ed289f734b
1. We've got some ancient code here that's trying to open stderr (fd 2) itself, in case it cannot write there for strange reason. POSIX defines the three standard streams (and associated fd's) to be available on program startup (when main() is reached). One needs a sledgehammer for breaking a system so much that this doesn't work anymore - even calling a program directly from /etc/inittab does provide them. 2. The current implementation is not POSIX conformant - it should use freopen(), and it leaks FILE structure. 3. stderr is set to buffered mode, quite the opposite of POSIX - it states stderr shall NOT be buffered. Simple and obvious reason: not risking vital error information getting lost. 4. Placing The logfile in /usr/adm - an ancient, pre-FHS, directory that rarely exists on modern systems. That's even hardcoded, instead of derived from build-time given installation pathes. Conculusio: obsolete and broken, thus removing it. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
X Server
The X server accepts requests from client applications to create windows, which are (normally rectangular) "virtual screens" that the client program can draw into.
Windows are then composed on the actual screen by the X server (or by a separate composite manager) as directed by the window manager, which usually communicates with the user via graphical controls such as buttons and draggable titlebars and borders.
For a comprehensive overview of X Server and X Window System, consult the following article: https://en.wikipedia.org/wiki/X_server
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