请问在c下如何用socket编写ftp客户端？(页 1) - 编程开发 & Rational - LoveUnix 最强AIX小机技术论坛,UNIX,Linux,存储,数据库,中间件,开发,管理

2004-7-28 23:04 ppsscan1

<img src='style_emoticons/default/haha.gif' border='0' style='vertical-align:middle' alt='haha.gif' /> 有例子程序吗？谢谢！

2004-7-28 23:34 carol

ft 我也要！！！！！！！！！！ windows 上 vb 用 winsock 开发的 telnet client 端和 ftp server 程序！！！！！谁有阿 <img src='style_emoticons/default/mad.gif' border='0' style='vertical-align:middle' alt='mad.gif' />

2004-7-29 11:26 99大话王

了解FTP协议 socket连接connect到服务器(IP)端口(PORT) 发送send和接收recv数据并根据FTP协议解释

2004-7-29 12:02 无间道

我有C代码的，要不要?

2004-7-29 12:12 carol

<div class='quotetop'>QUOTE(无间道 @ 2004-07-29 12:02:05)</div><div class='quotemain'> 我有C代码的，要不要? </div> <img src='style_emoticons/default/blush.gif' border='0' style='vertical-align:middle' alt='blush.gif' /> 好呀~~~~ 发我邮箱吧~ puccacarol@hotmail.com

