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ghostname_win32.cpp
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1//
2// Copyright (C) 2001-2023 Graeme Walker <graeme_walker@users.sourceforge.net>
3//
4// This program is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8//
9// This program is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12// GNU General Public License for more details.
13//
14// You should have received a copy of the GNU General Public License
15// along with this program. If not, see <http://www.gnu.org/licenses/>.
16// ===
17///
18/// \file ghostname_win32.cpp
19///
20
21#include "gdef.h"
22#include "ghostname.h"
23#include "genvironment.h"
24#include "gstr.h"
25
26std::string G::hostname()
27{
28 std::vector<char> buffer( 257U , '\0' ) ; // documented hostname limit of 256
29 if( 0 == ::gethostname( &buffer[0] , static_cast<int>(buffer.size()-1U) ) && buffer.at(0U) != '\0' )
30 {
31 buffer[buffer.size()-1U] = '\0' ;
32 return std::string( &buffer[0] ) ;
33 }
34 else
35 {
36 return Str::printable( Environment::get("COMPUTERNAME",std::string()) , '_' ) ;
37 }
38}
39
std::string hostname()
Returns the hostname.