* Added plugins: check_*_uptim, check_linux_fetchmail_status, check_linux_dovecot_status

* Fixes for check_*_ntp_status plugins.
* Added log check for check_*_postfix plugins.

build/aix/hc_aix_platform/hc_aix_platform.template

@@ -32,12 +32,14 @@ Fileset
 /opt/hc/lib/platform/aix/check_aix_subsystems.sh
 /opt/hc/lib/platform/aix/check_aix_sysbackup.sh
 /opt/hc/lib/platform/aix/check_aix_topasrec.sh
+/opt/hc/lib/platform/aix/check_aix_uptime.sh
 /etc/opt/hc
 /etc/opt/hc/check_aix_file_age.conf.dist
 /etc/opt/hc/check_aix_file_change.conf.dist
 /etc/opt/hc/check_aix_root_crontab.conf.dist
 /etc/opt/hc/check_aix_subsystems.conf.dist
 /etc/opt/hc/check_aix_sysbackup.conf.dist
+/etc/opt/hc/check_aix_uptime.conf.dist
   EOROOTFiles
   Relocatable: N
 EOFileset

build/hpux/hc_hpux_platform/hc_hpux_platform.psf

@@ -72,7 +72,7 @@ This is the OS/platform plugin package"
         file            -m 755 check_hpux_ignite_backup.sh
         file            -m 755 check_hpux_ioscan.sh
         file            -m 755 check_hpux_guid_status.sh
-        file            -m 644 check_hpux_hpvm_vpar_status.sh
+        file            -m 755 check_hpux_hpvm_vpar_status.sh
         file            -m 755 check_hpux_httpd_status.sh
         file            -m 755 check_hpux_kernel_params.sh
         file            -m 755 check_hpux_kernel_usage.sh
@@ -87,6 +87,7 @@ This is the OS/platform plugin package"
         file            -m 755 check_hpux_sshd_status.sh
         file            -m 755 check_hpux_syslog.sh
         file            -m 755 check_hpux_syslogd_status.sh
+        file            -m 755 check_hpux_uptime.sh
         file            -m 755 check_hpux_vg_minor_number.sh
     end
 
@@ -115,11 +116,12 @@ This is the OS/platform plugin package"
         file            -m 644 check_hpux_kernel_params.conf.dist
         file            -m 644 check_hpux_kernel_usage.conf.dist
         file            -m 644 check_hpux_ntp_status.conf.dist
-        file            -m 755 check_hpux_ovpa_status.conf.dist
+        file            -m 644 check_hpux_ovpa_status.conf.dist
-        file            -m 755 check_hpux_patch_version.conf.dist
+        file            -m 644 check_hpux_patch_version.conf.dist
         file            -m 644 check_hpux_root_crontab.conf.dist
         file            -m 644 check_hpux_sfm_status.conf.dist
         file            -m 644 check_hpux_syslog.conf.dist
+        file            -m 644 check_hpux_uptime.conf.dist
     end
 
     fileset

build/linux/ARCH/hc-linux-platform/PKGBUILD

@@ -22,8 +22,10 @@ package() {
     install -D -m 755 opt/hc/lib/platform/linux/check_linux_autofs.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_autofs.sh
     install -D -m 755 opt/hc/lib/platform/linux/check_linux_burp_backup.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_burp_backup.sh
     install -D -m 755 opt/hc/lib/platform/linux/check_linux_burp_status.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_burp_status.sh
+    install -D -m 755 opt/hc/lib/platform/linux/check_linux_dovecot_status.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_dovecot_status.sh
     install -D -m 755 opt/hc/lib/platform/linux/check_linux_es_status.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_es_status.sh
     install -D -m 755 opt/hc/lib/platform/linux/check_linux_fail2ban_status.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_fail2ban_status.sh
+    install -D -m 755 opt/hc/lib/platform/linux/check_linux_fetchmail_status.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_fetchmail_status.sh
     install -D -m 755 opt/hc/lib/platform/linux/check_linux_file_age.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_file_age.sh
     install -D -m 755 opt/hc/lib/platform/linux/check_linux_file_change.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_file_change.sh
     install -D -m 755 opt/hc/lib/platform/linux/check_linux_fs_mounts.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_fs_mounts.sh
@@ -43,6 +45,7 @@ package() {
     install -D -m 755 opt/hc/lib/platform/linux/check_linux_hpssacli.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_hpssacli.sh
     install -D -m 755 opt/hc/lib/platform/linux/check_linux_process_limits.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_process_limits.sh
     install -D -m 755 opt/hc/lib/platform/linux/check_linux_root_crontab.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_root_crontab.sh
+    install -D -m 755 opt/hc/lib/platform/linux/check_linux_uptime.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_uptime.sh
     install -D -m 755 opt/hc/lib/platform/linux/check_linux_vz_ct_counters.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_vz_ct_counters.sh
     install -D -m 755 opt/hc/lib/platform/linux/check_linux_vz_ct_status.sh ${pkgdir}/opt/hc/lib/platform/linux/check_linux_vz_ct_status.sh
     install -d -m 755 ${pkgdir}/etc/opt/hc
@@ -50,6 +53,7 @@ package() {
     install -D -m 644 etc/opt/hc/check_linux_burp_backup.conf.dist ${pkgdir}/etc/opt/hc/check_linux_burp_backup.conf.dist
     install -D -m 644 etc/opt/hc/check_linux_es_status.conf.dist ${pkgdir}/etc/opt/hc/check_linux_es_status.conf.dist
     install -D -m 644 etc/opt/hc/check_linux_fail2ban_status.conf.dist ${pkgdir}/etc/opt/hc/check_linux_fail2ban_status.conf.dist
+    install -D -m 644 etc/opt/hc/check_linux_fetchmail_status.conf.dist ${pkgdir}/etc/opt/hc/check_linux_fetchmail_status.conf.dist
     install -D -m 644 etc/opt/hc/check_linux_file_age.conf.dist ${pkgdir}/etc/opt/hc/check_linux_file_age.conf.dist
     install -D -m 644 etc/opt/hc/check_linux_file_change.conf.dist ${pkgdir}/etc/opt/hc/check_linux_file_change.conf.dist
     install -D -m 644 etc/opt/hc/check_linux_fs_usage.conf.dist ${pkgdir}/etc/opt/hc/check_linux_fs_usage.conf.dist
@@ -62,6 +66,7 @@ package() {
     install -D -m 644 etc/opt/hc/check_linux_ntp_status.conf.dist ${pkgdir}/etc/opt/hc/check_linux_ntp_status.conf.dist
     install -D -m 644 etc/opt/hc/check_linux_process_limits.conf.dist ${pkgdir}/etc/opt/hc/check_linux_process_limits.conf.dist
     install -D -m 644 etc/opt/hc/check_linux_root_crontab.conf.dist ${pkgdir}/etc/opt/hc/check_linux_root_crontab.conf.dist
+    install -D -m 644 etc/opt/hc/check_linux_uptime.conf.dist ${pkgdir}/etc/opt/hc/check_linux_uptime.conf.dist
     install -D -m 644 etc/opt/hc/check_linux_vz_ct_counters.conf.dist ${pkgdir}/etc/opt/hc/check_linux_vz_ct_counters.conf.dist
     install -D -m 644 etc/opt/hc/check_linux_vz_ct_status.conf.dist ${pkgdir}/etc/opt/hc/check_linux_vz_ct_status.conf.dist
     install -d -m 755 ${pkgdir}/etc/opt/hc/core

build/linux/SPECS/hc-linux-platform.spec

@@ -30,8 +30,10 @@ install -d -m 755 $RPM_BUILD_ROOT/opt/hc/lib/platform/linux
 cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_autofs.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_autofs.sh
 cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_burp_backup.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_burp_backup.sh
 cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_burp_status.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_burp_status.sh
+cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_dovecot_status.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_dovecot_status.sh
 cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_es_status.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_es_status.sh
 cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_fail2ban_status.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_fail2ban_status.sh
+cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_fetchmail_status.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_fetchmail_status.sh
 cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_file_age.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_file_age.sh
 cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_file_change.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_file_change.sh
 cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_fs_mounts.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_fs_mounts.sh
@@ -51,6 +53,7 @@ cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_hplog.sh $RPM_BUILD_ROOT/opt
 cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_hpssacli.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_hpssacli.sh
 cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_process_limits.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_process_limits.sh
 cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_root_crontab.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_root_crontab.sh
+cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_uptime.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_uptime.sh
 cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_vz_ct_counters.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_vz_ct_counters.sh
 cp ../SOURCES/opt/hc/lib/platform/linux/check_linux_vz_ct_status.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_vz_ct_status.sh
 install -d -m 755 $RPM_BUILD_ROOT/etc/opt/hc
@@ -58,6 +61,7 @@ cp ../SOURCES/etc/opt/hc/check_linux_autofs.conf.dist $RPM_BUILD_ROOT/etc/opt/hc
 cp ../SOURCES/etc/opt/hc/check_linux_burp_backup.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_burp_backup.conf.dist
 cp ../SOURCES/etc/opt/hc/check_linux_es_status.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_es_status.conf.dist
 cp ../SOURCES/etc/opt/hc/check_linux_fail2ban_status.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_fail2ban_status.conf.dist
+cp ../SOURCES/etc/opt/hc/check_linux_fetchmail_status.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_fetchmail_status.conf.dist
 cp ../SOURCES/etc/opt/hc/check_linux_file_age.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_file_age.conf.dist
 cp ../SOURCES/etc/opt/hc/check_linux_file_change.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_file_change.conf.dist
 cp ../SOURCES/etc/opt/hc/check_linux_fs_usage.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_fs_usage.conf.dist
@@ -70,6 +74,7 @@ cp ../SOURCES/etc/opt/hc/check_linux_mysqld_status.conf.dist $RPM_BUILD_ROOT/etc
 cp ../SOURCES/etc/opt/hc/check_linux_ntp_status.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_ntp_status.conf.dist
 cp ../SOURCES/etc/opt/hc/check_linux_process_limits.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_process_limits.conf.dist
 cp ../SOURCES/etc/opt/hc/check_linux_root_crontab.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_root_crontab.conf.dist
+cp ../SOURCES/etc/opt/hc/check_linux_uptime.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_uptime.conf.dist
 cp ../SOURCES/etc/opt/hc/check_linux_vz_ct_counters.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_vz_ct_counters.conf.dist
 cp ../SOURCES/etc/opt/hc/check_linux_vz_ct_status.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_vz_ct_status.conf.dist
 install -d -m 755 $RPM_BUILD_ROOT/etc/opt/hc/core
@@ -115,8 +120,10 @@ echo "INFO: finished post-uninstall script"
 %attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_autofs.sh
 %attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_burp_backup.sh
 %attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_burp_status.sh
+%attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_dovecot_status.sh
 %attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_es_status.sh
 %attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_fail2ban_status.sh
+%attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_fetchmail_status.sh
 %attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_file_age.sh
 %attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_file_change.sh
 %attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_fs_mounts.sh
@@ -136,6 +143,7 @@ echo "INFO: finished post-uninstall script"
 %attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_hpssacli.sh
 %attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_process_limits.sh
 %attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_root_crontab.sh
+%attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_uptime.sh
 %attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_vz_ct_counters.sh
 %attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_vz_ct_status.sh
 %dir /etc/opt/hc
@@ -143,6 +151,7 @@ echo "INFO: finished post-uninstall script"
 %attr(644, root, root) /etc/opt/hc/check_linux_burp_backup.conf.dist
 %attr(644, root, root) /etc/opt/hc/check_linux_es_status.conf.dist
 %attr(644, root, root) /etc/opt/hc/check_linux_fail2ban_status.conf.dist
+%attr(644, root, root) /etc/opt/hc/check_linux_fetchmail_status.conf.dist
 %attr(644, root, root) /etc/opt/hc/check_linux_file_age.conf.dist
 %attr(644, root, root) /etc/opt/hc/check_linux_file_change.conf.dist
 %attr(644, root, root) /etc/opt/hc/check_linux_fs_usage.conf.dist
@@ -155,6 +164,7 @@ echo "INFO: finished post-uninstall script"
 %attr(644, root, root) /etc/opt/hc/check_linux_ntp_status.conf.dist
 %attr(644, root, root) /etc/opt/hc/check_linux_process_limits.conf.dist
 %attr(644, root, root) /etc/opt/hc/check_linux_root_crontab.conf.dist
+%attr(644, root, root) /etc/opt/hc/check_linux_uptime.conf.dist
 %attr(644, root, root) /etc/opt/hc/check_linux_vz_ct_counters.conf.dist
 %attr(644, root, root) /etc/opt/hc/check_linux_vz_ct_status.conf.dist
 %dir /etc/opt/hc/core
@@ -163,6 +173,11 @@ echo "INFO: finished post-uninstall script"
 %attr(644, root, root) /etc/opt/hc/core/templates/mail_body.tpl-check_linux_root_crontab
 
