1 /* apps/verify.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 <stdlib.h> 61 #include <string.h> 62 #include "apps.h" 63 #include <openssl/bio.h> 64 #include <openssl/err.h> 65 #include <openssl/x509.h> 66 #include <openssl/pem.h> 67 68 #undef PROG 69 #define PROG verify_main 70 71 static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx); 72 static int check(X509_STORE *ctx,char *file); 73 static int v_verbose=0; 74 75 int MAIN(int argc, char **argv) 76 { 77 int i,ret=1; 78 char *CApath=NULL,*CAfile=NULL; 79 X509_STORE *cert_ctx=NULL; 80 X509_LOOKUP *lookup=NULL; 81 82 cert_ctx=X509_STORE_new(); 83 if (cert_ctx == NULL) goto end; 84 X509_STORE_set_verify_cb_func(cert_ctx,cb); 85 86 ERR_load_crypto_strings(); 87 88 apps_startup(); 89 90 if (bio_err == NULL) 91 if ((bio_err=BIO_new(BIO_s_file())) != NULL) 92 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 93 94 argc--; 95 argv++; 96 for (;;) 97 { 98 if (argc >= 1) 99 { 100 if (strcmp(*argv,"-CApath") == 0) 101 { 102 if (argc-- < 1) goto end; 103 CApath= *(++argv); 104 } 105 else if (strcmp(*argv,"-CAfile") == 0) 106 { 107 if (argc-- < 1) goto end; 108 CAfile= *(++argv); 109 } 110 else if (strcmp(*argv,"-help") == 0) 111 goto end; 112 else if (strcmp(*argv,"-verbose") == 0) 113 v_verbose=1; 114 else if (argv[0][0] == '-') 115 goto end; 116 else 117 break; 118 argc--; 119 argv++; 120 } 121 else 122 break; 123 } 124 125 lookup=X509_STORE_add_lookup(cert_ctx,X509_LOOKUP_file()); 126 if (lookup == NULL) abort(); 127 if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) 128 X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT); 129 130 lookup=X509_STORE_add_lookup(cert_ctx,X509_LOOKUP_hash_dir()); 131 if (lookup == NULL) abort(); 132 if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) 133 X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT); 134 135 136 ERR_clear_error(); 137 if (argc < 1) check(cert_ctx,NULL); 138 else 139 for (i=0; i<argc; i++) 140 check(cert_ctx,argv[i]); 141 ret=0; 142 end: 143 if (ret == 1) 144 BIO_printf(bio_err,"usage: verify [-verbose] [-CApath path] [-CAfile file] cert1 cert2 ...\n"); 145 if (cert_ctx != NULL) X509_STORE_free(cert_ctx); 146 EXIT(ret); 147 } 148 149 static int check(X509_STORE *ctx, char *file) 150 { 151 X509 *x=NULL; 152 BIO *in=NULL; 153 int i=0,ret=0; 154 X509_STORE_CTX csc; 155 156 in=BIO_new(BIO_s_file()); 157 if (in == NULL) 158 { 159 ERR_print_errors(bio_err); 160 goto end; 161 } 162 163 if (file == NULL) 164 BIO_set_fp(in,stdin,BIO_NOCLOSE); 165 else 166 { 167 if (BIO_read_filename(in,file) <= 0) 168 { 169 perror(file); 170 goto end; 171 } 172 } 173 174 x=PEM_read_bio_X509(in,NULL,NULL,NULL); 175 if (x == NULL) 176 { 177 fprintf(stdout,"%s: unable to load certificate file\n", 178 (file == NULL)?"stdin":file); 179 ERR_print_errors(bio_err); 180 goto end; 181 } 182 fprintf(stdout,"%s: ",(file == NULL)?"stdin":file); 183 184 X509_STORE_CTX_init(&csc,ctx,x,NULL); 185 i=X509_verify_cert(&csc); 186 X509_STORE_CTX_cleanup(&csc); 187 188 ret=0; 189 end: 190 if (i) 191 { 192 fprintf(stdout,"OK\n"); 193 ret=1; 194 } 195 else 196 ERR_print_errors(bio_err); 197 if (x != NULL) X509_free(x); 198 if (in != NULL) BIO_free(in); 199 200 return(ret); 201 } 202 203 static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx) 204 { 205 char buf[256]; 206 207 if (!ok) 208 { 209 /* since we are just checking the certificates, it is 210 * ok if they are self signed. */ 211 if (ctx->error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT) 212 ok=1; 213 else 214 { 215 X509_NAME_oneline( 216 X509_get_subject_name(ctx->current_cert),buf,256); 217 printf("%s\n",buf); 218 printf("error %d at %d depth lookup:%s\n",ctx->error, 219 ctx->error_depth, 220 X509_verify_cert_error_string(ctx->error)); 221 if (ctx->error == X509_V_ERR_CERT_HAS_EXPIRED) 222 ok=1; 223 } 224 } 225 if (!v_verbose) 226 ERR_clear_error(); 227 return(ok); 228 } 229 230