From 550361815d6a1cf261e99ad2b430433ef6966e1a Mon Sep 17 00:00:00 2001
From: Max Rees <maxcrees@me.com>
Date: Fri, 5 Jun 2020 16:45:20 -0500
Subject: system/mandoc: new package

---
 system/mandoc/cgi-gz.patch | 77 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 system/mandoc/cgi-gz.patch

(limited to 'system/mandoc/cgi-gz.patch')

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(
-- 
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