 %changelog
+* Sat Dec 26 2020 <patrick@kudos.be> - 0.3.5
+- Added check_linux_fetchmail_status plugin
+- Added check_linux_dovecot_status plugin
+* Mon Dec 21 2020 <patrick@kudos.be> - 0.3.4
+- Added check_linux_uptime plugin
 * Fri Oct 18 2020 <patrick@kudos.be> - 0.3.3
 - Added check_linux_fail2ban_status plugin
 * Fri Nov  1 2019 <patrick@kudos.be> - 0.3.2

etc/opt/hc/check_aix_uptime.conf.dist

@@ -0,0 +1,41 @@
+#******************************************************************************
+# @(#) check_aix_uptime.conf
+#******************************************************************************
+# This is a configuration file for the check_aix_uptime HC plugin.
+# All lines starting with a '#' are comment lines.
+# [default: indicates hardcoded script values if no value is defined here]
+#******************************************************************************
+
+# specify whether to also log passed health checks
+# (warning: this may rapidly grow the HC log)
+# [default: no]
+log_healthy="no"
+
+# trigger event when current uptime is less than previously record uptime?
+# [default: yes]
+check_reboot="yes"
+
+# time to wait before the current uptime is considered for the reboot check.
+# Example: a value of 60m means the check for a previous reboot will be at earliest
+#          performed 1 hour after the last reboot of the host.
+# Format: <value>m|h|d where m=minutes, h=hours, d=days (lowercase suffix).
+#         if no suffix is specified, then minutes are assumed.
+# [default: 60m]
+reboot_time="60m"
+
+# trigger event when current uptime goes over the maximum threshold?
+# [default: no]
+check_old_age="no"
+
+# time to expire before the current uptime is considered "old age".
+# Example: a value of 365d means a must-reboot will be flagged at earliest after
+#          1 year of uptime of the host
+# Format: <value>m|h|d where m=minutes, h=hours, d=days (lowercase suffix).
+#         if no suffix is specified, then minutes are assumed.
+# [default: 365d]
+old_age_time="365d"
+
+
+#******************************************************************************
+# End of FILE
+#******************************************************************************

etc/opt/hc/check_hpux_uptime.conf.dist

@@ -0,0 +1,41 @@
+#******************************************************************************
+# @(#) check_hpux_uptime.conf
+#******************************************************************************
+# This is a configuration file for the check_hpux_uptime HC plugin.
+# All lines starting with a '#' are comment lines.
+# [default: indicates hardcoded script values if no value is defined here]
+#******************************************************************************
+
+# specify whether to also log passed health checks
+# (warning: this may rapidly grow the HC log)
+# [default: no]
+log_healthy="no"
+
+# trigger event when current uptime is less than previously record uptime?
+# [default: yes]
+check_reboot="yes"
+
+# time to wait before the current uptime is considered for the reboot check.
+# Example: a value of 60m means the check for a previous reboot will be at earliest
+#          performed 1 hour after the last reboot of the host.
+# Format: <value>m|h|d where m=minutes, h=hours, d=days (lowercase suffix).
+#         if no suffix is specified, then minutes are assumed.
+# [default: 60m]
+reboot_time="60m"
+
+# trigger event when current uptime goes over the maximum threshold?
+# [default: no]
+check_old_age="no"
+
+# time to expire before the current uptime is considered "old age".
+# Example: a value of 365d means a must-reboot will be flagged at earliest after
+#          1 year of uptime of the host
+# Format: <value>m|h|d where m=minutes, h=hours, d=days (lowercase suffix).
+#         if no suffix is specified, then minutes are assumed.
+# [default: 365d]
+old_age_time="365d"
+
+
+#******************************************************************************
+# End of FILE
+#******************************************************************************

etc/opt/hc/check_linux_fetchmail_status.conf.dist

@@ -0,0 +1,28 @@
+#******************************************************************************
+# @(#) check_linux_fetchmail_status.conf
+#******************************************************************************
+# This is a configuration file for the check_linux_fetchmail_status HC plugin.
+# All lines starting with a '#' are comment lines.
+# [default: indicates hardcoded script values if no value is defined here]
+#******************************************************************************
+
+# specify whether to also log passed health checks
+# (warning: this may rapidly grow the HC log)
+# [default: no]
+log_healthy="no"
+
+# specify the regex of error codes that will be used to search the log file_path
+# [default: error|authfail|lockbusy|ioerr]
+error_regex="error|authfail|lockbusy|ioerr"
+
+# specify fetchmail details
+# Format:
+#   fetchmail:<account>:<rc_file>:<check_log=Yes|No>
+# Examples:
+#fetchmail:vmail:/srv/vmail/janedoe/.fetchmailrc:Yes
+#fetchmail:vmail:/srv/vmail/johndoe/.fetchmailrc:No
+
+
+#******************************************************************************
+# End of FILE
+#******************************************************************************

etc/opt/hc/check_linux_uptime.conf.dist

@@ -0,0 +1,41 @@
+#******************************************************************************
+# @(#) check_linux_uptime.conf
+#******************************************************************************
+# This is a configuration file for the check_linux_uptime HC plugin.
+# All lines starting with a '#' are comment lines.
+# [default: indicates hardcoded script values if no value is defined here]
+#******************************************************************************
+
+# specify whether to also log passed health checks
+# (warning: this may rapidly grow the HC log)
+# [default: no]
+log_healthy="no"
+
+# trigger event when current uptime is less than previously record uptime?
+# [default: yes]
+check_reboot="yes"
+
+# time to wait before the current uptime is considered for the reboot check.
+# Example: a value of 60m means the check for a previous reboot will be at earliest
+#          performed 1 hour after the last reboot of the host.
+# Format: <value>m|h|d where m=minutes, h=hours, d=days (lowercase suffix).
+#         if no suffix is specified, then minutes are assumed.
+# [default: 60m]
+reboot_time="60m"
+
+# trigger event when current uptime goes over the maximum threshold?
+# [default: no]
+check_old_age="no"
+
+# time to expire before the current uptime is considered "old age".
+# Example: a value of 365d means a must-reboot will be flagged at earliest after
+#          1 year of uptime of the host
+# Format: <value>m|h|d where m=minutes, h=hours, d=days (lowercase suffix).
+#         if no suffix is specified, then minutes are assumed.
+# [default: 365d]
+old_age_time="365d"
+
+
+#******************************************************************************
+# End of FILE
+#******************************************************************************

opt/hc/lib/core/include_data.sh

@@ -937,6 +937,7 @@ print ${_EPOCH}
 # REQUIRES: n/a
 function data_epoch2date
 {
+(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
 typeset _UNIX_EPOCH="${1}"
 typeset _CONVERT_DATE=""
 
@@ -962,6 +963,155 @@ fi
 return 0
 }
 
+# -----------------------------------------------------------------------------
+# @(#) FUNCTION: data_timestring_to_days()
+# DOES: converts a specific timestring to days (rounded to integer)
+# EXPECTS: time definition with a single s|m|h|d suffix [string]
+# OUTPUTS: time value in hours [string]
+# RETURNS: 0=conversion OK; 1=conversion failed
+# REQUIRES: n/a
+function data_timestring_to_days
+{
+(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
+typeset _DAYS=""
+
+case "${1}" in
+    *s|*s)
+        _DAYS=$(( $(print "${1%*[sS]}") / 60 / 60 / 24 ))
+        ;;
+    *m|*M)
+        _DAYS=$(( $(print "${1%*[mM]}") / 60 / 24 ))
+        ;;
+    *h|*H)
+        _DAYS=$(( $(print "${1%*[hH]}") / 24 ))
+        ;;
+    *d|*D)
+        _DAYS=$(print "${1%*[dD]}")
+        ;;
+    *)
+        # invalid suffix specified
+        (( ARG_DEBUG > 0 )) && debug "invalid time suffix specified (only s[econds]|m[inutes]|h[ours]|d[days] allowed)"
+        return 1
+        ;;
+esac
+
+print "${_HOURS}"
+
+return 0
+}
+
+# -----------------------------------------------------------------------------
+# @(#) FUNCTION: data_timestring_to_hours()
+# DOES: converts a specific timestring to hours (rounded to integer)
+# EXPECTS: time definition with a single s|m|h|d suffix [string]
+# OUTPUTS: time value in hours [string]
+# RETURNS: 0=conversion OK; 1=conversion failed
+# REQUIRES: n/a
+function data_timestring_to_hours
+{
+(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
+typeset _HOURS=""
+
+case "${1}" in
+    *s|*s)
+        _HOURS=$(( $(print "${1%*[sS]}") / 60 / 24 ))
+        ;;
+    *m|*M)
+        _HOURS=$(( $(print "${1%*[mM]}") / 60 ))
+        ;;
+    *h|*H)
+        _HOURS=$(print "${1%*[hH]}")
+        ;;
+    *d|*D)
+        _HOURS=$(( $(print "${1%*[dD]}") * 24 ))
+        ;;
+    *)
+        # invalid suffix specified
+        (( ARG_DEBUG > 0 )) && debug "invalid time suffix specified (only s[econds]|m[inutes]|h[ours]|d[days] allowed)"
+        return 1
+        ;;
+esac
+
+print "${_HOURS}"
+
+return 0
+}
+
+# -----------------------------------------------------------------------------
+# @(#) FUNCTION: data_timestring_to_mins()
+# DOES: converts a specific timestring to minutes (rounded to integer)
+# EXPECTS: time definition with a single s|m|h|d suffix [string]
+# OUTPUTS: time value in minutes [string]
+# RETURNS: 0=conversion OK; 1=conversion failed
+# REQUIRES: n/a
+function data_timestring_to_mins
+{
+(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
+typeset _MINUTES=""
+
+case "${1}" in
+    *s|*s)
+        _MINUTES=$(( $(print "${1%*[sS]}") / 60 ))
+        ;;
+    *m|*M)
+        _MINUTES=$(print "${1%*[mM]}")
+        ;;
+    *h|*H)
+        _MINUTES=$(( $(print "${1%*[hH]}") * 60 ))
+        ;;
+    *d|*D)
+        _MINUTES=$(( $(print "${1%*[dD]}") * 60 * 24 ))
+        ;;
+    *)
+        # invalid suffix specified
+        (( ARG_DEBUG > 0 )) && debug "invalid time suffix specified (only s[econds]|m[inutes]|h[ours]|d[days] allowed)"
+        return 1
+        ;;
+esac
+
+print "${_MINUTES}"
+
+return 0
+}
+
+# -----------------------------------------------------------------------------
+# @(#) FUNCTION: data_timestring_to_secs()
+# DOES: converts a specific timestring to seconds (rounded to integer)
+# EXPECTS: time definition with a single m|h|d suffix [string]
+# OUTPUTS: time value in seconds [string]
+# RETURNS: 0=conversion OK; 1=conversion failed
+# REQUIRES: n/a
+function data_timestring_to_secs
+{
+(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
+typeset _SECONDS=""
+
+case "${1}" in
+    *s|*s)
+        _SECONDS=$(print "${1%*[sS]}")
+        ;;
+    *m|*M)
+        _SECONDS=$(( $(print "${1%*[Mm]}") * 60 ))
+        ;;
+    *h|*H)
+        _SECONDS=$(( $(print "${1%*[hH]}") * 60 * 60 ))
+        ;;
+    *d|*D)
+        _SECONDS=$(( $(print "${1%*[dD]}") * 60 * 60 * 24 ))
+        ;;
+    *)
+        # invalid suffix specified
+        (( ARG_DEBUG > 0 )) && debug "invalid time suffix specified (only s[econds]|m[inutes]|h[ours]|d[days] allowed)"
+        return 1
+        ;;
+esac
+
+print "${_SECONDS}"
+
+return 0
+}
+
+
 #******************************************************************************
 # END of script
 #******************************************************************************

