add libi3/ipc_connect, use it in i3-config-wizard, i3-input, i3bar

i3-input/i3-input.h

@@ -16,7 +16,6 @@ extern xcb_window_t root;
 
 char *convert_ucs_to_utf8(char *input);
 char *convert_utf8_to_ucs2(char *input, int *real_strlen);
-int connect_ipc(char *socket_path);
 uint32_t get_colorpixel(xcb_connection_t *conn, char *hex);
 uint32_t get_mod_mask(xcb_connection_t *conn, uint32_t keycode);
 xcb_window_t open_input_window(xcb_connection_t *conn, uint32_t width, uint32_t height);

i3-input/ipc.c

@@ -1,37 +0,0 @@
-/*
- * vim:ts=8:expandtab
- *
- * i3 - an improved dynamic tiling window manager
- *
- * © 2009 Michael Stapelberg and contributors
- *
- * See file LICENSE for license information.
- *
- */
-#include <stdint.h>
-#include <string.h>
-#include <stdlib.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <unistd.h>
-#include <err.h>
-
-/*
- * Connects to the i3 IPC socket and returns the file descriptor for the
- * socket. die()s if anything goes wrong.
- *
- */
-int connect_ipc(char *socket_path) {
-	int sockfd = socket(AF_LOCAL, SOCK_STREAM, 0);
-        if (sockfd == -1)
-                err(EXIT_FAILURE, "Could not create socket");
-
-        struct sockaddr_un addr;
-        memset(&addr, 0, sizeof(struct sockaddr_un));
-        addr.sun_family = AF_LOCAL;
-        strncpy(addr.sun_path, socket_path, sizeof(addr.sun_path) - 1);
-        if (connect(sockfd, (const struct sockaddr*)&addr, sizeof(struct sockaddr_un)) < 0)
-                err(EXIT_FAILURE, "Could not connect to i3");
-
-	return sockfd;
-}

i3-input/main.c

@@ -341,7 +341,7 @@ int main(int argc, char *argv[]) {
     if (socket_path == NULL)
         socket_path = "/tmp/i3-ipc.sock";
 
-    sockfd = connect_ipc(socket_path);
+    sockfd = ipc_connect(socket_path);
 
     if (prompt != NULL)
         prompt = convert_utf8_to_ucs2(prompt, &prompt_len);