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//==========================================================================

//

//      include/tftp_support.h

//

//      TFTP support

//

//==========================================================================

//####BSDCOPYRIGHTBEGIN####

//

// -------------------------------------------

//

// Portions of this software may have been derived from OpenBSD or other sources,

// and are covered by the appropriate copyright disclaimers included herein.

//

// -------------------------------------------

//

//####BSDCOPYRIGHTEND####

//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):    gthomas

// Contributors: gthomas

// Date:         2000-04-06

// Purpose:      

// Description:  

//              

//

//####DESCRIPTIONEND####

//

//==========================================================================

#ifndef _TFTP_SUPPORT_H_

#define _TFTP_SUPPORT_H_

/*

 * File transfer modes

 */

#define TFTP_NETASCII   0              // Text files

#define TFTP_OCTET      1              // Binary files

/*

 * Errors

 */

// These initial 7 are passed across the net in "ERROR" packets.

#define TFTP_ENOTFOUND   1   /* file not found */

#define TFTP_EACCESS     2   /* access violation */

#define TFTP_ENOSPACE    3   /* disk full or allocation exceeded */

#define TFTP_EBADOP      4   /* illegal TFTP operation */

#define TFTP_EBADID      5   /* unknown transfer ID */

#define TFTP_EEXISTS     6   /* file already exists */

#define TFTP_ENOUSER     7   /* no such user */

// These extensions are return codes in our API, *never* passed on the net.

#define TFTP_TIMEOUT     8   /* operation timed out */

#define TFTP_NETERR      9   /* some sort of network error */

#define TFTP_INVALID    10   /* invalid parameter */

#define TFTP_PROTOCOL   11   /* protocol violation */

#define TFTP_TOOLARGE   12   /* file is larger than buffer */

/*

 * Server support

 */

struct tftpd_fileops {

    int (*open)(const char *, int);

    int (*close)(int);

    int (*write)(int, const void *, int);

    int (*read)(int, void *, int);

};

// Flags - passed to "open"

#ifndef O_RDONLY

#define O_RDONLY 1

#define O_WRONLY 2

#endif

__externC int tftpd_start(int, struct tftpd_fileops *);

__externC int tftpd_stop(int);

/*

 * Client support

 */

__externC int tftp_get(char *, struct sockaddr_in *, char *, int, int, int *);

__externC int tftp_put(char *, struct sockaddr_in *, char *, int, int, int *);

#define TFTP_TIMEOUT_PERIOD  5          // Seconds between retries

#define TFTP_TIMEOUT_MAX    50          // Max timeouts over all blocks

#define TFTP_RETRIES_MAX     5          // retries per block before giving up

#endif // _TFTP_SUPPORT_H_