Files
orca/config/patches/node-pty@1.1.0.patch
T
Neil a102bc8427 fix(pty): delete the reply-withholding scheduler
Orca answered a terminal query by withholding the write until a probe
proved the slave's ECHO bit was clear. That was the wrong mechanism, and
it is now gone: replies are written in the caller's turn and their echo
is contained on the output side, where it always was.

Withholding never removed an echo. The wait was bounded and always ended
in a write, so the output-side projections were doing the work the whole
time — including the readline rewrite, which happens with the tty already
raw and which therefore no reading of the ECHO bit can predict. What
withholding did add was an asynchronous write path, and that is what let
one reply overtake another and land in the next program's stdin (#15559),
what produced a re-entrancy inversion inside its own flush, and what four
rounds of regressions have lived in.

The last thing it covered was the verbatim echo of a `stty -echoctl` tty.
That shape is now projected directly. It starts with ESC, so it is
matched only when complete and never held as a partial: holding it would
take a bare trailing ESC from the query parser and an expired hold would
release it raw, so a query torn at its own ESC would never be answered.
Complete-match-only is what makes the shape safe to project at all.

Measured on a real pty: a cooked-mode master write is both echoed AND
delivered — ECHO copies the bytes without consuming them from the slave's
input queue, so a program arming raw mode with TCSANOW/TCSADRAIN (libuv's
setRawMode, hence every Node agent) still reads them. Only a TCSAFLUSH
switcher discards it, which it does on every terminal, none of which
gates a reply on termios state.

Deletes the pending-write queue, the async stty probe, the poll budget
and probe rate limit, the deadline-driven flush, and the answer/
answerInOrder split. Replies now leave in call order by construction.
No packaging, native or CI surface is touched.
2026-08-20 00:46:08 -07:00

432 lines
14 KiB
Diff

diff --git a/binding.gyp b/binding.gyp
index 5f63978b07ab50aaf7523219a2170ec737a6b5db..bbd9e06136e8922f40b5779e35d4fc835f1479ab 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -5,9 +5,6 @@
],
'conditions': [
['OS=="win"', {
- 'msvs_configuration_attributes': {
- 'SpectreMitigation': 'Spectre'
- },
'msvs_settings': {
'VCCLCompilerTool': {
'AdditionalOptions': [
@@ -88,6 +85,16 @@
'libraries!': [
'-lutil'
]
+ }],
+ # Orca: pair with the .symver pins in pty.cc. Force the real
+ # libutil.so.1/libpthread.so.0 into DT_NEEDED (gcc's default
+ # --as-needed drops them because the pinned symbols resolve from
+ # libc's compat aliases at build time) so openpty/forkpty/
+ # pthread_sigmask still resolve on Ubuntu 20.04 (glibc 2.31).
+ ['OS=="linux"', {
+ 'ldflags': [
+ '-Wl,--no-as-needed,-l:libutil.so.1,-l:libpthread.so.0,--as-needed'
+ ]
}]
]
}
diff --git a/deps/winpty/src/winpty.gyp b/deps/winpty/src/winpty.gyp
index 1ac5758bedd8cf54f32280dea4e4aeb5afdee30d..e619813759c6f14694838bdfbd0ea5f8360130ef 100644
--- a/deps/winpty/src/winpty.gyp
+++ b/deps/winpty/src/winpty.gyp
@@ -10,7 +10,7 @@
# make -j4 CXX=i686-w64-mingw32-g++ LDFLAGS="-static -static-libgcc -static-libstdc++"
'variables': {
- 'WINPTY_COMMIT_HASH%': '<!(cmd /c "cd shared && GetCommitHash.bat")',
+ 'WINPTY_COMMIT_HASH%': '<!(cmd /c "cd shared && .\\GetCommitHash.bat")',
},
'target_defaults' : {
'defines' : [
@@ -22,7 +22,7 @@
'include_dirs': [
# Add the 'src/gen' directory to the include path and force gyp to
# run the script (re)generating the version header.
- '<!(cmd /c "cd shared && UpdateGenVersion.bat <(WINPTY_COMMIT_HASH)")',
+ '<!(cmd /c "cd shared && .\\UpdateGenVersion.bat <(WINPTY_COMMIT_HASH)")',
]
},
'targets' : [
@@ -40,9 +40,6 @@
'-lshell32',
'-luser32',
],
- 'msvs_configuration_attributes': {
- 'SpectreMitigation': 'Spectre'
