check_nwstat: adds percentage used space (#1183)

* check_nwstat: adds percentage used space

This adds the new VPU parameter to the check_nwstat plugin.
This parameter returns the percentage used space on a Netware volume.
Now you can monitor your Netware volumes easy. We use it with a warning
85% and critical 90%.
eg: check_nwstat -H your.netware.host -v VPUvol1 -c 85 -w 90 returns
324653 MB (95%) used on volume vol1 - total 340212 MB|Used space in percent
on vol1=95;90;80;0;100.

* check_nwstat: Fixing whitespaces and tabs

* Update translation files

* check_nwstat: Use C99 booleans also with the patch

* Some formatting

---------

Co-authored-by: RincewindsHat <12514511+RincewindsHat@users.noreply.github.com>

2 files changed, 54 insertions, 0 deletions

diff --git a/THANKS.in b/THANKS.in
index 0ef7d48..69b3224 100644
--- a/THANKS.in
+++ b/THANKS.in
@@ -406,6 +406,7 @@ Wolfgang Nieder
 andrew bezella
 Lorenz Gruenwald
 John Morrissey
+Ralph Gottschalkson
 Arkadiusz Miśkiewicz
 Björn Berg
 Franz Schwartau
diff --git a/plugins/check_nwstat.c b/plugins/check_nwstat.c
index 12a729e..10c493b 100644
--- a/plugins/check_nwstat.c
+++ b/plugins/check_nwstat.c
@@ -46,6 +46,7 @@ enum checkvar {
         VPF,        /* check % free space on volume */
         VMF,        /* check MB free space on volume */
         VMU,        /* check MB used space on volume */
+        VPU,        /* check % used space on volume */
         VMP,        /* check MB purgeable space on volume */
         VKF,        /* check KB free space on volume */
         LTCH,       /* check long-term cache hit percentage */
@@ -146,6 +147,8 @@ main(int argc, char **argv) {
         unsigned long nss6_value=0L;
         unsigned long nss7_value=0L;
         unsigned long total_disk_space=0L;
+        unsigned long used_disk_space=0L;
+        unsigned long percent_used_disk_space=0L;
         unsigned long purgeable_disk_space=0L;
         unsigned long non_purgeable_disk_space=0L;
         unsigned long percent_free_space=0;
@@ -452,7 +455,50 @@ main(int argc, char **argv) {
                                  warning_value,
                                  critical_value);
                 }
+                /* check % used space on volume */
+        } else if (vars_to_check==VPU) {
+                close(sd);
+                my_tcp_connect (server_address, server_port, &sd);
+
+                asprintf (&send_buffer,"VMU%s\r\n",volume_name);
+                result=send_tcp_request(sd,send_buffer,recv_buffer,sizeof(recv_buffer));
+
+                if (result!=STATE_OK)
+                        return result;
+
+                if (!strcmp(recv_buffer,"-1\n")) {
+                        asprintf (&output_message,_("CRITICAL - Volume '%s' does not exist!"),volume_name);
+                        result=STATE_CRITICAL;
+
+                } else {
+                        used_disk_space=strtoul(recv_buffer,NULL,10);
+                        close(sd);
+                        my_tcp_connect (server_address, server_port, &sd);
+                        /* get total volume in MB */
+                        asprintf (&send_buffer,"VMS%s\r\n",volume_name);
+                        result=send_tcp_request(sd,send_buffer,recv_buffer,sizeof(recv_buffer));
+                        if (result!=STATE_OK)
+                                return result;
+                        total_disk_space=strtoul(recv_buffer,NULL,10);
+                        /* calculate percent used on volume */
+                        percent_used_disk_space=(unsigned long)(((double)used_disk_space/(double)total_disk_space)*100.0);
 
+                        if (check_critical_value && percent_used_disk_space >= critical_value)
+                                result=STATE_CRITICAL;
+                        else if (check_warning_value && percent_used_disk_space >= warning_value)
+                                result=STATE_WARNING;
+
+                        asprintf (&output_message,_("%lu MB (%lu%%) used on volume %s - total %lu MB|Used space in percent on %s=%lu;%lu;%lu;0;100"),
+                                used_disk_space,
+                                percent_used_disk_space,
+                                volume_name,
+                                total_disk_space,
+                                volume_name,
+                                percent_used_disk_space,
+                                warning_value,
+                                critical_value
+                                );
+                }
 
                 /* check % free space on volume */
         } else if (vars_to_check==VPF) {
@@ -1450,6 +1496,12 @@ int process_arguments(int argc, char **argv) {
                                         if (!strcmp(volume_name,""))
                                                 volume_name = strdup ("SYS");
                                 }
+                                else if (strncmp(optarg,"VPU",3)==0) {
+                                        vars_to_check=VPU;
+                                        volume_name = strdup (optarg+3);
+                                        if (!strcmp(volume_name,""))
+                                                volume_name = strdup ("SYS");
+                                }
                                 else if (strncmp(optarg,"VPP",3)==0) {
                                         vars_to_check=VPP;
                                         volume_name = strdup (optarg+3);
@@ -1626,6 +1678,7 @@ void print_help(void)
         printf ("    %s\n", _("OFILES    = number of open files"));
   printf ("    %s\n", _("    VMF<vol>  = MB of free space on Volume <vol>"));
   printf ("    %s\n", _("    VMU<vol>  = MB used space on Volume <vol>"));
+  printf ("    %s\n", _("    VPU<vol>  = percent used space on Volume <vol>"));
   printf ("    %s\n", _("    VMP<vol>  = MB of purgeable space on Volume <vol>"));
   printf ("    %s\n", _("    VPF<vol>  = percent free space on volume <vol>"));
   printf ("    %s\n", _("    VKF<vol>  = KB of free space on volume <vol>"));