err; - } - /* - * We do this to preserve the settings. If we modify the settings, via - * the _set_bit function, we will recalculate on output - */ - ret->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); /* clear */ - ret->flags |= (ASN1_STRING_FLAG_BITS_LEFT | i); /* set */ - - if (len-- > 1) { /* using one because of the bits left byte */ - s = (unsigned char *)OPENSSL_malloc((int)len); - if (s == NULL) { - i = ERR_R_MALLOC_FAILURE; - goto err; - } - memcpy(s, p, (int)len); - s[len - 1] &= (0xff << i); - p += len; - } else - s = NULL; - - ret->length = (int)len; - if (ret->data != NULL) - OPENSSL_free(ret->data); - ret->data = s; - ret->type = V_ASN1_BIT_STRING; - if (a != NULL) - (*a) = ret; - *pp = p; - return (ret); - err: - ASN1err(ASN1_F_C2I_ASN1_BIT_STRING, i); - if ((ret != NULL) && ((a == NULL) || (*a != ret))) - M_ASN1_BIT_STRING_free(ret); - return (NULL); -} - -/* - * These next 2 functions from Goetz Babin-Ebell <babinebell@trustcenter.de> - */ -int ASN1_BIT_STRING_set_bit(ASN1_BIT_STRING *a, int n, int value) -{ - int w, v, iv; - unsigned char *c; - - w = n / 8; - v = 1 << (7 - (n & 0x07)); - iv = ~v; - if (!value) - v = 0; - - if (a == NULL) - return 0; - - a->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); /* clear, set on write */ - - if ((a->length < (w + 1)) || (a->data == NULL)) { - if (!value) - return (1); /* Don't need to set */ - if (a->data == NULL) - c = (unsigned char *)OPENSSL_malloc(w + 1); - else - c = (unsigned char *)OPENSSL_realloc_clean(a->data, - a->length, w + 1); - if (c == NULL) { - ASN1err(ASN1_F_ASN1_BIT_STRING_SET_BIT, ERR_R_MALLOC_FAILURE); - return 0; - } - if (w + 1 - a->length > 0) - memset(c + a->length, 0, w + 1 - a->length); - a->data = c; - a->length = w + 1; - } - a->data[w] = ((a->data[w]) & iv) | v; - while ((a->length > 0) && (a->data[a->length - 1] == 0)) - a->length--; - return (1); -} - -int ASN1_BIT_STRING_get_bit(ASN1_BIT_STRING *a, int n) -{ - int w, v; - - w = n / 8; - v = 1 << (7 - (n & 0x07)); - if ((a == NULL) || (a->length < (w + 1)) || (a->data == NULL)) - return (0); - return ((a->data[w] & v) != 0); -} - -/* - * Checks if the given bit string contains only bits specified by - * the flags vector. Returns 0 if there is at least one bit set in 'a' - * which is not specified in 'flags', 1 otherwise. - * 'len' is the length of 'flags'. - */ -int ASN1_BIT_STRING_check(ASN1_BIT_STRING *a, - unsigned char *flags, int flags_len) -{ - int i, ok; - /* Check if there is one bit set at all. */ - if (!a || !a->data) - return 1; - - /* - * Check each byte of the internal representation of the bit string. - */ - ok = 1; - for (i = 0; i < a->length && ok; ++i) { - unsigned char mask = i < flags_len ? ~flags[i] : 0xff; - /* We are done if there is an unneeded bit set. */ - ok = (a->data[i] & mask) == 0; - } - return ok; -} |