- },
'msvs_settings': {
# Specify this setting here to override a setting from somewhere
# else, such as node's common.gypi.
@@ -142,9 +139,6 @@
'-ladvapi32',
'-luser32',
],
- 'msvs_configuration_attributes': {
- 'SpectreMitigation': 'Spectre'
- },
'msvs_settings': {
# Specify this setting here to override a setting from somewhere
# else, such as node's common.gypi.
diff --git a/lib/conpty_console_list_agent.js b/lib/conpty_console_list_agent.js
index 8c4fca9022a6d6f015bca87f61625cde2278f428..0a01730616488119aa21ef441cf3c441e02a974c 100644
--- a/lib/conpty_console_list_agent.js
+++ b/lib/conpty_console_list_agent.js
@@ -10,7 +10,14 @@ Object.defineProperty(exports, "__esModule", { value: true });
var utils_1 = require("./utils");
var getConsoleProcessList = utils_1.loadNativeModule('conpty_console_list').module.getConsoleProcessList;
var shellPid = parseInt(process.argv[2], 10);
-var consoleProcessList = getConsoleProcessList(shellPid);
+var consoleProcessList;
+try {
+ consoleProcessList = getConsoleProcessList(shellPid);
+}
+catch (_a) {
+ // Why: AttachConsole can fail after the shell exits; parent already has this fallback.
+ consoleProcessList = [shellPid];
+}
process.send({ consoleProcessList: consoleProcessList });
process.exit(0);
//# sourceMappingURL=conpty_console_list_agent.js.map
\ No newline at end of file
diff --git a/lib/unixTerminal.js b/lib/unixTerminal.js
index 1ec12f796a822c78fba9ad7f6448c3987e325c23..cec8b67aef02f8199e5606a0d257088bf1865877 100644
--- a/lib/unixTerminal.js
+++ b/lib/unixTerminal.js
@@ -28,8 +28,12 @@ var native = utils_1.loadNativeModule('pty');
var pty = native.module;
var helperPath = native.dir + '/spawn-helper';
helperPath = path.resolve(__dirname, helperPath);
-helperPath = helperPath.replace('app.asar', 'app.asar.unpacked');
-helperPath = helperPath.replace('node_modules.asar', 'node_modules.asar.unpacked');
+if (!helperPath.includes('app.asar.unpacked')) {
+ helperPath = helperPath.replace('app.asar', 'app.asar.unpacked');
+}
+if (!helperPath.includes('node_modules.asar.unpacked')) {
+ helperPath = helperPath.replace('node_modules.asar', 'node_modules.asar.unpacked');
+}
var DEFAULT_FILE = 'sh';
var DEFAULT_NAME = 'xterm';
var DESTROY_SOCKET_TIMEOUT_MS = 200;
diff --git a/src/conpty_console_list_agent.ts b/src/conpty_console_list_agent.ts
index 181ccabbbe9c4948a9725fb1db907a68e9de01fc..67f31facf85562b67adbfbd04ce28ddd8eeb4a79 100644
--- a/src/conpty_console_list_agent.ts
+++ b/src/conpty_console_list_agent.ts
@@ -10,6 +10,12 @@ import { loadNativeModule } from './utils';
const getConsoleProcessList = loadNativeModule('conpty_console_list').module.getConsoleProcessList;
const shellPid = parseInt(process.argv[2], 10);
-const consoleProcessList = getConsoleProcessList(shellPid);
+let consoleProcessList: number[];
+try {
+ consoleProcessList = getConsoleProcessList(shellPid);
+} catch {
+ // Why: AttachConsole can fail after the shell exits; parent already has this fallback.
