Valery Reznic wrote:
Now I see it. You ager going to make string in "ps" to looks good.
That's part of it, but not all of it. If the only problem was the "ps"
output, I would have lived with it. The real problem is that argv[0] is
an actual argument that some programs use.
Think of the following case (which is why fakeroot-ng was originally
conceived). You want to set up a chroot for some embedded development.
You compile busybox and copy it in, creating all of the symlinks (i.e. -
$root/bin/ls is a symlink to /bin/busybox etc.) Now you chroot into $root.
When you run "ls", you do so using the following command:
execve( /bin/ls, array( "/bin/ls", options, NULL ) )
since we're inside a chroot, fakeroot-ng needs to resolve all links
itself to make sure they do not go outside the chroot. So the function
now looks like this:
execve( $root/bin/busybox, array( "/bin/ls", options, NULL ))
so far, not a problem. However, you suggest we turn it into:
execve( $root/lib/ld-linux.so.2, array( "$root/lib/ld-linux.so.2",
"$root/bin/busybox", options, NULL ) )
That will simply not work. Busybox needs argv[0] to know it is running
as "ls".
This is not aesthetics. This is functionality.
Thank you for the explanation.
Valery.
Shachar
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