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|
#!/bin/sh
# PROVIDE: webcamd
# REQUIRE: FILESYSTEMS netif dbus kld
# KEYWORD: shutdown
#
# ================================================================
# Webcamd is enabled by adding the following line to /etc/rc.conf:
# ================================================================
#
# webcamd_enable="YES"
#
# ================================================================
# By default webcamd instances are invoked by the devd(8) system
# daemon and you do not normally need to do any extra configuration
# just restart the devd service. If the devd service is not enabled,
# you need to add instances of "webcamd_N_flags=" which contain at
# least one of the "-d", "-D", "-N", or "-S" options.
# ================================================================
#
# webcamd_0_flags="<instance 0 flags>"
# webcamd_1_flags="<instance 1 flags>"
# etc ...
#
# ================================================================
# Specify which USB device to start with the "-N" and "-S" options.
# For example, if "webcamd -l" shows this device in device list:
# webcamd [-d ugen7.2] -N SCEH-0036-SONY -S ALR001DN4J -M 0
#
# Then it can be set in your rc.conf file:
# webcamd_0_flags="-N SCEH-0036-SONY -S ALR001DN4J"
#
# ================================================================
# You can add extra instances with webcamd_N_flags, where "N" is a
# sequentially increasing number starting from "0".
# ================================================================
#
# ================================================================
# General flags can be set on all webcamd instances with the variable
# "webcamd_flags" which applies globally to all instances:
# ================================================================
# webcamd_flags="-m v4l2-dev.hflip=1"
#
# ================================================================
# If you need to start a vtuner client instance using the "-D" option,
# put the following line into your rc.conf. The "-i" option must be
# unique for every vtuner client instance, else there will be a PID
# file name conflict.
# ================================================================
# webcamd_2_flags="-D 127.0.0.1:5100:-1 -i 0"
# ================================================================
#
# ================================================================
# If you have multiple identical devices of the same model number,
# then you should specify the unique serial number for each instance
# the recommended way with "-N" and "-S" options.
#
# However some USB devices may not have a unique serial number. So if
# "-S" output is blank or always the same then serial number is no
# good. You should instead use "-N" and the "-M" index option.
#
# ================================================================
# If you are using a remote control you might need to force the
# protocol by setting the "rc-main.default_protocol" parameter to
# "lirc" for example. Run webcamd -s to get a description of available
# protocols.
# ================================================================
#
# webcamd_flags="-m rc-main.default_protocol=lirc"
# webcamd_N_flags="-m rc-main.default_protocol=lirc"
#
# ================================================================
# Additional Webcamd flags:
# ================================================================
#
# webcamd_startup_delay=<seconds>
# webcamd_user=<the user to run webcamd as>
# webcamd_group=<the group to run webcamd as>
# webcamd_devd_starts_unspecified=<YES/NO>
#
. /etc/rc.subr
name=webcamd
rcvar=webcamd_enable
load_rc_config $name
: ${webcamd_enable:=NO}
: ${webcamd_user:=webcamd}
: ${webcamd_group:=webcamd}
: ${webcamd_startup_delay=1}
: ${webcamd_devd_starts_unspecified=YES}
: ${hald_enable:=NO}
# If invoked automatically by devd, we receive additional arguments
devd_device=${2}
devd_interface=${3-0}
command=%%PREFIX%%/sbin/webcamd
command_args="-B -U ${webcamd_user} -G ${webcamd_group}"
start_cmd="${name}_start"
stop_cmd="${name}_stop"
status_cmd="${name}_status"
#
# The following pidfile should not exist and
# allows multiple instances of webcamd to be
# started.
#
pidfile="/var/run/${name}.dummy.pid"
webcamd_pids()
{
pids=$(pgrep -d ' ' $name)
pids=${pids% }
printf "${pids}"
}
webcamd_grep_instance_flags()
{
echo "$instance_flags" | grep -oE -- "(^| | )($1)"
exit 0
}
webcamd_start_devd()
{
# Start a single USB device, as this rc.d script was invoked by devd
# with extra arguments
n=0
while true
do
instance_flags=$(eval "echo \$webcamd_${n}_flags")
n=$(expr $n + 1)
if [ ! "$instance_flags" ]; then
instance_flags="-d ${devd_device}"
break
fi
# ignore instance entries which are for "-D" vtuner client
if [ "$(webcamd_grep_instance_flags '-D')" ]; then
continue
fi
# skip flags if no "-d" option is present
if [ ! "$(webcamd_grep_instance_flags '-d')" ]; then
continue
fi
# skip if the "-d" option does not match
if [ ! "$(webcamd_grep_instance_flags '-d[ ]*[[:alpha:]]*'${devd_device#ugen})" ]; then
continue
fi
# we got a match
break
done
if checkyesno webcamd_devd_starts_unspecified; then
# Try to start the connected USB device
${command} -i ${devd_interface} ${instance_flags} ${webcamd_flags} ${command_args}
fi
}
webcamd_start()
{
# If this rc.d script was invoked by devd
if [ "$devd_device" ]; then
# Then start the device ugenX.X, as provied in the argv $2, $3
webcamd_start_devd
else
# Start specified instances
webcamd_start_instances
fi
}
webcamd_start_instances()
{
# Start instances that were specified by $webcamd_N_flags
echo "Starting ${name}."
n=0
instance_flags=$(eval "echo \$webcamd_${n}_flags")
while true
do
n=$(expr $n + 1)
if [ ! "$instance_flags" ]; then
break
fi
# check if valid flags are present
if [ ! "$(webcamd_grep_instance_flags '-d|-D|-N|-S')" ]; then
continue
fi
# launch an instance of webcamd for this configuration entry
${command} ${instance_flags} ${webcamd_flags} ${command_args}
# next instance flags
instance_flags=$(eval "echo \$webcamd_${n}_flags")
if [ "$instance_flags" ]; then
# wait a bit before invoking next instance
sleep "$webcamd_startup_delay"
fi
done
}
webcamd_stop()
{
pids=$(webcamd_pids)
if [ "${pids}" ]; then
echo "Stopping ${name}."
echo "Waiting for PIDs: ${pids}"
for signal in TERM INT QUIT KILL HUP
do
kill -s ${signal} ${pids}
sleep 1
pids=$(webcamd_pids)
[ "${pids}" ] || break
done
else
echo "${name} is not running."
return 1
fi
}
webcamd_status()
{
pids=$(webcamd_pids)
if [ "${pids}" ]; then
echo "${name} is running as pid ${pids}."
else
echo "${name} is not running."
return 1
fi
}
run_rc_command "$1"
|
