Date: Tue, 2 Oct 2007 16:29:42 +0100 From: "Steven Hartland" <killing@multiplay.co.uk> To: =?UTF-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no> Cc: freebsd-hackers@freebsd.org, freebsd-stable@freebsd.org Subject: Re: How to enable more than 256 pty's? Message-ID: <032f01c80509$0ddc8720$b6db87d4@multiplay.co.uk> References: <001f01c80407$1358d490$b6db87d4@multiplay.co.uk><00ab01c8040c$7c408160$b6db87d4@multiplay.co.uk><012101c804e5$efa7e9c0$b6db87d4@multiplay.co.uk> <86abr1yb68.fsf@ds4.des.no>
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Thanks for the tip there but I cant find any function called pty_create_slave
in the source.
N.B. Machine is running 5.4 but I also looked on 6.2 which we could upgrade
to but still couldn't find it, so I assume you may be talking about something
that's in current which we couldn't risk on this machine.
Is this something that's possible on 5.x / 6.2 or something that will need a
lot of work?
Regards
Steve
----- Original Message -----
From: "Dag-Erling Smørgrav" <des@des.no>
You need to change the way ptys are named in pty_create_slave() and
pty_clone() in sys/kern/tty_pty.c. Just changing names won't help as
the sequence is also hardcoded in pty_clone().
You also need to change grantpt(), openpty() and any other userland code
which has hardcoded knowledge of the naming scheme:
des@ds4 ~% gfs pqrsPQRS
src/sys/kern/tty_pty.c: static char *names = "pqrsPQRS";
src/sys/kern/tty_pty.c: * pts == /dev/tty[pqrsPQRS][0123456789abcdefghijklmnopqrstuv]
src/sys/kern/tty_pty.c: * ptc == /dev/pty[pqrsPQRS][0123456789abcdefghijklmnopqrstuv]
src/contrib/telnet/telnetd/sys_term.c: for (cp = "pqrsPQRS"; *cp; cp++) {
src/usr.sbin/ac/ac.c: strchr("pqrsPQRS", usr.ut_line[3]) != 0 ||
src/lib/libutil/pty.c: for (cp1 = "pqrsPQRS"; *cp1; cp1++) {
src/lib/libc/stdlib/grantpt.c: #define PT_DEV1 "pqrsPQRS"
Alternatively, set kern.pts.enable to 1, and find and fix the
hang-on-close bug in the pts code (if it hasn't been fixed already)
DES
--
Dag-Erling Smørgrav - des@des.no
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