Open
Description
...
0.007398 [D2] Entering run_snmp for 1 IP address range(s)
0.007411 [D1] nutscan_scan_ip_range_snmp: Scanning SNMP for IP address range(s): (1)[10.94.56.0 .. 10.94.56.255]
0.007774 [D2] Entering list_nut_devices_thready for 10.94.56.0
0.007803 [D2] Entering list_nut_devices_thready for 10.94.56.1
0.008031 [D2] nutscan_scan_xml_http_thready: scanning IP '10.94.56.0' with a unicast, attempt 1 of 3 with a timeout of 5000000 usec
0.008073 nutscan_scan_xml_http_thready: Error sending Eaton <SCAN_REQUEST/> to 10.94.56.0, #1/3
0.008436 Failed to init libusb 1.0: Permission denied
~/nut $ echo $?
1
...or
~/nut $ LD_LIBRARY_PATH=`pwd`/clients/.libs ./tools/nut-scanner/nut-scanner -DDDDDD -m auto
...
0.024553 Scanning USB bus.
0.024727 Scanning SNMP bus.
0.024745 [D1] SNMP SCAN: starting pthread_create with run_snmp...
0.024931 Scanning XML/HTTP bus.
0.024949 [D1] XML/HTTP SCAN: starting pthread_create with run_xml...
0.025069 Scanning NUT bus (old libupsclient connect method).
0.025113 [D1] NUT bus (old) SCAN: starting pthread_create with run_nut_old...
0.025302 Scanning NUT simulation devices.
0.025356 [D1] NUT simulation devices SCAN: starting pthread_create with run_nut_simulation...
0.025491 [D2] Entering run_snmp for 1 IP address range(s)
0.025500 [D1] NUT bus (avahi) SCAN: not requested or supported, SKIPPED
0.025634 [D1] IPMI SCAN: not requested or supported, SKIPPED
0.025640 [D1] SERIAL SCAN: not requested or supported, SKIPPED
0.025645 [D1] USB SCAN: join back the pthread
0.025662 [D1] Scanning: /usr/local/ups/etc
0.025670 [D2] Entering run_nut_old for 1 IP address range(s)
0.025800 [D1] nutscan_scan_nut_simulation: Failed to open /usr/local/ups/etc: No such file or directory
0.025836 [D4] nutscan_scan_ip_range_nut: sem_init() for 1021 threads
0.025871 Failed to open /usr/local/ups/etc, skip NUT simulation scan
0.025907 [D1] nutscan_scan_ip_range_nut: Scanning "Old NUT" bus for IP address range(s): (1)[10.29.148.0 .. 10.29.148.255]
0.025806 [D2] Entering run_xml for 1 IP address range(s)
0.025971 [D4] nutscan_ip_ranges_iter_init: beginning iteration with first IP range [10.29.148.0 .. 10.29.148.255]
0.025640 [D1] nutscan_scan_ip_range_snmp: Scanning SNMP for IP address range(s): (1)[10.29.148.0 .. 10.29.148.255]
0.026096 [D5] nutscan_ip_ranges_iter_init: got IP from range: 10.29.148.0
0.026032 [D1] nutscan_scan_ip_range_xml_http: Scanning XML/HTTP bus for IP address range(s): (1)[10.29.148.0 .. 10.29.148.255]
0.026213 [D4] nutscan_scan_ip_range_xml_http: sem_init() for 1021 threads
0.026235 [D4] nutscan_ip_ranges_iter_init: beginning iteration with first IP range [10.29.148.0 .. 10.29.148.255]
0.026277 [D5] nutscan_ip_ranges_iter_init: got IP from range: 10.29.148.0
0.026539 [D5] nutscan_ip_ranges_iter_inc: got IP from range: 10.29.148.1
0.026575 [D4] nutscan_scan_ip_range_nut: max_threads_scantype=1021 curr_threads=0 thread_count=1 stwST=0 stwS=0 pass=1
0.027006 [D5] nutscan_ip_ranges_iter_inc: got IP from range: 10.29.148.2
0.027041 [D4] nutscan_scan_ip_range_nut: max_threads_scantype=1021 curr_threads=0 thread_count=2 stwST=0 stwS=0 pass=1
0.027062 [D5] nutscan_ip_ranges_iter_inc: got IP from range: 10.29.148.1
0.027096 [D4] nutscan_scan_ip_range_xml_http: max_threads_scantype=1021 curr_threads=0 thread_count=1 stwST=0 stwS=0 pass=1
0.027182 No USB device found: No such file or directory
~/nut $ echo $?
1
On one hand, this is a bit inconsistent vs. the situation where a missing library causes a scan to be overlooked and skipped. On the other, if it was requested and could not be fulfilled, it should be an error.
Maybe the explicit settings -O, -U, etc. should be treated as "required to succeed", while automatic enablement via no flag at all should be best-effort (require any one to succeed or hold no expectations at all?), and via -C is most questionable (require all to succeed or at least one)?
In any case, returning an error or success as exit code should be deferred to until all possible scans were completed (barring malloc, ulimit or pthreadserrors, etc. - and better step back there too). Here the other scans (netxml, snmp, oldnut) were started, passed 1-2 IP addresses, and were not allowed to finish.