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/*
* $Source$
* $Author$
*
* Copyright 1990 by the Massachusetts Institute of Technology.
*
* For copying and distribution information, please see the file
* <krb5/mit-copyright.h>.
*
* krb5_unparse_name() routine
*/
#if !defined(lint) && !defined(SABER)
static char rcsid_unparse_c[] =
"$Id$";
#endif /* !lint & !SABER */
#include <krb5/copyright.h>
#include <krb5/krb5.h>
#include <krb5/ext-proto.h>
/*
converts the multi-part
principal format used in the protocols to a single-string representation
of the name.
the name returned is in allocated storage and should be freed by the caller
when finished.
Conventions: / is used to separate components; @ is used to separate
the realm from the rest of the name. If any component besides the realm has
a / or @ in it, an error is returned.
returns system errors XXX
*/
#define REALM_SEP '@'
#define COMPONENT_SEP '/'
#define REALM_SEP_STRING "@"
#define COMPONENT_SEP_STRING "/"
krb5_error_code
krb5_unparse_name(principal, name)
const krb5_principal principal;
register char **name;
{
register char *cp;
register int i;
int totalsize = 0;
if (!principal[0] || !principal[1])
return KRB5_PARSE_MALFORMED;
/* check for invalid elements of components; don't need to check
realm, which is first component */
for (i = 1; principal[i]; i++) {
for (cp = principal[i]->data;
cp < principal[i]->data + principal[i]->length; cp++)
if (*cp == REALM_SEP || *cp == COMPONENT_SEP)
return KRB5_PARSE_ILLCHAR;
totalsize += principal[i]->length + 1; /* + 1 for separator */
}
totalsize += principal[0]->length; /* no +1 since we need only n-1 seps
for n components */
*name = malloc(totalsize+1); /* room for null */
if (!*name)
return ENOMEM;
(void) bzero(*name, totalsize+1);
for (i = 1; principal[i]; i++) {
strncat(*name, principal[i]->data, principal[i]->length);
if (principal[i+1]) /* don't append sep to last elt */
strcat(*name, COMPONENT_SEP_STRING);
}
strcat(*name, REALM_SEP_STRING);
strncat(*name, principal[0]->data, principal[0]->length);
return 0;
}
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