[socket] socket operation on non socket

Il faut simplement faire tous les tests nécessaires et surtout compiler avec les bonnes options...

Citation:

monclient.c: In function ‘main’:
monclient.c:24: warning: implicit declaration of function ‘inet_addr’
monclient.c:31: warning: suggest parentheses around assignment used as truth value
monclient.c:62: warning: format ‘%s’ expects type ‘char *’, but argument 2 has type ‘char (*)[100]’
monclient.c:18: warning: unused variable ‘merde’
monclient.c:16: warning: unused variable ‘sockaddr_len’

Voilà une version plus propre :

Le serveur :

Code:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
 
#include <sys/socket.h>
#include <netinet/in.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <errno.h>  
 
#define MAX_RECEPT 100
 
int main(int argc, char* argv[])
{
    int socket_server, socket_client, server_len, rd;
    socklen_t client_len;
    struct sockaddr_in sockaddr_server, sockaddr_client;
    char buffer[MAX_RECEPT];
    time_t date;
 
    FILE* f = fopen(argv[1], "a" );
 
    /* Test d'ouverture */
    if(f==NULL) {
        fprintf(stderr, "Probleme d'ouverture du fichier\n");
        return EXIT_FAILURE;
    }
 
    if(argc < 2)
    {
        printf("Parameters error !\n" );
        return EXIT_FAILURE;
    }
 
    if((socket_server = socket(AF_INET, SOCK_STREAM, 0)) < 0)
    {
        printf("Socket creation error !\n" );
        return EXIT_FAILURE;
    }
    sockaddr_server.sin_family = AF_INET;
    sockaddr_server.sin_port = htons(6668);
    sockaddr_server.sin_addr.s_addr = INADDR_ANY;
    server_len = sizeof(sockaddr_server);
    client_len = sizeof(sockaddr_client);
 
    if(bind(socket_server, (struct sockaddr*)&sockaddr_server, server_len) < 0) {
        printf("Socket bind error !\n" );
        printf("%d\n",errno);
        perror("erreur :");
        return EXIT_FAILURE;
    }
 
    if(listen(socket_server, 10) < 0) {
        printf("Socket listen error !\n" );
        return EXIT_FAILURE;
    }
 
 
 
    printf("[~]Waiting connection... \n" );
 
    socket_client = accept(socket_server, (struct sockaddr*)&sockaddr_client, &client_len);
 
    if(socket_client == -1) {
        fprintf(stderr, "Problem with the accept\n");
        return EXIT_FAILURE;
    }
 
    printf("[~]Established connection !\n" );
 
    time(&date);
 
    fprintf(f, "[!]Established connection at %s\n", ctime(&date));
 
    while(1) {
 
        rd = read(socket_client, &buffer, MAX_RECEPT);
        if(rd < 0) {
            printf("Socket read error !" );
            return EXIT_FAILURE;
        }  
 
        if(rd == 0) {
            printf("Socket closed\n");
            break;
        }
 
        printf("From client : %s\n\n", buffer);  
        fprintf(f, "From client : %s\n", buffer);  
    }
 
    close(socket_client);
 
    printf("Saving in %s\n", argv[1]);
 
    return EXIT_SUCCESS;
}

Le client :

Code:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
 
#include <arpa/inet.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>  
#include <string.h>    
#include <stdio.h>
 
#define MAX_SEND 100
 
int main()
{
    int socket_connect;
    struct sockaddr_in sockaddr_connect;
    char buffer[MAX_SEND];
    sockaddr_connect.sin_family = AF_INET;
    sockaddr_connect.sin_addr.s_addr = inet_addr("127.0.0.1");
    sockaddr_connect.sin_port = htons(6668);
    sockaddr_connect.sin_zero[8]=0;
 
    if((socket_connect = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
        printf("Socket creation errror !\n" );
        return EXIT_FAILURE;
    }
 
    printf("socket=%d\n",socket_connect);
 
    if(connect(socket_connect, (struct sockaddr*)&sockaddr_connect, sizeof(sockaddr_connect)) < 0) {
        printf("Socket connection error !\n" );
        perror("erreur");
        return EXIT_FAILURE;
    }
 
    while(1) {
        int wb;
        printf("send>" );
 
        if(fgets(buffer, sizeof(buffer), stdin)==NULL) {
            printf("Problem with fgets\n");
            break;
        }
 
        wb = write(socket_connect, buffer, MAX_SEND);
        printf("wb %d\n",wb);
        if(wb != MAX_SEND) {
            fprintf(stderr,"Erreur with writing to server\n");
            return EXIT_FAILURE;
        }
    }
 
    close(socket_connect);
    return EXIT_SUCCESS;
}