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/*
* $Id: asp_cmdreply.c,v 1.5 2009-10-13 22:55:37 didg Exp $
*
* Copyright (c) 1990,1991 Regents of The University of Michigan.
* All Rights Reserved.
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appears in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation, and that the name of The University
* of Michigan not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. This software is supplied as is without expressed or
* implied warranties of any kind.
*
* Research Systems Unix Group
* The University of Michigan
* c/o Mike Clark
* 535 W. William Street
* Ann Arbor, Michigan
* +1-313-763-0525
* netatalk@itd.umich.edu
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
#include <string.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/socket.h>
#include <atalk/atp.h>
#include <atalk/asp.h>
#if defined(BSD) || defined(BSD4_3)
#define memmove(a, b, n) bcopy((b), (a), (n))
#endif /* BSD || BSD4_3 */
int asp_cmdreply(ASP asp, int result)
{
struct iovec iov[ ASP_MAXPACKETS ];
struct atp_block atpb;
int iovcnt, buflen;
char *buf;
/* unpack data into a format that atp likes. it needs to get
* 4-byte headers prepended before each ASP_CMDSIZ chunk. */
buf = (char *) asp->data;
buflen = asp->datalen;
asp->write_count += buflen;
result = htonl(result);
iovcnt = 0;
do {
iov[ iovcnt ].iov_base = buf;
memmove(buf + ASP_HDRSIZ, buf, buflen);
if ( iovcnt == 0 ) {
memcpy( iov[ iovcnt ].iov_base, &result, ASP_HDRSIZ );
} else {
memset( iov[ iovcnt ].iov_base, 0, ASP_HDRSIZ );
}
if ( buflen > ASP_CMDSIZ ) {
buf += ASP_CMDMAXSIZ;
buflen -= ASP_CMDSIZ;
iov[ iovcnt ].iov_len = ASP_CMDMAXSIZ;
} else {
iov[ iovcnt ].iov_len = buflen + ASP_HDRSIZ;
buflen = 0;
}
iovcnt++;
} while ( buflen > 0 );
atpb.atp_saddr = &asp->asp_sat;
atpb.atp_sresiov = iov;
atpb.atp_sresiovcnt = iovcnt;
if ( atp_sresp( asp->asp_atp, &atpb ) < 0 ) {
return( -1 );
}
asp->asp_seq++;
return( 0 );
}
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