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/* $OpenBSD: crl.c,v 1.10 2017/01/20 08:57:11 deraadt Exp $ */ |
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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* All rights reserved. |
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* |
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* This package is an SSL implementation written |
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* by Eric Young (eay@cryptsoft.com). |
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* The implementation was written so as to conform with Netscapes SSL. |
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* |
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* This library is free for commercial and non-commercial use as long as |
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* the following conditions are aheared to. The following conditions |
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* apply to all code found in this distribution, be it the RC4, RSA, |
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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* included with this distribution is covered by the same copyright terms |
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* except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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* |
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* Copyright remains Eric Young's, and as such any Copyright notices in |
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* the code are not to be removed. |
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* If this package is used in a product, Eric Young should be given attribution |
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* as the author of the parts of the library used. |
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* This can be in the form of a textual message at program startup or |
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* in documentation (online or textual) provided with the package. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. All advertising materials mentioning features or use of this software |
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* must display the following acknowledgement: |
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* "This product includes cryptographic software written by |
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* Eric Young (eay@cryptsoft.com)" |
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* The word 'cryptographic' can be left out if the rouines from the library |
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* being used are not cryptographic related :-). |
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* 4. If you include any Windows specific code (or a derivative thereof) from |
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* the apps directory (application code) you must include an acknowledgement: |
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* The licence and distribution terms for any publically available version or |
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* derivative of this code cannot be changed. i.e. this code cannot simply be |
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* copied and put under another distribution licence |
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* [including the GNU Public Licence.] |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include "apps.h" |
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#include <openssl/bio.h> |
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#include <openssl/err.h> |
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#include <openssl/pem.h> |
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#include <openssl/x509.h> |
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#include <openssl/x509v3.h> |
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static struct { |
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char *cafile; |
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char *capath; |
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int crlnumber; |
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int fingerprint; |
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int hash; |
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int hash_old; |
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char *infile; |
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int informat; |
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int issuer; |
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int lastupdate; |
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char *nameopt; |
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int nextupdate; |
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int noout; |
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char *outfile; |
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int outformat; |
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int text; |
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int verify; |
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} crl_config; |
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static struct option crl_options[] = { |
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{ |
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.name = "CAfile", |
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.argname = "file", |
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.desc = "Verify the CRL using certificates in the given file", |
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.type = OPTION_ARG, |
