Module Name:	src
Committed By:	bouyer
Date:		Tue Apr 13 20:17:48 UTC 1999

Modified Files:
	src/distrib/utils/sysinst: defs.h disks.c install.c msg.mi.eng
	    msg.mi.fr net.c target.c upgrade.c util.c
Log Message:
Main change: add a cleanup_dist() function in util.c which will do the needed
cleanups before extracting a set. Should'nt do anything for an install,
as the filesystem shouldn't contain files that need to be removed.
cleanup_dist() is called before extract_file() for each set (the set name
is passed as parameter). It will open a file /dist/<set name>_obsolete
if it exists. This file should contain a list of files (absolutes
pathnames) that needs to be removed. cleanup_dist() will lstat() each file
to determine if it's there and if it's a directory or not.
It will then unlink() entries that are not directories and then rmdir()
directories. If a directory is not empty (it should now if the list of files
is correct) it will be renamed to <directory.old> and the user will be warned.

Other changes:
- move prototype of target_prefix() in defs.h, don't maintain a copy
of it in each file.
- in install.c, after MSG_disksetupdone, do a wclear(stdscr) (display was
clobbered after it).
- kill MSG_openmsgbuf, it's not used anywhere
- after MSG_disksetupdone in upgrade, don't call MENU_ok, do it the
same way as in install.
- add wclear(stdscr);/wrefresh(stdscr); before calling MENU_distset (another
display problem ...)
- While I'm there, move ask_verbose_dist() before MENU_distmedium. This way,
if all go well the user can go away one ftp starts and come back once
sets are extracted.