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