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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: dest_tkt.c,v 4.9 89/10/02 16:23:07 jtkohl Exp $
* $FreeBSD$
*/
#if 0
#ifndef lint
static char *rcsid =
"$FreeBSD$";
#endif /* lint */
#endif
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <krb.h>
#include <sys/file.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef TKT_SHMEM
#include <sys/param.h>
#endif
#include <errno.h>
/*
* dest_tkt() is used to destroy the ticket store upon logout.
* If the ticket file does not exist, dest_tkt() returns RET_TKFIL.
* Otherwise the function returns RET_OK on success, KFAILURE on
* failure.
*
* The ticket file (TKT_FILE) is defined in "krb.h".
*/
int
dest_tkt()
{
char *file = TKT_FILE;
int i,fd;
extern int errno;
struct stat statb;
char buf[BUFSIZ];
#ifdef TKT_SHMEM
char shmidname[MAXPATHLEN];
#endif /* TKT_SHMEM */
errno = 0;
if (lstat(file,&statb) < 0)
goto out;
if (!(statb.st_mode & S_IFREG)
#ifdef notdef
|| statb.st_mode & 077
#endif
)
goto out;
if ((fd = open(file, O_RDWR, 0)) < 0)
goto out;
bzero(buf, BUFSIZ);
for (i = 0; i < statb.st_size; i += BUFSIZ)
if (write(fd, buf, BUFSIZ) != BUFSIZ) {
(void) fsync(fd);
(void) close(fd);
goto out;
}
(void) fsync(fd);
(void) close(fd);
(void) unlink(file);
out:
if (errno == ENOENT) return RET_TKFIL;
else if (errno != 0) return KFAILURE;
#ifdef TKT_SHMEM
/*
* handle the shared memory case
*/
(void) strcpy(shmidname, file);
(void) strcat(shmidname, ".shm");
if ((i = krb_shm_dest(shmidname)) != KSUCCESS)
return(i);
#endif /* TKT_SHMEM */
return(KSUCCESS);
}
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