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/*
 * Copyright (C) 1997-2000 Sensus Consulting Ltd.
 * Matt Newman <[email protected]>
 */






#include "tlsInt.h"

/*
 *  Ensure these are not macros - known to be defined on Win32 
 */
#ifdef min
#undef min





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/*
 * Copyright (C) 1997-2000 Sensus Consulting Ltd.
 * Matt Newman <[email protected]>
 */
#include <tcl.h>
#include <stdio.h>
#include <openssl/bio.h>
#include <openssl/sha.h>
#include <openssl/x509.h>
#include <openssl/asn1.h>
#include "tlsInt.h"

/*
 *  Ensure these are not macros - known to be defined on Win32 
 */
#ifdef min
#undef min
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static char *
ASN1_UTCTIME_tostr(ASN1_UTCTIME *tm)
{
    static char bp[128];
    char *v;
    int gmt=0;
    static char *mon[12]={
	"Jan","Feb","Mar","Apr","May","Jun",
	"Jul","Aug","Sep","Oct","Nov","Dec"};
    int i;
    int y=0,M=0,d=0,h=0,m=0,s=0;
    
    i=tm->length;
    v=(char *)tm->data;
    
    if (i < 10) goto err;
    if (v[i-1] == 'Z') gmt=1;
    for (i=0; i<10; i++)
	if ((v[i] > '9') || (v[i] < '0')) goto err;
    y= (v[0]-'0')*10+(v[1]-'0');
    if (y < 70) y+=100;
    M= (v[2]-'0')*10+(v[3]-'0');
    if ((M > 12) || (M < 1)) goto err;
    d= (v[4]-'0')*10+(v[5]-'0');
    h= (v[6]-'0')*10+(v[7]-'0');
    m=  (v[8]-'0')*10+(v[9]-'0');
    if (	(v[10] >= '0') && (v[10] <= '9') &&
		(v[11] >= '0') && (v[11] <= '9'))
	s=  (v[10]-'0')*10+(v[11]-'0');
    
    sprintf(bp,"%s %2d %02d:%02d:%02d %d%s",
		   mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"");
    return bp;
 err:
    return "Bad time value";
}

/*
 *------------------------------------------------------*








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static char *
ASN1_UTCTIME_tostr(ASN1_UTCTIME *tm)
{
    static char bp[128];
    char *v;
    int gmt=0;
    static char *mon[12]={
        "Jan","Feb","Mar","Apr","May","Jun",
        "Jul","Aug","Sep","Oct","Nov","Dec"};
    int i;
    int y=0,M=0,d=0,h=0,m=0,s=0;
    
    i=tm->length;
    v=(char *)tm->data;
    
    if (i < 10) goto err;
    if (v[i-1] == 'Z') gmt=1;
    for (i=0; i<10; i++)
        if ((v[i] > '9') || (v[i] < '0')) goto err;
    y= (v[0]-'0')*10+(v[1]-'0');
    if (y < 70) y+=100;
    M= (v[2]-'0')*10+(v[3]-'0');
    if ((M > 12) || (M < 1)) goto err;
    d= (v[4]-'0')*10+(v[5]-'0');
    h= (v[6]-'0')*10+(v[7]-'0');
    m=  (v[8]-'0')*10+(v[9]-'0');
    if (	(v[10] >= '0') && (v[10] <= '9') &&
		(v[11] >= '0') && (v[11] <= '9'))
        s=  (v[10]-'0')*10+(v[11]-'0');
    
    sprintf(bp,"%s %2d %02d:%02d:%02d %d%s",
                   mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"");
    return bp;
 err:
    return "Bad time value";
}

/*
 *------------------------------------------------------*
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    char notBefore[BUFSIZ];
    char notAfter[BUFSIZ];
    char certStr[CERT_STR_SIZE], *certStr_p;
    int certStr_len, toRead;
#ifndef NO_SSL_SHA
    char sha1_hash_ascii[SHA_DIGEST_LENGTH * 2 + 1];
    unsigned char sha1_hash_binary[SHA_DIGEST_LENGTH];
    char sha256_hash_ascii[SHA256_DIGEST_LENGTH*2+1];
    unsigned char sha256_hash_binary[SHA256_DIGEST_LENGTH];
    const char *shachars="0123456789ABCDEF";

    sha1_hash_ascii[SHA_DIGEST_LENGTH * 2] = '\0';
    sha256_hash_ascii[SHA256_DIGEST_LENGTH * 2] = '\0';
#endif