+ consoleProcessList = [shellPid];
+}
process.send!({ consoleProcessList });
process.exit(0);
diff --git a/src/unix/pty.cc b/src/unix/pty.cc
index 7b4b9e1f990fbf95b51528bb56dc9717f5b87532..383df0c9c48355547c65e6c9bbba593d15c4dd44 100644
--- a/src/unix/pty.cc
+++ b/src/unix/pty.cc
@@ -23,7 +23,9 @@
#include <errno.h>
#include <string.h>
#include <stdlib.h>
+#include <stdio.h>
#include <unistd.h>
+#include <string>
#include <thread>
#include <sys/types.h>
@@ -47,6 +49,25 @@
#include <termios.h>
#endif
+/* Orca: glibc 2.32-2.34 relocated pthread_sigmask/openpty/forkpty into libc
+ * under new symbol versions, so building on a newer glibc produces references
+ * (GLIBC_2.32/2.34) absent on Ubuntu 20.04 (glibc 2.31) and the app fails to
+ * launch. Pin these to the pre-merge version glibc still ships as a compat
+ * alias; the binding.gyp ldflags force libutil/libpthread into DT_NEEDED so
+ * those aliases are actually loaded on the target. */
+#if defined(__linux__)
+# if defined(__x86_64__)
+# define ORCA_GLIBC_COMPAT_VERSION "GLIBC_2.2.5"
+# elif defined(__aarch64__)
+# define ORCA_GLIBC_COMPAT_VERSION "GLIBC_2.17"
+# endif
+# ifdef ORCA_GLIBC_COMPAT_VERSION
+__asm__(".symver openpty,openpty@" ORCA_GLIBC_COMPAT_VERSION);
+__asm__(".symver forkpty,forkpty@" ORCA_GLIBC_COMPAT_VERSION);
+__asm__(".symver pthread_sigmask,pthread_sigmask@" ORCA_GLIBC_COMPAT_VERSION);
+# endif
+#endif
+
/* Some platforms name VWERASE and VDISCARD differently */
#if !defined(VWERASE) && defined(VWERSE)
#define VWERASE VWERSE
@@ -237,13 +258,23 @@ pty_getproc(int, char *);
#endif
#if defined(__APPLE__) || defined(__OpenBSD__)
+struct pty_spawn_error {
+ const char* step;
+ int errnum;
+ std::string detail_name;
+ std::string detail_value;
+};
+
+static std::string
+pty_format_spawn_error(const pty_spawn_error&);
+
static void
pty_posix_spawn(char** argv, char** env,
const struct termios *termp,
const struct winsize *winp,
int* master,
pid_t* pid,
- int* err);
+ pty_spawn_error* err);
#endif
struct DelBuf {
@@ -367,10 +398,11 @@ Napi::Value PtyFork(const Napi::CallbackInfo& info) {
argv[i + 3] = strdup(arg.c_str());
}
- int err = -1;
- pty_posix_spawn(argv, env, term, &winp, &master, &pid, &err);
- if (err != 0) {
- throw Napi::Error::New(napiEnv, "posix_spawnp failed.");
+ pty_spawn_error spawn_error = { NULL, 0, "", "" };
+ pty_posix_spawn(argv, env, term, &winp, &master, &pid, &spawn_error);
+ if (spawn_error.errnum != 0) {
+ std::string spawn_message = pty_format_spawn_error(spawn_error);
+ throw Napi::Error::New(napiEnv, spawn_message);
}
if (pty_nonblock(master) == -1) {
throw Napi::Error::New(napiEnv, "Could not set master fd to nonblocking.");
@@ -684,15 +716,73 @@ pty_getproc(int fd, char *tty) {
#endif
#if defined(__APPLE__)
+static const char*
+pty_errno_name(int errnum) {
+ switch (errnum) {
+ case E2BIG: return "E2BIG";
+ case EACCES: return "EACCES";
+ case EAGAIN: return "EAGAIN";
+ case EMFILE: return "EMFILE";
+ case ENFILE: return "ENFILE";
+ case ENOENT: return "ENOENT";
+ case ENOMEM: return "ENOMEM";
+ default: return "errno";
+ }
+}
+
+static void
+pty_set_spawn_error(pty_spawn_error* err,
+ const char* step,
+ int errnum,
+ const char* detail_name = NULL,
+ const char* detail_value = NULL) {
+ err->step = step;
+ err->errnum = errnum;
+ err->detail_name = detail_name ? detail_name : "";
+ err->detail_value = detail_value ? detail_value : "";
+}
+
+static std::string
+pty_format_spawn_error(const pty_spawn_error& err) {
+ char errno_buf[64];
+ snprintf(errno_buf, sizeof(errno_buf), "%d", err.errnum);
+
+ std::string message = "node-pty: ";
+ message += err.step ? err.step : "unknown";
+ message += " failed: ";
+ message += pty_errno_name(err.errnum);
+ message += " (errno ";
+ message += errno_buf;
+ message += ", ";
+ message += strerror(err.errnum);
+ message += ")";
+
+ if (!err.detail_name.empty()) {
+ message += " - ";
+ message += err.detail_name;
+ message += "='";
+ message += err.detail_value;
+ message += "'";
+ }
+
+ return message;
+}
+
static void
pty_posix_spawn(char** argv, char** env,
const struct termios *termp,
const struct winsize *winp,
int* master,
pid_t* pid,
- int* err) {
- int low_fds[3];
+ pty_spawn_error* err) {
+ int low_fds[3] = {-1, -1, -1};
size_t count = 0;
+ int res = -1;
+ int slave = -1;
+ posix_spawn_file_actions_t acts;
+ bool acts_initialized = false;
+ posix_spawnattr_t attrs;
+ bool attrs_initialized = false;
for (; count < 3; count++) {
low_fds[count] = posix_openpt(O_RDWR);
@@ -706,80 +796,118 @@ pty_posix_spawn(char** argv, char** env,
POSIX_SPAWN_SETSID;
*master = posix_openpt(O_RDWR);
if (*master == -1) {
- return;
+ pty_set_spawn_error(err, "posix_openpt", errno);
+ goto done;
}
- int res = grantpt(*master) || unlockpt(*master);
+ res = grantpt(*master);
if (res == -1) {
- return;
+ pty_set_spawn_error(err, "grantpt", errno);
+ goto done;
+ }
+
+ res = unlockpt(*master);
+ if (res == -1) {
+ pty_set_spawn_error(err, "unlockpt", errno);
+ goto done;
}
// Use TIOCPTYGNAME instead of ptsname() to avoid threading problems.
