From 49e10846a684d8faa456046705ad6d3d7bce8f4c Mon Sep 17 00:00:00 2001
From: uwe <uwe@NetBSD.org>
Date: Sun, 4 Dec 2022 11:25:08 +0000
Subject: [PATCH] lib: Mark up error names in man pages with .Er

---
 lib/libc/compat-43/sigpause.3   | 4 ++--
 lib/libc/compat-43/sigvec.3     | 4 ++--
 lib/libc/gen/glob.3             | 6 +++---
 lib/libc/gen/popen.3            | 4 ++--
 lib/libc/gen/siginterrupt.3     | 4 ++--
 lib/libc/gen/sysctl.3           | 5 +++--
 lib/libc/gen/vis.3              | 4 ++--
 lib/libc/net/rcmd.3             | 4 ++--
 lib/libc/stdlib/reallocarray.3  | 4 ++--
 lib/libc/stdlib/strtod.3        | 6 +++---
 lib/libc/sys/_lwp_create.2      | 5 +++--
 lib/libc/sys/fcntl.2            | 4 ++--
 lib/libc/sys/wait.2             | 4 ++--
 lib/libc/time/tzset.3           | 4 ++--
 lib/libm/man/acos.3             | 5 +++--
 lib/libm/man/acosh.3            | 5 +++--
 lib/libm/man/atanh.3            | 5 +++--
 lib/libm/man/cosh.3             | 5 +++--
 lib/libm/man/sqrt.3             | 5 +++--
 lib/libossaudio/ossaudio.3      | 6 +++---
 lib/librmt/rmtops.3             | 6 ++++--
 lib/libutil/sockaddr_snprintf.3 | 4 ++--
 22 files changed, 56 insertions(+), 47 deletions(-)

diff --git a/lib/libc/compat-43/sigpause.3 b/lib/libc/compat-43/sigpause.3
index 431ad501c7d9..26e9275bb204 100644
--- a/lib/libc/compat-43/sigpause.3
+++ b/lib/libc/compat-43/sigpause.3
@@ -26,7 +26,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)sigpause.2	8.1 (Berkeley) 6/2/93
-.\"	$NetBSD: sigpause.3,v 1.15 2003/08/07 16:42:40 agc Exp $
+.\"	$NetBSD: sigpause.3,v 1.16 2022/12/04 11:25:08 uwe Exp $
 .\"
 .Dd June 2, 1993
 .Dt SIGPAUSE 3
@@ -59,7 +59,7 @@ signals are to be blocked.
 always terminates by being interrupted, returning -1 with
 .Va errno
 set to
-.Dv EINTR .
+.Er EINTR .
 .Sh SEE ALSO
 .Xr kill 2 ,
 .Xr sigaction 2 ,
diff --git a/lib/libc/compat-43/sigvec.3 b/lib/libc/compat-43/sigvec.3
index 18c2a4c2cabd..3c9cda2c2d92 100644
--- a/lib/libc/compat-43/sigvec.3
+++ b/lib/libc/compat-43/sigvec.3
@@ -1,4 +1,4 @@
-.\"	$NetBSD: sigvec.3,v 1.26 2010/03/22 19:30:53 joerg Exp $
+.\"	$NetBSD: sigvec.3,v 1.27 2022/12/04 11:25:08 uwe Exp $
 .\"
 .\" Copyright (c) 1980, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -189,7 +189,7 @@ the call may be restarted,
 the call may return with a data transfer shorter than requested,
 or the call may be forced to terminate
 with the error
-.Dv EINTR .
+.Er EINTR .
 Interrupting of pending calls is requested
 by setting the
 .Dv SV_INTERRUPT
diff --git a/lib/libc/gen/glob.3 b/lib/libc/gen/glob.3
index 748049955265..b5861a7d1842 100644
--- a/lib/libc/gen/glob.3
+++ b/lib/libc/gen/glob.3
@@ -1,4 +1,4 @@
-.\"	$NetBSD: glob.3,v 1.44 2019/05/29 01:21:33 christos Exp $
+.\"	$NetBSD: glob.3,v 1.45 2022/12/04 11:25:08 uwe Exp $
 .\"
 .\" Copyright (c) 1989, 1991, 1993, 1994
 .\"	The Regents of the University of California.  All rights reserved.
@@ -316,9 +316,9 @@ is not a directory, resulting in a
 call to
 .Fa errfunc .
