Show correct message ("Remote end closed connection") when we get EOF

on a socket.

I also added a wrapper function around strerror() for dgets_errno, since
we did the same thing in a few places.  This all needs to be cleaned up
a little - the -1 value we use could in theory clash with an actual
errno error number.


git-svn-id: svn://svn.code.sf.net/p/bitchx/code/trunk@104 13b04d17-f746-0410-82c6-800466cd88b0

include/newio.h

@@ -12,6 +12,7 @@
 
 extern 	int 	dgets_errno;
 
+	const char *dgets_strerror(int);
 	int 	BX_dgets 			(char *, int, int, int, void *);
 	int 	new_select 		(fd_set *, fd_set *, struct timeval *);
 	int	BX_new_open		(int);