openwrt路由器之前文件传输

/******* 服务器程序 (server.c) ************/ // 收到的文件保存在当前目录 // /******* ************************* ************/ #include <stdlib.h> #include <stdio.h> #include <errno.h> #include <string.h> #include <unistd.h> #include <netdb.h> #include <sys/socket.h> #include <netinet/in.h> #include <sys/types.h> #include <arpa/inet.h> #include <sys/stat.h> #include <fcntl.h> // 定义包的大小为512KB #define PACK_SIZE 1024*512 // linux 下读取大于2GB文件时，需指定 #define _FILE_OFFSET_BITS 64 int main(int argc, char *argv[]) { // 设置输出缓冲 setvbuf(stdout, NULL, _IONBF, 0); fflush(stdout); int sockfd,new_fd; struct sockaddr_in server_addr; struct sockaddr_in client_addr; int sin_size,portnumber; char hello[]="Hello! Are You Fine?\n"; if((portnumber=atoi("9090"))<0) { fprintf(stderr,"Usage:%s portnumber\a\n",argv[0]); exit(1); } /* 服务器端开始建立socket描述符 */ if((sockfd=socket(AF_INET,SOCK_STREAM,0))==-1) { fprintf(stderr,"Socket error:%s\n\a",strerror(errno)); exit(1); } /* 服务器端填充 sockaddr结构 */ bzero(&server_addr,sizeof(struct sockaddr_in)); server_addr.sin_family=AF_INET; server_addr.sin_addr.s_addr=htonl(INADDR_ANY); server_addr.sin_port=htons(portnumber); /* 捆绑sockfd描述符 */ if(bind(sockfd,(struct sockaddr *)(&server_addr),sizeof(struct sockaddr))==-1) { fprintf(stderr,"Bind error:%s\n\a",strerror(errno)); exit(1); } /* 监听sockfd描述符 */ if(listen(sockfd,5)==-1) { fprintf(stderr,"Listen error:%s\n\a",strerror(errno)); exit(1); } while(1) { fprintf(stderr, "server is listening!\n"); /* 服务器阻塞,直到客户程序建立连接 */ sin_size=sizeof(struct sockaddr_in); if( ( new_fd = accept(sockfd,(struct sockaddr *)(&client_addr),(socklen_t*)&sin_size ) ) == -1) { fprintf(stderr,"Accept error:%s\n\a",strerror(errno)); exit(1); } fprintf(stderr,"Server get connection from %s\n", inet_ntoa(client_addr.sin_addr)); if(write(new_fd,hello,strlen(hello))==-1) { fprintf(stderr,"Write Error:%s\n",strerror(errno)); exit(1); } long int read_size = 0; unsigned long file_len = 0; int order_id = 0; char file_name[128] = {'\0'}; char file_info[1024] = {'\0'}; struct stat attr; int mode; // 读取指令 printf("\n\nWaiting for read file info!\n"); int nn = 0; if(nn = read(new_fd, file_info, 1024)) { // 指令ID int id_h = (int)file_info[0]<<8; order_id = id_h + (int)file_info[1]; // 文件长度 // 高16位 unsigned long len_hig_1 = 0; memcpy(&len_hig_1, &file_info[2], sizeof(file_info[2])); unsigned long len_hig_2 = 0; memcpy(&len_hig_2, &file_info[3], sizeof(file_info[3])); unsigned long len_hig = len_hig_1 * 256 + len_hig_2; // 低16位 unsigned long len_low_1 = 0; memcpy(&len_low_1, &file_info[4], sizeof(file_info[4])); unsigned long len_low_2 = 0; memcpy(&len_low_2, &file_info[5], sizeof(file_info[5])); int len_low = len_low_1 * 256 + len_low_2; file_len = len_hig * 256 * 256 + len_low; //获取文件权限 //attr.st_mode = (mode_t)(file_info[7]*256+file_info[6]); mode = (file_info[7]*256+file_info[6]); // 文件名称 strncpy(file_name, &file_info[8], strlen(&file_info[8])); printf("order = %d, %lu, %s\n", order_id, file_len, file_name); if((strlen(file_name) == 0) || (file_len == 0)) { printf("Read file info error!