sgx_ustdc/fd.c

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License..

#define _LARGEFILE64_SOURCE
#define _GNU_SOURCE
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/uio.h>
#include <sys/sendfile.h>
#include <sys/eventfd.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <time.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>

ssize_t u_read_ocall(int *error, int fd, void *buf, size_t count)
{
    ssize_t ret = read(fd, buf, count);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

ssize_t u_pread64_ocall(int *error, int fd, void *buf, size_t count, off64_t offset)
{
    ssize_t ret = pread64(fd, buf, count, offset);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

ssize_t u_readv_ocall(int *error, int fd, const struct iovec *iov, int iovcnt)
{
    ssize_t ret = readv(fd, iov, iovcnt);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

ssize_t u_preadv64_ocall(int *error, int fd, const struct iovec *iov, int iovcnt, off64_t offset)
{
    ssize_t ret = preadv64(fd, iov, iovcnt, offset);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

ssize_t u_write_ocall(int *error, int fd, const void *buf, size_t count)
{
    ssize_t ret = write(fd, buf, count);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

ssize_t u_pwrite64_ocall(int *error, int fd, const void *buf, size_t count, off64_t offset)
{
    ssize_t ret = pwrite64(fd, buf, count, offset);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

ssize_t u_writev_ocall(int *error, int fd, const struct iovec *iov, int iovcnt)
{
    ssize_t ret = writev(fd, iov, iovcnt);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

ssize_t u_pwritev64_ocall(int *error, int fd, const struct iovec *iov, int iovcnt, off64_t offset)
{
    ssize_t ret = pwritev64(fd, iov, iovcnt, offset);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

ssize_t u_sendfile_ocall(int *error, int out_fd, int in_fd, off_t *offset, size_t count)
{
    ssize_t ret = sendfile(out_fd, in_fd, offset, count);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

ssize_t u_copy_file_range_ocall(int *error, int fd_in, loff_t *off_in, int fd_out, loff_t *off_out, size_t len, unsigned int flags)
{
    ssize_t ret = syscall(__NR_copy_file_range, fd_in, off_in, fd_out, off_out, len, flags);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

ssize_t u_splice_ocall(int *error, int fd_in, loff_t *off_in, int fd_out, loff_t *off_out, size_t len, unsigned int flags)
{
    ssize_t ret = splice(fd_in, off_in, fd_out, off_out, len, flags);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

int u_fcntl_arg0_ocall(int *error, int fd, int cmd)
{
    int ret = fcntl(fd, cmd);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

int u_fcntl_arg1_ocall(int *error, int fd, int cmd, int arg)
{
    int ret = fcntl(fd, cmd, arg);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

int u_ioctl_arg0_ocall(int *error, int fd, int request)
{
    int ret = ioctl(fd, (unsigned long)request);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

int u_ioctl_arg1_ocall(int *error, int fd, int request, int *arg)
{
    int ret = ioctl(fd, (unsigned long)request, arg);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

int u_close_ocall(int *error, int fd)
{
    int ret = close(fd);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

int u_isatty_ocall(int *error, int fd)
{
    int ret = isatty(fd);
    if (error) {
        *error = ret == 0 ? errno : 0;
    }
    return ret;
}

int u_dup_ocall(int *error, int oldfd)
{
    int ret = dup(oldfd);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

int u_eventfd_ocall(int *error, unsigned int initval, int flags)
{
    int ret = eventfd(initval, flags);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}

int u_futimens_ocall(int *error, int fd, const struct timespec times[2])
{
    int ret = futimens(fd, times);
    if (error) {
        *error = ret == -1 ? errno : 0;
    }
    return ret;
}