duplicated block id: 1
size: 47 cleaned lines of code
in 2 files:
 - ipv4/control_unix.go (19:66)
 - ipv4/control_zos.go (41:88)

duplicated block id: 2
size: 28 cleaned lines of code
in 2 files:
 - ipv6/gen.go (41:69)
 - ipv4/gen.go (41:69)

duplicated block id: 3
size: 27 cleaned lines of code
in 2 files:
 - ipv6/gen.go (81:108)
 - ipv4/gen.go (81:108)

duplicated block id: 4
size: 22 cleaned lines of code
in 2 files:
 - idna/idna9.0.0.go (552:575)
 - idna/idna10.0.0.go (602:625)

duplicated block id: 5
size: 21 cleaned lines of code
in 2 files:
 - dns/dnsmessage/message.go (1339:1360)
 - dns/dnsmessage/message.go (1363:1384)

duplicated block id: 6
size: 20 cleaned lines of code
in 2 files:
 - idna/idna9.0.0.go (245:265)
 - idna/idna10.0.0.go (245:265)

duplicated block id: 7
size: 20 cleaned lines of code
in 2 files:
 - ipv6/batch.go (96:116)
 - ipv4/batch.go (108:128)

duplicated block id: 8
size: 17 cleaned lines of code
in 2 files:
 - ipv6/sys_ssmreq.go (19:36)
 - ipv4/sys_ssmreq.go (17:34)

duplicated block id: 9
size: 17 cleaned lines of code
in 2 files:
 - ipv6/sys_ssmreq.go (38:55)
 - ipv4/sys_ssmreq.go (36:53)

duplicated block id: 10
size: 16 cleaned lines of code
in 2 files:
 - ipv6/helper.go (42:58)
 - ipv4/helper.go (61:77)

duplicated block id: 11
size: 14 cleaned lines of code
in 2 files:
 - idna/idna9.0.0.go (86:102)
 - idna/idna10.0.0.go (87:103)

duplicated block id: 12
size: 14 cleaned lines of code
in 2 files:
 - ipv6/payload_cmsg.go (57:71)
 - ipv4/payload_cmsg.go (71:85)

duplicated block id: 13
size: 13 cleaned lines of code
in 2 files:
 - ipv6/dgramopt.go (67:80)
 - ipv4/dgramopt.go (67:80)

duplicated block id: 14
size: 12 cleaned lines of code
in 2 files:
 - idna/idna9.0.0.go (528:540)
 - idna/idna10.0.0.go (578:590)

duplicated block id: 15
size: 10 cleaned lines of code
in 2 files:
 - idna/idna9.0.0.go (515:525)
 - idna/idna10.0.0.go (565:575)

duplicated block id: 16
size: 9 cleaned lines of code
in 2 files:
 - ipv6/dgramopt.go (41:50)
 - ipv4/dgramopt.go (41:50)

duplicated block id: 17
size: 9 cleaned lines of code
in 2 files:
 - ipv6/dgramopt.go (54:63)
 - ipv4/dgramopt.go (54:63)

duplicated block id: 18
size: 9 cleaned lines of code
in 2 files:
 - ipv6/dgramopt.go (84:93)
 - ipv4/dgramopt.go (84:93)

duplicated block id: 19
size: 9 cleaned lines of code
in 2 files:
 - ipv6/dgramopt.go (266:275)
 - ipv4/dgramopt.go (228:237)

duplicated block id: 20
size: 9 cleaned lines of code
in 2 files:
 - ipv6/dgramopt.go (278:287)
 - ipv4/dgramopt.go (241:250)

duplicated block id: 21
size: 9 cleaned lines of code
in 2 files:
 - ipv6/dgramopt.go (292:301)
 - ipv4/dgramopt.go (255:264)

duplicated block id: 22
size: 9 cleaned lines of code
in 2 files:
 - ipv6/gen.go (30:39)
 - ipv4/gen.go (30:39)

duplicated block id: 23
size: 9 cleaned lines of code
in 2 files:
 - ipv6/sys_aix.go (71:80)
 - ipv6/sys_darwin.go (71:80)

duplicated block id: 24
size: 8 cleaned lines of code
in 2 files:
 - idna/idna9.0.0.go (151:159)
 - idna/idna10.0.0.go (152:160)

duplicated block id: 25
size: 8 cleaned lines of code
in 2 files:
 - ipv6/icmp_bsd.go (18:26)
 - ipv6/icmp_zos.go (17:25)

duplicated block id: 26
size: 8 cleaned lines of code
in 2 files:
 - ipv6/payload_nocmsg.go (16:24)
 - ipv4/payload_nocmsg.go (16:24)

duplicated block id: 27
size: 8 cleaned lines of code
in 2 files:
 - ipv6/payload_nocmsg.go (31:39)
 - ipv4/payload_nocmsg.go (32:40)

duplicated block id: 28
size: 7 cleaned lines of code
in 4 files:
 - route/sys_netbsd.go (36:43)
 - route/sys_dragonfly.go (41:48)
 - route/sys_freebsd.go (48:55)
 - route/sys_darwin.go (43:50)

duplicated block id: 29
size: 7 cleaned lines of code
in 4 files:
 - idna/idna9.0.0.go (711:718)
 - idna/idna10.0.0.go (763:770)
 - http/httpproxy/proxy.go (313:320)
 - http/httpguts/httplex.go (314:321)

duplicated block id: 30
size: 7 cleaned lines of code
in 2 files:
 - ipv6/sys_bpf.go (18:25)
 - ipv4/sys_bpf.go (18:25)

duplicated block id: 31
size: 7 cleaned lines of code
in 2 files:
 - internal/socket/msghdr_openbsd.go (7:14)
 - internal/socket/msghdr_linux_32bit.go (13:20)

duplicated block id: 32
size: 7 cleaned lines of code
in 2 files:
 - ipv4/control_zos.go (32:39)
 - ipv4/control_pktinfo.go (35:42)

duplicated block id: 33
size: 6 cleaned lines of code
in 2 files:
 - route/sys_netbsd.go (18:24)
 - route/sys_dragonfly.go (23:29)

duplicated block id: 34
size: 6 cleaned lines of code
in 2 files:
 - route/binary.go (47:53)
 - lif/binary.go (48:54)

duplicated block id: 35
size: 6 cleaned lines of code
in 2 files:
 - route/binary.go (79:85)
 - lif/binary.go (92:98)

duplicated block id: 36
size: 6 cleaned lines of code
in 2 files:
 - context/ctxhttp/ctxhttp.go (41:47)
 - context/ctxhttp/ctxhttp.go (50:56)

duplicated block id: 37
size: 6 cleaned lines of code
in 2 files:
 - ipv6/icmp.go (15:21)
 - ipv4/icmp.go (12:18)

duplicated block id: 38
size: 6 cleaned lines of code
in 3 files:
 - icmp/timeexceeded.go (20:26)
 - icmp/paramprob.go (22:28)
 - icmp/dstunreach.go (21:27)