1d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 2d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * All rights reserved. 3d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 4d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * This package is an SSL implementation written 5d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * by Eric Young (eay@cryptsoft.com). 6d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * The implementation was written so as to conform with Netscapes SSL. 7d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 8d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * This library is free for commercial and non-commercial use as long as 9d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * the following conditions are aheared to. The following conditions 10d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * apply to all code found in this distribution, be it the RC4, RSA, 11d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * lhash, DES, etc., code; not just the SSL code. The SSL documentation 12d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * included with this distribution is covered by the same copyright terms 13d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * except that the holder is Tim Hudson (tjh@cryptsoft.com). 14d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 15d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * Copyright remains Eric Young's, and as such any Copyright notices in 16d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * the code are not to be removed. 17d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * If this package is used in a product, Eric Young should be given attribution 18d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * as the author of the parts of the library used. 19d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * This can be in the form of a textual message at program startup or 20d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * in documentation (online or textual) provided with the package. 21d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 22d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * Redistribution and use in source and binary forms, with or without 23d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * modification, are permitted provided that the following conditions 24d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * are met: 25d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 1. Redistributions of source code must retain the copyright 26d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * notice, this list of conditions and the following disclaimer. 27d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 2. Redistributions in binary form must reproduce the above copyright 28d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * notice, this list of conditions and the following disclaimer in the 29d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * documentation and/or other materials provided with the distribution. 30d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 3. All advertising materials mentioning features or use of this software 31d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * must display the following acknowledgement: 32d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * "This product includes cryptographic software written by 33d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * Eric Young (eay@cryptsoft.com)" 34d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * The word 'cryptographic' can be left out if the rouines from the library 35d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * being used are not cryptographic related :-). 36d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 4. If you include any Windows specific code (or a derivative thereof) from 37d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * the apps directory (application code) you must include an acknowledgement: 38d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 39d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 40d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 41d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 43d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 44d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 45d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 46d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 48d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 49d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 50d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * SUCH DAMAGE. 