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| 1 | +#include <stdio.h> |
| 2 | +#include <stdlib.h> |
| 3 | +#include <winsock2.h> |
| 4 | +//#include <sys/types.h> |
| 5 | +//#include <sys/socket.h> |
| 6 | +#include <string.h> |
| 7 | +//#include <arpa/inet.h> |
| 8 | +//#include <unistd.h> |
| 9 | +#include <iostream> |
| 10 | +#include <pthread.h> |
| 11 | +#include "crc.h" |
| 12 | +#include <windows.h> |
| 13 | +#include <ws2tcpip.h> |
| 14 | +#include<iostream> |
| 15 | +#include<cstring> |
| 16 | + |
| 17 | +#pragma comment(lib,"ws2_32.lib") |
| 18 | +using namespace std; |
| 19 | + |
| 20 | +int socket_cmd_fd; |
| 21 | +int socket_data_fd; |
| 22 | +static char m_send_buffer[1024]; |
| 23 | +static char m_recv_buffer[1024]; |
| 24 | + |
| 25 | +int socket_create() //创建socket |
| 26 | +{ |
| 27 | + WORD socketVersion = MAKEWORD(2,2); |
| 28 | + WSADATA wsaData; |
| 29 | + if(WSAStartup(socketVersion, &wsaData) != 0) |
| 30 | + { |
| 31 | + return 0; |
| 32 | + } |
| 33 | + |
| 34 | + SOCKET sclient = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); |
| 35 | + if(sclient == INVALID_SOCKET) |
| 36 | + { |
| 37 | + printf("invalid socket!"); |
| 38 | + return 0; |
| 39 | + } |
| 40 | + |
| 41 | + return sclient; |
| 42 | +} |
| 43 | +void socket_close(int fd) //关闭socket |
| 44 | +{ |
| 45 | + closesocket(fd); |
| 46 | + |
| 47 | +} |
| 48 | + |
| 49 | +int socket_connect(SOCKET sclient, const char *ip,int port) //连接 |
| 50 | +{ |
| 51 | + |
| 52 | + sockaddr_in serAddr; |
| 53 | + serAddr.sin_family = AF_INET; |
| 54 | + serAddr.sin_port = htons(port); |
| 55 | + inet_pton(AF_INET, ip, &serAddr.sin_addr); |
| 56 | + |
| 57 | + // serAddr.sin_addr.s_addr=inet_addr(ip); |
| 58 | + |
| 59 | + |
| 60 | + if (connect(sclient, (sockaddr *)&serAddr, sizeof(serAddr)) == SOCKET_ERROR) |
| 61 | + { //连接失败 |
| 62 | + printf("connect error !\n"); |
| 63 | + closesocket(sclient); |
| 64 | + return -1; |
| 65 | + } |
| 66 | + //cout<<"data connect 0k"<<endl; |
| 67 | + return 0; |
| 68 | +} |
| 69 | +static int ftp_send_command(const CHAR *cmd)//发送命令 |
| 70 | +{ |
| 71 | + int ret; |
| 72 | + //printf("send command: %s\r\n", cmd); |
| 73 | + ret = send(socket_cmd_fd, cmd, (int)strlen(cmd),0); |
| 74 | + if(ret < 0) |
| 75 | + { |
| 76 | + printf("failed to send command: %s",cmd); |
| 77 | + return -1; |
| 78 | + } |
| 79 | + return 0; |
| 80 | +} |
| 81 | + |
| 82 | +static int ftp_recv_respond(char *resp, int len)//接收响应 |
| 83 | +{ |
| 84 | + int ret; |
| 85 | + int off; |
| 86 | + len -= 1; |
| 87 | + for(off=0; off<len; off+=ret) |
| 88 | + { |
| 89 | + ret = recv(socket_cmd_fd, &resp[off], 1,0); |
| 90 | + if(ret < 0) |
| 91 | + { |
| 92 | + printf("recv respond error(ret=%d)!\r\n", ret); |
| 93 | + return 0; |
| 94 | + } |
| 95 | + if(resp[off] == '\n') |
| 96 | + { |
| 97 | + break; |
| 98 | + } |
| 99 | + } |
| 100 | + resp[off+1] = 0; |
| 101 | + //printf("respond:%s", resp); |
| 102 | + return atoi(resp); |
| 103 | +} |
| 104 | +static int ftp_enter_pasv( char *ipaddr, int *port)//进入被动模式,解析数据地址 |
| 105 | +{ |
| 106 | + int ret; |
| 107 | + char *find; |
| 108 | + int a,b,c,d; |
| 109 | + int pa,pb; |
| 110 | + ret = ftp_send_command("PASV\r\n"); |
| 111 | + if(ret != 0) |
| 112 | + { |
| 113 | + return -1; |
| 114 | + } |
| 115 | + ret = ftp_recv_respond(m_recv_buffer, 1024); |
| 116 | + if(ret != 227) |
| 117 | + { |
| 118 | + return -1; |
| 119 | + } |
