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Replace 'system' call by proc_exec function from proc.c
module. It allows to easy extend cpp invoking with additional
options (like -D) in more secure way.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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There might be a case when input file is located
in read-only directory and cpp fails when it tries to
create output file there, so use /tmp folder for that
as usually it should be writeable for any user.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add cpp_exec func to invoke C preprocessor
which allow to change the logic in one place only.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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