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Diffstat (limited to 'bootscripts/contrib/lsb-v3/init.d/lfs-functions')
| -rw-r--r-- | bootscripts/contrib/lsb-v3/init.d/lfs-functions | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/bootscripts/contrib/lsb-v3/init.d/lfs-functions b/bootscripts/contrib/lsb-v3/init.d/lfs-functions new file mode 100644 index 000000000..afcd05de8 --- /dev/null +++ b/bootscripts/contrib/lsb-v3/init.d/lfs-functions @@ -0,0 +1,214 @@ +# Begin /etc/init.d/lfs-functions +# Provides LFS specific functions for LSB style bootscripts + +################################# chkstat() ################################### +# chk_stat checks the status of a script by checking for both a binary file # +# to execute, and if set, a config file that may be needed for the program # +# to run successfully. The calling script will exit with a return value of 5 # +# if the binary does not exist, and a value of 6 if the needed config file is # +# unavailable as per LSB requirements. This function accepts zero, one, or # +# two string arguments. If arguments are passed, the first must be a bin # +# file. If a second argument is passed, it is interpreted as the config # +# file. Optionally, zero arguments can be passed if BIN_FILE, and optinally # +# CONFIG_FILE are set in the calling script. # +############################################################################### +chk_stat() +{ + if [ "${#}" -gt "0" -a "${#}" -lt "3" ]; then + BIN_FILE="${1}" + if [ -z "${2}" ]; then + CONFIG_FILE="" + else + CONFIG_FILE="${2}" + fi + elif [ -z "${BIN_FILE}" ]; then + echo "Usage: 'chk_stat BIN_FILE CONFIG_FILE'" + exit 1 # Generic Error + fi + + if [ ! -e "${BIN_FILE}" ]; then + log_failure_msg "${BIN_FILE} not installed" && + exit 5 + fi + + if [ ! -z "${CONFIG_FILE}" ]; then + if [ ! -e "${CONFIG_FILE}" ]; then + log_failure_msg "${CONFIG_FILE} does not exist" && + exit 6 + fi + fi +} + +################################ loadproc() ################################### +# loadproc is just a wraper to start_daemon for simple scripts, which will # +# require no arguments if $BIN_FILE is set. # +############################################################################### +loadproc() +{ + start_daemon "${BIN_FILE}" "${@}" +} + +################################ endproc() #################################### +# endproc, like loadproc, is just a wraper to killproc for simplicity and is # +# dependent on $BIN_FILE being set. # +############################################################################### +endproc() +{ + killproc "${BIN_FILE}" "${@}" +} + +############################### statusproc() ################################## +# statusproc checks the status of a particular binary and displays the # +# appropriate message (running or not running) and exits on the return value # +# of pidofproc. This function accepts two string arguments or zero arguments # +# if BIN_FILE and MESSAGE are set, else it requires the bin file as the first # +# argument, and the message as the second. Both must be enclosed in quotes. # +############################################################################### +statusproc() +{ + if [ "${#}" -gt "0" -a "${#}" -lt "3" ]; then + BIN_FILE="${1}" + MESSAGE="${2}" + elif [ -z "${BIN_FILE}" -o -z "${MESSAGE}" ]; then + echo "Usage: 'statusproc BIN_FILE MESSAGE'" + exit 1 # Generic Error + fi + + pidlist=`pidofproc "${BIN_FILE}"` + STATUS=$? + echo "Checking ${MESSAGE} status:" + if [ "${STATUS}" = "0" ]; then + log_success_msg "Running with PID(s) ${pidlist}" + else + log_warning_msg "Not running!" + fi + + return "${STATUS}" +} + +############################### reloadproc() ################################## +# reloadproc sends a HUP signal to the running program (relaod configuration) # +# It optionally, using the -force switch, checks the status of a particular # +# program and starts it if it is not already running. This function accepts # +# one optional switch (must be the first argument), and either two, or zero # +# string arguments. If BIN_FILE and MESSAGE are set in the script's # +# environment, it will use those values, else it requires the bin file as # +# the first argument (following -force if used), and the message as the # +# second. Both must be enclosed in quotes. If the force option is used, it # +# follows the LSB definition of 'force-reload' - the program is started if # +# not already running. # +############################################################################### +reloadproc() +{ + local force="0" + if [ "${#}" -gt "0" -a "${1}" = "-force" ]; then + force="1" + shift 1 + fi + + if [ "${#}" -gt "0" -a "${#}" -lt "3" ]; then + BIN_FILE="${1}" + MESSAGE="${2}" + elif [ -z "${BIN_FILE}" -o -z "${MESSAGE}" ]; then + echo "Usage: 'reloadproc BIN_FILE MESSAGE'" + exit 1 # Generic Error + fi + + + +} + +############################## evaluate_retval() ############################### +# evaluate_retval requires that you pass exactly one evaluation parameter of # +# (start, stop, other) based on the previous action that is being evaluated. # +# This function is intended for use with start_daemon and killproc to # +# interpret the LSB exit codes properly, othewise the checks only for success # +# or failure. # +################################################################################ +evaluate_retval() +{ + local error_value="${?}" + + # Handle LSB defined return values + case "${1}" in + + start) + case "${error_value}" in + 0) + log_success_msg "Starting ${MESSAGE} " + return "${error_value}" + ;; + 2) + log_failure_msg "Starting ${MESSAGE} Error: Invalid argument!" + return "${error_value}" + ;; + 5) + log_failure_msg "Starting ${MESSAGE} Error: Not available!" + return "${error_value}" + ;; + *) + log_failure_msg "Starting ${MESSAGE} Error: General failure!" + return "${error_value}" + ;; + esac + ;; + + stop) + case "${error_value}" in + 0) + log_success_msg "Stopping ${MESSAGE} " + return "${error_value}" + ;; + 2) + log_failure_msg "Stopping ${MESSAGE} Error: Invalid argument!" + return "${error_value}" + ;; + 5) + log_failure_msg "Stopping ${MESSAGE} Error: Not available!" + return "${error_value}" + ;; + 7) + log_warning_msg "Stopping ${MESSAGE} Warning: Not running!" + return "${error_value}" + ;; + *) + log_failure_msg "Stopping ${MESSAGE} Error: General failure!" + return "${error_value}" + ;; + esac + ;; + + force-reload) + message="Forcefully reloading " + ;; + + reload) + message="Reloading " + ;; + + restart) + message="Restarting " + ;; + + try-restart) + message="Trying restart " + ;; + + standard) + # $message or $MESSAGE must be set, but not both in order + # to use the 'standard' target. + ;; + esac + + # Print messages for the generic force-reload, reload, restart, + # and try-restart targets + if [ "${error_value}" = "0" ] + then + log_success_msg "${message}${MESSAGE} " + return "${error_value}" + else + log_failure_msg "${message}${MESSAGE} " + return "${error_value}" + fi +} + |