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    /* $OpenBSD: pkcs7.c,v 1.9 2017/01/20 08:57:12 deraadt Exp $ */  | 
    
    
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    /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)  | 
    
    
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     * All rights reserved.  | 
    
    
    4  | 
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     *  | 
    
    
    5  | 
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     * This package is an SSL implementation written  | 
    
    
    6  | 
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     * by Eric Young (eay@cryptsoft.com).  | 
    
    
    7  | 
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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,  | 
    
    
    12  | 
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     * lhash, DES, etc., code; not just the SSL code.  The SSL documentation  | 
    
    
    13  | 
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     * included with this distribution is covered by the same copyright terms  | 
    
    
    14  | 
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     * except that the holder is Tim Hudson (tjh@cryptsoft.com).  | 
    
    
    15  | 
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     *  | 
    
    
    16  | 
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     * Copyright remains Eric Young's, and as such any Copyright notices in  | 
    
    
    17  | 
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     * the code are not to be removed.  | 
    
    
    18  | 
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     * If this package is used in a product, Eric Young should be given attribution  | 
    
    
    19  | 
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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  | 
    
    
    21  | 
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     * in documentation (online or textual) provided with the package.  | 
    
    
    22  | 
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     *  | 
    
    
    23  | 
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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  | 
    
    
    25  | 
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     * are met:  | 
    
    
    26  | 
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     * 1. Redistributions of source code must retain the copyright  | 
    
    
    27  | 
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     *    notice, this list of conditions and the following disclaimer.  | 
    
    
    28  | 
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     * 2. Redistributions in binary form must reproduce the above copyright  | 
    
    
    29  | 
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     *    notice, this list of conditions and the following disclaimer in the  | 
    
    
    30  | 
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     *    documentation and/or other materials provided with the distribution.  | 
    
    
    31  | 
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     * 3. All advertising materials mentioning features or use of this software  | 
    
    
    32  | 
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     *    must display the following acknowledgement:  | 
    
    
    33  | 
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     *    "This product includes cryptographic software written by  | 
    
    
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     *     Eric Young (eay@cryptsoft.com)"  | 
    
    
    35  | 
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     *    The word 'cryptographic' can be left out if the rouines from the library  | 
    
    
    36  | 
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     *    being used are not cryptographic related :-).  | 
    
    
    37  | 
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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:  | 
    
    
    39  | 
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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  | 
    
    
    43  | 
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     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE  | 
    
    
    44  | 
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     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE  | 
    
    
    45  | 
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     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL  | 
    
    
    46  | 
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     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS  | 
    
    
    47  | 
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     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)  | 
    
    
    48  | 
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     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT  | 
    
    
    49  | 
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     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY  | 
    
    
    50  | 
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     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF  | 
    
    
    51  | 
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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  | 
    
    
    56  | 
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     * [including the GNU Public Licence.]  | 
    
    
    57  | 
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     */  | 
    
    
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    #include <stdio.h>  | 
    
    
    60  | 
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    #include <stdlib.h>  | 
    
    
    61  | 
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    #include <string.h>  | 
    
    
    62  | 
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    #include <time.h>  | 
    
    
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    64  | 
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    #include "apps.h"  | 
    
    
    65  | 
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    66  | 
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    #include <openssl/err.h>  | 
    
    
    67  | 
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    #include <openssl/evp.h>  | 
    
    
    68  | 
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    #include <openssl/objects.h>  | 
    
    
    69  | 
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    #include <openssl/pem.h>  | 
    
    
    70  | 
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    #include <openssl/pkcs7.h>  | 
    
    
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    #include <openssl/x509.h>  | 
    
    
    72  | 
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    73  | 
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    static struct { | 
    
    
    74  | 
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    	char *infile;  | 
    
    
    75  | 
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    	int informat;  | 
    
    
    76  | 
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    	int noout;  | 
    
    
    77  | 
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    	char *outfile;  | 
    
