patch 8.2.0557: no IPv6 support for channels
Problem: No IPv6 support for channels.
Solution: Add IPv6 support. (Ozaki Kiichi, closes #5893)
diff --git a/src/testdir/check.vim b/src/testdir/check.vim
index 34bf5b3..efb273b 100644
--- a/src/testdir/check.vim
+++ b/src/testdir/check.vim
@@ -142,4 +142,37 @@
endif
endfunc
+" Command to check that loopback device has IPv6 address
+command CheckIPv6 call CheckIPv6()
+func CheckIPv6()
+ if !has('ipv6')
+ throw 'Skipped: cannot use IPv6 networking'
+ endif
+ if !exists('s:ipv6_loopback')
+ let s:ipv6_loopback = s:CheckIPv6Loopback()
+ endif
+ if !s:ipv6_loopback
+ throw 'Skipped: no IPv6 address for loopback device'
+ endif
+endfunc
+
+func s:CheckIPv6Loopback()
+ if has('win32')
+ return system('netsh interface ipv6 show interface') =~? '\<Loopback\>'
+ elseif filereadable('/proc/net/if_inet6')
+ return (match(readfile('/proc/net/if_inet6'), '\slo$') >= 0)
+ elseif executable('ifconfig')
+ for dev in ['lo0', 'lo', 'loop']
+ " NOTE: On SunOS, need specify address family 'inet6' to get IPv6 info.
+ if system('ifconfig ' .. dev .. ' inet6 2>/dev/null') =~? '\<inet6\>'
+ \ || system('ifconfig ' .. dev .. ' 2>/dev/null') =~? '\<inet6\>'
+ return v:true
+ endif
+ endfor
+ else
+ " TODO: How to check it in other platforms?
+ endif
+ return v:false
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab