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pty: reset all signals after fork

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This commit is contained in:
Mitchell Hashimoto
2024-08-31 14:52:55 -07:00
parent 9f6a28bf44
commit e7cbeba140
2 changed files with 23 additions and 2 deletions
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19
src/pty.zig
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@@ -137,6 +137,25 @@ const PosixPty = struct {
/// This should be called prior to exec in the forked child process
/// in order to setup the tty properly.
pub fn childPreExec(self: Pty) !void {
// Reset our signals
var sa: posix.Sigaction = .{
.handler = .{ .handler = posix.SIG.DFL },
.mask = posix.empty_sigset,
.flags = 0,
};
try posix.sigaction(posix.SIG.ABRT, &sa, null);
try posix.sigaction(posix.SIG.ALRM, &sa, null);
try posix.sigaction(posix.SIG.BUS, &sa, null);
try posix.sigaction(posix.SIG.CHLD, &sa, null);
try posix.sigaction(posix.SIG.FPE, &sa, null);
try posix.sigaction(posix.SIG.HUP, &sa, null);
try posix.sigaction(posix.SIG.ILL, &sa, null);
try posix.sigaction(posix.SIG.INT, &sa, null);
try posix.sigaction(posix.SIG.SEGV, &sa, null);
try posix.sigaction(posix.SIG.TRAP, &sa, null);
try posix.sigaction(posix.SIG.TERM, &sa, null);
try posix.sigaction(posix.SIG.QUIT, &sa, null);
// Create a new process group
if (setsid() < 0) return error.ProcessGroupFailed;