github.com/iDigitalFlame/xmt@v0.5.4/cmd/mem_aw.go (about)

     1  //go:build windows && !map
     2  // +build windows,!map
     3  
     4  // Copyright (C) 2020 - 2023 iDigitalFlame
     5  //
     6  // This program is free software: you can redistribute it and/or modify
     7  // it under the terms of the GNU General Public License as published by
     8  // the Free Software Foundation, either version 3 of the License, or
     9  // any later version.
    10  //
    11  // This program is distributed in the hope that it will be useful,
    12  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    13  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    14  // GNU General Public License for more details.
    15  //
    16  // You should have received a copy of the GNU General Public License
    17  // along with this program.  If not, see <https://www.gnu.org/licenses/>.
    18  //
    19  
    20  package cmd
    21  
    22  import "github.com/iDigitalFlame/xmt/device/winapi"
    23  
    24  func freeMemory(h, addr uintptr) error {
    25  	return winapi.NtFreeVirtualMemory(h, addr, 0)
    26  }
    27  func writeMemory(h uintptr, protect uint32, n uint64, b []byte) (uintptr, error) {
    28  	// 0x4 - PAGE_READWRITE
    29  	a, err := winapi.NtAllocateVirtualMemory(h, uint32(n), 0x4)
    30  	if err != nil {
    31  		return 0, err
    32  	}
    33  	if _, err := winapi.NtWriteVirtualMemory(h, a, b); err != nil {
    34  		winapi.NtFreeVirtualMemory(h, a, 0)
    35  		return 0, err
    36  	}
    37  	if _, err := winapi.NtProtectVirtualMemory(h, a, uint32(n), protect); err != nil {
    38  		winapi.NtFreeVirtualMemory(h, a, 0)
    39  		return 0, err
    40  	}
    41  	return a, nil
    42  }