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Diffstat (limited to 'docs/ctty.htm')
| -rw-r--r-- | docs/ctty.htm | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/docs/ctty.htm b/docs/ctty.htm index 26d2c79..b8bce00 100644 --- a/docs/ctty.htm +++ b/docs/ctty.htm @@ -365,7 +365,7 @@ this is a great mystery. becomes its controlling tty. </p><p>The BSD approach is that one has to explicitly call </p><blockquote> -<pre>ioctl(fd, TIOCSCTTY, ...); +<pre>ioctl(fd, TIOCSCTTY, 0/1); </pre> </blockquote> @@ -378,6 +378,8 @@ and (ii) it does not yet have a controlling tty, and (iii) maybe the tty should not already control some other session; if it does it is an error if we aren't root, or we steal the tty if we are all-powerful. +[vda: correction: third parameter controls this: if 1, we steal tty from +any such session, if 0, we don't steal] </p><p>Opening some terminal will give us a controlling tty, provided that (i) the current process is a session leader, and (ii) it does not yet have a controlling tty, and |