Feature: conditionally allow non-localhost inbound connections with command-line flag
I am able to run ZNC without torsocks. Here's my attempt to proxy ZNC via torsocks: ``` foo@foo:~$ torsocks -d znc 1531790543 DEBUG torsocks[2727]: Logging subsytem initialized. Level 5, file (null), time 1 (in init_logging() at torsocks.c:303) 1531790543 DEBUG torsocks[2727]: Config file not provided by TORSOCKS_CONF_FILE. Using default /etc/tor/torsocks.conf (in config_file_read() at config-file.c:543) 1531790543 DEBUG torsocks[2727]: Config file setting tor address to 127.0.0.1 (in conf_file_set_tor_address() at config-file.c:298) 1531790543 DEBUG torsocks[2727]: Config file setting tor port to 9050 (in conf_file_set_tor_port() at config-file.c:254) 1531790543 DEBUG torsocks[2727]: [config] Onion address range set to 127.42.42.0/24 (in set_onion_info() at config-file.c:108) 1531790543 DEBUG torsocks[2727]: Config file /etc/tor/torsocks.conf opened and parsed. (in config_file_read() at config-file.c:572) 1531790543 DEBUG torsocks[2727]: [fclose] Close caught for fd 3 (in tsocks_fclose() at fclose.c:45) 1531790543 DEBUG torsocks[2727]: [onion] Pool init with subnet 127.42.42.0 and mask 24 (in onion_pool_init() at onion.c:104) 1531790543 DEBUG torsocks[2727]: [onion] Pool initialized with base 0, max_pos 255 and size 8 (in onion_pool_init() at onion.c:132) 1531790543 DEBUG torsocks[2727]: [fclose] Close caught for fd 5 (in tsocks_fclose() at fclose.c:45) [ .. ] Checking for list of available modules... [ >> ] ok [ .. ] Opening config [/home/foo/.znc/configs/znc.conf]... [ >> ] ok [ .. ] Loading global module [webadmin]... [ >> ] [/usr/lib/znc/webadmin.so] [ .. ] Binding to port [+21212]... 1531790543 DEBUG torsocks[2727]: [socket] Creating socket with domain 10, type 1 and protocol 6 (in tsocks_socket() at socket.c:33) 1531790543 DEBUG torsocks[2727]: [listen] Non localhost inbound connection are not allowed. (in tsocks_listen() at listen.c:64) 1531790543 DEBUG torsocks[2727]: [close] Close caught for fd 6 (in tsocks_close() at close.c:33) [ !! ] Unable to bind [Operation not permitted] [ ** ] Unrecoverable config error. 1531790543 DEBUG torsocks[2727]: [close] Close caught for fd 5 (in tsocks_close() at close.c:33) 1531790543 DEBUG torsocks[2727]: [onion] Destroying onion pool containing 0 entry (in onion_pool_destroy() at onion.c:148) 1531790543 DEBUG torsocks[2727]: [fclose] Close caught for fd 2 (in tsocks_fclose() at fclose.c:45) foo@foo:~$ ``` **Trac**: **Username**: dbkaplun
issue