31 files changed, 86 insertions, 62 deletions

diff --git a/lib/libc/gen/clock.3 b/lib/libc/gen/clock.3
index 8f1b78a6ba37..0e5ad06bd56d 100644
--- a/lib/libc/gen/clock.3
+++ b/lib/libc/gen/clock.3
@@ -42,7 +42,7 @@
 .Nm clock
 .Nd determine processor time used
 .Sh SYNOPSIS
-.Fd #include <sys/types.h>
+.Fd #include <time.h>
 .Ft clock_t
 .Fn clock void
 .Sh DESCRIPTION
diff --git a/lib/libc/gen/crypt.3 b/lib/libc/gen/crypt.3
index d95f7040a059..28b51123e94e 100644
--- a/lib/libc/gen/crypt.3
+++ b/lib/libc/gen/crypt.3
@@ -54,7 +54,7 @@
 .Fn des_cipher "const char *in" "char *out" "long salt" "int count"
 .Sh DESCRIPTION
 The
-.Xr crypt
+.Fn crypt
 function
 performs password encryption.
 It is derived from the
diff --git a/lib/libc/gen/ctermid.3 b/lib/libc/gen/ctermid.3
index ff92420eda55..2e3e9e6d71bc 100644
--- a/lib/libc/gen/ctermid.3
+++ b/lib/libc/gen/ctermid.3
@@ -80,7 +80,7 @@ The current implementation detects no error conditions.
 .Xr ttyname 3
 .Sh STANDARDS
 The
-.Xr ctermid
+.Fn ctermid
 function conforms to
 .St -p1003.1-88 .
 .Sh BUGS
diff --git a/lib/libc/gen/err.3 b/lib/libc/gen/err.3
index a80edeb4c607..f89cf7f3e682 100644
--- a/lib/libc/gen/err.3
+++ b/lib/libc/gen/err.3
@@ -30,7 +30,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"	From: @(#)err.3	8.1 (Berkeley) 6/9/93
-.\"	$Id$
+.\"	$Id: err.3,v 1.3 1996/02/11 22:33:27 mpp Exp $
 .\"
 .Dd April 13, 1995
 .Dt ERR 3
@@ -107,7 +107,7 @@ functions do not return, but exit with the value of the argument
 The
 .Fn err_set_exit
 function can be used to specify a function which is called before
-.Xr exit 2
+.Xr exit 3
 to perform any necessary cleanup; passing a null function pointer for
 .Va exitf
 resets the hook to do nothing.
@@ -135,6 +135,7 @@ if ((fd = open(block_device, O_RDONLY, 0)) == -1)
 	err(1, "%s", block_device);
 .Ed
 .Sh SEE ALSO
+.Xr exit 3 ,
 .Xr strerror 3
 .Sh HISTORY
 The
diff --git a/lib/libc/gen/exec.3 b/lib/libc/gen/exec.3
index 3438becdeab5..bda6e9e6169f 100644
--- a/lib/libc/gen/exec.3
+++ b/lib/libc/gen/exec.3
@@ -65,7 +65,7 @@ new process image.
 The functions described in this manual page are front-ends for the function
 .Xr execve 2 .
 (See the manual page for
-.Xr execve
+.Xr execve 2
 for detailed information about the replacement of the current process.)
 .Pp
 The initial argument for these functions is the pathname of a file which
@@ -148,7 +148,7 @@ used.
 In addition, certain errors are treated specially.
 .Pp
 If permission is denied for a file (the attempted
-.Xr execve
+.Fn execve
 returned
 .Er EACCES ) ,
 these functions will continue searching the rest of
@@ -159,7 +159,7 @@ set to
 .Er EACCES .
 .Pp
 If the header of a file isn't recognized (the attempted
-.Xr execve
+.Fn execve
 returned
 .Er ENOEXEC ) ,
 these functions will execute the shell with the path of
@@ -167,7 +167,7 @@ the file as its first argument.
 (If this attempt fails, no further searching is done.)
 .Pp
 If the file is currently busy (the attempted
-.Xr execve
+.Fn execve
 returned
 .Er ETXTBUSY ) ,
 these functions will sleep for several seconds,
@@ -179,7 +179,7 @@ executes a file with the program tracing facilities enabled (see
 .Xr ptrace 2 ) .
