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/*
* test/threads/t_rcache.c
*
* Copyright (C) 2006 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 <stdio.h>
#include <com_err.h>
#include "k5-int.h"
#include <krb5.h>
#include <pthread.h>
krb5_context ctx;
krb5_rcache rcache;
krb5_data piece = { .data = "hello", .length = 5 };
time_t end_time;
const char *prog;
struct tinfo {
time_t now;
unsigned long my_ctime;
unsigned int my_cusec;
unsigned int total;
int idx;
};
#undef INIT_ONCE
static void try_one (struct tinfo *t)
{
krb5_donot_replay r;
krb5_error_code err;
char buf[100], buf2[100];
krb5_rcache my_rcache;
snprintf(buf, sizeof(buf), "host/all-in-one.mit.edu/%p@ATHENA.MIT.EDU",
buf);
r.server = buf;
r.client = (t->my_cusec & 7) + "abcdefgh@ATHENA.MIT.EDU";
r.msghash = NULL;
if (t->now != t->my_ctime) {
if (t->my_ctime != 0) {
snprintf(buf2, sizeof(buf2), "%3d: %ld %5d\n", t->idx,
t->my_ctime, t->my_cusec);
printf("%s", buf2);
}
t->my_ctime = t->now;
t->my_cusec = 1;
} else
t->my_cusec++;
r.ctime = t->my_ctime;
r.cusec = t->my_cusec;
#ifndef INIT_ONCE
err = krb5_get_server_rcache(ctx, &piece, &my_rcache);
if (err) {
const char *msg = krb5_get_error_message(ctx, err);
fprintf(stderr, "%s: %s while initializing replay cache\n", prog, msg);
krb5_free_error_message(ctx, msg);
exit(1);
}
#else
my_rcache = rcache;
#endif
err = krb5_rc_store(ctx, my_rcache, &r);
if (err) {
com_err(prog, err, "storing in replay cache");
exit(1);
}
#ifndef INIT_ONCE
krb5_rc_close(ctx, my_rcache);
#endif
}
static void *run_a_loop (void *x)
{
struct tinfo t = { 0 };
/* int chr = "ABCDEFGHIJKLMNOPQRSTUVWXYZ_"[(*(int*)x) % 27]; */
t.now = time(0);
t.idx = *(int *)x;
while (t.now != time(0))
;
t.now = time(0);
while (t.now < end_time) {
t.now = time(0);
try_one(&t);
t.total++;
/* printf("%c", chr); */
fflush(stdout);
}
printf("thread %p total %u\n", &t, t.total);
*(int*)x = t.total;
return 0;
}
int main (int argc, char *argv[])
{
int n;
krb5_error_code err;
int interval = 20 /* 5 * 60 */;
prog = argv[0];
n = 2;
err = krb5_init_context(&ctx);
if (err) {
com_err(prog, err, "initializing context");
return 1;
}
/*
* For consistency, run the tests without an existing replay
* cache. Since there isn't a way to ask the library for the
* pathname that would be used for the rcache, we create an rcache
* object and then destroy it.
*/
err = krb5_get_server_rcache(ctx, &piece, &rcache);
if (err) {
const char *msg = krb5_get_error_message(ctx, err);
fprintf(stderr, "%s: %s while initializing replay cache\n", prog, msg);
krb5_free_error_message(ctx, msg);
return 1;
}
err = krb5_rc_destroy(ctx, rcache);
if (err) {
const char *msg = krb5_get_error_message(ctx, err);
fprintf(stderr, "%s: %s while destroying old replay cache\n",
prog, msg);
krb5_free_error_message(ctx, msg);
return 1;
}
rcache = NULL;
#ifdef INIT_ONCE
err = krb5_get_server_rcache(ctx, &piece, &rcache);
if (err) {
const char *msg = krb5_get_error_message(ctx, err);
fprintf(stderr, "%s: %s while initializing new replay cache\n",
prog, msg);
krb5_free_error_message(ctx, msg);
return 1;
}
#endif
end_time = time(0) + interval;
#undef DIRECT
#ifdef DIRECT
{
int zero = 0;
run_a_loop(&zero);
}
#else
{
int i, *ip;
ip = malloc(sizeof(int) * n);
if (ip == 0 && n > 0) {
perror("malloc");
exit(1);
}
for (i = 0; i < n; i++)
ip[i] = i;
for (i = 0; i < n; i++) {
pthread_t new_thread;
int perr;
perr = pthread_create(&new_thread, 0, run_a_loop, &ip[i]);
if (perr) {
errno = perr;
perror("pthread_create");
exit(1);
}
}
while (time(0) < end_time + 1)
sleep(1);
for (i = 0; i < n; i++)
printf("thread %d total %5d\n", i, ip[i]);
free(ip);
}
#endif
#ifdef INIT_ONCE
krb5_rc_close(ctx, rcache);
#endif
krb5_free_context(ctx);
return 0;
}
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