2004-7-29 13:04 wuhu

我也要，jiangming888@163.com

2004-7-29 15:04 ppsscan1

太感谢了!请发给我!ppsscan9@yahoo.com.cn

2004-7-29 17:20 omanx

俺也要一份，谢谢，congge8111@tom.com

2004-7-29 17:56 where

多谢好人，给我一份吧 yz_temp@tom.com

2004-7-30 08:43 无间道

我把它帖出来吧 #include <winsock.h> #include <stdlib.h> #include <string.h> #include <stdio.h> #include "wininet.h" #define MAX_ALLLEN 4096 int GetPort(char *buf,unsigned short&port); int FtpFile(char *url,long& count); int ChangeStr(char* buf) { int l = strlen(buf); l--; while(buf[l] == '\r' ||buf[l] == '\n' ) l--; buf[l+1] = 0; return 0; } /* 文件格式如： <a href='ftp://22.108.33.3/5.rm' target='_blank'>ftp://22.108.33.3/5.rm</a> <a href='ftp://22.108.33.3/6.rm' target='_blank'>ftp://22.108.33.3/6.rm</a> ... */ int main(int argc,char** argv) { FILE *fp; fp = fopen(argv[1],"r"); if(fp == 0) return -1; char buf[1024]; char url[1024]; long num=0,count=0; while(fgets(buf,1024,fp)) { ChangeStr(buf); if(strnicmp(buf,"ftp://",6) == 0) { strcpy(url,buf+2); FtpFile(url,count); num++; printf("num = %ld,count =%ld",num,count); } } fclose(fp); return 0; } int FtpFile(char *url,long &count) { WSADATA cWSAData; if(WSAStartup(MAKEWORD(2, 2), &cWSAData)) return -1; char szServer[256]; char szPath[256]; char szUser[256]; char szPwd[256]; URL_COMPONENTS urlcom; memset(&urlcom, 0, sizeof(URL_COMPONENTS)); urlcom.dwStructSize = sizeof(URL_COMPONENTS); urlcom.lpszHostName = szServer; urlcom.dwHostNameLength = 255; urlcom.lpszUrlPath = szPath; urlcom.dwUrlPathLength = 255; urlcom.lpszUserName = szUser; urlcom.dwUserNameLength = 255; urlcom.lpszPassword = szPwd; urlcom.dwPasswordLength = 255; int ret = InternetCrackUrl(url, strlen(url), 0, &urlcom); if(ret == FALSE) return 1; SOCKET comm_socket,data_socket; struct sockaddr_in comm_addr,data_addr; //将域名转换成IP; PHOSTENT hp; if ( !isdigit(szServer[0]) ) { hp = gethostbyname(szServer); if (hp == NULL ) return 1; memset(&comm_addr,0,sizeof(sockaddr_in)); memcpy(&comm_addr.sin_addr,hp->h_addr,hp->h_length); comm_addr.sin_family = hp->h_addrtype; comm_addr.sin_port = htons(urlcom.nPort); } else { memset(&comm_addr,0,sizeof(sockaddr_in)); comm_addr.sin_addr.s_addr=inet_addr(szServer); comm_addr.sin_family =AF_INET; comm_addr.sin_port = htons(urlcom.nPort); } comm_socket = socket(AF_INET,SOCK_STREAM,0); // setsockopt(comm_socket,SOL_SOCKET ,SO_RCVTIMEO,(char *)&nTimeOut,sizeof(nTimeOut)); // setsockopt(comm_socket,SOL_SOCKET ,SO_SNDTIMEO,(char *)&nTimeOut,sizeof(nTimeOut)); ret=connect(comm_socket,(struct sockaddr *)&comm_addr,sizeof(comm_addr)); if(ret == SOCKET_ERROR) { closesocket(comm_socket); return 1; } char buf[MAX_ALLLEN]; char username[300]; char password[300]; char command[300]; memset(buf,0,MAX_ALLLEN); memset(username,0,300); memset(password,0,300); memset(command,0,256); if(urlcom.lpszUserName[0] != 0) sprintf(username,"USER %s\r\n",urlcom.lpszUserName); else sprintf(username,"USER anonymous\r\n"); // if(urlcom.lpszPassword[0] != 0) sprintf(password,"PASS %s\r\n",urlcom.lpszPassword); // else // sprintf(password,"PASS my@company.com\r\n"); send(comm_socket,username,strlen(username),0); ret = recv(comm_socket,buf,100,0); Sleep(1000); if(!strstr(buf,"\r\n") || ret == 0) { closesocket(comm_socket); return 1; } memset(buf,0,100); send(comm_socket,password,strlen(password),0); ret = recv(comm_socket,buf,100,0); Sleep(1000); if(!strstr(buf,"\r\n") || ret == 0) { closesocket(comm_socket); return 1; } memset(buf,0,100); send(comm_socket,"TYPE I\r\n",8,0); ret = recv(comm_socket,buf,100,0); Sleep(1000); if(!strstr(buf,"\r\n") || ret == 0) { closesocket(comm_socket); return 1; } memset(buf,0,100); send(comm_socket,"PASV\r\n",6,0); ret = recv(comm_socket,buf,100,0); Sleep(1000); if(!strstr(buf,"\r\n") || ret == 0) { closesocket(comm_socket); return 1; } sprintf(command,"SIZE %s\r\n",szPath); send(comm_socket,command,sizeof(command),0); ret = recv(comm_socket,buf,100,0); if(!strstr(buf,"\r\n") || ret == 0) { closesocket(comm_socket); return 1; } count++; return 0; } int GetPort(char* buf,unsigned short &port) { if(buf == NULL) return -1; unsigned short port1 = 0,port2 = 0; char *p = NULL; p = strchr(buf,'('); if(p == NULL) return -1; int flag = 0; while(*p) { if(*p == ',') { flag++; if(flag == 4) port1 = atoi(p+1); else if(flag == 5) { port2 = atoi(p+1); break; } } p++; } if(*p && port1 && port2) { port = port1 << 8; port += port2; } return 0; }

2004-7-30 09:25 大漠孤星

<img src='style_emoticons/default/rose.gif' border='0' style='vertical-align:middle' alt='rose.gif' /> 无间道不错啊～～ 可惜是windows下的code.

2004-7-30 10:18 wuhu

修改修改，一定要修改成linux下的，

2004-7-30 12:28 无间道

<div class='quotetop'>QUOTE(大漠孤星 @ 2004-07-30 09:25:15)</div><div class='quotemain'> <img src='style_emoticons/default/rose.gif' border='0' style='vertical-align:middle' alt='rose.gif' /> 无间道不错啊～～ 可惜是windows下的code. </div> 别的地方都是标准C的,只有从URL里面取出PATH,USERNAME,PASSWORD,的方法用了win API

2004-7-30 18:39 无双

还是很有用的

2004-7-31 14:38 ppsscan1

请问如何上传下载文件?

2004-7-31 16:30 carol

<div class='quotetop'>QUOTE(ppsscan1 @ 2004-07-31 14:38:58)</div><div class='quotemain'> 请问如何上传下载文件? </div> 在发贴子的添加附件里上传阿 <img src='style_emoticons/default/wub.gif' border='0' style='vertical-align:middle' alt='wub.gif' />

2007-12-11 00:14 zmjone

Cpp1.obj : error LNK2001: unresolved external symbol __imp__InternetCrackUrlA@16
无间道大哥，我编译的时候有这个错误，该怎么解决呢