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.opt.arg = &crl_config.cafile, |
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}, |
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{ |
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.name = "CApath", |
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.argname = "path", |
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.desc = "Verify the CRL using certificates in the given path", |
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.type = OPTION_ARG, |
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.opt.arg = &crl_config.capath, |
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}, |
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{ |
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.name = "crlnumber", |
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.desc = "Print the CRL number", |
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.type = OPTION_FLAG_ORD, |
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.opt.flag = &crl_config.crlnumber, |
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}, |
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{ |
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.name = "fingerprint", |
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.desc = "Print the CRL fingerprint", |
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.type = OPTION_FLAG_ORD, |
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.opt.flag = &crl_config.fingerprint, |
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}, |
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{ |
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.name = "hash", |
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.desc = "Print the hash of the issuer name", |
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.type = OPTION_FLAG_ORD, |
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.opt.flag = &crl_config.hash, |
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}, |
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{ |
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.name = "hash_old", |
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.desc = "Print an old-style (MD5) hash of the issuer name", |
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.type = OPTION_FLAG_ORD, |
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.opt.flag = &crl_config.hash_old, |
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}, |
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{ |
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.name = "in", |
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.argname = "file", |
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.desc = "Input file to read from (stdin if unspecified)", |
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.type = OPTION_ARG, |
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.opt.arg = &crl_config.infile, |
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}, |
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{ |
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.name = "inform", |
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.argname = "format", |
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.desc = "Input format (DER or PEM)", |
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.type = OPTION_ARG_FORMAT, |
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.opt.value = &crl_config.informat, |
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}, |
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{ |
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.name = "issuer", |
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.desc = "Print the issuer name", |
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.type = OPTION_FLAG_ORD, |
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.opt.flag = &crl_config.issuer, |
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}, |
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{ |
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.name = "lastupdate", |
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.desc = "Print the lastUpdate field", |
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.type = OPTION_FLAG_ORD, |
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.opt.flag = &crl_config.lastupdate, |
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}, |
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{ |
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.name = "nameopt", |
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.argname = "options", |
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.desc = "Specify certificate name options", |
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.type = OPTION_ARG, |
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.opt.arg = &crl_config.nameopt, |
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}, |
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{ |
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.name = "nextupdate", |
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.desc = "Print the nextUpdate field", |
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.type = OPTION_FLAG_ORD, |
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.opt.flag = &crl_config.nextupdate, |
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}, |
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{ |
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.name = "noout", |
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.desc = "Do not output the encoded version of the CRL", |
