use stat

aws · Feb 18, 2025 · aee3147 · aee3147
1 parent 06cc975
commit aee3147
Showing 1 changed file with 9 additions and 5 deletions.
diff --git a/crypto/fipsmodule/rand/snapsafe_detect.c b/crypto/fipsmodule/rand/snapsafe_detect.c
@@ -9,6 +9,7 @@
 #include <fcntl.h>
 #include <stdlib.h>
 #include <sys/mman.h>
+#include <sys/stat.h>
 #include <unistd.h>
 #include "../delocate.h"
 
@@ -23,13 +24,16 @@ DEFINE_BSS_GET(int, snapsafety_state)
 
 static void do_aws_snapsafe_init(void) {
   *sgc_addr_bss_get() = NULL;
-  *snapsafety_state_bss_get() = SNAPSAFETY_STATE_FAILED_INITIALISE;
+  *snapsafety_state_bss_get() = SNAPSAFETY_STATE_NOT_SUPPORTED;
+
+  struct stat buff;
+  if (stat(CRYPTO_get_sysgenid_path(), &buff) != 0) {
+    return;
+  }
 
+  *snapsafety_state_bss_get() = SNAPSAFETY_STATE_FAILED_INITIALISE;
   int fd_sgc = open(CRYPTO_get_sysgenid_path(), O_RDONLY);
-  if (fd_sgc == -1) {
-    if (errno == ENOENT) {
-      *snapsafety_state_bss_get() = SNAPSAFETY_STATE_NOT_SUPPORTED;
-    }
+  if (fd_sgc != 0) {
     return;
   }