opt/hc/lib/platform/aix/check_aix_uptime.sh

@@ -0,0 +1,349 @@
+#!/usr/bin/env ksh
+#------------------------------------------------------------------------------
+# @(#) check_aix_uptime
+#------------------------------------------------------------------------------
+# @(#) Copyright (C) 2020 by KUDOS BVBA (info@kudos.be).  All rights reserved.
+#
+# This program is a free software; you can redistribute it and/or modify
+# it under the same terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details
+#------------------------------------------------------------------------------
+#
+# DOCUMENTATION (MAIN)
+# -----------------------------------------------------------------------------
+# @(#) MAIN: check_aix_uptime
+# DOES: see _show_usage()
+# EXPECTS: see _show_usage()
+# REQUIRES: data_is_numeric(), data_timestring_to_mins(), data_comma2space(),
+#           init_hc(), log_hc(), warn()
+#
+# @(#) HISTORY:
+# @(#) 2020-12-21: initial version [Patrick Van der Veken]
+# -----------------------------------------------------------------------------
+# DO NOT CHANGE THIS FILE UNLESS YOU KNOW WHAT YOU ARE DOING!
+#------------------------------------------------------------------------------
+
+# -----------------------------------------------------------------------------
+function check_aix_uptime
+{
+# ------------------------- CONFIGURATION starts here -------------------------
+typeset _CONFIG_FILE="${CONFIG_DIR}/$0.conf"
+typeset _STATE_FILE="${STATE_PERM_DIR}/current.uptime"
+typeset _VERSION="2020-12-21"                           # YYYY-MM-DD
+typeset _SUPPORTED_PLATFORMS="AIX"                      # uname -s match
+# ------------------------- CONFIGURATION ends here ---------------------------
+
+# set defaults
+(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
+init_hc "$0" "${_SUPPORTED_PLATFORMS}" "${_VERSION}"
+typeset _ARGS=$(data_comma2space "$*")
+typeset _ARG=""
+typeset _MSG=""
+typeset _STC=0
+typeset _LOG_HEALTHY=0
+typeset _CFG_HEALTHY=""
+typeset _CFG_CHECK_REBOOT=""
+typeset _CFG_REBOOT_TIME=""
+typeset _CFG_CHECK_OLD_AGE=""
+typeset _CFG_OLD_AGE_TIME=""
+typeset _CHECK_REBOOT=""
+typeset _REBOOT_TIME=""
+typeset _REBOOT_TIME_MINS=""
+typeset _CHECK_OLD_AGE=""
+typeset _OLD_AGE_TIME=""
+typeset _OLD_AGE_TIME_MINS=""
+typeset _CURRENT_UPTIME=""
+typeset _CURRENT_UPTIME_MINS=""
+typeset _INIT_TIME=""
+typeset _PREVIOUS_UPTIME=""
+typeset _PREVIOUS_UPTIME_MINS=""
+typeset _THRESHOLD_UPTIME_MINS=""
+
+# handle arguments (originally comma-separated)
+for _ARG in ${_ARGS}
+do
+    case "${_ARG}" in
+        help)
+            _show_usage "$0" "${_VERSION}" "${_CONFIG_FILE}" && return 0
+            ;;
+    esac
+done
+
+# handle config file
+[[ -n "${ARG_CONFIG_FILE}" ]] && _CONFIG_FILE="${ARG_CONFIG_FILE}"
+if [[ ! -r ${_CONFIG_FILE} ]]
+then
+    warn "unable to read configuration file at ${_CONFIG_FILE}"
+    return 1
+fi
+# read required config values
+_CFG_HEALTHY=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'log_healthy')
+case "${_CFG_HEALTHY}" in
+    yes|YES|Yes)
+        _LOG_HEALTHY=1
+        ;;
+    *)
+        # do not override hc_arg
+        (( _LOG_HEALTHY > 0 )) || _LOG_HEALTHY=0
+        ;;
+esac
+_CFG_CHECK_REBOOT=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'check_reboot')
+case "${_CFG_CHECK_REBOOT}" in
+    no|No|NO)
+        _CHECK_REBOOT=0
+        ;;
+    *)
+        _CHECK_REBOOT=1
+        ;;
+esac
+_CFG_REBOOT_TIME=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'reboot_time')
+if [[ -z "${_CFG_REBOOT_TIME}" ]]
+then
+    # default
+    _REBOOT_TIME="60m"
+else
+    _REBOOT_TIME="${_CFG_REBOOT_TIME}"
+fi
+_CFG_CHECK_OLD_AGE=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'check_old_age')
+case "${_CFG_CHECK_OLD_AGE}" in
+    yes|Yes|Yes)
+        _CHECK_OLD_AGE=1
+        ;;
+    *)
+        _CHECK_OLD_AGE=0
+        ;;
+esac
+_CFG_OLD_AGE_TIME=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'old_age_time')
+if [[ -z "${_CFG_OLD_AGE_TIME}" ]]
+then
+    # default
+    _OLD_AGE_TIME="365d"
+else
+    _OLD_AGE_TIME="${_CFG_OLD_AGE_TIME}"
+fi
+
+# log_healthy
+(( ARG_LOG_HEALTHY > 0 )) && _LOG_HEALTHY=1
+if (( _LOG_HEALTHY > 0 ))
+then
+    if (( ARG_LOG > 0 ))
+    then
+        log "logging/showing passed health checks"
+    else
+        log "showing passed health checks (but not logging)"
+    fi
+else
+    log "not logging/showing passed health checks"
+fi
+
+#------------------------------------------------------------------------------
+# read uptime from init process
+# shellcheck disable=SC1007
+_INIT_TIME=$(UNIX95= ps -p 1 -o etime 2>/dev/null | tail -1)
+if [[ -n "${_INIT_TIME}" ]]
+then
+    # calculate exact uptime (seconds)
+    _CURRENT_UPTIME=$(print "${_INIT_TIME}" |\
+        awk '
+            BEGIN { days = 0; hours = 0; mins = 0; seconds = 0 };
+            {
+                gsub(/[ \t]/, "");
+                # get days
+                split ($0, day_str, "-");
+                if (2 in day_str) {
+                    # string has days
+                    days = day_str[1];
+                    split (day_str[2], hour_str, ":");
+                } else {
+                    split (day_str[1], hour_str, ":");
+                }
+                # get hours/minutes/seconds
+                hours = hour_str[1];
+                mins  = hour_str[2];
+                if (3 in hour_str) {
+                    # string has seconds
+                    secs  = hour_str[3];
+                }
+            }
+            END {
+                time = (days * 24 * 60 * 60) + (hours * 60 * 60) + (mins * 60) + secs;
+                print time;
+            }' 2>/dev/null)
+    data_is_numeric "${_CURRENT_UPTIME}"
+    # shellcheck disable=SC2181
+    if (( $? > 0 ))
+    then
+        warn "unable to calculate uptime value (seconds)"
+        (( ARG_DEBUG )) && debug "_CURRENT_UPTIME=${_CURRENT_UPTIME}"
+        return 1
+    fi
+else
+    warn "uptime of INIT (1) process cannot be determined"
+    return 1
+fi
+
+#------------------------------------------------------------------------------
+# read state file
+if [[ -r ${_STATE_FILE} ]]
+then
+    _PREVIOUS_UPTIME=$(<"${_STATE_FILE}")
+    # shellcheck disable=SC2181
+    if (( $? > 0 ))
+    then
+        warn "failed to read state file at ${_STATE_FILE}"
+        _PREVIOUS_UPTIME=""
+    fi
+fi
+
+#------------------------------------------------------------------------------
+# convert uptimes values
+_CURRENT_UPTIME_MINS=$(( _CURRENT_UPTIME / 60 ))
+data_is_numeric "${_CURRENT_UPTIME_MINS}"
+# shellcheck disable=SC2181
+if (( $? > 0 ))
+then
+    warn "unable to calculate current uptime value (minutes)"
+    (( ARG_DEBUG )) && debug "_CURRENT_UPTIME_MINS=${_CURRENT_UPTIME_MINS}"
+    return 1
+fi
+_PREVIOUS_UPTIME_MINS=$(( _PREVIOUS_UPTIME / 60 ))
+data_is_numeric "${_CURRENT_UPTIME_MINS}"
+# shellcheck disable=SC2181
+if (( $? > 0 ))
+then
+    warn "unable to calculate previous uptime value (minutes)"
+    (( ARG_DEBUG )) && debug "_PREVIOUS_UPTIME_MINS=${_PREVIOUS_UPTIME_MINS}"
+    return 1
+fi
+
+#------------------------------------------------------------------------------
+# check reboot event
+if (( _CHECK_REBOOT > 0 ))
+then
+    # convert _REBOOT_TIME to minutes
+    _REBOOT_TIME_MINS=$(data_timestring_to_mins "${_REBOOT_TIME}")
+    data_is_numeric "${_REBOOT_TIME_MINS}"
+    # shellcheck disable=SC2181
+    if (( $? > 0 ))
+    then
+        warn "unable to calculate 'reboot_time' value from configuration file ${_CONFIG_FILE}"
+        (( ARG_DEBUG )) && debug "_REBOOT_TIME=${_REBOOT_TIME}"
+        return 1
+    fi
+
+    # previous uptime missing?
+    if [[ -z "${_PREVIOUS_UPTIME}" ]]
+    then
+        if (( ARG_LOG > 0 ))
+        then
+            print "${_CURRENT_UPTIME}" >"${_STATE_FILE}"
+            # shellcheck disable=SC2181
+            if (( $? > 0 ))
+            then
+                warn "failed to update state file at ${_STATE_FILE}"
+                return 1
+            else
+                log "unable to find previously recorded uptime, resetting to current uptime"
+                return 0
+            fi
+        else
+            log "unable to find previously recorded uptime, resetting to current uptime"
+        fi
+    else
+        # current uptime + reboot time is smaller than previous uptime?
+        _THRESHOLD_UPTIME_MINS=$(( _CURRENT_UPTIME_MINS + _REBOOT_TIME_MINS ))
+        if (( _THRESHOLD_UPTIME_MINS < _PREVIOUS_UPTIME_MINS ))
+        then
+            _MSG="reboot check: current uptime is NOK; check if reboot occurred"
+            _STC=1
+        else
+            _MSG="reboot check: current uptime is OK"
+            _STC=0
+        fi
+    fi
+    if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+    then
+        log_hc "$0" ${_STC} "${_MSG}" "${_THRESHOLD_UPTIME_MINS}" "${_PREVIOUS_UPTIME_MINS}"
+    fi
+
+    # update state file
+    if (( ARG_LOG > 0 ))
+    then
+        print "${_CURRENT_UPTIME}" >"${_STATE_FILE}"
+        # shellcheck disable=SC2181
+        if (( $? > 0 ))
+        then
+            warn "failed to update state file at ${_STATE_FILE}"
+            return 1
+        fi
+    fi
+else
+    log "reboot check: not enabled"
+fi
+
+#------------------------------------------------------------------------------
+# check old age event
+if (( _CHECK_OLD_AGE > 0 ))
+then
+    # convert _OLD_AGE_TIME to minutes
+    _OLD_AGE_TIME_MINS=$(data_timestring_to_mins "${_OLD_AGE_TIME}")
+    data_is_numeric "${_OLD_AGE_TIME_MINS}"
+    # shellcheck disable=SC2181
+    if (( $? > 0 ))
+    then
+        warn "unable to calculate 'old_age_time' value from configuration file ${_CONFIG_FILE}"
+        (( ARG_DEBUG )) && debug "_OLD_AGE_TIME=${_OLD_AGE_TIME}"
+        return 1
+    fi
+
+    # are we old age yet?
+    if (( _CURRENT_UPTIME_MINS > _OLD_AGE_TIME_MINS ))
+    then
+        _MSG="old_age check: current uptime is NOK; old age has arrived (>${_OLD_AGE_TIME})"
+        _STC=1
+    else
+        _MSG="old_age check: current uptime is OK"
+        _STC=0
+    fi
+    if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+    then
+        log_hc "$0" ${_STC} "${_MSG}" "${_CURRENT_UPTIME_MINS}" "${_OLD_AGE_TIME_MINS}"
+    fi
+else
+    log "old age check: not enabled"
+fi
+
+return 0
+}
+
+# -----------------------------------------------------------------------------
+function _show_usage
+{
+cat <<- EOT
+NAME        : $1
+VERSION     : $2
+CONFIG      : $3 with:
+               log_healthy=<yes|no>
+               check_reboot=<yes|no>
+               reboot_time=<timestring>
+               check_old_age=<yes|no>
+               old_age_time=<timestring>
+PURPOSE     : Checks for unexpected/unplanned reboot events based on uptime
+               values.
+              Checks whether the host has been up and running for too much time.
+LOG HEALTHY : Supported
+
+EOT
+
+return 0
+}
+
+
+#------------------------------------------------------------------------------
+# END of script
+#------------------------------------------------------------------------------

opt/hc/lib/platform/hp-ux/check_hpux_ntp_status.sh

@@ -30,6 +30,7 @@
 # @(#)             with offset calculation [Patrick Van der Veken]
 # @(#) 2019-01-24: arguments fix [Patrick Van der Veken]
 # @(#) 2019-03-09: Text updates [Patrick Van der Veken]
+# @(#) 2020-12-21: fixes for --log-healthy [Patrick Van der Veken]
 # -----------------------------------------------------------------------------
 # DO NOT CHANGE THIS FILE UNLESS YOU KNOW WHAT YOU ARE DOING!
 #------------------------------------------------------------------------------
@@ -39,14 +40,14 @@ function check_hpux_ntp_status
 {
 # ------------------------- CONFIGURATION starts here -------------------------
 typeset _CONFIG_FILE="${CONFIG_DIR}/$0.conf"
-typeset _VERSION="2019-03-09"                           # YYYY-MM-DD
+typeset _VERSION="2020-12-21"                           # YYYY-MM-DD
 typeset _SUPPORTED_PLATFORMS="HP-UX"                    # uname -s match
 typeset _NTPQ_BIN="/usr/sbin/ntpq"
 typeset _NTPQ_OPTS="-pn"
 # ------------------------- CONFIGURATION ends here ---------------------------
 
