231 lines
7.8 KiB
C
231 lines
7.8 KiB
C
/* crypto/x509/x509_obj.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <stdio.h>
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#include "cryptlib.h"
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#include <openssl/lhash.h>
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#include <openssl/objects.h>
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#include <openssl/x509.h>
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#include <openssl/buffer.h>
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/*
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* Limit to ensure we don't overflow: much greater than
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* anything enountered in practice.
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*/
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#define NAME_ONELINE_MAX (1024 * 1024)
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char *X509_NAME_oneline(X509_NAME *a, char *buf, int len)
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{
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X509_NAME_ENTRY *ne;
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int i;
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int n, lold, l, l1, l2, num, j, type;
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const char *s;
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char *p;
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unsigned char *q;
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BUF_MEM *b = NULL;
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static const char hex[17] = "0123456789ABCDEF";
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int gs_doit[4];
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char tmp_buf[80];
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#ifdef CHARSET_EBCDIC
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char ebcdic_buf[1024];
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#endif
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if (buf == NULL) {
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if ((b = BUF_MEM_new()) == NULL)
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goto err;
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if (!BUF_MEM_grow(b, 200))
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goto err;
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b->data[0] = '\0';
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len = 200;
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} else if (len == 0) {
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return NULL;
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}
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if (a == NULL) {
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if (b) {
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buf = b->data;
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OPENSSL_free(b);
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}
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strncpy(buf, "NO X509_NAME", len);
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buf[len - 1] = '\0';
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return buf;
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}
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len--; /* space for '\0' */
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l = 0;
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for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) {
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ne = sk_X509_NAME_ENTRY_value(a->entries, i);
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n = OBJ_obj2nid(ne->object);
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if ((n == NID_undef) || ((s = OBJ_nid2sn(n)) == NULL)) {
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i2t_ASN1_OBJECT(tmp_buf, sizeof(tmp_buf), ne->object);
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s = tmp_buf;
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}
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l1 = strlen(s);
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type = ne->value->type;
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num = ne->value->length;
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if (num > NAME_ONELINE_MAX) {
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X509err(X509_F_X509_NAME_ONELINE, X509_R_NAME_TOO_LONG);
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goto end;
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}
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q = ne->value->data;
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#ifdef CHARSET_EBCDIC
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if (type == V_ASN1_GENERALSTRING ||
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type == V_ASN1_VISIBLESTRING ||
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type == V_ASN1_PRINTABLESTRING ||
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type == V_ASN1_TELETEXSTRING ||
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type == V_ASN1_VISIBLESTRING || type == V_ASN1_IA5STRING) {
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if (num > (int)sizeof(ebcdic_buf))
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num = sizeof(ebcdic_buf);
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ascii2ebcdic(ebcdic_buf, q, num);
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q = ebcdic_buf;
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}
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#endif
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if ((type == V_ASN1_GENERALSTRING) && ((num % 4) == 0)) {
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gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 0;
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for (j = 0; j < num; j++)
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if (q[j] != 0)
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gs_doit[j & 3] = 1;
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if (gs_doit[0] | gs_doit[1] | gs_doit[2])
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gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1;
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else {
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gs_doit[0] = gs_doit[1] = gs_doit[2] = 0;
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gs_doit[3] = 1;
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}
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} else
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gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1;
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for (l2 = j = 0; j < num; j++) {
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if (!gs_doit[j & 3])
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continue;
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l2++;
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#ifndef CHARSET_EBCDIC
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if ((q[j] < ' ') || (q[j] > '~'))
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l2 += 3;
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#else
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if ((os_toascii[q[j]] < os_toascii[' ']) ||
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(os_toascii[q[j]] > os_toascii['~']))
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l2 += 3;
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#endif
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}
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lold = l;
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l += 1 + l1 + 1 + l2;
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if (l > NAME_ONELINE_MAX) {
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X509err(X509_F_X509_NAME_ONELINE, X509_R_NAME_TOO_LONG);
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goto end;
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}
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if (b != NULL) {
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if (!BUF_MEM_grow(b, l + 1))
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goto err;
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p = &(b->data[lold]);
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} else if (l > len) {
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break;
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} else
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p = &(buf[lold]);
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*(p++) = '/';
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memcpy(p, s, (unsigned int)l1);
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p += l1;
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*(p++) = '=';
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#ifndef CHARSET_EBCDIC /* q was assigned above already. */
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q = ne->value->data;
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#endif
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for (j = 0; j < num; j++) {
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if (!gs_doit[j & 3])
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continue;
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#ifndef CHARSET_EBCDIC
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n = q[j];
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if ((n < ' ') || (n > '~')) {
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*(p++) = '\\';
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*(p++) = 'x';
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*(p++) = hex[(n >> 4) & 0x0f];
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*(p++) = hex[n & 0x0f];
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} else
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*(p++) = n;
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#else
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n = os_toascii[q[j]];
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if ((n < os_toascii[' ']) || (n > os_toascii['~'])) {
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*(p++) = '\\';
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*(p++) = 'x';
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*(p++) = hex[(n >> 4) & 0x0f];
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*(p++) = hex[n & 0x0f];
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} else
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*(p++) = q[j];
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#endif
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}
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*p = '\0';
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}
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if (b != NULL) {
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p = b->data;
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OPENSSL_free(b);
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} else
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p = buf;
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if (i == 0)
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*p = '\0';
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return (p);
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err:
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X509err(X509_F_X509_NAME_ONELINE, ERR_R_MALLOC_FAILURE);
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end:
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BUF_MEM_free(b);
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return (NULL);
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}
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