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 <openssl/err.h> 60d9e397b599b13d642138480a28c14db7a136bf0Adam Langley#include <openssl/mem.h> 61d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 62d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* Based on a_int.c: equivalent ENUMERATED functions */ 63d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 64d9e397b599b13d642138480a28c14db7a136bf0Adam Langleyint i2a_ASN1_ENUMERATED(BIO *bp, ASN1_ENUMERATED *a) 65d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 66d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int i,n=0; 67d9e397b599b13d642138480a28c14db7a136bf0Adam Langley static const char *h="0123456789ABCDEF"; 68d9e397b599b13d642138480a28c14db7a136bf0Adam Langley char buf[2]; 69d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 70d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (a == NULL) return(0); 71d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 72d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (a->length == 0) 73d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 74d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (BIO_write(bp,"00",2) != 2) goto err; 75d9e397b599b13d642138480a28c14db7a136bf0Adam Langley n=2; 76d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 77d9e397b599b13d642138480a28c14db7a136bf0Adam Langley else 78d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 79d9e397b599b13d642138480a28c14db7a136bf0Adam Langley for (i=0; i<a->length; i++) 80d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 81d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if ((i != 0) && (i%35 == 0)) 82d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 83d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (BIO_write(bp,"\\\n",2) != 2) goto err; 84d9e397b599b13d642138480a28c14db7a136bf0Adam Langley n+=2; 85d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 86d9e397b599b13d642138480a28c14db7a136bf0Adam Langley buf[0]=h[((unsigned char)a->data[i]>>4)&0x0f]; 87d9e397b599b13d642138480a28c14db7a136bf0Adam Langley buf[1]=h[((unsigned char)a->data[i] )&0x0f]; 88d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (BIO_write(bp,buf,2) != 2) goto err; 89d9e397b599b13d642138480a28c14db7a136bf0Adam Langley n+=2; 90d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 91d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 92d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return(n); 93d9e397b599b13d642138480a28c14db7a136bf0Adam Langleyerr: 94d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return(-1); 95d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 96d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 97d9e397b599b13d642138480a28c14db7a136bf0Adam Langleyint a2i_ASN1_ENUMERATED(BIO *bp, ASN1_ENUMERATED *bs, char *buf, int size) 98d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 99d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int ret=0; 100d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int i,j,k,m,n,again,bufsize; 101d9e397b599b13d642138480a28c14db7a136bf0Adam Langley unsigned char *s=NULL,*sp; 102d9e397b599b13d642138480a28c14db7a136bf0Adam Langley unsigned char *bufp; 103d9e397b599b13d642138480a28c14db7a136bf0Adam Langley int num=0,slen=0,first=1; 104d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 105d9e397b599b13d642138480a28c14db7a136bf0Adam Langley bs->type=V_ASN1_ENUMERATED; 106d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 107d9e397b599b13d642138480a28c14db7a136bf0Adam Langley bufsize=BIO_gets(bp,buf,size); 108d9e397b599b13d642138480a28c14db7a136bf0Adam Langley for (;;) 109d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 110d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (bufsize < 1) goto err_sl; 111d9e397b599b13d642138480a28c14db7a136bf0Adam Langley i=bufsize; 112d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (buf[i-1] == '\n') buf[--i]='\0'; 113d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (i == 0) goto err_sl; 114d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (buf[i-1] == '\r') buf[--i]='\0'; 115d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (i == 0) goto err_sl; 116d9e397b599b13d642138480a28c14db7a136bf0Adam Langley again=(buf[i-1] == '\\'); 117d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 118d9e397b599b13d642138480a28c14db7a136bf0Adam Langley for (j=0; j<i; j++) 119d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 120d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (!