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54 lines
1.6 KiB
Bash
54 lines
1.6 KiB
Bash
#!/bin/sh
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# Wrapper script for nevernoid to allow read-only shared data
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# files, plus writable per-user highscore/settings in ~/nevernoid
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# Author: B. Watson (urchlay@slackware.uk)
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# How lame is this? The game opens the map files O_RDWR (read/write
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# access), even though it never attempts to write to them! Also, it
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# doesn't use fopen() to do this (I tried a LD_PRELOAD to fix it).
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# Because it's closed-source, I can't fix it, and because of this silliness,
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# the user directory needs to contain a *copy* of all the map files
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# rather than just symlinks to them. Fortunately they're small files.
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# A proper fix would involve either:
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# - The original author fixing the source and recompiling, or
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# - Someone well-versed in Linux-flavored 80x86 assembly to disassemble
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# the code, find the offending O_RDWR byte, and replace with the value
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# of O_RDONLY. This assumes that the call to open() is a separate call
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# than the one that opens the highscores.dat/options.dat files for
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# writing! This is complicated by the fact that the code was compiled
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# with FreePascal instead of being written in the more familiar C...
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GAME=nevernoid
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USERDIR=~/.$GAME
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BIN=/usr/libexec/$GAME
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SHARE=/usr/share/$GAME
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LINKDIRS="fonts music sounds sprites"
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COPYDIRS="maps"
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set -e
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if [ ! -e $USERDIR ]; then
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mkdir $USERDIR
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echo "$0: Created $USERDIR/"
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fi
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cd $USERDIR
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for dir in $LINKDIRS; do
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if [ ! -e $dir ]; then
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echo "$0: linking $SHARE/$dir/ to $USERDIR/$dir/"
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ln -s $SHARE/$dir $dir
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fi
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done
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for dir in $COPYDIRS; do
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if [ ! -e $dir ]; then
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echo "$0: copying $SHARE/$dir/ to $USERDIR/$dir/"
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cp -r $SHARE/$dir $dir
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fi
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done
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exec $BIN
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