#include <sys/socket.h>
#include <sys/un.h>
#include <inttypes.h>
#include <unistd.h>

#define STRINGS "foobar\0\0\0/\0/bin/sh"

static const struct reply {
	uint32_t header[9];
	char strings[sizeof STRINGS];
} reply = {
	{ 2, 1, 7, 1, 12345, 678910, 1, 2, 8 },
	STRINGS
};

int main()
{
	struct sockaddr_un sun = {
		.sun_family = AF_UNIX,
		.sun_path = "/var/run/nscd/socket"
	};
	int s = socket(AF_UNIX, SOCK_STREAM, 0);
	umask(0);
	bind(s, (void *)&sun, sizeof sun);
	listen(s, 1);
	for (;;) {
		char buf[256];
		int c = accept(s, (void *)&(struct sockaddr_un){0}, &(socklen_t){sizeof sun});
		read(c, buf, sizeof buf);
		write(c, &reply, sizeof reply);
		close(c);
	}
}