    
    78  | 
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    	int outformat;  | 
    
    
    79  | 
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    	int p7_print;  | 
    
    
    80  | 
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    	int print_certs;  | 
    
    
    81  | 
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    	int text;  | 
    
    
    82  | 
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    } pkcs7_config;  | 
    
    
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    static struct option pkcs7_options[] = { | 
    
    
    85  | 
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    	{ | 
    
    
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    		.name = "in",  | 
    
    
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    		.argname = "file",  | 
    
    
    88  | 
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    		.desc = "Input file (default stdin)",  | 
    
    
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    		.type = OPTION_ARG,  | 
    
    
    90  | 
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    		.opt.arg = &pkcs7_config.infile,  | 
    
    
    91  | 
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    	},  | 
    
    
    92  | 
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    	{ | 
    
    
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    		.name = "inform",  | 
    
    
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    		.argname = "format",  | 
    
    
    95  | 
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    		.desc = "Input format (DER or PEM (default))",  | 
    
    
    96  | 
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    		.type = OPTION_ARG_FORMAT,  | 
    
    
    97  | 
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    		.opt.value = &pkcs7_config.informat,  | 
    
    
    98  | 
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    	},  | 
    
    
    99  | 
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    	{ | 
    
    
    100  | 
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    		.name = "noout",  | 
    
    
    101  | 
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    		.desc = "Do not output encoded version of PKCS#7 structure",  | 
    
    
    102  | 
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    		.type = OPTION_FLAG,  | 
    
    
    103  | 
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    		.opt.flag = &pkcs7_config.noout,  | 
    
    
    104  | 
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    	},  | 
    
    
    105  | 
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    	{ | 
    
    
    106  | 
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    		.name = "out",  | 
    
    
    107  | 
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    		.argname = "file",  | 
    
    
    108  | 
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    		.desc = "Output file (default stdout)",  | 
    
    
    109  | 
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    		.type = OPTION_ARG,  | 
    
    
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    		.opt.arg = &pkcs7_config.outfile,  | 
    
    
    111  | 
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    	},  | 
    
    
    112  | 
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    	{ | 
    
    
    113  | 
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    		.name = "outform",  | 
    
    
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    		.argname = "format",  | 
    
    
    115  | 
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    		.desc = "Output format (DER or PEM (default))",  | 
    
    
    116  | 
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    		.type = OPTION_ARG_FORMAT,  | 
    
    
    117  | 
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    		.opt.value = &pkcs7_config.outformat,  | 
    
    
    118  | 
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    	},  | 
    
    
    119  | 
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    	{ | 
    
    
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    		.name = "print",  | 
    
    
    121  | 
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    		.desc = "Output ASN.1 representation of PKCS#7 structure",  | 
    
    
    122  | 
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    		.type = OPTION_FLAG,  | 
    
    
    123  | 
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    		.opt.flag = &pkcs7_config.p7_print,  | 
    
    
    124  | 
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    	},  | 
    
    
    125  | 
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    	{ | 
    
    
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    		.name = "print_certs",  | 
    
    
    127  | 
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    		.desc = "Print out any certificates or CRLs contained in file",  | 
    
    
    128  | 
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    		.type = OPTION_FLAG,  | 
    
    
    129  | 
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    		.opt.flag = &pkcs7_config.print_certs,  | 
    
    
    130  | 
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    	},  | 
    
    
    131  | 
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    	{ | 
    
    
    132  | 
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    		.name = "text",  | 
    
    
    133  | 
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    		.desc = "Print out full certificate details",  | 
    
    
    134  | 
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    		.type = OPTION_FLAG,  | 
    
    
    135  | 
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    		.opt.flag = &pkcs7_config.text,  | 
    
    
    136  | 
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    	},  | 
    
    
    137  | 
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    	{ NULL }, | 
    
    
    138  | 
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    };  | 
    
    
    139  | 
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    140  | 
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    static void  | 
    
    
    141  | 
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    pkcs7_usage()  | 
    
