continue working on implementing lib9660 into the kernel

src/fs/vfs.c

@@ -0,0 +1,72 @@
+#include "../include/vfs.h"
+#include "../include/stdio.h"
+#include "../include/string.h"
+
+l9660_fs   global_fs;
+
+bool read_sector_callback(l9660_fs *fs, void *buf, uint32_t sector) {
+    // The 'fs' parameter is not needed for our simple case, so we can ignore it.
+    (void)fs;
+
+    // Call your existing CD-ROM read function to read 1 sector.
+    // We assume the CD-ROM is the secondary master (0x170).
+    int result = read_cdrom(0x170, false, sector, 1, (uint16_t*)buf);
+
+    // lib9660 expects 'true' for success and 'false' for failure.
+    // Your read_cdrom returns 0 for success.
+    return (result == 0);
+}
+
+void mount_fs()
+{
+    l9660_status status = l9660_openfs(&global_fs, read_sector_callback);
+
+    if (status != L9660_OK) {
+        printf("Error opening ISO9660 filesystem!\n");
+        return;
+    }
+    printf("FS mounted\n");
+}
+
+void list_files(l9660_dir *dir)
+{
+    debug_log("----------CONTENTS----------");
+    l9660_status status;
+    for (;;) {
+        l9660_dirent *dent;
+        status = l9660_readdir(dir, &dent);
+
+        if (dent == NULL || status != L9660_OK) {
+            break; // End of directory or error
+        }
+
+        // Print the filename. It's not null-terminated, so use the length field.
+        for (int i = 0; i < dent->name_len; ++i) {
+            printf("%c", dent->name[i]);
+        }
+        printf("\n");
+    }
+}
+
+
+size_t vfs_read_file(l9660_file *file, uint8_t* buffer)
+{
+    size_t total_read = 0;
+    for(;;) {
+        char buf[128];
+        size_t read;
+        l9660_read(file, buf, 128, &read);
+
+        //check for EOF
+        if (read == 0)
+            break;
+        
+        memcpy(buffer, buf, 128);
+        buffer += 128;
+        total_read += read;
+    }
+
+    //reset the current position to the original position
+    buffer -= total_read;
+    return total_read;
+}