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/* X509 v3 extension utilities */ 58 59#include <stdio.h> 60 61#include <openssl/bio.h> 62#include <openssl/conf.h> 63#include <openssl/mem.h> 64#include <openssl/x509v3.h> 65 66 67/* Extension printing routines */ 68 69static int unknown_ext_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent, int supported); 70 71/* Print out a name+value stack */ 72 73void X509V3_EXT_val_prn(BIO *out, STACK_OF(CONF_VALUE) *val, int indent, int ml) 74{ 75 size_t i; 76 CONF_VALUE *nval; 77 if(!val) return; 78 if(!ml || !sk_CONF_VALUE_num(val)) { 79 BIO_printf(out, "%*s", indent, ""); 80 if(!sk_CONF_VALUE_num(val)) BIO_puts(out, "<EMPTY>\n"); 81 } 82 for(i = 0; i < sk_CONF_VALUE_num(val); i++) { 83 if(ml) BIO_printf(out, "%*s", indent, ""); 84 else if(i > 0) BIO_printf(out, ", "); 85 nval = sk_CONF_VALUE_value(val, i); 86 if(!nval->name) BIO_puts(out, nval->value); 87 else if(!nval->value) BIO_puts(out, nval->name); 88 else BIO_printf(out, "%s:%s", nval->name, nval->value); 89 if(ml) BIO_puts(out, "\n"); 90 } 91} 92 93/* Main routine: print out a general extension */ 94 95int X509V3_EXT_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent) 96{ 97 void *ext_str = NULL; 98 char *value = NULL; 99 const unsigned char *p; 100 const X509V3_EXT_METHOD *method; 101 STACK_OF(CONF_VALUE) *nval = NULL; 102 int ok = 1; 103 104 if(!(method = X509V3_EXT_get(ext))) 105 return unknown_ext_print(out, ext, flag, indent, 0); 106 p = ext->value->data; 107 if(method->it) ext_str = ASN1_item_d2i(NULL, &p, ext->value->length, ASN1_ITEM_ptr(method->it)); 108 else ext_str = method->d2i(NULL, &p, ext->value->length); 109 110 if(!ext_str) return unknown_ext_print(out, ext, flag, indent, 1); 111 112 if(method->i2s) { 113 if(!(value = method->i2s(method, ext_str))) { 114 ok = 0; 115 goto err; 116 } 117 BIO_printf(out, "%*s%s", indent, "", value); 118 } else if(method->i2v) { 119 if(!(nval = method->i2v(method, ext_str, NULL))) { 120 ok = 0; 121 goto err; 122 } 123 X509V3_EXT_val_prn(out, nval, indent, 124 method->ext_flags & X509V3_EXT_MULTILINE); 125 } else if(method->i2r) { 126 if(!method->i2r(method, ext_str, out, indent)) ok = 0; 127 } else ok = 0; 128 129 err: 130 sk_CONF_VALUE_pop_free(nval, X509V3_conf_free); 131 if(value) OPENSSL_free(value); 132 if(method->it) ASN1_item_free(ext_str, ASN1_ITEM_ptr(method->it)); 133 else method->ext_free(ext_str); 134 return ok; 135} 136 137int X509V3_extensions_print(BIO *bp, const char *title, STACK_OF(X509_EXTENSION) *exts, unsigned long flag, int indent) 138{ 139 size_t i; 140 int j; 141 142 if(sk_X509_EXTENSION_num(exts) <= 0) return 1; 143 144 if(title) 145 { 146 BIO_printf(bp,"%*s%s:\n",indent, "", title); 147 indent += 4; 148 } 149 150 for (i=0; i<sk_X509_EXTENSION_num(exts); i++) 151 { 152 ASN1_OBJECT *obj; 153 X509_EXTENSION *ex; 154 ex=sk_X509_EXTENSION_value(exts, i); 155 if (indent && BIO_printf(bp,"%*s",indent, "") <= 0) return 0; 156 obj=X509_EXTENSION_get_object(ex); 157 i2a_ASN1_OBJECT(bp,obj); 158 j=X509_EXTENSION_get_critical(ex); 159 if (BIO_printf(bp,": %s\n",j?"critical":"") <= 0) 160 return 0; 161 if(!X509V3_EXT_print(bp, ex, flag, indent + 4)) 162 { 163 BIO_printf(bp, "%*s", indent + 4, ""); 164 M_ASN1_OCTET_STRING_print(bp,ex->value); 165 } 166 if (BIO_write(bp,"\n",1) <= 0) return 0; 167 } 168 return 1; 169} 170 171static int unknown_ext_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent, int supported) 172{ 173 switch(flag & X509V3_EXT_UNKNOWN_MASK) { 174 175 case X509V3_EXT_DEFAULT: 176 return 0; 177 178 case X509V3_EXT_ERROR_UNKNOWN: 179 if(supported) 180 BIO_printf(out, "%*s<Parse Error>", indent, ""); 181 else 182 BIO_printf(out, "%*s<Not Supported>", indent, ""); 183 return 1; 184 185 case X509V3_EXT_PARSE_UNKNOWN: 186 return ASN1_parse_dump(out, 187 ext->value->data, ext->value->length, indent, -1); 188 case X509V3_EXT_DUMP_UNKNOWN: 189 return BIO_hexdump(out, ext->value->data, ext->value->length, indent); 190 191 default: 192 return 1; 193 } 194} 195 196 197#ifndef OPENSSL_NO_FP_API 198int X509V3_EXT_print_fp(FILE *fp, X509_EXTENSION *ext, int flag, int indent) 199{ 200 BIO *bio_tmp; 201 int ret; 202 if(!(bio_tmp = BIO_new_fp(fp, BIO_NOCLOSE))) return 0; 203 ret = X509V3_EXT_print(bio_tmp, ext, flag, indent); 204 BIO_free(bio_tmp); 205 return ret; 206} 207#endif 208