system/mandoc: new package

11 files changed, 620 insertions, 0 deletions

diff --git a/system/mandoc/APKBUILD b/system/mandoc/APKBUILD
new file mode 100644
index 000000000..b3a4c018c
--- /dev/null
+++ b/system/mandoc/APKBUILD
@@ -0,0 +1,94 @@
+# Maintainer: Max Rees <maxcrees@me.com>
+pkgname=mandoc
+pkgver=1.14.5
+pkgrel=0
+pkgdesc="Manual page database, compiler, and viewer"
+url="https://mandoc.bsd.lv/"
+arch="all"
+license="ISC AND BSD-2-Clause AND BSD-3-Clause"
+replaces="man-db"
+depends="less"
+makedepends="zlib-dev"
+checkdepends="perl"
+subpackages="$pkgname-doc $pkgname-cgi"
+install="$pkgname.post-deinstall"
+triggers="$pkgname.trigger=/usr/share/man"
+source="https://mandoc.bsd.lv/snapshots/mandoc-$pkgver.tar.gz
+	configure.patch
+	empty-tbl-null-deref.patch
+	tbl-colwidth-oob.patch
+	less.patch
+	doc.patch
+	cgi-adelie.patch
+	cgi-gz.patch
+	cgi-search.patch
+	"
+
+prepare() {
+	default_prepare
+	cat >"configure.local" <<-EOF
+		PREFIX=/usr
+		MANDIR=/usr/share/man
+		WWWPREFIX=/var/lib/mandoc-cgi
+		# remove /usr/X11R6 from the following.
+		MANPATH_BASE=/usr/share/man
+		MANPATH_DEFAULT=/usr/share/man:/usr/local/share/man
+		# groff also provides a soelim.
+		BINM_SOELIM=mandoc-soelim
+
+		CFLAGS="$CFLAGS"
+		LDFLAGS="$LDFLAGS"
+		LN="ln -sf"
+		OSNAME="Adelie Linux"
+		UTF8_LOCALE=C.UTF-8
+
+		BUILD_CATMAN=1
+		BUILD_CGI=1
+	EOF
+
+	cat >"cgi.h" <<-EOF
+		#define SCRIPT_NAME ""
+		#define MAN_DIR "/var/lib/mandoc-cgi"
+		#define CSS_DIR ""
+		#define CUSTOMIZE_TITLE "Adelie Linux manual pages"
+	EOF
+}
+
+build() {
+	./configure
+	make
+}
+
+check() {
+	make regress
+}
+
+package() {
+	make DESTDIR="$pkgdir" install
+	install -Dm644 -t "$pkgdir"/usr/share/man/man8 man.cgi.8
+
+	mkdir -p "$pkgdir"/etc
+	cat >"$pkgdir"/etc/man.conf <<-EOF
+		# See man.conf(5).
+		#manpath /usr/share/man
+		#manpath /usr/local/share/man
+	EOF
+}
+
+cgi() {
+	pkgdesc="$pkgdesc (web interface)"
+	depends="$pkgname=$pkgver-r$pkgrel"
+	mkdir -p "$subpkgdir"/var/lib
+	mv "$pkgdir"/var/lib/mandoc-cgi \
+		"$subpkgdir"/var/lib
+}
+
+sha512sums="848f290847f3095757f25647e6d73eb7044018b145bf6f9dc8b5db164b1421911efdc5b3b9022ec3a2c5af9687a84d5acedee810f2bd2f7caaa9242dadb2cc52  mandoc-1.14.5.tar.gz
+074dc73b45c71b5c178750db6c7a4a45e97d97b5388fa5d6028faa90600358dd2b954781280ca41d17da3c577ad5a1a7a13ddc4dbea72ac5e86f1652e03ecde7  configure.patch
+c4055371a92be958f0d385c83b4788dc4c18bc990b1f780137309c83e174b8d3e65cae077aba3c5286a97fcee1514d61f6b7507ca25bd5155b8d577a7e8acd3a  empty-tbl-null-deref.patch
+9a8953f17e2db75bf3667e1d51c7db21ccc5e3042c59035ed6178094963eac919b7367f96708c9bcc81450ffc13842d12c23edd9bca3330be730149625db88e7  tbl-colwidth-oob.patch
+4b17b144b53ee30f9aae87c7824597151e16e6f5ad795e7b03e701f2d13ca47a62c696cb837689c75d5f34d3c190255c8f0583bc91a0f83f61afde7563a6fb2b  less.patch
+f35268ed507d5c6431f8cafe5a311d1ffe990083c6e1d22f5db479e19745d486cd45a699b64c4fb6757d1c0ab588c3e8d0778bfd75e98e751d1a786e89e8b925  doc.patch
+0dfe9e39570a2b6764303708b98f29b2b57114e124a0f37e9c77d4d33f25d474a79d271df46babd700e4cc93e3385a02356f19caa44ebe4e9b056fa4be96b95b  cgi-adelie.patch
+957bbaef888fb2ea15f9b795b15952332e65aed70d2e70f3142305a4fb9313ade455eae6dfc923af3ef008834e771b1a85d71389b86cd0ff9a1c31e84fef861c  cgi-gz.patch