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.type = OPTION_FLAG, |
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.opt.flag = &crl_config.noout, |
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}, |
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{ |
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.name = "out", |
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.argname = "file", |
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.desc = "Output file to write to (stdout if unspecified)", |
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.type = OPTION_ARG, |
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.opt.arg = &crl_config.outfile, |
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}, |
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{ |
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.name = "outform", |
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.argname = "format", |
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.desc = "Output format (DER or PEM)", |
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.type = OPTION_ARG_FORMAT, |
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.opt.value = &crl_config.outformat, |
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}, |
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{ |
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.name = "text", |
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.desc = "Print out the CRL in text form", |
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.type = OPTION_FLAG, |
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.opt.flag = &crl_config.text, |
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}, |
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{ |
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.name = "verify", |
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.desc = "Verify the signature on the CRL", |
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.type = OPTION_FLAG, |
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.opt.flag = &crl_config.verify, |
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}, |
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{NULL}, |
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}; |
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static void |
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crl_usage(void) |
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{ |
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fprintf(stderr, |
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"usage: crl [-CAfile file] [-CApath dir] [-fingerprint] [-hash]\n" |
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" [-in file] [-inform DER | PEM] [-issuer] [-lastupdate]\n" |
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" [-nextupdate] [-noout] [-out file] [-outform DER | PEM]\n" |
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" [-text]\n\n"); |
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options_usage(crl_options); |
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} |
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static X509_CRL *load_crl(char *file, int format); |
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static BIO *bio_out = NULL; |
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int |
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crl_main(int argc, char **argv) |
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{ |
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unsigned long nmflag = 0; |
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X509_CRL *x = NULL; |
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int ret = 1, i; |
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BIO *out = NULL; |
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X509_STORE *store = NULL; |
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X509_STORE_CTX ctx; |
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X509_LOOKUP *lookup = NULL; |
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X509_OBJECT xobj; |
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EVP_PKEY *pkey; |
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const EVP_MD *digest; |
231 |
|
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char *digest_name = NULL; |
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233 |
✓✗ |
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if (single_execution) { |
234 |
✗✓ |
16 |
if (pledge("stdio cpath wpath rpath flock", NULL) == -1) { |
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perror("pledge"); |
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exit(1); |
237 |
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} |
238 |
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} |
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|
240 |
✓✗ |
16 |
if (bio_out == NULL) { |
241 |
✓✗ |
16 |
if ((bio_out = BIO_new(BIO_s_file())) != NULL) { |
242 |
|
16 |
BIO_set_fp(bio_out, stdout, BIO_NOCLOSE); |
243 |
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16 |
} |
244 |
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} |
245 |
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246 |
|
16 |
digest = EVP_sha1(); |
247 |
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|
248 |
|
16 |
memset(&crl_config, 0, sizeof(crl_config)); |
249 |
|
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crl_config.informat = FORMAT_PEM; |
250 |
|
16 |
crl_config.outformat = FORMAT_PEM; |
251 |
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|
252 |
✓✓ |
16 |
if (options_parse(argc, argv, crl_options, &digest_name, NULL) != 0) { |
253 |
|
8 |
crl_usage(); |
