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/*
* Copyright (c) 2020 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.
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <sys/stat.h>
#include <errno.h>
#include <fcntl.h>
#include <poll.h>
#include <unistd.h>
#include "fido.h"
#ifdef __NetBSD__
#define ppoll pollts
#endif
int
fido_hid_unix_open(const char *path)
{
int fd;
struct stat st;
if ((fd = open(path, O_RDWR)) == -1) {
if (errno != ENOENT && errno != ENXIO)
fido_log_error(errno, "%s: open %s", __func__, path);
return (-1);
}
if (fstat(fd, &st) == -1) {
fido_log_error(errno, "%s: fstat %s", __func__, path);
if (close(fd) == -1)
fido_log_error(errno, "%s: close", __func__);
return (-1);
}
if (S_ISCHR(st.st_mode) == 0) {
fido_log_debug("%s: S_ISCHR %s", __func__, path);
if (close(fd) == -1)
fido_log_error(errno, "%s: close", __func__);
return (-1);
}
return (fd);
}
int
fido_hid_unix_wait(int fd, int ms, const fido_sigset_t *sigmask)
{
struct timespec ts;
struct pollfd pfd;
int r;
memset(&pfd, 0, sizeof(pfd));
pfd.events = POLLIN;
pfd.fd = fd;
#ifdef FIDO_FUZZ
return (0);
#endif
if (ms > -1) {
ts.tv_sec = ms / 1000;
ts.tv_nsec = (ms % 1000) * 1000000;
}
if ((r = ppoll(&pfd, 1, ms > -1 ? &ts : NULL, sigmask)) < 1) {
if (r == -1)
fido_log_error(errno, "%s: ppoll", __func__);
return (-1);
}
return (0);
}
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