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/*
* Copyright (c) 2018 Yubico AB. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
*/
#include <fido.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "../openbsd-compat/openbsd-compat.h"
#include "extern.h"
int
pin_set(char *path)
{
fido_dev_t *dev = NULL;
char prompt[1024];
char pin1[1024];
char pin2[1024];
int r;
int status = 1;
if (path == NULL)
usage();
dev = open_dev(path);
r = snprintf(prompt, sizeof(prompt), "Enter new PIN for %s: ", path);
if (r < 0 || (size_t)r >= sizeof(prompt)) {
warnx("snprintf");
goto out;
}
if (!readpassphrase(prompt, pin1, sizeof(pin1), RPP_ECHO_OFF)) {
warnx("readpassphrase");
goto out;
}
r = snprintf(prompt, sizeof(prompt), "Enter the same PIN again: ");
if (r < 0 || (size_t)r >= sizeof(prompt)) {
warnx("snprintf");
goto out;
}
if (!readpassphrase(prompt, pin2, sizeof(pin2), RPP_ECHO_OFF)) {
warnx("readpassphrase");
goto out;
}
if (strcmp(pin1, pin2) != 0) {
fprintf(stderr, "PINs do not match. Try again.\n");
goto out;
}
if ((r = fido_dev_set_pin(dev, pin1, NULL)) != FIDO_OK) {
warnx("fido_dev_set_pin: %s", fido_strerr(r));
goto out;
}
fido_dev_close(dev);
fido_dev_free(&dev);
status = 0;
out:
explicit_bzero(pin1, sizeof(pin1));
explicit_bzero(pin2, sizeof(pin2));
exit(status);
}
int
pin_change(char *path)
{
fido_dev_t *dev = NULL;
char prompt[1024];
char pin0[1024];
char pin1[1024];
char pin2[1024];
int r;
int status = 1;
if (path == NULL)
usage();
dev = open_dev(path);
r = snprintf(prompt, sizeof(prompt), "Enter current PIN for %s: ", path);
if (r < 0 || (size_t)r >= sizeof(prompt)) {
warnx("snprintf");
goto out;
}
if (!readpassphrase(prompt, pin0, sizeof(pin0), RPP_ECHO_OFF)) {
warnx("readpassphrase");
goto out;
}
r = snprintf(prompt, sizeof(prompt), "Enter new PIN for %s: ", path);
if (r < 0 || (size_t)r >= sizeof(prompt)) {
warnx("snprintf");
goto out;
}
if (!readpassphrase(prompt, pin1, sizeof(pin1), RPP_ECHO_OFF)) {
warnx("readpassphrase");
goto out;
}
r = snprintf(prompt, sizeof(prompt), "Enter the same PIN again: ");
if (r < 0 || (size_t)r >= sizeof(prompt)) {
warnx("snprintf");
goto out;
}
if (!readpassphrase(prompt, pin2, sizeof(pin2), RPP_ECHO_OFF)) {
warnx("readpassphrase");
goto out;
}
if (strcmp(pin1, pin2) != 0) {
fprintf(stderr, "PINs do not match. Try again.\n");
goto out;
}
if ((r = fido_dev_set_pin(dev, pin1, pin0)) != FIDO_OK) {
warnx("fido_dev_set_pin: %s", fido_strerr(r));
goto out;
}
fido_dev_close(dev);
fido_dev_free(&dev);
status = 0;
out:
explicit_bzero(pin0, sizeof(pin0));
explicit_bzero(pin1, sizeof(pin1));
explicit_bzero(pin2, sizeof(pin2));
exit(status);
}
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