+37be119308814b060ed9d5517b54eb02b210d677ffb085385929b6aa0e8e8bef2c6c1ab2055713ed8c72f2bc85593bf8744d2d0f163dd1aff65ce439c474b640  cgi-search.patch"
diff --git a/system/mandoc/cgi-adelie.patch b/system/mandoc/cgi-adelie.patch
new file mode 100644
index 000000000..66ce6a9ba
--- /dev/null
+++ b/system/mandoc/cgi-adelie.patch
@@ -0,0 +1,60 @@
+Adjustments for Adélie manual sections and architecture names.
+
+--- mandoc-1.14.5/cgi.c	2019-03-10 04:56:43.000000000 -0500
++++ mandoc-1.14.5/cgi.c	2020-06-05 15:54:05.681060852 -0500
+@@ -101,36 +101,28 @@ static	const char	 *scriptname = SCRIPT_
+ 
+ static	const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
+ static	const char *const sec_numbers[] = {
+-    "0", "1", "2", "3", "3p", "4", "5", "6", "7", "8", "9"
++    "0", "0p", "1", "1p", "2", "3", "3p", "3pm", "4", "5", "6", "7", "8"
+ };
+ static	const char *const sec_names[] = {
+     "All Sections",
++    "0p - POSIX C Headers",
+     "1 - General Commands",
++    "1p - POSIX Commands",
+     "2 - System Calls",
+     "3 - Library Functions",
+-    "3p - Perl Library",
++    "3p - POSIX C Library Functions",
++    "3pm - Perl Library",
+     "4 - Device Drivers",
+-    "5 - File Formats",
++    "5 - File formats and configuration files",
+     "6 - Games",
+-    "7 - Miscellaneous Information",
+-    "8 - System Manager\'s Manual",
+-    "9 - Kernel Developer\'s Manual"
++    "7 - Overview, conventions, and miscellaneous",
++    "8 - System Administrator\'s Manual"
+ };
+ static	const int sec_MAX = sizeof(sec_names) / sizeof(char *);
+ 
+ static	const char *const arch_names[] = {
+-    "amd64",       "alpha",       "armv7",	"arm64",
+-    "hppa",        "i386",        "landisk",
+-    "loongson",    "luna88k",     "macppc",      "mips64",
+-    "octeon",      "sgi",         "socppc",      "sparc64",
+-    "amiga",       "arc",         "armish",      "arm32",
+-    "atari",       "aviion",      "beagle",      "cats",
+-    "hppa64",      "hp300",
+-    "ia64",        "mac68k",      "mvme68k",     "mvme88k",
+-    "mvmeppc",     "palm",        "pc532",       "pegasos",
+-    "pmax",        "powerpc",     "solbourne",   "sparc",
+-    "sun3",        "vax",         "wgrisc",      "x68k",
+-    "zaurus"
++    "aarch64",     "armv7",       "pmmx",
++    "ppc",         "ppc64",       "x86_64",
+ };
+ static	const int arch_MAX = sizeof(arch_names) / sizeof(char *);
+ 
+@@ -655,7 +661,7 @@ pg_searchres(const struct req *req, stru
+ 					== NULL) ? 3 :
+ 				    ((archend = strchr(arch + 1, '/'))
+ 					== NULL) ? 0 :
+-				    strncmp(arch, "amd64/",
++				    strncmp(arch, "ppc64/",
+ 					archend - arch) ? 2 : 1;
+ 				if (archprio < archpriouse) {
+ 					archpriouse = archprio;
diff --git a/system/mandoc/cgi-gz.patch b/system/mandoc/cgi-gz.patch
new file mode 100644
index 000000000..ac506b797
--- /dev/null
+++ b/system/mandoc/cgi-gz.patch
@@ -0,0 +1,77 @@
+Handle the case where some of the entries in the manpath are gzipped by
+removing the .gz extension and allowing mparse_open to add it back and
+mark the page as gzipped. This is part of the documented contract for
+mparse_open, see mandoc(3).
