diff options
Diffstat (limited to 'lib/libc/stdlib')
| -rw-r--r-- | lib/libc/stdlib/ptsname.3 | 26 |
1 files changed, 11 insertions, 15 deletions
diff --git a/lib/libc/stdlib/ptsname.3 b/lib/libc/stdlib/ptsname.3 index bfa3647..f674a54 100644 --- a/lib/libc/stdlib/ptsname.3 +++ b/lib/libc/stdlib/ptsname.3 @@ -134,14 +134,22 @@ The slave pseudo-terminal device could not be accessed. The .Fn ptsname function conforms to -.St -p1003.1-2001 . +.St -p1003.1-2008 . .Pp This implementation of .Fn grantpt and .Fn unlockpt -does not comply with any standard, because these functions assume the -pseudo-terminal has the correct attributes upon creation. +does not conform to +.St -p1003.1-2008 , +because it depends on +.Xr posix_openpt 2 +to create the pseudo-terminal device with proper permissions in place. +It only validates whether +.Fa fildes +is a valid pseudo-terminal master device. +Future revisions of the specification will likely allow this behaviour, +as stated by the Austin Group. .Sh HISTORY The .Fn grantpt , @@ -150,15 +158,3 @@ and .Fn unlockpt functions appeared in .Fx 5.0 . -.Sh NOTES -The purpose of the -.Fn grantpt -and -.Fn unlockpt -functions has no meaning in -.Fx , -because pseudo-terminals obtained by -.Xr posix_openpt 2 -are created on demand. -Because these devices are created with proper permissions in place, they -are guaranteed to be unused by unprivileged processes. |
