static int of_read(struct boot_file_t* file, unsigned int size, void* buffer);
static int of_seek(struct boot_file_t* file, unsigned int newpos);
static int of_close(struct boot_file_t* file);
+static int of_ino_size(struct boot_file_t* file, unsigned int *size);
static int of_net_open(struct boot_file_t* file,
struct partition_t* part, struct boot_fspec_t* fspec);
static int of_net_read(struct boot_file_t* file, unsigned int size, void* buffer);
static int of_net_seek(struct boot_file_t* file, unsigned int newpos);
-static unsigned int of_net_ino_size(struct boot_file_t* file);
+static int of_net_ino_size(struct boot_file_t* file, unsigned int *size);
struct fs_t of_filesystem =
of_open,
of_read,
of_seek,
- of_close
+ of_close,
+ of_ino_size,
};
struct fs_t of_net_filesystem =
file->pos = 0;
file->buffer = NULL;
+ file->devspec_cache = strdup(buffer);
+
if ((file->of_device == PROM_INVALID_HANDLE) || (file->of_device == 0))
{
DEBUG_LEAVE(FILE_ERR_BAD_FSYS);
return 0;
}
-static unsigned int
-of_net_ino_size(struct boot_file_t* file)
+static int
+of_ino_size(struct boot_file_t* file, unsigned int *size)
+{
+ static char buffer[1<<20];
+ int read_count = 0;
+
+ if (file->len == 0) {
+ DEBUG_F("Estimating size of: %p\n", file->of_device);
+ while (prom_read(file->of_device, (void *)&buffer, sizeof(buffer))
+ != 0) {
+ read_count++;
+ DEBUG_F("read_count == %d\n", read_count);
+ }
+ file->pos = 0;
+ file->len = read_count * sizeof(buffer);
+ /* sigh:
+ * prom_seek(file->of_device, file->pos);
+ * doen't work */
+ prom_close(file->of_device);
+ DEBUG_F("Re-Opening: \"%s\"\n", file->devspec_cache);
+ file->of_device = prom_open(file->devspec_cache);
+ DEBUG_F("file->of_device = %p\n", file->of_device);
+ if (file->of_device == 0) {
+ file->len = 0;
+ return FILE_IOERR;
+ }
+ }
+
+ DEBUG_F("Estimated size is: %Lu(%d)\n", (unsigned long long)file->len,
+ read_count);
+ *size = file->len;
+ return FILE_ERR_OK;
+}
+
+static int
+of_net_ino_size(struct boot_file_t* file, unsigned int *size)
{
- return file->len;
+ *size = file->len;
+ return FILE_ERR_OK;
}
/*