Connect on mouse click

With this commit the client starts the connection to the server as soon
as the user clicks into the application window. Disconnect or reading /
writing to the stream is not implemented.

3 files changed, 26 insertions, 21 deletions

diff --git a/gui.c b/gui.c
index a7f0886..6d0d267 100644
--- a/gui.c
+++ b/gui.c
@@ -31,6 +31,7 @@ void gui_run(void) {
 	SDL_Renderer* renderer;
 	SDL_Texture* texture;
 	uint32_t* pixels;
+	int xmpp_fd = -1;
 
 	// init SDL2 and create window
 	SDL_Init(SDL_INIT_VIDEO);
@@ -62,7 +63,9 @@ void gui_run(void) {
 				quit = true;
 				break;
 			case SDL_MOUSEBUTTONDOWN:
-				xmpp_connect();
+				if (xmpp_fd == -1) {
+					xmpp_fd = xmpp_connect();
+				}
 				break;
 			}
 			SDL_RenderClear(renderer);
diff --git a/xmpp.c b/xmpp.c
index c574ba5..dcf19a5 100644
--- a/xmpp.c
+++ b/xmpp.c
@@ -135,11 +135,11 @@ int xmpp_start_stream(int sock_fd, char *jid, char *domainpart)
 }
 
 /*
- * Initialize the network connection to the XMPP server
+ * Initialize the network connection to the XMPP server and return socket fd
  *
  * TODO: Error handling is missing.
  */
-void xmpp_connect(void)
+int xmpp_connect(void)
 {
 	printf("net_init()\n");
 
@@ -155,36 +155,38 @@ void xmpp_connect(void)
 	int sock = socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
 	if (sock == -1) {
 		printf("Failed to get socket from OS!.");
-		return;
+		return sock;
 	} else {
 		printf("Got socket number %d from OS.\n", sock);
 	}
 
 	if (connect(sock, addr->ai_addr, addr->ai_addrlen) == -1) {
 		printf("Failed to connect!\n");
-		return;
+		return sock;
 	} else {
 		printf("Successfully connected.\n");
 	}
 
 	if (xmpp_start_stream(sock, jid, domain) == -1) {
 		printf("Failed to init stream!\n");
-		return;
+		return sock;
 	}
 	printf("Stream init sent.\n");
 
-	printf("This is the server response:\n");
-	char buf;
-	while(1) {
-		int retval = recv(sock, (void *)&buf, 1, 0);
-		if (retval == 0) {
-			printf("Connection closed!\n");
-			break;
-		} else if (retval == 1) {
-			write(1, (const void *)&buf, 1);
-		} else {
-			printf(strerror(errno));
-			printf("Unhandled recv() return value %d!\n", retval);
-		}
-	}
+	return sock;
+
+//	printf("This is the server response:\n");
+//	char buf;
+//	while(1) {
+//		int retval = recv(sock, (void *)&buf, 1, 0);
+//		if (retval == 0) {
+//			printf("Connection closed!\n");
+//			break;
+//		} else if (retval == 1) {
+//			write(1, (const void *)&buf, 1);
+//		} else {
+//			printf(strerror(errno));
+//			printf("Unhandled recv() return value %d!\n", retval);
+//		}
+//	}
 }
diff --git a/xmpp.h b/xmpp.h
index 9752e38..f6b9071 100644
--- a/xmpp.h
+++ b/xmpp.h
@@ -17,5 +17,5 @@
  */
 
 
-void xmpp_connect(void);
+int xmpp_connect(void);
 char *get_domainpart(char *jid);