获取linux所有用户信息

#include <iostream>
#include <pwd.h>
#include <sys/types.h>
#include <stddef.h>
#include <string>
#include <list>
using namespace std;

void GetUser(list<string>& lsUser);

int main()
{
	list<string> lsUser;
	GetUser(lsUser);

	cout << "all user name in current computer:" << endl;

	list<string>::iterator it;
	for (it = lsUser.begin(); it != lsUser.end(); it++)
	{
		cout << it->c_str()<< endl;
	}

	return 0;
}

void GetUser(list<string>& lsUser)
{
	struct passwd* pstPwd = NULL;
	setpwent();

	while ( (pstPwd = getpwent()) != NULL )
	{
		lsUser.push_front(pstPwd->pw_name);
	}

	endpwent();
}