From 3eaa6748f0f57eff6b85e3e4a249ccaeccd09bed Mon Sep 17 00:00:00 2001
From: Mattias Andrée <maandree@kth.se>
Date: Mon, 11 Jul 2016 16:40:53 +0200
Subject: Close file descriptors
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Signed-off-by: Mattias Andrée <maandree@kth.se>
---
 src/gammad.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/gammad.c b/src/gammad.c
index 9534f9f..5450399 100644
--- a/src/gammad.c
+++ b/src/gammad.c
@@ -17,6 +17,7 @@
  */
 #include <libgamma.h>
 
+#include <sys/resource.h>
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/un.h>
@@ -430,7 +431,16 @@ int main(int argc, char** argv)
   if (argc > 0)
     usage();
   
-  /* TODO Close all file descriptors above stderr */
+  /* Close all file descriptors above stderr */
+  {
+    struct rlimit rlimit;
+    if (getrlimit(RLIMIT_NOFILE, &rlimit) || (rlimit.rlim_cur == RLIM_INFINITY))
+      n = 4 << 10;
+    else
+      n = (size_t)(rlimit.rlim_cur);
+    for (i = STDERR_FILENO + 1; i < n; i++)
+      close((int)i);
+  }
   
   /* Set umask, reset signal handlers, and reset signal mask */
   umask(0);
-- 
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