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am: Resolve truncation and sign conversion warnings in WriteContentData() (#5397) 

We can adjust the API to allow std::size_t indices, which simplifies
operating with standard container types. It also prevents truncation
warnings from occurring in these cases as well.
This commit is contained in:
LC 2020-06-20 14:09:56 -04:00 committed by GitHub
parent 353780e1c9
commit 902cc1eb49
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6 changed files with 32 additions and 31 deletions
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9
src/core/file_sys/cia_container.cpp
View File

@ -206,10 +206,10 @@ u64 CIAContainer::GetMetadataOffset() const {
return offset;
}
u64 CIAContainer::GetContentOffset(u16 index) const {
u64 CIAContainer::GetContentOffset(std::size_t index) const {
u64 offset =
Common::AlignUp(GetTitleMetadataOffset() + cia_header.tmd_size, CIA_SECTION_ALIGNMENT);
for (u16 i = 0; i < index; i++) {
for (std::size_t i = 0; i < index; i++) {
offset += GetContentSize(i);
}
return offset;
@ -235,10 +235,11 @@ u64 CIAContainer::GetTotalContentSize() const {
return cia_header.content_size;
}
u64 CIAContainer::GetContentSize(u16 index) const {
u64 CIAContainer::GetContentSize(std::size_t index) const {
// If the content doesn't exist in the CIA, it doesn't have a size.
if (!cia_header.isContentPresent(index))
if (!cia_header.IsContentPresent(index)) {
return 0;
}
return cia_tmd.GetContentSizeByIndex(index);
}

8
src/core/file_sys/cia_container.h
View File

@ -58,14 +58,14 @@ public:
u64 GetTicketOffset() const;
u64 GetTitleMetadataOffset() const;
u64 GetMetadataOffset() const;
u64 GetContentOffset(u16 index = 0) const;
u64 GetContentOffset(std::size_t index = 0) const;
u32 GetCertificateSize() const;
u32 GetTicketSize() const;
u32 GetTitleMetadataSize() const;
u32 GetMetadataSize() const;
u64 GetTotalContentSize() const;
u64 GetContentSize(u16 index = 0) const;
u64 GetContentSize(std::size_t index = 0) const;
void Print() const;
@ -81,11 +81,11 @@ private:
u64_le content_size;
std::array<u8, CIA_CONTENT_BITS_SIZE> content_present;
bool isContentPresent(u16 index) const {
bool IsContentPresent(std::size_t index) const {
// The content_present is a bit array which defines which content in the TMD
// is included in the CIA, so check the bit for this index and add if set.
// The bits in the content index are arranged w/ index 0 as the MSB, 7 as the LSB, etc.
return (content_present[index >> 3] & (0x80 >> (index & 7)));
return (content_present[index >> 3] & (0x80 >> (index & 7))) != 0;
}
};

8
src/core/file_sys/title_metadata.cpp
View File

@ -165,19 +165,19 @@ u32 TitleMetadata::GetDLPContentID() const {
return tmd_chunks[TMDContentIndex::DLP].id;
}
u32 TitleMetadata::GetContentIDByIndex(u16 index) const {
u32 TitleMetadata::GetContentIDByIndex(std::size_t index) const {
return tmd_chunks[index].id;
}
u16 TitleMetadata::GetContentTypeByIndex(u16 index) const {
u16 TitleMetadata::GetContentTypeByIndex(std::size_t index) const {
return tmd_chunks[index].type;
}
u64 TitleMetadata::GetContentSizeByIndex(u16 index) const {
u64 TitleMetadata::GetContentSizeByIndex(std::size_t index) const {
return tmd_chunks[index].size;
}
std::array<u8, 16> TitleMetadata::GetContentCTRByIndex(u16 index) const {
std::array<u8, 16> TitleMetadata::GetContentCTRByIndex(std::size_t index) const {
std::array<u8, 16> ctr{};
std::memcpy(ctr.data(), &tmd_chunks[index].index, sizeof(u16));
return ctr;

8
src/core/file_sys/title_metadata.h
View File

@ -96,10 +96,10 @@ public:
u32 GetBootContentID() const;
u32 GetManualContentID() const;
u32 GetDLPContentID() const;
u32 GetContentIDByIndex(u16 index) const;
u16 GetContentTypeByIndex(u16 index) const;
u64 GetContentSizeByIndex(u16 index) const;
std::array<u8, 16> GetContentCTRByIndex(u16 index) const;
u32 GetContentIDByIndex(std::size_t index) const;
u16 GetContentTypeByIndex(std::size_t index) const;
u64 GetContentSizeByIndex(std::size_t index) const;
std::array<u8, 16> GetContentCTRByIndex(std::size_t index) const;
void SetTitleID(u64 title_id);
void SetTitleType(u32 type);

