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hackish random/urandom support

This commit is contained in:
georgemoralis 2024-06-08 10:22:28 +03:00
parent 8115665a90
commit 05e4a4b4e1
1 changed files with 15 additions and 0 deletions
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15
src/core/libraries/kernel/file_system.cpp
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@ -13,6 +13,10 @@ namespace Libraries::Kernel {
int PS4_SYSV_ABI sceKernelOpen(const char* path, int flags, u16 mode) {
LOG_INFO(Kernel_Fs, "path = {} flags = {:#x} mode = {}", path, flags, mode);
if (strcmp(path, "/dev/urandom") == 0 || strcmp(path, "/dev/random") == 0) {
std::srand(std::time(nullptr));
return 2222; // random hackish descriptor
}
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
auto* mnt = Common::Singleton<Core::FileSys::MntPoints>::Instance();
@ -75,6 +79,9 @@ int PS4_SYSV_ABI sceKernelClose(int d) {
if (d < 3) { // d probably hold an error code
return ORBIS_KERNEL_ERROR_EPERM;
}
if (d == 2222) { // random / urandom
return SCE_OK;
}
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
auto* file = h->GetFile(d);
if (file == nullptr) {
@ -144,6 +151,14 @@ s64 PS4_SYSV_ABI lseek(int d, s64 offset, int whence) {
}
s64 PS4_SYSV_ABI sceKernelRead(int d, void* buf, size_t nbytes) {
if (d == 2222) { // random / urandom
auto charbuff = static_cast<char*>(buf);
for (size_t i = 0; i < nbytes; i++)
charbuff[i] = std::rand() & 0xFF;
return nbytes;
}
if (buf == nullptr) {
return SCE_KERNEL_ERROR_EFAULT;
}