    
    142  | 
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    { | 
    
    
    143  | 
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    16  | 
    	fprintf(stderr, "usage: pkcs7 [-in file] "  | 
    
    
    144  | 
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    	    "[-inform DER | PEM] [-noout]\n"  | 
    
    
    145  | 
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    	    "    [-out file] [-outform DER | PEM] [-print_certs] [-text]\n\n");  | 
    
    
    146  | 
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            options_usage(pkcs7_options);  | 
    
    
    147  | 
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    8  | 
    }  | 
    
    
    148  | 
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    149  | 
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    int  | 
    
    
    150  | 
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    pkcs7_main(int argc, char **argv)  | 
    
    
    151  | 
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    { | 
    
    
    152  | 
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    	PKCS7 *p7 = NULL;  | 
    
    
    153  | 
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    	BIO *in = NULL, *out = NULL;  | 
    
    
    154  | 
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    	int ret = 1;  | 
    
    
    155  | 
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    	int i;  | 
    
    
    156  | 
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    157  | 
    ✓✗ | 
    32  | 
    	if (single_execution) { | 
    
    
    158  | 
    ✗✓ | 
    16  | 
    		if (pledge("stdio cpath wpath rpath flock", NULL) == -1) { | 
    
    
    159  | 
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    			perror("pledge"); | 
    
    
    160  | 
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    			exit(1);  | 
    
    
    161  | 
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    		}  | 
    
    
    162  | 
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    	}  | 
    
    
    163  | 
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    164  | 
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    16  | 
    	memset(&pkcs7_config, 0, sizeof(pkcs7_config));  | 
    
    
    165  | 
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    166  | 
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    16  | 
    	pkcs7_config.informat = FORMAT_PEM;  | 
    
    
    167  | 
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    16  | 
    	pkcs7_config.outformat = FORMAT_PEM;  | 
    
    
    168  | 
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    169  | 
    ✓✓ | 
    16  | 
    	if (options_parse(argc, argv, pkcs7_options, NULL, NULL) != 0) { | 
    
    
    170  | 
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    8  | 
    		pkcs7_usage();  | 
    
    
    171  | 
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    8  | 
    		goto end;  | 
    
    
    172  | 
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    	}  | 
    
    
    173  | 
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    174  | 
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    8  | 
    	in = BIO_new(BIO_s_file());  | 
    
    
    175  | 
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    8  | 
    	out = BIO_new(BIO_s_file());  | 
    
    
    176  | 
    ✗✓ | 
    8  | 
    	if ((in == NULL) || (out == NULL)) { | 
    
    
    177  | 
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    		ERR_print_errors(bio_err);  | 
    
    
    178  | 
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    		goto end;  | 
    
    
    179  | 
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    	}  | 
    
    
    180  | 
    ✗✓ | 
    8  | 
    	if (pkcs7_config.infile == NULL)  | 
    
    
    181  | 
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    		BIO_set_fp(in, stdin, BIO_NOCLOSE);  | 
    
    
    182  | 
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    	else { | 
    
    
    183  | 
    ✗✓ | 
    8  | 
    		if (BIO_read_filename(in, pkcs7_config.infile) <= 0) { | 
    
    
    184  | 
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    			perror(pkcs7_config.infile);  | 
    
    
    185  | 
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    			goto end;  | 
    
    
    186  | 
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    		}  | 
    
    
    187  | 
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    	}  | 
    
    
    188  | 
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    189  | 
    ✗✓ | 
    8  | 
    	if (pkcs7_config.informat == FORMAT_ASN1)  | 
    
    
    190  | 
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    		p7 = d2i_PKCS7_bio(in, NULL);  | 
    
    
    191  | 
    ✓✗ | 
    8  | 
    	else if (pkcs7_config.informat == FORMAT_PEM)  | 
    
    
    192  | 
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    8  | 
    		p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);  | 
    