51d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 52d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * The licence and distribution terms for any publically available version or 53d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * derivative of this code cannot be changed. i.e. this code cannot simply be 54d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * copied and put under another distribution licence 55d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * [including the GNU Public Licence.] */ 56d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 57d9e397b599b13d642138480a28c14db7a136bf0Adam Langley#include <openssl/asn1.h> 58d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 59d9e397b599b13d642138480a28c14db7a136bf0Adam Langley#include <string.h> 60d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 61d9e397b599b13d642138480a28c14db7a136bf0Adam Langley#include <openssl/err.h> 62d9e397b599b13d642138480a28c14db7a136bf0Adam Langley#include <openssl/mem.h> 63d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 64d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 65d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int traverse_string(const unsigned char *p, int len, int inform, 66d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int (*rfunc)(unsigned long value, void *in), void *arg); 67d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int in_utf8(unsigned long value, void *arg); 68d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int out_utf8(unsigned long value, void *arg); 69d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int type_str(unsigned long value, void *arg); 70d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int cpy_asc(unsigned long value, void *arg); 71d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int cpy_bmp(unsigned long value, void *arg); 72d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int cpy_univ(unsigned long value, void *arg); 73d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int cpy_utf8(unsigned long value, void *arg); 74d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int is_printable(unsigned long value); 75d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 76d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* These functions take a string in UTF8, ASCII or multibyte form and 77d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * a mask of permissible ASN1 string types. It then works out the minimal 78d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * type (using the order Printable < IA5 < T61 < BMP < Universal < UTF8) 79d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * and creates a string of the correct type with the supplied data. 80d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * Yes this is horrible: it has to be :-( 81d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * The 'ncopy' form checks minimum and maximum size limits too. 82d9e397b599b13d642138480a28c14db7a136bf0Adam Langley */ 83d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 84d9e397b599b13d642138480a28c14db7a136bf0Adam Langleyint ASN1_mbstring_copy(ASN1_STRING **out, const unsigned char *in, int len, 85d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int inform, unsigned long mask) 86d9e397b599b13d642138480a28c14db7a136bf0Adam Langley{ 87d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return ASN1_mbstring_ncopy(out, in, len, inform, mask, 0, 0); 88d9e397b599b13d642138480a28c14db7a136bf0Adam Langley} 89d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 90d9e397b599b13d642138480a28c14db7a136bf0Adam Langleyint ASN1_mbstring_ncopy(ASN1_STRING **out, const unsigned char *in, int len, 91d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int inform, unsigned long mask, 92d9e397b599b13d642138480a28c14db7a136bf0Adam Langley long minsize, long maxsize) 93d9e397b599b13d642138480a28c14db7a136bf0Adam Langley{ 94d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int str_type; 95d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int ret; 96d9e397b599b13d642138480a28c14db7a136bf0Adam Langley char free_out; 97d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int outform, outlen = 0; 98d9e397b599b13d642138480a28c14db7a136bf0Adam Langley ASN1_STRING *dest; 99d9e397b599b13d642138480a28c14db7a136bf0Adam Langley unsigned char *p; 100d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int nchar; 101d9e397b599b13d642138480a28c14db7a136bf0Adam Langley char strbuf[32]; 102d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int (*cpyfunc)(unsigned long,void *) = NULL; 103d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(len == -1) len = strlen((const char *)in); 104d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(!mask) mask = DIRSTRING_TYPE; 105d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 106d9e397b599b13d642138480a28c14db7a136bf0Adam Langley /* First do a string check and work out the number of characters */ 107d9e397b599b13d642138480a28c14db7a136bf0Adam Langley switch(inform) { 108d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 109d9e397b599b13d642138480a28c14db7a136bf0Adam Langley case MBSTRING_BMP: 110d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(len & 1) { 111d9e397b599b13d642138480a28c14db7a136bf0Adam Langley OPENSSL_PUT_ERROR(ASN1, ASN1_mbstring_ncopy, ASN1_R_INVALID_BMPSTRING_LENGTH); 112d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return -1; 113d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 114d9e397b599b13d642138480a28c14db7a136bf0Adam Langley nchar = len >> 1; 115d9e397b599b13d642138480a28c14db7a136bf0Adam Langley break; 116d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 117d9e397b599b13d642138480a28c14db7a136bf0Adam Langley case MBSTRING_UNIV: 118d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(len & 3) { 119d9e397b599b13d642138480a28c14db7a136bf0Adam Langley