由于要在linux下面用到类似lcx的程序,百度找到了几份源代码,但是在BT5
R3里面编译都错误,就仔细看了看,改了下,主要修改的地方有2个,第一个是void closeallfd()改成了void
closeallfd(int);另一个地方是accept函数的第三个参数加上了强制类型转换(socklen_t *),修改后代码如下:
- /* Socket data transport tool
- * by bkbll(bkbll@cnhonker.net)
- * [bkbll@mobile socket]$ uname -a
- * Linux mobile 2.4.18-14 #1 Wed Sep 4 13:35:50 EDT 2002 i686 i686 i386 GNU/Linux
- * [bkbll@mobile socket]$ gcc -o trtool trtool.c
- * [bkbll@mobile socket]$ ./trtool
- * Socket data transport tool
- * by bkbll(bkbll@cnhonker.net)
- * Usage:./trtool -m method [-h1 host1] -p1 port1 [-h2 host2] -p2 port2 [-v] [-log filename]
- * -v: version
- * -h1: host1
- * -h2: host2
- * -p1: port1
- * -p2: port2
- * -log: log the data
- * -m: the action method for this tool
- * 1: listen on PORT1 and connect to HOST2:PORT2
- * 2: listen on PORT1 and PORT2
- * 3: connect to HOST1:PORT1 and HOST2:PORT2
- */
- #include <sys/time.h>
- #include <signal.h>
- #include <stdlib.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <string.h>
- #include <netinet/in.h>
- #include <arpa/inet.h>
- #include <unistd.h>
- #include <stdio.h>
- #include <errno.h>
- #include <netdb.h>
- #define VERSION "2.2"
- #define TIMEOUT 300
- #define max(a,b) (a)>(b)?(a):(b)
- #define MAXSIZE 10240
- #define HOSTLEN 40
- #define CONNECT_NUMBER 5
- /* define function here */
- void usage(char *s);
- void transdata(int fd1,int fd2);
- void closeallfd(int);
- void makelog(char *buffer,int length);
- int testifisvalue(char *str);
- int bind2conn(int port1,char *host,int port2);
- int bind2bind(int port1,int port2);
- int conn2conn(char *host1,int port1,char *host2,int port2);
- int create_socket();
- int create_serv(int sockfd,int port);
- int client_connect(int sockfd,char* server,int port);
- /* define GLOBAL varible here */
- extern int errno;
- FILE *fp;
- main(int argc,char **argv)
- {
- char **p;
- char host1[HOSTLEN],host2[HOSTLEN];
- int port1=0,port2=0,method=0;
- int length;
- char *logfile=NULL;
- p=argv;
- memset(host1,0,HOSTLEN);
- memset(host2,0,HOSTLEN);
- while(*p)
- {
- if(strcmp(*p,"-v")==0)
- {
- printf("Socket data transport tool.\r\nVersion:%s\r\n",VERSION);
- p++;
- continue;
- }
- if(strcmp(*p,"-h1")==0)
- {
- if(testifisvalue(*(p+1))==1)
- {
- length=(strlen(*(p+1))>HOSTLEN-1)?HOSTLEN-1:strlen(*(p+1));
- strncpy(host1,*(++p),length);
- }
- p++;
- continue;
- }
- if(strcmp(*p,"-h2")==0)
- {
- if(testifisvalue(*(p+1))==1)
- {
- length=(strlen(*(p+1))>HOSTLEN-1)?HOSTLEN-1:strlen(*(p+1));
- strncpy(host2,*(++p),length);
- }
- p++;
- continue;
- }
- if(strcmp(*p,"-p1")==0)
- {
- if(testifisvalue(*(p+1))==1)
- port1=atoi(*(++p));
- p++;
- continue;
- }
- if(strcmp(*p,"-p2")==0)
- {
- if(testifisvalue(*(p+1))==1)
- port2=atoi(*(++p));
- p++;
- continue;
- }
- if(strcmp(*p,"-m")==0)
- {
- if(testifisvalue(*(p+1))==1)
- method=atoi(*(++p));
- p++;
- continue;
- }
- if(strcmp(*p,"-log")==0)
- {
- if(testifisvalue(*(p+1))==1)
- logfile=*(++p);
- else
- {
- printf("[ERROR]:must supply logfile name\r\n");
- exit(0);
- }
- p++;
- continue;
- }
- p++;
- }
- signal(SIGCLD,SIG_IGN);
- signal(SIGINT,&closeallfd);
- if(logfile !=NULL)
- {
- fp=fopen(logfile,"a");
- if(fp == NULL )
- {
- perror("open logfile");
- exit(0);
- }
- }
- makelog("######################## start ################\r\n",49);
- switch(method)
- {
- case 0:
- usage(argv[0]);
- break;
- case 1:
- if((port1==0) || (port2==0))
- {
