Fixes: NB#220076 - applauncherd.bin does not work without link to /tmp/m.themedaemon

Details: TMPDIR is hardcoded to /var/tmp, if it's not set already

Revby: Jussi Lind

README

@@ -328,7 +328,7 @@ This functionality is implemented in a position-independent executable called
 single-instance. Applauncherd uses this executable as a library, but it can be
 used as an ordinary program to start anything as a single instance:
 
-  /usr/bun/single-instance <application_name>
+  /usr/bin/single-instance <application_name>
 
 Note, that in this case the launcher is not used.
 

debian/changelog

@@ -1,6 +1,10 @@
 applauncherd (0.17.0) unstable; urgency=low
 
   * Fixes: NB#212024 - Application launcher should be usable (improve performance) also at boot
+  * Fixes: NB#220076 - applauncherd.bin does not work without link to /tmp/m.themedaemon
+  * Changes: support for --boot-mode in applauncherd.bin
+  * Changes: support for --help in applauncherd.bin
+  * Changes: support for --single-instance in invoker
   * Changes: --debug argument problem fixed in preloading
   * Changes: Corrected error on test-perf-mbooster.py
   * Changes: Commented out the single-instance test case skeletons

src/launcher/launcher.c

@@ -136,6 +136,12 @@ int main(int argc, char ** argv)
             helpWanted = 1;
     }
 
+    // Set environment. Because applauncherd is usually a privileged
+    // process, TMPDIR variable might be unset by the C library. In
+    // case it's not set, we set it to /var/tmp, which usually is not
+    // a RAM disk.
+    setenv("TMPDIR", "/var/tmp", 0);
+
     // Preload libraries
     if (!helpWanted)
         loadLibraries(gLibs, sizeof(gLibs) / sizeof(char *));