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/*
* Copyright (C) 1997-2000 Sensus Consulting Ltd.
* Matt Newman <matt@sensus.org>
*
* $Header: /cvsroot/tls/tls/tlsX509.c,v 1.5 2004/06/29 10:58:08 patthoyts Exp $
*/
#include "tlsInt.h"
/*
* Ensure these are not macros - known to be defined on Win32
*/
#ifdef min
#undef min
#endif
#ifdef max
#undef max
#endif
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)
{
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";
}
/*
*------------------------------------------------------*
*
* Tls_NewX509Obj --
*
* ------------------------------------------------*
* Converts a X509 certificate into a Tcl_Obj
* ------------------------------------------------*
*
* Sideeffects:
* None
*
* Result:
* A Tcl List Object representing the provided
* X509 certificate.
*
*------------------------------------------------------*
*/
Tcl_Obj*
Tls_NewX509Obj( interp, cert)
Tcl_Interp *interp;
X509 *cert;
{
Tcl_Obj *certPtr = Tcl_NewListObj( 0, NULL);
BIO *bio;
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;
unsigned char sha_hash0[SHA_DIGEST_LENGTH];
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;
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
X509_digest(cert, EVP_sha1(), sha_hash0, NULL);
for (shai=0;shai<SHA_DIGEST_LENGTH;shai++)
{
sha_hash[shai * 2]=shachars[(sha_hash0[shai] & 0xF0) >> 4];
sha_hash[shai * 2 + 1]=shachars[(sha_hash0[shai] & 0x0F)];
}
Tcl_ListObjAppendElement( interp, certPtr,
Tcl_NewStringObj( "sha1_hash", -1) );
Tcl_ListObjAppendElement( interp, certPtr,
Tcl_NewStringObj( sha_hash, SHA_DIGEST_LENGTH*2) );
#endif
Tcl_ListObjAppendElement( interp, certPtr,
Tcl_NewStringObj( "subject", -1) );
Tcl_ListObjAppendElement( interp, certPtr,
Tcl_NewStringObj( subject, -1) );
Tcl_ListObjAppendElement( interp, certPtr,
Tcl_NewStringObj( "issuer", -1) );
Tcl_ListObjAppendElement( interp, certPtr,
Tcl_NewStringObj( issuer, -1) );
Tcl_ListObjAppendElement( interp, certPtr,
Tcl_NewStringObj( "notBefore", -1) );
Tcl_ListObjAppendElement( interp, certPtr,
Tcl_NewStringObj( notBefore, -1) );
Tcl_ListObjAppendElement( interp, certPtr,
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_NewStringObj( serial, -1) );
return certPtr;
}
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