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/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/* tests/asn.1/utility.c */
/*
* Copyright (C) 1994 by the Massachusetts Institute of Technology.
* All rights reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*/
#include "utility.h"
#include "krb5.h"
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
krb5int_access acc;
char hexchar (const unsigned int digit);
void *
ealloc(size_t size)
{
void *ptr = calloc(1, size);
if (ptr == NULL)
abort();
return ptr;
}
char *
estrdup(const char *str)
{
char *newstr = strdup(str);
if (newstr == NULL)
abort();
return newstr;
}
void
asn1_krb5_data_unparse(const krb5_data *code, char **s)
{
if (*s != NULL) free(*s);
if (code==NULL) {
*s = estrdup("<NULL>");
} else if (code->data == NULL || ((int) code->length) <= 0) {
*s = estrdup("<EMPTY>");
} else {
unsigned int i;
*s = ealloc(3 * code->length);
for (i = 0; i < code->length; i++) {
(*s)[3*i] = hexchar((unsigned char) (((code->data)[i]&0xF0)>>4));
(*s)[3*i+1] = hexchar((unsigned char) ((code->data)[i]&0x0F));
(*s)[3*i+2] = ' ';
}
(*s)[3*(code->length)-1] = '\0';
}
}
char
hexchar(const unsigned int digit)
{
if (digit<=9)
return '0'+digit;
else if (digit<=15)
return 'A'+digit-10;
else
return 'X';
}
void
krb5_data_parse(krb5_data *d, const char *s)
{
d->length = strlen(s);
d->data = ealloc(d->length);
memcpy(d->data, s, d->length);
}
asn1_error_code
krb5_data_hex_parse(krb5_data *d, const char *s)
{
int lo;
long v;
const char *cp;
char *dp;
char buf[2];
d->data = ealloc(strlen(s) / 2 + 1);
d->length = 0;
buf[1] = '\0';
for (lo = 0, dp = d->data, cp = s; *cp; cp++) {
if (*cp < 0)
return ASN1_PARSE_ERROR;
else if (isspace((unsigned char) *cp))
continue;
else if (isxdigit((unsigned char) *cp)) {
buf[0] = *cp;
v = strtol(buf, NULL, 16);
} else
return ASN1_PARSE_ERROR;
if (lo) {
*dp++ |= v;
lo = 0;
} else {
*dp = v << 4;
lo = 1;
}
}
d->length = dp - d->data;
return 0;
}
#if 0
void
asn1buf_print(const asn1buf *buf)
{
asn1buf bufcopy;
char *s=NULL;
int length;
int i;
bufcopy.base = bufcopy.next = buf->next;
bufcopy.bound = buf->bound;
length = asn1buf_len(&bufcopy);
s = calloc(3*length, sizeof(char));
if (s == NULL) return;
for (i=0; i<length; i++) {
s[3*i] = hexchar(((bufcopy.base)[i]&0xF0)>>4);
s[3*i+1] = hexchar((bufcopy.base)[i]&0x0F);
s[3*i+2] = ' ';
}
s[3*length-1] = '\0';
printf("%s\n",s);
free(s);
}
#endif
void
init_access(const char *progname)
{
krb5_error_code ret;
ret = krb5int_accessor(&acc, KRB5INT_ACCESS_VERSION);
if (ret) {
com_err(progname, ret, "while initializing accessor");
exit(1);
}
}
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