 .Sh RETURN VALUES
 If any of the
-.Xr exec
+.Fn exec
 functions returns, an error will have occurred.
 The return value is \-1, and the global variable
 .Va errno
@@ -213,10 +213,9 @@ for any of the errors specified for the library function
 .Xr sh 1 ,
 .Xr execve 2 ,
 .Xr fork 2 ,
-.Xr trace 2 ,
-.Xr environ 7 ,
+.Xr ktrace 2 ,
 .Xr ptrace 2 ,
-.Xr environ 7 ,
+.Xr environ 7 .
 .Sh COMPATIBILITY
 Historically, the default path for the
 .Fn execlp
diff --git a/lib/libc/gen/fnmatch.3 b/lib/libc/gen/fnmatch.3
index 5d5dfd58fbf5..8d0919c3e872 100644
--- a/lib/libc/gen/fnmatch.3
+++ b/lib/libc/gen/fnmatch.3
@@ -107,8 +107,7 @@ otherwise, it returns the value
 .Sh SEE ALSO
 .Xr sh 1 ,
 .Xr glob 3 ,
-.Xr regex 3 ,
-.Xr wordexp 3
+.Xr regex 3
 .Sh STANDARDS
 The
 .Fn fnmatch
diff --git a/lib/libc/gen/fts.3 b/lib/libc/gen/fts.3
index dde076d08a01..630a5b2c64e7 100644
--- a/lib/libc/gen/fts.3
+++ b/lib/libc/gen/fts.3
@@ -42,7 +42,7 @@
 .Fd #include <sys/stat.h>
 .Fd #include <fts.h>
 .Ft FTS *
-.Fn fts_open "char * const *path_argv" "int options" "int *compar(const FTSENT **, const FTSENT **)"
+.Fn fts_open "char * const *path_argv" "int options" "int (*compar)(const FTSENT **, const FTSENT **)"
 .Ft FTSENT *
 .Fn fts_read "FTS *ftsp"
 .Ft FTSENT *
@@ -122,7 +122,7 @@ typedef struct _ftsent {
 These fields are defined as follows:
 .Bl -tag -width "fts_namelen"
 .It Fa fts_info
-One of the following flags describing the returned
+One of the following values describing the returned
 .Fa FTSENT
 structure and
 the file it represents.
diff --git a/lib/libc/gen/getbootfile.3 b/lib/libc/gen/getbootfile.3
index cfab748d529a..8c22b46e6bdc 100644
--- a/lib/libc/gen/getbootfile.3
+++ b/lib/libc/gen/getbootfile.3
@@ -30,7 +30,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     From: @(#)gethostname.3	8.1 (Berkeley) 6/4/93
-.\"	$Id$
+.\"	$Id: getbootfile.3,v 1.2 1996/02/11 22:33:31 mpp Exp $
 .\"
 .Dd September 23, 1994
 .Dt GETBOOTFILE 3
@@ -48,7 +48,7 @@ The
 function retrieves the full pathname of the file from which the
 current kernel was loaded, and returns a static pointer to the name.
 A read/write interface to this information is available via the
-.Xr sysctl 2
+.Xr sysctl 3
 MIB variable
 .Dq Li kern.bootfile .
 .Sh RETURN VALUES
@@ -57,7 +57,7 @@ fails, a a null pointer is returned and an error code is
 placed in the global location
 .Va errno .
 .Sh SEE ALSO
-.Xr sysctl 2
+.Xr sysctl 3
 .Sh BUGS
 If the boot blocks have not been modified to pass this information into
 the kernel at boot time, the static string
diff --git a/lib/libc/gen/getdomainname.3 b/lib/libc/gen/getdomainname.3
index 8ba5995017ad..27b8903b231a 100644
--- a/lib/libc/gen/getdomainname.3
+++ b/lib/libc/gen/getdomainname.3
@@ -30,7 +30,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)getdomainname.2	6.7 (Berkeley) 3/10/91
-.\"	$Id: getdomainname.2,v 1.1 1993/10/25 03:11:30 rgrimes Exp $
+.\"	$Id: getdomainname.3,v 1.2 1996/02/11 22:33:32 mpp Exp $
 .\"
 .Dd March 10, 1991
 .Dt GETDOMAINNAME 3
@@ -83,8 +83,8 @@ invalid address.
 The caller tried to set the domainname and was not the super-user.