( ((buf[j] >= '0') && (buf[j] <= '9')) || 121d9e397b599b13d642138480a28c14db7a136bf0Adam Langley ((buf[j] >= 'a') && (buf[j] <= 'f')) || 122d9e397b599b13d642138480a28c14db7a136bf0Adam Langley ((buf[j] >= 'A') && (buf[j] <= 'F')))) 123d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 124d9e397b599b13d642138480a28c14db7a136bf0Adam Langley i=j; 125d9e397b599b13d642138480a28c14db7a136bf0Adam Langley break; 126d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 127d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 128d9e397b599b13d642138480a28c14db7a136bf0Adam Langley buf[i]='\0'; 129d9e397b599b13d642138480a28c14db7a136bf0Adam Langley /* We have now cleared all the crap off the end of the 130d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * line */ 131d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (i < 2) goto err_sl; 132d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 133d9e397b599b13d642138480a28c14db7a136bf0Adam Langley bufp=(unsigned char *)buf; 134d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (first) 135d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 136d9e397b599b13d642138480a28c14db7a136bf0Adam Langley first=0; 137d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if ((bufp[0] == '0') && (buf[1] == '0')) 138d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 139d9e397b599b13d642138480a28c14db7a136bf0Adam Langley bufp+=2; 140d9e397b599b13d642138480a28c14db7a136bf0Adam Langley i-=2; 141d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 142d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 143d9e397b599b13d642138480a28c14db7a136bf0Adam Langley k=0; 144d9e397b599b13d642138480a28c14db7a136bf0Adam Langley i-=again; 145d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (i%2 != 0) 146d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 147b8494591d1b1a143f3b192d845c238bbf3bc629dKenny Root OPENSSL_PUT_ERROR(ASN1, ASN1_R_ODD_NUMBER_OF_CHARS); 148d9e397b599b13d642138480a28c14db7a136bf0Adam Langley goto err; 149d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 150d9e397b599b13d642138480a28c14db7a136bf0Adam Langley i/=2; 151d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (num+i > slen) 152d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 153d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (s == NULL) 154d9e397b599b13d642138480a28c14db7a136bf0Adam Langley sp=(unsigned char *)OPENSSL_malloc( 155d9e397b599b13d642138480a28c14db7a136bf0Adam Langley (unsigned int)num+i*2); 156d9e397b599b13d642138480a28c14db7a136bf0Adam Langley else 157d9e397b599b13d642138480a28c14db7a136bf0Adam Langley sp=(unsigned char *)OPENSSL_realloc(s, 158d9e397b599b13d642138480a28c14db7a136bf0Adam Langley (unsigned int)num+i*2); 159d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (sp == NULL) 160d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 161b8494591d1b1a143f3b192d845c238bbf3bc629dKenny Root OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE); 162d9e397b599b13d642138480a28c14db7a136bf0Adam Langley goto err; 163d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 164d9e397b599b13d642138480a28c14db7a136bf0Adam Langley s=sp; 165d9e397b599b13d642138480a28c14db7a136bf0Adam Langley slen=num+i*2; 166d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 167d9e397b599b13d642138480a28c14db7a136bf0Adam Langley for (j=0; j<i; j++,k+=2) 168d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 169d9e397b599b13d642138480a28c14db7a136bf0Adam Langley for (n=0; n<2; n++) 170d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 171d9e397b599b13d642138480a28c14db7a136bf0Adam Langley m=bufp[k+n]; 172d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if ((m >= '0') && (m <= '9')) 173d9e397b599b13d642138480a28c14db7a136bf0Adam Langley m-='0'; 174d9e397b599b13d642138480a28c14db7a136bf0Adam Langley else if ((m >= 'a') && (m <= 'f')) 175d9e397b599b13d642138480a28c14db7a136bf0Adam Langley m=m-'a'+10; 176d9e397b599b13d642138480a28c14db7a136bf0Adam Langley else if ((m >= 'A') && (m <= 'F')) 177d9e397b599b13d642138480a28c14db7a136bf0Adam Langley m=m-'A'+10; 178d9e397b599b13d642138480a28c14db7a136bf0Adam Langley else 179d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 180b8494591d1b1a143f3b192d845c238bbf3bc629dKenny Root OPENSSL_PUT_ERROR(ASN1, ASN1_R_NON_HEX_CHARACTERS); 181d9e397b599b13d642138480a28c14db7a136bf0Adam Langley goto err; 182d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 183d9e397b599b13d642138480a28c14db7a136bf0Adam Langley s[num+j]<<=4; 184d9e397b599b13d642138480a28c14db7a136bf0Adam Langley s[num+j]|=m; 185d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 186d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 187d9e397b599b13d642138480a28c14db7a136bf0Adam Langley num+=i; 188d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (again) 189d9e397b599b13d642138480a28c14db7a136bf0Adam Langley bufsize=BIO_gets(bp,buf,size); 190d9e397b599b13d642138480a28c14db7a136bf0Adam Langley else 191d9e397b599b13d642138480a28c14db7a136bf0Adam Langley break; 192d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 193d9e397b599b13d642138480a28c14db7a136bf0Adam Langley bs->length=num; 194d9e397b599b13d642138480a28c14db7a136bf0Adam Langley bs->data=s; 195d9e397b599b13d642138480a28c14db7a136bf0Adam Langley ret=1; 196d9e397b599b13d642138480a28c14db7a136bf0Adam Langleyerr: 197d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (0) 198d9e397b599b13d642138480a28c14db7a136bf0Adam Langley { 199d9e397b599b13d642138480a28c14db7a136bf0Adam Langleyerr_sl: 200b8494591d1b1a143f3b192d845c238bbf3bc629dKenny Root OPENSSL_PUT_ERROR(ASN1, ASN1_R_SHORT_LINE); 201d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 202d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (s != NULL) 203d9e397b599b13d642138480a28c14db7a136bf0Adam Langley OPENSSL_free(s); 204d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return(ret); 205d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 206d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 207