简介：
本文将介绍在使用OpenWRT路由器时进行文件传输的方法和技巧，帮助用户更加高效地管理和传输数据。
以下是使用Linux C socket进行OpenWrt路由器文件传输的客户端和服务端代码示例：
服务端代码：
```c
#include
#include
#include
#include
#include
#include
#define PORT 8080
int main() {
int server_fd, new_socket;
struct sockaddr_in address;
int addrlen = sizeof(address);
if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0) {
perror(Socket failed);
exit(EXIT_FAILURE);
}
address.sin_family = AF_INET;
address.sin_addr.s_addr = INADDR_ANY;
address.sin_port = htons(PORT);
if (bind(server_fd, (struct sockaddr *)&address, sizeof(address)) < 0) {
perror(Bind failed);
close(server_fd);
exit(EXIT_FAILURE);
}
if (listen(server_fd, 3) < 0) {
perror(Listen failed);
close(server_fd);
exit(EXIT_FAILURE);
}
if ((new_socket = accept(server_fd, (struct sockaddr *)&address, (socklen_t*)&addrlen)) < 0) {
perror(Accept failed);
close(server_fd);
exit(EXIT_FAILURE);
}
FILE *fp;
fp = fopen(example.txt, w+);
char buffer[1024] = {0};
int valread;
while ((valread = read(new_socket, buffer, 1023)) > 0) {
write(fp, buffer, valread);
bzero(buffer, sizeof(buffer));
}
fclose(fp);
close(new_socket);
return 0;
}
```
客户端代码：
```c
#include
#include
#include
#include
#include
#define PORT 8080
int main(int argc, char *argv[]) {
int sock = 0, valread;
struct sockaddr_in serv_addr;
FILE *fp;
fp = fopen(example.txt, r);
if (fp == NULL) {
printf(\nFile does not exist\n);
return -1;
}
char buffer[1024] = {0};
sock = socket(AF_INET, SOCK_STREAM, 0);
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(PORT);
if (inet_pton(AF_INET, SERVER_IP, &serv_addr.sin_addr) <= 0) {
printf(\nInvalid address/ Address not supported \n);
return -1;
}
connect(sock, (struct sockaddr *)&serv_addr, sizeof(serv_addr));
while(fgets(buffer, sizeof(buffer), fp)) {
send(sock , buffer , strlen(buffer) , 0);
}
close(sock);
fclose(fp);
return 0;
}
```
注意：在客户端代码中，你需要将SERVER_IP替换为实际的服务器IP地址。
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