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autrh: Check if faillock file exists, not just dir

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Signed-off-by: AnErrupTion <anerruption@disroot.org>
This commit is contained in:
AnErrupTion
2026-08-27 10:54:16 +02:00
parent 255af0f1d4
commit 809728e06a
1 changed files with 11 additions and 16 deletions
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27
src/auth.zig
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@@ -67,9 +67,12 @@ pub fn authenticate(
password: []const u8,
maybe_new_password: ?[]const u8,
) !void {
const lock_path = try std.fs.path.join(allocator, &.{ options.faillock_tally_dir, login });
defer allocator.free(lock_path);
var faillock_entries: usize = 0;
if (try dirExists(io, options.faillock_tally_dir)) {
faillock_entries = try getFaillockEntries(allocator, io, login, options.faillock_tally_dir);
if (try fileExists(io, lock_path)) {
faillock_entries = try getFaillockEntries(io, lock_path);
}
var tty_buffer: [3]u8 = undefined;
@@ -112,8 +115,8 @@ pub fn authenticate(
// Do the PAM routine
try log_file.info(io, "auth/pam", "authenticating", .{});
status = interop.pam.pam_authenticate(handle, 0);
if (status == interop.pam.PAM_AUTH_ERR and try dirExists(io, options.faillock_tally_dir)) {
const new_faillock_entries = try getFaillockEntries(allocator, io, login, options.faillock_tally_dir);
if (status == interop.pam.PAM_AUTH_ERR and try fileExists(io, lock_path)) {
const new_faillock_entries = try getFaillockEntries(io, lock_path);
if (faillock_entries == new_faillock_entries) {
return error.AccountLocked;
@@ -213,25 +216,17 @@ pub fn authenticate(
if (shared_err.readError()) |err| return err;
}
fn dirExists(io: std.Io, path: []const u8) !bool {
var dir = std.Io.Dir.openDirAbsolute(io, path, .{}) catch |err| {
fn fileExists(io: std.Io, path: []const u8) !bool {
var file = std.Io.Dir.openFileAbsolute(io, path, .{}) catch |err| {
if (err == error.FileNotFound) return false;
return err;
};
defer dir.close(io);
defer file.close(io);
return true;
}
fn getFaillockEntries(
allocator: std.mem.Allocator,
io: std.Io,
username: []const u8,
tally_dir: []const u8,
) !usize {
const path = try std.fs.path.join(allocator, &.{ tally_dir, username });
defer allocator.free(path);
fn getFaillockEntries(io: std.Io, path: []const u8) !usize {
var file = try std.Io.Dir.openFileAbsolute(io, path, .{});
defer file.close(io);