ShuriZma
/
xenia-canary
mirror of https://github.com/xenia-canary/xenia-canary.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[Kernel] Implement RtlImageNtHeader.

This commit is contained in:
gibbed 2019-07-29 19:23:16 -05:00
parent cd18b702a6
commit 669d83896d
1 changed files with 24 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
src/xenia/kernel/xboxkrnl/xboxkrnl_rtl.cc
View File

@ -312,6 +312,30 @@ dword_result_t RtlUnicodeToMultiByteN(pointer_t<uint8_t> destination_ptr,
DECLARE_XBOXKRNL_EXPORT3(RtlUnicodeToMultiByteN, kNone, kImplemented,
kHighFrequency, kSketchy);
// https://undocumented.ntinternals.net/UserMode/Undocumented%20Functions/Executable%20Images/RtlImageNtHeader.html
pointer_result_t RtlImageNtHeader(lpvoid_t module) {
if (!module) {
return 0;
}
// Little-endian! no swapping!
auto dos_header = module.as<const uint8_t*>();
auto dos_magic = *reinterpret_cast<const uint16_t*>(&dos_header[0x00]);
if (dos_magic != 0x5A4D) { // 'MZ'
return 0;
}
auto dos_lfanew = *reinterpret_cast<const int32_t*>(&dos_header[0x3C]);
auto nt_header = &dos_header[dos_lfanew];
auto nt_magic = *reinterpret_cast<const uint32_t*>(&nt_header[0x00]);
if (nt_magic != 0x4550) { // 'PE'
return 0;
}
return static_cast<uint32_t>(nt_header - kernel_memory()->virtual_membase());
}
DECLARE_XBOXKRNL_EXPORT1(RtlImageNtHeader, kNone, kImplemented);
pointer_result_t RtlImageXexHeaderField(pointer_t<xex2_header> xex_header,
dword_t field_dword) {
uint32_t field_value = 0;