vcpkg安装libssh2

1、vcpkg：win10安装使用 vcpkg

2、安装libssh2

vcpkg install libssh2:x64-windows

测试

1、qtcreator中创建一个工程






创建的工程如下：

2、修改ssl2_test.pro。 在最下面添加：

INCLUDEPATH += C:\Users\oceanstar\vcpkg\win\vcpkg\installed\x64-windows\include
LIBS    += C:\Users\oceanstar\vcpkg\win\vcpkg\installed\x64-windows\lib\libssh2.lib

3、main.cpp中

#include <QCoreApplication>
#include <libssh2.h>
#include <libssh2_sftp.h>



int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    if (!libssh2_version(LIBSSH2_VERSION_NUM)) {
       fprintf (stderr, "Runtime libssh2 version too old!");
       exit(1);
    }
    printf("libssh2 version: %s", libssh2_version(0) );

    return a.exec();
}

4、运行

结果报错：code -1073741515

原因：缺失dll
解决：将vcpkg\installed\x64-windows\bin\libssh2.dll复制到qt的debug目录下

重新运行，效果如下

封装SshClient

1、创建一个类SshClient

封装1：libssh初始化与析构

sshclient.h

#ifndef SSHCLIENT_H
#define SSHCLIENT_H
#include <QLoggingCategory>
#include <QObject>
#include <libssh2.h>
#include <libssh2_sftp.h>
Q_DECLARE_LOGGING_CATEGORY(sshclient)

class SshClient : public QObject
{
    Q_OBJECT
    static int s_nbInstance;
    QString m_name;


public:
    explicit SshClient(const QString &name = "noname",QObject *parent = nullptr);
    virtual ~SshClient();
    QString getName() const;
    void setName(const QString &name);

signals:

};

#endif // SSHCLIENT_H

sshclient.cpp

#include "sshclient.h"
Q_LOGGING_CATEGORY(sshclient, "ssh.client", QtDebugMsg)

int SshClient::s_nbInstance = 0;
SshClient::SshClient(const QString &name, QObject *parent) : QObject(parent), m_name(name)
{
    if(s_nbInstance == 0)
    {
        qCDebug(sshclient)  << "["  << __FILE__ << ","<<__FUNCTION__  << "(" << __LINE__ << ")]" << m_name << ": libssh2_init()";
        Q_ASSERT(libssh2_init(0) == 0);
    }
    ++s_nbInstance;

    qCDebug(sshclient)  << "["  << __FILE__ << ","<<__FUNCTION__  << "(" << __LINE__ << ")]" << m_name << ": created " << this;
}


SshClient::~SshClient()
{
    qCDebug(sshclient)  << "["  << __FILE__ << ","<<__FUNCTION__  << "(" << __LINE__ << ")]" << m_name << ": SshClient::~SshClient() " << this;
    --s_nbInstance;
    if(s_nbInstance == 0)
    {
        qCDebug(sshclient)  << "["  << __FILE__ << ","<<__FUNCTION__  << "(" << __LINE__ << ")]" << m_name << ": libssh2_exit()";
        libssh2_exit();
    }
    qCDebug(sshclient)  << "["  << __FILE__ << ","<<__FUNCTION__  << "(" << __LINE__ << ")]" << m_name << ": destroyed";
}

QString SshClient::getName() const
{
    return m_name;
}
void SshClient::setName(const QString &name)
{
    m_name = name;
}

使用正常：

    # this is heuristically generated, and may not be correct
    find_package(Libssh2 CONFIG REQUIRED)
    target_link_libraries(main PRIVATE Libssh2::libssh2)