liminix

commit 9e042bd385da157a0e6d1656e01588ffc458ca8c
parent 26e1608fa7da7617751ea0407fa11f547245ed92
Author: Daniel Barlow <dan@telent.net>
Date:   Mon, 27 Oct 2025 21:12:06 +0000

ppp: ignore error return from writing readiness notification

ip-up and ipv6-up both attempt to write to fd 10, but only the
first writer will succeed because the peer closes the pipe as soon
as it gets anything. I can't see a way to make this race-proof, so
... here we are

Diffstat:
M
modules/ppp/common.nix
 | 
4
++--

1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/modules/ppp/common.nix b/modules/ppp/common.nix
@@ -41,7 +41,7 @@ let
     if test -n "''${DNS1}" ;then echo ''${DNS1} > ns1 ; fi
     if test -n "''${DNS2}" ;then echo ''${DNS2} > ns2 ; fi
     touch ip-up
-    test -e ipv6-up && echo >/proc/self/fd/10
+    test -e ipv6-up && ( echo >/proc/self/fd/10 || true)
   '';
   ip6-up = writeAshScript "ip6-up" { } ''
     exec >&5 2>&5
@@ -50,7 +50,7 @@ let
     echo $5 > ipv6-peer-address
     echo $4 > ipv6-address
     touch ipv6-up
-    test -e ip-up && echo >/proc/self/fd/10
+    test -e ip-up && ( echo >/proc/self/fd/10 || true)
   '';
   literal_or_output =
     let