254 |
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8 |
goto end; |
255 |
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} |
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|
257 |
✗✓ |
8 |
if (crl_config.cafile != NULL || crl_config.capath != NULL) |
258 |
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crl_config.verify = 1; |
259 |
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|
260 |
✗✓ |
8 |
if (crl_config.nameopt != NULL) { |
261 |
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if (set_name_ex(&nmflag, crl_config.nameopt) != 1) { |
262 |
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fprintf(stderr, |
263 |
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"Invalid -nameopt argument '%s'\n", |
264 |
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crl_config.nameopt); |
265 |
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goto end; |
266 |
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} |
267 |
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} |
268 |
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|
269 |
✗✓ |
8 |
if (digest_name != NULL) { |
270 |
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if ((digest = EVP_get_digestbyname(digest_name)) == NULL) { |
271 |
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fprintf(stderr, |
272 |
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"Unknown message digest algorithm '%s'\n", |
273 |
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digest_name); |
274 |
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goto end; |
275 |
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} |
276 |
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} |
277 |
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|
278 |
|
8 |
x = load_crl(crl_config.infile, crl_config.informat); |
279 |
✓✗ |
8 |
if (x == NULL) |
280 |
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goto end; |
281 |
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|
282 |
✗✓ |
8 |
if (crl_config.verify) { |
283 |
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store = X509_STORE_new(); |
284 |
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lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file()); |
285 |
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if (lookup == NULL) |
286 |
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goto end; |
287 |
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if (!X509_LOOKUP_load_file(lookup, crl_config.cafile, |
288 |
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X509_FILETYPE_PEM)) |
289 |
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X509_LOOKUP_load_file(lookup, NULL, |
290 |
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X509_FILETYPE_DEFAULT); |
291 |
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|
292 |
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lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir()); |
293 |
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if (lookup == NULL) |
294 |
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goto end; |
295 |
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if (!X509_LOOKUP_add_dir(lookup, crl_config.capath, |
296 |
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X509_FILETYPE_PEM)) |
297 |
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X509_LOOKUP_add_dir(lookup, NULL, |
298 |
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X509_FILETYPE_DEFAULT); |
299 |
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ERR_clear_error(); |
300 |
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|
301 |
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if (!X509_STORE_CTX_init(&ctx, store, NULL, NULL)) { |
302 |
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BIO_printf(bio_err, |
303 |
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"Error initialising X509 store\n"); |
304 |
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goto end; |
305 |
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} |
306 |
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i = X509_STORE_get_by_subject(&ctx, X509_LU_X509, |
307 |
|
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X509_CRL_get_issuer(x), &xobj); |
308 |
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if (i <= 0) { |
309 |
|
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BIO_printf(bio_err, |
310 |
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"Error getting CRL issuer certificate\n"); |
311 |
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goto end; |
312 |
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|
} |
313 |
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pkey = X509_get_pubkey(xobj.data.x509); |
314 |
|
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X509_OBJECT_free_contents(&xobj); |
315 |
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if (!pkey) { |
316 |
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BIO_printf(bio_err, |
317 |
|
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"Error getting CRL issuer public key\n"); |
318 |
|
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goto end; |
319 |
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|
} |
320 |
|
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i = X509_CRL_verify(x, pkey); |
321 |
|
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EVP_PKEY_free(pkey); |
322 |
|
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if (i < 0) |
323 |
|
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goto end; |
324 |
|
|
if (i == 0) |
325 |
|
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BIO_printf(bio_err, "verify failure\n"); |
326 |
