[PATCH v2 07/14] mingw: add kill emulation

[Erik Faye-Lund <kusmabite@googlemail.com>]

This is a quite limited kill-emulation; it can only handle
SIGTERM on positive pids. However, it's enough for git-daemon.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
---
 compat/mingw.c |   19 +++++++++++++++++++
 compat/mingw.h |    3 +++
 2 files changed, 22 insertions(+), 0 deletions(-)

diff --git a/compat/mingw.c b/compat/mingw.c
index ce4f829..89b9b89 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -829,6 +829,25 @@ void mingw_execvp(const char *cmd, char *const *argv)
 	free_path_split(path);
 }
 
+int mingw_kill(pid_t pid, int sig)
+{
+	if (pid > 0 && sig == SIGTERM) {
+		HANDLE h = OpenProcess(PROCESS_TERMINATE, FALSE, pid);
+
+		if (TerminateProcess(h, -1)) {
+			CloseHandle(h);
+			return 0;
+		}
+
+		CloseHandle(h);
+		errno = err_win_to_posix(GetLastError());
+		return -1;
+	}
+
+	errno = EINVAL;
+	return -1;
+}
+
 static char **copy_environ(void)
 {
 	char **env;
diff --git a/compat/mingw.h b/compat/mingw.h
index ff4a76b..e72c2ee 100644
--- a/compat/mingw.h
+++ b/compat/mingw.h
@@ -176,6 +176,9 @@ static inline int waitpid(pid_t pid, int *status, unsigned options)
 	return -1;
 }
 
+#define kill mingw_kill
+int mingw_kill(pid_t pid, int sig);
+
 #ifndef NO_OPENSSL
 #include <openssl/ssl.h>
 static inline int mingw_SSL_set_fd(SSL *ssl, int fd)
-- 
1.6.6.211.g26720