+
+--- mandoc-1.14.5/cgi.c	2019-03-10 04:56:43.000000000 -0500
++++ mandoc-1.14.5/cgi.c	2020-06-05 15:54:05.681060852 -0500
+@@ -93,7 +93,7 @@ static	void		 resp_searchform(const stru
+ static	void		 resp_show(const struct req *, const char *);
+ static	void		 set_query_attr(char **, char **);
+ static	int		 validate_arch(const char *);
+-static	int		 validate_filename(const char *);
++static	int		 validate_filename(char *);
+ static	int		 validate_manpath(const struct req *, const char *);
+ static	int		 validate_urifrag(const char *);
+ 
+@@ -517,8 +509,13 @@ validate_arch(const char *arch)
+ }
+ 
+ static int
+-validate_filename(const char *file)
++validate_filename(char *file)
+ {
++	char *cp;
++
++	cp = strrchr(file, '.');
++	if (cp != NULL && ! strcmp(cp + 1, "gz"))
++		*cp = '\0';
+ 
+ 	if ('.' == file[0] && '/' == file[1])
+ 		file += 2;
+@@ -854,14 +862,15 @@ resp_format(const struct req *req, const
+ 	int		 fd;
+ 	int		 usepath;
+ 
+-	if (-1 == (fd = open(file, O_RDONLY, 0))) {
+-		puts("<p>You specified an invalid manual file.</p>");
+-		return;
+-	}
+-
+ 	mchars_alloc();
+ 	mp = mparse_alloc(MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1 |
+ 	    MPARSE_VALIDATE, MANDOC_OS_OTHER, req->q.manpath);
++
++	if (-1 == (fd = mparse_open(mp, file))) {
++		puts("<p>You specified an invalid manual file.</p>");
++		goto out;
++	}
++
+ 	mparse_readfd(mp, fd, file);
+ 	close(fd);
+ 	meta = mparse_result(mp);
+@@ -882,10 +891,11 @@ resp_format(const struct req *req, const
+ 		html_man(vp, meta);
+ 
+ 	html_free(vp);
+-	mparse_free(mp);
+-	mchars_free();
+ 	free(conf.man);
+ 	free(conf.style);
++out:
++	mparse_free(mp);
++	mchars_free();
+ }
+ 
+ static void
+@@ -904,8 +914,8 @@ resp_show(const struct req *req, const c
+ static void
+ pg_show(struct req *req, const char *fullpath)
+ {
+-	char		*manpath;
+-	const char	*file;
++	char	*manpath;
++	char	*file;
+ 
+ 	if ((file = strchr(fullpath, '/')) == NULL) {
+ 		pg_error_badrequest(
diff --git a/system/mandoc/cgi-search.patch b/system/mandoc/cgi-search.patch
new file mode 100644
index 000000000..dd74be9ef
--- /dev/null
+++ b/system/mandoc/cgi-search.patch
@@ -0,0 +1,48 @@
+Don't exit immediately if mansearch returns some paths that man.cgi
+considers invalid, in particular translated manpages (e.g.
+./de/man1/chfn.1). Just mark them as invalid (section 10, see struct
+manpage in mansearch.h) and skip them later.
