server/upsd.{c,h}: handle TRACKING value for STAT_CONVERSION_FAILED [networkupstools#2184]

Signed-off-by: Jim Klimov <[email protected]>

Author: jimklimov

NEWS.adoc

@@ -84,6 +84,10 @@ https://github.com/networkupstools/nut/milestone/11
    * In `cps_fix_report_desc()` we intended to fix-up input and output voltages
      in certain cases against high voltage transfer, we only fixed-up one of
      them. [#1245]
+   * `upsd` should now handle `TRACKING` value of `STAT_CONVERSION_FAILED`
+     introduced in NUT v2.8.2 for the socket protocol (between driver and
+     data server), by returning "ERR INVALID-ARGUMENT", so there is no change
+     for the network protocol definition. [#2182]
 
  - SEMVER, know thyself!
    * Development iterations of NUT should now identify with not only the

server/upsd.c

@@ -1320,6 +1320,7 @@ char *tracking_get(const char *id)
 		case STAT_UNKNOWN:
 			return "ERR UNKNOWN";
 		case STAT_INVALID:
+		case STAT_CONVERSION_FAILED:
 			return "ERR INVALID-ARGUMENT";
 		case STAT_FAILED:
 			return "ERR FAILED";

server/upsd.h

@@ -82,7 +82,8 @@ enum {
    STAT_HANDLED = 0,	/* completed successfully (NUT_SUCCESS or "OK") */
    STAT_UNKNOWN,	/* unspecified error (NUT_ERR_UNKNOWN) */
    STAT_INVALID,	/* invalid command/setvar (NUT_ERR_INVALID_ARGUMENT) */
-   STAT_FAILED		/* command/setvar failed (NUT_ERR_INSTCMD_FAILED / NUT_ERR_SET_FAILED) */
+   STAT_FAILED,		/* command/setvar failed (NUT_ERR_INSTCMD_FAILED / NUT_ERR_SET_FAILED) */
+   STAT_CONVERSION_FAILED	/* STAT_INSTCMD_CONVERSION_FAILED / STAT_SET_CONVERSION_FAILED in drivers/upshandler.h => "ERR INVALID-ARGUMENT" same as STAT_INVALID */
 };
 
 /* Commands and settings status tracking functions */