From f856f3bf232fc935e3a80f0e7bad0747d0e4017b Mon Sep 17 00:00:00 2001
From: Jan Tojnar <jtojnar@gmail.com>
Date: Sat, 16 Dec 2017 16:22:28 +0100
Subject: [PATCH] libpcap: increase maximum snapshot length for dbus

DBus packet size can be bigger than the size allowed by libpcap,
which breaks applications like bustle.

The issue was fixed upstream so we are backporting the commits.

https://github.com/wjt/bustle/issues/4
---
 pkgs/development/libraries/libpcap/default.nix | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/pkgs/development/libraries/libpcap/default.nix b/pkgs/development/libraries/libpcap/default.nix
index 0cd9d758725..bef5f9a9da3 100644
--- a/pkgs/development/libraries/libpcap/default.nix
+++ b/pkgs/development/libraries/libpcap/default.nix
@@ -26,6 +26,15 @@ stdenv.mkDerivation rec {
       url    = "https://sources.debian.net/data/main/libp/libpcap/1.8.1-3/debian/patches/disable-remote.diff";
       sha256 = "0dvjax9c0spvq8cdjnkbnm65wlzaml259yragf95kzg611vszfmj";
     })
+    # See https://github.com/wjt/bustle/commit/f62cf6bfa662af4ae39effbbd4891bc619e3b4e9
+    (fetchpatch {
+      url    = "https://github.com/the-tcpdump-group/libpcap/commit/2be9c29d45fb1fab8e9549342a30c160b7dea3e1.patch";
+      sha256 = "1g8mh942vr0abn48g0bdvi4gmhq1bz0l80276603y7064qhy3wq5";
+    })
+    (fetchpatch {
+      url    = "https://github.com/the-tcpdump-group/libpcap/commit/1a6b088a88886eac782008f37a7219a32b86da45.patch";
+      sha256 = "1n5ylm7ch3i1lh4y2q16b0vabgym8g8mqiqxpqcdkjdn05c1wflr";
+    })
   ];
 
   preInstall = ''mkdir -p $out/bin'';