1/* v3_prn.c */ 2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3 * project 1999. 4 */ 5/* ==================================================================== 6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 20 * 3. All advertising materials mentioning features or use of this 21 * software must display the following acknowledgment: 22 * "This product includes software developed by the OpenSSL Project 23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24 * 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26 * endorse or promote products derived from this software without 27 * prior written permission. For written permission, please contact 28 * licensing@OpenSSL.org. 29 * 30 * 5. Products derived from this software may not be called "OpenSSL" 31 * nor may "OpenSSL" appear in their names without prior written 32 * permission of the OpenSSL Project. 33 * 34 * 6. Redistributions of any form whatsoever must retain the following 35 * acknowledgment: 36 * "This product includes software developed by the OpenSSL Project 37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38 * 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50 * OF THE POSSIBILITY OF SUCH DAMAGE. 51 * ==================================================================== 52 * 53 * This product includes cryptographic software written by Eric Young 54 * (eay@cryptsoft.com). This product includes software written by Tim 55 * Hudson (tjh@cryptsoft.com). 56 * 57 */ 58/* X509 v3 extension utilities */ 59 60#include <stdio.h> 61#include "cryptlib.h" 62#include <openssl/conf.h> 63#include <openssl/x509v3.h> 64 65/* Extension printing routines */ 66 67static int unknown_ext_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent, int supported); 68 69/* Print out a name+value stack */ 70 71void X509V3_EXT_val_prn(BIO *out, STACK_OF(CONF_VALUE) *val, int indent, int ml) 72{ 73 int i; 74 CONF_VALUE *nval; 75 if(!val) return; 76 if(!ml || !sk_CONF_VALUE_num(val)) { 77 BIO_printf(out, "%*s", indent, ""); 78 if(!sk_CONF_VALUE_num(val)) BIO_puts(out, "<EMPTY>\n"); 79 } 80 for(i = 0; i < sk_CONF_VALUE_num(val); i++) { 81 if(ml) BIO_printf(out, "%*s", indent, ""); 82 else if(i > 0) BIO_printf(out, ", "); 83 nval = sk_CONF_VALUE_value(val, i); 84 if(!nval->name) BIO_puts(out, nval->value); 85 else if(!nval->value) BIO_puts(out, nval->name); 86#ifndef CHARSET_EBCDIC 87 else BIO_printf(out, "%s:%s", nval->name, nval->value); 88#else 89 else { 90 int len; 91 char *tmp; 92 len = strlen(nval->value)+1; 93 tmp = OPENSSL_malloc(len); 94 if (tmp) 95 { 96 ascii2ebcdic(tmp, nval->value, len); 97 BIO_printf(out, "%s:%s", nval->name, tmp); 98 OPENSSL_free(tmp); 99 } 100 } 101#endif 102 if(ml) BIO_puts(out, "\n"); 103 } 104} 105 106/* Main routine: print out a general extension */ 107 108int X509V3_EXT_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent) 109{ 110 void *ext_str = NULL; 111 char *value = NULL; 112 const unsigned char *p; 113 const X509V3_EXT_METHOD *method; 114 STACK_OF(CONF_VALUE) *nval = NULL; 115 int ok = 1; 116 117 if(!