#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

static char buffer[1024 * 1024];

int main(void)
{
	struct sockaddr_in sa;
	size_t count = 0;
	size_t size;
	int rv;
	int s;

	s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	if (s < 0)
		return 1;
	memset(&sa, 0, sizeof(sa));
	sa.sin_family = AF_INET;
	sa.sin_addr.s_addr = inet_addr("127.0.0.1");
	sa.sin_port = htons(8806);

	if (connect(s, (struct sockaddr *)&sa, sizeof(struct sockaddr)) != 0)
		return 1;

	printf("send (%d): type message and hit RETURN to send signal\n",
	       getpid());
	fgets(buffer, sizeof(buffer), stdin);

	/* set "sending" uprobe here */

	size = strlen(buffer);

	if (write(s, &size, sizeof(size)) != sizeof(size))
		return 1;

	while (count < size) {
		rv = write(s, buffer + count, size - count);
		if (rv <= 0)
			return 1;
		count += rv;
	}

	sleep(1);

	return 0;
}