| /* crypto/x509/x509_obj.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 <string.h> |
| |
| #include <openssl/buf.h> |
| #include <openssl/err.h> |
| #include <openssl/mem.h> |
| #include <openssl/obj.h> |
| #include <openssl/x509.h> |
| |
| #include "../internal.h" |
| |
| |
| /* |
| * Limit to ensure we don't overflow: much greater than |
| * anything enountered in practice. |
| */ |
| |
| #define NAME_ONELINE_MAX (1024 * 1024) |
| |
| char *X509_NAME_oneline(X509_NAME *a, char *buf, int len) |
| { |
| X509_NAME_ENTRY *ne; |
| size_t i; |
| int n, lold, l, l1, l2, num, j, type; |
| const char *s; |
| char *p; |
| unsigned char *q; |
| BUF_MEM *b = NULL; |
| static const char hex[17] = "0123456789ABCDEF"; |
| int gs_doit[4]; |
| char tmp_buf[80]; |
| |
| if (buf == NULL) { |
| if ((b = BUF_MEM_new()) == NULL) |
| goto err; |
| if (!BUF_MEM_grow(b, 200)) |
| goto err; |
| b->data[0] = '\0'; |
| len = 200; |
| } else if (len <= 0) { |
| return NULL; |
| } |
| if (a == NULL) { |
| if (b) { |
| buf = b->data; |
| OPENSSL_free(b); |
| } |
| BUF_strlcpy(buf, "NO X509_NAME", len); |
| return buf; |
| } |
| |
| len--; /* space for '\0' */ |
| l = 0; |
| for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) { |
| ne = sk_X509_NAME_ENTRY_value(a->entries, i); |
| n = OBJ_obj2nid(ne->object); |
| if ((n == NID_undef) || ((s = OBJ_nid2sn(n)) == NULL)) { |
| i2t_ASN1_OBJECT(tmp_buf, sizeof(tmp_buf), ne->object); |
| s = tmp_buf; |
| } |
| l1 = strlen(s); |
| |
| type = ne->value->type; |
| num = ne->value->length; |
| if (num > NAME_ONELINE_MAX) { |
| OPENSSL_PUT_ERROR(X509, X509_R_NAME_TOO_LONG); |
| goto end; |
| } |
| q = ne->value->data; |
| |
| if ((type == V_ASN1_GENERALSTRING) && ((num % 4) == 0)) { |
| gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 0; |
| for (j = 0; j < num; j++) |
| if (q[j] != 0) |
| gs_doit[j & 3] = 1; |
| |
| if (gs_doit[0] | gs_doit[1] | gs_doit[2]) |
| gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1; |
| else { |
| gs_doit[0] = gs_doit[1] = gs_doit[2] = 0; |
| gs_doit[3] = 1; |
| } |
| } else |
| gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1; |
| |
| for (l2 = j = 0; j < num; j++) { |
| if (!gs_doit[j & 3]) |
| continue; |
| l2++; |
| if ((q[j] < ' ') || (q[j] > '~')) |
| l2 += 3; |
| } |
| |
| lold = l; |
| l += 1 + l1 + 1 + l2; |
| if (l > NAME_ONELINE_MAX) { |
| OPENSSL_PUT_ERROR(X509, X509_R_NAME_TOO_LONG); |
| goto end; |
| } |
| if (b != NULL) { |
| if (!BUF_MEM_grow(b, l + 1)) |
| goto err; |
| p = &(b->data[lold]); |
| } else if (l > len) { |
| break; |
| } else |
| p = &(buf[lold]); |
| *(p++) = '/'; |
| OPENSSL_memcpy(p, s, (unsigned int)l1); |
| p += l1; |
| *(p++) = '='; |
| |
| q = ne->value->data; |
| |
| for (j = 0; j < num; j++) { |
| if (!gs_doit[j & 3]) |
| continue; |
| n = q[j]; |
| if ((n < ' ') || (n > '~')) { |
| *(p++) = '\\'; |
| *(p++) = 'x'; |
| *(p++) = hex[(n >> 4) & 0x0f]; |
| *(p++) = hex[n & 0x0f]; |
| } else |
| *(p++) = n; |
| } |
| *p = '\0'; |
| } |
| if (b != NULL) { |
| p = b->data; |
| OPENSSL_free(b); |
| } else |
| p = buf; |
| if (i == 0) |
| *p = '\0'; |
| return (p); |
| err: |
| OPENSSL_PUT_ERROR(X509, ERR_R_MALLOC_FAILURE); |
| end: |
| BUF_MEM_free(b); |
| return (NULL); |
| } |
