CUDA Backend: Give detailed warning if either the NVIDIA CUDA or the NVIDIA RTC library cannot be initialized

CUDA Backend: Do not warn about missing CUDA SDK installation if --backend-ignore-cuda is used

docs/changes.txt

@@ -27,6 +27,8 @@
 ##
 
 - Apple Keychain: Notify the user about the risk of collisions / false positives
+- CUDA Backend: Give detailed warning if either the NVIDIA CUDA or the NVIDIA RTC library cannot be initialized
+- CUDA Backend: Do not warn about missing CUDA SDK installation if --backend-ignore-cuda is used
 - CUDA Backend: Use blocking events to avoid 100% CPU core usage (per GPU)
 - Startup time: Improved the startup time by avoiding some time intensive operations for skipped devices
 

src/backend.c

@@ -4929,6 +4929,9 @@ int backend_ctx_init (hashcat_ctx_t *hashcat_ctx)
 
     if (rc_cuda_init == -1)
     {
+      event_log_warning (hashcat_ctx, "Failed to initialize NVIDIA CUDA library.");
+      event_log_warning (hashcat_ctx, NULL);
+
       cuda_close (hashcat_ctx);
     }
 
@@ -4944,6 +4947,9 @@ int backend_ctx_init (hashcat_ctx_t *hashcat_ctx)
 
     if (rc_nvrtc_init == -1)
     {
+      event_log_warning (hashcat_ctx, "Failed to initialize NVIDIA RTC library.");
+      event_log_warning (hashcat_ctx, NULL);
+
       nvrtc_close (hashcat_ctx);
     }
 
@@ -6240,11 +6246,14 @@ int backend_ctx_devices_init (hashcat_ctx_t *hashcat_ctx, const int comptime)
 
             if ((backend_ctx->cuda == NULL) || (backend_ctx->nvrtc == NULL))
             {
-              event_log_warning (hashcat_ctx, "* Device #%u: CUDA SDK Toolkit installation NOT detected.", device_id + 1);
-              event_log_warning (hashcat_ctx, "             CUDA SDK Toolkit installation required for proper device support and utilization");
-              event_log_warning (hashcat_ctx, "             Falling back to OpenCL Runtime");
+              if (user_options->backend_ignore_cuda == false)
+              {
+                event_log_warning (hashcat_ctx, "* Device #%u: CUDA SDK Toolkit installation NOT detected.", device_id + 1);
+                event_log_warning (hashcat_ctx, "             CUDA SDK Toolkit installation required for proper device support and utilization");
+                event_log_warning (hashcat_ctx, "             Falling back to OpenCL Runtime");
 
-              event_log_warning (hashcat_ctx, NULL);
+                event_log_warning (hashcat_ctx, NULL);
+              }
             }
           }
         }