helpers: make shm_open() portable after 8bcccf9 (#6471)

https://pubs.opengroup.org/onlinepubs/9699919799/functions/shm_open.html https://man.freebsd.org/shm_open/2 https://www.man7.org/linux/man-pages/man3/shm_open.3.html
hyprwm · Jun 13, 2024 · 4842eb8 · 4842eb8
1 parent e6d1053
commit 4842eb8
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/helpers/MiscFunctions.cpp b/src/helpers/MiscFunctions.cpp
@@ -814,7 +814,8 @@ bool envEnabled(const std::string& env) {
 }
 
 std::pair<int, std::string> openExclusiveShm() {
-    std::string name = g_pTokenManager->getRandomUUID();
+    // Only absolute paths can be shared across different shm_open() calls
+    std::string name = "/" + g_pTokenManager->getRandomUUID();
 
     for (size_t i = 0; i < 69; ++i) {
         int fd = shm_open(name.c_str(), O_RDWR | O_CREAT | O_EXCL, 0600);