 The error routine can suppress this action by testing for
-.Dv ENOENT
+.Er ENOENT
 and
-.Dv ENOTDIR ;
+.Er ENOTDIR ;
 however, the
 .Dv GLOB_ERR
 flag will still cause an immediate
diff --git a/lib/libc/gen/popen.3 b/lib/libc/gen/popen.3
index c68c8bfd6522..a50e32bb6617 100644
--- a/lib/libc/gen/popen.3
+++ b/lib/libc/gen/popen.3
@@ -1,4 +1,4 @@
-.\"	$NetBSD: popen.3,v 1.24 2022/03/27 00:32:15 gutteridge Exp $
+.\"	$NetBSD: popen.3,v 1.25 2022/12/04 11:25:08 uwe Exp $
 .\"
 .\" Copyright (c) 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -163,7 +163,7 @@ command, if
 has already been
 .Dq pclosed ,
 setting errno to
-.Dv ESRCH ,
+.Er ESRCH ,
 or if
 .Xr wait4 2
 returns an error, preserving the errno returned by
diff --git a/lib/libc/gen/siginterrupt.3 b/lib/libc/gen/siginterrupt.3
index f03283316849..ce7ce627d86a 100644
--- a/lib/libc/gen/siginterrupt.3
+++ b/lib/libc/gen/siginterrupt.3
@@ -1,4 +1,4 @@
-.\"	$NetBSD: siginterrupt.3,v 1.11 2003/08/07 16:42:56 agc Exp $
+.\"	$NetBSD: siginterrupt.3,v 1.12 2022/12/04 11:25:08 uwe Exp $
 .\"
 .\" Copyright (c) 1985, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -60,7 +60,7 @@ and no data has been transferred,
 the system call will return \-1 with the global variable
 .Va errno
 set to
-.Dv EINTR .
+.Er EINTR .
 Interrupted system calls that have started transferring
 data will return the amount of data actually transferred.
 System call interrupt is the signal behavior found on
diff --git a/lib/libc/gen/sysctl.3 b/lib/libc/gen/sysctl.3
index 18766fd369df..d3c4e00a7f6d 100644
--- a/lib/libc/gen/sysctl.3
+++ b/lib/libc/gen/sysctl.3
@@ -1,4 +1,4 @@
-.\"	$NetBSD: sysctl.3,v 1.206 2019/09/15 07:01:13 wiz Exp $
+.\"	$NetBSD: sysctl.3,v 1.207 2022/12/04 11:25:08 uwe Exp $
 .\"
 .\" Copyright (c) 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -105,7 +105,8 @@ and that location gives the amount of data copied after a successful call.
 If the amount of data available is greater
 than the size of the buffer supplied,
 the call supplies as much data as fits in the buffer provided
-and returns with the error code ENOMEM.
+and returns with the error code
+.Er ENOMEM .
 If the old value is not desired,
 .Fa oldp
 and
diff --git a/lib/libc/gen/vis.3 b/lib/libc/gen/vis.3
index 24cd2654d027..421f7d69827f 100644
--- a/lib/libc/gen/vis.3
+++ b/lib/libc/gen/vis.3
@@ -1,4 +1,4 @@
-.\"	$NetBSD: vis.3,v 1.49 2017/08/05 20:22:29 wiz Exp $
+.\"	$NetBSD: vis.3,v 1.50 2022/12/04 11:25:08 uwe Exp $
 .\"
 .\" Copyright (c) 1989, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -179,7 +179,7 @@ and
 functions return \-1 and set
 .Va errno
 to
-.Dv ENOSPC .
+.Er ENOSPC .
 The
 .Fn strenvisx
 function takes an additional argument,
diff --git a/lib/libc/net/rcmd.3 b/lib/libc/net/rcmd.3
index 516f81576f1f..70ad7d9d91de 100644
--- a/lib/libc/net/rcmd.3
+++ b/lib/libc/net/rcmd.3
@@ -1,4 +1,4 @@
-.\"	$NetBSD: rcmd.3,v 1.29 2022/12/04 01:29:32 uwe Exp $
+.\"	$NetBSD: rcmd.3,v 1.30 2022/12/04 11:25:08 uwe Exp $
 .\"
 .\" Copyright (c) 1983, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -275,7 +275,7 @@ They return \-1 on error with the global value
 .Va errno
 set according to the reason for failure.
 The error code
-.Dv EAGAIN
+.Er EAGAIN
 is overloaded to mean ``All network ports in use.''
