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/*-
* Copyright (c) 2000 The Regents of the University of Michigan.
* All rights reserved.
*
* Copyright (c) 2000 Dug Song <dugsong@UMICH.EDU>.
* All rights reserved, all wrongs reversed.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* $FreeBSD$ */
#include <gssapi/gssapi.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "utils.h"
OM_uint32
gss_oid_to_str(OM_uint32 *minor_status, gss_OID oid, gss_buffer_t oid_str)
{
char numstr[128];
unsigned long number;
int numshift;
size_t string_length;
size_t i;
unsigned char *cp;
char *bp;
*minor_status = 0;
_gss_buffer_zero(oid_str);
if (oid == GSS_C_NULL_OID)
return (GSS_S_FAILURE);
/* Decoded according to krb5/gssapi_krb5.c */
/* First determine the size of the string */
string_length = 0;
number = 0;
numshift = 0;
cp = (unsigned char *) oid->elements;
number = (unsigned long) cp[0];
sprintf(numstr, "%ld ", number/40);
string_length += strlen(numstr);
sprintf(numstr, "%ld ", number%40);
string_length += strlen(numstr);
for (i=1; i<oid->length; i++) {
if ( (size_t) (numshift+7) < (sizeof(unsigned long)*8)) {
number = (number << 7) | (cp[i] & 0x7f);
numshift += 7;
}
else {
*minor_status = 0;
return(GSS_S_FAILURE);
}
if ((cp[i] & 0x80) == 0) {
sprintf(numstr, "%ld ", number);
string_length += strlen(numstr);
number = 0;
numshift = 0;
}
}
/*
* If we get here, we've calculated the length of "n n n ... n ".
* Add 4 here for "{ " and "}\0".
*/
string_length += 4;
if ((bp = (char *) malloc(string_length))) {
strcpy(bp, "{ ");
number = (unsigned long) cp[0];
sprintf(numstr, "%ld ", number/40);
strcat(bp, numstr);
sprintf(numstr, "%ld ", number%40);
strcat(bp, numstr);
number = 0;
cp = (unsigned char *) oid->elements;
for (i=1; i<oid->length; i++) {
number = (number << 7) | (cp[i] & 0x7f);
if ((cp[i] & 0x80) == 0) {
sprintf(numstr, "%ld ", number);
strcat(bp, numstr);
number = 0;
}
}
strcat(bp, "}");
oid_str->length = strlen(bp)+1;
oid_str->value = (void *) bp;
*minor_status = 0;
return(GSS_S_COMPLETE);
}
*minor_status = ENOMEM;
return(GSS_S_FAILURE);
}
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