3645513107
assignments to the literal values it would have returned.
The concept of set_rcvar() was nice in theory, but the forks
it creates are a drag on the startup process, which is especially
noticeable on slower systems, such as embedded ones.
During the discussion on freebsd-rc@ a preference was expressed for
using ${name}_enable instead of the literal values. However the
code portability concept doesn't really apply since there are so
many other places where the literal name has to be searched for
and replaced. Also, using the literal value is also a tiny bit
faster than dereferencing the variables, and every little bit helps.
61 lines
1.8 KiB
Bash
Executable File
61 lines
1.8 KiB
Bash
Executable File
#!/bin/sh
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#
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# $FreeBSD$
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#
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# PROVIDE: cleartmp
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# REQUIRE: mountcritremote tmp
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# BEFORE: DAEMON
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. /etc/rc.subr
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name="cleartmp"
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# Disguise rcvar for the start method to run irrespective of its setting.
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rcvar1="clear_tmp_enable"
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start_cmd="${name}_start"
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stop_cmd=":"
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cleartmp_start()
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{
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# Make /tmp location variable for easier debugging.
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local tmp="/tmp"
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# X related directories to create in /tmp.
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local x11_socket_dirs="${tmp}/.X11-unix ${tmp}/.XIM-unix \
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${tmp}/.ICE-unix ${tmp}/.font-unix"
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if checkyesno ${rcvar1}; then
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check_startmsgs && echo "Clearing ${tmp}."
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# This is not needed for mfs, but doesn't hurt anything.
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# Things to note:
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# + The dot in ${tmp}/. is important.
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# + Put -prune before -exec so find never descends
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# into a directory that was already passed to rm -rf.
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# + "--" in rm arguments isn't strictly necessary, but
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# it can prevent foot-shooting in future.
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# + /tmp/lost+found is preserved, but its contents are removed.
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# + lost+found and quota.* in subdirectories are removed.
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# + .sujournal and .snap are preserved.
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find -x ${tmp}/. ! -name . \
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! \( -name .sujournal -type f -user root \) \
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! \( -name .snap -type d -user root \) \
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! \( -name lost+found -type d -user root \) \
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! \( \( -name quota.user -or -name quota.group \) \
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-type f -user root \) \
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-prune -exec rm -rf -- {} +
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elif checkyesno clear_tmp_X; then
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# Remove X lock files, since they will prevent you from
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# restarting X. Remove other X related directories.
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check_startmsgs && echo "Clearing ${tmp} (X related)."
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rm -rf ${tmp}/.X[0-9]-lock ${x11_socket_dirs}
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fi
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if checkyesno clear_tmp_X; then
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# Create X related directories with proper permissions.
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mkdir -m 1777 ${x11_socket_dirs}
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fi
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}
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load_rc_config $name
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run_rc_command "$1"
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