Programming with Rudiments using the unixsocketclient class

The unixsocketclient class provides methods for connecting to servers over unix sockets.

Here's the code for a client that can communicate with the unixsocketserver program. This client connects to a unix socket, sends a string to the server, reads what the server sends back and prints it out.

The socket filename, timeout, retry wait, and number of tries are all configurable.

#include <rudiments/unixsocketclient.h>
#include <rudiments/charstring.h>
#include <rudiments/stdio.h>

int main(int argc, const char **argv) {

	// create a client and connect to a unix socket
	unixsocketclient	client;
	client.setFileName("/tmp/testsocket");
	client.setTimeoutSeconds(5);
	client.setTimeoutMicroseconds(0);
	client.setRetryWait(1);
	client.setTries(3);

	if (client.connect()!=RESULT_SUCCESS) {
		stdoutput.write("failed to connect to /tmp/testsocket\n");
		return 1;
	}
	stdoutput.write("connected to /tmp/testsocket\n");


	// send a message to the server
	const char	*message="hello from the unix client";
	client.write(message,charstring::getLength(message));
	stdoutput.write("sent message\n");


	// read the server's response
	char	buf[1024];
	ssize_t	bytesread=client.read(buf,sizeof(buf)-1);
	if (bytesread>0) {
		buf[bytesread]='\0';
		stdoutput.printf("received: %s\n",buf);
	}


	// close the connection
	client.close();
}

Unix sockets allow clients and servers on the same machine to communicate. See the inetsocketserver and inetsocketclient examples for clients and servers that can communcate across a network.

Copyright 2017 - David Muse - Contact