OPENSSL_PUT_ERROR(ASN1, ASN1_mbstring_ncopy, ASN1_R_INVALID_UNIVERSALSTRING_LENGTH); 120d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return -1; 121d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 122d9e397b599b13d642138480a28c14db7a136bf0Adam Langley nchar = len >> 2; 123d9e397b599b13d642138480a28c14db7a136bf0Adam Langley break; 124d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 125d9e397b599b13d642138480a28c14db7a136bf0Adam Langley case MBSTRING_UTF8: 126d9e397b599b13d642138480a28c14db7a136bf0Adam Langley nchar = 0; 127d9e397b599b13d642138480a28c14db7a136bf0Adam Langley /* This counts the characters and does utf8 syntax checking */ 128d9e397b599b13d642138480a28c14db7a136bf0Adam Langley ret = traverse_string(in, len, MBSTRING_UTF8, in_utf8, &nchar); 129d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(ret < 0) { 130d9e397b599b13d642138480a28c14db7a136bf0Adam Langley OPENSSL_PUT_ERROR(ASN1, ASN1_mbstring_ncopy, ASN1_R_INVALID_UTF8STRING); 131d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return -1; 132d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 133d9e397b599b13d642138480a28c14db7a136bf0Adam Langley break; 134d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 135d9e397b599b13d642138480a28c14db7a136bf0Adam Langley case MBSTRING_ASC: 136d9e397b599b13d642138480a28c14db7a136bf0Adam Langley nchar = len; 137d9e397b599b13d642138480a28c14db7a136bf0Adam Langley break; 138d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 139d9e397b599b13d642138480a28c14db7a136bf0Adam Langley default: 140d9e397b599b13d642138480a28c14db7a136bf0Adam Langley OPENSSL_PUT_ERROR(ASN1, ASN1_mbstring_ncopy, ASN1_R_UNKNOWN_FORMAT); 141d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return -1; 142d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 143d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 144d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if((minsize > 0) && (nchar < minsize)) { 145d9e397b599b13d642138480a28c14db7a136bf0Adam Langley OPENSSL_PUT_ERROR(ASN1, ASN1_mbstring_ncopy, ASN1_R_STRING_TOO_SHORT); 146d9e397b599b13d642138480a28c14db7a136bf0Adam Langley BIO_snprintf(strbuf, sizeof strbuf, "%ld", minsize); 147d9e397b599b13d642138480a28c14db7a136bf0Adam Langley ERR_add_error_data(2, "minsize=", strbuf); 148d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return -1; 149d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 150d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 151d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if((maxsize > 0) && (nchar > maxsize)) { 152d9e397b599b13d642138480a28c14db7a136bf0Adam Langley OPENSSL_PUT_ERROR(ASN1, ASN1_mbstring_ncopy, ASN1_R_STRING_TOO_LONG); 153d9e397b599b13d642138480a28c14db7a136bf0Adam Langley BIO_snprintf(strbuf, sizeof strbuf, "%ld", maxsize); 154d9e397b599b13d642138480a28c14db7a136bf0Adam Langley ERR_add_error_data(2, "maxsize=", strbuf); 155d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return -1; 156d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 157d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 158d9e397b599b13d642138480a28c14db7a136bf0Adam Langley /* Now work out minimal type (if any) */ 159d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(traverse_string(in, len, inform, type_str, &mask) < 0) { 160d9e397b599b13d642138480a28c14db7a136bf0Adam Langley OPENSSL_PUT_ERROR(ASN1, ASN1_mbstring_ncopy, ASN1_R_ILLEGAL_CHARACTERS); 161d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return -1; 162d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 163d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 164d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 165d9e397b599b13d642138480a28c14db7a136bf0Adam Langley /* Now work out output format and string type */ 166d9e397b599b13d642138480a28c14db7a136bf0Adam Langley outform = MBSTRING_ASC; 167d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(mask & B_ASN1_PRINTABLESTRING) str_type = V_ASN1_PRINTABLESTRING; 168d9e397b599b13d642138480a28c14db7a136bf0Adam Langley else if(mask & B_ASN1_IA5STRING) str_type = V_ASN1_IA5STRING; 169d9e397b599b13d642138480a28c14db7a136bf0Adam Langley else if(mask & B_ASN1_T61STRING) str_type = V_ASN1_T61STRING; 170d9e397b599b13d642138480a28c14db7a136bf0Adam Langley else if(mask & B_ASN1_BMPSTRING) { 171d9e397b599b13d642138480a28c14db7a136bf0Adam Langley str_type = V_ASN1_BMPSTRING; 172d9e397b599b13d642138480a28c14db7a136bf0Adam Langley outform = MBSTRING_BMP; 173d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } else if(mask & B_ASN1_UNIVERSALSTRING) { 174d9e397b599b13d642138480a28c14db7a136bf0Adam Langley str_type = V_ASN1_UNIVERSALSTRING; 175d9e397b599b13d642138480a28c14db7a136bf0Adam Langley outform = MBSTRING_UNIV; 176d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } else { 177d9e397b599b13d642138480a28c14db7a136bf0Adam Langley str_type = V_ASN1_UTF8STRING; 178d9e397b599b13d642138480a28c14db7a136bf0Adam Langley outform = MBSTRING_UTF8; 179d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 180d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(!out) return str_type; 181d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(*out) { 182d9e397b599b13d642138480a28c14db7a136bf0Adam Langley free_out = 0; 183d9e397b599b13d642138480a28c14db7a136bf0Adam Langley dest = *out; 