If flags was 0, then an uninitialized buffer was printed. Changed
this so that if flags == 0, then just the value is printed.
If flags != 0, then print flags values to a buffer that is big
enough to hold all the sub-strings.
The buffer that is allocated for the filename is too short and
as sprintf() was used it overflowed the buffer easily when longer
interface name was used.
Additional universal message flags are defined which are applied
only for GET requests (NLM_F_ROOT, NLM_F_ATOMIC, NLM_F_MATCH,
NLM_F_DUMP) and flags which are related to NEW requests
(NLM_F_REPLACE, NLM_F_EXCL, NLM_F_CREATE, NLM_F_APPEND).
Print the SSID IE. If the SSID is not UTF-8 compliant, replace the non-
compliant byte with the UTF-8 substitution character. If the SSID is
hidden, its length and/or all characters are zero; print nothing in
this case.
Memory allocated l_timeout struct from l_timeout_create not being
freed.
==4184== HEAP SUMMARY:
==4184== in use at exit: 32 bytes in 1 blocks
==4184== total heap usage: 50 allocs, 49 frees, 39,902 bytes allocated
==4184==
==4184== 32 bytes in 1 blocks are definitely lost in loss record 1 of 1
==4184== at 0x4C2ABA0: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==4184== by 0x40706D: l_malloc (util.c:62)
==4184== by 0x408D9A: l_timeout_create (timeout.c:117)
==4184== by 0x40896A: signal_callback (signal.c:82)
==4184== by 0x408692: l_main_run (main.c:346)
==4184== by 0x402474: main (main.c:797)
==4184==
==4184== LEAK SUMMARY:
==4184== definitely lost: 32 bytes in 1 blocks
==4184== indirectly lost: 0 bytes in 0 blocks
==4184== possibly lost: 0 bytes in 0 blocks
==4184== still reachable: 0 bytes in 0 blocks
==4184== suppressed: 0 bytes in 0 blocks
Create a table for IE decoding and modify vendor IE printing to use this
new implementation. Unconditionally print out hexdumps of the IEs in order
to be able to verify the decoded IEs and its byte representation.
Send a RTM_DELLINK for the interface in use if it was created by iwmon.
As the main loop needs to be running when sending RTM_DELLINK, add a
timeout function for quitting the main loop.
On startup, request a list of interfaces via netlink. Find out whether
an interface of type nlmon exists and use it if it has all the needed
flags set. The default name of the interface is 'nlmon', which can be
changed from the command line. If the interface name is in use and is
not an nlmon type, print out an error message and exit.
