author | Markus Bröker<broeker.markus@googlemail.com> |
Fri, 20 Oct 2017 06:41:27 +0200 | |
changeset 168 | dfb60716880c |
parent 160 | 26414889dded |
permissions | -rw-r--r-- |
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/** |
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* ddos/client.c |
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* Copyright (C) 2008 Markus Broeker |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include <sys/socket.h> |
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#include <sys/types.h> |
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#include <netdb.h> |
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#include <netinet/in.h> |
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#define MAXLEN 80 |
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int client_write (int client_socket, char *s) |
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{ |
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return write (client_socket, s, strlen (s)); |
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} |
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int main (int argc, char **argv) |
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{ |
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char message[MAXLEN + 1]; |
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int client_socket; |
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int status; |
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struct addrinfo hints, *result, *rp; |
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memset (&hints, 0, sizeof (struct addrinfo)); |
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hints.ai_family = AF_UNSPEC; |
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hints.ai_socktype = SOCK_STREAM; |
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hints.ai_flags = 0; |
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hints.ai_protocol = IPPROTO_TCP; |
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if (getaddrinfo ("localhost", "4000", &hints, &result) != 0) { |
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perror ("getaddrinfo"); |
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return -1; |
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} |
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client_socket = -1; |
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for (rp = result; rp != NULL; rp = rp->ai_next) { |
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if ((client_socket = socket (rp->ai_family, rp->ai_socktype, rp->ai_protocol)) == -1) |
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continue; |
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if (connect (client_socket, rp->ai_addr, rp->ai_addrlen) != -1) { |
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break; |
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} |
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close (client_socket); |
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client_socket = -1; |
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} |
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if (result != NULL) |
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freeaddrinfo (result); |
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status = client_write (client_socket, "Hello\r\n"); |
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while (client_socket > 0) { |
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status = read (client_socket, message, MAXLEN); |
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if (status > 0) { |
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message[status] = '\0'; |
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printf ("SERVER RESPONS: %s", message); |
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} else { |
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perror ("READ"); |
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close (client_socket); |
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return 1; |
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} |
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} |
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return close (client_socket); |
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} |