184d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(dest->data) { 185d9e397b599b13d642138480a28c14db7a136bf0Adam Langley dest->length = 0; 186d9e397b599b13d642138480a28c14db7a136bf0Adam Langley OPENSSL_free(dest->data); 187d9e397b599b13d642138480a28c14db7a136bf0Adam Langley dest->data = NULL; 188d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 189d9e397b599b13d642138480a28c14db7a136bf0Adam Langley dest->type = str_type; 190d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } else { 191d9e397b599b13d642138480a28c14db7a136bf0Adam Langley free_out = 1; 192d9e397b599b13d642138480a28c14db7a136bf0Adam Langley dest = ASN1_STRING_type_new(str_type); 193d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(!dest) { 194d9e397b599b13d642138480a28c14db7a136bf0Adam Langley OPENSSL_PUT_ERROR(ASN1, ASN1_mbstring_ncopy, ERR_R_MALLOC_FAILURE); 195d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return -1; 196d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 197d9e397b599b13d642138480a28c14db7a136bf0Adam Langley *out = dest; 198d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 199d9e397b599b13d642138480a28c14db7a136bf0Adam Langley /* If both the same type just copy across */ 200d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(inform == outform) { 201d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(!ASN1_STRING_set(dest, in, len)) { 202d9e397b599b13d642138480a28c14db7a136bf0Adam Langley OPENSSL_PUT_ERROR(ASN1, ASN1_mbstring_ncopy, ERR_R_MALLOC_FAILURE); 203d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return -1; 204d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 205d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return str_type; 206d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 207d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 208d9e397b599b13d642138480a28c14db7a136bf0Adam Langley /* Work out how much space the destination will need */ 209d9e397b599b13d642138480a28c14db7a136bf0Adam Langley switch(outform) { 210d9e397b599b13d642138480a28c14db7a136bf0Adam Langley case MBSTRING_ASC: 211d9e397b599b13d642138480a28c14db7a136bf0Adam Langley outlen = nchar; 212d9e397b599b13d642138480a28c14db7a136bf0Adam Langley cpyfunc = cpy_asc; 213d9e397b599b13d642138480a28c14db7a136bf0Adam Langley break; 214d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 215d9e397b599b13d642138480a28c14db7a136bf0Adam Langley case MBSTRING_BMP: 216d9e397b599b13d642138480a28c14db7a136bf0Adam Langley outlen = nchar << 1; 217d9e397b599b13d642138480a28c14db7a136bf0Adam Langley cpyfunc = cpy_bmp; 218d9e397b599b13d642138480a28c14db7a136bf0Adam Langley break; 219d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 220d9e397b599b13d642138480a28c14db7a136bf0Adam Langley case MBSTRING_UNIV: 221d9e397b599b13d642138480a28c14db7a136bf0Adam Langley outlen = nchar << 2; 222d9e397b599b13d642138480a28c14db7a136bf0Adam Langley cpyfunc = cpy_univ; 223d9e397b599b13d642138480a28c14db7a136bf0Adam Langley break; 224d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 225d9e397b599b13d642138480a28c14db7a136bf0Adam Langley case MBSTRING_UTF8: 226d9e397b599b13d642138480a28c14db7a136bf0Adam Langley outlen = 0; 227d9e397b599b13d642138480a28c14db7a136bf0Adam Langley traverse_string(in, len, inform, out_utf8, &outlen); 228d9e397b599b13d642138480a28c14db7a136bf0Adam Langley cpyfunc = cpy_utf8; 229d9e397b599b13d642138480a28c14db7a136bf0Adam Langley break; 230d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 231d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(!(p = OPENSSL_malloc(outlen + 1))) { 232d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(free_out) ASN1_STRING_free(dest); 233d9e397b599b13d642138480a28c14db7a136bf0Adam Langley OPENSSL_PUT_ERROR(ASN1, ASN1_mbstring_ncopy, ERR_R_MALLOC_FAILURE); 234d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return -1; 235d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 236d9e397b599b13d642138480a28c14db7a136bf0Adam Langley dest->length = outlen; 237d9e397b599b13d642138480a28c14db7a136bf0Adam Langley dest->data = p; 238d9e397b599b13d642138480a28c14db7a136bf0Adam Langley p[outlen] = 0; 239d9e397b599b13d642138480a28c14db7a136bf0Adam Langley traverse_string(in, len, inform, cpyfunc, &p); 240d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return str_type; 241d9e397b599b13d642138480a28c14db7a136bf0Adam Langley} 242d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 243d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* This function traverses a string and passes the value of each character 244d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * to an optional function along with a void * argument. 