From 251c577cb8ea1dbc207cc8fd054f0836128d1548 Mon Sep 17 00:00:00 2001
From: Ian Gulliver <flamingcow@gmail.com>
Date: Thu, 10 Mar 2016 22:15:22 -0800
Subject: [PATCH] Print a bunch of runtime data

---
 sinks/adsb-ws/main.go | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/sinks/adsb-ws/main.go b/sinks/adsb-ws/main.go
index 9ed1995..2058202 100644
--- a/sinks/adsb-ws/main.go
+++ b/sinks/adsb-ws/main.go
@@ -4,8 +4,24 @@ import (
 	"flag"
 	"log"
 	"net/http"
+	"os"
+	"runtime"
 )
 
+// #cgo LDFLAGS: -lcap
+// #include <assert.h>
+// #include <stdlib.h>
+// #include <sys/capability.h>
+// const char *get_caps_str() {
+//	cap_t caps = cap_get_proc();
+//	assert(caps);
+//	char *caps_str = cap_to_text(caps, NULL);
+//	assert(caps_str);
+//	assert(!cap_free(caps));
+//	return caps_str;
+// }
+import "C"
+
 var bindaddr = flag.String("bind-address", ":8080", "Address to respond to HTTP requests on")
 var staticdir = flag.String("static-dir", "", "Static directory to serve at /")
 
@@ -13,6 +29,16 @@ func main() {
 	log.SetFlags(0)
 	log.SetPrefix("{adsb-ws} ")
 	flag.Parse()
+
+	caps_str := C.get_caps_str()
+	log.Printf("Runtime data:")
+	log.Printf("\tgo_version: %s", runtime.Version())
+	log.Printf("\tgo_compiler: %s", runtime.Compiler)
+	log.Printf("\tgo_arch: %s", runtime.GOARCH)
+	log.Printf("\tgo_os: %s", runtime.GOOS)
+	log.Printf("\tprocess_id: %d", os.Getpid())
+	log.Printf("\tcapabilities: %s", C.GoString(caps_str))
+
 	go h.run()
 	go readInput()