 .El
 .Sh SEE ALSO
-.Xr sysctl 2
-.Xr gethostid 3
+.Xr gethostid 3 ,
+.Xr sysctl 3
 .Sh BUGS
 Host names are limited to
 .Dv MAXHOSTNAMELEN
diff --git a/lib/libc/gen/getgrent.3 b/lib/libc/gen/getgrent.3
index 132ba6b06707..07e1687dc0ab 100644
--- a/lib/libc/gen/getgrent.3
+++ b/lib/libc/gen/getgrent.3
@@ -30,7 +30,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     From: @(#)getgrent.3	8.2 (Berkeley) 4/19/94
-.\"	$Id$
+.\"	$Id: getgrent.3,v 1.3 1996/05/01 01:40:01 bde Exp $
 .\"
 .Dd September 29, 1994
 .Dt GETGRENT 3
@@ -45,6 +45,7 @@
 .Nm endgrent
 .Nd group database operations
 .Sh SYNOPSIS
+.Fd #include <sys/types.h>
 .Fd #include <grp.h>
 .Ft struct group *
 .Fn getgrent void
diff --git a/lib/libc/gen/gethostname.3 b/lib/libc/gen/gethostname.3
index fcb0303d7bb1..88ccf3a77e40 100644
--- a/lib/libc/gen/gethostname.3
+++ b/lib/libc/gen/gethostname.3
@@ -82,8 +82,8 @@ invalid address.
 The caller tried to set the hostname and was not the super-user.
 .El
 .Sh SEE ALSO
-.Xr sysctl 2
-.Xr gethostid 3
+.Xr gethostid 3 ,
+.Xr sysctl 3
 .Sh BUGS
 Host names are limited to
 .Dv MAXHOSTNAMELEN
diff --git a/lib/libc/gen/getloadavg.3 b/lib/libc/gen/getloadavg.3
index 2eafd5bf25f2..e451d672970b 100644
--- a/lib/libc/gen/getloadavg.3
+++ b/lib/libc/gen/getloadavg.3
@@ -55,8 +55,8 @@ If the load average was unobtainable, \-1 is returned; otherwise,
 the number of samples actually retrieved is returned.
 .Sh SEE ALSO
 .Xr uptime 1 ,
-.Xr sysctl 2 ,
-.Xr kvm_getloadavg 3
+.Xr kvm_getloadavg 3 ,
+.Xr sysctl 3
 .Sh HISTORY
 The
 .Fn getloadavg
diff --git a/lib/libc/gen/getmntinfo.3 b/lib/libc/gen/getmntinfo.3
index f0e83ea374a8..da1d5ad4671b 100644
--- a/lib/libc/gen/getmntinfo.3
+++ b/lib/libc/gen/getmntinfo.3
@@ -48,7 +48,7 @@ The
 .Fn getmntinfo
 function
 returns an array of
-.Xr statfs
+.Fn statfs
 structures describing each currently mounted file system (see
 .Xr statfs 2 ) .
 .Pp
@@ -104,5 +104,5 @@ will modify the same object.
 The memory allocated by
 .Fn getmntinfo
 cannot be
-.Xr free 2 Ns 'd
+.Xr free 3 Ns 'd
 by the application.
diff --git a/lib/libc/gen/getnetgrent.3 b/lib/libc/gen/getnetgrent.3
index de2523e5ed88..07d58063a4ac 100644
--- a/lib/libc/gen/getnetgrent.3
+++ b/lib/libc/gen/getnetgrent.3
@@ -113,7 +113,7 @@ have no return value.
 netgroup database file
 .El
 .Sh SEE ALSO
-.Fn netgroup 5
+.Xr netgroup 5
 .Sh COMPATIBILITY
 The netgroup members have three string fields to maintain compatibility
 with other vendor implementations, however it is not obvious what use the
diff --git a/lib/libc/gen/getpagesize.3 b/lib/libc/gen/getpagesize.3
index 1a2629740b73..ea7f587d3cb6 100644
--- a/lib/libc/gen/getpagesize.3
+++ b/lib/libc/gen/getpagesize.3
@@ -47,8 +47,7 @@ returns the number of bytes in a page.
 Page granularity is the granularity of many of the memory
 management calls.
 .Pp
-The page size is a 
-.Xr system
+The page size is a system
 page size and may not be the same as the underlying
 hardware page size.
