Function sys_ftruncate

components/lwp/lwp_syscall.c:10247–10254

* @brief Truncate a file to a specified length. * * This function resizes the file associated with the given file descriptor `fd` to the specified length. * If the current size of the file is greater than the specified length, the file is truncated. If the file is smaller, * it is extended, and the new space is initialized to zero. * * @param[in] fd The file descriptor referring to the

 * @note The file descriptor `fd` must be opened with write permissions for this operation to succeed.
 */
sysret_t sys_ftruncate(int fd, size_t length)
{
    int ret;

    ret = ftruncate(fd, length);

    return (ret < 0 ? GET_ERRNO() : ret);
}

/**
 * @brief Set file access and modification times.