28
src/core/hle/service/am/am.cpp
View File

@ -151,21 +151,22 @@ ResultVal<std::size_t> CIAFile::WriteContentData(u64 offset, std::size_t length,
// Data is not being buffered, so we have to keep track of how much of each <ID>.app
// has been written since we might get a written buffer which contains multiple .app
// contents or only part of a larger .app's contents.
u64 offset_max = offset + length;
for (int i = 0; i < container.GetTitleMetadata().GetContentCount(); i++) {
const u64 offset_max = offset + length;
for (std::size_t i = 0; i < container.GetTitleMetadata().GetContentCount(); i++) {
if (content_written[i] < container.GetContentSize(i)) {
// The size, minimum unwritten offset, and maximum unwritten offset of this content
u64 size = container.GetContentSize(i);
u64 range_min = container.GetContentOffset(i) + content_written[i];
u64 range_max = container.GetContentOffset(i) + size;
const u64 size = container.GetContentSize(i);
const u64 range_min = container.GetContentOffset(i) + content_written[i];
const u64 range_max = container.GetContentOffset(i) + size;
// The unwritten range for this content is beyond the buffered data we have
// or comes before the buffered data we have, so skip this content ID.
if (range_min > offset_max || range_max < offset)
if (range_min > offset_max || range_max < offset) {
continue;
}
// Figure out how much of this content ID we have just recieved/can write out
u64 available_to_write = std::min(offset_max, range_max) - range_min;
const u64 available_to_write = std::min(offset_max, range_max) - range_min;
// Since the incoming TMD has already been written, we can use GetTitleContentPath
// to get the content paths to write to.
@ -173,14 +174,14 @@ ResultVal<std::size_t> CIAFile::WriteContentData(u64 offset, std::size_t length,
FileUtil::IOFile file(GetTitleContentPath(media_type, tmd.GetTitleID(), i, is_update),
content_written[i] ? "ab" : "wb");
if (!file.IsOpen())
if (!file.IsOpen()) {
return FileSys::ERROR_INSUFFICIENT_SPACE;
}
std::vector<u8> temp(buffer + (range_min - offset),
buffer + (range_min - offset) + available_to_write);
if (tmd.GetContentTypeByIndex(static_cast<u16>(i)) &
FileSys::TMDContentTypeFlag::Encrypted) {
if ((tmd.GetContentTypeByIndex(i) & FileSys::TMDContentTypeFlag::Encrypted) != 0) {
decryption_state->content[i].ProcessData(temp.data(), temp.data(), temp.size());
}
@ -194,7 +195,7 @@ ResultVal<std::size_t> CIAFile::WriteContentData(u64 offset, std::size_t length,
}
}
return MakeResult<std::size_t>(length);
return MakeResult(length);
}
ResultVal<std::size_t> CIAFile::Write(u64 offset, std::size_t length, bool flush,
@ -464,11 +465,10 @@ std::string GetTitleMetadataPath(Service::FS::MediaType media_type, u64 tid, boo
return content_path + fmt::format("{:08x}.tmd", (update ? update_id : base_id));
}
std::string GetTitleContentPath(Service::FS::MediaType media_type, u64 tid, u16 index,
bool update) {
std::string GetTitleContentPath(FS::MediaType media_type, u64 tid, std::size_t index, bool update) {
std::string content_path = GetTitlePath(media_type, tid) + "content/";
if (media_type == Service::FS::MediaType::GameCard) {
if (media_type == FS::MediaType::GameCard) {
// TODO(shinyquagsire23): get current app file if TID matches?
LOG_ERROR(Service_AM, "Request for gamecard partition {} content path unimplemented!",
static_cast<u32>(index));

2
src/core/hle/service/am/am.h
View File

@ -134,7 +134,7 @@ std::string GetTitleMetadataPath(Service::FS::MediaType media_type, u64 tid, boo
* @param update set true if the incoming TMD should be used instead of the current TMD
* @returns string path to the .app file
*/
std::string GetTitleContentPath(Service::FS::MediaType media_type, u64 tid, u16 index = 0,
std::string GetTitleContentPath(FS::MediaType media_type, u64 tid, std::size_t index = 0,
bool update = false);
/**