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Simply execute the last entry in the list directly instead of forking and
remove the cleanup code.
If the list is empty, we return success.
If the list only has one entry, we directly execute that. No need to make a
distinction between single entry vs list anymore.
If the list is an actual list, we run it as before but execute the last one
directly. Typically, the last one is something like a daemon preceeded by
setup code. The daemon ends up directly underneath init, without a dummy
waiting runsvc stuck in the process list.
If we always do an exec, there is no point in doing cleanup. All our mapped
memory is evicted anyway. Same if we exit appruptly because of an error.
Signed-off-by: David Oberhollenzer <goliath@infraroot.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
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This commit adds a "truncate" flag that can be added to a service
description between the "tty" keyword and the path string.
If the flag is set, the output file is truncated to 0 after opening.
This probably requires some remodeling in the future as the tty keyword
no longer deals with just tty devices.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
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We no longer need to keep entire scripts in init program (i.e. saving space)
and reduce the code and complexity of the init program.
The runsvc tool can later be extended to do more complex child setup, such
as configuring namespaces or seccomp without adding complexity or memory
footprint to init.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
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