(method = X509V3_EXT_get(ext))) 118 return unknown_ext_print(out, ext, flag, indent, 0); 119 p = ext->value->data; 120 if(method->it) ext_str = ASN1_item_d2i(NULL, &p, ext->value->length, ASN1_ITEM_ptr(method->it)); 121 else ext_str = method->d2i(NULL, &p, ext->value->length); 122 123 if(!ext_str) return unknown_ext_print(out, ext, flag, indent, 1); 124 125 if(method->i2s) { 126 if(!(value = method->i2s(method, ext_str))) { 127 ok = 0; 128 goto err; 129 } 130#ifndef CHARSET_EBCDIC 131 BIO_printf(out, "%*s%s", indent, "", value); 132#else 133 { 134 int len; 135 char *tmp; 136 len = strlen(value)+1; 137 tmp = OPENSSL_malloc(len); 138 if (tmp) 139 { 140 ascii2ebcdic(tmp, value, len); 141 BIO_printf(out, "%*s%s", indent, "", tmp); 142 OPENSSL_free(tmp); 143 } 144 } 145#endif 146 } else if(method->i2v) { 147 if(!(nval = method->i2v(method, ext_str, NULL))) { 148 ok = 0; 149 goto err; 150 } 151 X509V3_EXT_val_prn(out, nval, indent, 152 method->ext_flags & X509V3_EXT_MULTILINE); 153 } else if(method->i2r) { 154 if(!method->i2r(method, ext_str, out, indent)) ok = 0; 155 } else ok = 0; 156 157 err: 158 sk_CONF_VALUE_pop_free(nval, X509V3_conf_free); 159 if(value) OPENSSL_free(value); 160 if(method->it) ASN1_item_free(ext_str, ASN1_ITEM_ptr(method->it)); 161 else method->ext_free(ext_str); 162 return ok; 163} 164 165int X509V3_extensions_print(BIO *bp, char *title, STACK_OF(X509_EXTENSION) *exts, unsigned long flag, int indent) 166{ 167 int i, j; 168 169 if(sk_X509_EXTENSION_num(exts) <= 0) return 1; 170 171 if(title) 172 { 173 BIO_printf(bp,"%*s%s:\n",indent, "", title); 174 indent += 4; 175 } 176 177 for (i=0; i<sk_X509_EXTENSION_num(exts); i++) 178 { 179 ASN1_OBJECT *obj; 180 X509_EXTENSION *ex; 181 ex=sk_X509_EXTENSION_value(exts, i); 182 if (indent && BIO_printf(bp,"%*s",indent, "") <= 0) return 0; 183 obj=X509_EXTENSION_get_object(ex); 184 i2a_ASN1_OBJECT(bp,obj); 185 j=X509_EXTENSION_get_critical(ex); 186 if (BIO_printf(bp,": %s\n",j?"critical":"") <= 0) 187 return 0; 188 if(!X509V3_EXT_print(bp, ex, flag, indent + 4)) 189 { 190 BIO_printf(bp, "%*s", indent + 4, ""); 191 M_ASN1_OCTET_STRING_print(bp,ex->value); 192 } 193 if (BIO_write(bp,"\n",1) <= 0) return 0; 194 } 195 return 1; 196} 197 198static int unknown_ext_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent, int supported) 199{ 200 switch(flag & X509V3_EXT_UNKNOWN_MASK) { 201 202 case X509V3_EXT_DEFAULT: 203 return 0; 204 205 case X509V3_EXT_ERROR_UNKNOWN: 206 if(supported) 207 BIO_printf(out, "%*s<Parse Error>", indent, ""); 208 else 209 BIO_printf(out, "%*s<Not Supported>", indent, ""); 210 return 1; 211 212 case X509V3_EXT_PARSE_UNKNOWN: 213 return ASN1_parse_dump(out, 214 ext->value->data, ext->value->length, indent, -1); 215 case X509V3_EXT_DUMP_UNKNOWN: 216 return BIO_dump_indent(out, (char *)ext->value->data, ext->value->length, indent); 217 218 default: 219 return 1; 220 } 221} 222 223 224#ifndef OPENSSL_NO_FP_API 225int X509V3_EXT_print_fp(FILE *fp, X509_EXTENSION *ext, int flag, int indent) 226{ 227 BIO *bio_tmp; 228 int ret; 229 if(!(bio_tmp = BIO_new_fp(fp, BIO_NOCLOSE))) return 0; 230 ret = X509V3_EXT_print(bio_tmp, ext, flag, indent); 231 BIO_free(bio_tmp); 232 return ret; 233} 234#endif 235