1 files changed, 28 insertions, 0 deletions
diff --git a/libpathod/utils.py b/libpathod/utils.py
index 110a7170..d4160a23 100644
--- a/libpathod/utils.py
+++ b/libpathod/utils.py
@@ -1,4 +1,5 @@
 import os
+import sys
 from netlib import tcp
 
 SSLVERSIONS = {
@@ -110,3 +111,30 @@ class Data:
 
 
 data = Data(__name__)
+
+def daemonize(stdin='/dev/null', stdout='/dev/null', stderr='/dev/null'):
+    try:
+        pid = os.fork()
+        if pid > 0:
+            sys.exit(0)
+    except OSError, e:
+        sys.stderr.write("fork #1 failed: (%d) %s\n" % (e.errno, e.strerror))
+        sys.exit(1)
+    os.chdir("/")
+    os.umask(0)
+    os.setsid()
+    try:
+        pid = os.fork()
+        if pid > 0:
+            sys.exit(0)
+    except OSError, e:
+        sys.stderr.write("fork #2 failed: (%d) %s\n" % (e.errno, e.strerror))
+        sys.exit(1)
+    si = open(stdin, 'rb')
+    so = open(stdout, 'a+b')
+    se = open(stderr, 'a+b', 0)
+    os.dup2(si.fileno(), sys.stdin.fileno())
+    os.dup2(so.fileno(), sys.stdout.fileno())
+    os.dup2(se.fileno(), sys.stderr.fileno())
+
+