 .Sh SEE ALSO
 .Xr rcmd 1 ,
diff --git a/lib/libc/stdlib/reallocarray.3 b/lib/libc/stdlib/reallocarray.3
index 86889f098d4d..7ad7f344787a 100644
--- a/lib/libc/stdlib/reallocarray.3
+++ b/lib/libc/stdlib/reallocarray.3
@@ -1,4 +1,4 @@
-.\" $NetBSD: reallocarray.3,v 1.6 2022/11/27 20:17:20 gutteridge Exp $
+.\" $NetBSD: reallocarray.3,v 1.7 2022/12/04 11:25:08 uwe Exp $
 .\"
 .\" Copyright (c) 2015 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -66,7 +66,7 @@ if there was overflow or if
 failed setting
 .Va errno
 to
-.Dv ENOMEM
+.Er ENOMEM
 or preserving the value from
 .Xr realloc 3 .
 .Sh SEE ALSO
diff --git a/lib/libc/stdlib/strtod.3 b/lib/libc/stdlib/strtod.3
index 595373d6b1d0..f8be2a6ad350 100644
--- a/lib/libc/stdlib/strtod.3
+++ b/lib/libc/stdlib/strtod.3
@@ -1,4 +1,4 @@
-.\"	$NetBSD: strtod.3,v 1.29 2016/11/07 21:52:36 riastradh Exp $
+.\"	$NetBSD: strtod.3,v 1.30 2022/12/04 11:25:08 uwe Exp $
 .\"
 .\" Copyright (c) 1990, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -159,7 +159,7 @@ plus or minus
 or
 .Dv HUGE_VALL
 is returned (according to the return type and sign of the value), and
-.Dv ERANGE
+.Er ERANGE
 is stored in
 .Va errno .
 .Pp
@@ -167,7 +167,7 @@ If the correct value is too small in magnitude to be represented
 normally with full precision
 .Pq Sq underflow ,
 the closest subnormal value, or zero, is returned, and
-.Dv ERANGE
+.Er ERANGE
 is stored in
 .Va errno .
 .Sh EXAMPLES
diff --git a/lib/libc/sys/_lwp_create.2 b/lib/libc/sys/_lwp_create.2
index 2bf2a3eeccc7..1af13e7d092d 100644
--- a/lib/libc/sys/_lwp_create.2
+++ b/lib/libc/sys/_lwp_create.2
@@ -1,4 +1,4 @@
-.\"	$NetBSD: _lwp_create.2,v 1.9 2021/08/22 20:18:39 andvar Exp $
+.\"	$NetBSD: _lwp_create.2,v 1.10 2022/12/04 11:25:09 uwe Exp $
 .\"
 .\" Copyright (c) 2003 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -52,7 +52,8 @@ disabled.
 If this context specifies invalid register values (for example privilege
 escalation by setting machine dependent bits forbidden for user processes),
 or does not specify cpu register values (uc_flags does not have the
-_UC_CPU bit set), the call will fail and errno will be set to EINVAL.
+_UC_CPU bit set), the call will fail and errno will be set to
+.Er EINVAL .
 .Pp
 The following flags affect the creation of the new LWP:
 .Bl -tag -width LWP_SUSPENDED
diff --git a/lib/libc/sys/fcntl.2 b/lib/libc/sys/fcntl.2
index 44ca9f7d1f68..460106d0b99b 100644
--- a/lib/libc/sys/fcntl.2
+++ b/lib/libc/sys/fcntl.2
@@ -1,4 +1,4 @@
-.\"	$NetBSD: fcntl.2,v 1.47 2021/07/28 11:29:59 wiz Exp $
+.\"	$NetBSD: fcntl.2,v 1.48 2022/12/04 11:25:09 uwe Exp $
 .\"
 .\" Copyright (c) 1983, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -340,7 +340,7 @@ the first entry found in the cache is returned.
 may fail if the corresponding entry has been evicted from the LRU
 .Xr namei 9
 cache and return
-.Dv ENOENT .
+.Er ENOENT .
 .It
 File descriptors that don't point to vnodes are not handled, as
 well as symbolic links since there is currently no way to obtain
diff --git a/lib/libc/sys/wait.2 b/lib/libc/sys/wait.2
index b69ebc00793a..2933d0173db3 100644
--- a/lib/libc/sys/wait.2
+++ b/lib/libc/sys/wait.2
@@ -1,4 +1,4 @@
-.\"	$NetBSD: wait.2,v 1.41 2022/10/17 18:41:06 jschauma Exp $
+.\"	$NetBSD: wait.2,v 1.42 2022/12/04 11:25:09 uwe Exp $
 .\"
 .\" Copyright (c) 1980, 1991, 1993, 1994
 .\"	The Regents of the University of California.  All rights reserved.
