Package: apt

Version: 2.6.1

When I run "apt-get install with a long path",  the following error is reported: "Could not create temporary file for ...long_path..._Packages - mkstemp (36: File name too long)"

How about fix with the following patch?

From 918295aa1320718d342116f76c98d2289d377800 Mon Sep 17 00:00:00 2001
From: Changqing Li <changqing...@windriver.com>
Date: Tue, 18 Jun 2024 10:32:55 +0800
Subject: [PATCH] strutl.cc: the filename can't be longer than 255

The URItoFileName translates the path into the filename, but the
filename can't be longer than 255 according to
/usr/include/linux/limits.h.

Truncate it when it is longer than 240 (leave some spaces for
".Packages" and "._Release" suffix)

Signed-off-by: Robert Yang <liezhi.y...@windriver.com>
Signed-off-by: Changqing Li <changqing...@windriver.com>
---
 apt-pkg/contrib/strutl.cc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/apt-pkg/contrib/strutl.cc b/apt-pkg/contrib/strutl.cc
index 67100f1..5076b35 100644
--- a/apt-pkg/contrib/strutl.cc
+++ b/apt-pkg/contrib/strutl.cc
@@ -565,7 +565,12 @@ string URItoFileName(const string &URI)
    // "\x00-\x20{}|\\\\^\\[\\]<>\"\x7F-\xFF";
    string NewURI = QuoteString(U,"\\|{}[]<>\"^~_=!@#$%^&*");
    replace(NewURI.begin(),NewURI.end(),'/','_');
-   return NewURI;
+
+   // Truncate from the head when it is longer than 240
+   if(NewURI.length() > 240)
+       return NewURI.substr(NewURI.length() - 240, NewURI.length() - 1);
+   else
+       return NewURI;
 }
                                     /*}}}*/
 // Base64Encode - Base64 Encoding routine for short strings  /*{{{*/
--
2.25.1

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