jehanne/sys/src/cmd/auth/netkey.c

50 lines
763 B
C

#include <u.h>
#include <lib9.h>
#include <authsrv.h>
#include <bio.h>
#include "authcmdlib.h"
void
usage(void)
{
fprint(2, "usage: netkey\n");
exits("usage");
}
void
main(int argc, char *argv[])
{
char buf[32], pass[32], key[DESKEYLEN];
char *s;
int n;
ARGBEGIN{
default:
usage();
}ARGEND
if(argc)
usage();
s = getenv(ENV_SERVICE);
if(s && strcmp(s, "cpu") == 0){
fprint(2, "netkey must not be run on the cpu server\n");
exits("boofhead");
}
readln("Password: ", pass, sizeof pass, 1);
passtodeskey(key, pass);
for(;;){
print("challenge: ");
n = read(0, buf, sizeof buf - 1);
if(n <= 0)
exits(0);
buf[n] = '\0';
n = strtol(buf, 0, 10);
sprint(buf, "%d", n);
netcrypt(key, buf);
print("response: %s\n", buf);
}
}