Question

当我尝试在服务器（路由器）上运行命令时，得到

[C] 1月3日05:32:16 ndm：bin :: ndmc：无效的选项“ -c”。

大部分代码来自文档。有代码：

#include <iostream>
#include <string.h>
#include <libssh/libssh.h>

using std::string;
using std::cout;
using std::endl;
using std::cin;

string exec_ssh_command(ssh_session 
session, char *command) {
    string receive = "";
    int rc, nbytes;
    char buffer[256];
    ssh_channel channel = ssh_channel_new(session);
    if( channel == NULL )
            return NULL;

    rc = ssh_channel_open_session(channel);
    if( rc != SSH_OK ) {
            ssh_channel_free(channel);
            return NULL;
    }

    rc = ssh_channel_request_exec(channel, command);
    if( rc != SSH_OK ) {
            ssh_channel_close(channel);
            ssh_channel_free(channel);
            cout << "Error";
            return NULL;
    }
    nbytes = ssh_channel_read(channel, buffer, sizeof(buffer), 0);
    while (nbytes > 0)
    {
            if (write(1, buffer, nbytes) != (unsigned int) nbytes)
            {
                    ssh_channel_close(channel);
                    ssh_channel_free(channel);
                    return NULL;
            }
            nbytes = ssh_channel_read(channel, buffer, sizeof(buffer), 0);
    }

    if( nbytes < 0 )
            return NULL;

    ssh_channel_send_eof(channel);
    ssh_channel_close(channel);
    ssh_channel_free(channel);

    return receive;
}

int main() {
    ssh_session my_ssh_session = ssh_new();
    if( my_ssh_session == NULL ) {
            cout << "Error creating ssh session" << endl;
            return 1;
    }
    ssh_options_set(my_ssh_session, SSH_OPTIONS_HOST, "192.168.1.1");
    ssh_options_set(my_ssh_session, SSH_OPTIONS_USER, "admin");
    int rc = ssh_connect(my_ssh_session);
    if( rc != SSH_OK ) {
            cout << "Error with connecting" << endl;
            ssh_free(my_ssh_session);
            return -1;
    }

    rc = ssh_userauth_password(my_ssh_session, NULL, "pass");
    if( rc != SSH_AUTH_SUCCESS) {
            cout << "Error with authorization  " << ssh_get_error(my_ssh_session) << endl;
            ssh_disconnect(my_ssh_session);
            ssh_free(my_ssh_session);
            return -1;
    }
    string ip_hotspot = exec_ssh_command(my_ssh_session, "show ip hotspot");
    cout << ip_hotspot << endl;
    ssh_disconnect(my_ssh_session);
    ssh_free(my_ssh_session);
    return 0;
}

我的路由器是zyxel keenetic ultra。

uname -a：Linux localhost 4.9.112-perf-gfb7749d #1 SMP PREEMPT Thu Dec 6 16:06:30 WIB 2018 aarch64 Android

g ++ -v：
clang version 7.0.1 (tags/RELEASE_701/final) Target: aarch64--linux-android Thread model: posix

我是libssh的初学者，所以请简单说明。：）

提前谢谢！

Answer 1

已修复。在3.3.2的{{1}}版本上可以正常工作。

尝试在路由器上执行命令。 C ++和libssh

1 个答案: