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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <unistd.h>
#define BUFFER_SIZE 1024
void usage() {
fprintf(stderr, "Usage: serveur port fichier\n");
exit(1);
}
int main(int argc, char **argv) {
if (argc != 3) {
fprintf(stderr, "Erreur : Nombre incorrect d'arguments !\n");
usage();
}
int port = atoi(argv[1]);
int serverSocket = socket(AF_INET6, SOCK_STREAM, 0);
if (serverSocket == -1) {
perror("Error creating server socket");
exit(EXIT_FAILURE);
}
struct sockaddr_in6 serverAddress;
memset(&serverAddress, 0, sizeof(serverAddress));
serverAddress.sin6_family = AF_INET6;
serverAddress.sin6_addr = in6addr_any;
serverAddress.sin6_port = htons(port);
if (bind(serverSocket, (struct sockaddr *)&serverAddress, sizeof(serverAddress)) == -1) {
perror("Error binding server socket");
close(serverSocket);
exit(EXIT_FAILURE);
}
if (listen(serverSocket, 1) == -1) {
perror("Error listening on server socket");
close(serverSocket);
exit(EXIT_FAILURE);
}
printf("Server listening on port %d...\n", port);
while (1) {
int clientSocket = accept(serverSocket, NULL, NULL);
if (clientSocket == -1) {
perror("Error accepting client connection");
close(serverSocket);
exit(EXIT_FAILURE);
}
printf("Client connected. Transferring file...\n");
FILE *file = fopen(argv[2], "rb");
if (!file) {
perror("Error opening file for reading");
close(clientSocket);
continue; // Move on to the next client
}
// Send file content to client
unsigned char buffer[BUFFER_SIZE];
size_t bytesRead;
while ((bytesRead = fread(buffer, 1, BUFFER_SIZE, file)) != 0) {
if (send(clientSocket, buffer, bytesRead, 0) == -1) {
perror("Error sending file content to client");
fclose(file);
close(clientSocket);
continue;
}
}
printf("File transfer complete.\n");
fclose(file);
close(clientSocket);
}
close(serverSocket);
return 0;
}