 .Sh SEE ALSO
diff --git a/lib/libc/gen/getpass.3 b/lib/libc/gen/getpass.3
index 34e91cbd47fb..f312d42b8f5a 100644
--- a/lib/libc/gen/getpass.3
+++ b/lib/libc/gen/getpass.3
@@ -86,3 +86,7 @@ will modify the same object.
 The calling process should zero the password as soon as possible to
 avoid leaving the cleartext password visible in the process's address
 space.
+.Pp
+Upon receipt of a SIGTSTP, the input buffer will be flushed, so any
+partially typed password must be retyped when the process
+continues.
diff --git a/lib/libc/gen/getpwent.3 b/lib/libc/gen/getpwent.3
index 6c23f491a66c..a6a13212fb34 100644
--- a/lib/libc/gen/getpwent.3
+++ b/lib/libc/gen/getpwent.3
@@ -170,9 +170,9 @@ function
 has no return value.
 .Sh FILES
 .Bl -tag -width /etc/master.passwd -compact
-.It Pa /var/db/pwd.db
+.It Pa /etc/pwd.db
 The insecure password database file
-.It Pa /var/db/spwd.db
+.It Pa /etc/spwd.db
 The secure password database file
 .It Pa /etc/master.passwd
 The current password file
@@ -180,12 +180,12 @@ The current password file
 A Version 7 format password file
 .El
 .Sh SEE ALSO
-.Xr getlogin 3 ,
+.Xr getlogin 2 ,
 .Xr getgrent 3 ,
+.Xr yp 4 ,
 .Xr passwd 5 ,
 .Xr pwd_mkdb 8 ,
-.Xr vipw 8 ,
-.Xr yp 4
+.Xr vipw 8
 .Sh HISTORY
 The
 .Nm getpwent ,
diff --git a/lib/libc/gen/getvfsent.3 b/lib/libc/gen/getvfsent.3
index a8151b0ae317..ed6396d5ee93 100644
--- a/lib/libc/gen/getvfsent.3
+++ b/lib/libc/gen/getvfsent.3
@@ -1,4 +1,4 @@
-.\"	$Id$
+.\"	$Id: getvfsent.3,v 1.3 1996/05/01 01:40:04 bde Exp $
 .\"	Written by Garrett A. Wollman, September 1994.
 .\"	This manual page is in the public domain.
 .\"
@@ -15,6 +15,7 @@
 .Nm vfsload
 .Nd manage virtual filesystem modules
 .Sh SYNOPSIS
+.Fd #include <sys/param.h>
 .Fd #include <sys/mount.h>
 .Ft struct vfsconf *
 .Fn getvfsbyname "const char *name"
@@ -179,7 +180,7 @@ fails,
 .Va errno
 may be set to one of the values documented for
 .Xr fork 2 ,
-.Xr waitpid 3 ,
+.Xr waitpid 2 ,
 .Xr chdir 2 ,
 or
 .Xr execlp 3 ,
diff --git a/lib/libc/gen/glob.3 b/lib/libc/gen/glob.3
index f28bc2a0025e..4e3625bb0c9f 100644
--- a/lib/libc/gen/glob.3
+++ b/lib/libc/gen/glob.3
@@ -220,10 +220,11 @@ to provide globbing from directories stored on tape.
 Pre-process the pattern string to expand 
 .Ql {pat,pat,...} 
 strings like 
-.Xr csh 1. The pattern 
+.Xr csh 1 .
+The pattern 
 .Ql {}
-is left unexpanded for historical reasons
-.Xr (Csh 1 
+is left unexpanded for historical reasons (and
+.Xr csh 1 
 does the same thing to 
 ease typing
 of 
diff --git a/lib/libc/gen/nlist.3 b/lib/libc/gen/nlist.3
index 11c9ee40e14b..981a4c81dfa5 100644
--- a/lib/libc/gen/nlist.3
+++ b/lib/libc/gen/nlist.3
@@ -46,8 +46,8 @@ The
 .Fn nlist
 function
 retrieves name list entries from the symbol table of an
-executable file. (See
-.Xr a.out 5 . )
+executable file (see
+.Xr a.out 5 ) .
