@c Get the name of the actual host
This function gets the name of the host that runs the program. The result of the function is positive if no TCP/IP protocol is available on the machine or some error occured.
In case of success the return value is zero.
int file_gethostname(char *pszBuffer,
The first argument should point to the character buffer, and the second
argument should hold the size of the buffer in bytes.