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Add basic validation in FormatVolumeOptions setters

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This commit is contained in:
Rafał Harabień 2018-12-29 19:43:42 +01:00
parent dc128b7308
commit 8ddd1de5fc
1 changed files with 5 additions and 2 deletions
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7
src/fs.rs
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@ -841,6 +841,7 @@ impl FormatVolumeOptions {
/// If option is not specified optimal cluster size is selected based on partition size and
/// optionally FAT type override (if specified using `fat_type` method).
pub fn bytes_per_cluster(mut self, bytes_per_cluster: u32) -> Self {
assert!(bytes_per_cluster.count_ones() == 1 && bytes_per_cluster >= 512, "Invalid bytes_per_cluster");
self.bytes_per_cluster = Some(bytes_per_cluster);
self
}
@ -861,6 +862,7 @@ impl FormatVolumeOptions {
/// Sector size must be a power of two and be in range 512 - 4096.
/// Default is `512`.
pub fn bytes_per_sector(mut self, bytes_per_sector: u16) -> Self {
assert!(bytes_per_sector.count_ones() == 1 && bytes_per_sector >= 512, "Invalid bytes_per_sector");
self.bytes_per_sector = Some(bytes_per_sector);
self
}
@ -877,6 +879,7 @@ impl FormatVolumeOptions {
///
/// Total root directory size should be dividable by sectors size so keep it a multiple of 16 (for default sector
/// size).
/// Note: this limit is not used on FAT32 volumes.
/// Default is `512`.
pub fn max_root_dir_entries(mut self, max_root_dir_entries: u16) -> Self {
self.max_root_dir_entries = Some(max_root_dir_entries);
@ -885,10 +888,10 @@ impl FormatVolumeOptions {
/// Set number of File Allocation Tables
///
/// The only allowed values are `1` and `2`. If `2` is used FAT is mirrored.
/// The only allowed values are `1` and `2`. If value `2` is used the FAT is mirrored.
/// Default is `2`.
pub fn fats(mut self, fats: u8) -> Self {
assert!(fats >= 1 && fats <= 2);
assert!(fats >= 1 && fats <= 2, "Invalid number of FATs");
self.fats = Some(fats);
self
}