+
+--- mandoc-1.14.5/cgi.c	2019-03-10 04:56:43.000000000 -0500
++++ mandoc-1.14.5/cgi.c	2020-06-05 15:54:05.681060852 -0500
+@@ -605,13 +602,20 @@ pg_searchres(const struct req *req, stru
+ 	size_t		 i, iuse;
+ 	int		 archprio, archpriouse;
+ 	int		 prio, priouse;
++	int		 results = 0;
+ 
+ 	for (i = 0; i < sz; i++) {
+-		if (validate_filename(r[i].file))
++		if (validate_filename(r[i].file)) {
++			results = 1;
+ 			continue;
++		}
+ 		warnx("invalid filename %s in %s database",
+ 		    r[i].file, req->q.manpath);
+-		pg_error_internal();
++		r[i].sec = 10;
++	}
++
++	if (! results) {
++		pg_noresult(req, "No results found.");
+ 		return;
+ 	}
+ 
+@@ -642,6 +646,8 @@ pg_searchres(const struct req *req, stru
+ 		priouse = 20;
+ 		archpriouse = 3;
+ 		for (i = 0; i < sz; i++) {
++			if (r[i].sec == 10)
++				continue;
+ 			sec = r[i].file;
+ 			sec += strcspn(sec, "123456789");
+ 			if (sec[0] == '\0')
+@@ -681,6 +687,8 @@ pg_searchres(const struct req *req, stru
+ 	if (sz > 1) {
+ 		puts("<table class=\"results\">");
+ 		for (i = 0; i < sz; i++) {
++			if (r[i].sec == 10)
++				continue;
+ 			printf("  <tr>\n"
+ 			       "    <td>"
+ 			       "<a class=\"Xr\" href=\"/");
diff --git a/system/mandoc/configure.patch b/system/mandoc/configure.patch
new file mode 100644
index 000000000..2fda25409
--- /dev/null
+++ b/system/mandoc/configure.patch
@@ -0,0 +1,21 @@
+--- mandoc-1.14.5/test-recvmsg.c	2019-03-10 04:56:43.000000000 -0500
++++ mandoc-1.14.5/test-recvmsg.c	2020-06-04 20:08:33.420299034 -0500
+@@ -4,5 +4,6 @@
+ int
+ main(void)
+ {
+-	return recvmsg(-1, NULL, 0) != -1;
++	struct msghdr buf;
++	return recvmsg(-1, &buf, 0) != -1;
+ }
+--- mandoc-1.14.5/configure	2019-03-10 04:56:43.000000000 -0500
++++ mandoc-1.14.5/configure	2020-06-04 20:03:24.790295729 -0500
+@@ -41,7 +41,7 @@ OSENUM=
+ OSNAME=
+ UTF8_LOCALE=
+ 
+-CC=`printf "all:\\n\\t@echo \\\$(CC)\\n" | env -i make -sf -`
++CC=cc
+ CFLAGS=
+ LDADD=
+ LDFLAGS=
diff --git a/system/mandoc/doc.patch b/system/mandoc/doc.patch
new file mode 100644
index 000000000..955a5f205
--- /dev/null
+++ b/system/mandoc/doc.patch
@@ -0,0 +1,132 @@
+--- mandoc-1.14.5/mandoc.1	2019-03-10 04:56:43.000000000 -0500
++++ mandoc-1.14.5/mandoc.1	2020-06-05 02:12:50.320533119 -0500
+@@ -897,7 +897,7 @@ An
+ macro references a manual page that is not found in the base system.
+ The path to look for base system manuals is configurable at compile
+ time and defaults to
+-.Pa /usr/share/man : /usr/X11R6/man .
++.Pa /usr/share/man .
+ .El
+ .Ss Style suggestions
+ .Bl -ohang
+--- mandoc-1.14.5/mandoc.db.5	2019-03-10 04:56:43.000000000 -0500
++++ mandoc-1.14.5/mandoc.db.5	2020-06-05 02:14:48.380534383 -0500
+@@ -189,10 +189,6 @@ followed by the number 0.
+ .Bl -tag -width /usr/share/man/mandoc.db -compact
+ .It Pa /usr/share/man/mandoc.db
+ The manual page database for the base system.
+-.It Pa /usr/X11R6/man/mandoc.db
+-The same for the
+-.Xr X 7
+-Window System.
+ .It Pa /usr/local/man/mandoc.db
+ The same for
+ .Xr packages 7 .
+--- mandoc-1.14.5/man.conf.5	2019-03-10 04:56:43.000000000 -0500
++++ mandoc-1.14.5/man.conf.5	2020-06-05 02:11:34.650532308 -0500
+@@ -117,7 +117,6 @@ installing it is equivalent to not havin
+ file at all.
+ .Bd -literal -offset indent
+ manpath /usr/share/man
+-manpath /usr/X11R6/man
+ manpath /usr/local/man
+ .Ed
+ .Sh SEE ALSO
+
+--- mandoc-1.14.5/man.1	2019-03-10 04:56:43.000000000 -0500
++++ mandoc-1.14.5/man.1	2020-06-05 02:51:15.910557811 -0500
+@@ -174,28 +174,32 @@ Only select manuals from the specified
+ The currently available sections are:
+ .Pp
+ .Bl -tag -width "localXXX" -offset indent -compact
++.It 0p
++POSIX C headers.
