C语言Post和Get方法 ，拿过去直接用

我自己实现的post 和get 请求方法，可以直接使用在单片机上，比如ESP32 上，OPl1000 上面，
下面直接上代码。

int client_init(char *ip_add,int prot)
{
    int client_fd;
    struct sockaddr_in   servaddr;
    if( (client_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0){
        printf(" socket error  !n");
	return -1;
    }
    memset(&servaddr, 0, sizeof(servaddr));
    servaddr.sin_family = AF_INET;
    servaddr.sin_port = htons(prot);
    if( inet_pton(AF_INET,ip_add, &servaddr.sin_addr) <= 0){
   	printf(" inet_pton error  !n");
        return -1;
    }
    if( connect(client_fd, (struct sockaddr*)&servaddr, sizeof(servaddr)) < 0){
    	printf(" connect error  !n");        
	return -1;
    }
    return client_fd;
}
//GET 请求
int http_get_request(int fd,char *path,char *key,char *num)
{
	char message[128*2];
	sprintf(message, "GET %s?%s=%s HTTP/1.1rn",path,key,num);
	strcat(message, "Host:自己的网站地址URLrn");
	strcat(message, "Accept: */*rn");
	strcat(message, "User-Agent: Mozilla/5.0(compatible)rn");
	strcat(message, "connection:Keep-Alivern");
	strcat(message, "rnrn");
	if(send(fd,message,strlen(message),0)<=0)
	{
		printf("send data error n");
		return -1;	
	}
	return 0;
}
//POSt 请求
int http_post_request(int fd,char *macid,char *wifiname,char *name_num,char *wifipwd,char *pwd_num)
{

	char message[128*3];
        char str[64];
	char str_len[8];
	sprintf(str,"%s=%s&%s=%s",wifiname,name_num,wifipwd,pwd_num);
	sprintf(message, "POST /handle/sendInfo?mac_id=%s HTTP/1.1rn",macid);
	strcat(message, "Host:自己的网站地址URLrn");
        strcat(message, "Content-Type: application/x-www-form-urlencodedrn");
	strcat(message, "Content-Length:");
        sprintf(str_len,"%d",strlen(str)+2);
	strcat(message,str_len);
	strcat(message,"rn");
        strcat(message, "connection:Keep-Alivern");
	strcat(message, "rn");        
	strcat(message,str);
	strcat(message,"rn");
	printf("%s",message);
	if(send(fd,message,strlen(message),0)<=0)
	{
		printf("send data error n");
		return -1;	
	}
	return 0;
}