This allows the `xrdp` part of the path `/etc/xrdp` where config files
are placed to be customizable. This change is useful when trying the
stable version and the devel version alternately.
xrdp-droppriv.c is erroneously including os_calls.c rather than
os_calls.h
This leads to a link failure on Ubuntu 20.04:-
/usr/bin/ld: xrdp-droppriv.o: undefined reference to symbol 'dlclose@@GLIBC_2.2.5'
The error does not happen with later glibc versions, as libdl is
included in libc for these versions.
(cherry picked from commit b914d3e997ee70544db5fd2e28509bbcae32ddc6)
While here, drop exec permission from xrdp-chkpriv.in. The exec
permission will be granted to substituted xrdp-chkpriv script
during `make install` process.
The unprivileged user needs to be able to read the certificate and
key files to offer TLS, but should not be able to write to then.
This commit checks the TLS files are read-only, rather than
simply readable
matt335672