+ .It 1
+ General commands
+ .Pq tools and utilities .
++.It 1p
++POSIX commands.
+ .It 2
+ System calls and error numbers.
+ .It 3
+ Library functions.
+ .It 3p
++POSIX C library functions.
++.It 3pm
+ .Xr perl 1
+ programmer's reference guide.
+ .It 4
+ Device drivers.
+ .It 5
+-File formats.
++File formats and configuration files.
+ .It 6
+ Games.
+ .It 7
+-Miscellaneous information.
++Overview, conventions, and miscellaneous information.
+ .It 8
+ System maintenance and operation commands.
+-.It 9
+-Kernel internals.
+ .El
+ .Pp
+ If not specified and a match is found in more than one section,
+--- mandoc-1.14.5/man.cgi.8	2019-03-10 04:56:43.000000000 -0500
++++ mandoc-1.14.5/man.cgi.8	2020-06-05 16:26:12.541081488 -0500
+@@ -342,7 +342,7 @@ page to acquire the named parameters it
+ .El
+ .Sh FILES
+ .Bl -tag -width Ds
+-.It Pa /var/www
++.It Pa /var/lib/mandoc-cgi
+ Default web server
+ .Xr chroot 2
+ directory.
+@@ -366,13 +366,7 @@ This is part of the web server configura
+ A style sheet for
+ .Xr mandoc 1
+ HTML styling, referenced from each generated HTML page.
+-.It Pa /man
+-Default
+-.Nm
+-data directory containing all the manual trees.
+-Can be overridden by
+-.Dv MAN_DIR .
+-.It Pa /man/manpath.conf
++.It Pa /manpath.conf
+ The list of available manpaths, one per line.
+ If any of the lines in this file contains a slash
+ .Pq Sq /
+@@ -380,13 +374,13 @@ or any character not contained in the
+ .Sx Restricted character set ,
+ .Nm
+ reports an internal server error and exits without doing anything.
+-.It Pa /man/header.html
++.It Pa /header.html
+ An optional file containing static HTML code to be inserted right
+ after opening the <BODY> element.
+-.It Pa /man/footer.html
++.It Pa /footer.html
+ An optional file containing static HTML code to be inserted right
+ before closing the <BODY> element.
+-.It Pa /man/OpenBSD-current/man1/mandoc.1
++.It Pa /OpenBSD-current/man1/mandoc.1
+ An example
+ .Xr mdoc 7
+ source file located below the
+--- mandoc-1.14.5/soelim.1	2019-03-10 04:56:43.000000000 -0500
++++ mandoc-1.14.5/soelim.1	2020-06-05 16:38:40.101089494 -0500
+@@ -25,10 +25,10 @@
+ .\" SUCH DAMAGE.
+ .\"
+ .Dd $Mdocdate: July 4 2017 $
+-.Dt SOELIM 1
++.Dt MANDOC-SOELIM 1
+ .Os
+ .Sh NAME
+-.Nm soelim
++.Nm mandoc-soelim
+ .Nd interpret .so requests in manpages
+ .Sh SYNOPSIS
+ .Nm
diff --git a/system/mandoc/empty-tbl-null-deref.patch b/system/mandoc/empty-tbl-null-deref.patch
new file mode 100644
index 000000000..3e14ce32b
--- /dev/null
+++ b/system/mandoc/empty-tbl-null-deref.patch
@@ -0,0 +1,62 @@
+From mboxrd@z Thu Jan  1 00:00:00 1970
+Received: from localhost (fantadrom.bsd.lv [local])
+	by fantadrom.bsd.lv (OpenSMTPD) with ESMTPA id 25e99424
+	for <source@mandoc.bsd.lv>;
+	Mon, 18 Mar 2019 03:01:04 -0500 (EST)
+Date: Mon, 18 Mar 2019 03:01:04 -0500 (EST)
+X-Mailinglist: mandoc-source
+Reply-To: source@mandoc.bsd.lv
+MIME-Version: 1.0
+From: schwarze@mandoc.bsd.lv
+To: source@mandoc.bsd.lv
+Subject: mandoc: fix a NULL pointer access on empty tbl(7) data cells that 
+X-Mailer: activitymail 1.26, http://search.cpan.org/dist/activitymail/