- int slave;
char slave_pty_name[128];
res = ioctl(*master, TIOCPTYGNAME, slave_pty_name);
if (res == -1) {
- return;
+ pty_set_spawn_error(err, "ioctl_TIOCPTYGNAME", errno);
+ goto done;
}
slave = open(slave_pty_name, O_RDWR | O_NOCTTY);
if (slave == -1) {
- return;
+ pty_set_spawn_error(err, "open_slave", errno, "slave", slave_pty_name);
+ goto done;
}
if (termp) {
res = tcsetattr(slave, TCSANOW, termp);
if (res == -1) {
- return;
+ pty_set_spawn_error(err, "tcsetattr", errno, "slave", slave_pty_name);
+ goto done;
};
}
if (winp) {
res = ioctl(slave, TIOCSWINSZ, winp);
if (res == -1) {
- return;
+ pty_set_spawn_error(err, "ioctl_TIOCSWINSZ", errno, "slave", slave_pty_name);
+ goto done;
}
}
- posix_spawn_file_actions_t acts;
- posix_spawn_file_actions_init(&acts);
+ res = posix_spawn_file_actions_init(&acts);
+ if (res != 0) {
+ pty_set_spawn_error(err, "posix_spawn_file_actions_init", res);
+ goto done;
+ }
+ acts_initialized = true;
posix_spawn_file_actions_adddup2(&acts, slave, STDIN_FILENO);
posix_spawn_file_actions_adddup2(&acts, slave, STDOUT_FILENO);
posix_spawn_file_actions_adddup2(&acts, slave, STDERR_FILENO);
posix_spawn_file_actions_addclose(&acts, slave);
posix_spawn_file_actions_addclose(&acts, *master);
- posix_spawnattr_t attrs;
- posix_spawnattr_init(&attrs);
- *err = posix_spawnattr_setflags(&attrs, flags);
- if (*err != 0) {
+ res = posix_spawnattr_init(&attrs);
+ if (res != 0) {
+ pty_set_spawn_error(err, "posix_spawnattr_init", res);
+ goto done;
+ }
+ attrs_initialized = true;
+ res = posix_spawnattr_setflags(&attrs, flags);
+ if (res != 0) {
+ pty_set_spawn_error(err, "posix_spawnattr_setflags", res);
goto done;
}
sigset_t signal_set;
/* Reset all signal the child to their default behavior */
sigfillset(&signal_set);
- *err = posix_spawnattr_setsigdefault(&attrs, &signal_set);
- if (*err != 0) {
+ res = posix_spawnattr_setsigdefault(&attrs, &signal_set);
+ if (res != 0) {
+ pty_set_spawn_error(err, "posix_spawnattr_setsigdefault", res);
goto done;
}
/* Reset the signal mask for all signals */
sigemptyset(&signal_set);
- *err = posix_spawnattr_setsigmask(&attrs, &signal_set);
- if (*err != 0) {
+ res = posix_spawnattr_setsigmask(&attrs, &signal_set);
+ if (res != 0) {
+ pty_set_spawn_error(err, "posix_spawnattr_setsigmask", res);
goto done;
}
do
- *err = posix_spawn(pid, argv[0], &acts, &attrs, argv, env);
- while (*err == EINTR);
+ res = posix_spawn(pid, argv[0], &acts, &attrs, argv, env);
+ while (res == EINTR);
+ if (res != 0) {
+ pty_set_spawn_error(err, "posix_spawn", res, "helper", argv[0]);
+ }
done:
- posix_spawn_file_actions_destroy(&acts);
- posix_spawnattr_destroy(&attrs);
+ if (acts_initialized) {
+ posix_spawn_file_actions_destroy(&acts);
+ }
+ if (attrs_initialized) {
+ posix_spawnattr_destroy(&attrs);
+ }
+ if (slave != -1) {
+ close(slave);
+ }
+ if (err->errnum != 0 && *master != -1) {
+ close(*master);
+ *master = -1;
+ }
- for (; count > 0; count--) {
- close(low_fds[count]);
+ for (size_t i = 0; i <= count && i < 3; i++) {
+ if (low_fds[i] != -1) {
+ close(low_fds[i]);
+ }
}
}
#endif