 The argument
 .Fa \&nl
 is set to reference the
diff --git a/lib/libc/gen/popen.3 b/lib/libc/gen/popen.3
index 6f89a5cbaf0c..db4adfa8cf59 100644
--- a/lib/libc/gen/popen.3
+++ b/lib/libc/gen/popen.3
@@ -170,9 +170,9 @@ The
 .Fn popen
 argument
 always calls
-.Xr sh ,
+.Xr sh 1 ,
 never calls
-.Xr csh .
+.Xr csh 1 .
 .Sh HISTORY
 A
 .Fn popen
diff --git a/lib/libc/gen/psignal.3 b/lib/libc/gen/psignal.3
index 4e7cfb842a70..2be78336390f 100644
--- a/lib/libc/gen/psignal.3
+++ b/lib/libc/gen/psignal.3
@@ -43,8 +43,8 @@
 .Fd #include <sys/signal.h>
 .Ft void
 .Fn psignal "unsigned sig" "const char *s"
-.Vt extern char *sys_siglist[];
-.Vt extern char *sys_signame[];
+.Vt extern const char * const sys_siglist[];
+.Vt extern const char * const sys_signame[];
 .Sh DESCRIPTION
 The
 .Fn psignal
diff --git a/lib/libc/gen/setjmp.3 b/lib/libc/gen/setjmp.3
index 47cdfa5cfff7..3b5d89e11c58 100644
--- a/lib/libc/gen/setjmp.3
+++ b/lib/libc/gen/setjmp.3
@@ -44,7 +44,8 @@
 .Nm setjmp ,
 .Nm longjmp ,
 .Nm _setjmp ,
-.Nm _longjmp longjmperror
+.Nm _longjmp ,
+.Nm longjmperror
 .Nd non-local jumps
 .Sh SYNOPSIS
 .Fd #include <setjmp.h>
@@ -125,7 +126,7 @@ pairs save and restore the signal mask while
 .Fn _setjmp Ns / Ns Fn _longjmp
 pairs save and restore only the register set and the stack.
 (See
-.Fn sigmask 2 . )
+.Fn sigprocmask 2 . )
 .Pp
 The
 .Fn sigsetjmp Ns / Ns Fn siglongjmp
@@ -144,7 +145,7 @@ routine calls the routine
 If
 .Fn longjmperror
 returns the program is aborted (see
-.Xr abort 2 ) .
+.Xr abort 3 ) .
 The default version of
 .Fn longjmperror
 prints the message
diff --git a/lib/libc/gen/signal.3 b/lib/libc/gen/signal.3
index 86189f12e242..3fd52d8580c4 100644
--- a/lib/libc/gen/signal.3
+++ b/lib/libc/gen/signal.3
@@ -98,7 +98,7 @@ call (formerly
 .It Dv SIGKILL No "	terminate process" "	kill program"
 .It Dv SIGBUS No "	create core image" "	bus error"
 .It Dv SIGSEGV No "	create core image" "	segmentation violation"
-.It Dv SIGSYS No "	create core image" "	system call given invalid argument"
+.It Dv SIGSYS No "	create core image" "	non-existent system call invoked"
 .It Dv SIGPIPE No "	terminate process" "	write on a pipe with no reader"
 .It Dv SIGALRM No "	terminate process" "	real-time timer expired"
 .It Dv SIGTERM No "	terminate process" "	software termination signal"
@@ -193,7 +193,7 @@ Otherwise, \-1 is returned and  the global variable
 .Va errno
 is set to indicate the error.
 .Sh ERRORS
-.Xr Signal
+.Fn Signal
 will fail and no action will take place if one of the
 following occur:
 .Bl -tag -width [EINVAL]
diff --git a/lib/libc/gen/sleep.3 b/lib/libc/gen/sleep.3
index 9e3c7976a13e..1016a3d55c42 100644
--- a/lib/libc/gen/sleep.3
+++ b/lib/libc/gen/sleep.3
@@ -70,12 +70,31 @@ A similar but less compatible function can be obtained with a single
 .Xr select 2 ;
 such a function would not restart after signals, but would not interfere
 with other uses of
-.Xr setitimer .
+.Xr setitimer 2 .
 .Sh RETURN VALUES
+The
+.Fn sleep
+function returns the number of seconds remaining to complete the operation. If
+sleep is interrupted or cannot allocate a timer it may will return the value
+needed to be passed to a subsequent sleep to complete the necessary delay.
