mingw: tidy up implementation of kill(2)

1 files changed, 13 insertions, 9 deletions

diff --git a/win32/process.c b/win32/process.c
index e9db5311e..318515375 100644
--- a/win32/process.c
+++ b/win32/process.c
@@ -376,15 +376,19 @@ int kill(pid_t pid, int sig)
 {
         HANDLE h;
 
-        if (sig != SIGTERM) {
-                bb_error_msg("kill only supports SIGTERM");
-                errno = EINVAL;
+        if (pid > 0 && sig == SIGTERM) {
+                if ((h=OpenProcess(PROCESS_TERMINATE, FALSE, pid)) != NULL &&
+                                TerminateProcess(h, 0)) {
+                        CloseHandle(h);
+                        return 0;
+                }
+
+                errno = err_win_to_posix(GetLastError());
+                if (h != NULL)
+                        CloseHandle(h);
                 return -1;
         }
-        h = OpenProcess(PROCESS_TERMINATE, FALSE, pid);
-        if (h == NULL)
-                return -1;
-        if (TerminateProcess(h, 0) == 0)
-                return -1;
-        return 0;
+
+        errno = EINVAL;
+        return -1;
 }