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Message-ID: <6EA09345485B52EFE6F64A885C95538E@a-b.xyz>
To: 9front@9front.org
Subject: upas/marshal fix extension parsing
Date: Fri, 22 Nov 2019 12:27:54 +0100
From: kvik@a-b.xyz
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While handling attachments upas/marshal first looks at the
file extension which it matches against a built-in list and
then against the system mimelist.

Both of those currently contain only single-component
extensions such as '.tgz' but marshal uses anything after the
first '.' in the name as an extension, probably in
anticipation for '.tar.gz' and similar.

This patch changes marshal to match the last '.' delimited
component.
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diff -r 8b2040ba4785 sys/src/cmd/upas/marshal/marshal.c
--- a/sys/src/cmd/upas/marshal/marshal.c	Fri Nov 22 17:29:35 2019 +1030
+++ b/sys/src/cmd/upas/marshal/marshal.c	Fri Nov 22 11:59:56 2019 +0100
@@ -902,7 +902,7 @@
 	}
 
 	/* pick a type depending on extension */
-	p = strchr(file, '.');
+	p = strrchr(file, '.');
 	if(p != nil)
 		p++;
 
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