- printf("[ERROR]:must supply PORT1 and PORT2.\r\n");
- break;
- }
- if(strlen(host2)==0)
- {
- printf("[ERROR]:must supply HOST2.\r\n");
- break;
- }
- bind2conn(port1,host2,port2);
- break;
- case 2:
- if((port1==0) || (port2==0))
- {
- printf("[ERROR]:must supply PORT1 and PORT2.\r\n");
- break;
- }
- bind2bind(port1,port2);
- break;
- case 3:
- if((port1==0) || (port2==0))
- {
- printf("[ERROR]:must supply PORT1 and PORT2.\r\n");
- break;
- }
- if(strlen(host1)==0)
- {
- printf("[ERROR]:must supply HOST1.\r\n");
- break;
- }
- if(strlen(host2)==0)
- {
- printf("[ERROR]:must supply HOST2.\r\n");
- break;
- }
- conn2conn(host1,port1,host2,port2);
- break;
- default:
- usage(argv[0]);
- }
- closeallfd(0);
- }
- int testifisvalue(char *str)
- {
- if(str == NULL ) return(0);
- if(str[0]=='-') return(0);
- return(1);
- }
- void usage(char *s)
- {
- printf("Socket data transport tool\r\n");
- printf("by bkbll(bkbll@cnhonker.net)\r\n\r\n");
- printf("Usage:%s -m method [-h1 host1] -p1 port1 [-h2 host2] -p2 port2 [-v] [-log filename]\r\n",s);
- printf(" -v: version\r\n");
- printf(" -h1: host1\r\n");
- printf(" -h2: host2\r\n");
- printf(" -p1: port1\r\n");
- printf(" -p2: port2\r\n");
- printf(" -log: log the data\r\n");
- printf(" -m: the action method for this tool\r\n");
- printf(" 1: listen on PORT1 and connect to HOST2:PORT2\r\n");
- printf(" 2: listen on PORT1 and PORT2\r\n");
- printf(" 3: connect to HOST1:PORT1 and HOST2:PORT2\r\n");
- closeallfd(0);
- }
- int bind2conn(int port1,char *host,int port2)
- {
- int sockfd,sockfd1,sockfd2;
- struct sockaddr_in remote;
- int size;
- int pid;
- char buffer[1024];
- memset(buffer,0,1024);
- if((sockfd=create_socket())==0) exit(0);
- if(create_serv(sockfd,port1)==0)
- {
- close(sockfd1);
- exit(0);
- }
- size=sizeof(struct sockaddr);
- while(1)
- {
- printf("waiting for response.........\n");
- if((sockfd1=accept(sockfd,(struct sockaddr *)&remote,(socklen_t *)&size))<0)
- {
- perror("accept error\n");
- continue;
- }
- printf("accept a client from %s:%d\n",inet_ntoa(remote.sin_addr),ntohs(remote.sin_port));
- if((sockfd2=create_socket())==0)
- {
- close(sockfd1);
- continue;
- }
- printf("make a connection to %s:%d....",host,port2);
- fflush(stdout);
- if(client_connect(sockfd2,host,port2)==0)
- {
- close(sockfd2);
- sprintf(buffer,"[SERVER]connection to %s:%d error\r\n",host,port2);
- write(sockfd1,buffer,strlen(buffer));
- memset(buffer,0,1024);
- close(sockfd1);
- continue;
- }
- printf("ok\r\n");
- pid=fork();
- if(pid==0) transdata(sockfd1,sockfd2);
- // sleep(2);
- close(sockfd1);
- close(sockfd2);
- }
- }
- int bind2bind(int port1,int port2)
- {
- int fd1,fd2,sockfd1,sockfd2;
- struct sockaddr_in client1,client2;
- int size1,size2;
- int pid;
- if((fd1=create_socket())==0) exit(0);
- if((fd2=create_socket())==0) exit(0);
- printf("binding port %d......",port1);
- fflush(stdout);
- if(create_serv(fd1,port1)==0)
- {
- close(fd1);
- exit(0);
- }
- printf("ok\r\n");
- printf("binding port %d......",port2);
- fflush(stdout);
- if(create_serv(fd2,port2)==0)
- {
- close(fd2);
- exit(0);
- }
- printf("ok\r\n");
- size1=size2=sizeof(struct sockaddr);
- while(1)
- {
- printf("waiting for response on port %d.........\n",port1);
- if((sockfd1=accept(fd1,(struct sockaddr *)&client1,(socklen_t *)&size1))<0)
- {
- perror("accept1 error");
- continue;
- }