    
    193  | 
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    	else { | 
    
    
    194  | 
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    		BIO_printf(bio_err, "bad input format specified for pkcs7 object\n");  | 
    
    
    195  | 
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    		goto end;  | 
    
    
    196  | 
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    	}  | 
    
    
    197  | 
    ✗✓ | 
    8  | 
    	if (p7 == NULL) { | 
    
    
    198  | 
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    		BIO_printf(bio_err, "unable to load PKCS7 object\n");  | 
    
    
    199  | 
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    		ERR_print_errors(bio_err);  | 
    
    
    200  | 
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    		goto end;  | 
    
    
    201  | 
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    	}  | 
    
    
    202  | 
    ✗✓ | 
    8  | 
    	if (pkcs7_config.outfile == NULL) { | 
    
    
    203  | 
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    		BIO_set_fp(out, stdout, BIO_NOCLOSE);  | 
    
    
    204  | 
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    	} else { | 
    
    
    205  | 
    ✗✓ | 
    8  | 
    		if (BIO_write_filename(out, pkcs7_config.outfile) <= 0) { | 
    
    
    206  | 
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    			perror(pkcs7_config.outfile);  | 
    
    
    207  | 
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    			goto end;  | 
    
    
    208  | 
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    		}  | 
    
    
    209  | 
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    	}  | 
    
    
    210  | 
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    211  | 
    ✗✓ | 
    8  | 
    	if (pkcs7_config.p7_print)  | 
    
    
    212  | 
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    		PKCS7_print_ctx(out, p7, 0, NULL);  | 
    
    
    213  | 
     | 
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    214  | 
    ✓✗ | 
    8  | 
    	if (pkcs7_config.print_certs) { | 
    
    
    215  | 
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    		STACK_OF(X509) * certs = NULL;  | 
    
    
    216  | 
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    		STACK_OF(X509_CRL) * crls = NULL;  | 
    
    
    217  | 
     | 
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    218  | 
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    16  | 
    		i = OBJ_obj2nid(p7->type);  | 
    
    
    219  | 
    ✓✗✓ | 
    16  | 
    		switch (i) { | 
    
    
    220  | 
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    		case NID_pkcs7_signed:  | 
    
    
    221  | 
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    8  | 
    			certs = p7->d.sign->cert;  | 
    
    
    222  | 
     | 
    8  | 
    			crls = p7->d.sign->crl;  | 
    
    
    223  | 
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    8  | 
    			break;  | 
    
    
    224  | 
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    		case NID_pkcs7_signedAndEnveloped:  | 
    
    
    225  | 
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    			certs = p7->d.signed_and_enveloped->cert;  | 
    
    
    226  | 
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    			crls = p7->d.signed_and_enveloped->crl;  | 
    
    
    227  | 
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    			break;  | 
    
    
    228  | 
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    		default:  | 
    
    
    229  | 
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    			break;  | 
    
    
    230  | 
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    		}  | 
    
    
    231  | 
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    232  | 
    ✓✗ | 
    8  | 
    		if (certs != NULL) { | 
    
    
    233  | 
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    			X509 *x;  | 
    
    
    234  | 
     | 
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    235  | 
    ✓✓ | 
    32  | 
    			for (i = 0; i < sk_X509_num(certs); i++) { | 
    
    
    236  | 
     | 
    8  | 
    				x = sk_X509_value(certs, i);  | 
    
    
    237  | 
    ✓✗ | 
    8  | 
    				if (pkcs7_config.text)  | 
    
    
    238  | 
     | 
    8  | 
    					X509_print(out, x);  | 
    
    
    239  | 
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    				else  | 
    
    
    240  | 
     | 
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    					dump_cert_text(out, x);  | 
    
    
    241  | 
     | 
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    242  | 
    ✓✗ | 
    8  | 
    				if (!pkcs7_config.noout)  | 
    
