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#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <signal.h>
#include <stdio.h>
int keep_going, count, seconds;
struct rusage prior, now;
void
finish()
{
keep_going = 0;
}
main(int argc, char *argv[])
{
struct itimerval itv;
u_long msecs, key1[8], key2[8];
char *k1, *k2;
char *token, deftok[] = "eek";
if (argc < 2 || sscanf(argv[1], "%d", &seconds) != 1)
seconds = 20;
if (argc < 3) {
token = &deftok[0];
} else {
token = argv[2];
}
printf ("Running crypt for %d seconds of vtime\n", seconds);
bzero(&itv, sizeof (itv));
signal (SIGVTALRM, finish);
itv.it_value.tv_sec = seconds;
itv.it_value.tv_usec = 0;
setitimer(ITIMER_VIRTUAL, &itv, NULL);
keep_going = 1;
k1 = (char *) key1;
k2 = (char *) key2;
strcpy(k1, "fredfredfredfredfred");
strcpy(k2, "joejoejoejoejoejoejo");
printf("Dry run (to verify seed token):\n\tcrypt(\"test\", \"%s\")\n",
token);
printf("\t=> \"%s\"\nTesting...", crypt("test", token));
fflush(stdout);
if (getrusage(0, &prior) < 0) {
perror("getrusage");
exit(1);
}
for (count = 0; keep_going; count++) {
crypt((count & 1) ? k1 : k2, token);
}
if (getrusage(0, &now) < 0) {
perror("getrusage");
exit(1);
}
msecs = (now.ru_utime.tv_sec - prior.ru_utime.tv_sec) * 1000
+ (now.ru_utime.tv_usec - prior.ru_utime.tv_usec) / 1000;
printf ("\tDid %d crypt()s per second.\n", 1000 * count / msecs);
exit(0);
}
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