Sample code for 30+ languages & platforms
C

SFTP Read Text File

See more SFTP Examples

Demonstrates how to open a text file on the SSH server and read text.

Chilkat C Downloads

C
#include <C_CkSFtp.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkSFtp sftp;
    const char *hostname;
    int port;
    const char *handle;
    const char *sText;

    success = FALSE;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    sftp = CkSFtp_Create();

    // Set some timeouts, in milliseconds:
    CkSFtp_putConnectTimeoutMs(sftp,5000);
    CkSFtp_putIdleTimeoutMs(sftp,15000);

    // Connect to the SSH server.  
    // The standard SSH port = 22
    // The hostname may be a hostname or IP address.
    hostname = "sftp.example.com";
    port = 22;
    success = CkSFtp_Connect(sftp,hostname,port);
    if (success != TRUE) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_Dispose(sftp);
        return;
    }

    // Authenticate with the SSH server.  Chilkat SFTP supports
    // both password-based authenication as well as public-key
    // authentication.  This example uses password authenication.
    success = CkSFtp_AuthenticatePw(sftp,"myLogin","myPassword");
    if (success != TRUE) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_Dispose(sftp);
        return;
    }

    // After authenticating, the SFTP subsystem must be initialized:
    success = CkSFtp_InitializeSftp(sftp);
    if (success != TRUE) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_Dispose(sftp);
        return;
    }

    // Open a file for reading.

    handle = CkSFtp_openFile(sftp,"myTest.txt","readOnly","openExisting");
    if (CkSFtp_getLastMethodSuccess(sftp) != TRUE) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_Dispose(sftp);
        return;
    }

    // Assume the file we are reading contains the following text:
    // abcdefghijklmnopqrstuvwxyz1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ
    // (in ANSI format -- i.e. one byte per char).

    // Read 26 bytes:

    sText = CkSFtp_readFileText(sftp,handle,26,"ansi");
    if (CkSFtp_getLastMethodSuccess(sftp) != TRUE) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_Dispose(sftp);
        return;
    }

    // Should print "abcdefghijklmnopqrstuvwxyz"
    printf("%s\n",sText);

    // Read the next 10 bytes.
    sText = CkSFtp_readFileText(sftp,handle,10,"ansi");
    if (CkSFtp_getLastMethodSuccess(sftp) != TRUE) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_Dispose(sftp);
        return;
    }

    // Should print "1234567890"
    printf("%s\n",sText);

    // Read the next 26 bytes.
    sText = CkSFtp_readFileText(sftp,handle,26,"ansi");
    if (CkSFtp_getLastMethodSuccess(sftp) != TRUE) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_Dispose(sftp);
        return;
    }

    // Should print "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    printf("%s\n",sText);

    // Close the file.
    success = CkSFtp_CloseHandle(sftp,handle);
    if (success != TRUE) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_Dispose(sftp);
        return;
    }

    printf("Success.\n");


    CkSFtp_Dispose(sftp);

    }