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/*
 * Copyright (C) 1997-2000 Sensus Consulting Ltd.
 * Matt Newman <matt@sensus.org>
 *
 * $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tlsX509.c,v 1.3 2003/07/07 20:24:49 hobbs Exp $
 * $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tlsX509.c,v 1.4 2004/03/17 17:53:57 razzell Exp $
 */
#include "tlsInt.h"

static int min(int a, int b)
{
    return (a < b) ? a : b;
}

static int max(int a, int b)
{
    return (a > b) ? a : b;
}

/*
 * ASN1_UTCTIME_tostr --
 */
static char *
ASN1_UTCTIME_tostr(ASN1_UTCTIME *tm)
{
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Tcl_Obj*
Tls_NewX509Obj( interp, cert)
    Tcl_Interp *interp;
    X509 *cert;
{
    Tcl_Obj *certPtr = Tcl_NewListObj( 0, NULL);
    BIO *bio;
    int serial;
    int n;
    unsigned long flags;
    char subject[BUFSIZ];
    char issuer[BUFSIZ];
    char serial[BUFSIZ];
    char notBefore[BUFSIZ];
    char notAfter[BUFSIZ];
#ifndef NO_SSL_SHA
    int shai;
    char sha_hash[SHA_DIGEST_LENGTH*2];
    const char *shachars="0123456789ABCDEF";
#endif

    if ((bio = BIO_new(BIO_s_mem())) == NULL) {
	subject[0] = 0;
	issuer[0]  = 0;
	serial[0]  = 0;
    } else {
	flags = XN_FLAG_RFC2253 | ASN1_STRFLGS_UTF8_CONVERT;
	flags &= ~ASN1_STRFLGS_ESC_MSB;
    serial = ASN1_INTEGER_get(X509_get_serialNumber(cert));
    X509_NAME_oneline(X509_get_subject_name(cert),subject,sizeof(subject));
    X509_NAME_oneline(X509_get_issuer_name(cert),issuer,sizeof(issuer));

	X509_NAME_print_ex(bio, X509_get_subject_name(cert), 0, flags); 
	n = BIO_read(bio, subject, min(BIO_pending(bio), BUFSIZ - 1));
	n = max(n, 0);
	subject[n] = 0;
	BIO_flush(bio);

	X509_NAME_print_ex(bio, X509_get_issuer_name(cert), 0, flags);
	n = BIO_read(bio, issuer, min(BIO_pending(bio), BUFSIZ - 1));
	n = max(n, 0);
	issuer[n] = 0;
	BIO_flush(bio);

	i2a_ASN1_INTEGER(bio, X509_get_serialNumber(cert));
	n = BIO_read(bio, serial, min(BIO_pending(bio), BUFSIZ - 1));
	n = max(n, 0);
	serial[n] = 0;
	BIO_flush(bio);

	BIO_free(bio);
    }

    strcpy( notBefore, ASN1_UTCTIME_tostr( X509_get_notBefore(cert) ));
    strcpy( notAfter, ASN1_UTCTIME_tostr( X509_get_notAfter(cert) ));

#ifndef NO_SSL_SHA
    for (shai=0;shai<SHA_DIGEST_LENGTH;shai++)
    {
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	    Tcl_NewStringObj( "notAfter", -1) );
    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( notAfter, -1) );

    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( "serial", -1) );
    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewIntObj( serial) );
	    Tcl_NewStringObj( serial, -1) );

    return certPtr;
}
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