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SCR/SCR1.2/TP11/copy.c

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2024-09-10 15:13:11 +02:00
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#define CHUNK_SIZE 256
int main(int argc, char *argv[])
{
if (argc != 2) {
fprintf(stderr, "Usage: %s <file_name>\n", argv[0]);
return EXIT_FAILURE;
}
int file_desc = open(argv[1], O_RDONLY);
if (file_desc < 0)
{
perror("Erreur lors de l'ouverture du fichier");
return EXIT_FAILURE;
}
char buffer[CHUNK_SIZE];
ssize_t bytes_read;
while ((bytes_read = read(file_desc, buffer, sizeof(buffer))) > 0)
{
if (write(STDOUT_FILENO, buffer, bytes_read) < 0)
{
perror("Erreur lors de l'écriture");
close(file_desc);
return EXIT_FAILURE;
}
}
if (bytes_read < 0)
{
perror("Erreur lors de la lecture du fichier");
close(file_desc);
return EXIT_FAILURE;
}
close(file_desc);
return EXIT_SUCCESS;
}