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os: RANDOM_BASENAME_LEN -> random_basename_len

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This commit is contained in:
Jon Parise
2026-04-25 16:29:25 -04:00
parent e9ca0f8c9a
commit 13ada38ac4
2 changed files with 11 additions and 11 deletions
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6
src/os/TempDir.zig
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@@ -16,15 +16,15 @@ parent: Dir,
/// Name buffer that name points into. Generally do not use. To get the
/// name call the name() function.
name_buf: [file.RANDOM_BASENAME_LEN:0]u8,
name_buf: [file.random_basename_len:0]u8,
/// Create the temporary directory.
pub fn init() !TempDir {
// Note: the tmp_path_buf sentinel is important because it ensures
// we actually always have RANDOM_BASENAME_LEN+1 bytes of available
// we actually always have random_basename_len+1 bytes of available
// space. We need that so we can set the sentinel in the case we use
// all the possible length.
var tmp_path_buf: [file.RANDOM_BASENAME_LEN:0]u8 = undefined;
var tmp_path_buf: [file.random_basename_len:0]u8 = undefined;
const dir = dir: {
const cwd = std.fs.cwd();

16
src/os/file.zig
View File

@@ -86,17 +86,17 @@ const b64_encoder = std.base64.url_safe_no_pad.Encoder;
pub const RandomBasenameError = error{BufferTooSmall};
/// Length of the basename produced by `randomBasename`.
pub const RANDOM_BASENAME_LEN = b64_encoder.calcSize(random_basename_bytes);
pub const random_basename_len = b64_encoder.calcSize(random_basename_bytes);
/// Write a random filesystem-safe base64 basename of length
/// `RANDOM_BASENAME_LEN` into `buf` and return a slice over the
/// `random_basename_len` into `buf` and return a slice over the
/// written bytes. Returns `error.BufferTooSmall` if `buf` is too
/// short.
pub fn randomBasename(buf: []u8) RandomBasenameError![]const u8 {
if (buf.len < RANDOM_BASENAME_LEN) return error.BufferTooSmall;
if (buf.len < random_basename_len) return error.BufferTooSmall;
var rand_buf: [random_basename_bytes]u8 = undefined;
std.crypto.random.bytes(&rand_buf);
return b64_encoder.encode(buf[0..RANDOM_BASENAME_LEN], &rand_buf);
return b64_encoder.encode(buf[0..random_basename_len], &rand_buf);
}
/// Return a freshly-allocated path of the form `{TMPDIR}/{prefix}{random}`.
@@ -111,7 +111,7 @@ pub fn randomTmpPath(
) std.mem.Allocator.Error![]u8 {
const tmp_dir = allocTmpDir(allocator) orelse "/tmp";
defer freeTmpDir(allocator, tmp_dir);
var name_buf: [RANDOM_BASENAME_LEN]u8 = undefined;
var name_buf: [random_basename_len]u8 = undefined;
const basename = randomBasename(&name_buf) catch unreachable;
return std.fmt.allocPrint(
allocator,
@@ -123,14 +123,14 @@ pub fn randomTmpPath(
test randomBasename {
const testing = std.testing;
var buf: [RANDOM_BASENAME_LEN]u8 = undefined;
var buf: [random_basename_len]u8 = undefined;
const name = try randomBasename(&buf);
try testing.expectEqual(RANDOM_BASENAME_LEN, name.len);
try testing.expectEqual(random_basename_len, name.len);
for (name) |c| {
const ok = std.ascii.isAlphanumeric(c) or c == '-' or c == '_';
try testing.expect(ok);
}
var small: [RANDOM_BASENAME_LEN - 1]u8 = undefined;
var small: [random_basename_len - 1]u8 = undefined;
try testing.expectError(error.BufferTooSmall, randomBasename(&small));
}