+Content-Type: text/plain; charset=utf-8
+Message-ID: <e3f22222366ad31d@fantadrom.bsd.lv>
+Archived-At: <http://inbox.vuxu.org/mandoc-source/e3f22222366ad31d@fantadrom.bsd.lv/>
+List-Archive: <http://inbox.vuxu.org/mandoc-source/>
+List-Post: <mailto:source@mandoc.bsd.lv>
+
+Log Message:
+-----------
+fix a NULL pointer access on empty tbl(7) data cells
+that bentley@ found in syncthing-bep(7)
+
+Modified Files:
+--------------
+    mandoc:
+        tbl_term.c
+
+Revision Data
+-------------
+Index: tbl_term.c
+===================================================================
+RCS file: /home/cvs/mandoc/mandoc/tbl_term.c,v
+retrieving revision 1.69
+retrieving revision 1.70
+diff -Ltbl_term.c -Ltbl_term.c -u -p -r1.69 -r1.70
+--- a/tbl_term.c
++++ b/tbl_term.c
+@@ -629,7 +629,8 @@ tbl_hrule(struct termp *tp, const struct
+ 
+ 		lw = cpp == NULL || cpn == NULL ||
+ 		    (cpn->pos != TBL_CELL_DOWN &&
+-		     (dpn == NULL || strcmp(dpn->string, "\\^") != 0))
++		     (dpn == NULL || dpn->string == NULL ||
++		      strcmp(dpn->string, "\\^") != 0))
+ 		    ? hw : 0;
+ 		tbl_direct_border(tp, BHORIZ * lw,
+ 		    col->width + col->spacing / 2);
+@@ -675,7 +676,8 @@ tbl_hrule(struct termp *tp, const struct
+ 
+ 		rw = cpp == NULL || cpn == NULL ||
+ 		    (cpn->pos != TBL_CELL_DOWN &&
+-		     (dpn == NULL || strcmp(dpn->string, "\\^") != 0))
++		     (dpn == NULL || dpn->string == NULL ||
++		      strcmp(dpn->string, "\\^") != 0))
+ 		    ? hw : 0;
+ 
+ 		/* The line crossing at the end of this column. */
+--
+ To unsubscribe send an email to source+unsubscribe@mandoc.bsd.lv
+
diff --git a/system/mandoc/less.patch b/system/mandoc/less.patch
new file mode 100644
index 000000000..19d567365
--- /dev/null
+++ b/system/mandoc/less.patch
@@ -0,0 +1,58 @@
+Default to using less(1) instead of more(1) if MANPAGER and PAGER are
+unset, and also set a pretty prompt and smart case searching like man-db
+does if less is used as a pager.
+
+The name of the manpage is not available in the scope of the patched
+function - maybe add it at some point.
+
+--- mandoc-1.14.5/main.c	2019-03-10 04:56:43.000000000 -0500
++++ mandoc-1.14.5/main.c	2020-06-05 01:59:10.640524340 -0500
+@@ -1170,8 +1170,9 @@ spawn_pager(struct tag_files *tag_files)
+ 	pager = getenv("MANPAGER");
+ 	if (pager == NULL || *pager == '\0')
+ 		pager = getenv("PAGER");
+-	if (pager == NULL || *pager == '\0')
+-		pager = "more -s";
++	if (pager == NULL || *pager == '\0') {
++		pager = "less";
++	}
+ 	cp = mandoc_strdup(pager);
+ 
+ 	/*
+@@ -1195,10 +1196,24 @@ spawn_pager(struct tag_files *tag_files)
+ 	/* For less(1), use the tag file. */
+ 
+ 	use_ofn = 1;
+-#if HAVE_LESS_T
+ 	if ((cmdlen = strlen(argv[0])) >= 4) {
+ 		cp = argv[0] + cmdlen - 4;
+ 		if (strcmp(cp, "less") == 0) {
++			/*
++			 * Set a few options like man-db does.
++			 * -i: smart case search
++			 * -mPm: set prompt to following string terminated by $
++			 */
++			argv[argc++] = "-imPm" \
++				" Manual page" \
++				/*
++				 * print " (END)" if EOF, else % in file followed by % sign.
++				 * ?X if X:else not X.