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else |
327 |
|
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BIO_printf(bio_err, "verify OK\n"); |
328 |
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} |
329 |
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|
330 |
|
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/* Print requested information the order that the flags were given. */ |
331 |
✓✓ |
80 |
for (i = 1; i <= argc; i++) { |
332 |
✗✓ |
32 |
if (crl_config.issuer == i) { |
333 |
|
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print_name(bio_out, "issuer=", |
334 |
|
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X509_CRL_get_issuer(x), nmflag); |
335 |
|
|
} |
336 |
✗✓ |
32 |
if (crl_config.crlnumber == i) { |
337 |
|
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ASN1_INTEGER *crlnum; |
338 |
|
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crlnum = X509_CRL_get_ext_d2i(x, |
339 |
|
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NID_crl_number, NULL, NULL); |
340 |
|
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BIO_printf(bio_out, "crlNumber="); |
341 |
|
|
if (crlnum) { |
342 |
|
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i2a_ASN1_INTEGER(bio_out, crlnum); |
343 |
|
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ASN1_INTEGER_free(crlnum); |
344 |
|
|
} else |
345 |
|
|
BIO_puts(bio_out, "<NONE>"); |
346 |
|
|
BIO_printf(bio_out, "\n"); |
347 |
|
|
} |
348 |
✗✓ |
32 |
if (crl_config.hash == i) { |
349 |
|
|
BIO_printf(bio_out, "%08lx\n", |
350 |
|
|
X509_NAME_hash(X509_CRL_get_issuer(x))); |
351 |
|
|
} |
352 |
|
|
#ifndef OPENSSL_NO_MD5 |
353 |
✗✓ |
32 |
if (crl_config.hash_old == i) { |
354 |
|
|
BIO_printf(bio_out, "%08lx\n", |
355 |
|
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X509_NAME_hash_old(X509_CRL_get_issuer(x))); |
356 |
|
|
} |
357 |
|
|
#endif |
358 |
✗✓ |
32 |
if (crl_config.lastupdate == i) { |
359 |
|
|
BIO_printf(bio_out, "lastUpdate="); |
360 |
|
|
ASN1_TIME_print(bio_out, |
361 |
|
|
X509_CRL_get_lastUpdate(x)); |
362 |
|
|
BIO_printf(bio_out, "\n"); |
363 |
|
|
} |
364 |
✗✓ |
32 |
if (crl_config.nextupdate == i) { |
365 |
|
|
BIO_printf(bio_out, "nextUpdate="); |
366 |
|
|
if (X509_CRL_get_nextUpdate(x)) |
367 |
|
|
ASN1_TIME_print(bio_out, |
368 |
|
|
X509_CRL_get_nextUpdate(x)); |
369 |
|
|
else |
370 |
|
|
BIO_printf(bio_out, "NONE"); |
371 |
|
|
BIO_printf(bio_out, "\n"); |
372 |
|
|
} |
373 |
✓✓ |
32 |
if (crl_config.fingerprint == i) { |
374 |
|
|
int j; |
375 |
|
8 |
unsigned int n; |
376 |
|
8 |
unsigned char md[EVP_MAX_MD_SIZE]; |
377 |
|
|
|
378 |
✗✓ |
8 |
if (!X509_CRL_digest(x, digest, md, &n)) { |
379 |
|
|
BIO_printf(bio_err, "out of memory\n"); |
380 |
|
|
goto end; |
381 |
|
|
} |
382 |
|
16 |
BIO_printf(bio_out, "%s Fingerprint=", |
383 |
|
8 |
OBJ_nid2sn(EVP_MD_type(digest))); |
384 |
✓✓ |
336 |
for (j = 0; j < (int) n; j++) { |
385 |
|
320 |
BIO_printf(bio_out, "%02X%c", md[j], |
386 |
|
160 |
(j + 1 == (int)n) ? '\n' : ':'); |
387 |
|
|
} |
388 |
✓✓✓ |
56 |
} |
389 |
|
|
} |
390 |
|
|
|
391 |
|
8 |
out = BIO_new(BIO_s_file()); |
392 |
✗✓ |
8 |
if (out == NULL) { |
393 |
|
|
ERR_print_errors(bio_err); |
394 |
|
|
goto end; |
395 |
|
|
} |
396 |
✓✗ |
8 |
if (crl_config.outfile == NULL) { |
397 |
|
8 |
BIO_set_fp(out, stdout, BIO_NOCLOSE); |
398 |
|
8 |
} else { |
399 |
|
|
if (BIO_write_filename(out, crl_config.outfile) <= 0) { |
400 |
|
|
perror(crl_config.outfile); |
401 |
|
|
goto end; |
402 |
|
|
} |
403 |
|
|
} |
404 |
|
|
|
405 |
✗✓ |
8 |
if (crl_config.text) |
406 |
|
|
X509_CRL_print(out, x); |
407 |
|
|
|
408 |
✗✓ |
8 |
if (crl_config.noout) { |
409 |
|
|
ret = 0; |
410 |
|
|
goto end; |
411 |
|
|
} |
412 |
✗✓ |
8 |
if (crl_config.outformat == FORMAT_ASN1) |
413 |
|
|
i = (int) i2d_X509_CRL_bio(out, x); |
414 |
✓✗ |
8 |
else if (crl_config.outformat == FORMAT_PEM) |
415 |
|
8 |
i = PEM_write_bio_X509_CRL(out, x); |
416 |
|
|
else { |
417 |
|
|
BIO_printf(bio_err, |
418 |
|
|
"bad output format specified for outfile\n"); |
419 |
|
|
goto end; |
420 |
|
|
} |
421 |
✗✓ |
8 |
if (!i) { |
422 |
|
|
BIO_printf(bio_err, "unable to write CRL\n"); |
423 |
|
|
goto end; |
424 |
|
|
} |
425 |
|
8 |
ret = 0; |
426 |
|
|
|
427 |
|
|
end: |
428 |
|
16 |
BIO_free_all(out); |
429 |
|
16 |
BIO_free_all(bio_out); |
430 |
|
16 |
bio_out = NULL; |
431 |
|
16 |
X509_CRL_free(x); |
432 |
✗✓ |
16 |
if (store) { |
433 |
|
|
X509_STORE_CTX_cleanup(&ctx); |
434 |
|
|
X509_STORE_free(store); |
435 |
|
|
} |
436 |
|
|
|
437 |
|
16 |
return (ret); |
438 |
|
16 |
} |
439 |
|
|
|
440 |
|
|
static X509_CRL * |
441 |
|
|
load_crl(char *infile, int format) |
442 |
|
|
{ |
443 |
|
|
X509_CRL *x = NULL; |
444 |
|
|
BIO *in = NULL; |
445 |
|
|
|
446 |
|
16 |
in = BIO_new(BIO_s_file()); |
447 |
✗✓ |
8 |
if (in == NULL) { |
448 |
|
|
ERR_print_errors(bio_err); |
449 |
|
|
goto end; |
450 |
|
|
} |
451 |
✗✓ |
8 |
if (infile == NULL) |
452 |
|
|
BIO_set_fp(in, stdin, BIO_NOCLOSE); |
453 |
|
|
else { |
454 |
✗✓ |
8 |
if (BIO_read_filename(in, infile) <= 0) { |
455 |
|
|
perror(infile); |
456 |
|
|
goto end; |
457 |
|
|
} |
458 |
|
|
} |
459 |
✗✓ |
8 |
if (format == FORMAT_ASN1) |
460 |
|
|
x = d2i_X509_CRL_bio(in, NULL); |
461 |
✓✗ |
8 |
else if (format == FORMAT_PEM) |
462 |
|
8 |
x = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL); |
463 |
|
|
else { |
464 |
|
|
BIO_printf(bio_err, |
465 |
|
|
"bad input format specified for input crl\n"); |
466 |
|
|
goto end; |
467 |
|
|
} |
468 |
✗✓ |
8 |
if (x == NULL) { |
469 |
|
|
BIO_printf(bio_err, "unable to load CRL\n"); |
470 |
|
|
ERR_print_errors(bio_err); |
471 |
|
|
goto end; |
472 |
|
|
} |
473 |
|
|
|
474 |
|
|
end: |
475 |
|
8 |
BIO_free(in); |
476 |
|
8 |
return (x); |
477 |
|
|
} |