http://blog.csdn.net/wyc6668205/article/details/9179197
Xmanager Enterprise 4 putty 等工具都功能都是利用libssh2来实现的。sftp ssh2等
集成：
下载libssh2-1.6.0
D:libssh2-1.6.0libssh2-1.6.0win32libssh2.dsw
..win32,..include,D:openssl-1.0.0copenssl-1.0.0cinclude,D:openssl-1.0.0copenssl-1.0.0cinc32
（需要提前编译好ssl）
根据工程类型分别编译生成dll和lib
在session.c的文件中，会出现错误：
/* Windows? */
unsigned int option_value;
socklen_t option_len = sizeof(option_value);
if (getsockopt
(sockfd, SOL_SOCKET, SO_ERROR, (void *) &option_value, &option_len)) {
/* Assume blocking on error */
return 1;
}
在前面加这一句即可
typedef int socklen_t;
应用：sftp上传文件
利用生成的静态库和D:libssh2-1.6.0libssh2-1.6.0win32,D:libssh2-1.6.0libssh2-1.6.0include生产文件。
/*
* Sample showing how to do SFTP transfers.
*
* The sample code has default values for host name, user name, password
* and path to copy, but you can specify them on the command line like:
*
* "sftp 192.168.0.1 user password /tmp/secrets -p|-i|-k"
*/
#include "libssh2_config.h"
#include <libssh2.h>
#include <libssh2_sftp.h> #ifdef HAVE_WINSOCK2_H
#include <winsock2.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif #include <sys/types.h>
#include <fcntl.h>
#include <errno.h>
#include <stdio.h>
#include <ctype.h>
#include <io.h>
#include <conio.h>
const char *keyfile1="~/.ssh/id_rsa.pub"; const char *keyfile2="~/.ssh/id_rsa"; const char *username="username"; const char *password="password"; const char *sftppath="/tmp/TEST";
static void kbd_callback(const char *name, int name_len,
const char *instruction, int instruction_len, int num_prompts,
const LIBSSH2_USERAUTH_KBDINT_PROMPT *prompts,
LIBSSH2_USERAUTH_KBDINT_RESPONSE *responses,
void **abstract)
{
int i;
size_t n;
char buf[1024];
(void)abstract;
printf("Performing keyboard-interactive authentication.
");
printf("Authentication name: '");
fwrite(name, 1, name_len, stdout);
printf("'
");
printf("Authentication instruction: '");
fwrite(instruction, 1, instruction_len, stdout);
printf("'
");
printf("Number of prompts: %d
", num_prompts);
for (i = 0; i < num_prompts; i++) {
printf("Prompt %d from server: '", i);
fwrite(prompts[i].text, 1, prompts[i].length, stdout);
printf("'
");
printf("Please type response: ");
fgets(buf, sizeof(buf), stdin);
n = strlen(buf);
while (n > 0 && strchr("
", buf[n - 1]))
n--;
buf[n] = 0;
responses[i].text = strdup(buf);
responses[i].length = n;
printf("Response %d from user is '", i);
fwrite(responses[i].text, 1, responses[i].length, stdout);
printf("'
");
}
printf("Done. Sending keyboard-interactive responses to server now.
");
}
// ssh2.exe 10.11.0.33 aspect aspect /recordings/audio/LocStore1/EPro/M3-UserDef/
int main(int argc, char *argv[])
{
char filename[100]={0};
int k=0;
unsigned long hostaddr;
int sock, i, auth_pw = 0;
struct sockaddr_in sin;
const char *fingerprint;
char *userauthlist;
LIBSSH2_SESSION *session;
int rc;
LIBSSH2_SFTP *sftp_session;
LIBSSH2_SFTP_HANDLE *sftp_handle;
#ifdef WIN32
WSADATA wsadata;
WSAStartup(MAKEWORD(2,2), &wsadata);
#endif
if (argc > 1) {
hostaddr = inet_addr(argv[1]);
} else {
hostaddr = htonl(0x7F000001);
}
if(argc > 2) {
username = argv[2];
}
if(argc > 3) {
password = argv[3];
}
if(argc > 4) {
sftppath = argv[4];
}
rc = libssh2_init (0);
if (rc != 0) {
fprintf (stderr, "libssh2 initialization failed (%d)
", rc);
return 1;
}
/*
* The application code is responsible for creating the socket
* and establishing the connection
*/
sock = socket(AF_INET, SOCK_STREAM, 0);
sin.sin_family = AF_INET;
sin.sin_port = htons(22);
sin.sin_addr.s_addr = hostaddr;
if (connect(sock, (struct sockaddr*)(&sin),
sizeof(struct sockaddr_in)) != 0) {
fprintf(stderr, "failed to connect!