 # set defaults
-(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set ${DEBUG_OPTS}
+(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
 init_hc "$0" "${_SUPPORTED_PLATFORMS}" "${_VERSION}"
 typeset _ARGS=$(data_comma2space "$*")
 typeset _ARG=""
@@ -65,7 +66,7 @@ for _ARG in ${_ARGS}
 do
     case "${_ARG}" in
         help)
-            _show_usage $0 ${_VERSION} ${_CONFIG_FILE} && return 0
+            _show_usage "$0" "${_VERSION}" "${_CONFIG_FILE}" && return 0
             ;;
     esac
 done
@@ -148,7 +149,10 @@ case "${_NTP_PEER}" in
         _MSG="NTP is synchronizing against ${_NTP_PEER##*\*}"
         ;;
 esac
-log_hc "$0" ${_STC} "${_MSG}"
+if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+then
+    log_hc "$0" ${_STC} "${_MSG}"
+fi
 
 # 2) offset value
 if (( _STC == 0 ))
@@ -165,7 +169,10 @@ then
             else
                 _MSG="NTP offset of ${_CURR_OFFSET} is within the acceptable range"
             fi
-            log_hc "$0" ${_STC} "${_MSG}"
+            if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+            then
+                log_hc "$0" ${_STC} "${_MSG}"
+            fi
             ;;
         *)
             # not numeric

opt/hc/lib/platform/hp-ux/check_hpux_postfix_status.sh

@@ -26,6 +26,7 @@
 # @(#) 2019-01-24: arguments fix [Patrick Van der Veken]
 # @(#) 2019-03-09: added support for --log-healthy [Patrick Van der Veken]
 # @(#) 2019-03-16: replace 'which' [Patrick Van der Veken]
+# @(#) 2020-12-27: add configuration check + quoting fixes [Patrick Van der Veken]
 # -----------------------------------------------------------------------------
 # DO NOT CHANGE THIS FILE UNLESS YOU KNOW WHAT YOU ARE DOING!
 #******************************************************************************
@@ -34,16 +35,17 @@
 function check_hpux_postfix_status
 {
 # ------------------------- CONFIGURATION starts here -------------------------
-typeset _VERSION="2019-03-09"                           # YYYY-MM-DD
+typeset _VERSION="2020-12-27"                           # YYYY-MM-DD
 typeset _SUPPORTED_PLATFORMS="HP-UX"                    # uname -s match
 # ------------------------- CONFIGURATION ends here ---------------------------
 
 # set defaults
-(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set ${DEBUG_OPTS}
+(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
 init_hc "$0" "${_SUPPORTED_PLATFORMS}" "${_VERSION}"
 typeset _ARGS=$(data_comma2space "$*")
 typeset _ARG=""
 typeset _POSTFIX_BIN=""
+typeset _POSTFIX_CHECKER=""
 typeset _MSG=""
 typeset _STC=0
 typeset _LOG_HEALTHY=0
@@ -53,7 +55,7 @@ for _ARG in ${_ARGS}
 do
     case "${_ARG}" in
         help)
-            _show_usage $0 ${_VERSION} ${_CONFIG_FILE} && return 0
+            _show_usage "$0" "${_VERSION}" "${_CONFIG_FILE}" && return 0
             ;;
     esac
 done
@@ -72,10 +74,14 @@ else
     log "not logging/showing passed health checks"
 fi
 
+#-------------------------------------------------------------------------------
+# process state
+
 _POSTFIX_BIN="$(command -v postfix 2>>${HC_STDERR_LOG})"
 if [[ -x ${_POSTFIX_BIN} && -n "${_POSTFIX_BIN}" ]]
 then
-    ${_POSTFIX_BIN} status >>${HC_STDOUT_LOG} 2>>${HC_STDERR_LOG}
+    ${_POSTFIX_BIN} status >>"${HC_STDOUT_LOG}" 2>>"${HC_STDERR_LOG}"
+    # shellcheck disable=SC2181
     if (( $? == 0 ))
     then
         _MSG="postfix is running"
@@ -87,13 +93,35 @@ else
     warn "postfix is not installed here"
     return 1
 fi
-
-# report result
 if (( _LOG_HEALTHY > 0 || _STC > 0 ))
 then
     log_hc "$0" ${_STC} "${_MSG}"
 fi
 
+#-------------------------------------------------------------------------------
+# configuration state
+_POSTFIX_CHECKER="$(command -v postconf 2>>${HC_STDERR_LOG})"
+if [[ -x ${_POSTFIX_CHECKER} && -n "${_POSTFIX_CHECKER}" ]]
+then
+    # dump configuration
+    ${_POSTFIX_CHECKER} -n >>"${HC_STDOUT_LOG}" 2>>"${HC_STDERR_LOG}"
+    # shellcheck disable=SC2181
+    if (( $? > 0 ))
+    then
+        _MSG="postfix configuration files have syntax error(s) {${_POSTFIX_CHECKER} -n}"
+        _STC=1
+    else
+        _MSG="postfix configuration files are syntactically correct"
+        _STC=0
+    fi
+    if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+    then
+        log_hc "$0" ${_STC} "${_MSG}"
+    fi
+else
+    warn "skipping syntax check (unable to find syntax check tool)"
+fi
+
 return 0
 }
 
@@ -103,7 +131,8 @@ function _show_usage
 cat <<- EOT
 NAME        : $1
 VERSION     : $2
-PURPOSE     : Checks whether postfix (mail system) is running
+PURPOSE     : Checks whether postfix (mail system) is running and whether the
+              postfix configuration files are syntactically correct
 LOG HEALTHY : Supported
 
 EOT

opt/hc/lib/platform/hp-ux/check_hpux_uptime.sh

@@ -0,0 +1,349 @@
+#!/usr/bin/env ksh
+#------------------------------------------------------------------------------
+# @(#) check_hpux_uptime
+#------------------------------------------------------------------------------
+# @(#) Copyright (C) 2020 by KUDOS BVBA (info@kudos.be).  All rights reserved.
+#
+# This program is a free software; you can redistribute it and/or modify
+# it under the same terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details
+#------------------------------------------------------------------------------
+#
+# DOCUMENTATION (MAIN)
+# -----------------------------------------------------------------------------
+# @(#) MAIN: check_hpux_uptime
+# DOES: see _show_usage()
+# EXPECTS: see _show_usage()
+# REQUIRES: data_is_numeric(), data_timestring_to_mins(), data_comma2space(),
+#           init_hc(), log_hc(), warn()
+#
+# @(#) HISTORY:
+# @(#) 2020-12-21: initial version [Patrick Van der Veken]
+# -----------------------------------------------------------------------------
+# DO NOT CHANGE THIS FILE UNLESS YOU KNOW WHAT YOU ARE DOING!
+#------------------------------------------------------------------------------
+
+# -----------------------------------------------------------------------------
+function check_hpux_uptime
+{
+# ------------------------- CONFIGURATION starts here -------------------------
+typeset _CONFIG_FILE="${CONFIG_DIR}/$0.conf"
+typeset _STATE_FILE="${STATE_PERM_DIR}/current.uptime"
+typeset _VERSION="2020-12-21"                           # YYYY-MM-DD
+typeset _SUPPORTED_PLATFORMS="HP-UX"                    # uname -s match
+# ------------------------- CONFIGURATION ends here ---------------------------
+
+# set defaults
+(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
+init_hc "$0" "${_SUPPORTED_PLATFORMS}" "${_VERSION}"
+typeset _ARGS=$(data_comma2space "$*")
+typeset _ARG=""
+typeset _MSG=""
+typeset _STC=0
+typeset _LOG_HEALTHY=0
+typeset _CFG_HEALTHY=""
+typeset _CFG_CHECK_REBOOT=""
+typeset _CFG_REBOOT_TIME=""
+typeset _CFG_CHECK_OLD_AGE=""
+typeset _CFG_OLD_AGE_TIME=""
+typeset _CHECK_REBOOT=""
+typeset _REBOOT_TIME=""
+typeset _REBOOT_TIME_MINS=""
+typeset _CHECK_OLD_AGE=""
+typeset _OLD_AGE_TIME=""
+typeset _OLD_AGE_TIME_MINS=""
+typeset _CURRENT_UPTIME=""
+typeset _CURRENT_UPTIME_MINS=""
+typeset _INIT_TIME=""
+typeset _PREVIOUS_UPTIME=""
+typeset _PREVIOUS_UPTIME_MINS=""
+typeset _THRESHOLD_UPTIME_MINS=""
+
+# handle arguments (originally comma-separated)
+for _ARG in ${_ARGS}
+do
+    case "${_ARG}" in
+        help)
+            _show_usage "$0" "${_VERSION}" "${_CONFIG_FILE}" && return 0
+            ;;
+    esac
+done
+
+# handle config file
+[[ -n "${ARG_CONFIG_FILE}" ]] && _CONFIG_FILE="${ARG_CONFIG_FILE}"
+if [[ ! -r ${_CONFIG_FILE} ]]
+then
+    warn "unable to read configuration file at ${_CONFIG_FILE}"
+    return 1
+fi
+# read required config values
+_CFG_HEALTHY=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'log_healthy')
+case "${_CFG_HEALTHY}" in
+    yes|YES|Yes)
+        _LOG_HEALTHY=1
+        ;;
+    *)
+        # do not override hc_arg
+        (( _LOG_HEALTHY > 0 )) || _LOG_HEALTHY=0
+        ;;
+esac
+_CFG_CHECK_REBOOT=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'check_reboot')
+case "${_CFG_CHECK_REBOOT}" in
+    no|No|NO)
+        _CHECK_REBOOT=0
+        ;;
+    *)
+        _CHECK_REBOOT=1
+        ;;
+esac
+_CFG_REBOOT_TIME=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'reboot_time')
+if [[ -z "${_CFG_REBOOT_TIME}" ]]
+then
+    # default
+    _REBOOT_TIME="60m"
+else
+    _REBOOT_TIME="${_CFG_REBOOT_TIME}"
+fi
+_CFG_CHECK_OLD_AGE=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'check_old_age')
+case "${_CFG_CHECK_OLD_AGE}" in
+    yes|Yes|Yes)
+        _CHECK_OLD_AGE=1
+        ;;
+    *)
+        _CHECK_OLD_AGE=0
+        ;;
+esac
+_CFG_OLD_AGE_TIME=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'old_age_time')
+if [[ -z "${_CFG_OLD_AGE_TIME}" ]]
+then
+    # default
+    _OLD_AGE_TIME="365d"
+else
+    _OLD_AGE_TIME="${_CFG_OLD_AGE_TIME}"
+fi
+
+# log_healthy
+(( ARG_LOG_HEALTHY > 0 )) && _LOG_HEALTHY=1
+if (( _LOG_HEALTHY > 0 ))
+then
+    if (( ARG_LOG > 0 ))
+    then
+        log "logging/showing passed health checks"
+    else
+        log "showing passed health checks (but not logging)"
+    fi
+else
+    log "not logging/showing passed health checks"
+fi
+
+#------------------------------------------------------------------------------
+# read uptime from init process
+# shellcheck disable=SC1007
+_INIT_TIME=$(UNIX95= ps -p 1 -o etime 2>/dev/null | tail -1)
+if [[ -n "${_INIT_TIME}" ]]
+then
+    # calculate exact uptime (seconds)
+    _CURRENT_UPTIME=$(print "${_INIT_TIME}" |\
+        awk '
+            BEGIN { days = 0; hours = 0; mins = 0; seconds = 0 };
+            {
+                gsub(/[ \t]/, "");
+                # get days
+                split ($0, day_str, "-");
+                if (2 in day_str) {
+                    # string has days
+                    days = day_str[1];
+                    split (day_str[2], hour_str, ":");
+                } else {
+                    split (day_str[1], hour_str, ":");
+                }
+                # get hours/minutes/seconds
+                hours = hour_str[1];
+                mins  = hour_str[2];
+                if (3 in hour_str) {
+                    # string has seconds
+                    secs  = hour_str[3];
+                }
+            }
+            END {
+                time = (days * 24 * 60 * 60) + (hours * 60 * 60) + (mins * 60) + secs;
+                print time;
+            }' 2>/dev/null)
+    data_is_numeric "${_CURRENT_UPTIME}"
+    # shellcheck disable=SC2181
+    if (( $? > 0 ))
+    then
+        warn "unable to calculate uptime value (seconds)"
+        (( ARG_DEBUG )) && debug "_CURRENT_UPTIME=${_CURRENT_UPTIME}"
+        return 1
+    fi
+else
+    warn "uptime of INIT (1) process cannot be determined"
+    return 1
+fi
+
+#------------------------------------------------------------------------------
+# read state file
+if [[ -r ${_STATE_FILE} ]]
+then
+    _PREVIOUS_UPTIME=$(<"${_STATE_FILE}")
+    # shellcheck disable=SC2181
+    if (( $? > 0 ))
+    then
+        warn "failed to read state file at ${_STATE_FILE}"
+        _PREVIOUS_UPTIME=""
+    fi
+fi
+
+#------------------------------------------------------------------------------
+# convert uptimes values
+_CURRENT_UPTIME_MINS=$(( _CURRENT_UPTIME / 60 ))
+data_is_numeric "${_CURRENT_UPTIME_MINS}"
+# shellcheck disable=SC2181
+if (( $? > 0 ))
+then
+    warn "unable to calculate current uptime value (minutes)"
+    (( ARG_DEBUG )) && debug "_CURRENT_UPTIME_MINS=${_CURRENT_UPTIME_MINS}"
+    return 1
+fi
+_PREVIOUS_UPTIME_MINS=$(( _PREVIOUS_UPTIME / 60 ))
+data_is_numeric "${_CURRENT_UPTIME_MINS}"
+# shellcheck disable=SC2181
+if (( $? > 0 ))
+then
+    warn "unable to calculate previous uptime value (minutes)"
+    (( ARG_DEBUG )) && debug "_PREVIOUS_UPTIME_MINS=${_PREVIOUS_UPTIME_MINS}"
+    return 1
+fi
+
+#------------------------------------------------------------------------------
+# check reboot event
+if (( _CHECK_REBOOT > 0 ))
+then
+    # convert _REBOOT_TIME to minutes
+    _REBOOT_TIME_MINS=$(data_timestring_to_mins "${_REBOOT_TIME}")
+    data_is_numeric "${_REBOOT_TIME_MINS}"
+    # shellcheck disable=SC2181
+    if (( $? > 0 ))
+    then
+        warn "unable to calculate 'reboot_time' value from configuration file ${_CONFIG_FILE}"
+        (( ARG_DEBUG )) && debug "_REBOOT_TIME=${_REBOOT_TIME}"
+        return 1
+    fi
+
+    # previous uptime missing?
+    if [[ -z "${_PREVIOUS_UPTIME}" ]]
+    then
+        if (( ARG_LOG > 0 ))
+        then
+            print "${_CURRENT_UPTIME}" >"${_STATE_FILE}"
+            # shellcheck disable=SC2181
+            if (( $? > 0 ))
+            then
+                warn "failed to update state file at ${_STATE_FILE}"
+                return 1
+            else
+                log "unable to find previously recorded uptime, resetting to current uptime"
+                return 0
+            fi
+        else
+            log "unable to find previously recorded uptime, resetting to current uptime"
+        fi
+    else
+        # current uptime + reboot time is smaller than previous uptime?
+        _THRESHOLD_UPTIME_MINS=$(( _CURRENT_UPTIME_MINS + _REBOOT_TIME_MINS ))
+        if (( _THRESHOLD_UPTIME_MINS < _PREVIOUS_UPTIME_MINS ))
+        then
+            _MSG="reboot check: current uptime is NOK; check if reboot occurred"
+            _STC=1
+        else
+            _MSG="reboot check: current uptime is OK"
+            _STC=0
+        fi
+    fi
+    if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+    then
+        log_hc "$0" ${_STC} "${_MSG}" "${_THRESHOLD_UPTIME_MINS}" "${_PREVIOUS_UPTIME_MINS}"
+    fi
+
+    # update state file
+    if (( ARG_LOG > 0 ))
+    then
+        print "${_CURRENT_UPTIME}" >"${_STATE_FILE}"
+        # shellcheck disable=SC2181
+        if (( $? > 0 ))
+        then
+            warn "failed to update state file at ${_STATE_FILE}"
+            return 1
+        fi
+    fi
+else
+    log "reboot check: not enabled"
+fi
+
+#------------------------------------------------------------------------------
+# check old age event
+if (( _CHECK_OLD_AGE > 0 ))
+then
+    # convert _OLD_AGE_TIME to minutes
+    _OLD_AGE_TIME_MINS=$(data_timestring_to_mins "${_OLD_AGE_TIME}")
+    data_is_numeric "${_OLD_AGE_TIME_MINS}"
+    # shellcheck disable=SC2181
+    if (( $? > 0 ))
+    then
+        warn "unable to calculate 'old_age_time' value from configuration file ${_CONFIG_FILE}"
+        (( ARG_DEBUG )) && debug "_OLD_AGE_TIME=${_OLD_AGE_TIME}"
+        return 1
+    fi
+
+    # are we old age yet?
+    if (( _CURRENT_UPTIME_MINS > _OLD_AGE_TIME_MINS ))
+    then
+        _MSG="old_age check: current uptime is NOK; old age has arrived (>${_OLD_AGE_TIME})"
+        _STC=1
+    else
+        _MSG="old_age check: current uptime is OK"
+        _STC=0
+    fi
+    if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+    then
+        log_hc "$0" ${_STC} "${_MSG}" "${_CURRENT_UPTIME_MINS}" "${_OLD_AGE_TIME_MINS}"
+    fi
+else
+    log "old age check: not enabled"
+fi
+
+return 0
+}
+
+# -----------------------------------------------------------------------------
+function _show_usage
+{
+cat <<- EOT
+NAME        : $1
+VERSION     : $2
+CONFIG      : $3 with:
+               log_healthy=<yes|no>
+               check_reboot=<yes|no>
+               reboot_time=<timestring>
+               check_old_age=<yes|no>
+               old_age_time=<timestring>
+PURPOSE     : Checks for unexpected/unplanned reboot events based on uptime
+               values.
+              Checks whether the host has been up and running for too much time.
+LOG HEALTHY : Supported
+
+EOT
+
+return 0
+}
+
+
+#------------------------------------------------------------------------------
+# END of script
+#------------------------------------------------------------------------------

