1 files changed, 57 insertions, 0 deletions
diff --git a/abuse.c b/abuse.c
new file mode 100644
index 0000000..040fb5e
--- /dev/null
+++ b/abuse.c
@@ -0,0 +1,57 @@
+#include <stdio.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#define host "192.168.2.3"
+#define port 8888
+
+int f(struct in_addr *saddr, const char *data, const size_t data_len) {
+	int sockfd;
+	struct sockaddr_in addr;
+	sockfd = socket(AF_INET, SOCK_STREAM, 0);
+	if (sockfd < -1) {
+		perror("socket");
+		return 1;
+	}
+	memset(&addr, 0, sizeof(addr));
+	addr.sin_family = AF_INET;
+	addr.sin_port = htons(port);
+	addr.sin_addr = *saddr;
+	if (connect(sockfd, (struct sockaddr *)&addr, sizeof(addr))) {
+		perror("connect");
+		return 1;
+	}
+	write(sockfd, data, data_len);
+	close(sockfd);
+	return 0;
+}
+int main(int argc, char **argv) {
+	struct in_addr saddr;
+	const char *data = "GET / HTTP/1.0\r\n\r\n";
+	const size_t data_len = strlen(data);
+	if (argc != 2) {
+		fprintf(stderr, "Usage: %s count\n", *argv);
+		return 1;
+	}
+	if (!inet_aton(host, &saddr)) {
+		perror("inet_aton");
+		return 1;
+	}
+	int count = atoi(argv[1]);
+	const char dot = '.';
+	unsigned fails;
+	while (--count >= 0) {
+		if (!(count % 10)) {
+			write(STDOUT_FILENO, &dot, sizeof(dot));
+		}
+		if (f(&saddr, data, data_len)) {
+			if (++fails > 10) break;
+		} else
+			fails /= 2;
+	}
+	putchar('\n');
+	return 0;
+}