OpenCL Runtime: Workaround ROCm OpenCL driver problem trying to write temporary file into readonly folder by setting TMPDIR environment variable

src/hashcat.c

@@ -1108,7 +1108,7 @@ int hashcat_session_init (hashcat_ctx_t *hashcat_ctx, const char *install_folder
    * To help users a bit
    */
 
-  setup_environment_variables ();
+  setup_environment_variables (hashcat_ctx->folder_config);
 
   setup_umask ();
 

src/shared.c

@@ -7,6 +7,7 @@
 #include "types.h"
 #include "convert.h"
 #include "shared.h"
+#include "memory.h"
 
 #if defined (__CYGWIN__)
 #include <sys/cygwin.h>
@@ -467,7 +468,7 @@ bool hc_string_is_digit (const char *s)
   return true;
 }
 
-void setup_environment_variables ()
+void setup_environment_variables (const folder_config_t *folder_config)
 {
   char *compute = getenv ("COMPUTE");
 
@@ -498,6 +499,17 @@ void setup_environment_variables ()
     putenv ((char *) "POCL_KERNEL_CACHE=0");
   */
 
+  if (getenv ("TMPDIR") == NULL)
+  {
+    char *tmpdir = NULL;
+
+    hc_asprintf (&tmpdir, "TMPDIR=%s", folder_config->profile_dir);
+
+    putenv (tmpdir);
+
+    // we can't free tmpdir at this point!
+  }
+
   if (getenv ("CL_CONFIG_USE_VECTORIZER") == NULL)
     putenv ((char *) "CL_CONFIG_USE_VECTORIZER=False");