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At the moment the daemon code contains an incredibly hairy function called shell_quote for safely quoting strings passed to the shell. The patch replaces that with a glibc custom printf format (actually two, but very closely related), %Q and %R. %Q is like %s but it safely shell quotes the string. %R is like %Q but it prefixes the path with /sysroot. Example usage (w/o error checks):

Hi, as discussed in [1], this series adds a new getprogname module. All it does is providing a getprogname function, much like what is found on e.g. *BSD systems, and using it in gnulib instead of progname. Also, using it explicitly by modules avoids gnulib users the need of either use the progname module (GPL), or to provide program_name (and call set_program_name manually, which is not always