@@ -373,7 +373,7 @@ To avoid hanging indefinitely in such a case these functions
 return \-1 with
 .Dv errno
 set to
-.Dv EINVAL .
+.Er EINVAL .
 .Pp
 If
 .Fa rusage
diff --git a/lib/libc/time/tzset.3 b/lib/libc/time/tzset.3
index b44bccb2abcb..c9f7aa3961ef 100644
--- a/lib/libc/time/tzset.3
+++ b/lib/libc/time/tzset.3
@@ -1,4 +1,4 @@
-.\"	$NetBSD: tzset.3,v 1.43 2022/08/23 14:54:50 christos Exp $
+.\"	$NetBSD: tzset.3,v 1.44 2022/12/04 11:25:09 uwe Exp $
 .Dd Auguset 23, 2021
 .Dt TZSET 3
 .Os
@@ -105,7 +105,7 @@ If there is no match, then
 is returned and
 .Va errno
 is set to
-.Dv ESRCH .
+.Er ESRCH .
 The
 .Fn tzset
 function acts like
diff --git a/lib/libm/man/acos.3 b/lib/libm/man/acos.3
index 065084b431ad..b3f3d4ba0240 100644
--- a/lib/libm/man/acos.3
+++ b/lib/libm/man/acos.3
@@ -26,7 +26,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)acos.3	5.1 (Berkeley) 5/2/91
-.\"	$NetBSD: acos.3,v 1.18 2017/07/03 21:32:50 wiz Exp $
+.\"	$NetBSD: acos.3,v 1.19 2022/12/04 11:25:09 uwe Exp $
 .\"
 .Dd January 29, 2013
 .Dt ACOS 3
@@ -65,7 +65,8 @@ and
 .\" POSIX_MODE
 set the global variable
 .Va errno
-to EDOM.
+to
+.Er EDOM .
 .\" SYSV_MODE
 .\" call
 .\" .Xr matherr 3 .
diff --git a/lib/libm/man/acosh.3 b/lib/libm/man/acosh.3
index f809b7fc2fa1..5b6b3cd74475 100644
--- a/lib/libm/man/acosh.3
+++ b/lib/libm/man/acosh.3
@@ -26,7 +26,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)acosh.3	5.2 (Berkeley) 5/6/91
-.\"	$NetBSD: acosh.3,v 1.17 2014/09/19 16:02:58 wiz Exp $
+.\"	$NetBSD: acosh.3,v 1.18 2022/12/04 11:25:09 uwe Exp $
 .\"
 .Dd January 29, 2013
 .Dt ACOSH 3
@@ -65,7 +65,8 @@ and
 .Fn acoshl "x"
 return NaN and set the global variable
 .Va errno
-to EDOM.
+to
+.Er EDOM .
 .\" SVR4_MODE
 .\" call
 .\" .Xr matherr 3 .
diff --git a/lib/libm/man/atanh.3 b/lib/libm/man/atanh.3
index 6179d062d0da..6402da264864 100644
--- a/lib/libm/man/atanh.3
+++ b/lib/libm/man/atanh.3
@@ -26,7 +26,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)atanh.3	5.2 (Berkeley) 5/6/91
-.\"	$NetBSD: atanh.3,v 1.17 2014/09/19 16:02:58 wiz Exp $
+.\"	$NetBSD: atanh.3,v 1.18 2022/12/04 11:25:09 uwe Exp $
 .\"
 .Dd January 29, 2013
 .Dt ATANH 3
@@ -65,7 +65,8 @@ and
 .\" POSIX_MODE
 return +inf, -inf or NaN, and sets the global variable
 .Va errno
-to EDOM.
+to
+.Er EDOM .