++				 */
++				"?e (END):?pB %pB\\%.. " \
++				"(press h for help or q to quit)" \
++				"$";
++#if HAVE_LESS_T
+ 			argv[argc++] = mandoc_strdup("-T");
+ 			argv[argc++] = tag_files->tfn;
+ 			if (tag_files->tagname != NULL) {
+@@ -1206,9 +1221,9 @@ spawn_pager(struct tag_files *tag_files)
+ 				argv[argc++] = tag_files->tagname;
+ 				use_ofn = 0;
+ 			}
++#endif
+ 		}
+ 	}
+-#endif
+ 	if (use_ofn)
+ 		argv[argc++] = tag_files->ofn;
+ 	argv[argc] = NULL;
diff --git a/system/mandoc/mandoc.post-deinstall b/system/mandoc/mandoc.post-deinstall
new file mode 100644
index 000000000..0a8d5b9df
--- /dev/null
+++ b/system/mandoc/mandoc.post-deinstall
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+exec rm -f /usr/share/man/mandoc.db 2>/dev/null
diff --git a/system/mandoc/mandoc.trigger b/system/mandoc/mandoc.trigger
new file mode 100644
index 000000000..34fc1decc
--- /dev/null
+++ b/system/mandoc/mandoc.trigger
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+exec makewhatis -a -T utf8 "$@"
diff --git a/system/mandoc/tbl-colwidth-oob.patch b/system/mandoc/tbl-colwidth-oob.patch
new file mode 100644
index 000000000..0b7b0acad
--- /dev/null
+++ b/system/mandoc/tbl-colwidth-oob.patch
@@ -0,0 +1,62 @@
+From mboxrd@z Thu Jan  1 00:00:00 1970
+Received: from localhost (fantadrom.bsd.lv [local])
+	by fantadrom.bsd.lv (OpenSMTPD) with ESMTPA id 0ff00a97
+	for <source@mandoc.bsd.lv>;
+	Fri, 29 Mar 2019 16:27:36 -0500 (EST)
+Date: Fri, 29 Mar 2019 16:27:36 -0500 (EST)
+X-Mailinglist: mandoc-source
+Reply-To: source@mandoc.bsd.lv
+MIME-Version: 1.0
+From: schwarze@mandoc.bsd.lv
+To: source@mandoc.bsd.lv
+Subject: mandoc: Set the maximum column index in a tbl(7) to the maximum *right* 
+X-Mailer: activitymail 1.26, http://search.cpan.org/dist/activitymail/
+Content-Type: text/plain; charset=utf-8
+Message-ID: <e3fceff42218668d@fantadrom.bsd.lv>
+Archived-At: <http://inbox.vuxu.org/mandoc-source/e3fceff42218668d@fantadrom.bsd.lv/>
+List-Archive: <http://inbox.vuxu.org/mandoc-source/>
+List-Post: <mailto:source@mandoc.bsd.lv>
+
+Log Message:
+-----------
+Set the maximum column index in a tbl(7) to the maximum *right* edge 
+of any cell span, not to the maximum *left* edge, which may be smaller 
+if the last column of the table is only reached by horizontal spans,
+but not by any regular cell in any row of the table.
+Otherwise, the algorithm calculating column widths accessed memomy
+after the end of the colwidth[] array, while it was trying to handle 
+the rightmost column(s).
+
+Crash reported by Jason Thorpe <thorpej at NetBSD>
+via https://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=54069
+and via Thomas Klausner (wiz@).
+Christos@ Zoulas sent a (correct, but slightly confusing) patch.
+The patch i'm committing here is easier to understand.
+
+Modified Files:
+--------------
+    mandoc:
+        out.c
+
+Revision Data
+-------------
+Index: out.c
+===================================================================
+RCS file: /home/cvs/mandoc/mandoc/out.c,v
+retrieving revision 1.77
+retrieving revision 1.78
+diff -Lout.c -Lout.c -u -p -r1.77 -r1.78
+--- a/out.c
++++ b/out.c
+@@ -149,7 +149,7 @@ tblcalc(struct rofftbl *tbl, const struc
+ 		gp = &first_group;
+ 		for (dp = sp->first; dp != NULL; dp = dp->next) {
+ 			icol = dp->layout->col;
+-			while (icol > maxcol)
++			while (maxcol < icol + dp->hspans)
+ 				tbl->cols[++maxcol].spacing = SIZE_MAX;
+ 			col = tbl->cols + icol;
+ 			col->flags |= dp->layout->flags;
+--
+ To unsubscribe send an email to source+unsubscribe@mandoc.bsd.lv
+