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https://github.com/samba-team/samba.git
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fef617c31b
enough for us to pass locktest, but does not yet support lock timeouts and some of the other esoteric features. (This used to be commit 58a92abd88f190bc60894a68e0528e95ae33fe39)
69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
/*
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Unix SMB/CIFS implementation.
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POSIX NTVFS backend - read
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Copyright (C) Andrew Tridgell 2004
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "include/includes.h"
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#include "vfs_posix.h"
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/*
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read from a file
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*/
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NTSTATUS pvfs_read(struct ntvfs_module_context *ntvfs,
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struct smbsrv_request *req, union smb_read *rd)
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{
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struct pvfs_state *pvfs = ntvfs->private_data;
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ssize_t ret;
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struct pvfs_file *f;
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NTSTATUS status;
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if (rd->generic.level != RAW_READ_READX) {
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return NT_STATUS_NOT_SUPPORTED;
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}
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f = pvfs_find_fd(pvfs, req, rd->readx.in.fnum);
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if (!f) {
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return NT_STATUS_INVALID_HANDLE;
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}
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status = pvfs_check_lock(pvfs, f, req->smbpid,
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rd->readx.in.offset,
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rd->readx.in.maxcnt,
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READ_LOCK);
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if (!NT_STATUS_IS_OK(status)) {
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return status;
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}
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ret = pread(f->fd,
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rd->readx.out.data,
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rd->readx.in.maxcnt,
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rd->readx.in.offset);
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if (ret == -1) {
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return pvfs_map_errno(pvfs, errno);
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}
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rd->readx.out.nread = ret;
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rd->readx.out.remaining = 0; /* should fill this in? */
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rd->readx.out.compaction_mode = 0;
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return NT_STATUS_OK;
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}
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