MVoz

#OpenSSL cheat sheet This is a brief howto for socket programmers.

create RSA key pairs

ex: 1024bits length key pair:

$> openssl genrsa -out myprivate.pem 1024
$> openssl rsa -in myprivate.pem -pubout -out mypublic.pem

MVoz

extract *.lib from *.dll

do the following steps:

1. exports

extract the functions and classes in *.dll by:
$> dumpbin.exe /exports libsample.dll /out:libsample.def

2. function names

MVoz

//Git Mergetool and difftool with Beyond Compare 4
//For Windows
//IF running this command in git bash then escape $ with \
git config --global diff.tool bc4
git config --global difftool.bc4.cmd "\"C:/Program Files (x86)/Beyond Compare 4/BCompare.exe\" \"\$LOCAL\" \"\$REMOTE\""
git config --global difftool.prompt false

git config --global merge.tool bc4
git config --global mergetool.bc4.cmd "\"C:/Program Files (x86)/Beyond Compare 4/BCompare.exe\" \"\$LOCAL\" \"\$REMOTE\" \"\$BASE\" \"\$MERGED\""
git config --global mergetool.bc4.trustExitCode true

MVoz

On Windows 7 - 32 Bit Install

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Visual Studio 2017\Visual Studio Tools

Developer Command Prompt for VS 2017
Runs: %comspec% /k "C:\Program Files\Microsoft Visual Studio\2017\Community\Common7\Tools\VsDevCmd.bat"
Sets:  PROCESSOR_ARCHITECTURE=x86

x64 Native Tools Command Prompt for VS 2017  (cl.exe doesn't run!)
Runs: %comspec% /k "C:\Program Files\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvars64.bat"

MVoz

@echo off
setlocal
for /F %%a IN ('echo %1^|findstr /R ^[0-9][0-9]*$') DO set arg1num=%%a
IF "%1"=="%arg1num%" (
	doskey /history | findstr /N /R .* | findstr /B %1: > %TEMP%\__history.tmp
	FOR /F "delims=: tokens=1*" %%a IN (%TEMP%\__history.tmp) DO @echo %%b
) ELSE (
	IF "%1"=="" (
		doskey /history | findstr /N /R .* 
	) ELSE (

MVoz

$sdkver = "10.0.14393.0"
$sdkdir = "${env:ProgramFiles(x86)}\Windows Kits\10"
$sdkincdir = "$sdkdir\Include\$sdkver"
$sdklibdir = "$sdkdir\Lib\$sdkver"
$vcdir = "${env:ProgramFiles(x86)}\Microsoft Visual Studio 14.0\VC"
$env:path += ";$vcdir\bin\amd64;$sdkdir\bin\amd64"
$env:include += ";$vcdir\include" `
  + ";$sdkincdir\shared;$sdkincdir\ucrt;$sdkincdir\um;$sdkincdir\winrt"
$env:lib += ";$vcdir\lib\amd64;$sdklibdir\ucrt\x64;$sdklibdir\um\x64"
$env:libpath += "$vcdir\lib\amd64"

MVoz

@"C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\amd64\cl.exe" %*

MVoz

How to write your own build script by using benefit from MSBuild environment variables configuration corresponding specified platform (C++)

The following XML enables to resolve this challenge. SetBuildDefaultEnvironmentVariables is key of this.

<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="ManualBuild" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
    <PlatformToolset>v140</PlatformToolset> <!-- (Optional) only if want to explicitly specify platform toolset version -->
 8.1 

MVoz

MsBuild exploration for C++

Three key files

The following three XMLs are key, and I recommend to import them always to take benefit to pre-defined Visual Studio tasks.

• $(VCTargetsPath)\Microsoft.Cpp.default.props
• $(VCTargetsPath)\Microsoft.Cpp.props
• $(VCTargetsPath)\Microsoft.Cpp.targets

MVoz

Create and Start Hotspot
netsh wlan set hostednetwork mode=allow ssid=MyHotspot key=MyPassword

Start Hotspot
netsh wlan start hostednetwork

Stop Hotspot
netsh wlan stop hostednetwork