- printf("accept a client on port %d from %s,waiting another on port %d....\n",port1,inet_ntoa(client1.sin_addr),port2);
- if((sockfd2=accept(fd2,(struct sockaddr *)&client2,(socklen_t *)&size2))<0)
- {
- perror("accept2 error");
- close(sockfd1);
- continue;
- }
- printf("accept a client on port %d from %s\n",port2,inet_ntoa(client2.sin_addr));
- pid=fork();
- if(pid==0) transdata(sockfd1,sockfd2);
- //sleep(2);
- close(sockfd1);
- close(sockfd2);
- }
- }
- int conn2conn(char *host1,int port1,char *host2,int port2)
- {
- int sockfd1,sockfd2;
- int pid;
- while(1)
- {
- if((sockfd1=create_socket())==0) exit(0);
- if((sockfd2=create_socket())==0) exit(0);
- printf("make a connection to %s:%d....",host1,port1);
- fflush(stdout);
- if(client_connect(sockfd1,host1,port1)==0)
- {
- close(sockfd1);
- close(sockfd2);
- break;
- }
- printf("ok\r\n");
- printf("make a connection to %s:%d....",host2,port2);
- fflush(stdout);
- if(client_connect(sockfd2,host2,port2)==0)
- {
- close(sockfd1);
- close(sockfd2);
- break;
- }
- printf("ok\r\n");
- pid=fork();
- if(pid==0) transdata(sockfd1,sockfd2);
- //sleep(2);
- close(sockfd1);
- close(sockfd2);
- }
- }
- void transdata(int fd1,int fd2)
- {
- struct timeval timeset;
- fd_set readfd,writefd;
- int result,i=0;
- char read_in1[MAXSIZE],send_out1[MAXSIZE];
- char read_in2[MAXSIZE],send_out2[MAXSIZE];
- int read1=0,totalread1=0,send1=0;
- int read2=0,totalread2=0,send2=0;
- int sendcount1,sendcount2;
- int maxfd;
- struct sockaddr_in client1,client2;
- int structsize1,structsize2;
- char host1[20],host2[20];
- int port1=0,port2=0;
- char tmpbuf1[100],tmpbuf2[100];
- memset(host1,0,20);
- memset(host2,0,20);
- memset(tmpbuf1,0,100);
- memset(tmpbuf2,0,100);
- if(fp!=NULL)
- {
- structsize1=sizeof(struct sockaddr);
- structsize2=sizeof(struct sockaddr);
- if(getpeername(fd1,(struct sockaddr *)&client1,(socklen_t *)&structsize1)<0)
- {
- strcpy(host1,"fd1");
- }
- else
- {
- printf("got,ip:%s,port:%d\r\n",inet_ntoa(client1.sin_addr),ntohs(client1.sin_port));
- strcpy(host1,inet_ntoa(client1.sin_addr));
- port1=ntohs(client1.sin_port);
- }
- if(getpeername(fd2,(struct sockaddr *)&client2,(socklen_t *)&structsize2)<0)
- {
- strcpy(host2,"fd2");
- }
- else
- {
- printf("got,ip:%s,port:%d\r\n",inet_ntoa(client2.sin_addr),ntohs(client2.sin_port));
- strcpy(host2,inet_ntoa(client2.sin_addr));
- port2=ntohs(client2.sin_port);
- }
- sprintf(tmpbuf1,"\r\n########### read from %s:%d ####################\r\n",host1,port1);
- sprintf(tmpbuf2,"\r\n########### reply from %s:%d ####################\r\n",host2,port2);
- }
- maxfd=max(fd1,fd2)+1;
- memset(read_in1,0,MAXSIZE);
- memset(read_in2,0,MAXSIZE);
- memset(send_out1,0,MAXSIZE);
- memset(send_out2,0,MAXSIZE);
- timeset.tv_sec=TIMEOUT;
- timeset.tv_usec=0;
- while(1)
- {
- FD_ZERO(&readfd);
- FD_ZERO(&writefd);
- FD_SET(fd1,&readfd);
- FD_SET(fd1,&writefd);
- FD_SET(fd2,&writefd);
- FD_SET(fd2,&readfd);
- result=select(maxfd,&readfd,&writefd,NULL,×et);
- if((result<0) && (errno!=EINTR))
- {
- perror("select error");
- break;
- }
- else if(result==0)
- {
- printf("time out\n");
- break;
- }
- if(FD_ISSET(fd1,&readfd))
- {
- /* 不能超过MAXSIZE-totalread1,不然send_out1会溢出 */
- if(totalread1<MAXSIZE)
- {
- read1=read(fd1,read_in1,MAXSIZE-totalread1);
- if(read1==0) break;
- if((read1<0) && (errno!=EINTR))
- {
- perror("read data error");
- break;
- }
- memcpy(send_out1+totalread1,read_in1,read1);
- makelog(tmpbuf1,strlen(tmpbuf1));
