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 * @return      EOK on success or EBADF if fd is an invalid file
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 * @return      EOK on success or EBADF if fd is an invalid file
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 *          descriptor.
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 *          descriptor.
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 */
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 */
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int vfs_fd_free(int fd)
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int vfs_fd_free(int fd)
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{
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{
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    if ((fd >= MAX_OPEN_FILES) || (files[fd] == NULL))
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    if ((fd < 0) || (fd >= MAX_OPEN_FILES) || (files[fd] == NULL))
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        return EBADF;
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        return EBADF;
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    vfs_file_delref(files[fd]);
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    vfs_file_delref(files[fd]);
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    files[fd] = NULL;
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    files[fd] = NULL;
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    return EOK;
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    return EOK;
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}
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}
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 *
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 *
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 * @return      VFS file structure corresponding to fd.
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 * @return      VFS file structure corresponding to fd.
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 */
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 */
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vfs_file_t *vfs_file_get(int fd)
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vfs_file_t *vfs_file_get(int fd)
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{
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{
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    if (fd < MAX_OPEN_FILES)
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    if ((fd >= 0) && (fd < MAX_OPEN_FILES))
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        return files[fd];
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        return files[fd];
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    return NULL;
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    return NULL;
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}
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}
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/**
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/**