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#include <iostream>
#include <fstream>
#include <string>
#if defined(_WIN32)
#define WINDOWS_LEAN_AND_MEAN
#include <windows.h>
#undef max
#else
extern char **environ; // see 'man environ'
#endif
int main(int argc, const char* argv[])
{
if(argc < 2)
{
return 0;
}
std::string cmd = argv[1];
if(cmd == "envdump")
{
if(argc < 3)
{
return 0;
}
std::ofstream ostrm(argv[2], std::ios::binary);
#if defined(_WIN32)
auto env_strings = GetEnvironmentStrings();
const char* ptr = env_strings;
std::string env;
while(true)
{
if(*ptr == '\0')
{
if(env.empty())
{
// no more
break;
}
ostrm << env << "\n";
env.clear();
++ptr;
continue;
}
env += *ptr;
++ptr;
}
FreeEnvironmentStrings(env_strings);
#else
for(auto current = environ; *current; ++current)
{
ostrm << (*current) << "\n";
}
#endif
}
if(cmd == "retval")
{
if(argc < 3)
{
return 0;
}
return std::stoi(argv[2]);
}
if(cmd == "abort")
{
abort();
}
if(cmd == "throw")
{
throw "ouch";
}
return 0;
}
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