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/*
* This fcrypt/crypt speed testing program
* is derived from one floating around in
* the net. It's distributed along with
* UFC-crypt but is not covered by any
* licence.
*
* @(#)speeds.c 1.11 20 Aug 1996
*/
#include <signal.h>
#include <stdio.h>
#ifndef SIGVTALRM
/*
* patch from chip@chinacat.unicom.com (Chip Rosenthal):
* you may enable it if your system does not include
* a setitimer() function. You'll have to ensure the
* existence an environment variable: HZ giving how many
* ticks goes per second.
* If not existing in your default environment 50, 60
* or even 100 may be the right value. Perhaps you should
* then use 'time ./ufc 10000' instead of guessing.
*/
#define NO_ITIMER
#endif
#ifdef NO_ITIMER
#include <sys/types.h>
#include <sys/times.h>
#else
#include <sys/time.h>
#endif
static int cnt;
#ifdef NO_ITIMER
char *hz;
struct tms tstart, tfinish;
#endif
#define ITIME 10 /* Number of seconds to run test. */
char *crypt(), *fcrypt();
void
Stop (void)
{
double elapsed;
#ifdef NO_ITIMER
(void) times(&tfinish);
elapsed = ((tfinish.tms_utime + tfinish.tms_stime) -
(tstart.tms_utime + tstart.tms_stime)) / atoi(hz);
printf("elapsed time = %d sec, CPU time = %f sec\n", ITIME, elapsed);
#else
elapsed = ITIME;
#endif
printf ("Did %f %s()s per second.\n", ((float) cnt) / elapsed,
#if defined(FCRYPT)
"fcrypt"
#else
"crypt"
#endif
);
exit (0);
}
/*
* Silly rewrite of 'bzero'. I do so
* because some machines don't have
* bzero and some don't have memset.
*/
static void clearmem(start, cnt)
char *start;
int cnt;
{ while(cnt--)
*start++ = '\0';
}
main (void)
{
char *s;
#ifdef NO_ITIMER
extern char *getenv();
#else
struct itimerval itv;
#endif
#ifdef NO_ITIMER
if ((hz = getenv("HZ")) == NULL) {
fprintf(stderr, "HZ environment parameter undefined\n");
exit(1);
}
#endif
#ifdef FCRYPT
printf("\n");
printf("Warning: this version of the speed program may run slower when\n");
printf("benchmarking UFC-crypt than previous versions. This is because it\n");
printf("stresses the CPU hardware cache in order to get benchmark figures\n");
printf("that corresponds closer to the performance that can be expected in\n");
printf("a password cracker.\n\n");
#endif
printf ("Running %s for %d seconds of virtual time ...\n",
#ifdef FCRYPT
"UFC-crypt",
#else
"crypt(libc)",
#endif
ITIME);
#ifdef FCRYPT
init_des ();
#endif
#ifdef NO_ITIMER
signal(SIGALRM, Stop);
switch (fork()) {
case -1:
perror("fork failed");
exit(1);
case 0:
sleep(10);
kill(getppid(), SIGALRM);
exit(0);
default:
(void) times(&tstart);
}
#else
clearmem ((char*)&itv, (int)sizeof (itv));
signal (SIGVTALRM, Stop);
itv.it_value.tv_sec = ITIME;
itv.it_value.tv_usec = 0;
setitimer (ITIMER_VIRTUAL, &itv, NULL);
#endif
s = "fredred";
for (cnt = 0;; cnt++)
{
#ifdef FCRYPT
s = fcrypt (s, "eek");
#else
s = crypt (s, "eek");
#endif
}
}
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