    
    243  | 
     | 
    8  | 
    					PEM_write_bio_X509(out, x);  | 
    
    
    244  | 
     | 
    8  | 
    				BIO_puts(out, "\n");  | 
    
    
    245  | 
     | 
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    			}  | 
    
    
    246  | 
     | 
    8  | 
    		}  | 
    
    
    247  | 
    ✓✗ | 
    8  | 
    		if (crls != NULL) { | 
    
    
    248  | 
     | 
     | 
    			X509_CRL *crl;  | 
    
    
    249  | 
     | 
     | 
     | 
    
    
    250  | 
    ✓✓ | 
    32  | 
    			for (i = 0; i < sk_X509_CRL_num(crls); i++) { | 
    
    
    251  | 
     | 
    8  | 
    				crl = sk_X509_CRL_value(crls, i);  | 
    
    
    252  | 
     | 
     | 
     | 
    
    
    253  | 
     | 
    8  | 
    				X509_CRL_print(out, crl);  | 
    
    
    254  | 
     | 
     | 
     | 
    
    
    255  | 
    ✓✗ | 
    8  | 
    				if (!pkcs7_config.noout)  | 
    
    
    256  | 
     | 
    8  | 
    					PEM_write_bio_X509_CRL(out, crl);  | 
    
    
    257  | 
     | 
    8  | 
    				BIO_puts(out, "\n");  | 
    
    
    258  | 
     | 
     | 
    			}  | 
    
    
    259  | 
    ✓✗ | 
    8  | 
    		}  | 
    
    
    260  | 
     | 
     | 
    		ret = 0;  | 
    
    
    261  | 
     | 
     | 
    		goto end;  | 
    
    
    262  | 
     | 
     | 
    	}  | 
    
    
    263  | 
     | 
     | 
    	if (!pkcs7_config.noout) { | 
    
    
    264  | 
     | 
     | 
    		if (pkcs7_config.outformat == FORMAT_ASN1)  | 
    
    
    265  | 
     | 
     | 
    			i = i2d_PKCS7_bio(out, p7);  | 
    
    
    266  | 
     | 
     | 
    		else if (pkcs7_config.outformat == FORMAT_PEM)  | 
    
    
    267  | 
     | 
     | 
    			i = PEM_write_bio_PKCS7(out, p7);  | 
    
    
    268  | 
     | 
     | 
    		else { | 
    
    
    269  | 
     | 
     | 
    			BIO_printf(bio_err, "bad output format specified for outfile\n");  | 
    
    
    270  | 
     | 
     | 
    			goto end;  | 
    
    
    271  | 
     | 
     | 
    		}  | 
    
    
    272  | 
     | 
     | 
     | 
    
    
    273  | 
     | 
     | 
    		if (!i) { | 
    
    
    274  | 
     | 
     | 
    			BIO_printf(bio_err, "unable to write pkcs7 object\n");  | 
    
    
    275  | 
     | 
     | 
    			ERR_print_errors(bio_err);  | 
    
    
    276  | 
     | 
     | 
    			goto end;  | 
    
    
    277  | 
     | 
     | 
    		}  | 
    
    
    278  | 
     | 
     | 
    	}  | 
    
    
    279  | 
     | 
     | 
    	ret = 0;  | 
    
    
    280  | 
     | 
     | 
    end:  | 
    
    
    281  | 
    ✓✓ | 
    16  | 
    	if (p7 != NULL)  | 
    
    
    282  | 
     | 
    8  | 
    		PKCS7_free(p7);  | 
    
    
    283  | 
    ✓✓ | 
    16  | 
    	if (in != NULL)  | 
    
    
    284  | 
     | 
    8  | 
    		BIO_free(in);  | 
    
    
    285  | 
    ✓✓ | 
    16  | 
    	if (out != NULL)  | 
    
    
    286  | 
     | 
    8  | 
    		BIO_free_all(out);  | 
    
    
    287  | 
     | 
     | 
     | 
    
    
    288  | 
     | 
    16  | 
    	return (ret);  | 
    
    
    289  | 
     | 
    16  | 
    }  |