56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#define CHUNK_SIZE 256
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int main(int argc, char *argv[])
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{
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if (argc != 3)
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{
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fprintf(stderr, "Usage: %s <source_file> <destination_file>\n", argv[0]);
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return EXIT_FAILURE;
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}
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int source_desc = open(argv[1], O_RDONLY);
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if (source_desc < 0)
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{
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perror("Erreur lors de l'ouverture du fichier source");
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return EXIT_FAILURE;
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}
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int dest_desc = open(argv[2], O_WRONLY | O_CREAT | O_TRUNC, 0644);
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if (dest_desc < 0)
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{
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perror("Erreur lors de l'ouverture/la création du fichier destination");
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close(source_desc);
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return EXIT_FAILURE;
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}
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char buffer[CHUNK_SIZE];
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ssize_t bytes_read;
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while ((bytes_read = read(source_desc, buffer, sizeof(buffer))) > 0)
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{
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if (write(dest_desc, buffer, bytes_read) < 0)
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{
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perror("Erreur lors de l'écriture");
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close(source_desc);
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close(dest_desc);
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return EXIT_FAILURE;
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}
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}
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if (bytes_read < 0)
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{
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perror("Erreur lors de la lecture du fichier source");
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close(source_desc);
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close(dest_desc);
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return EXIT_FAILURE;
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}
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close(source_desc);
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close(dest_desc);
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return EXIT_SUCCESS;
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}
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