(split) LDP: Update original to LDP v3.52.

[linuxjm/LDP_man-pages.git] / original / man3 / getttyent.3

diff --git a/original/man3/getttyent.3 b/original/man3/getttyent.3
index 60504c0..7bf7b3c 100644 (file)
--- a/original/man3/getttyent.3
+++ b/original/man3/getttyent.3
@@ -4,7 +4,7 @@
 .\" Distributed under GPL
 .\" %%%LICENSE_END
 .\"
-.TH GETTTYENT 3 2002-07-18  "GNU" "Linux Programmer's Manual"
+.TH GETTTYENT 3 2013-06-21  "GNU" "Linux Programmer's Manual"
 .SH NAME
 getttyent, getttynam, setttyent, endttyent \- get ttys file entry
 .SH SYNOPSIS
@@ -69,6 +69,23 @@ can be:
 #define TTY_ON     0x01  /* enable logins (start ty_getty program) */
 #define TTY_SECURE 0x02  /* allow UID 0 to login */
 .fi
+.SH ATTRIBUTES
+.SS Multithreading (see pthreads(7))
+The
+.BR getttyent ()
+returns a pointer to a static variable, so it is not thread-safe.
+.LP
+The
+.BR setttyent ()
+and
+.BR endttyent ()
+use a static variable, so they are not thread-safe.
+.LP
+The
+.BR getttynam ()
+calls thread-unsafe function
+.BR getttyent ()
+so it is not thread-safe.
 .SH CONFORMING TO
 Not in POSIX.1-2001.
 Present on the BSDs, and perhaps other systems.