2 files changed, 41 insertions, 10 deletions

diff --git a/src/common/file_util.cpp b/src/common/file_util.cpp
index 35eee0096..45b750e1e 100644
--- a/src/common/file_util.cpp
+++ b/src/common/file_util.cpp
@@ -888,7 +888,14 @@ std::string SanitizePath(std::string_view path_, DirectorySeparator directory_se
     }
 
     std::replace(path.begin(), path.end(), type1, type2);
-    path.erase(std::unique(path.begin(), path.end(),
+
+    auto start = path.begin();
+#ifdef _WIN32
+    // allow network paths which start with a double backslash (e.g. \\server\share)
+    if (start != path.end())
+        ++start;
+#endif
+    path.erase(std::unique(start, path.end(),
                            [type2](char c1, char c2) { return c1 == type2 && c2 == type2; }),
                path.end());
     return std::string(RemoveTrailingSlash(path));
@@ -967,6 +974,34 @@ bool IOFile::Flush() {
     return IsOpen() && 0 == std::fflush(m_file);
 }
 
+std::size_t IOFile::ReadImpl(void* data, std::size_t length, std::size_t data_size) const {
+    if (!IsOpen()) {
+        return std::numeric_limits<std::size_t>::max();
+    }
+
+    if (length == 0) {
+        return 0;
+    }
+
+    DEBUG_ASSERT(data != nullptr);
+
+    return std::fread(data, data_size, length, m_file);
+}
+
+std::size_t IOFile::WriteImpl(const void* data, std::size_t length, std::size_t data_size) {
+    if (!IsOpen()) {
+        return std::numeric_limits<std::size_t>::max();
+    }
+
+    if (length == 0) {
+        return 0;
+    }
+
+    DEBUG_ASSERT(data != nullptr);
+
+    return std::fwrite(data, data_size, length, m_file);
+}
+
 bool IOFile::Resize(u64 size) {
     return IsOpen() && 0 ==
 #ifdef _WIN32
diff --git a/src/common/file_util.h b/src/common/file_util.h
index cde7ddf2d..f7a0c33fa 100644
--- a/src/common/file_util.h
+++ b/src/common/file_util.h
@@ -222,22 +222,15 @@ public:
         static_assert(std::is_trivially_copyable_v<T>,
                       "Given array does not consist of trivially copyable objects");
 
-        if (!IsOpen()) {
-            return std::numeric_limits<std::size_t>::max();
-        }
-
-        return std::fread(data, sizeof(T), length, m_file);
+        return ReadImpl(data, length, sizeof(T));
     }
 
     template <typename T>
     std::size_t WriteArray(const T* data, std::size_t length) {
         static_assert(std::is_trivially_copyable_v<T>,
                       "Given array does not consist of trivially copyable objects");
-        if (!IsOpen()) {
-            return std::numeric_limits<std::size_t>::max();
-        }
 
-        return std::fwrite(data, sizeof(T), length, m_file);
+        return WriteImpl(data, length, sizeof(T));
     }
 
     template <typename T>
@@ -278,6 +271,9 @@ public:
     }
 
 private:
+    std::size_t ReadImpl(void* data, std::size_t length, std::size_t data_size) const;
+    std::size_t WriteImpl(const void* data, std::size_t length, std::size_t data_size);
+
     std::FILE* m_file = nullptr;
 };