dist/smbfs/lib/smb/file.c

   1 /*
   2  * Copyright (c) 2000, Boris Popov
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *    This product includes software developed by Boris Popov.
  16  * 4. Neither the name of the author nor the names of any co-contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * from: Id: file.c,v 1.2 2001/04/16 04:33:01 bp Exp
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __RCSID("$NetBSD: file.c,v 1.3 2006/05/10 06:24:02 skrll Exp $");
  37
  38 #include <sys/param.h>
  39 #include <sys/sysctl.h>
  40 #include <sys/ioctl.h>
  41 #include <sys/time.h>
  42 #include <sys/mount.h>
  43 #include <fcntl.h>
  44 #include <ctype.h>
  45 #include <errno.h>
  46 #include <stdio.h>
  47 #include <string.h>
  48 #include <stdlib.h>
  49 #include <pwd.h>
  50 #include <grp.h>
  51 #include <unistd.h>
  52
  53 #include <netsmb/smb_lib.h>
  54 #include <netsmb/smb_conn.h>
  55 #include <cflib.h>
  56
  57 #include "smb_kernelops.h"
  58
  59 int
  60 smb_read(struct smb_ctx *ctx, smbfh fh, off_t offset, size_t count, char *dst)
  61 {
  62         struct smbioc_rw rwrq;
  63
  64         rwrq.ioc_fh = fh;
  65         rwrq.ioc_base = dst;
  66         rwrq.ioc_cnt = count;
  67         rwrq.ioc_offset = offset;
  68         if (smb_kops.ko_ioctl(ctx->ct_fd, SMBIOC_READ, &rwrq) == -1)
  69                 return -1;
  70         return rwrq.ioc_cnt;
  71 }
  72
  73 int
  74 smb_write(struct smb_ctx *ctx, smbfh fh, off_t offset, size_t count,
  75         const char *src)
  76 {
  77         struct smbioc_rw rwrq;
  78
  79         rwrq.ioc_fh = fh;
  80         rwrq.ioc_base = __UNCONST(src);
  81         rwrq.ioc_cnt = count;
  82         rwrq.ioc_offset = offset;
  83         if (smb_kops.ko_ioctl(ctx->ct_fd, SMBIOC_WRITE, &rwrq) == -1)
  84                 return -1;
  85         return rwrq.ioc_cnt;
  86 }