245d9e397b599b13d642138480a28c14db7a136bf0Adam Langley */ 246d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 247d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int traverse_string(const unsigned char *p, int len, int inform, 248d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int (*rfunc)(unsigned long value, void *in), void *arg) 249d9e397b599b13d642138480a28c14db7a136bf0Adam Langley{ 250d9e397b599b13d642138480a28c14db7a136bf0Adam Langley unsigned long value; 251d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int ret; 252d9e397b599b13d642138480a28c14db7a136bf0Adam Langley while(len) { 253d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(inform == MBSTRING_ASC) { 254d9e397b599b13d642138480a28c14db7a136bf0Adam Langley value = *p++; 255d9e397b599b13d642138480a28c14db7a136bf0Adam Langley len--; 256d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } else if(inform == MBSTRING_BMP) { 257d9e397b599b13d642138480a28c14db7a136bf0Adam Langley value = *p++ << 8; 258d9e397b599b13d642138480a28c14db7a136bf0Adam Langley value |= *p++; 259d9e397b599b13d642138480a28c14db7a136bf0Adam Langley len -= 2; 260d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } else if(inform == MBSTRING_UNIV) { 261d9e397b599b13d642138480a28c14db7a136bf0Adam Langley value = ((unsigned long)*p++) << 24; 262d9e397b599b13d642138480a28c14db7a136bf0Adam Langley value |= ((unsigned long)*p++) << 16; 263d9e397b599b13d642138480a28c14db7a136bf0Adam Langley value |= *p++ << 8; 264d9e397b599b13d642138480a28c14db7a136bf0Adam Langley value |= *p++; 265d9e397b599b13d642138480a28c14db7a136bf0Adam Langley len -= 4; 266d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } else { 267d9e397b599b13d642138480a28c14db7a136bf0Adam Langley ret = UTF8_getc(p, len, &value); 268d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(ret < 0) return -1; 269d9e397b599b13d642138480a28c14db7a136bf0Adam Langley len -= ret; 270d9e397b599b13d642138480a28c14db7a136bf0Adam Langley p += ret; 271d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 272d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(rfunc) { 273d9e397b599b13d642138480a28c14db7a136bf0Adam Langley ret = rfunc(value, arg); 274d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(ret <= 0) return ret; 275d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 276d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 277d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return 1; 278d9e397b599b13d642138480a28c14db7a136bf0Adam Langley} 279d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 280d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* Various utility functions for traverse_string */ 281d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 282d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* Just count number of characters */ 283d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 284d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int in_utf8(unsigned long value, void *arg) 285d9e397b599b13d642138480a28c14db7a136bf0Adam Langley{ 286d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int *nchar; 287d9e397b599b13d642138480a28c14db7a136bf0Adam Langley nchar = arg; 288d9e397b599b13d642138480a28c14db7a136bf0Adam Langley (*nchar)++; 289d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return 1; 290d9e397b599b13d642138480a28c14db7a136bf0Adam Langley} 291d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 292d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* Determine size of output as a UTF8 String */ 293d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 294d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int out_utf8(unsigned long value, void *arg) 295d9e397b599b13d642138480a28c14db7a136bf0Adam Langley{ 296d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int *outlen; 297d9e397b599b13d642138480a28c14db7a136bf0Adam Langley outlen = arg; 298d9e397b599b13d642138480a28c14db7a136bf0Adam Langley *outlen += UTF8_putc(NULL, -1, value); 299d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return 1; 300d9e397b599b13d642138480a28c14db7a136bf0Adam Langley} 301d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 302d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* Determine the "type" of a string: check each character against a 303d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * supplied "mask". 304d9e397b599b13d642138480a28c14db7a136bf0Adam Langley */ 305d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 306d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int type_str(unsigned long value, void *arg) 307d9e397b599b13d642138480a28c14db7a136bf0Adam Langley{ 308d9e397b599b13d642138480a28c14db7a136bf0Adam Langley unsigned long types; 309d9e397b599b13d642138480a28c14db7a136bf0Adam Langley types = *((unsigned long *)arg); 310d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if((types & B_ASN1_PRINTABLESTRING) && !is_printable(value)) 311d9e397b599b13d642138480a28c14db7a136bf0Adam Langley types &= ~B_ASN1_PRINTABLESTRING; 312d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if((types & B_ASN1_IA5STRING) && (value > 127)) 313d9e397b599b13d642138480a28c14db7a136bf0Adam Langley types &= ~B_ASN1_IA5STRING; 314d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if((types & B_ASN1_T61STRING) && (value > 0xff)) 315d9e397b599b13d642138480a28c14db7a136bf0Adam Langley types &= ~B_ASN1_T61STRING; 316d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if((types & B_ASN1_BMPSTRING) && (value > 0xffff)) 317d9e397b599b13d642138480a28c14db7a136bf0Adam Langley types &= ~B_ASN1_BMPSTRING; 318d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(!types) return -1; 319d9e397b599b13d642138480a28c14db7a136bf0Adam Langley *((unsigned long *)arg) = types; 320d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return 1; 321d9e397b599b13d642138480a28c14db7a136bf0Adam Langley} 322d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 