From 54125fb6438e492e2bc1cf4b1c49f4ac94138ed6 Mon Sep 17 00:00:00 2001
From: Runxi Yu <me@runxiyu.org>
Date: Mon, 17 Feb 2025 00:40:15 +0800
Subject: [PATCH] git_hooks{.go,_client}: Add stub for git hook clients

---
 git_hooks.go                        | 45 +++++++++++++++++++++++++++++++++++++++++++++
 git_hooks_client/.gitignore         |  1 +
 git_hooks_client/Makefile           |  1 +
 git_hooks_client/git_hooks_client.c | 43 +++++++++++++++++++++++++++++++++++++++++++

diff --git a/git_hooks.go b/git_hooks.go
new file mode 100644
index 0000000000000000000000000000000000000000..86300cb2e35754a540c794d8330a496222659a1b
--- /dev/null
+++ b/git_hooks.go
@@ -0,0 +1,45 @@
+package main
+
+import (
+	"errors"
+	"fmt"
+	"net"
+	"os"
+	"syscall"
+)
+
+var err_not_unixconn = errors.New("Not a unix connection")
+
+func hooks_handle_connection(conn net.Conn) (err error) {
+	defer conn.Close()
+
+	unix_conn, ok := conn.(*net.UnixConn)
+	if !ok {
+		return err_not_unixconn
+	}
+
+	fd, err := unix_conn.File()
+	if err != nil {
+		return err
+	}
+	defer fd.Close()
+
+	ucred, err := get_ucred(fd)
+	if err != nil {
+		return err
+	}
+
+	pid := ucred.Pid
+
+	_ = pid
+
+	return nil
+}
+
+func get_ucred(fd *os.File) (*syscall.Ucred, error) {
+	ucred, err := syscall.GetsockoptUcred(int(fd.Fd()), syscall.SOL_SOCKET, syscall.SO_PEERCRED)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get credentials: %v", err)
+	}
+	return ucred, nil
+}
diff --git a/git_hooks_client/.gitignore b/git_hooks_client/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..129c0b4e8c659fe8c91dc7863b6d9eec4688bbe6
--- /dev/null
+++ b/git_hooks_client/.gitignore
@@ -0,0 +1 @@
+/git_hooks_client
diff --git a/git_hooks_client/Makefile b/git_hooks_client/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..0dd283e80f87d1aa98bd8dd7c0646f52f2d8e028
--- /dev/null
+++ b/git_hooks_client/Makefile
@@ -0,0 +1 @@
+git_hooks_client:
diff --git a/git_hooks_client/git_hooks_client.c b/git_hooks_client/git_hooks_client.c
new file mode 100644
index 0000000000000000000000000000000000000000..b274e0340d5baaa01d70f093578a385ad374e22f
--- /dev/null
+++ b/git_hooks_client/git_hooks_client.c
@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <string.h>
+
+int main() {
+	int sock;
+	struct sockaddr_un addr;
+	const char *message = "hi";
+	const char *socket_path = getenv("LINDENII_FORGE_HOOKS_SOCKET_PATH");
+
+	if (socket_path == NULL) {
+		exit(EXIT_FAILURE);
+	}
+
+	sock = socket(AF_UNIX, SOCK_STREAM, 0);
+	if (sock == -1) {
+		perror("socket");
+		exit(EXIT_FAILURE);
+	}
+
+	memset(&addr, 0, sizeof(struct sockaddr_un));
+	addr.sun_family = AF_UNIX;
+	strncpy(addr.sun_path, socket_path, sizeof(addr.sun_path) - 1);
+
+	if (connect(sock, (struct sockaddr *)&addr, sizeof(struct sockaddr_un)) == -1) {
+		perror("connect");
+		close(sock);
+		exit(EXIT_FAILURE);
+	}
+
+	if (send(sock, message, strlen(message), 0) == -1) {
+		perror("send");
+		close(sock);
+		exit(EXIT_FAILURE);
+	}
+
+	close(sock);
+
+	return 0;
+}

-- 
2.48.1