+.Fn sleep
+repeatedly until it returns zero may busy-wait until a timer
+is available.
 .Sh SEE ALSO
 .Xr setitimer 2 ,
 .Xr sigpause 2 ,
 .Xr usleep 3
+.Sh CAVEAT
+In practice the FreeBSD implementation will not be interrupted: it will
+always return the original argument or zero. Code that depends on
+sleep being interrupted (using it as a timed pause, for example) needs
+to be recoded to use
+.Xr select 2
+or some other delay mechanism. Code that
+calls
+.Fn sleep
+repeatedly until it returns zero may busy-wait until a timer
+is available.
 .Sh HISTORY
 A
 .Fn sleep
diff --git a/lib/libc/gen/sysconf.3 b/lib/libc/gen/sysconf.3
index 53622f6c7616..a67208fe1259 100644
--- a/lib/libc/gen/sysconf.3
+++ b/lib/libc/gen/sysconf.3
@@ -64,7 +64,7 @@ The available values are as follows:
 .Pp
 .It Li _SC_ARG_MAX
 The maximum bytes of argument to
-.Xr exec 2 .
+.Xr execve 2 .
 .It Li _SC_CHILD_MAX
 The maximum number of simultaneous processes per user id.
 .It Li _SC_CLK_TCK
diff --git a/lib/libc/gen/syslog.3 b/lib/libc/gen/syslog.3
index 8a46d05d8b55..832fd9ce52e5 100644
--- a/lib/libc/gen/syslog.3
+++ b/lib/libc/gen/syslog.3
@@ -139,12 +139,12 @@ one or more of the following values:
 If
 .Fn syslog
 cannot pass the message to
-.Xr syslogd
+.Xr syslogd 8
 it will attempt to write the message to the console
 .Pq Dq Pa /dev/console.
 .It Dv LOG_NDELAY 
 Open the connection to
-.Xr syslogd
+.Xr syslogd 8
 immediately.
 Normally the open is delayed until the first message is logged.
 Useful for programs that need to manage the order in which file
diff --git a/lib/libc/gen/tcgetpgrp.3 b/lib/libc/gen/tcgetpgrp.3
index e97c25627211..40f48b115d0c 100644
--- a/lib/libc/gen/tcgetpgrp.3
+++ b/lib/libc/gen/tcgetpgrp.3
@@ -68,7 +68,7 @@ underlying terminal device represented by
 is not the controlling terminal.
 .El
 .Sh SEE ALSO
-.Xr setpgid 3 ,
+.Xr setpgid 2 ,
 .Xr setsid 2 ,
 .Xr tcsetpgrp 3
 .Sh STANDARDS
diff --git a/lib/libc/gen/tcsetpgrp.3 b/lib/libc/gen/tcsetpgrp.3
index e1f8af00cb3e..9047e4c44cbe 100644
--- a/lib/libc/gen/tcsetpgrp.3
+++ b/lib/libc/gen/tcsetpgrp.3
@@ -89,7 +89,7 @@ argument does not match the process group ID of a process in the same
 session as the calling process.
 .El
 .Sh SEE ALSO
-.Xr setpgid 3 ,
+.Xr setpgid 2 ,
 .Xr setsid 2 ,
 .Xr tcgetpgrp 3
 .Sh STANDARDS
diff --git a/lib/libc/gen/time.3 b/lib/libc/gen/time.3
index 62833936a5a1..ecf767dc281e 100644
--- a/lib/libc/gen/time.3
+++ b/lib/libc/gen/time.3
@@ -42,7 +42,6 @@
 .Nm time
 .Nd get time of day
 .Sh SYNOPSIS
-.Fd #include <sys/types.h>
 .Fd #include <time.h>
 .Ft time_t
 .Fn time "time_t *tloc"
diff --git a/lib/libc/gen/unvis.3 b/lib/libc/gen/unvis.3
index 807a851327b0..c65024d5915a 100644
--- a/lib/libc/gen/unvis.3
+++ b/lib/libc/gen/unvis.3
@@ -100,7 +100,7 @@ to zero.  Call
 with each successive byte, along with a pointer
 to this integer, and a pointer to a destination character.
 The
-.Xr unvis
+.Fn unvis
 function
 has several return codes that must be handled properly.  They are:
 .Bl -tag -width UNVIS_VALIDPUSH