Winsock TCP 客户端和服务器端传送二进制文件

 1 #include<Windows.h>
 2 #include <stdio.h>
 3 #include <stdlib.h>
 4 #include <iostream>
 5 #include <sys/stat.h>
 6 
 7 using namespace std;
 8 
 9 #define PORT    5800
10 #define FILESIZE    4096*100
11 
12 #pragma comment(lib,"Ws2_32.lib")
13 
14 int main()
15 {
16     DWORD wRequiredVersion;
17     WSADATA wsaData;
18     SOCKET lsd, clientsd;
19 
20     FILE *fp = NULL;
21     CHAR imagebuffer[FILESIZE]= {0};
22 
23     int iResult;
24 
25     wRequiredVersion = MAKEWORD(2,2);
26     iResult = WSAStartup(wRequiredVersion,&wsaData);
27     if (iResult != 0)    {
28         cout << "Load socket library failed"<<endl;
29         return -1;
30     }
31 
32     lsd = socket(AF_INET,SOCK_STREAM,0);
33     if(lsd == INVALID_SOCKET)    {
34         cout << "socket failed" <<endl;
35         return -1;
36     }
37     
38     sockaddr_in seraddr = {0};
39     seraddr.sin_family = AF_INET;
40     seraddr.sin_port  = htons(PORT);
41     seraddr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
42     iResult = bind(lsd,(sockaddr*)&seraddr,sizeof(seraddr));
43 
44     if (iResult == SOCKET_ERROR)    {
45         cout << "bind error"<<endl;
46         return -1;
47     }
48     
49 //     iResult = listen(lsd,5);
50 // 
51 //     struct _stat filestruct = {0};
52 // 
53 //     _stat("jj.jpg",&filestruct);
54 // 
55 //     int size = filestruct.st_size;
56 
57     clientsd  = accept(lsd,NULL,NULL);
58 
59     fopen_s(&fp,"jj.jpg","rb");
60     if (fp == NULL)    {
61         cout << "open file error"<<endl;
62         return -1;
63     }
64 
65 
66     fread(imagebuffer,1,FILESIZE,fp);
67 
68     iResult = send(clientsd,imagebuffer,FILESIZE,MSG_OOB);
69 
70 
71     cout << "send image complete !  " << iResult<<endl;
72 
73     char c;
74     cin >>c;
75 
76     closesocket(lsd);
77     closesocket(clientsd);
78 
79     fclose(fp);
80 
81     return 0;
82 }

 1 #include<Windows.h>
 2 #include <stdio.h>
 3 #include <stdlib.h>
 4 #include <iostream>
 5 
 6 using namespace std;
 7 
 8 #define PORT    5800
 9 #define FILESIZE    4096*100
10 
11 #pragma comment(lib,"Ws2_32.lib")
12 
13 int main()
14 {
15     DWORD wRequiredVersion;
16     WSADATA wsaData;
17     SOCKET lsd, clientsd;
18 
19     FILE *fp = NULL;
20     CHAR imagebuffer[FILESIZE]= {0};
21 
22     int iResult;
23 
24     wRequiredVersion = MAKEWORD(2,2);
25     iResult = WSAStartup(wRequiredVersion,&wsaData);
26     if (iResult != 0)    {
27         cout << "Load socket library failed"<<endl;
28         return -1;
29     }
30 
31     lsd = socket(AF_INET,SOCK_STREAM,0);
32     if(lsd == INVALID_SOCKET)    {
33         cout << "socket failed" <<endl;
34         return -1;
35     }
36 
37     sockaddr_in seraddr = {0};
38     seraddr.sin_family = AF_INET;
39     seraddr.sin_port  = htons(PORT);
40     seraddr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
41     
42     iResult = connect(lsd,(sockaddr *)&seraddr,sizeof(seraddr));
43     if (iResult == SOCKET_ERROR) {
44         cout << "connect error "<<endl;
45         return -1;
46     }
47 
48     fopen_s(&fp,"jj.jpg","wb+");
49     if(fp == NULL)    {
50         cout << "crate file error"<<endl;
51         return -1;
52     }
53 
54     iResult = recv(lsd,imagebuffer,FILESIZE,0);
55 
56     iResult = fwrite(imagebuffer,1,FILESIZE,fp);
57 
58     iResult  = GetLastError();
59     fclose(fp);
60 
61     cout << "receive file complete !"<<endl;
62 
63 
64     return 0;
65 }