写一段ftp上传文件的代码
时间: 2023-04-01 09:03:35 浏览: 58
以下是一个简单的FTP上传文件的代码示例:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <unistd.h>
#define BUF_SIZE 1024
int main(int argc, char *argv[]) {
if (argc != 4) {
printf("Usage: %s <IP> <port> <filename>\n", argv[]);
exit(1);
}
char *ip = argv[1];
int port = atoi(argv[2]);
char *filename = argv[3];
FILE *fp = fopen(filename, "rb");
if (fp == NULL) {
perror("fopen");
exit(1);
}
int sockfd = socket(AF_INET, SOCK_STREAM, );
if (sockfd == -1) {
perror("socket");
exit(1);
}
struct sockaddr_in addr;
memset(&addr, , sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = inet_addr(ip);
addr.sin_port = htons(port);
if (connect(sockfd, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
perror("connect");
exit(1);
}
char buf[BUF_SIZE];
int nread;
while ((nread = fread(buf, 1, BUF_SIZE, fp)) > ) {
if (send(sockfd, buf, nread, ) == -1) {
perror("send");
exit(1);
}
}
fclose(fp);
close(sockfd);
printf("File %s uploaded successfully!\n", filename);
return ;
}