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68 lines
1.7 KiB
68 lines
1.7 KiB
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <unistd.h>
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#define BUFFER_SIZE 1024
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void usage() {
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fprintf(stderr, "Usage: client hostname port\n");
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exit(1);
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}
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int main(int argc, char **argv) {
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if (argc != 3) {
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fprintf(stderr, "Erreur : Nombre incorrect d'arguments !\n");
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usage();
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}
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const char *hostname = argv[1];
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int port = atoi(argv[2]);
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int clientSocket = socket(AF_INET6, SOCK_STREAM, 0);
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if (clientSocket == -1) {
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perror("Error creating client socket");
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exit(EXIT_FAILURE);
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}
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struct sockaddr_in6 serverAddress;
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memset(&serverAddress, 0, sizeof(serverAddress));
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serverAddress.sin6_family = AF_INET6;
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serverAddress.sin6_port = htons(port);
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// if (inet_pton(AF_INET6, hostname, &(serverAddress.sin6_addr)) <= 0) {
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// perror("Error converting IP address");
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// close(clientSocket);
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// exit(EXIT_FAILURE);
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// }
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if (connect(clientSocket, (struct sockaddr *)&serverAddress, sizeof(serverAddress)) == -1) {
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perror("Error connecting to server");
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close(clientSocket);
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exit(EXIT_FAILURE);
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}
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printf("Connected to server. Receiving file...\n");
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FILE *file = fopen("received_file.txt", "wb");
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if (!file) {
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perror("Error opening file for writing");
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close(clientSocket);
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exit(EXIT_FAILURE);
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}
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unsigned char buffer[BUFFER_SIZE];
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size_t bytesRead;
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while ((bytesRead = recv(clientSocket, buffer, BUFFER_SIZE, 0)) > 0) {
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fwrite(buffer, 1, bytesRead, file);
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}
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fclose(file);
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close(clientSocket);
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return 0;
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}
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