int client(char* host_address, int host_port, FILE* fin, FILE* fout, int buf_size) { int ret = 0; int socket_c; ret = socktcp(&socket_c); if (ret < 0) { return -1; } printf("Connection to %s:%d\n", host_address, host_port); ret = sockconnect(socket_c, host_address, host_port); if (ret < 0) { printf("connect() failed !\n"); sockclose(socket_c); return -1; } printf("Connection successful !\n"); ret = sender(socket_c, fin, fout, buf_size); printf("Disconnecting...\n"); sockclose(socket_c); return ret; }
int tcpconnect( unsigned long iP, unsigned short port, unsigned short timeout ) { int socky; struct sockaddr_in address; struct sigaction sv; struct hostent *athost; char thathost[0x100]; char buffer[512]; int tries, length; socky = -1; tries = 0; sigemptyset(&sv.sa_mask); sv.sa_handler=brokenpipe; sigaction(SIGPIPE,&sv,NULL); /* if ((athost = gethostbyname (thathost)) == NULL) { return -1; }*/ fflush(stdout); if ((socky = sockconnect(timeout,iP,port)) == -1) { fprintf(stdout,"Connection refused.\n"); socky = -1; return socky; } if (socky == -1) printf("Connection refused.\n"); alarm( 0x0 ); return socky; }
int ntq_connect(ntq_server** pserver, char* server_address, int server_port) { int ret = 0; ntq_server* server = NULL; server = (ntq_server*)malloc(sizeof(ntq_server)); if (server == NULL) { fprintf(stderr, "ntq_connect() error not enough memory\n"); return -1; } server->server_address = server_address; server->server_port = server_port; ret = socktcp(&server->socket); if (ret != 0) { fprintf(stderr, "ntq_connect() error socket creation failed\n"); return -1; } ret = sockconnect(server->socket, server->server_address, server->server_port); if (ret != 0) { fprintf(stderr, "ntq_connect() error socket connect failed\n"); sockclose(server->socket); return -1; } *pserver = server; return 0; }
void sigalrm_handler() { printf("\n -- send() timeout\n"); close(sockfd); printf(" -- reconnecting to %s:%d ..\n", host, orig_port); if(sockconnect(host, orig_port) == -1) die("unable to connect, DoS successful?"); printf(" -- attacking!\n"); sockattack(); return; }
int main(int argc, char *argv[]) { char name[MAX_NAME], host[MAX_HOST_NAME], my_host[MAX_HOST_NAME], msgout[MAX_LINE], *server; int bytes; my_ppid = getppid(); server = argv[1]; pthread_mutex_init(&mutex, NULL); printf("\nTrying to connect to server %s at port %d...", server, PORT); sock = sockconnect(server, PORT); if (sock == -1) { printf("\nCouldn't connect to the server!"); exit(1); } /* set up clean up function */ signal(SIGINT, Clean_Up); /* send LOGIN */ gethostname(my_host,MAX_HOST_NAME); my_id = (int) (getpid()); sprintf(msgout,"LOGIN,%s,%s,%d;",getlogin(),my_host,my_id); pthread_mutex_lock(&mutex); bytes = send(sock, msgout, strlen(msgout)+1, 0); pthread_mutex_unlock(&mutex); if (bytes == -1) { printf("\nCouldn't send command!"); Clean_Up(); } else { printf("\nSent Login Info."); } pthread_create(&tid_send_hey, NULL, (void*) &Send_Hey, (void*) sock); pthread_create(&tid_get_hey, NULL, (void*) &Get_Hey, (void*) sock); while (1) { sleep (2); if (my_ppid != getppid()) Clean_Up(); } }
int main(int argc, char **argv) { int s, inlen, outlen, f; pd9p_session *session; uint32_t file; char buf[1024]; if(argc<6) { fputs("Usage: pd9p addr port cmd remote local\n", stderr); return 1; } if((s=sockconnect(argv[1], atoi(argv[2]))) == -1) { fputs("pd9p: error: sockconnect\n", stderr); } if((session=pd9p_connect(s)) == 0) { close(s); fputs("pd9p: error: pd9p_connec\n", stderr); return 1; } if(!strcmp(argv[3], "get")) { if((file=pd9p_open(session, argv[4], pd9p_rdonly)) == errfid) { fputs("pd9p: error: pd9p_open\n", stderr); return 1; } if((f=open(argv[4], O_WRONLY|O_CREAT, 0666)) == -1) { fputs("pd9p: error: open\n", stderr); return 1; } inlen=0; while((inlen=pd9p_read(session, file, buf+inlen, 1024)) > 0) { for(outlen=0; outlen<inlen;) outlen+=write(f, buf+outlen, inlen-outlen); } pd9p_close(session, file); close(f); } pd9p_closesession(session); close(s); return 0; }
int main(int argc,char **argv){ struct addrinfo *res; struct addrinfo *caddr; char hname[STRSIZE + 1]; char *ipv; int ai_family; char *host; char *port; in_port_t uport; int rc; int cs; int buffsize; int64_t data_size; if(argc<4){ usage(argv[0]); return 0; } host = argv[1]; port = argv[2]; ipv = argv[3]; uport = atoi(port); data_size = (int64_t)atoll(argv[4]); buffsize = atoi(argv[5]); ai_family = get_ai_family(ipv); rc = lookup(host,port,ai_family,&res); if(rc != 0) { fprintf(stderr,"Error getting addrinfo for %s:",host); fprintf(stderr,"%s\n",gai_strerror(rc)); exit(1); } cs = sockconnect(res,host,&uport,stdout); freeaddrinfo(res); swallow_client(cs,data_size,buffsize); close(cs); return 0; }