");
return -1;
}
/* Create a session instance
*/
session = libssh2_session_init();
if(!session)
return -1;
/* Since we have set non-blocking, tell libssh2 we are blocking */
libssh2_session_set_blocking(session, 1);
/* ... start it up. This will trade welcome banners, exchange keys,
* and setup crypto, compression, and MAC layers
*/
rc = libssh2_session_handshake(session, sock);
if(rc) {
fprintf(stderr, "Failure establishing SSH session: %d
", rc);
return -1;
}
/* At this point we havn't yet authenticated. The first thing to do
* is check the hostkey's fingerprint against our known hosts Your app
* may have it hard coded, may go to a file, may present it to the
* user, that's your call
*/
fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
fprintf(stderr, "Fingerprint: ");
for(i = 0; i < 20; i++) {
fprintf(stderr, "%02X ", (unsigned char)fingerprint[i]);
}
fprintf(stderr, "
");
/* check what authentication methods are available */
userauthlist = libssh2_userauth_list(session, username, strlen(username));
printf("Authentication methods: %s
", userauthlist);
if (strstr(userauthlist, "password") != NULL) {
auth_pw |= 1;
}
if (strstr(userauthlist, "keyboard-interactive") != NULL) {
auth_pw |= 2;
}
if (strstr(userauthlist, "publickey") != NULL) {
auth_pw |= 4;
}
/* if we got an 4. argument we set this option if supported */
if(argc > 5) {
if ((auth_pw & 1) && !strcasecmp(argv[5], "-p")) {
auth_pw = 1;
}
if ((auth_pw & 2) && !strcasecmp(argv[5], "-i")) {
auth_pw = 2;
}
if ((auth_pw & 4) && !strcasecmp(argv[5], "-k")) {
auth_pw = 4;
}
}
// printf("--------------------%d",auth_pw);
if (auth_pw & 1) {
printf("---------ddd-----------%d",auth_pw);
/* We could authenticate via password */
if (libssh2_userauth_password(session, username, password)) {
fprintf(stderr, "Authentication by password failed.
");
goto shutdown;
}
} else if (auth_pw & 2) {
/* Or via keyboard-interactive */
if (libssh2_userauth_keyboard_interactive(session, username, &kbd_callback) ) {
printf(" Authentication by keyboard-interactive failed!
");
goto shutdown;
} else {
printf(" Authentication by keyboard-interactive succeeded.
");
}
} else if (auth_pw & 4) {
/* Or by public key */
if (libssh2_userauth_publickey_fromfile(session, username, keyfile1, keyfile2, password)) {
printf(" Authentication by public key failed!
");
goto shutdown;
} else {
printf(" Authentication by public key succeeded.
");
}
} else {
printf("No supported authentication methods found!
");
goto shutdown;
}
fprintf(stderr, "libssh2_sftp_init()!
");
sftp_session = libssh2_sftp_init(session);
if (!sftp_session) {
fprintf(stderr, "Unable to init SFTP session
");
goto shutdown;
}
fprintf(stderr, "libssh2_sftp_open()!
");
for (;k<2;k++)
{
sprintf(filename,"%s/%d.txt",sftppath,k);
printf("---%s",filename);
/* Request a file via SFTP */
sftp_handle =
libssh2_sftp_open(sftp_session, filename, LIBSSH2_FXF_READ, 0);
if (!sftp_handle) {
fprintf(stderr, "Unable to open file with SFTP: %ld
",
libssh2_sftp_last_error(sftp_session));
goto shutdown;
}
fprintf(stderr, "libssh2_sftp_open() is done, now receive data!
");
do {
char mem[1024]={0};
/* loop until we fail */
fprintf(stderr, "libssh2_sftp_read()!
");
rc = libssh2_sftp_read(sftp_handle, mem, sizeof(mem));
// libssh2_sftp_write(sftp_handle,)
if (rc > 0) {
write(1, mem, rc);
} else {
break;
}
} while (1);
}
libssh2_sftp_close(sftp_handle);
libssh2_sftp_shutdown(sftp_session);
printf("-----------------------down");
shutdown:
libssh2_session_disconnect(session, "Normal Shutdown, Thank you for playing");
libssh2_session_free(session);
#ifdef WIN32
closesocket(sock);
#else
close(sock);
#endif fprintf(stderr, "all done
");
libssh2_exit();
getch();
return 0;
}