C++ (Cpp) smb_smb_readx Exemples

Exemple #1

int
smb_read(struct smb_share *ssp, u_int16_t fid, struct uio *uio,
	struct smb_cred *scred)
{
	size_t tsize, len, resid;
	int error = 0;
	int rx = (SMB_CAPS(SSTOVC(ssp)) & SMB_CAP_LARGE_READX);

	resid = 0;	/* XXX gcc */

	tsize = uio->uio_resid;
	while (tsize > 0) {
		len = tsize;
		if (rx)
		    error = smb_smb_readx(ssp, fid, &len, &resid, uio, scred);
		else
		    error = smb_smb_read(ssp, fid, &len, &resid, uio, scred);
		if (error)
			break;
		tsize -= resid;
		if (resid < len)
			break;
	}
	return error;
}

Exemple #2

Fichier : smb_smb.c Projet : edgar-pek/PerspicuOS

static __inline int
smb_smb_read(struct smb_share *ssp, u_int16_t fid,
	int *len, int *rresid, struct uio *uio, struct smb_cred *scred)
{
	struct smb_rq *rqp;
	struct mbchain *mbp;
	struct mdchain *mdp;
	u_int16_t resid, bc;
	u_int8_t wc;
	int error, rlen, blksz;

	if (SSTOVC(ssp)->vc_sopt.sv_caps & SMB_CAP_LARGE_READX)
		return (smb_smb_readx(ssp, fid, len, rresid, uio, scred));

	error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_READ, scred, &rqp);
	if (error)
		return error;

	blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 16;
	rlen = *len = min(blksz, *len);

	smb_rq_getrequest(rqp, &mbp);
	smb_rq_wstart(rqp);
	mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
	mb_put_uint16le(mbp, rlen);
	mb_put_uint32le(mbp, uio->uio_offset);
	mb_put_uint16le(mbp, min(uio->uio_resid, 0xffff));
	smb_rq_wend(rqp);
	smb_rq_bstart(rqp);
	smb_rq_bend(rqp);
	do {
		error = smb_rq_simple(rqp);
		if (error)
			break;
		smb_rq_getreply(rqp, &mdp);
		md_get_uint8(mdp, &wc);
		if (wc != 5) {
			error = EBADRPC;
			break;
		}
		md_get_uint16le(mdp, &resid);
		md_get_mem(mdp, NULL, 4 * 2, MB_MSYSTEM);
		md_get_uint16le(mdp, &bc);
		md_get_uint8(mdp, NULL);		/* ignore buffer type */
		md_get_uint16le(mdp, &resid);
		if (resid == 0) {
			*rresid = resid;
			break;
		}
		error = md_get_uio(mdp, uio, resid);
		if (error)
			break;
		*rresid = resid;
	} while(0);
	smb_rq_done(rqp);
	return error;
}