| 120 | + find = strrchr(m_recv_buffer, '('); |
| 121 | + sscanf_s(find, "(%d,%d,%d,%d,%d,%d)", &a, &b, &c, &d, &pa, &pb); |
| 122 | + sprintf(ipaddr, "%d.%d.%d.%d", a, b, c, d); |
| 123 | + *port = pa * 256 + pb; |
| 124 | + return 0; |
| 125 | +} |
| 126 | + |
| 127 | +int ftp_filesize(const char *name)//获取文件大小 |
| 128 | +{ |
| 129 | + int ret; |
| 130 | + int size; |
| 131 | + sprintf_s(m_send_buffer,"SIZE %s\r\n",name); |
| 132 | + ret = ftp_send_command(m_send_buffer); |
| 133 | + if(ret != 0) |
| 134 | + { |
| 135 | + return -1; |
| 136 | + } |
| 137 | + ret = ftp_recv_respond(m_recv_buffer, 1024); |
| 138 | + if(ret != 213) |
| 139 | + { |
| 140 | + return -1; |
| 141 | + } |
| 142 | + size = atoi(m_recv_buffer + 4); |
| 143 | + return size; |
| 144 | +} |
| 145 | + |
| 146 | + |
| 147 | +int ftp_upload(const char *name, void *buf, int len)//上传文件 |
| 148 | +{ |
| 149 | + int ret; |
| 150 | + char ipaddr[32]; |
| 151 | + int port; |
| 152 | + |
| 153 | + //查询数据地址 |
| 154 | + ret=ftp_enter_pasv(ipaddr, &port); |
| 155 | + if(ret != 0) |
| 156 | + { |
| 157 | + return -1; |
| 158 | + } |
| 159 | + ret=socket_connect(socket_data_fd, ipaddr, port); |
| 160 | + if(ret != 0) |
| 161 | + { |
| 162 | + return -1; |
| 163 | + } |
| 164 | + //准备上传 |
| 165 | + sprintf_s(m_send_buffer, "STOR %s\r\n", name); |
| 166 | + ret = ftp_send_command(m_send_buffer); |
| 167 | + if(ret != 0) |
| 168 | + { |
| 169 | + return -1; |
| 170 | + } |
| 171 | + ret = ftp_recv_respond(m_recv_buffer, 1024); |
| 172 | + if(ret != 150) |
| 173 | + { |
| 174 | + socket_close(socket_data_fd); |
| 175 | + return -1; |
| 176 | + } |
| 177 | + |
| 178 | + //开始上传 |
| 179 | + ret = send(socket_data_fd, (char *)buf, len,0); |
| 180 | + if(ret != len) |
| 181 | + { |
| 182 | + printf("send data error!\r\n"); |
| 183 | + socket_close(socket_data_fd); |
| 184 | + return -1; |
| 185 | + } |
| 186 | + socket_close(socket_data_fd); |
| 187 | + |
| 188 | + //上传完成,等待回应 |
| 189 | + ret = ftp_recv_respond(m_recv_buffer, 1024); |
| 190 | + return (ret==226); |
| 191 | +} |
| 192 | + |
| 193 | +//下载文件 |
| 194 | +int ftp_download(const char *name, void *buf, int len)//下载文件 |
| 195 | +{ |
| 196 | + int i; |
| 197 | + int ret; |
| 198 | + char ipaddr[32]; |
| 199 | + int port; |
| 200 | + |
| 201 | + //查询数据地址 |
| 202 | + ret = ftp_enter_pasv(ipaddr, &port); |
| 203 | + if(ret != 0) |
| 204 | + { |
| 205 | + return -1; |
| 206 | + } |
| 207 | + //连接数据端口 |
| 208 | + ret = socket_connect(socket_data_fd, ipaddr, port); |
| 209 | + if(ret != 0) |
| 210 | + { |
| 211 | + printf("failed to connect data port\r\n"); |
| 212 | + return -1; |
| 213 | + } |
| 214 | + |
| 215 | + //准备下载 |
| 216 | + sprintf_s(m_send_buffer, "RETR %s\r\n", name); |
| 217 | + ret = ftp_send_command(m_send_buffer); |
| 218 | + if(ret != 0) |
| 219 | + { |
| 220 | + return -1; |
| 221 | + } |
| 222 | + ret = ftp_recv_respond(m_recv_buffer, 1024); |
| 223 | + if(ret != 150) |
| 224 | + { |
| 225 | + socket_close(socket_data_fd); |
| 226 | + return -1; |
| 227 | + } |
| 228 | + |
| 229 | + //开始下载,读取完数据后,服务器会自动关闭连接 |
| 230 | + for(i=0; i<len; i+=ret) |
| 231 | + { |
| 232 | + ret = recv(socket_data_fd, ((char *)buf) + i, len,0); |
| 233 | + //printf("download %d/%d.\r\n", i + ret, len); |
| 234 | + if(ret < 0) |
| 235 | + { |
| 236 | + printf("download was interrupted.\r\n"); |
| 237 | + break; |
| 238 | + } |
| 239 | + } |
| 240 | + //下载完成 |
| 241 | + //printf("download %d/%d bytes complete.\r\n", i, len); |
