3 files changed, 6 insertions, 22 deletions
diff --git a/lib/libc/gen/Symbol.map b/lib/libc/gen/Symbol.map
index 534c81a..42404bc 100644
--- a/lib/libc/gen/Symbol.map
+++ b/lib/libc/gen/Symbol.map
@@ -272,7 +272,6 @@ FBSD_1.0 {
 	openlog;
 	closelog;
 	setlogmask;
-	ttyslot;
 	ttyname_r;
 	ttyname;
 	timezone;
diff --git a/lib/libc/gen/ttyname.3 b/lib/libc/gen/ttyname.3
index c7b8cbc..e583833 100644
--- a/lib/libc/gen/ttyname.3
+++ b/lib/libc/gen/ttyname.3
@@ -34,8 +34,7 @@
 .Sh NAME
 .Nm ttyname ,
 .Nm ttyname_r ,
-.Nm isatty ,
-.Nm ttyslot
+.Nm isatty
 .Nd get name of associated terminal (tty) from file descriptor
 .Sh LIBRARY
 .Lb libc
@@ -47,8 +46,6 @@
 .Fn ttyname_r "int fd" "char *buf" "size_t len"
 .Ft int
 .Fn isatty "int fd"
-.Ft int
-.Fn ttyslot void
 .Sh DESCRIPTION
 These functions operate on the system file descriptors for terminal
 type devices.
@@ -89,13 +86,6 @@ The
 .Fn ttyname_r
 function
 takes a buffer and length as arguments to avoid this problem.
-.Pp
-The
-.Fn ttyslot
-function
-fetches the current process' control terminal number from the
-.Xr ttys 5
-file entry.
 .Sh RETURN VALUES
 The
 .Fn ttyname
@@ -110,12 +100,6 @@ The
 .Fn ttyname_r
 function returns 0 if successful.
 Otherwise an error number is returned.
-.Pp
-The
-.Fn ttyslot
-function
-returns the unit number of the device file if found; otherwise
-the value zero is returned.
 .Sh FILES
 .Bl -tag -width ".Pa /etc/ttys" -compact
 .It Pa /dev/\(**
@@ -142,10 +126,9 @@ is smaller than the length of the string to be returned.
 .Xr ttys 5
 .Sh HISTORY
 The
-.Fn isatty ,
-.Fn ttyname ,
+.Fn isatty
 and
-.Fn ttyslot
+.Fn ttyname
 functions
 appeared in
 .At v7 .
diff --git a/lib/libc/gen/ttyslot.c b/lib/libc/gen/ttyslot.c
index 31cc156..b2fac7c 100644
--- a/lib/libc/gen/ttyslot.c
+++ b/lib/libc/gen/ttyslot.c
@@ -40,7 +40,7 @@ __FBSDID("$FreeBSD$");
 #include <unistd.h>
 
 int
-ttyslot()
+__ttyslot(void)
 {
 	struct ttyent *ttyp;
 	int slot;
@@ -63,3 +63,5 @@ ttyslot()
 	endttyent();
 	return(0);
 }
+
+__sym_compat(ttyslot, __ttyslot, FBSD_1.0);