From 6920fcc891ad2579f38bfaa78385604ef1aac8b6 Mon Sep 17 00:00:00 2001
From: Simon Eisenmann <simon@longsleep.org>
Date: Thu, 11 Feb 2016 21:02:27 +0100
Subject: [PATCH] Fix wrong type for syscall.Setrlimit on FreeBSD (#244) Values
 are uint64 on Unix but FreeBSD uses int64 for legacy reasons.

---
 src/app/spreed-webrtc-server/main.go          |  6 +++---
 src/app/spreed-webrtc-server/types_freebsd.go | 11 +++++++++++
 src/app/spreed-webrtc-server/types_unix.go    |  8 ++++++++
 3 files changed, 22 insertions(+), 3 deletions(-)
 create mode 100644 src/app/spreed-webrtc-server/types_freebsd.go
 create mode 100644 src/app/spreed-webrtc-server/types_unix.go

diff --git a/src/app/spreed-webrtc-server/main.go b/src/app/spreed-webrtc-server/main.go
index ca785a64..ee97ef4b 100644
--- a/src/app/spreed-webrtc-server/main.go
+++ b/src/app/spreed-webrtc-server/main.go
@@ -367,13 +367,13 @@ func runner(runtime phoenix.Runtime) error {
 	// Try to increase number of file open files. This only works as root.
 	maxfd, err := runtime.GetInt("http", "maxfd")
 	if err == nil {
-		rLimit.Max = uint64(maxfd)
-		rLimit.Cur = uint64(maxfd)
+		rLimit.Max = rlimitType(maxfd)
+		rLimit.Cur = rlimitType(maxfd)
 		err = syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rLimit)
 		if err != nil {
 			log.Println("Error setting max open files", err)
 		} else {
-			log.Printf("Set max open files successfully to %d\n", uint64(maxfd))
+			log.Printf("Set max open files successfully to %d\n", rlimitType(maxfd))
 		}
 	}
 
diff --git a/src/app/spreed-webrtc-server/types_freebsd.go b/src/app/spreed-webrtc-server/types_freebsd.go
new file mode 100644
index 00000000..996476ad
--- /dev/null
+++ b/src/app/spreed-webrtc-server/types_freebsd.go
@@ -0,0 +1,11 @@
+// +build freebsd
+
+package main
+
+// Rlimit values are int64 in FreeBSD.
+// https://golang.org/src/syscall/ztypes_freebsd_amd64.go
+// Intentionally signed, because of legacy code that uses -1 for
+// RLIM_INFINITY.
+func rlimitType(value int) int64 {
+	return int64(value)
+}
diff --git a/src/app/spreed-webrtc-server/types_unix.go b/src/app/spreed-webrtc-server/types_unix.go
new file mode 100644
index 00000000..d4e6abf8
--- /dev/null
+++ b/src/app/spreed-webrtc-server/types_unix.go
@@ -0,0 +1,8 @@
+// +build !freebsd
+
+package main
+
+// On Unix, rLimit values are uint64.
+func rlimitType(value int) uint64 {
+	return uint64(value)
+}