1 files changed, 56 insertions, 0 deletions
diff --git a/tests/server/util.c b/tests/server/util.c
index 06f3ce10d..8158cb291 100644
--- a/tests/server/util.c
+++ b/tests/server/util.c
@@ -55,6 +55,10 @@
 #define EINVAL  22 /* errno.h value */
 #endif
 
+#if __MINGW32__
+#include <TlHelp32.h>
+#endif
+
 #if defined(ENABLE_IPV6) && defined(__MINGW32__)
 const struct in6_addr in6addr_any = {{ IN6ADDR_ANY_INIT }};
 #endif
@@ -248,6 +252,58 @@ int wait_ms(int timeout_ms)
   return r;
 }
 
+#ifdef __MINGW32__
+/* WORKAROUND
+ *
+ * These functions make it possible to get the Msys PID instead of the
+ * Windows PID assigned to the current process. This is done by walking up
+ * to the Msys sh.exe process that launched the shadow Windows processes.
+ *
+ * Usually an Msys process would result in following process tree:
+ *   sh.exe           <-- waiting Windows process, but running Msys process
+ *     \
+ *     <proc>.exe     <-- waiting Windows process
+ *       \
+ *       <proc>.exe   <-- running Windows process
+ *
+ * Attention: This may not be true for all Msys processes.
+ */
+static pid_t getpid_msys(void)
+{
+  PROCESSENTRY32 entry;
+  HANDLE snapshot;
+  DWORD pid;
+  BOOL walk;
+
+  pid = (DWORD)getpid();
+
+  entry.dwSize = sizeof(PROCESSENTRY32);
+  snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, pid);
+
+  if(snapshot != INVALID_HANDLE_VALUE) {
+    walk = TRUE;
+    while(walk) {
+      if(Process32First(snapshot, &entry)) {
+        do {
+          if(pid == entry.th32ProcessID) {
+            if(!strcmp(entry.szExeFile, "sh.exe")) {
+              walk = FALSE;
+              break;
+            }
+            pid = entry.th32ParentProcessID;
+            break;
+          }
+        } while (Process32Next(snapshot, &entry));
+      }
+    }
+    CloseHandle(snapshot);
+  }
+
+  return (pid_t)pid;
+}
+#define getpid() getpid_msys()
+#endif
+
 int write_pidfile(const char *filename)
 {
   FILE *pidfile;