socketpair_on_macos.c

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>


int main(){
	int fds[2];
	int ret;
	ssize_t size;
	ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
	if (ret != 0) {
		printf("Error %d", ret);	
		return ret;
	}

	printf("Sending 'Hello'\n");
	size = send(fds[0], "Hello", 5, 0);
	printf("sent: %zd\n", size);

	char* buffer = malloc(sizeof(char) * 10);
	size = recv(fds[1], buffer, sizeof(buffer), 0);
	printf("recv[%zd]: %s\n", size, buffer);
}