\nFile_name or file_len is zero!\n"); close(new_fd); continue; } } else { printf("Read file info error!\n"); close(new_fd); close(sockfd); exit(0); } // 写入文件 printf("\n\nWaiting for read file content!\n"); FILE* pf = fopen(file_name, "wb+"); if(pf == NULL) { printf("Open file error!\n"); close(new_fd); continue; } if(stat(file_name, &attr) < 0) { printf("Get file stat failed!\n"); } //修改文件属性 chmod(file_name,attr.st_mode | mode);//参数二：保留文件的权限信息，只改变操作权限 // char buff[PACK_SIZE] = {'\0'}; while(read_size <= file_len) { //bzero(buff, 1024); int rlen = read(new_fd, buff, PACK_SIZE); if(rlen) { //system("clear"); printf("\n\nRead package size = %d\n\n", rlen); int wn = fwrite(buff, sizeof(char), rlen, pf); read_size += rlen; printf("write file size = %d\n", wn); //printf("Read total size = %d\n", read_size); } else { printf("Read over!...\n"); break; } } // End While printf("File lenth is %ld >>>>> Already read size is %ld\n", file_len, read_size); /* 这个通讯已经结束 */ fclose(pf); close(new_fd); /* 循环下一个 */ } close(sockfd); exit(0); } /* object=server.o server.o: gcc -g -c server.c gcc -o server $(object) clean: rm server $(object) mtd0: 00020000 00010000 "u-boot" mtd1: 00115dc0 00010000 "kernel" mtd2: 00eba240 00010000 "rootfs" mtd3: 00cd0000 00010000 "rootfs_data" mtd4: 00010000 00010000 "art" mtd5: 00fd0000 00010000 "firmware" */ [ 0.720000] 0x000000000000-0x000000020000 : "u-boot" [ 0.730000] 0x000000020000-0x000000135dc0 : "kernel" [ 0.740000] 0x000000135dc0-0x000000ff0000 : "rootfs" [ 0.750000] 0x000000320000-0x000000ff0000 : "rootfs_data" [ 0.760000] 0x000000ff0000-0x000001000000 : "art" [ 0.770000] 0x000000020000-0x000000ff0000 : "firmware" ar9341> setenv serverip 192.168.1.100; setenv ipaddr 192.168.1.1 ar9341> tftp 0x80800000 openwrt-ar71xx-generic-tl-wr841n-v8-squashfs-factory.bin Trying eth0 eth0 link down FAIL Trying eth1 enet1 port2 up dup 1 speed 1000 Using eth1 device TFTP from server 192.168.1.100; our IP address is 192.168.1.1 Filename 'openwrt-ar71xx-generic-tl-wr841n-v8-squashfs-factory.bin'. Load address: 0x80800000 Loading: ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ###################################################### done Bytes transferred = 3932160 (3c0000 hex) ar9341> erase 0x9f020000 +0x3c0000 Erase Flash from 0x9f020000 to 0x9f3dffff in Bank # 1 First 0x2 last 0x3d sector size 0x10000 61 Erased 60 sectors ar9341> cp.b 0x80800000 0x9f020000 0x3c0000 Copy to Flash... write addr: 9f020000 done 注意:下面这个步骤,如果你是直接从原厂固件按附1换UBOOT过来的,就可以省略了.因为原厂的FLASH里,已经有了ART ar9341> tftp 0x80800000 ar9341_art.BIN Trying eth0 eth0 link down FAIL Trying eth1 Using eth1 device TFTP from server 192.168.1.100; our IP address is 192.168.1.1 Filename 'ar9341_art.BIN'. Load address: 0x80800000 Loading: ############# done Bytes transferred = 65536 (10000 hex) ar9341> erase 0x9f3f0000 +0x10000 Erase Flash from 0x9f3f0000 to 0xffffffff in Bank # 1 First 0x3f last 0x3f sector size 0x10000 63 Erased 1 sectors ar9341> cp.b 0x80800000 0x9f3f0000