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 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168
|
#include <stdio.h>
#include <stdlib.h>
#define BLOC 8
typedef struct
{
char type[10];
char arg[50];
char result[BLOC];
unsigned long size;
unsigned long num;
}
command;
/* network simulator */
typedef int SOCKET;
static FILE *G_net;
static int recv (SOCKET fd, void *data, int size, int a)
{
int n = -1;
if (G_net != NULL)
{
n = fread (data, size, 1, G_net);
}
(void) fd;
(void) a;
return n;
}
static int send (SOCKET fd, void const *data, int size, int a)
{
int n = -1;
if (G_net != NULL)
{
n = fwrite (data, size, 1, G_net);
}
(void) fd;
(void) a;
return n;
}
static void recevoir (SOCKET sd, char const *filePath)
{
/* On ouvre le fichier en ecriture */
FILE *fichier = fopen (filePath, "wb");
if (fichier != NULL)
{
command entete = { "", "", "", 0, 0 };;
recv (sd, &entete, sizeof (command), 0);
unsigned long tailleFichier = 0;
/* On reconstruit le fichier */
while (tailleFichier < entete.size)
{
command cmd= { "", "", "", 0, 0 };
int lon = recv (sd, &cmd, sizeof (command), 0);
fwrite (cmd.result, cmd.size, 1, fichier);
tailleFichier = tailleFichier + cmd.size;
printf ("Paquet n°%lu de %d bits\n", cmd.num, lon);
printf ("NB Ecrits : %lu octets\n", cmd.size);
printf ("Avancement : %lu/%lu \n", tailleFichier, entete.size);
printf ("Type : %s \n Arg :%s\n", cmd.type, cmd.arg);
system ("pause()");
}
fclose (fichier);
printf ("Fichier crée avec une taille de %lu octets\n", tailleFichier);
}
}
static unsigned long get_size (char const *fname)
{
unsigned long size = 0;
FILE *fp = fopen (fname, "rb");
if (fp != NULL)
{
fseek (fp, 0, SEEK_END);
size = ftell (fp);
fclose (fp), fp = NULL;
printf ("size = %lu\n", size);
}
return size;
}
static void envoyer (SOCKET sd, char const *fname)
{
unsigned long taille = get_size (fname);
if (taille != 0)
{
FILE *fichier = fopen (fname, "rb");
if (fichier != NULL)
{
int end = 0;
command cmd = { "", "", "", 0, 0 };
unsigned long m = 0;
unsigned long numPaquet = 0;
/* en-tete */
cmd.size = taille;
send (sd, &cmd, sizeof (command), 0);
while (!end)
{
int nb_bloc_lus = fread (&cmd.result, BLOC, 1, fichier);
if (nb_bloc_lus == 0)
{
cmd.size = (taille - m);
end = 1;
}
else
{
cmd.size = BLOC;
}
cmd.num = numPaquet;
printf ("Paquet n°%lu\n", cmd.num);
printf ("NB Lus : %lu octets (%lu)\n", cmd.size, (taille - m));
send (sd, &cmd, sizeof (command), 0);
m = m + cmd.size;
printf ("Avancement : %lu/%lu \n", m, taille);
numPaquet++;
}
fclose (fichier), fichier = NULL;
}
else
{
perror(fname);
}
}
}
int main (void)
{
if (G_net == NULL)
{
G_net = fopen ("net.bin", "wb");
if (G_net != NULL)
{
printf("envoyer()\n");
envoyer (0, "out.txt");
#if 1
G_net = freopen ("net.bin", "rb", G_net);
}
if (G_net != NULL)
{
printf("recevoir()\n");
recevoir (0, "in.txt");
}
if (G_net != NULL)
{
#endif
fclose (G_net), G_net = NULL;
}
}
return 0;
} |
Partager