opt/hc/lib/platform/linux/check_linux_dovecot_status.sh

@@ -0,0 +1,209 @@
+#!/usr/bin/env ksh
+#******************************************************************************
+# @(#) check_linux_dovecot_status.sh
+#******************************************************************************
+# @(#) Copyright (C) 2020 by KUDOS BVBA (info@kudos.be).  All rights reserved.
+#
+# This program is a free software; you can redistribute it and/or modify
+# it under the same terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details
+#******************************************************************************
+#
+# DOCUMENTATION (MAIN)
+# -----------------------------------------------------------------------------
+# @(#) MAIN: check_linux_dovecot_status
+# DOES: see _show_usage()
+# EXPECTS: n/a
+# REQUIRES: data_comma2space(), linux_get_init(), init_hc(), log_hc(), warn()
+#
+# @(#) HISTORY:
+# @(#) 2020-12-27: initial version [Patrick Van der Veken]
+# -----------------------------------------------------------------------------
+# DO NOT CHANGE THIS FILE UNLESS YOU KNOW WHAT YOU ARE DOING!
+#******************************************************************************
+
+# -----------------------------------------------------------------------------
+function check_linux_dovecot_status
+{
+# ------------------------- CONFIGURATION starts here -------------------------
+typeset _DOVECOT_INIT_SCRIPT="/etc/init.d/dovecot"
+typeset _DOVECOT_SYSTEMD_SERVICE="dovecot.service"
+typeset _VERSION="2020-12-27"                           # YYYY-MM-DD
+typeset _SUPPORTED_PLATFORMS="Linux"                    # uname -s match
+# ------------------------- CONFIGURATION ends here ---------------------------
+
+# set defaults
+(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
+init_hc "$0" "${_SUPPORTED_PLATFORMS}" "${_VERSION}"
+typeset _ARGS=$(data_comma2space "$*")
+typeset _ARG=""
+typeset _DOVECOT_BIN=""
+typeset _DOVECOT_CHECKER=""
+typeset _MSG=""
+typeset _STC=0
+typeset _LOG_HEALTHY=0
+typeset _RC=0
+typeset _CHECK_SYSTEMD_SERVICE=0
+
+# handle arguments (originally comma-separated)
+for _ARG in ${_ARGS}
+do
+    case "${_ARG}" in
+        help)
+            _show_usage "$0" "${_VERSION}" "${_CONFIG_FILE}" && return 0
+            ;;
+    esac
+done
+
+# log_healthy
+(( ARG_LOG_HEALTHY > 0 )) && _LOG_HEALTHY=1
+if (( _LOG_HEALTHY > 0 ))
+then
+    if (( ARG_LOG > 0 ))
+    then
+        log "logging/showing passed health checks"
+    else
+        log "showing passed health checks (but not logging)"
+    fi
+else
+    log "not logging/showing passed health checks"
+fi
+
+#-------------------------------------------------------------------------------
+# process state
+
+# 1) try using the init ways
+linux_get_init
+case "${LINUX_INIT}" in
+    'systemd')
+        # Debian8/Ubuntu16 do not correctly report a unit file for dovecot,
+        # do not check for it and instead just query systemd service
+        linux_get_distro
+        if [[ "${LINUX_DISTRO}" = "Debian" ]] && (( ${LINUX_RELEASE%%.*} < 9 ))
+        then
+            _CHECK_SYSTEMD_SERVICE=1
+        elif [[ "${LINUX_DISTRO}" = "Ubuntu" ]] && (( ${LINUX_RELEASE%%.*} < 17 ))
+        then
+            _CHECK_SYSTEMD_SERVICE=1
+        else
+            _CHECK_SYSTEMD_SERVICE=$(linux_has_systemd_service "${_DOVECOT_SYSTEMD_SERVICE}")
+        fi
+        if (( _CHECK_SYSTEMD_SERVICE > 0 ))
+        then
+            systemctl --quiet is-active ${_DOVECOT_SYSTEMD_SERVICE} 2>>"${HC_STDERR_LOG}" || _STC=1
+        else
+            warn "systemd unit file not found {${_DOVECOT_SYSTEMD_SERVICE}}"
+            _RC=1
+        fi
+        ;;
+    'upstart')
+        warn "code for upstart managed systems not implemented, NOOP"
+        _RC=1
+        ;;
+    'sysv')
+        # check running SysV
+        if [[ -x ${_DOVECOT_INIT_SCRIPT} ]]
+        then
+            if (( $(${_DOVECOT_INIT_SCRIPT} status 2>>"${HC_STDERR_LOG}" | grep -c -i 'is running' 2>/dev/null) == 0 ))
+            then
+                _STC=1
+            fi
+        else
+            warn "sysv init script not found {${_DOVECOT_INIT_SCRIPT}}"
+            _RC=1
+        fi
+        ;;
+    *)
+        _RC=1
+        ;;
+esac
+
+# 2) try the dovecot way
+if (( _RC > 0 ))
+then
+    _DOVECOT_BIN="$(command -v dovecot 2>>${HC_STDERR_LOG})"
+    if [[ -x ${_DOVECOT_BIN} && -n "${_DOVECOT_BIN}" ]]
+    then
+        if (( $(${_DOVECOT_BIN} status 2>>"${HC_STDERR_LOG}" | grep -c -i 'is running' 2>/dev/null) == 0 ))
+        then
+            _RC=1
+        fi
+    else
+        warn "dovecot is not installed here"
+        return 1
+    fi
+fi
+
+# 3) try the pgrep way (note: old pgreps do not support '-c')
+if (( _RC > 0 ))
+then
+    (( $(pgrep -u dovecot 2>>"${HC_STDERR_LOG}" | wc -l 2>/dev/null) == 0 )) && _STC=1
+fi
+
+# evaluate results
+case ${_STC} in
+    0)
+        _MSG="dovecot is running"
+        ;;
+    1)
+        _MSG="dovecot is not running"
+        ;;
+    *)
+        _MSG="could not determine status of dovecot"
+        ;;
+esac
+if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+then
+    log_hc "$0" ${_STC} "${_MSG}"
+fi
+
+#-------------------------------------------------------------------------------
+# configuration state
+_DOVECOT_CHECKER="$(command -v doveconf 2>>${HC_STDERR_LOG})"
+if [[ -x ${_DOVECOT_CHECKER} && -n "${_DOVECOT_CHECKER}" ]]
+then
+    # dump configuration
+    ${_DOVECOT_CHECKER} -n >>"${HC_STDOUT_LOG}" 2>>"${HC_STDERR_LOG}"
+    # shellcheck disable=SC2181
+    if (( $? > 0 ))
+    then
+        _MSG="dovecot configuration files have syntax error(s) {${_DOVECOT_CHECKER} -n}"
+        _STC=1
+    else
+        _MSG="dovecot configuration files are syntactically correct"
+        _STC=0
+    fi
+    if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+    then
+        log_hc "$0" ${_STC} "${_MSG}"
+    fi
+else
+    warn "skipping syntax check (unable to find syntax check tool)"
+fi
+
+return 0
+}
+
+# -----------------------------------------------------------------------------
+function _show_usage
+{
+cat <<- EOT
+NAME        : $1
+VERSION     : $2
+PURPOSE     : Checks whether dovecot (mail system) is running and whether the
+              dovecot configuration files are syntactically correct
+LOG HEALTHY : Supported
+
+EOT
+
+return 0
+}
+
+#******************************************************************************
+# END of script
+#******************************************************************************

