From 3b1abc890c2ab4df1321a88487119e132e262faf Mon Sep 17 00:00:00 2001
From: Aaron Paterson <9441877+MayCXC@users.noreply.github.com>
Date: Wed, 9 Oct 2024 01:43:45 -0400
Subject: [PATCH] add FilesWithNames()

---
 activation/files_unix.go | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/activation/files_unix.go b/activation/files_unix.go
index bf7671dd..29c27000 100644
--- a/activation/files_unix.go
+++ b/activation/files_unix.go
@@ -68,3 +68,22 @@ func Files(unsetEnv bool) []*os.File {
 
 	return files
 }
+
+// FilesWithNames maps fd names to a set of os.File pointers.
+func FilesWithNames() map[string][]*os.File {
+	files := activation.Files(true)
+	filesWithNames := map[string][]*os.File{}
+
+	for _, f := range files {
+		current, ok := filesWithNames[f.Name()]
+
+		if !ok {
+			current = []*os.File{}
+			filesWithNames[f.Name()] = current
+		}
+
+		filesWithNames[f.Name()] = append(current, f)
+	}
+
+	return filesWithNames
+}