#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>

#ifdef HAVE_NETINET_IN_H

# include <netinet/in.h>

#ifdef HAVE_SYS_SELECT_H

# include <sys/select.h>

# ifdef HAVE_UNISTD_H

#include <unistd.h>

#ifdef HAVE_ARPA_INET_H

# include <arpa/inet.h>

#ifdef HAVE_SYS_TIME_H

# include <sys/time.h>

#include <sys/types.h>

#include <fcntl.h>

#include <errno.h>

#include <stdio.h>

#include <ctype.h>

#ifdef HAVE_GETTIMEOFDAY

static long tvdiff(struct timeval newer, struct timeval older)

{

return (newer.tv_sec-older.tv_sec)*1000+

(newer.tv_usec-older.tv_usec)/1000;

}

static int waitsocket(int socket_fd, LIBSSH2_SESSION *session)

{

struct timeval timeout;

int rc;

fd_set fd;

fd_set *writefd = NULL;

fd_set *readfd = NULL;

int dir;

timeout.tv_sec = 10;

timeout.tv_usec = 0;

FD_ZERO(&fd);

FD_SET(socket_fd, &fd);

/* now make sure we wait in the correct direction */

dir = libssh2_session_block_directions(session);

if(dir & LIBSSH2_SESSION_BLOCK_INBOUND)

readfd = &fd;

if(dir & LIBSSH2_SESSION_BLOCK_OUTBOUND)

writefd = &fd;

rc = select(socket_fd + 1, readfd, writefd, NULL, &timeout);

return rc;

}

int main(int argc, char *argv[])

{

unsigned long hostaddr;

int sock, i, auth_pw = 1;

struct sockaddr_in sin;

const char *fingerprint;

LIBSSH2_SESSION *session;

const char *username = "username";

const char *password = "password";

const char *sftppath = "/tmp/TEST";

#ifdef HAVE_GETTIMEOFDAY

struct timeval start;

struct timeval end;

long time_ms;

int rc;

int total = 0;

int spin = 0;

LIBSSH2_SFTP *sftp_session;

LIBSSH2_SFTP_HANDLE *sftp_handle;

#ifdef WIN32

WSADATA wsadata;

int err;

err = WSAStartup(MAKEWORD(2, 0), &wsadata);

if(err != 0) {

fprintf(stderr, "WSAStartup failed with error: %d\n", err);

return 1;

}

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)\n", rc);

return 1;

}

/*

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!\n");

return -1;

}

/* Create a session instance */

session = libssh2_session_init();

if(!session)

return -1;

/* Since we have set non-blocking, tell libssh2 we are non-blocking */

libssh2_session_set_blocking(session, 0);

#ifdef HAVE_GETTIMEOFDAY

gettimeofday(&start, NULL);

/* ... start it up. This will trade welcome banners, exchange keys,

while((rc = libssh2_session_handshake(session, sock)) ==

LIBSSH2_ERROR_EAGAIN);

if(rc) {

fprintf(stderr, "Failure establishing SSH session: %d\n", rc);

return -1;

}

/* At this point we havn't yet authenticated. The first thing to do

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, "\n");

if(auth_pw) {

/* We could authenticate via password */

while((rc = libssh2_userauth_password(session, username, password))

== LIBSSH2_ERROR_EAGAIN);

if(rc) {

fprintf(stderr, "Authentication by password failed.\n");

goto shutdown;

}

}

else {

/* Or by public key */

while((rc =

libssh2_userauth_publickey_fromfile(session, username,

"/home/username/"

".ssh/id_rsa.pub",

"/home/username/"

".ssh/id_rsa",

password)) ==

LIBSSH2_ERROR_EAGAIN);

if(rc) {

fprintf(stderr, "\tAuthentication by public key failed\n");

goto shutdown;

}

}

#if 0

libssh2_trace(session, LIBSSH2_TRACE_CONN);

fprintf(stderr, "libssh2_sftp_init()!\n");

do {

sftp_session = libssh2_sftp_init(session);

if(!sftp_session) {

if(libssh2_session_last_errno(session) ==

LIBSSH2_ERROR_EAGAIN) {

fprintf(stderr, "non-blocking init\n");

waitsocket(sock, session); /* now we wait */

}

else {

fprintf(stderr, "Unable to init SFTP session\n");

goto shutdown;

}

}

} while(!sftp_session);

fprintf(stderr, "libssh2_sftp_open()!\n");

/* Request a file via SFTP */

do {

sftp_handle = libssh2_sftp_open(sftp_session, sftppath,

LIBSSH2_FXF_READ, 0);

if(!sftp_handle) {

if(libssh2_session_last_errno(session) != LIBSSH2_ERROR_EAGAIN) {

fprintf(stderr, "Unable to open file with SFTP\n");

goto shutdown;

}

else {

fprintf(stderr, "non-blocking open\n");

waitsocket(sock, session); /* now we wait */

}

}

} while(!sftp_handle);

fprintf(stderr, "libssh2_sftp_open() is done, now receive data!\n");

do {

char mem[1024*24];

/* loop until we fail */

while((rc = libssh2_sftp_read(sftp_handle, mem,

sizeof(mem))) == LIBSSH2_ERROR_EAGAIN) {

spin++;

waitsocket(sock, session); /* now we wait */

}

if(rc > 0) {

total += rc;

write(1, mem, rc);

}

else {

break;

}

} while(1);

#ifdef HAVE_GETTIMEOFDAY

gettimeofday(&end, NULL);

time_ms = tvdiff(end, start);

fprintf(stderr, "Got %d bytes in %ld ms = %.1f bytes/sec spin: %d\n",

total,

time_ms, total/(time_ms/1000.0), spin);

fprintf(stderr, "Got %d bytes spin: %d\n", total, spin);

libssh2_sftp_close(sftp_handle);

libssh2_sftp_shutdown(sftp_session);

shutdown:

fprintf(stderr, "libssh2_session_disconnect\n");

while(libssh2_session_disconnect(session,

"Normal Shutdown, Thank you") ==

LIBSSH2_ERROR_EAGAIN);

libssh2_session_free(session);

#ifdef WIN32

closesocket(sock);

close(sock);

fprintf(stderr, "all done\n");

libssh2_exit();

return 0;

}