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Implement posix_pwrite and posix_unlink

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Also fixes errno behavior in related functions.
This commit is contained in:
Stephen Miller 2025-02-17 21:19:14 -06:00
parent 1858214d51
commit 4118999831
1 changed files with 50 additions and 21 deletions
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71
src/core/libraries/kernel/file_system.cpp
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@ -870,39 +870,53 @@ s32 PS4_SYSV_ABI sceKernelGetdirentries(s32 fd, char* buf, s32 nbytes, s64* base
return result;
}
s64 PS4_SYSV_ABI sceKernelPwrite(int d, void* buf, size_t nbytes, s64 offset) {
if (d < 3) {
return ORBIS_KERNEL_ERROR_EPERM;
}
s64 PS4_SYSV_ABI posix_pwrite(s32 fd, void* buf, size_t nbytes, s64 offset) {
if (offset < 0) {
return ORBIS_KERNEL_ERROR_EINVAL;
*__Error() = POSIX_EINVAL;
return -1;
}
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
auto* file = h->GetFile(d);
auto* file = h->GetFile(fd);
if (file == nullptr) {
return ORBIS_KERNEL_ERROR_EBADF;
*__Error() = POSIX_EBADF;
return -1;
}
std::scoped_lock lk{file->m_mutex};
if (file->type == Core::FileSys::FileType::Device) {
return file->device->pwrite(buf, nbytes, offset);
s64 result = file->device->pwrite(buf, nbytes, offset);
if (result < 0) {
ErrSceToPosix(result);
return -1;
}
return result;
}
const s64 pos = file->f.Tell();
SCOPE_EXIT {
file->f.Seek(pos);
};
if (!file->f.Seek(offset)) {
LOG_CRITICAL(Kernel_Fs, "sceKernelPwrite: failed to seek");
return ORBIS_KERNEL_ERROR_EINVAL;
*__Error() = POSIX_EIO;
return -1;
}
return file->f.WriteRaw<u8>(buf, nbytes);
}
int PS4_SYSV_ABI sceKernelUnlink(const char* path) {
s64 PS4_SYSV_ABI sceKernelPwrite(s32 fd, void* buf, size_t nbytes, s64 offset) {
s64 result = posix_pwrite(fd, buf, nbytes, offset);
if (result < 0) {
LOG_ERROR(Kernel_Fs, "error = {}", *__Error());
return ErrnoToSceKernelError(*__Error());
}
return result;
}
s32 PS4_SYSV_ABI posix_unlink(const char* path) {
if (path == nullptr) {
return ORBIS_KERNEL_ERROR_EINVAL;
*__Error() = POSIX_EINVAL;
return -1;
}
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
@ -911,26 +925,41 @@ int PS4_SYSV_ABI sceKernelUnlink(const char* path) {
bool ro = false;
const auto host_path = mnt->GetHostPath(path, &ro);
if (host_path.empty()) {
return ORBIS_KERNEL_ERROR_EACCES;
*__Error() = POSIX_EACCES;
return -1;
}
if (ro) {
return ORBIS_KERNEL_ERROR_EROFS;
*__Error() = POSIX_EROFS;
return -1;
}
if (std::filesystem::is_directory(host_path)) {
return ORBIS_KERNEL_ERROR_EPERM;
*__Error() = POSIX_EPERM;
return -1;
}
auto* file = h->GetFile(host_path);
if (file != nullptr) {
file->f.Unlink();
if (file == nullptr) {
*__Error() = POSIX_ENOENT;
return -1;
}
file->f.Unlink();
LOG_INFO(Kernel_Fs, "Unlinked {}", path);
return ORBIS_OK;
}
s32 PS4_SYSV_ABI sceKernelUnlink(const char* path) {
s32 result = posix_unlink(path);
if (result < 0) {
LOG_ERROR(Kernel_Fs, "error = {}", *__Error());
return ErrnoToSceKernelError(*__Error());
}
return result;
}
void RegisterFileSystem(Core::Loader::SymbolsResolver* sym) {
LIB_FUNCTION("6c3rCVE-fTU", "libkernel", 1, "libkernel", 1, 1, open);
LIB_FUNCTION("wuCroIGjt2g", "libScePosix", 1, "libkernel", 1, 1, posix_open);
@ -1014,12 +1043,12 @@ void RegisterFileSystem(Core::Loader::SymbolsResolver* sym) {
LIB_FUNCTION("f09KvIPy-QY", "libkernel", 1, "libkernel", 1, 1, posix_getdirentries);
LIB_FUNCTION("taRWhTJFTgE", "libkernel", 1, "libkernel", 1, 1, sceKernelGetdirentries);
// LIB_FUNCTION("C2kJ-byS5rM", "libScePosix", 1, "libkernel", 1, 1, posix_pwrite);
// LIB_FUNCTION("C2kJ-byS5rM", "libkernel", 1, "libkernel", 1, 1, posix_pwrite);
LIB_FUNCTION("C2kJ-byS5rM", "libScePosix", 1, "libkernel", 1, 1, posix_pwrite);
LIB_FUNCTION("C2kJ-byS5rM", "libkernel", 1, "libkernel", 1, 1, posix_pwrite);
LIB_FUNCTION("nKWi-N2HBV4", "libkernel", 1, "libkernel", 1, 1, sceKernelPwrite);
// LIB_FUNCTION("VAzswvTOCzI", "libScePosix", 1, "libkernel", 1, 1, posix_unlink);
// LIB_FUNCTION("VAzswvTOCzI", "libkernel", 1, "libkernel", 1, 1, posix_unlink);
LIB_FUNCTION("VAzswvTOCzI", "libScePosix", 1, "libkernel", 1, 1, posix_unlink);
LIB_FUNCTION("VAzswvTOCzI", "libkernel", 1, "libkernel", 1, 1, posix_unlink);
LIB_FUNCTION("AUXVxWeJU-A", "libkernel", 1, "libkernel", 1, 1, sceKernelUnlink);
}