opt/hc/lib/platform/linux/check_linux_fetchmail_status.sh

@@ -0,0 +1,319 @@
+#!/usr/bin/env ksh
+#******************************************************************************
+# @(#) check_linux_fetchmail_status.sh
+#******************************************************************************
+# @(#) Copyright (C) 2020 by KUDOS BVBA (info@kudos.be).  All rights reserved.
+#
+# This program is a free software; you can redistribute it and/or modify
+# it under the same terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details
+#******************************************************************************
+#
+# DOCUMENTATION (MAIN)
+# -----------------------------------------------------------------------------
+# @(#) MAIN: check_linux_fetchmail_status
+# DOES: see _show_usage()
+# EXPECTS: n/a
+# REQUIRES: data_comma2space(), init_hc(), log_hc(), warn')
+#
+# @(#) HISTORY:
+# @(#) 2016-12-26: initial version [Patrick Van der Veken]
+# -----------------------------------------------------------------------------
+# DO NOT CHANGE THIS FILE UNLESS YOU KNOW WHAT YOU ARE DOING!
+#******************************************************************************
+
+# -----------------------------------------------------------------------------
+function check_linux_fetchmail_status
+{
+# ------------------------- CONFIGURATION starts here -------------------------
+typeset _CONFIG_FILE="${CONFIG_DIR}/$0.conf"
+typeset _VERSION="2020-12-26"                           # YYYY-MM-DD
+typeset _SUPPORTED_PLATFORMS="Linux"                    # uname -s match
+# ------------------------- CONFIGURATION ends here ---------------------------
+
+# set defaults
+(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
+init_hc "$0" "${_SUPPORTED_PLATFORMS}" "${_VERSION}"
+typeset _ARGS=$(data_comma2space "$*")
+typeset _ARG=""
+typeset _MSG=""
+typeset _STC=0
+typeset _LOG_HEALTHY=0
+typeset _CFG_HEALTHY=""
+typeset _CFG_ERROR_REGEX=""
+typeset _ERROR_REGEX=""
+typeset _CFG_ACCOUNT=""
+typeset _CFG_RC_FILE=""
+typeset _CFG_CHECK_LOG=""
+typeset _OPENSSL_BIN=""
+typeset _MD5SUM_BIN=""
+typeset _HAS_OPENSSL=0
+typeset _HAS_MD5SUM=0
+typeset _USE_OPENSSL=0
+typeset _USE_MD5SUM=0
+typeset _DO_LOG=0
+typeset _LOG_FILE=""
+typeset _HASH_FILE_NAME=""
+typeset _STATE_FILE=""
+typeset _LAST_POINTER=""
+typeset _NEW_LAST_POINTER=""
+typeset _LOG_COUNT=""
+typeset _LINE_NR=""
+typeset _LINE_TEXT=""
+
+# handle arguments (originally comma-separated)
+for _ARG in ${_ARGS}
+do
+    case "${_ARG}" in
+        help)
+            _show_usage "$0" "${_VERSION}" "${_CONFIG_FILE}" && return 0
+            ;;
+    esac
+done
+
+# handle config file
+[[ -n "${ARG_CONFIG_FILE}" ]] && _CONFIG_FILE="${ARG_CONFIG_FILE}"
+if [[ ! -r ${_CONFIG_FILE} ]]
+then
+    warn "unable to read configuration file at ${_CONFIG_FILE}"
+    return 1
+fi
+# read required config values
+_CFG_ERROR_REGEX=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'error_regex')
+if [[ -n "${_CFG_ERROR_REGEX}" ]]
+then
+    _ERROR_REGEX="${_CFG_ERROR_REGEX}"
+else
+    _ERROR_REGEX="error|authfail|lockbusy|ioerr"
+    (( ARG_DEBUG > 0 )) && debug "setting error_regex to default value: ${_ERROR_REGEX}"
+fi
+_CFG_HEALTHY=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'log_healthy')
+case "${_CFG_HEALTHY}" in
+    yes|YES|Yes)
+        _LOG_HEALTHY=1
+        ;;
+    *)
+        # do not override hc_arg
+        (( _LOG_HEALTHY > 0 )) || _LOG_HEALTHY=0
+        ;;
+esac
+
+# log_healthy
+(( ARG_LOG_HEALTHY > 0 )) && _LOG_HEALTHY=1
+if (( _LOG_HEALTHY > 0 ))
+then
+    if (( ARG_LOG > 0 ))
+    then
+        log "logging/showing passed health checks"
+    else
+        log "showing passed health checks (but not logging)"
+    fi
+else
+    log "not logging/showing passed health checks"
+fi
+
+#-------------------------------------------------------------------------------
+# check for auxiliary tools
+_OPENSSL_BIN="$(command -v openssl 2>>${HC_STDERR_LOG})"
+[[ -x ${_OPENSSL_BIN} && -n "${_OPENSSL_BIN}" ]] && _HAS_OPENSSL=1
+_MD5SUM_BIN="$(command -v md5sum 2>>${HC_STDERR_LOG})"
+[[ -x ${_MD5SUM_BIN} && -n "${_MD5SUM_BIN}" ]] && _HAS_MD5SUM=1
+# prefer openssl
+if (( _HAS_OPENSSL == 1 ))
+then
+    _USE_OPENSSL=1
+elif (( _HAS_MD5SUM == 1 ))
+then
+    _USE_MD5SUM=1
+else
+    warn "unable to find the 'openssl/md5sum' tools, will not do fetchmail log checking"
+    return 1
+fi
+
+#-------------------------------------------------------------------------------
+# perform check(s)
+grep -E -e "^fetchmail:" "${_CONFIG_FILE}" 2>/dev/null | while IFS=":" read -r _ _CFG_ACCOUNT _CFG_RC_FILE _CFG_CHECK_LOG
+do
+    _STC=0
+
+    # check config
+    if [[ -z "${_CFG_ACCOUNT}" ]] && [[ -z "${_CFG_RC_FILE}" ]]
+    then
+        warn "missing values in configuration file at ${_CONFIG_FILE}"
+        return 1
+    fi
+
+    # check if account exists
+    id "${_CFG_ACCOUNT}" >/dev/null 2>/dev/null || {
+        warn "account ${_CFG_ACCOUNT} does not exist on host, skipping"
+        continue
+    }
+
+    # check if fetchmailrc file exists
+    [[ -r "${_CFG_RC_FILE}" ]] || {
+        warn "unable to read fetchmailrc file at ${_CFG_RC_FILE} for account ${_CFG_ACCOUNT}, skipping"
+        continue
+    }
+
+    # get process details
+    (( $(pgrep -u "${_CFG_ACCOUNT}" -f "fetchmail.*${_CFG_RC_FILE}" | wc -l 2>/dev/null) == 0 )) && _STC=1
+
+    # evaluate results
+    case ${_STC} in
+        0)
+            _MSG="fetchmail is running for account ${_CFG_ACCOUNT} (${_CFG_RC_FILE})"
+            ;;
+        1)
+            _MSG="fetchmail is not running for account ${_CFG_ACCOUNT} (${_CFG_RC_FILE})"
+            ;;
+        *)
+            _MSG="could not determine status of fetchmail for account ${_CFG_ACCOUNT} (${_CFG_RC_FILE})"
+            ;;
+    esac
+    if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+    then
+        log_hc "$0" ${_STC} "${_MSG}"
+    fi
+
+    # check log?
+    case "${_CFG_CHECK_LOG}" in
+        Yes|YES|yes)
+            (( ARG_DEBUG > 0 )) && debug "doing log check for account ${_CFG_ACCOUNT} (${_CFG_RC_FILE})"
+            _DO_LOG=1;
+            ;;
+        *)
+            log "skipping fetchmail log check for account ${_CFG_ACCOUNT} (${_CFG_RC_FILE})"
+            _DO_LOG=0;
+            ;;
+    esac
+
+    # check auxiliary tools
+    if (( _HAS_OPENSSL == 0 && _HAS_MD5SUM == 0 ))
+    then
+        warn "unable to find the 'openssl/md5sum' tools, will not do fetchmail log checking for account ${_CFG_ACCOUNT}"
+        _DO_LOG=0
+    fi
+
+    if (( _DO_LOG > 0 ))
+    then
+        (( ARG_DEBUG > 0 )) && debug "will do log check for account ${_CFG_ACCOUNT} [${_CFG_RC_FILE}]"
+        # get logfile statement in .fetchmailrc
+        _LOG_FILE=$(grep "^set logfile" "${_CFG_RC_FILE}" 2>/dev/null | awk '{ print $3 }' 2>/dev/null)
+        [[ -z "${_LOG_FILE}" ]] && {
+            warn "no fetchmail log file defined in fetchmailrc file at ${_CFG_RC_FILE} for account ${_CFG_ACCOUNT}, skipping log check"
+            continue
+        }
+        [[ -r "${_LOG_FILE}" ]] || {
+            warn "unable to read fetchmail log file at ${_LOG_FILE} for account ${_CFG_ACCOUNT}, skipping log check"
+            continue
+        }
+        (( ARG_DEBUG > 0 )) && debug "log file found at ${_LOG_FILE}"
+
+        # determine state file (we use a hashed file name based on the fetchmail log file full path
+        # to avoid globbing when account has the same name for multiple entries in the configuration file)
+        (( _USE_OPENSSL == 1 )) && \
+            _HASH_FILE_NAME=$(${_OPENSSL_BIN} dgst -md5 "${_LOG_FILE}" 2>>"${HC_STDERR_LOG}" | cut -f2 -d'=' 2>/dev/null | tr -d ' ' 2>/dev/null)
+        (( _USE_MD5SUM == 1 )) && \
+            _HASH_FILE_NAME=$(${_MD5SUM_BIN} dgst -md5 "${_LOG_FILE}" 2>>"${HC_STDERR_LOG}" | cut -f1 -d' ' 2>/dev/null)
+        if [[ -z "${_HASH_FILE_NAME}" ]]
+        then
+            warn "unable to determine log state file for account ${_CFG_ACCOUNT}, skipping log check"
+            continue
+        fi
+
+        # get log pointer from state file
+        _STATE_FILE="${STATE_PERM_DIR}/${_HASH_FILE_NAME}.fetchmail"
+        if [[ -r "${_STATE_FILE}" ]]
+        then
+            _LAST_POINTER=$(<"${_STATE_FILE}")
+        fi
+        if [[ -z "${_LAST_POINTER}" ]]
+        then
+            (( ARG_DEBUG > 0 )) && debug "could not determine last known log entry, resetting to 0"
+            _LAST_POINTER=0
+        else
+            (( ARG_DEBUG > 0 )) && debug "old _LAST_POINTER=${_LAST_POINTER}"
+        fi
+
+        # check last known vs current pointer
+        _LOG_COUNT=$(wc -l "${_LOG_FILE}" 2>/dev/null | cut -f1 -d' ')
+        (( ARG_DEBUG > 0 )) && debug "line count for current log: ${_LOG_COUNT}"
+        if (( _LOG_COUNT >= _LAST_POINTER ))
+        then
+            # find errors in later log lines
+            awk -F':' -v error_regex="${_ERROR_REGEX}" -v last_pointer=${_LAST_POINTER} '
+                {
+                    # find error lines which have a line count > last pointer
+                    if (NR > last_pointer && $0 ~ error_regex) {
+                        # cut fetchmail: prefix & replce possible pipes
+                        gsub(/^fetchmail: +/, "");
+                        gsub(/\|/, "_");
+                        # report issue with line number
+                        print $0 "|" NR;
+                    }
+                }' "${_LOG_FILE}" 2>/dev/null | while IFS="|" read -r _LINE_TEXT _LINE_NR
+            do
+                _MSG="found issue in ${_LOG_FILE}: ${_LINE_TEXT} (LINENO=${_LINE_NR})"
+                if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+                then
+                    log_hc "$0" 1 "${_MSG}"
+                fi
+                # update new last pointer
+                (( ARG_DEBUG > 0 )) && debug "updating _NEW_LAST_POINTER=${_LINE_NR}"
+                _NEW_LAST_POINTER=${_LINE_NR}
+            done
+        else
+            # log small has shrunk, assume it has been rotated, resetting pointer to zero
+            log "log file for account ${_CFG_ACCOUNT} seems to have been rotated, resetting log file pointer to 0"
+            _LAST_POINTER=0
+        fi
+
+        # update state file with new last pointer
+        if (( ARG_LOG > 0 ))
+        then
+            if [[ -n "${_NEW_LAST_POINTER}" ]] && (( _NEW_LAST_POINTER > _LAST_POINTER ))
+            then
+                _LAST_POINTER=${_NEW_LAST_POINTER}
+            fi
+            (( ARG_DEBUG > 0 )) && debug "new _LAST_POINTER=${_LAST_POINTER}"
+            print "${_LAST_POINTER}" >"${_STATE_FILE}"
+            # shellcheck disable=SC2181
+            if (( $? > 0 ))
+            then
+                warn "failed to update state file at ${_STATE_FILE}"
+                return 1
+            fi
+        fi
+    fi
+
+done
+
+return 0
+}
+
+# -----------------------------------------------------------------------------
+function _show_usage
+{
+cat <<- EOT
+NAME        : $1
+VERSION     : $2
+CONFIG      : $3 with parameters:
+                log_healthy=<yes|no>
+              and formatted stanzas:
+                fetchmail:<account>:<rc_file>:<check_log=Yes|No>
+PURPOSE     : Checks the status of local fetchmail services (process & log).
+              Fetchmail should be configured to run in daemon mode.
+LOG HEALTHY : Supported
+EOT
+
+return 0
+}
+
+#******************************************************************************
+# END of script
+#******************************************************************************

