Simplify the code and the server setup by deleting the pseudo-manpath

"mandoc" that was used for man.cgi(8) documentation and by assuming
that the apropos(1) and man.cgi(8) manuals are simply installed in
the default manpath.  Even though man.cgi(8) is not installed by
default when installing OpenBSD, it is easy to copy it into the
default manpath used for man.cgi(8).

Idea found when considering a question asked by wrant dot com.

3 files changed, 13 insertions, 26 deletions

diff --git a/Makefile b/Makefile
index dff08a9d..b42b3709 100644
--- a/Makefile
+++ b/Makefile
@@ -397,12 +397,8 @@ db-install: base-build
 cgi-install: cgi-build
 	mkdir -p $(DESTDIR)$(CGIBINDIR)
 	mkdir -p $(DESTDIR)$(HTDOCDIR)
-	mkdir -p $(DESTDIR)$(WWWPREFIX)/man/mandoc/man1
-	mkdir -p $(DESTDIR)$(WWWPREFIX)/man/mandoc/man8
 	$(INSTALL_PROGRAM) man.cgi $(DESTDIR)$(CGIBINDIR)
 	$(INSTALL_DATA) mandoc.css $(DESTDIR)$(HTDOCDIR)
-	$(INSTALL_MAN) apropos.1 $(DESTDIR)$(WWWPREFIX)/man/mandoc/man1/
-	$(INSTALL_MAN) man.cgi.8 $(DESTDIR)$(WWWPREFIX)/man/mandoc/man8/
 
 Makefile.local config.h: configure ${TESTSRCS}
 	@echo "$@ is out of date; please run ./configure"
diff --git a/cgi.c b/cgi.c
index f9249c0e..1e6737bc 100644
--- a/cgi.c
+++ b/cgi.c
@@ -470,9 +470,6 @@ validate_manpath(const struct req *req, const char* manpath)
 {
 	size_t	 i;
 
-	if ( ! strcmp(manpath, "mandoc"))
-		return 1;
-
 	for (i = 0; i < req->psz; i++)
 		if ( ! strcmp(manpath, req->p[i]))
 			return 1;
@@ -499,9 +496,9 @@ pg_index(const struct req *req)
 	resp_searchform(req, FOCUS_QUERY);
 	printf("<p>\n"
 	       "This web interface is documented in the\n"
-	       "<a href=\"/%s%smandoc/man8/man.cgi.8\">man.cgi</a>\n"
+	       "<a href=\"/%s%sman.cgi.8\">man.cgi(8)</a>\n"
 	       "manual, and the\n"
-	       "<a href=\"/%s%smandoc/man1/apropos.1\">apropos</a>\n"
+	       "<a href=\"/%s%sapropos.1\">apropos(1)</a>\n"
 	       "manual explains the query syntax.\n"
 	       "</p>\n",
 	       scriptname, *scriptname == '\0' ? "" : "/",
@@ -884,12 +881,7 @@ pg_show(struct req *req, const char *fullpath)
 		free(manpath);
 		return;
 	}
-
-	if (strcmp(manpath, "mandoc")) {
-		free(req->q.manpath);
-		req->q.manpath = manpath;
-	} else
-		free(manpath);
+	free(manpath);
 
 	if ( ! validate_filename(file)) {
 		pg_error_badrequest(
diff --git a/man.cgi.8 b/man.cgi.8
index 30439ca0..45226a57 100644
--- a/man.cgi.8
+++ b/man.cgi.8
@@ -220,13 +220,16 @@ run
 .Pp
 .Dl make man.cgi
 .Pp
-and copy the files to the proper locations.
-Reading the
-.Cm installcgi
-target in the
-.Pa Makefile
-can help with that, but do not run it without carefully checking it
-because the directory layouts of web servers vary greatly.
+and copy the resulting binary to the proper location,
+for example using the command:
+.Pp
+.Dl make installcgi
+.Pp
+In addition to that, make sure the default manpath contains the files
+.Pa man1/apropos.1
+and
+.Pa man8/man.cgi.8 ,
+or the documentation links at the bottom of the index page will not work.
 .Ss URI interface
 .Nm
 uniform resource identifiers are not needed for interactive use,
@@ -367,10 +370,6 @@ Default
 data directory containing all the manual trees.
 Can be overridden by
 .Dv MAN_DIR .
-.It Pa /man/mandoc/man1/apropos.1 , /man/mandoc/man8/man.cgi.8
-Manual pages documenting
-.Nm
-itself, linked from the index page.
 .It Pa /man/manpath.conf
 The list of available manpaths, one per line.
 If any of the lines in this file contains a slash