fs: fix stdio dir count not filtering types. game/bfsar: fix dir listing loop exiting early due to post increment in the loop.

sphaira/source/fs.cpp

@@ -688,6 +688,20 @@ Result Dir::GetEntryCount(s64* out) {
             if (!std::strcmp(d->d_name, ".") || !std::strcmp(d->d_name, "..")) {
                 continue;
             }
+
+            if (d->d_type == DT_DIR) {
+                if (!(m_mode & FsDirOpenMode_ReadDirs)) {
+                    continue;
+                }
+            } else if (d->d_type == DT_REG) {
+                if (!(m_mode & FsDirOpenMode_ReadFiles)) {
+                    continue;
+                }
+            } else {
+                log_write("[FS] WARNING: unknown type when counting dir: %u\n", d->d_type);
+                continue;
+            }
+
             (*out)++;
         }
 

sphaira/source/utils/devoptab_bfsar.cpp

@@ -215,7 +215,7 @@ int Device::devoptab_dirnext(void* fd, char *filename, struct stat *filestat) {
         filestat->st_mode = S_IFREG | S_IRUSR | S_IRGRP | S_IROTH;
         dir->index++;
         break;
-    } while (dir->index++);
+    } while (++dir->index);
 
     return 0;
 }

sphaira/source/utils/devoptab_game.cpp

@@ -425,7 +425,7 @@ int Device::devoptab_dirnext(void* fd, char *filename, struct stat *filestat) {
             std::snprintf(filename, NAME_MAX, "%s", content.nsp->path.s);
             dir->index++;
             break;
-        } while (dir->index++);
+        } while (++dir->index);
     }
 
     return 0;