From 14ba9ab89104319f56b94de68cb177f78f69a739 Mon Sep 17 00:00:00 2001
From: Johan Maasing <johan@zoom.nu>
Date: Thu, 28 Nov 2024 14:22:48 +0100
Subject: [PATCH] Java does not suppport DGRAM sockets
---
CUDSClient/main.c | 30 +++++++++++-------------------
1 file changed, 11 insertions(+), 19 deletions(-)
diff --git a/CUDSClient/main.c b/CUDSClient/main.c
index eefd90a..4028ded 100644
--- a/CUDSClient/main.c
+++ b/CUDSClient/main.c
@@ -11,29 +11,21 @@ int main(void) {
server_addr.sun_family = AF_UNIX;
strcpy(server_addr.sun_path, SERVER_SOCK_FILE); // XXX: should be limited to about 104 characters, system dependent
- struct sockaddr_un client_addr = {};
- client_addr.sun_family = AF_UNIX;
- strcpy(client_addr.sun_path, CLIENT_SOCK_FILE);
-
// get socket
- int sockfd = socket(AF_UNIX, SOCK_DGRAM, 0);
+ int sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
- // bind client to client_filename
- if (bind(sockfd, (struct sockaddr *) &client_addr, sizeof(client_addr)) > 0) {
- if (connect(sockfd, (struct sockaddr *) &server_addr, sizeof(server_addr)) > 0) {
- unsigned char* messageBuffer = malloc(500);
- memset(messageBuffer, 0, 500);
- const char* message = "Hello from C";
- size_t messageLengthInBytes = strlen(message);
- messageBuffer[0] = messageLengthInBytes;
- strcpy((char *)messageBuffer+1, message);
- send(sockfd, messageBuffer, messageLengthInBytes+1, 0);
- free(messageBuffer);
- }
+ if (connect(sockfd, (struct sockaddr *) &server_addr, sizeof(server_addr)) > -1) {
+ unsigned char messageBuffer[500] = {};
+ const char* message = "Hello from C";
+ size_t messageLengthInBytes = strlen(message);
+ messageBuffer[0] = messageLengthInBytes;
+ // Lucky for us the message just happens to be compatible with UTF-8 encoding
+ strcpy((char *)messageBuffer+1, message);
+ send(sockfd, messageBuffer, messageLengthInBytes+1, 0);
+ } else {
+ perror("Unable to connect") ;
}
- // connect client to server_filename
-
unlink (CLIENT_SOCK_FILE);
return 0;