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