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发信人: Calvin (灵飞), 信区: Linux 
标  题: [技术]FreeProxyScan For FreeBSD 
发信站: BBS 水木清华站 (Tue Jul  7 16:08:53 1998) 
 
标  题: [技术]FreeProxyScan For FreeBSD 
发信站: 华南网木棉站 (Thu Jul  2 11:17:35 1998), 转信 
 
/* free proxy搜索程序,for UNIX                          */ 
/* 用法: 程序名  起始IP地址  结束IP地址   日志文件      */ 
/* 本程序将把搜索结果存于日志文件中                     */ 
/*  Author: Happy(Netguy)                               */ 
/*                                                      */ 
/*  1998.07.02 calvin注:                                */ 
/*  原来版本在Solaris上,我将它改到FreeBSD上来. :)       */ 
/*                                                      */ 
 
#include <stdio.h> 
#include <netinet/in.h> 
#include <sys/types.h> 
#include <sys/socket.h> 
#include <sys/signal.h> 
#include <sys/time.h> 
#include <fcntl.h> 
#include <unistd.h> 
#include <sys/ioctl.h> 
 
#define N    11  
 
int              port[N]={ 
80,81,88,8083,8080,8001,8888,3128,3124,3000,1080}; /* 欲搜的端口号 */ 
int              status=-1; 
char             serverName[20]; 
u_char           p1,p2,p3,p4; 
int              sockfd=-1; 
struct timeval   timeout={2,0}; 
struct fd_set    mask; 
FILE             *f=NULL; 
int              err; 
int              errlen; 
u_long           startIP,endIP,k; 
 
void terminate(void)                    /* 异常中止处理子程序 */ 
{  
    p1=(u_char)( (k>>24) & 0xFF); 
    p2=(u_char)( (k>>16) & 0xFF); 
    p3=(u_char)( (k>>8 ) & 0xFF); 
    p4=(u_char)(  k      & 0xFF); 
    fprintf(f,"%d.%d.%d.%d killed.\n",p1,p2,p3,p4); 
    fclose(f); 
    if(sockfd>0) close(sockfd); 
    exit(0); 
} 
 
void findProxy(u_long addr) 
{ 
        int i; 
        struct sockaddr_in host; 
         
/*  若连上了主机,则看其所有有可能提供proxy服务的端口 */ 
 
        for(i=0;i<N;i++) 
      { 
        host.sin_family=AF_INET; 
        host.sin_addr.s_addr=htonl(addr); 
        host.sin_port=htons(port[i]); 
 
        if ( (sockfd=socket(AF_INET,SOCK_STREAM,0))<0 ) 
        { fprintf(f," Error open socket\n"); 
          exit(-1); 
        } 
 
     
        /* 试连一个可能提供proxy服务的一个端口  */ 
        /* O_NDELAY = FNDELAY = O_NONBLOCK */ 
 
        if(fcntl(sockfd,F_SETFL,O_NDELAY) < 0 )   /* 非阻塞式socket */ 
        { fprintf(f,"fcntl() error\n"); 
          exit(-1); 
        } 
        status=connect(sockfd,(struct sockaddr *)& host,sizeof(host)); 
        timeout.tv_sec=1; 
        timeout.tv_usec=0;                      /* 超时限制 */ 
        FD_ZERO( & mask); 
        FD_SET(sockfd,& mask); 
        status=select(sockfd+1,(struct fd_set *)0,& mask, (struct 
fd_set*)0,& timeout); 
        switch(status) 
        { case -1: 
                  fprintf(f,"select error\n"); 
                  fclose(f); 
                  close(sockfd); 
                  exit(-1); 
          case 0:                               /* 连接超时 */ 
                  close(sockfd); 
                  return; 
          default:                              /* 连上了 */ 
                  if(  FD_ISSET(sockfd,& mask) ) 
                  { err=1; 
                    errlen=1; 
                    
getsockopt(sockfd,SOL_SOCKET,SO_ERROR,(char*)&err,&errlen); 
                    if(err==0) 
                       fprintf(f,"%s\t%d\n",serverName,port[i]); 
                  } 
        } 
        close(sockfd); 
        fflush(f); 
      } 
} 
 
main(int argc,char *argv[]) 
{  
 
  int i; 
 
  if(argc!=4) 
  { printf("Usage: %s  startIP endIP logFile\n",argv[0]); 
    exit(-1); 
  } 
   
  startIP=ntohl(inet_addr(argv[1]));            /* 搜索的IP范围 */ 
  endIP=ntohl(inet_addr(argv[2])); 
  if(startIP>endIP) 
  { k=startIP; 
    startIP=endIP; 
    endIP=k; 
  } 
 
  f=fopen(argv[3],"a");                 /* 打开日志文件 */ 
  if(f==NULL) 
  { printf("error open log file: %s\n",argv[3]); 
    exit(-1); 
  } 
  fprintf(f,"%s--------->%s\n",argv[1],argv[2]); 
  fflush(f); 
 
  printf("Searching proxy...\n"); 
  printf("%s----------->%s\n",argv[1],argv[2]); 
  printf("\tport:\n"); 
  for( i=0;i<N;i++)  printf("\t%d\n",port[i]); 
 
  signal(SIGTERM,terminate);            /* 异常中止处理 */ 
  switch(fork()) 
  { case 0:                             /* 子进程继续 */ 
         break; 
    case -1:                            /* 出错       */ 
         printf("fork() error\n"); 
         exit(-1); 
    default:                            /* 父进程结束 */ 
         fclose(f); 
         exit(0); 
  } 
 
  setpgrp(0, getpgrp());  /* calvin修改 */ 
   
  i=open("/dev/tty",O_RDWR);            /* 切断与控制台的联系 */ 
  if(i>=0) 
  {  ioctl(i,TIOCNOTTY,0); 
     close(i); 
  } 
  else { fprintf(f,"TTY eacape error\n"); fflush(f); } 
 
  for(k=startIP;k<=endIP;k++) 
  { if( (k % 256)==0)  continue;       /* localhost */ 
    if( (k % 256)==255) continue;      /* broadcast */ 
    p1=(u_char)( (k>>24) & 0xFF); 
    p2=(u_char)( (k>>16) & 0xFF); 
    p3=(u_char)( (k>>8 ) & 0xFF); 
    p4=(u_char)(  k      & 0xFF); 
    sprintf(serverName,"%d.%d.%d.%d",p1,p2,p3,p4); 
    findProxy(k); 
  } 
  fprintf(f,"All done\n"); 
  fclose(f); 
} 
 
 
-- 
    Email: liweijian@yahoo.com 
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