From 7353cfc7813c960e7fdb0b33829865c606f98c84 Mon Sep 17 00:00:00 2001 From: Lioncash Date: Wed, 8 Aug 2018 17:49:57 -0400 Subject: [PATCH] fsp_srv: Use std::string_view's copy() function instead of strncpy() Given elements inserted into a vector are zeroed out, we can just copy MAX_LEN - 1 elements and the data will already be properly null terminated. --- src/core/file_sys/directory.h | 12 +++++++++--- src/core/hle/service/filesystem/fsp_srv.cpp | 6 +----- 2 files changed, 10 insertions(+), 8 deletions(-) diff --git a/src/core/file_sys/directory.h b/src/core/file_sys/directory.h index 213ce1826..3759e743a 100644 --- a/src/core/file_sys/directory.h +++ b/src/core/file_sys/directory.h @@ -4,8 +4,9 @@ #pragma once -#include #include +#include +#include #include "common/common_funcs.h" #include "common/common_types.h" @@ -21,9 +22,14 @@ enum EntryType : u8 { // Structure of a directory entry, from // http://switchbrew.org/index.php?title=Filesystem_services#DirectoryEntry -const size_t FILENAME_LENGTH = 0x300; struct Entry { - char filename[FILENAME_LENGTH]; + Entry(std::string_view view, EntryType entry_type, u64 entry_size) + : type{entry_type}, file_size{entry_size} { + const size_t copy_size = view.copy(filename, std::size(filename) - 1); + filename[copy_size] = '\0'; + } + + char filename[0x300]; INSERT_PADDING_BYTES(4); EntryType type; INSERT_PADDING_BYTES(3); diff --git a/src/core/hle/service/filesystem/fsp_srv.cpp b/src/core/hle/service/filesystem/fsp_srv.cpp index 4110e67b4..1470f9017 100644 --- a/src/core/hle/service/filesystem/fsp_srv.cpp +++ b/src/core/hle/service/filesystem/fsp_srv.cpp @@ -196,11 +196,7 @@ static void BuildEntryIndex(std::vector& entries, const std::vec entries.reserve(entries.size() + new_data.size()); for (const auto& new_entry : new_data) { - auto& entry = entries.emplace_back(); - entry.filename[0] = '\0'; - std::strncat(entry.filename, new_entry->GetName().c_str(), FileSys::FILENAME_LENGTH - 1); - entry.type = type; - entry.file_size = new_entry->GetSize(); + entries.emplace_back(new_entry->GetName(), type, new_entry->GetSize()); } }