Fix comparison between pointer and zero character constant.

[mjtrangoni]

Hi @cavaliercoder @jangaraj,

This fix #44

See,

libzbxsystemd.c: In function ‘SYSTEMD_UNIT_DISCOVERY’:
libzbxsystemd.c:214:35: warning: comparison between pointer and zero character constant [-Wpointer-compare]
  214 |         if(NULL != filter || '\0' != filter)
      |                                   ^~
libzbxsystemd.c:214:38: note: did you mean to dereference the pointer?
  214 |         if(NULL != filter || '\0' != filter)
      |

Signed-off-by: Mario Trangoni [email protected]

[jangaraj]

Hi Mario, did you test discovery with this new fix?

[mjtrangoni]

Hi @jangaraj,

No, I still have to do that. Will let you know as soon as I have it running

[mjtrangoni]

Hi @jangaraj, The output of /usr/sbin/zabbix_agentd -t systemd.unit.discovery["socket"] is the same after the patch.

[mjtrangoni]

ping?