Function ImpersonateUser

util/system/shellcommand.cpp:73–87

    }

    void ImpersonateUser(const TShellCommandOptions::TUserOptions& userOpts) {
        if (GetUsername() == userOpts.Name) {
            return;
        }
        const passwd* newUser = getpwnam(userOpts.Name.c_str());
        if (!newUser) {
            ythrow TSystemError(errno) << "getpwnam failed";
        }
        if (userOpts.UseUserGroups) {
            SetUserGroups(newUser);
        }
        if (setuid(newUser->pw_uid)) {
            ythrow TSystemError(errno) << "setuid failed";
        }
    }
#elif defined(_win_)
    constexpr static size_t MAX_COMMAND_LINE = 32 * 1024;