nettrace: various fixes

1 files changed, 5 insertions, 0 deletions

diff --git a/src/fnettrace/main.c b/src/fnettrace/main.c
index 56974e79c..f57aa6c87 100644
--- a/src/fnettrace/main.c
+++ b/src/fnettrace/main.c
@@ -21,6 +21,8 @@
 #include "radix.h"
 #include <limits.h>
 #include <sys/ioctl.h>
+#include <sys/prctl.h>
+#include <signal.h>
 #define MAX_BUF_SIZE (64 * 1024)
 
 static int arg_netfilter = 0;
@@ -732,6 +734,9 @@ int main(int argc, char **argv) {
                 return 1;
         }
 
+        // kill the process if the parent died
+        prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
+
         ansi_clrscr();
         if (arg_netfilter)
                 logprintf("starting network lockdown\n");