[9front] ape/_errno: ENOENT

[Benjamin Riefenstahl <b.riefenstahl@turtle-trading.net>]

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Tcl checks errno==ENOENT for its equivalent of "rm -f", but APE does not
recognize the errstr for that.

If somebody knows where the code for this is, we could add comment with
a pointer to that source.  Also, is there a way to find more omissions
like this?


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from postmaster@4ess:
The following attachment had content that we can't
prove to be harmless.  To avoid possible automatic
execution, we changed the content headers.
The original header was:

	Content-Type: text/x-diff
	Content-Disposition: inline;
 filename="0003-ape-_errno.c-(map)-add-another-ENOENT.patch"

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From: Benjamin Riefenstahl <b.riefenstahl@turtle-trading.net>
Date: Sat, 25 Dec 2021 13:59:59 +0000
Subject: [PATCH] ape/_errno.c (map): add another ENOENT


Many programs check this particular errno.
---
diff dd7ad4725c5dfb26ad44e8e4206116f96f054ba4 f96fae96efebf3eb7917e2c0b55439db2b242f79
--- a/sys/src/ape/lib/ap/plan9/_errno.c	Fri Dec 10 21:47:09 2021
+++ b/sys/src/ape/lib/ap/plan9/_errno.c	Sat Dec 25 14:59:59 2021
@@ -102,6 +102,8 @@
 	{EOPNOTSUPP,	"operation not supported"},
 	{EADDRINUSE,	"address in use"},
 	{EGREG,		"unnamed error message"},
+
+	{ENOENT,	"No such file"},
 };
 
 #define NERRMAP	(sizeof(map)/sizeof(struct errmap))

-- 
1.0