I'm porting some code to MacOS (13 in this case) and I'm having an issue with something that seems strange. Setting O_NONBLOCK on a pty fails with
Inappropriate ioctl for device (25)
I'm doing:
rv = fcntl(fd, F_GETFL, 0);
if (rv == -1)
return -1
rv |= O_NONBLOCK;
if (fcntl(fd, F_SETFL, rv) == -1)
return -1;
In fact, if I pass in 0 for "rv" to fcntl() it gives the same failure. Just for pty masters, not for anything else I've seen.
I need it to be non-blocking to avoid lockups.
cminyard
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