1 /* crypto/asn1/t_pkey.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #include <stdio.h> 60 #include "cryptlib.h" 61 #include <openssl/objects.h> 62 #include <openssl/buffer.h> 63 #include <openssl/bn.h> 64 65 int ASN1_bn_print(BIO *bp, const char *number, const BIGNUM *num, 66 unsigned char *buf, int off) 67 { 68 int n,i; 69 const char *neg; 70 71 if (num == NULL) return(1); 72 neg = (BN_is_negative(num))?"-":""; 73 if(!BIO_indent(bp,off,128)) 74 return 0; 75 if (BN_is_zero(num)) 76 { 77 if (BIO_printf(bp, "%s 0\n", number) <= 0) 78 return 0; 79 return 1; 80 } 81 82 if (BN_num_bytes(num) <= BN_BYTES) 83 { 84 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg, 85 (unsigned long)num->d[0],neg,(unsigned long)num->d[0]) 86 <= 0) return(0); 87 } 88 else 89 { 90 buf[0]=0; 91 if (BIO_printf(bp,"%s%s",number, 92 (neg[0] == '-')?" (Negative)":"") <= 0) 93 return(0); 94 n=BN_bn2bin(num,&buf[1]); 95 96 if (buf[1] & 0x80) 97 n++; 98 else buf++; 99 100 for (i=0; i<n; i++) 101 { 102 if ((i%15) == 0) 103 { 104 if(BIO_puts(bp,"\n") <= 0 105 || !BIO_indent(bp,off+4,128)) 106 return 0; 107 } 108 if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":") 109 <= 0) return(0); 110 } 111 if (BIO_write(bp,"\n",1) <= 0) return(0); 112 } 113 return(1); 114 } 115