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65878a |
From 5a69011a7d265ec42562fdfdb99d886570a49d7a Mon Sep 17 00:00:00 2001
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65878a |
From: Lennart Poettering <lennart@poettering.net>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
Date: Wed, 6 Nov 2013 02:05:06 +0100
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65878a |
Subject: [PATCH] nspawn: explicitly terminate machines when we exit nspawn
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65878a |
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65878a |
https://bugs.freedesktop.org/show_bug.cgi?id=68370
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
https://bugzilla.redhat.com/show_bug.cgi?id=988883
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65878a |
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65878a |
Conflicts:
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
src/nspawn/nspawn.c
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65878a |
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65878a |
Conflicts:
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
src/nspawn/nspawn.c
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65878a |
---
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65878a |
src/nspawn/nspawn.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++----
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65878a |
1 file changed, 64 insertions(+), 4 deletions(-)
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65878a |
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65878a |
diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
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65878a |
index 4bc49a3..f326f99 100644
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65878a |
--- a/src/nspawn/nspawn.c
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65878a |
+++ b/src/nspawn/nspawn.c
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65878a |
@@ -43,9 +43,9 @@
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65878a |
#include <sys/socket.h>
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65878a |
#include <linux/netlink.h>
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65878a |
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65878a |
-#include <systemd/sd-daemon.h>
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65878a |
-#include <systemd/sd-bus.h>
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65878a |
-
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65878a |
+#include "sd-daemon.h"
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65878a |
+#include "sd-bus.h"
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65878a |
+#include "sd-id128.h"
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65878a |
#include "log.h"
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65878a |
#include "util.h"
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65878a |
#include "mkdir.h"
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65878a |
@@ -56,13 +56,13 @@
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65878a |
#include "strv.h"
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65878a |
#include "path-util.h"
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65878a |
#include "loopback-setup.h"
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65878a |
-#include "sd-id128.h"
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65878a |
#include "dev-setup.h"
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65878a |
#include "fdset.h"
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65878a |
#include "build.h"
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65878a |
#include "fileio.h"
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65878a |
#include "bus-internal.h"
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65878a |
#include "bus-message.h"
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65878a |
+#include "bus-error.h"
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65878a |
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65878a |
#ifndef TTY_GID
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65878a |
#define TTY_GID 5
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65878a |
@@ -1229,6 +1229,60 @@ static int register_machine(void) {
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65878a |
return 0;
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65878a |
}
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65878a |
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65878a |
+static int terminate_machine(pid_t pid) {
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65878a |
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
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65878a |
+ _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
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65878a |
+ _cleanup_bus_unref_ sd_bus *bus = NULL;
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65878a |
+ const char *path;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ int r;
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65878a |
+
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65878a |
+ r = sd_bus_open_system(&bus;;
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65878a |
+ if (r < 0) {
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65878a |
+ log_error("Failed to open system bus: %s", strerror(-r));
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65878a |
+ return r;
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65878a |
+ }
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65878a |
+
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65878a |
+ r = sd_bus_call_method(
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65878a |
+ bus,
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ "org.freedesktop.machine1",
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ "/org/freedesktop/machine1",
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65878a |
+ "org.freedesktop.machine1.Manager",
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65878a |
+ "GetMachineByPID",
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65878a |
+ &error,
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65878a |
+ &reply,
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ "u",
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ (uint32_t) pid);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ if (r < 0) {
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65878a |
+ /* Note that the machine might already have been
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65878a |
+ * cleaned up automatically, hence don't consider it a
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65878a |
+ * failure if we cannot get the machine object. */
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65878a |
+ log_debug("Failed to get machine: %s", bus_error_message(&error, r));
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65878a |
+ return 0;
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65878a |
+ }
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+
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65878a |
+ r = sd_bus_message_read(reply, "o", &path);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ if (r < 0) {
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ log_error("Failed to parse GetMachineByPID() reply: %s", bus_error_message(&error, r));
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ return r;
|
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ }
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ r = sd_bus_call_method(
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ bus,
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|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ "org.freedesktop.machine1",
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ path,
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ "org.freedesktop.machine1.Machine",
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ "Terminate",
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ &error,
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ NULL,
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ NULL);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ if (r < 0) {
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ log_debug("Failed to terminate machine: %s", bus_error_message(&error, r));
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ return 0;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ }
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ return 0;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+}
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
static bool audit_enabled(void) {
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
int fd;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
|
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
@@ -1704,6 +1758,12 @@ int main(int argc, char *argv[]) {
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
if (saved_attr_valid)
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
tcsetattr(STDIN_FILENO, TCSANOW, &saved_attr);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
|
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ /* Kill if it is not dead yet anyway */
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ terminate_machine(pid);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ /* Redundant, but better safe than sorry */
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+ kill(pid, SIGKILL);
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|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
+
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
k = wait_for_terminate(pid, &status);
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|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
if (k < 0) {
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
65878a |
r = EXIT_FAILURE;
|