#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/errno.h>
#include <sys/stat.h>

int
main()
{
	
	const char file[] = "/tmp/.afunix";

	umask(0077);

	int status = unlink(file);
	if (status < 0 && errno != ENOENT)
	{
		printf("unlink() failed with %d\n", errno);
		return 1;
	}

	int fd = socket(AF_UNIX, SOCK_STREAM, 0);
	if (fd < 0)
	{
		printf("socket() failed with %d\n", errno);
		return 1;
	}

	struct sockaddr_un address;
	memset(&address, 0, sizeof(address));
	address.sun_family = AF_UNIX;
	strcpy(address.sun_path, file);
	int len = sizeof(address);
	status = bind(fd, (sockaddr*) &address, len);
	if (status < 0)
	{
		printf("bind() failed with %d\n", errno);
		return 1;
	}

	status = chmod(file, 0777);
	if (status < 0)
	{
		printf("chmod() failed with %d\n", errno);
		return 1;
	}

	return 0;
}