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-rw-r--r--hurd/glibc/internals.mdwn10
1 files changed, 10 insertions, 0 deletions
diff --git a/hurd/glibc/internals.mdwn b/hurd/glibc/internals.mdwn
index b5d7354e..2ced0543 100644
--- a/hurd/glibc/internals.mdwn
+++ b/hurd/glibc/internals.mdwn
@@ -9,3 +9,13 @@ is included in the section entitled [[GNU Free Documentation
License|/fdl]]."]]"""]]
Some bits about this, some bits about that.
+
+---
+
+Hurd controlling tty behavior is generally consistent with BSD's, including
+`TIOCSCTTY`. Linux also has `TIOCSCTTY` and it is harmless to use it there.
+But BSD and Hurd never do an implicit `TIOCSCTTY` (hence our `O_NOCTTY` is
+zero).
+
+C.f. <http://lists.gnu.org/archive/html/bug-hurd/2009-10/msg00030.html> and the
+following messages.