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/*
Unix SMB/Netbios implementation.
Version 1.9.
error packet handling
Copyright (C) Andrew Tridgell 1992-1998
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
extern int DEBUGLEVEL;
/* these can be set by some functions to override the error codes */
int unix_ERR_class=SMB_SUCCESS;
int unix_ERR_code=0;
/****************************************************************************
create an error packet from a cached error.
****************************************************************************/
int cached_error_packet(char *inbuf,char *outbuf,files_struct *fsp,int line)
{
write_bmpx_struct *wbmpx = fsp->wbmpx_ptr;
int32 eclass = wbmpx->wr_errclass;
int32 err = wbmpx->wr_error;
/* We can now delete the auxiliary struct */
free((char *)wbmpx);
fsp->wbmpx_ptr = NULL;
return error_packet(inbuf,outbuf,eclass,err,line);
}
struct
{
int unixerror;
int smbclass;
int smbcode;
} unix_smb_errmap[] =
{
{EPERM,ERRDOS,ERRnoaccess},
{EACCES,ERRDOS,ERRnoaccess},
{ENOENT,ERRDOS,ERRbadfile},
{ENOTDIR,ERRDOS,ERRbadpath},
{EIO,ERRHRD,ERRgeneral},
{EBADF,ERRSRV,ERRsrverror},
{EINVAL,ERRSRV,ERRsrverror},
{EEXIST,ERRDOS,ERRfilexists},
{ENFILE,ERRDOS,ERRnofids},
{EMFILE,ERRDOS,ERRnofids},
{ENOSPC,ERRHRD,ERRdiskfull},
#ifdef EDQUOT
{EDQUOT,ERRHRD,ERRdiskfull},
#endif
#ifdef ENOTEMPTY
{ENOTEMPTY,ERRDOS,ERRnoaccess},
#endif
#ifdef EXDEV
{EXDEV,ERRDOS,ERRdiffdevice},
#endif
{EROFS,ERRHRD,ERRnowrite},
{0,0,0}
};
/****************************************************************************
create an error packet from errno
****************************************************************************/
int unix_error_packet(char *inbuf,char *outbuf,int def_class,uint32 def_code,int line)
{
int eclass=def_class;
int ecode=def_code;
int i=0;
if (unix_ERR_class != SMB_SUCCESS)
{
eclass = unix_ERR_class;
ecode = unix_ERR_code;
unix_ERR_class = SMB_SUCCESS;
unix_ERR_code = 0;
}
else
{
while (unix_smb_errmap[i].smbclass != 0)
{
if (unix_smb_errmap[i].unixerror == errno)
{
eclass = unix_smb_errmap[i].smbclass;
ecode = unix_smb_errmap[i].smbcode;
break;
}
i++;
}
}
return(error_packet(inbuf,outbuf,eclass,ecode,line));
}
/****************************************************************************
create an error packet. Normally called using the ERROR() macro
****************************************************************************/
int error_packet(char *inbuf,char *outbuf,int error_class,uint32 error_code,int line)
{
int outsize = set_message(outbuf,0,0,True);
int cmd = CVAL(inbuf,smb_com);
int flgs2 = SVAL(outbuf,smb_flg2);
if (errno != 0)
DEBUG(3,("error string = %s\n",strerror(errno)));
if ((flgs2 & FLAGS2_32_BIT_ERROR_CODES) == FLAGS2_32_BIT_ERROR_CODES)
{
SIVAL(outbuf,smb_rcls,error_code);
DEBUG( 3, ( "32 bit error packet at line %d cmd=%d (%s) eclass=%08x [%s]\n",
line, cmd, smb_fn_name(cmd), error_code, smb_errstr(outbuf) ) );
}
else
{
CVAL(outbuf,smb_rcls) = error_class;
SSVAL(outbuf,smb_err,error_code);
DEBUG( 3, ( "error packet at line %d cmd=%d (%s) eclass=%d ecode=%d\n",
line,
(int)CVAL(inbuf,smb_com),
smb_fn_name(CVAL(inbuf,smb_com)),
error_class,
error_code ) );
}
return(outsize);
}
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