1 files changed, 49 insertions, 4 deletions
diff --git a/cpukit/libcsupport/src/sup_fs_check_permissions.c b/cpukit/libcsupport/src/sup_fs_check_permissions.c
index 8dcecb6119..85d237cce6 100644
--- a/cpukit/libcsupport/src/sup_fs_check_permissions.c
+++ b/cpukit/libcsupport/src/sup_fs_check_permissions.c
@@ -16,8 +16,53 @@
   #include "config.h"
 #endif
 
+#include <sys/stat.h>
+
 #include <rtems/libio_.h>
 
+#define RTEMS_FS_USR_SHIFT 6
+#define RTEMS_FS_GRP_SHIFT 3
+#define RTEMS_FS_OTH_SHIFT 0
+
+RTEMS_STATIC_ASSERT(
+  (RTEMS_FS_PERMS_READ << RTEMS_FS_USR_SHIFT) == S_IRUSR,
+  S_IRUSR
+);
+RTEMS_STATIC_ASSERT(
+  (RTEMS_FS_PERMS_READ << RTEMS_FS_GRP_SHIFT) == S_IRGRP,
+  S_IRGRP
+);
+RTEMS_STATIC_ASSERT(
+  (RTEMS_FS_PERMS_READ << RTEMS_FS_OTH_SHIFT) == S_IROTH,
+  S_IROTH
+);
+
+RTEMS_STATIC_ASSERT(
+  (RTEMS_FS_PERMS_WRITE << RTEMS_FS_USR_SHIFT) == S_IWUSR,
+  S_IWUSR
+);
+RTEMS_STATIC_ASSERT(
+  (RTEMS_FS_PERMS_WRITE << RTEMS_FS_GRP_SHIFT) == S_IWGRP,
+  S_IWGRP
+);
+RTEMS_STATIC_ASSERT(
+  (RTEMS_FS_PERMS_WRITE << RTEMS_FS_OTH_SHIFT) == S_IWOTH,
+  S_IWOTH
+);
+
+RTEMS_STATIC_ASSERT(
+  (RTEMS_FS_PERMS_EXEC << RTEMS_FS_USR_SHIFT) == S_IXUSR,
+  S_IXUSR
+);
+RTEMS_STATIC_ASSERT(
+  (RTEMS_FS_PERMS_EXEC << RTEMS_FS_GRP_SHIFT) == S_IXGRP,
+  S_IXGRP
+);
+RTEMS_STATIC_ASSERT(
+  (RTEMS_FS_PERMS_EXEC << RTEMS_FS_OTH_SHIFT) == S_IXOTH,
+  S_IXOTH
+);
+
 bool rtems_filesystem_check_access(
   int eval_flags,
   mode_t node_mode,
@@ -25,18 +70,18 @@ bool rtems_filesystem_check_access(
   gid_t node_gid
 )
 {
-  mode_t perm_flags = eval_flags & RTEMS_LIBIO_PERMS_RWX;
+  mode_t perm_flags = eval_flags & RTEMS_FS_PERMS_RWX;
   uid_t task_uid = geteuid();
 
   if (task_uid == 0 || task_uid == node_uid) {
-    perm_flags <<= 6;
+    perm_flags <<= RTEMS_FS_USR_SHIFT;
   } else {
     gid_t task_gid = getegid();
 
     if (task_gid == 0 || task_gid == node_gid) {
-      perm_flags <<= 3;
+      perm_flags <<= RTEMS_FS_GRP_SHIFT;
     } else {
-      perm_flags <<= 0;
+      perm_flags <<= RTEMS_FS_OTH_SHIFT;
     }
   }