 .\" SYSV_MODE
 .\" call
 .\" .Xr matherr 3 .
diff --git a/lib/libm/man/cosh.3 b/lib/libm/man/cosh.3
index 3e9832d16707..3d1d0f16c413 100644
--- a/lib/libm/man/cosh.3
+++ b/lib/libm/man/cosh.3
@@ -26,7 +26,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)cosh.3	5.1 (Berkeley) 5/2/91
-.\"	$NetBSD: cosh.3,v 1.15 2003/08/07 16:44:47 agc Exp $
+.\"	$NetBSD: cosh.3,v 1.16 2022/12/04 11:25:09 uwe Exp $
 .\"
 .Dd May 2, 1991
 .Dt COSH 3
@@ -58,7 +58,8 @@ and
 .\" POSIX_MODE
 return Inf and sets the global variable
 .Va errno
-to ERANGE.
+to
+.Er ERANGE .
 .\" SYSV_MODE
 .\" call
 .\" .Xr matherr 3 .
diff --git a/lib/libm/man/sqrt.3 b/lib/libm/man/sqrt.3
index d01ea26be66e..50cb194c6fb8 100644
--- a/lib/libm/man/sqrt.3
+++ b/lib/libm/man/sqrt.3
@@ -26,7 +26,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)sqrt.3	6.4 (Berkeley) 5/6/91
-.\"	$NetBSD: sqrt.3,v 1.14 2013/11/19 19:24:33 joerg Exp $
+.\"	$NetBSD: sqrt.3,v 1.15 2022/12/04 11:25:09 uwe Exp $
 .\"
 .Dd November 19, 2013
 .Dt SQRT 3
@@ -81,7 +81,8 @@ and
 .\" POSIX_MODE
 set the global variable
 .Va errno
-to EDOM.
+to
+.Er EDOM .
 .\" SYSV_MODE
 .\" call
 .\" .Xr matherr 3 .
diff --git a/lib/libossaudio/ossaudio.3 b/lib/libossaudio/ossaudio.3
index 83cc90451c15..19b6bf886dc6 100644
--- a/lib/libossaudio/ossaudio.3
+++ b/lib/libossaudio/ossaudio.3
@@ -1,4 +1,4 @@
-.\"	$NetBSD: ossaudio.3,v 1.27 2020/10/20 07:52:04 wiz Exp $
+.\"	$NetBSD: ossaudio.3,v 1.28 2022/12/04 11:25:09 uwe Exp $
 .\"
 .\" Copyright (c) 1997, 2020 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -134,11 +134,11 @@ The emulation only covers
 there are other differences as well.
 E.g., on a write
 that would block in non-blocking mode Linux returns
-.Dv EINTR
+.Er EINTR
 whereas
 .Nx 1.3
 returns
-.Dv EAGAIN .
+.Er EAGAIN .
 .It
 The emulation uses a #define for
 .Fn ioctl
diff --git a/lib/librmt/rmtops.3 b/lib/librmt/rmtops.3
index 9aa1442617e1..b1b77042868f 100644
--- a/lib/librmt/rmtops.3
+++ b/lib/librmt/rmtops.3
@@ -1,4 +1,4 @@
-.\"	$NetBSD: rmtops.3,v 1.16 2022/12/04 01:29:33 uwe Exp $
+.\"	$NetBSD: rmtops.3,v 1.17 2022/12/04 11:25:09 uwe Exp $
 .\"
 .Dd October 16, 2001
 .Dt RMTOPS 3
@@ -130,7 +130,9 @@ remote tape library
 .Sh RETURN VALUES
 Several of these routines will return \-1 and set
 .Va errno
-to EOPNOTSUPP, if they are given a remote file name or a file descriptor
+to
+.Er EOPNOTSUPP ,
+if they are given a remote file name or a file descriptor
 on an open remote file (e.g.,
 .Fn rmtdup ) .
 .Sh SEE ALSO
diff --git a/lib/libutil/sockaddr_snprintf.3 b/lib/libutil/sockaddr_snprintf.3
index e26ed47be8ec..67b1b51c9e11 100644
--- a/lib/libutil/sockaddr_snprintf.3
+++ b/lib/libutil/sockaddr_snprintf.3
@@ -1,4 +1,4 @@
-.\"     $NetBSD: sockaddr_snprintf.3,v 1.8 2013/06/07 17:23:26 christos Exp $
+.\"     $NetBSD: sockaddr_snprintf.3,v 1.9 2022/12/04 11:25:09 uwe Exp $
 .\"
 .\" Copyright (c) 2004 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -176,7 +176,7 @@ If the address family is not supported,
 returns \-1 and sets
 .Va errno
 to
-.Dv EAFNOSUPPORT .
+.Er EAFNOSUPPORT .
 For
 .Dv AF_INET
 and