Function read

components/dfs/dfs_v2/src/dfs_posix.c:325–354

_READ_WRITE_RETURN_TYPE _EXFUN(read, (int fd, void *buf, size_t len))
#else
ssize_t read(int fd, void *buf, size_t len)
#endif
{
    ssize_t result;
    struct dfs_file *file;

    if (buf == NULL)
    {
        rt_set_errno(-EBADF);
        return -1;
    }

    file = fd_get(fd);
    if (file == NULL)
    {
        rt_set_errno(-EBADF);

        return -1;
    }

    result = dfs_file_read(file, buf, len);
    if (result < 0)
    {
        rt_set_errno(result);

        return -1;
    }

    return result;
}
RTM_EXPORT(read);

/**