From 8790d9b76e103af734496fb85911daff9330cfa1 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 28 Aug 2002 08:56:25 +0000
Subject: * win32/win32.c (kill): negate pid under Win9x.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2755 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 win32/win32.c | 27 ++++++++++++++++++---------
 1 file changed, 18 insertions(+), 9 deletions(-)

(limited to 'win32')

diff --git a/win32/win32.c b/win32/win32.c
index e9edfdfc14..dec014c388 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -2337,23 +2337,30 @@ kill(int pid, int sig)
 {
     int ret = 0;
 
+    if (pid <= 0) {
+	errno = EINVAL;
+	return -1;
+    }
+
+    if (IsWin95()) pid = -pid;
     if ((unsigned int)pid == GetCurrentProcessId() && sig != SIGKILL)
 	return raise(sig);
 
-    if (sig == SIGINT && pid > 0) {
+    switch (sig) {
+      case SIGINT:
 	RUBY_CRITICAL({
 	    if (!GenerateConsoleCtrlEvent(CTRL_C_EVENT, (DWORD)pid)) {
-		errno = GetLastError();
+		if ((errno = GetLastError()) == 0) {
+		    errno = EPERM;
+		}
 		ret = -1;
 	    }
 	});
-    }
-    else if (sig == SIGKILL && pid > 0) {
-	HANDLE hProc;
+	break;
 
+      case SIGKILL:
 	RUBY_CRITICAL({
-	    hProc = OpenProcess(PROCESS_TERMINATE, FALSE,
-				IsWin95() ? -pid : pid);
+	    HANDLE hProc = OpenProcess(PROCESS_TERMINATE, FALSE, (DWORD)pid);
 	    if (hProc == NULL || hProc == INVALID_HANDLE_VALUE) {
 		if (GetLastError() == ERROR_INVALID_PARAMETER) {
 		    errno = ESRCH;
@@ -2369,10 +2376,12 @@ kill(int pid, int sig)
 	    }
 	    CloseHandle(hProc);
 	});
-    }
-    else {
+	break;
+
+      define:
 	errno = EINVAL;
 	ret = -1;
+	break;
     }
 
     return ret;
-- 
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