glob.hpp

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//    OpenVPN -- An application to securely tunnel IP networks
//               over a single port, with support for SSL/TLS-based
//               session authentication and key exchange,
//               packet encryption, packet authentication, and
//               packet compression.
//
//    Copyright (C) 2012- OpenVPN Inc.
//
//    SPDX-License-Identifier: MPL-2.0 OR AGPL-3.0-only WITH openvpn3-openssl-exception
//
 
#ifndef OPENVPN_COMMON_GLOB_H
#define OPENVPN_COMMON_GLOB_H
 
#include <glob.h>
 
#include <cstring>
#include <string>
 
namespace openvpn {
class Glob
{
  public:
    Glob(const std::string &pattern, const int flags)
    {
        reset();
        status_ = ::glob(pattern.c_str(), flags, nullptr, &glob_);
    }
 
    int status() const
    {
        return status_;
    }
 
    size_t size() const
    {
        return glob_.gl_pathc;
    }
 
    const char *operator[](const size_t i) const
    {
        return glob_.gl_pathv[i];
    }
 
    ~Glob()
    {
        ::globfree(&glob_);
    }
 
  private:
    void reset()
    {
        std::memset(&glob_, 0, sizeof(glob_));
        status_ = 0;
    }
 
    Glob(const Glob &) = delete;
    Glob &operator=(const Glob &) = delete;
 
    ::glob_t glob_;
    int status_;
};
} // namespace openvpn
 
#endif