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/*
* Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
* of Technology.
* For copying and distribution information, please see the file
* <Copyright.MIT>.
*
* from: tkt_string.c,v 4.6 89/01/05 12:31:51 raeburn Exp $
* $FreeBSD$
*/
#if 0
#ifndef lint
static char *rcsid =
"$FreeBSD$";
#endif /* lint */
#endif
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <krb.h>
#include <string.h>
#include <sys/param.h>
/*
* This routine is used to generate the name of the file that holds
* the user's cache of server tickets and associated session keys.
*
* If it is set, krb_ticket_string contains the ticket file name.
* Otherwise, the filename is constructed as follows:
*
* If it is set, the environment variable "KRBTKFILE" will be used as
* the ticket file name. Otherwise TKT_ROOT (defined in "krb.h") and
* the user's uid are concatenated to produce the ticket file name
* (e.g., "/tmp/tkt123"). A pointer to the string containing the ticket
* file name is returned.
*/
static char krb_ticket_string[MAXPATHLEN] = "";
char *tkt_string()
{
char *env;
uid_t getuid();
if (!*krb_ticket_string) {
if ((env = getenv("KRBTKFILE"))) {
(void) strncpy(krb_ticket_string, env,
sizeof(krb_ticket_string)-1);
krb_ticket_string[sizeof(krb_ticket_string)-1] = '\0';
} else {
/* 32 bits of signed integer will always fit in 11 characters
(including the sign), so no need to worry about overflow */
(void) sprintf(krb_ticket_string, "%s%d",TKT_ROOT,getuid());
}
}
return krb_ticket_string;
}
/*
* This routine is used to set the name of the file that holds the user's
* cache of server tickets and associated session keys.
*
* The value passed in is copied into local storage.
*
* NOTE: This routine should be called during initialization, before other
* Kerberos routines are called; otherwise tkt_string() above may be called
* and return an undesired ticket file name until this routine is called.
*/
void
krb_set_tkt_string(val)
char *val;
{
(void) strncpy(krb_ticket_string, val, sizeof(krb_ticket_string)-1);
krb_ticket_string[sizeof(krb_ticket_string)-1] = '\0';
return;
}
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