323d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* Copy one byte per character ASCII like strings */ 324d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 325d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int cpy_asc(unsigned long value, void *arg) 326d9e397b599b13d642138480a28c14db7a136bf0Adam Langley{ 327d9e397b599b13d642138480a28c14db7a136bf0Adam Langley unsigned char **p, *q; 328d9e397b599b13d642138480a28c14db7a136bf0Adam Langley p = arg; 329d9e397b599b13d642138480a28c14db7a136bf0Adam Langley q = *p; 330d9e397b599b13d642138480a28c14db7a136bf0Adam Langley *q = (unsigned char) value; 331d9e397b599b13d642138480a28c14db7a136bf0Adam Langley (*p)++; 332d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return 1; 333d9e397b599b13d642138480a28c14db7a136bf0Adam Langley} 334d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 335d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* Copy two byte per character BMPStrings */ 336d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 337d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int cpy_bmp(unsigned long value, void *arg) 338d9e397b599b13d642138480a28c14db7a136bf0Adam Langley{ 339d9e397b599b13d642138480a28c14db7a136bf0Adam Langley unsigned char **p, *q; 340d9e397b599b13d642138480a28c14db7a136bf0Adam Langley p = arg; 341d9e397b599b13d642138480a28c14db7a136bf0Adam Langley q = *p; 342d9e397b599b13d642138480a28c14db7a136bf0Adam Langley *q++ = (unsigned char) ((value >> 8) & 0xff); 343d9e397b599b13d642138480a28c14db7a136bf0Adam Langley *q = (unsigned char) (value & 0xff); 344d9e397b599b13d642138480a28c14db7a136bf0Adam Langley *p += 2; 345d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return 1; 346d9e397b599b13d642138480a28c14db7a136bf0Adam Langley} 347d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 348d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* Copy four byte per character UniversalStrings */ 349d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 350d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int cpy_univ(unsigned long value, void *arg) 351d9e397b599b13d642138480a28c14db7a136bf0Adam Langley{ 352d9e397b599b13d642138480a28c14db7a136bf0Adam Langley unsigned char **p, *q; 353d9e397b599b13d642138480a28c14db7a136bf0Adam Langley p = arg; 354d9e397b599b13d642138480a28c14db7a136bf0Adam Langley q = *p; 355d9e397b599b13d642138480a28c14db7a136bf0Adam Langley *q++ = (unsigned char) ((value >> 24) & 0xff); 356d9e397b599b13d642138480a28c14db7a136bf0Adam Langley *q++ = (unsigned char) ((value >> 16) & 0xff); 357d9e397b599b13d642138480a28c14db7a136bf0Adam Langley *q++ = (unsigned char) ((value >> 8) & 0xff); 358d9e397b599b13d642138480a28c14db7a136bf0Adam Langley *q = (unsigned char) (value & 0xff); 359d9e397b599b13d642138480a28c14db7a136bf0Adam Langley *p += 4; 360d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return 1; 361d9e397b599b13d642138480a28c14db7a136bf0Adam Langley} 362d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 363d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* Copy to a UTF8String */ 364d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 365d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int cpy_utf8(unsigned long value, void *arg) 366d9e397b599b13d642138480a28c14db7a136bf0Adam Langley{ 367d9e397b599b13d642138480a28c14db7a136bf0Adam Langley unsigned char **p; 368d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int ret; 369d9e397b599b13d642138480a28c14db7a136bf0Adam Langley p = arg; 370d9e397b599b13d642138480a28c14db7a136bf0Adam Langley /* We already know there is enough room so pass 0xff as the length */ 371d9e397b599b13d642138480a28c14db7a136bf0Adam Langley ret = UTF8_putc(*p, 0xff, value); 372d9e397b599b13d642138480a28c14db7a136bf0Adam Langley *p += ret; 373d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return 1; 374d9e397b599b13d642138480a28c14db7a136bf0Adam Langley} 375d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 376d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* Return 1 if the character is permitted in a PrintableString */ 377d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int is_printable(unsigned long value) 378d9e397b599b13d642138480a28c14db7a136bf0Adam Langley{ 379d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int ch; 380d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if(value > 0x7f) return 0; 381d9e397b599b13d642138480a28c14db7a136bf0Adam Langley ch = (int) value; 382d9e397b599b13d642138480a28c14db7a136bf0Adam Langley /* Note: we can't use 'isalnum' because certain accented 383d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * characters may count as alphanumeric in some environments. 384d9e397b599b13d642138480a28c14db7a136bf0Adam Langley */ 385d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if((ch >= 'a') && (ch <= 'z')) return 1; 386d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if((ch >= 'A') && (ch <= 'Z')) return 1; 387d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if((ch >= '0') && (ch <= '9')) return 1; 388d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if ((ch == ' ') || strchr("'()+,-./:=?", ch)) return 1; 389d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return 0; 390d9e397b599b13d642138480a28c14db7a136bf0Adam Langley} 391