opt/hc/lib/platform/linux/check_linux_ntp_status.sh

@@ -35,6 +35,7 @@
 # @(#)             fixed problem with offset calculation [Patrick Van der Veken]
 # @(#) 2019-01-24: arguments fix [Patrick Van der Veken]
 # @(#) 2019-03-24: set dynamic path to client tools [Patrick Van der Veken]
+# @(#) 2020-12-21: fixes for --log-healthy [Patrick Van der Veken]
 # -----------------------------------------------------------------------------
 # DO NOT CHANGE THIS FILE UNLESS YOU KNOW WHAT YOU ARE DOING!
 #------------------------------------------------------------------------------
@@ -50,13 +51,13 @@ typeset _CHRONYD_SYSTEMD_SERVICE="chronyd.service"
 typeset _NTPD_SYSTEMD_SERVICE="ntpd.service"
 typeset _CHRONYD_USER="chrony"
 typeset _NTPD_USER="ntp"
-typeset _VERSION="2019-03-24"                           # YYYY-MM-DD
+typeset _VERSION="2020-12-21"                           # YYYY-MM-DD
 typeset _SUPPORTED_PLATFORMS="Linux"                    # uname -s match
 typeset _NTPQ_OPTS="-pn"
 # ------------------------- CONFIGURATION ends here ---------------------------
 
 # set defaults
-(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set ${DEBUG_OPTS}
+(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
 init_hc "$0" "${_SUPPORTED_PLATFORMS}" "${_VERSION}"
 typeset _ARGS=$(data_comma2space "$*")
 typeset _ARG=""
@@ -82,7 +83,7 @@ for _ARG in ${_ARGS}
 do
     case "${_ARG}" in
         help)
-            _show_usage $0 ${_VERSION} ${_CONFIG_FILE} && return 0
+            _show_usage "$0" "${_VERSION}" "${_CONFIG_FILE}" && return 0
             ;;
         force_chrony)
             log "forcing chrony since force_chrony was used"
@@ -173,11 +174,8 @@ fi
 #------------------------------------------------------------------------------
 # check for client tools
 _CHRONYC_BIN="$(command -v chronyc 2>>${HC_STDERR_LOG})"
-
-
 _NTPQ_BIN="$(command -v ntpq 2>>${HC_STDERR_LOG})"
 
-
 #------------------------------------------------------------------------------
 # chronyd (prefer) or ntpd (fallback)
 # but do not check if _USE_CHRONYD or _USE_NTPD is already set
@@ -202,6 +200,7 @@ then
                 ;;
             'sysv')
                 chkconfig chronyd >>${HC_STDOUT_LOG} 2>>${HC_STDERR_LOG}
+                # shellcheck disable=SC2181
                 if (( $? == 0 ))
                 then
                     _USE_CHRONYD=1
@@ -333,7 +332,10 @@ case ${_STC} in
         fi
         ;;
 esac
-log_hc "$0" ${_STC} "${_MSG}"
+if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+then
+    log_hc "$0" ${_STC} "${_MSG}"
+fi
 
 #------------------------------------------------------------------------------
 # check chronyc/ntpq results
@@ -341,6 +343,7 @@ _STC=0
 if (( _USE_CHRONYD > 0 ))
 then
     ${_CHRONYC_BIN} -nc sources 2>>${HC_STDERR_LOG} >>${HC_STDOUT_LOG}
+    # shellcheck disable=SC2181
     if (( $? > 0 ))
     then
         _MSG="unable to execute {${_CHRONYC_BIN}}"
@@ -368,7 +371,10 @@ then
             _MSG="chrony is synchronizing against ${_CHRONY_PEER}"
             ;;
     esac
-    log_hc "$0" ${_STC} "${_MSG}"
+    if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+    then
+        log_hc "$0" ${_STC} "${_MSG}"
+    fi
 
     # 2) offset value
     if (( _STC == 0 ))
@@ -380,6 +386,7 @@ then
                 # numeric, OK (negatives are OK too!)
                 # convert from us to ms
                 _CURR_OFFSET=$(print -R "${_CURR_OFFSET} * 1000" | bc 2>/dev/null)
+                # shellcheck disable=SC2181
                 if (( $? > 0 )) || [[ -z "${_CURR_OFFSET}" ]]
                 then
                     :
@@ -393,7 +400,10 @@ then
                 else
                     _MSG="NTP offset of ${_CURR_OFFSET} is within the acceptable range"
                 fi
-                log_hc "$0" ${_STC} "${_MSG}"
+                if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+                then
+                    log_hc "$0" ${_STC} "${_MSG}"
+                fi
                 ;;
             *)
                 # not numeric
@@ -425,7 +435,10 @@ else
             _MSG="NTP is synchronizing against ${_NTP_PEER##*\*}"
             ;;
     esac
-    log_hc "$0" ${_STC} "${_MSG}"
+    if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+    then
+        log_hc "$0" ${_STC} "${_MSG}"
+    fi
 
     # 2) offset value
     if (( _STC == 0 ))
@@ -442,7 +455,10 @@ else
                 else
                     _MSG="NTP offset of ${_CURR_OFFSET} is within the acceptable range"
                 fi
-                log_hc "$0" ${_STC} "${_MSG}"
+                if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+                then
+                    log_hc "$0" ${_STC} "${_MSG}"
+                fi
                 ;;
             *)
                 # not numeric

opt/hc/lib/platform/linux/check_linux_postfix_status.sh

@@ -19,7 +19,7 @@
 # @(#) MAIN: check_linux_postfix_status
 # DOES: see _show_usage()
 # EXPECTS: n/a
-# REQUIRES: data_comma2space(), linux_get_init(), init_hc(), log_hc(), warn')
+# REQUIRES: data_comma2space(), linux_get_init(), init_hc(), log_hc(), warn()
 #
 # @(#) HISTORY:
 # @(#) 2016-12-01: initial version [Patrick Van der Veken]
@@ -32,6 +32,7 @@
 # @(#) 2019-03-16: replace 'which' [Patrick Van der Veken]
 # @(#) 2019-03-25: fix for older Debian & Ubuntu [Patrick Van der Veken]
 # @(#) 2020-05-08: add pgrep als fallback check [Patrick Van der Veken]
+# @(#) 2020-12-27: add configuration check + quoting fixes [Patrick Van der Veken]
 # -----------------------------------------------------------------------------
 # DO NOT CHANGE THIS FILE UNLESS YOU KNOW WHAT YOU ARE DOING!
 #******************************************************************************
@@ -42,16 +43,17 @@ function check_linux_postfix_status
 # ------------------------- CONFIGURATION starts here -------------------------
 typeset _POSTFIX_INIT_SCRIPT="/etc/init.d/postfix"
 typeset _POSTFIX_SYSTEMD_SERVICE="postfix.service"
-typeset _VERSION="2020-05-08"                           # YYYY-MM-DD
+typeset _VERSION="2020-12-27"                           # YYYY-MM-DD
 typeset _SUPPORTED_PLATFORMS="Linux"                    # uname -s match
 # ------------------------- CONFIGURATION ends here ---------------------------
 
 # set defaults
-(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set ${DEBUG_OPTS}
+(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
 init_hc "$0" "${_SUPPORTED_PLATFORMS}" "${_VERSION}"
 typeset _ARGS=$(data_comma2space "$*")
 typeset _ARG=""
 typeset _POSTFIX_BIN=""
+typeset _POSTFIX_CHECKER=""
 typeset _MSG=""
 typeset _STC=0
 typeset _LOG_HEALTHY=0
@@ -63,7 +65,7 @@ for _ARG in ${_ARGS}
 do
     case "${_ARG}" in
         help)
-            _show_usage $0 ${_VERSION} ${_CONFIG_FILE} && return 0
+            _show_usage "$0" "${_VERSION}" "${_CONFIG_FILE}" && return 0
             ;;
     esac
 done
@@ -82,6 +84,9 @@ else
     log "not logging/showing passed health checks"
 fi
 
+#-------------------------------------------------------------------------------
+# process state
+
 # 1) try using the init ways
 linux_get_init
 case "${LINUX_INIT}" in
@@ -100,7 +105,7 @@ case "${LINUX_INIT}" in
         fi
         if (( _CHECK_SYSTEMD_SERVICE > 0 ))
         then
-            systemctl --quiet is-active ${_POSTFIX_SYSTEMD_SERVICE} 2>>${HC_STDERR_LOG} || _STC=1
+            systemctl --quiet is-active ${_POSTFIX_SYSTEMD_SERVICE} 2>>"${HC_STDERR_LOG}" || _STC=1
         else
             warn "systemd unit file not found {${_POSTFIX_SYSTEMD_SERVICE}}"
             _RC=1
@@ -114,7 +119,7 @@ case "${LINUX_INIT}" in
         # check running SysV
         if [[ -x ${_POSTFIX_INIT_SCRIPT} ]]
         then
-            if (( $(${_POSTFIX_INIT_SCRIPT} status 2>>${HC_STDERR_LOG} | grep -c -i 'is running' 2>/dev/null) == 0 ))
+            if (( $(${_POSTFIX_INIT_SCRIPT} status 2>>"${HC_STDERR_LOG}" | grep -c -i 'is running' 2>/dev/null) == 0 ))
             then
                 _STC=1
             fi
@@ -134,10 +139,9 @@ then
     _POSTFIX_BIN="$(command -v postfix 2>>${HC_STDERR_LOG})"
     if [[ -x ${_POSTFIX_BIN} && -n "${_POSTFIX_BIN}" ]]
     then
-        if (( $(${_POSTFIX_BIN} status 2>>${HC_STDERR_LOG} | grep -c -i 'is running' 2>/dev/null) == 0 ))
+        if (( $(${_POSTFIX_BIN} status 2>>"${HC_STDERR_LOG}" | grep -c -i 'is running' 2>/dev/null) == 0 ))
         then
             _RC=1
-
         fi
     else
         warn "postfix is not installed here"
@@ -148,7 +152,7 @@ fi
 # 3) try the pgrep way (note: old pgreps do not support '-c')
 if (( _RC > 0 ))
 then
-    (( $(pgrep -u postfix pickup 2>>${HC_STDERR_LOG} | wc -l 2>/dev/null) == 0 )) && _STC=1
+    (( $(pgrep -u postfix pickup 2>>"${HC_STDERR_LOG}" | wc -l 2>/dev/null) == 0 )) && _STC=1
 fi
 
