959ca16023
This has the following advantages: - During boot, the BOOT_TIME record is now written right after the file systems become writable, but before users are allowed to log in. This means that they can't cause `hidden logins' by logging in right before init(8) kicks in. - The pututxline(3) function may potentially block on file locking, though this is very rare to occur. By placing it in an rc script, the user can still kill it with ^C if needed. - Most importantly: jails don't use init(8). This means that a force reboot of a system running jails will leave stale entries in the accounting database of the jails individually.
72 lines
1.2 KiB
Bash
Executable File
72 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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#
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# $FreeBSD$
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#
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# PROVIDE: cleanvar
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# REQUIRE: FILESYSTEMS var
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. /etc/rc.subr
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name="cleanvar"
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rcvar="cleanvar_enable"
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start_precmd="${name}_prestart"
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start_cmd="${name}_start"
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stop_cmd=":"
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extra_commands="reload"
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reload_cmd="${name}_start"
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purgedir()
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{
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local dir file
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if [ $# -eq 0 ]; then
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purgedir .
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else
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for dir
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do
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(
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cd "$dir" && for file in .* *
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do
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# Skip over logging sockets
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[ -S "$file" -a "$file" = "log" ] && continue
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[ -S "$file" -a "$file" = "logpriv" ] && continue
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[ ."$file" = .. -o ."$file" = ... ] && continue
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if [ -d "$file" -a ! -L "$file" ]
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then
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purgedir "$file"
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else
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rm -f -- "$file"
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fi
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done
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)
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done
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fi
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}
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cleanvar_prestart()
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{
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# These files must be removed only the first time this script is run
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# on boot.
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#
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rm -f /var/run/clean_var /var/spool/lock/clean_var
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}
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cleanvar_start ()
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{
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if [ -d /var/run -a ! -f /var/run/clean_var ]; then
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purgedir /var/run
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>/var/run/clean_var
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fi
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if [ -d /var/spool/lock -a ! -f /var/spool/lock/clean_var ]; then
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purgedir /var/spool/lock
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>/var/spool/lock/clean_var
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fi
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rm -rf /var/spool/uucp/.Temp/*
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}
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load_rc_config $name
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run_rc_command "$1"
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