Package: manpages
Version: 2.17-1
Severity: minor
openpty(3) and pty(7) are unclear about whether or not openpty(3) will return a
unix98 PTY.
The openpty(3) man page suggests that it will only return a legacy BSD PTY, and
the pty(7)
only says that posix_openpt(3) will return a unix98 PTY.
A little test program:
> #include <stdio.h>
> #include <unistd.h>
> #include <pty.h>
> #include <utmp.h>
>
> int *amaster;
> int *aslave;
> char name[1024];
>
> main()
> {
> openpty(amaster,aslave,name,0,0);
> }
when strace'd shows this:
> open("/dev/ptmx", O_RDWR) = 3
> statfs("/dev/pts", {f_type="EXT2_SUPER_MAGIC", f_bsize=4096,
> f_blocks=2520713, f_bfree=406122, f_bavail=278075, f_files=1281696,
> f_ffree=941147, f_fsid={0, 0}, f_namelen=255, f_frsize=4096}) = 0
So I conclude that openpty() will indeed return a unix98 PTY.
At least the FILES section of openpty(3) needs to be corrected. pty(7) and
openpty(3) could also mention the fact mentioned above.
--
Thomas Hood
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