 # evaluate results
@@ -168,6 +172,30 @@ then
     log_hc "$0" ${_STC} "${_MSG}"
 fi
 
+#-------------------------------------------------------------------------------
+# configuration state
+_POSTFIX_CHECKER="$(command -v postconf 2>>${HC_STDERR_LOG})"
+if [[ -x ${_POSTFIX_CHECKER} && -n "${_POSTFIX_CHECKER}" ]]
+then
+    # dump configuration
+    ${_POSTFIX_CHECKER} -n >>"${HC_STDOUT_LOG}" 2>>"${HC_STDERR_LOG}"
+    # shellcheck disable=SC2181
+    if (( $? > 0 ))
+    then
+        _MSG="postfix configuration files have syntax error(s) {${_POSTFIX_CHECKER} -n}"
+        _STC=1
+    else
+        _MSG="postfix configuration files are syntactically correct"
+        _STC=0
+    fi
+    if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+    then
+        log_hc "$0" ${_STC} "${_MSG}"
+    fi
+else
+    warn "skipping syntax check (unable to find syntax check tool)"
+fi
+
 return 0
 }
 
@@ -177,7 +205,8 @@ function _show_usage
 cat <<- EOT
 NAME        : $1
 VERSION     : $2
-PURPOSE     : Checks whether postfix (mail system) is running
+PURPOSE     : Checks whether postfix (mail system) is running and whether the
+              postfix configuration files are syntactically correct
 LOG HEALTHY : Supported
 
 EOT

opt/hc/lib/platform/linux/check_linux_uptime.sh

@@ -0,0 +1,313 @@
+#!/usr/bin/env ksh
+#------------------------------------------------------------------------------
+# @(#) check_linux_uptime
+#------------------------------------------------------------------------------
+# @(#) Copyright (C) 2020 by KUDOS BVBA (info@kudos.be).  All rights reserved.
+#
+# This program is a free software; you can redistribute it and/or modify
+# it under the same terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details
+#------------------------------------------------------------------------------
+#
+# DOCUMENTATION (MAIN)
+# -----------------------------------------------------------------------------
+# @(#) MAIN: check_linux_uptime
+# DOES: see _show_usage()
+# EXPECTS: see _show_usage()
+# REQUIRES: data_is_numeric(), data_timestring_to_mins(), data_comma2space(),
+#           init_hc(), log_hc(), warn()
+#
+# @(#) HISTORY:
+# @(#) 2020-12-21: initial version [Patrick Van der Veken]
+# -----------------------------------------------------------------------------
+# DO NOT CHANGE THIS FILE UNLESS YOU KNOW WHAT YOU ARE DOING!
+#------------------------------------------------------------------------------
+
+# -----------------------------------------------------------------------------
+function check_linux_uptime
+{
+# ------------------------- CONFIGURATION starts here -------------------------
+typeset _CONFIG_FILE="${CONFIG_DIR}/$0.conf"
+typeset _STATE_FILE="${STATE_PERM_DIR}/current.uptime"
+typeset _VERSION="2020-12-21"                           # YYYY-MM-DD
+typeset _SUPPORTED_PLATFORMS="Linux"                    # uname -s match
+# ------------------------- CONFIGURATION ends here ---------------------------
+
+# set defaults
+(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
+init_hc "$0" "${_SUPPORTED_PLATFORMS}" "${_VERSION}"
+typeset _ARGS=$(data_comma2space "$*")
+typeset _ARG=""
+typeset _MSG=""
+typeset _STC=0
+typeset _LOG_HEALTHY=0
+typset _CFG_HEALTHY=
+typeset _CFG_CHECK_REBOOT=""
+typeset _CFG_REBOOT_TIME=""
+typeset _CFG_CHECK_OLD_AGE=""
+typeset _CFG_OLD_AGE_TIME=""
+typeset _CHECK_REBOOT=""
+typeset _REBOOT_TIME=""
+typeset _REBOOT_TIME_MINS=""
+typeset _CHECK_OLD_AGE=""
+typeset _OLD_AGE_TIME=""
+typeset _OLD_AGE_TIME_MINS=""
+typeset _CURRENT_UPTIME=""
+typeset _CURRENT_UPTIME_MINS=""
+typeset _PREVIOUS_UPTIME=""
+typeset _PREVIOUS_UPTIME_MINS=""
+typeset _THRESHOLD_UPTIME_MINS=""
+
+# handle arguments (originally comma-separated)
+for _ARG in ${_ARGS}
+do
+    case "${_ARG}" in
+        help)
+            _show_usage "$0" "${_VERSION}" "${_CONFIG_FILE}" && return 0
+            ;;
+    esac
+done
+
+# handle config file
+[[ -n "${ARG_CONFIG_FILE}" ]] && _CONFIG_FILE="${ARG_CONFIG_FILE}"
+if [[ ! -r ${_CONFIG_FILE} ]]
+then
+    warn "unable to read configuration file at ${_CONFIG_FILE}"
+    return 1
+fi
+# read required config values
+_CFG_HEALTHY=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'log_healthy')
+case "${_CFG_HEALTHY}" in
+    yes|YES|Yes)
+        _LOG_HEALTHY=1
+        ;;
+    *)
+        # do not override hc_arg
+        (( _LOG_HEALTHY > 0 )) || _LOG_HEALTHY=0
+        ;;
+esac
+_CFG_CHECK_REBOOT=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'check_reboot')
+case "${_CFG_CHECK_REBOOT}" in
+    no|No|NO)
+        _CHECK_REBOOT=0
+        ;;
+    *)
+        _CHECK_REBOOT=1
+        ;;
+esac
+_CFG_REBOOT_TIME=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'reboot_time')
+if [[ -z "${_CFG_REBOOT_TIME}" ]]
+then
+    # default
+    _REBOOT_TIME="60m"
+else
+    _REBOOT_TIME="${_CFG_REBOOT_TIME}"
+fi
+_CFG_CHECK_OLD_AGE=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'check_old_age')
+case "${_CFG_CHECK_OLD_AGE}" in
+    yes|Yes|Yes)
+        _CHECK_OLD_AGE=1
+        ;;
+    *)
+        _CHECK_OLD_AGE=0
+        ;;
+esac
+_CFG_OLD_AGE_TIME=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'old_age_time')
+if [[ -z "${_CFG_OLD_AGE_TIME}" ]]
+then
+    # default
+    _OLD_AGE_TIME="365d"
+else
+    _OLD_AGE_TIME="${_CFG_OLD_AGE_TIME}"
+fi
+
+# log_healthy
+(( ARG_LOG_HEALTHY > 0 )) && _LOG_HEALTHY=1
+if (( _LOG_HEALTHY > 0 ))
+then
+    if (( ARG_LOG > 0 ))
+    then
+        log "logging/showing passed health checks"
+    else
+        log "showing passed health checks (but not logging)"
+    fi
+else
+    log "not logging/showing passed health checks"
+fi
+
+#------------------------------------------------------------------------------
+# read /proc/uptime
+if [[ -r /proc/uptime ]]
+then
+    # drop decimals
+    _CURRENT_UPTIME=$(awk '{ printf("%2.d", $1)}' /proc/uptime 2>/dev/null)
+else
+    warn "/proc/uptime cannot be found or queried"
+    return 1
+fi
+
+#------------------------------------------------------------------------------
+# read state file
+if [[ -r ${_STATE_FILE} ]]
+then
+    _PREVIOUS_UPTIME=$(<"${_STATE_FILE}")
+    # shellcheck disable=SC2181
+    if (( $? > 0 ))
+    then
+        warn "failed to read state file at ${_STATE_FILE}"
+        _PREVIOUS_UPTIME=""
+    fi
+fi
+
+#------------------------------------------------------------------------------
+# convert uptimes values
+_CURRENT_UPTIME_MINS=$(( _CURRENT_UPTIME / 60 ))
+data_is_numeric "${_CURRENT_UPTIME_MINS}"
+# shellcheck disable=SC2181
+if (( $? > 0 ))
+then
+    warn "unable to calculate current uptime value (minutes)"
+    (( ARG_DEBUG )) && debug "_CURRENT_UPTIME_MINS=${_CURRENT_UPTIME_MINS}"
+    return 1
+fi
+_PREVIOUS_UPTIME_MINS=$(( _PREVIOUS_UPTIME / 60 ))
+data_is_numeric "${_CURRENT_UPTIME_MINS}"
+# shellcheck disable=SC2181
+if (( $? > 0 ))
+then
+    warn "unable to calculate previous uptime value (minutes)"
+    (( ARG_DEBUG )) && debug "_PREVIOUS_UPTIME_MINS=${_PREVIOUS_UPTIME_MINS}"
+    return 1
+fi
+
+#------------------------------------------------------------------------------
+# check reboot event
+if (( _CHECK_REBOOT > 0 ))
+then
+    # convert _REBOOT_TIME to minutes
+    _REBOOT_TIME_MINS=$(data_timestring_to_mins "${_REBOOT_TIME}")
+    data_is_numeric "${_REBOOT_TIME_MINS}"
+    # shellcheck disable=SC2181
+    if (( $? > 0 ))
+    then
+        warn "unable to calculate 'reboot_time' value from configuration file ${_CONFIG_FILE}"
+        (( ARG_DEBUG )) && debug "_REBOOT_TIME=${_REBOOT_TIME}"
+        return 1
+    fi
+
+    # previous uptime missing?
+    if [[ -z "${_PREVIOUS_UPTIME}" ]]
+    then
+        if (( ARG_LOG > 0 ))
+        then
+            print "${_CURRENT_UPTIME}" >"${_STATE_FILE}"
+            # shellcheck disable=SC2181
+            if (( $? > 0 ))
+            then
+                warn "failed to update state file at ${_STATE_FILE}"
+                return 1
+            else
+                log "unable to find previously recorded uptime, resetting to current uptime"
+                return 0
+            fi
+        else
+            log "unable to find previously recorded uptime, resetting to current uptime"
+        fi
+    else
+        # current uptime + reboot time is smaller than previous uptime?
+        _THRESHOLD_UPTIME_MINS=$(( _CURRENT_UPTIME_MINS + _REBOOT_TIME_MINS ))
+        if (( _THRESHOLD_UPTIME_MINS < _PREVIOUS_UPTIME_MINS ))
+        then
+            _MSG="reboot check: current uptime is NOK; check if reboot occurred"
+            _STC=1
+        else
+            _MSG="reboot check: current uptime is OK"
+            _STC=0
+        fi
+    fi
+    if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+    then
+        log_hc "$0" ${_STC} "${_MSG}" "${_THRESHOLD_UPTIME_MINS}" "${_PREVIOUS_UPTIME_MINS}"
+    fi
+
+    # update state file
+    if (( ARG_LOG > 0 ))
+    then
+        print "${_CURRENT_UPTIME}" >"${_STATE_FILE}"
+        # shellcheck disable=SC2181
+        if (( $? > 0 ))
+        then
+            warn "failed to update state file at ${_STATE_FILE}"
+            return 1
+        fi
+    fi
+else
+    log "reboot check: not enabled"
+fi
+
+#------------------------------------------------------------------------------
+# check old age event
+if (( _CHECK_OLD_AGE > 0 ))
+then
+    # convert _OLD_AGE_TIME to minutes
+    _OLD_AGE_TIME_MINS=$(data_timestring_to_mins "${_OLD_AGE_TIME}")
+    data_is_numeric "${_OLD_AGE_TIME_MINS}"
+    # shellcheck disable=SC2181
+    if (( $? > 0 ))
+    then
+        warn "unable to calculate 'old_age_time' value from configuration file ${_CONFIG_FILE}"
+        (( ARG_DEBUG )) && debug "_OLD_AGE_TIME=${_OLD_AGE_TIME}"
+        return 1
+    fi
+
+    # are we old age yet?
+    if (( _CURRENT_UPTIME_MINS > _OLD_AGE_TIME_MINS ))
+    then
+        _MSG="old_age check: current uptime is NOK; old age has arrived (>${_OLD_AGE_TIME})"
+        _STC=1
+    else
+        _MSG="old_age check: current uptime is OK"
+        _STC=0
+    fi
+    if (( _LOG_HEALTHY > 0 || _STC > 0 ))
+    then
+        log_hc "$0" ${_STC} "${_MSG}" "${_CURRENT_UPTIME_MINS}" "${_OLD_AGE_TIME_MINS}"
+    fi
+else
+    log "old age check: not enabled"
+fi
+
+return 0
+}
+
+# -----------------------------------------------------------------------------
+function _show_usage
+{
+cat <<- EOT
+NAME        : $1
+VERSION     : $2
+CONFIG      : $3 with:
+               log_healthy=<yes|no>
+               check_reboot=<yes|no>
+               reboot_time=<timestring>
+               check_old_age=<yes|no>
+               old_age_time=<timestring>
+PURPOSE     : Checks for unexpected/unplanned reboot events based on uptime
+               values.
+              Checks whether the host has been up and running for too much time.
+LOG HEALTHY : Supported
+
+EOT
+
+return 0
+}
+
+
+#------------------------------------------------------------------------------
+# END of script
+#------------------------------------------------------------------------------