Fail to connect a uds client socket

Question

I'm new to unix domain sockets so i tried beej's code for client and server from: http://beej.us/guide/bgipc/html/multi/unixsock.html

The server "works" but the client gives me an error when calling "connect" function. I'm getting: "Invalid argument" error.

any advice?

score 0 · Answer 1 · answered Dec 29 '15 at 12:24

0

try memset when you create a client socket

struct sockaddr_un sin;
memset(&sin, 0, sizeof(sin));

answered Dec 29 '15 at 12:24

Dass

score 0 · Answer 2 · answered Jun 13 '18 at 21:04

I was actually having the same problem with that tutorial, the problem is in:

len = strlen(remote.sun_path) + sizeof(remote.sun_family);

That assignment is missing the null character at the end of sun_path, so you just have to add one to the expression on the right:

len = strlen(remote.sun_path) + sizeof(remote.sun_family) + 1;

In my case the call to connect succeeded with that change.

2 Answers2