1c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org/* crypto/asn1/f_string.c */ 2c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * All rights reserved. 4c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 5c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * This package is an SSL implementation written 6c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * by Eric Young (eay@cryptsoft.com). 7c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * The implementation was written so as to conform with Netscapes SSL. 8c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 9c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * This library is free for commercial and non-commercial use as long as 10c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * the following conditions are aheared to. The following conditions 11c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * apply to all code found in this distribution, be it the RC4, RSA, 12c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * included with this distribution is covered by the same copyright terms 14c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 16c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * Copyright remains Eric Young's, and as such any Copyright notices in 17c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * the code are not to be removed. 18c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * If this package is used in a product, Eric Young should be given attribution 19c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * as the author of the parts of the library used. 20c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * This can be in the form of a textual message at program startup or 21c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * in documentation (online or textual) provided with the package. 22c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 23c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * Redistribution and use in source and binary forms, with or without 24c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * modification, are permitted provided that the following conditions 25c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * are met: 26c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 1. Redistributions of source code must retain the copyright 27c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * notice, this list of conditions and the following disclaimer. 28c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 2. Redistributions in binary form must reproduce the above copyright 29c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * notice, this list of conditions and the following disclaimer in the 30c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * documentation and/or other materials provided with the distribution. 31c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 3. All advertising materials mentioning features or use of this software 32c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * must display the following acknowledgement: 33c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * "This product includes cryptographic software written by 34c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * Eric Young (eay@cryptsoft.com)" 35c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * The word 'cryptographic' can be left out if the rouines from the library 36c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * being used are not cryptographic related :-). 37c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 4. If you include any Windows specific code (or a derivative thereof) from 38c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * the apps directory (application code) you must include an acknowledgement: 39c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 41c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * SUCH DAMAGE. 52c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 53c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * The licence and distribution terms for any publically available version or 54c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * derivative of this code cannot be changed. i.e. this code cannot simply be 55c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * copied and put under another distribution licence 56c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * [including the GNU Public Licence.] 57c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org */ 58c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 59c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#include <stdio.h> 60c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#include "cryptlib.h" 61c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#include <openssl/buffer.h> 62c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#include <openssl/asn1.h> 63c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 64c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.orgint i2a_ASN1_STRING(BIO *bp, ASN1_STRING *a, int type) 65c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 66c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org int i,n=0; 67c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org static const char *h="0123456789ABCDEF"; 68c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org char buf[2]; 69c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 70c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (a == NULL) return(0); 71c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 72c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (a->length == 0) 73c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 74c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (BIO_write(bp,"0",1) != 1) goto err; 75c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org n=1; 76c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 77c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org else 78c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 79c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org for (i=0; i<a->length; i++) 80c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 81c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if ((i != 0) && (i%35 == 0)) 82c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 83c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (BIO_write(bp,"\\\n",2) != 2) goto err; 84c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org n+=2; 85c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 86c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org buf[0]=h[((unsigned char)a->data[i]>>4)&0x0f]; 87c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org buf[1]=h[((unsigned char)a->data[i] )&0x0f]; 88c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (BIO_write(bp,buf,2) != 2) goto err; 89c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org n+=2; 90c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 91c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 92c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org return(n); 93c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.orgerr: 94c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org return(-1); 95c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 96c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 97c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.orgint a2i_ASN1_STRING(BIO *bp, ASN1_STRING *bs, char *buf, int size) 98c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 99c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org int ret=0; 100c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org int i,j,k,m,n,again,bufsize; 101c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org unsigned char *s=NULL,*sp; 102c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org unsigned char *bufp; 103c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org int num=0,slen=0,first=1; 104c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 105c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org bufsize=BIO_gets(bp,buf,size); 106c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org for (;;) 107c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 108c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (bufsize < 1) 109c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 110c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (first) 111c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org break; 112c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org else 113c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org goto err_sl; 114c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 115c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org first=0; 116c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 117c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org i=bufsize; 118c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (buf[i-1] == '\n') buf[--i]='\0'; 119c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (i == 0) goto err_sl; 120c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (buf[i-1] == '\r') buf[--i]='\0'; 121c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (i == 0) goto err_sl; 122c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org again=(buf[i-1] == '\\'); 123c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 124c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org for (j=i-1; j>0; j--) 125c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 126c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#ifndef CHARSET_EBCDIC 127c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (!( ((buf[j] >= '0') && (buf[j] <= '9')) || 128c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org ((buf[j] >= 'a') && (buf[j] <= 'f')) || 129c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org ((buf[j] >= 'A') && (buf[j] <= 'F')))) 130c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#else 131c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org /* This #ifdef is not strictly necessary, since 132c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * the characters A...F a...f 0...9 are contiguous 133c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * (yes, even in EBCDIC - but not the whole alphabet). 134c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * Nevertheless, isxdigit() is faster. 135c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org */ 136c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (!isxdigit(buf[j])) 137c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#endif 138c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 139c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org i=j; 140c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org break; 141c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 142c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 143c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org buf[i]='\0'; 144c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org /* We have now cleared all the crap off the end of the 145c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * line */ 146c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (i < 2) goto err_sl; 147c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 148c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org bufp=(unsigned char *)buf; 149c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 150c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org k=0; 151c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org i-=again; 152c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (i%2 != 0) 153c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 154c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org ASN1err(ASN1_F_A2I_ASN1_STRING,ASN1_R_ODD_NUMBER_OF_CHARS); 155c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org goto err; 156c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 157c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org i/=2; 158c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (num+i > slen) 159c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 160c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (s == NULL) 161c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org sp=(unsigned char *)OPENSSL_malloc( 162c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org (unsigned int)num+i*2); 163c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org else 164c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org sp=(unsigned char *)OPENSSL_realloc(s, 165c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org (unsigned int)num+i*2); 166c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (sp == NULL) 167c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 168c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org ASN1err(ASN1_F_A2I_ASN1_STRING,ERR_R_MALLOC_FAILURE); 169c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (s != NULL) OPENSSL_free(s); 170c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org goto err; 171c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 172c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org s=sp; 173c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org slen=num+i*2; 174c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 175c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org for (j=0; j<i; j++,k+=2) 176c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 177c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org for (n=0; n<2; n++) 178c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 179c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org m=bufp[k+n]; 180c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if ((m >= '0') && (m <= '9')) 181c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org m-='0'; 182c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org else if ((m >= 'a') && (m <= 'f')) 183c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org m=m-'a'+10; 184c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org else if ((m >= 'A') && (m <= 'F')) 185c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org m=m-'A'+10; 186c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org else 187c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 188c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org ASN1err(ASN1_F_A2I_ASN1_STRING,ASN1_R_NON_HEX_CHARACTERS); 189c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org goto err; 190c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 191c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org s[num+j]<<=4; 192c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org s[num+j]|=m; 193c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 194c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 195c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org num+=i; 196c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (again) 197c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org bufsize=BIO_gets(bp,buf,size); 198c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org else 199c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org break; 200c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 201c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org bs->length=num; 202c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org bs->data=s; 203c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org ret=1; 204c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.orgerr: 205c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (0) 206c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 207c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.orgerr_sl: 208c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org ASN1err(ASN1_F_A2I_ASN1_STRING,ASN1_R_SHORT_LINE); 209c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 210c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org return(ret); 211c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 212c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 213