- Reap the child process that libunbound spawns.

git-svn-id: file:///svn/unbound/trunk@3473 be551aaa-1e26-0410-a405-d3ace91eadb9

doc/Changelog

@@ -1,6 +1,7 @@
 13 August 2015: Wouter
 	- 5011 implementation does not insist on all algorithms, when
 	  harden-algo-downgrade is turned off.
+	- Reap the child process that libunbound spawns.
 
 11 August 2015: Wouter
 	- Fix #694: configure script does not detect LibreSSL 2.2.2

libunbound/libunbound.c

@@ -65,6 +65,7 @@
 #ifdef HAVE_PTHREAD
 #include <signal.h>
 #endif
+#include <sys/wait.h>
 
 #if defined(UB_ON_WINDOWS) && defined (HAVE_WINDOWS_H)
 #include <windows.h>
@@ -218,6 +219,10 @@ static void ub_stop_bg(struct ub_ctx* ctx)
 			ub_thread_join(ctx->bg_tid);
 		} else {
 			lock_basic_unlock(&ctx->cfglock);
+			if(waitpid(ctx->bg_pid, NULL, 0) == -1) {
+				if(verbosity > 2)
+					log_err("waitpid: %s", strerror(errno));
+			}
 		}
 	}
 	else {