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authorJohn Klug <john.klug@multitech.com>2018-07-31 17:48:08 -0500
committerJohn Klug <john.klug@multitech.com>2018-07-31 17:48:08 -0500
commitb5dd8c128624cb77576d692b68e24691d4d9a96d (patch)
tree4a0cc0a718fa98582fd70719a83b826c2d990cf5 /scripts/swabber-strace-attach
parente08c220730d5da161a746d811268eb1550beb856 (diff)
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Diffstat (limited to 'scripts/swabber-strace-attach')
-rwxr-xr-xscripts/swabber-strace-attach31
1 files changed, 31 insertions, 0 deletions
diff --git a/scripts/swabber-strace-attach b/scripts/swabber-strace-attach
new file mode 100755
index 0000000..bb0391a
--- /dev/null
+++ b/scripts/swabber-strace-attach
@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+import os
+import sys
+import subprocess
+
+# Detach from the controlling terminal and parent process by forking twice to daemonize ourselves,
+# then run the command passed as argv[1]. Send log data to argv[2].
+
+pid = os.fork()
+if (pid == 0):
+ os.setsid()
+ pid = os.fork()
+ if (pid != 0):
+ os._exit(0)
+else:
+ sys.exit()
+
+
+si = file(os.devnull, 'r')
+so = file(sys.argv[2], 'w')
+se = so
+
+# Replace those fds with our own
+os.dup2(si.fileno(), sys.stdin.fileno())
+os.dup2(so.fileno(), sys.stdout.fileno())
+os.dup2(se.fileno(), sys.stderr.fileno())
+
+ret = subprocess.call(sys.argv[1], shell=True)
+
+os._exit(ret)
+