internal: redirect exec'd app output to /dev/null (#9411)

1 files changed, 8 insertions, 0 deletions

diff --git a/src/managers/KeybindManager.cpp b/src/managers/KeybindManager.cpp
index 8daa6838..4bfd1454 100644
--- a/src/managers/KeybindManager.cpp
+++ b/src/managers/KeybindManager.cpp
@@ -967,6 +967,14 @@ uint64_t CKeybindManager::spawnRawProc(std::string args, PHLWORKSPACE pInitialWo
                 setenv(e.first.c_str(), e.second.c_str(), 1);
             }
             setenv("WAYLAND_DISPLAY", g_pCompositor->m_szWLDisplaySocket.c_str(), 1);
+
+            int devnull = open("/dev/null", O_WRONLY | O_CLOEXEC);
+            if (devnull != -1) {
+                dup2(devnull, STDOUT_FILENO);
+                dup2(devnull, STDERR_FILENO);
+                close(devnull);
+            }
+
             execl("/bin/sh", "/bin/sh", "-c", args.c_str(), nullptr);
             // exit grandchild
             _exit(0);