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    char notBefore[BUFSIZ];
    char notAfter[BUFSIZ];
    char certStr[CERT_STR_SIZE], *certStr_p;
    int certStr_len, toRead;
#ifndef NO_SSL_SHA
    char sha1_hash_ascii[SHA_DIGEST_LENGTH * 2 + 1];
    unsigned char sha1_hash_binary[SHA_DIGEST_LENGTH];
    char sha256_hash_ascii[SHA256_DIGEST_LENGTH * 2 + 1];
    unsigned char sha256_hash_binary[SHA256_DIGEST_LENGTH];
    const char *shachars="0123456789ABCDEF";

    sha1_hash_ascii[SHA_DIGEST_LENGTH * 2] = '\0';
    sha256_hash_ascii[SHA256_DIGEST_LENGTH * 2] = '\0';
#endif
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	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;
	(void)BIO_flush(bio);

	if (PEM_write_bio_X509(bio, cert)) {
	    certStr_p = certStr;
	    certStr_len = 0;
	    while (1) {
		toRead = min(BIO_pending(bio), CERT_STR_SIZE - certStr_len - 1);
		toRead = min(toRead, BUFSIZ);
		if (toRead == 0) {
		    break;
		}
		dprintf("Reading %i bytes from the certificate...", toRead);
		n = BIO_read(bio, certStr_p, toRead);
		if (n <= 0) {
		    break;
		}
		certStr_len += n;
		certStr_p   += n;
	    }
	    *certStr_p = '\0';
	    (void)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
    /* SHA1 */
    X509_digest(cert, EVP_sha1(), sha1_hash_binary, NULL);
    for (int n = 0; n < SHA_DIGEST_LENGTH; n++) {
	sha1_hash_ascii[n * 2]     = shachars[(sha1_hash_binary[n] & 0xF0) >> 4];
	sha1_hash_ascii[n * 2 + 1] = shachars[(sha1_hash_binary[n] & 0x0F)];
    }
    Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj("sha1_hash", -1) );
    Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj(sha1_hash_ascii, SHA_DIGEST_LENGTH * 2) );

    /* SHA256 */
    X509_digest(cert, EVP_sha256(), sha256_hash_binary, NULL);
    for (int n = 0; n < SHA256_DIGEST_LENGTH; n++) {








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	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;
	(void)BIO_flush(bio);

        if (PEM_write_bio_X509(bio, cert)) {
            certStr_p = certStr;
            certStr_len = 0;
            while (1) {
                toRead = min(BIO_pending(bio), CERT_STR_SIZE - certStr_len - 1);
                toRead = min(toRead, BUFSIZ);
                if (toRead == 0) {
                    break;
                }
                dprintf("Reading %i bytes from the certificate...", toRead);
                n = BIO_read(bio, certStr_p, toRead);
                if (n <= 0) {
                    break;
                }
                certStr_len += n;
                certStr_p   += n;
            }
            *certStr_p = '\0';
            (void)BIO_flush(bio);
        }

	BIO_free(bio);
    }

#if OPENSSL_VERSION_NUMBER < 0x10100000L
    strcpy( notBefore, ASN1_UTCTIME_tostr( X509_get_notBefore(cert) ));
    strcpy( notAfter, ASN1_UTCTIME_tostr( X509_get_notAfter(cert) ));
#else
    strcpy( notBefore, ASN1_UTCTIME_tostr( X509_getm_notBefore(cert) ));
    strcpy( notAfter, ASN1_UTCTIME_tostr( X509_getm_notAfter(cert) ));
#endif

#ifndef NO_SSL_SHA
    /* SHA1 */
    X509_digest(cert, EVP_sha1(), sha1_hash_binary, NULL);
    for (int n = 0; n < SHA_DIGEST_LENGTH; n++) {
        sha1_hash_ascii[n*2]   = shachars[(sha1_hash_binary[n] & 0xF0) >> 4];
        sha1_hash_ascii[n*2+1] = shachars[(sha1_hash_binary[n] & 0x0F)];
    }
    Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj("sha1_hash", -1) );
    Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj(sha1_hash_ascii, SHA_DIGEST_LENGTH * 2) );

    /* SHA256 */
    X509_digest(cert, EVP_sha256(), sha256_hash_binary, NULL);
    for (int n = 0; n < SHA256_DIGEST_LENGTH; n++) {
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