| 242 | + socket_close(socket_data_fd); |
| 243 | + ret = ftp_recv_respond(m_recv_buffer, 1024); |
| 244 | + return (ret==226); |
| 245 | +} |
| 246 | + |
| 247 | +int login_ftp( const char *ip,int port,const char * username,const char * password)//登录服务器 |
| 248 | +{ |
| 249 | + int ret; |
| 250 | + ret=socket_connect(socket_cmd_fd,ip,21); |
| 251 | + if(ret < 0){ |
| 252 | + cout<<"ftp服务连接失败"<<endl; |
| 253 | + return -1; |
| 254 | + } |
| 255 | + //cout<<"ftp服务连接成功"<<endl; |
| 256 | + |
| 257 | + ret=ftp_recv_respond(m_recv_buffer,1024); |
| 258 | + if(ret != 220){ |
| 259 | + cout<<"错误的服务器,不欢迎"<<endl; |
| 260 | + return -1; |
| 261 | + } |
| 262 | + |
| 263 | + sprintf_s(m_send_buffer, "USER %s\r\n", username); |
| 264 | + ret = ftp_send_command(m_send_buffer); |
| 265 | + if(ret != 0) |
| 266 | + { |
| 267 | + socket_close(socket_cmd_fd); |
| 268 | + return -1; |
| 269 | + } |
| 270 | + ret = ftp_recv_respond(m_recv_buffer, 1024); |
| 271 | + if(ret != 331) |
| 272 | + { |
| 273 | + cout<<ret<<endl; |
| 274 | + socket_close(socket_cmd_fd); |
| 275 | + return -1; |
| 276 | + } |
| 277 | + //cout<<"pass"<<endl; |
| 278 | + //发送PASS |
| 279 | + sprintf_s(m_send_buffer, "PASS %s\r\n", password); |
| 280 | + ret = ftp_send_command(m_send_buffer); |
| 281 | + if(ret != 0) |
| 282 | + { |
| 283 | + socket_close(socket_cmd_fd); |
| 284 | + return -1; |
| 285 | + } |
| 286 | + ret = ftp_recv_respond(m_recv_buffer, 1024); |
| 287 | + if(ret != 230) |
| 288 | + { |
| 289 | + socket_close(socket_cmd_fd); |
| 290 | + return -1; |
| 291 | + } |
| 292 | + //printf("login success.\r\n"); |
| 293 | + |
| 294 | + //设置为二进制模式 |
| 295 | + ret = ftp_send_command("TYPE I\r\n"); |
| 296 | + if(ret != 0) |
| 297 | + { |
| 298 | + socket_close(socket_cmd_fd); |
| 299 | + return -1; |
| 300 | + } |
| 301 | + ret = ftp_recv_respond(m_recv_buffer, 1024); |
| 302 | + if(ret != 200) |
| 303 | + { |
| 304 | + socket_close(socket_cmd_fd); |
| 305 | + return -1; |
| 306 | + } |
| 307 | + return 0; |
| 308 | +} |
| 309 | + |
| 310 | +int ftp_write(const char *buf,int len,const char *filename)//存取到本地 |
| 311 | +{ |
| 312 | + int ret; |
| 313 | + const char *find; |
| 314 | + find=strrchr(filename, '/'); //解析图片名称(不能带路径) |
| 315 | +// printf("w_f=%s\n",find); |
| 316 | + FILE *fp = NULL; |
| 317 | + ret=fopen_s(&fp,find+1,"wb"); |
| 318 | + if(fp==NULL) |
| 319 | + cout<<"打开文件失败"<<endl; |
| 320 | + ret=fwrite(buf,1,len,fp); |
| 321 | + cout<<"拍照成功"<<endl; |
| 322 | + |
| 323 | + return 0; |
| 324 | +} |
| 325 | + |
| 326 | +void ftp_quit(void) |
| 327 | +{ |
| 328 | + ftp_send_command("QUIT\r\n"); |
| 329 | + socket_close(socket_cmd_fd); |
| 330 | +} |
| 331 | + |
| 332 | +void ftp_init(void) |
| 333 | +{ |
| 334 | + socket_cmd_fd = socket_create(); |
| 335 | + socket_data_fd= socket_create(); |
| 336 | + login_ftp("192.168.100.1",21,"AW819","1663819"); |
| 337 | +} |
| 338 | +int ftp_main(char *filename) |
| 339 | +{ |
| 340 | + |
| 341 | + CHAR *buf=NULL; |
| 342 | + //printf("filename = %s\n",filename); |
| 343 | + int len=ftp_filesize(filename); |
| 344 | + if(len < 0){ |
| 345 | + cout<<"文件不存在"<<endl; |
| 346 | + goto loop; |
| 347 | + } |
| 348 | + buf=new CHAR[len*10]; |
| 349 | + ftp_download(filename,buf,len); |
| 350 | + ftp_write(buf,len,filename); |
| 351 | + delete []buf; |
| 352 | + |
| 353 | +loop: |
| 354 | + return 0; |
| 355 | +} |
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