This fixes build of the project on Windows

[abryantsev]

I tried to build the master branch of the project with -DBUILD_NOTHING_BY_DEFAULT=1 -DBUILD_TUN2SOCKS=1 -DBUILD_UDPGW=1 on Windows. It failed with multiple exceptions:

...
Build FAILED.

"C:\Programming\projects\badvpn\build\install.vcxproj" (default target) (1) ->
"C:\Programming\projects\badvpn\build\ALL_BUILD.vcxproj" (default target) (3) ->
"C:\Programming\projects\badvpn\build\tun2socks\badvpn-tun2socks.vcxproj" (default target) (4) ->
"C:\Programming\projects\badvpn\build\flowextra\flowextra.vcxproj" (default target) (7) ->
"C:\Programming\projects\badvpn\build\system\system.vcxproj" (default target) (8) ->
(ClCompile target) ->
  c:\programming\projects\badvpn\system\bconnection_win.c(801): warning C4133: 'function': incompatible types - from 's
ocklen_t *' to 'sockaddr *' [C:\Programming\projects\badvpn\build\system\system.vcxproj]
  c:\programming\projects\badvpn\system\bconnection_win.c(808): warning C4024: 'addr_sys_to_socket': different types fo
r formal and actual parameter 2 [C:\Programming\projects\badvpn\build\system\system.vcxproj]


"C:\Programming\projects\badvpn\build\install.vcxproj" (default target) (1) ->
"C:\Programming\projects\badvpn\build\ALL_BUILD.vcxproj" (default target) (3) ->
"C:\Programming\projects\badvpn\build\tun2socks\badvpn-tun2socks.vcxproj" (default target) (4) ->
"C:\Programming\projects\badvpn\build\flowextra\flowextra.vcxproj" (default target) (7) ->
"C:\Programming\projects\badvpn\build\system\system.vcxproj" (default target) (8) ->
(ClCompile target) ->
  c:\programming\projects\badvpn\system\bconnection_win.c(799): error C2079: 'sysaddr' uses undefined struct 'BDatagram
_sys_addr' [C:\Programming\projects\badvpn\build\system\system.vcxproj]
  c:\programming\projects\badvpn\system\bconnection_win.c(800): error C2224: left of '.addr' must have struct/union typ
e [C:\Programming\projects\badvpn\build\system\system.vcxproj]
  c:\programming\projects\badvpn\system\bconnection_win.c(801): error C2224: left of '.addr' must have struct/union typ
e [C:\Programming\projects\badvpn\build\system\system.vcxproj]
  c:\programming\projects\badvpn\system\bconnection_win.c(801): error C2198: 'getsockname': too few arguments for call
[C:\Programming\projects\badvpn\build\system\system.vcxproj]
  c:\programming\projects\badvpn\system\bconnection_win.c(805): error C2224: left of '.len' must have struct/union type
 [C:\Programming\projects\badvpn\build\system\system.vcxproj]
  c:\programming\projects\badvpn\system\bconnection_win.c(808): error C2440: 'function': cannot convert from 'int' to '
sys_addr' [C:\Programming\projects\badvpn\build\system\system.vcxproj]
  c:\programming\projects\badvpn\system\bconnection_win.c(812): error C2059: syntax error: 'type' [C:\Programming\proje
cts\badvpn\build\system\system.vcxproj]
  c:\programming\projects\badvpn\system\bdatagram_win.c(655): error C2059: syntax error: 'type' [C:\Programming\project
s\badvpn\build\system\system.vcxproj]

    2 Warning(s)
    8 Error(s)

I Identified the problem was brought by few commits: e837e8d and 6241fc2:

• in the BConnection_win.c sys_addr type is used defined in the same class instead of the BDatagram_sys_addr defined in the BDatagram_win.h. Latter even not included.
• there is an attempt to pass int() parameter as an argument to BLog function. The syntax is incorrect.

[4-FLOSS-Free-Libre-Open-Source-Software]

Thank you for fix. I was about to try the latest udp feature in windows, but build the master branch failed too. But did work earlier. I will try this branch.

[ambrop72]

Thanks.

[abryantsev]

No problem, thank you for merging.