14249 pseudo-terminal nomenclature should reflect POSIX
Change-Id: Ib4a3cef899ff4c71b09cb0dc6878863c5e8357bc

@@ -1,49 +1,42 @@
 PTSNAME(3C)              Standard C Library Functions              PTSNAME(3C)
 
 NAME
-       ptsname - get name of the slave pseudo-terminal device
+     ptsname - get the name of the subsidiary device of a pseudo-terminal
 
 SYNOPSIS
        #include <stdlib.h>
 
-       char *ptsname(int fildes);
+     char *
+     ptsname(int fildes);
 
-
 DESCRIPTION
-       The ptsname() function returns the name of the slave pseudo-terminal
-       device associated with a master pseudo-terminal device. fildes is a
-       file descriptor returned from a successful open of the master device.
-       ptsname() returns a pointer to a string containing the null-terminated
-       path name of the slave device of the form /dev/pts/N, where N is a non-
-       negative integer.
+     The ptsname() function returns the name of the pseudo-terminal subsidiary
+     device associated with a pseudo-terminal manager device.  The fildes
+     argument is a file descriptor returned from a successful open of the
+     pseudo-terminal manager device; e.g., by calling posix_openpt(3C) or by
+     performing an open(2) of the ptm(7D) device.
 
+     The ptsname() function returns a pointer to a string containing the null-
+     terminated path name of the subsidiary device.  This string is of the
+     form /dev/pts/N, where N is a non-negative integer.
+
 RETURN VALUES
-       Upon successful completion, the function ptsname() returns a pointer to
-       a string which is the name of the pseudo-terminal slave device. This
-       value points to a static data area that is overwritten by each call to
-       ptsname(). Upon failure, ptsname() returns NULL. This could occur if
-       fildes is an invalid file descriptor or if  the slave device name does
-       not exist in the file system.
+     If successful, the ptsname() function returns a pointer to a string which
+     is the name of the pseudo-terminal subsidiary device.  This value points
+     to a static data area that is overwritten by each call to ptsname().
 
-ATTRIBUTES
-       See attributes(5) for descriptions of the following attributes:
+     Upon failure, ptsname() returns NULL.  This could occur if fildes is an
+     invalid file descriptor or if the subsidiary device name does not exist
+     in the file system.
 
+INTERFACE STABILITY
+     Committed
 
+MT LEVEL
+     Safe
 
-
-       +--------------------+-----------------+
-       |  ATTRIBUTE TYPE    | ATTRIBUTE VALUE |
-       +--------------------+-----------------+
-       |Interface Stability | Standard        |
-       +--------------------+-----------------+
-       |MT-Level            | Safe            |
-       +--------------------+-----------------+
-
 SEE ALSO
-       open(2), grantpt(3C), ttyname(3C), unlockpt(3C), attributes(5),
-       standards(5)
+     open(2), grantpt(3C), posix_openpt(3C), ttyname(3C), unlockpt(3C),
+     attributes(5), standards(5), ptm(7D), pts(7D)
 
-
-       STREAMS Programming Guide
-
-                                August 14, 2002                    PTSNAME(3C)
+illumos                        February 5, 2022                        illumos