- makelog(read_in1,read1);
- totalread1+=read1;
- memset(read_in1,0,MAXSIZE);
- }
- }
- if(FD_ISSET(fd2,&writefd))
- {
- int err=0;
- sendcount1=0;
- while(totalread1>0)
- {
- send1=write(fd2,send_out1+sendcount1,totalread1);
- if(send1==0)break;
- if((send1<0) && (errno!=EINTR))
- {
- perror("unknow error");
- err=1;
- break;
- }
- if((send1<0) && (errno==ENOSPC)) break;
- sendcount1+=send1;
- totalread1-=send1;
- }
- if(err==1) break;
- if((totalread1>0) && (sendcount1>0))
- {
- /* 移动未发送完的数据到开始 */
- memcpy(send_out1,send_out1+sendcount1,totalread1);
- memset(send_out1+totalread1,0,MAXSIZE-totalread1);
- }
- else
- memset(send_out1,0,MAXSIZE);
- }
- if(FD_ISSET(fd2,&readfd))
- {
- if(totalread2<MAXSIZE)
- {
- read2=read(fd2,read_in2,MAXSIZE-totalread2);
- if(read2==0)break;
- if((read2<0) && (errno!=EINTR))
- {
- perror("read data error");
- break;
- }
- memcpy(send_out2+totalread2,read_in2,read2);
- makelog(tmpbuf2,strlen(tmpbuf2));
- makelog(read_in2,read2);
- totalread2+=read2;
- memset(read_in2,0,MAXSIZE);
- }
- }
- if(FD_ISSET(fd1,&writefd))
- {
- int err2=0;
- sendcount2=0;
- while(totalread2>0)
- {
- send2=write(fd1,send_out2+sendcount2,totalread2);
- if(send2==0)break;
- if((send2<0) && (errno!=EINTR))
- {
- perror("unknow error");
- err2=1;
- break;
- }
- if((send2<0) && (errno==ENOSPC)) break;
- sendcount2+=send2;
- totalread2-=send2;
- }
- if(err2==1) break;
- if((totalread2>0) && (sendcount2 > 0))
- {
- /* 移动未发送完的数据到开始 */
- memcpy(send_out2,send_out2+sendcount2,totalread2);
- memset(send_out2+totalread2,0,MAXSIZE-totalread2);
- }
- else
- memset(send_out2,0,MAXSIZE);
- }
- }
- close(fd1);
- close(fd2);
- printf("ok,I closed the two fd\r\n");
- exit(0);
- }
- void closeallfd(int n)
- {
- int i;
- printf("Let me exit...");
- fflush(stdout);
- for(i=3;i<256;i++)
- {
- close(i);
- }
- if(fp != NULL)
- {
- fprintf(fp,"exited\r\n");
- fclose(fp);
- }
- printf("all overd\r\n");
- exit(0);
- }
- void makelog(char *buffer,int length)
- {
- if(fp !=NULL)
- {
- //fprintf(fp,"%s",buffer);
- write(fileno(fp),buffer,length);
- fflush(fp);
- }
- }
- int create_socket()
- {
- int sockfd;
- sockfd=socket(AF_INET,SOCK_STREAM,0);
- if(sockfd<0)
- {
- perror("create socket error");
- return(0);
- }
- return(sockfd);
- }
- int create_serv(int sockfd,int port)
- {
- struct sockaddr_in srvaddr;
- int on=1;
- bzero(&srvaddr,sizeof(struct sockaddr));
- srvaddr.sin_port=htons(port);
- srvaddr.sin_family=AF_INET;
- srvaddr.sin_addr.s_addr=htonl(INADDR_ANY);
- setsockopt(sockfd,SOL_SOCKET,SO_REUSEADDR,&on,sizeof(on)); //so I can rebind the port
- if(bind(sockfd,(struct sockaddr *)&srvaddr,sizeof(struct sockaddr))<0)
- {
- perror("error");
- return(0);
- }
- if(listen(sockfd,CONNECT_NUMBER)<0)
- {
- perror("listen error\n");
- return(0);
- }
- return(1);
- }
- int client_connect(int sockfd,char* server,int port)
- {
- struct sockaddr_in cliaddr;
- struct hostent *host;
- if(!(host=gethostbyname(server)))
- {
- printf("gethostbyname(%s) error:%s\n",server,strerror(errno));
- return(0);
- }
- bzero(&cliaddr,sizeof(struct sockaddr));
- cliaddr.sin_family=AF_INET;
- cliaddr.sin_port=htons(port);
- cliaddr.sin_addr=*((struct in_addr *)host->h_addr);
- if(connect(sockfd,(struct sockaddr *)&cliaddr,sizeof(struct sockaddr))<0)
- {
- perror("error");
- return(0);
- }
- return(1);
- }
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