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[tor-commits] [tor/master] Introduce tor_terminate_process() function.



commit 782810a8bf1fbc3feaca851a011a8124891d39fc
Author: George Kadianakis <desnacked@xxxxxxxxx>
Date:   Sun Sep 11 20:26:01 2011 +0200

    Introduce tor_terminate_process() function.
---
 src/common/util.c |   26 ++++++++++++++++++++++++++
 src/common/util.h |    1 +
 2 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/src/common/util.c b/src/common/util.c
index 0632c67..63172c3 100644
--- a/src/common/util.c
+++ b/src/common/util.c
@@ -28,6 +28,7 @@
 #include <direct.h>
 #include <process.h>
 #include <tchar.h>
+#include <Winbase.h>
 #else
 #include <dirent.h>
 #include <pwd.h>
@@ -43,6 +44,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <assert.h>
+#include <signal.h>
 
 #ifdef HAVE_NETINET_IN_H
 #include <netinet/in.h>
@@ -2930,6 +2932,30 @@ format_helper_exit_status(unsigned char child_state, int saved_errno,
 /* Maximum number of file descriptors, if we cannot get it via sysconf() */
 #define DEFAULT_MAX_FD 256
 
+/** Terminate process running at PID <b>pid</b>.
+ *  Code borrowed from Python's os.kill. */
+int
+tor_terminate_process(pid_t pid)
+{
+#ifdef MS_WINDOWS
+  DWORD pid_win = pid;
+  DWORD err;
+  HANDLE handle;
+  /* If the signal is outside of what GenerateConsoleCtrlEvent can use,
+     attempt to open and terminate the process. */
+  handle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, pid);
+  if (handle == NULL)
+    return -1;
+
+  if (TerminateProcess(handle, sig) == 0)
+    return -1;
+  else
+    return 0;
+#else /* *nix */
+  return kill(pid, SIGTERM);
+#endif
+}
+
 #define CHILD_STATE_INIT 0
 #define CHILD_STATE_PIPE 1
 #define CHILD_STATE_MAXFD 2
diff --git a/src/common/util.h b/src/common/util.h
index 8bf4f7b..7e889b1 100644
--- a/src/common/util.h
+++ b/src/common/util.h
@@ -350,6 +350,7 @@ void write_pidfile(char *filename);
 void tor_check_port_forwarding(const char *filename,
                                int dir_port, int or_port, time_t now);
 
+int tor_terminate_process(pid_t pid);
 int tor_spawn_background(const char *const filename, int *stdout_read,
                          int *stderr_read, const char **argv,
                          const char **envp);



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