/* copies the "hidden" sectors, between the boot sector and the FAT. Required, * for the Windows 98 FAT32 boot loader */ int _copy_hidden_sectors (FatOpContext* ctx) { FatSpecific* old_fs_info = FAT_SPECIFIC (ctx->old_fs); FatSpecific* new_fs_info = FAT_SPECIFIC (ctx->new_fs); PedSector first = 1; PedSector last; PedSector count; /* nothing to copy for FAT16 */ if (old_fs_info->fat_type == FAT_TYPE_FAT16 || new_fs_info->fat_type == FAT_TYPE_FAT16) return 1; last = PED_MIN (old_fs_info->fat_offset, new_fs_info->fat_offset) - 1; count = last - first + 1; PED_ASSERT (count < BUFFER_SIZE); if (!ped_geometry_read (ctx->old_fs->geom, old_fs_info->buffer, first, count)) return 0; if (!ped_geometry_write (ctx->new_fs->geom, old_fs_info->buffer, first, count)) return 0; return 1; }
/** * Return a constraint that requires a region to satisfy both \p a and \p b. * * Moreover, any region satisfying \p a and \p b will also satisfy the returned * constraint. * * \return \c NULL if no solution could be found (note that \c NULL is a valid * PedConstraint). */ PedConstraint* ped_constraint_intersect (const PedConstraint* a, const PedConstraint* b) { PedAlignment* start_align; PedAlignment* end_align; PedGeometry* start_range; PedGeometry* end_range; PedSector min_size; PedSector max_size; PedConstraint* constraint; if (!a || !b) return NULL; start_align = ped_alignment_intersect (a->start_align, b->start_align); if (!start_align) goto empty; end_align = ped_alignment_intersect (a->end_align, b->end_align); if (!end_align) goto empty_destroy_start_align; start_range = ped_geometry_intersect (a->start_range, b->start_range); if (!start_range) goto empty_destroy_end_align; end_range = ped_geometry_intersect (a->end_range, b->end_range); if (!end_range) goto empty_destroy_start_range; min_size = PED_MAX (a->min_size, b->min_size); max_size = PED_MIN (a->max_size, b->max_size); constraint = ped_constraint_new ( start_align, end_align, start_range, end_range, min_size, max_size); if (!constraint) goto empty_destroy_end_range; ped_alignment_destroy (start_align); ped_alignment_destroy (end_align); ped_geometry_destroy (start_range); ped_geometry_destroy (end_range); return constraint; empty_destroy_end_range: ped_geometry_destroy (end_range); empty_destroy_start_range: ped_geometry_destroy (start_range); empty_destroy_end_align: ped_alignment_destroy (end_align); empty_destroy_start_align: ped_alignment_destroy (start_align); empty: return NULL; }