[소켓]윈도우 서버, 리눅스 클라이언트..

#pragma comment(lib,"ws2_32")
#include <stdio.h>
#include <stdlib.h>
#include <winsock2.h>
 
void ErrorHandling(char* message);
 
int main(int argc, char** argv)
{
	WSADATA wsaData;	 //	초기화 할때 쓰려고 선언했습니다.	//
	SOCKET hServSock, hClntSock;
	SOCKADDR_IN servAddr, clntAddr;
	char revbuf[LENGTH]; // Receiver buffer
	int success = 0;
	int szClntAddr;
 
	if (argc != 2) {	//	포트정보가 입력되었는지 여부 검사	//
		printf("Usage : %s <port>\n", argv[0]);
		exit(1);
	}
 
	//	윈속 2.2사용 초기화	//
	if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)	//	Error check	//
		ErrorHandling("WSAStartup() error!");
	else
		printf("[Server] Winsock2.2 Configuring is successfully\n");
 
	//	소켓을 생성합니다.	//
	hServSock = socket(AF_INET, SOCK_STREAM, 0);	//	TCP socket	//
	if (hServSock == INVALID_SOCKET)
		ErrorHandling("socket() error");
	else
		printf("[Server] Creating socket successfully\n");
 
	memset(&servAddr, 0, sizeof(servAddr));
	servAddr.sin_family = AF_INET;			//	TCP를 사용합니다.	//
	servAddr.sin_addr.s_addr = htonl(INADDR_ANY);	//	모든 IP를 받아줍니다.	//
	servAddr.sin_port = htons(atoi(argv[1]));	//	포트 정보	//
	//  host to network short
 
	if (bind(hServSock, (SOCKADDR*)&servAddr, sizeof(servAddr)) == SOCKET_ERROR)	//	소켓에 주소를 부여합니다.	//
		ErrorHandling("bind() error");
	else
		printf("[Server] Binded tcp port %d in addr host successfully.\n", PORT);
 
	if (listen(hServSock, 10) == SOCKET_ERROR)	//	소켓대기상태로 만듭니다, 동시에 10명까지 가능합니다.	//
		ErrorHandling("listen() error");
	else
		printf("[Server] Listening the port %d successfully.\n", PORT);
 
	while (success == 0)
	{
		szClntAddr = sizeof(SOCKADDR_IN);
 
		/* Wait a connection, and obtain a new socket file despriptor for single connection */
		if ((hClntSock = accept(hServSock, (SOCKADDR*)&clntAddr, &szClntAddr)) == SOCKET_ERROR)
		{
			fprintf(stderr, "ERROR: Obtaining new Socket Despcritor. (errno = %d)\n", errno);
			exit(1);
		}
		else
			printf("[Server] Server has got connected from Clinet.\n");// inet_ntoa(addr_remote.sin_addr));
 
		/*	Receive File from Client(show console)	*/
		//int fr_block_sz = 0;
		//while ((fr_block_sz = recv(hClntSock, revbuf, LENGTH, 0)) > 0)
		//{
		//	printf(revbuf);
		//}
 
 
		/*	Receive File from Client(save text)		*/
		char* fr_name = "C:\\receive.txt";
		FILE *fr;
		fr = fopen(fr_name, "a");
		if (fr == NULL)
			printf("File %s Cannot be opened file on server.\n", fr_name);
		else
		{
			memset(revbuf, LENGTH, '0');
			int fr_block_sz = 0;
			while ((fr_block_sz = recv(hClntSock, revbuf, LENGTH, 0)) > 0)
			{
				int write_sz = fwrite(revbuf, sizeof(char), fr_block_sz, fr);
				if (write_sz < fr_block_sz)
				{
					ErrorHandling("File write failed on server.\n");
				}
				memset(revbuf, LENGTH, '0');
				if (fr_block_sz == 0 || fr_block_sz != 1024)
				{
					break;
				}
			}
		}
	}
	return 0;
}
 
void ErrorHandling(char* message)
{
	fputs(message, stderr);
	fputc('\n', stderr);
	exit(1);
}

#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/wait.h>
#include <sys/socket.h>
#include <signal.h>
#include <ctype.h>          
#include <arpa/inet.h>
#include <netdb.h>
 
#define PORT 20000
#define LENGTH 512 
 
 
void error(const char *msg)
{
    perror(msg);
    exit(1);
}
 
int main(int argc, char *argv[])
{
    /* Variable Definition */
    int sockfd; 
    int nsockfd;
    char revbuf[LENGTH]; 
    struct sockaddr_in remote_addr;
 
    /* Get the Socket file descriptor */
    if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
    {
        fprintf(stderr, "ERROR: Failed to obtain Socket Descriptor! (errno = %d)\n",errno);
        exit(1);
    }
 
    /* Fill the socket address struct */
    remote_addr.sin_family = AF_INET; 
    remote_addr.sin_port = htons(PORT); 
    inet_pton(AF_INET, "127.0.0.1", &remote_addr.sin_addr); 
    bzero(&(remote_addr.sin_zero), 8);
 
    /* Try to connect the remote */
    if (connect(sockfd, (struct sockaddr *)&remote_addr, sizeof(struct sockaddr)) == -1)
    {
        fprintf(stderr, "ERROR: Failed to connect to the host! (errno = %d)\n",errno);     <<<<<< 실행시 이쪽 에러가 발생됩니다.
        exit(1);
    }
    else 
        printf("[Client] Connected to server at port %d...ok!\n", PORT);
 
        char* fs_name = "/home/aryan/Desktop/quotidiani.txt";
        char sdbuf[LENGTH]; 
        printf("[Client] Sending %s to the Server... ", fs_name);
        FILE *fs = fopen(fs_name, "r");
        if(fs == NULL)
        {
            printf("ERROR: File %s not found.\n", fs_name);
            exit(1);
        }
 
        bzero(sdbuf, LENGTH); 
        int fs_block_sz; 
        while((fs_block_sz = fread(sdbuf, sizeof(char), LENGTH, fs)) > 0)
        {
            if(send(sockfd, sdbuf, fs_block_sz, 0) < 0)
            {
                fprintf(stderr, "ERROR: Failed to send file %s. (errno = %d)\n", fs_name, errno);
                break;
            }
            bzero(sdbuf, LENGTH);
        }
        printf("Ok File %s from Client was Sent!\n", fs_name);
 
    close (sockfd);
    printf("[Client] Connection lost.\n");
    return (0);
}