description:

this is a work in progress workaround for issues like ValveSoftware/steam-for-linux#4982

building:

cd build
cmake ..
make

running:

./wrap.sh (optional arguments to steam)

known issues:

it doesn't actually work yet, even though all the syscalls [f]stat[v]fs[64] are being wrapped and wrap.sh does the best I could to make it preload pretty much everywhere in steam, there are still a few calls that appear not to be wrapped correctly in strace and it doesn't show the modified values in either the "install game" or "manage libraries" dialogs.

wrapping tools like df actually produces the expected result though. I have no idea how steam still gets the values, probably by using some worker that doesn't get the same environment.

ways I try to prevent steam from kicking us out of LD_PRELOAD:

• wrap and filter setenv,putenv
• wrap and prevent clearenv
• wrap and prepend the paths to execve's envp[] argument

still doesn't work though.

any input on this is VERY appreciated.