diff options
Diffstat (limited to 'src/core/file_sys')
| -rw-r--r-- | src/core/file_sys/ips_layer.cpp | 64 | ||||
| -rw-r--r-- | src/core/file_sys/ips_layer.h | 1 | ||||
| -rw-r--r-- | src/core/file_sys/patch_manager.cpp | 2 |
3 files changed, 51 insertions, 16 deletions
diff --git a/src/core/file_sys/ips_layer.cpp b/src/core/file_sys/ips_layer.cpp index abe3dcf62..0cadbc375 100644 --- a/src/core/file_sys/ips_layer.cpp +++ b/src/core/file_sys/ips_layer.cpp @@ -123,6 +123,22 @@ static std::string EscapeStringSequences(std::string in) { return in; } +void IPSwitchCompiler::ParseFlag(const std::string& line) { + if (StartsWith(line, "@flag offset_shift ")) { + // Offset Shift Flag + offset_shift = std::stoll(line.substr(19), nullptr, 0); + } else if (StartsWith(line, "@little-endian")) { + // Set values to read as little endian + is_little_endian = true; + } else if (StartsWith(line, "@big-endian")) { + // Set values to read as big endian + is_little_endian = false; + } else if (StartsWith(line, "@flag print_values")) { + // Force printing of applied values + print_values = true; + } +} + void IPSwitchCompiler::Parse() { const auto bytes = patch_text->ReadAllBytes(); std::stringstream s; @@ -141,7 +157,17 @@ void IPSwitchCompiler::Parse() { auto line = lines[i]; // Remove midline comments - const auto comment_index = line.find("//"); + std::size_t comment_index = std::string::npos; + bool within_string = false; + for (std::size_t k = 0; k < line.size(); ++k) { + if (line[k] == '\"' && (k > 0 && line[k - 1] != '\\')) { + within_string = !within_string; + } else if (line[k] == '\\' && (k < line.size() - 1 && line[k + 1] == '\\')) { + comment_index = k; + break; + } + } + if (!StartsWith(line, "//") && comment_index != std::string::npos) { last_comment = line.substr(comment_index + 2); line = line.substr(0, comment_index); @@ -156,9 +182,6 @@ void IPSwitchCompiler::Parse() { if (raw_build_id.size() != 0x40) raw_build_id.resize(0x40, '0'); nso_build_id = Common::HexStringToArray<0x20>(raw_build_id); - } else if (StartsWith(line, "@flag offset_shift ")) { - // Offset Shift Flag - offset_shift = std::stoll(line.substr(19), nullptr, 0); } else if (StartsWith(line, "#")) { // Mandatory Comment LOG_INFO(Loader, "[IPSwitchCompiler ('{}')] Forced output comment: {}", @@ -170,15 +193,6 @@ void IPSwitchCompiler::Parse() { continue; if (last_comment.find_first_not_of(' ') != 0) last_comment = last_comment.substr(last_comment.find_first_not_of(' ')); - } else if (StartsWith(line, "@little-endian")) { - // Set values to read as little endian - is_little_endian = true; - } else if (StartsWith(line, "@big-endian")) { - // Set values to read as big endian - is_little_endian = false; - } else if (StartsWith(line, "@flag print_values")) { - // Force printing of applied values - print_values = true; } else if (StartsWith(line, "@enabled") || StartsWith(line, "@disabled")) { // Start of patch const auto enabled = StartsWith(line, "@enabled"); @@ -195,6 +209,18 @@ void IPSwitchCompiler::Parse() { break; const auto patch_line = lines[++i]; + // Start of new patch + if (StartsWith(patch_line, "@enabled") || StartsWith(patch_line, "@disabled")) { + --i; + break; + } + + // Check for a flag + if (StartsWith(patch_line, "@")) { + ParseFlag(patch_line); + continue; + } + // 11 - 8 hex digit offset + space + minimum two digit overwrite val if (patch_line.length() < 11) break; @@ -205,9 +231,15 @@ void IPSwitchCompiler::Parse() { // 9 - first char of replacement val if (patch_line[9] == '\"') { // string replacement - const auto end_index = patch_line.find('\"', 10); + auto end_index = patch_line.find('\"', 10); if (end_index == std::string::npos || end_index < 10) return; + while (patch_line[end_index - 1] == '\\') { + end_index = patch_line.find('\"', end_index + 1); + if (end_index == std::string::npos || end_index < 10) + return; + } + auto value = patch_line.substr(10, end_index - 10); value = EscapeStringSequences(value); replace.reserve(value.size()); @@ -226,10 +258,12 @@ void IPSwitchCompiler::Parse() { patch_text->GetName(), offset, Common::HexVectorToString(replace)); } - patch.records.emplace(offset, std::move(replace)); + patch.records.insert_or_assign(offset, std::move(replace)); } patches.push_back(std::move(patch)); + } else if (StartsWith(line, "@")) { + ParseFlag(line); } } diff --git a/src/core/file_sys/ips_layer.h b/src/core/file_sys/ips_layer.h index b07cc5673..57da00da8 100644 --- a/src/core/file_sys/ips_layer.h +++ b/src/core/file_sys/ips_layer.h @@ -22,6 +22,7 @@ public: VirtualFile Apply(const VirtualFile& in) const; private: + void ParseFlag(const std::string& flag); void Parse(); bool valid = false; diff --git a/src/core/file_sys/patch_manager.cpp b/src/core/file_sys/patch_manager.cpp index 03df24906..ab2e5e43d 100644 --- a/src/core/file_sys/patch_manager.cpp +++ b/src/core/file_sys/patch_manager.cpp @@ -76,7 +76,7 @@ VirtualDir PatchManager::PatchExeFS(VirtualDir exefs) const { static std::vector<VirtualFile> CollectPatches(const std::vector<VirtualDir>& patch_dirs, const std::string& build_id) { std::vector<VirtualFile> out; - ips.reserve(patch_dirs.size()); + out.reserve(patch_dirs.size()); for (const auto& subdir : patch_dirs) { auto exefs_dir = subdir->GetSubdirectory("exefs"); if (exefs_dir != nullptr) { |