static void
authuser(char *myname, char *login_style, int persist)
{
char *challenge = NULL, *response, rbuf[1024], cbuf[128];
auth_session_t *as;
int fd = -1;
if (persist)
fd = open("/dev/tty", O_RDWR);
if (fd != -1) {
if (ioctl(fd, TIOCCHKVERAUTH) == 0)
goto good;
}
if (!(as = auth_userchallenge(myname, login_style, "auth-doas",
&challenge)))
errx(1, "Authorization failed");
if (!challenge) {
char host[HOST_NAME_MAX + 1];
if (gethostname(host, sizeof(host)))
snprintf(host, sizeof(host), "?");
snprintf(cbuf, sizeof(cbuf),
"\rdoas (%.32s@%.32s) password: "******"tty required for %s", myname);
errx(1, "a tty is required");
}
if (!auth_userresponse(as, response, 0)) {
syslog(LOG_AUTHPRIV | LOG_NOTICE,
"failed auth for %s", myname);
errc(1, EPERM, NULL);
}
explicit_bzero(rbuf, sizeof(rbuf));
good:
if (fd != -1) {
int secs = 5 * 60;
ioctl(fd, TIOCSETVERAUTH, &secs);
close(fd);
}
}
int
bsdauth_query(void *ctx, char **name, char **infotxt,
u_int *numprompts, char ***prompts, u_int **echo_on)
{
Authctxt *authctxt = ctx;
char *challenge = NULL;
*infotxt = NULL;
*numprompts = 0;
*prompts = NULL;
*echo_on = NULL;
if (authctxt->as != NULL) {
debug2("bsdauth_query: try reuse session");
challenge = auth_getitem(authctxt->as, AUTHV_CHALLENGE);
if (challenge == NULL) {
auth_close(authctxt->as);
authctxt->as = NULL;
}
}
if (challenge == NULL) {
debug2("bsdauth_query: new bsd auth session");
debug3("bsdauth_query: style %s",
authctxt->style ? authctxt->style : "<default>");
authctxt->as = auth_userchallenge(authctxt->user,
authctxt->style, "auth-ssh", &challenge);
if (authctxt->as == NULL)
challenge = NULL;
debug2("bsdauth_query: <%s>", challenge ? challenge : "empty");
}
if (challenge == NULL)
return -1;
*name = xstrdup("");
*infotxt = xstrdup("");
*numprompts = 1;
*prompts = xcalloc(*numprompts, sizeof(char *));
*echo_on = xcalloc(*numprompts, sizeof(u_int));
(*prompts)[0] = xstrdup(challenge);
return 0;
}
int
authhelp_go (void)
{
auth_session_t *as;
char *chal = NULL;
char *pass;
char *p;
int res;
as = auth_userchallenge (user, NULL, NULL, &chal);
pass = authhelp_input (chal ? chal : "Password: ", 0);
if (!as)
return -1;
res = auth_userresponse (as, pass, 0);
xfree (pass);
if ((p = strchr (user, ':')))
*p = '\0';
if (res)
authhelp_approve (user, NULL);
return res ? 0 : -1;
}