libssh2_sftp_init ... I don't get it.

Hi everyone,

I'm trying to get this code to run but libssh2_sftp_init always fails, and I
don't have the any idea why. Could you help me

TIA
may

/data/work > more sftptest.c
#include <libssh2.h>
#include <libssh2_sftp.h>
 

#include <sys/socket.h>
#include <netinet/in.h>
#include <unistd.h>
#include <arpa/inet.h>
 
#include <sys/types.h>
#include <fcntl.h>
#include <errno.h>
#include <stdio.h>
#include <ctype.h>
 
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 *loclfile="FBMON.ZIP";
    const char *sftppath="/eclipse/";
    int rc;
    FILE *local;
    LIBSSH2_SFTP *sftp_session;
    LIBSSH2_SFTP_HANDLE *sftp_handle;
    char mem[1024];
    size_t nread;
    char *ptr;

 
        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)
    {
           loclfile = argv[4];
        }
        if(argc > 5)
    {
           sftppath = argv[5];
        }
 
    rc = libssh2_init (0);

    if (rc != 0)
    {
        fprintf (stderr, "libssh2 initialization failed (%d)\n", rc);
        return 1;
    }
 
    local = fopen(loclfile, "wb");
    if (!local)
    {
        printf("Can't local file %s\n", loclfile);
        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!\n");
           return -1;
        }
 
    session = libssh2_session_init();

    if(!session)
        return -1;
 
    libssh2_session_set_blocking(session, 1);

    rc = libssh2_session_startup(session, sock);

    if(rc)
    {
        fprintf(stderr, "Failure establishing SSH session: %d\n", rc);
        return -1;
    }
 

    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);

    printf("Fingerprint: ");
    for(i = 0; i < 20; i++)
    {
        printf("%02X ", (unsigned char)fingerprint[i]);
    }
    printf("\n");
 
    if (libssh2_userauth_password(session, username, password))
    {
        fprintf(stderr, "Authentication OK\n");
    }
    else
    {
    fprintf(stderr, "Authentication by password failed\n");
        goto shutdown;
    }
 
    fprintf(stderr, "libssh2_sftp_init()!\n");

    sftp_session = libssh2_sftp_init(session);
 
    if (!sftp_session)
    {
        fprintf(stderr, "Unable to init SFTP session\n");
    
        goto shutdown;
    }
 
    fprintf(stderr, "libssh2_sftp_open()!\n");

    /* Request a file via SFTP */
    sftp_handle = libssh2_sftp_open(sftp_session, sftppath,LIBSSH2_FXF_READ,0);
 
    if (!sftp_handle)
    {
        fprintf(stderr, "Unable to open file with SFTP\n");
        goto shutdown;
    }
    fprintf(stderr, "libssh2_sftp_open() is done, now receive data!\n");

    do {
        char mem[1024];
 
        /* loop until we fail */
        fprintf(stderr, "libssh2_sftp_read()!\n");

        rc = libssh2_sftp_read(sftp_handle, mem, sizeof(mem));

        if (rc > 0)
    {
            write(1, mem, rc);
        }
    else
    {
            break;
        }
    } while (1);
 
    libssh2_sftp_close(sftp_handle);

    libssh2_sftp_shutdown(sftp_session);

 
  shutdown:
 
    libssh2_session_disconnect(session, "Normal Shutdown, Thank you for
playing");

    libssh2_session_free(session);

    close(sock);

    fprintf(stderr, "all done\n");
 
    libssh2_exit();

 
    return 0;
}

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Received on 2010-10-11