/******************************************************************************/
/* */
/* X r d S y s X A t t r . c c */
/* */
/* (c) 2014 by the Board of Trustees of the Leland Stanford, Jr., University */
/* All Rights Reserved */
/* Produced by Andrew Hanushevsky for Stanford University under contract */
/* DE-AC02-76-SFO0515 with the Department of Energy */
/* */
/* This file is part of the XRootD software suite. */
/* */
/* XRootD is free software: you can redistribute it and/or modify it under */
/* the terms of the GNU Lesser General Public License as published by the */
/* Free Software Foundation, either version 3 of the License, or (at your */
/* option) any later version. */
/* */
/* XRootD 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 Lesser General Public */
/* License for more details. */
/* */
/* You should have received a copy of the GNU Lesser General Public License */
/* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */
/* COPYING (GPL license). If not, see . */
/* */
/* The copyright holder's institutional names and contributor's names may not */
/* be used to endorse or promote products derived from this software without */
/* specific prior written permission of the institution or contributor. */
/******************************************************************************/
#include
#include
#include
#include "XrdSys/XrdSysError.hh"
#include "XrdSys/XrdSysXAttr.hh"
/******************************************************************************/
/* C o p y */
/******************************************************************************/
int XrdSysXAttr::Copy(const char *iPath, int iFD, const char *oPath, int oFD,
const char *Aname)
{
char *bP;
int sz, rc = 0;
// Check if all attributes are to be copied. If so, do it.
//
if (!Aname)
{AList *aP = 0, *aNow;
char *Buff;
int maxSz;
// Get all of the attributes for the input
//
if ((maxSz = List(&aP, iPath, iFD, 1)) <= 0)
return maxSz == 0 || maxSz == -ENOTSUP;
// Allocate a buffer to hold the largest attribute value (plus some)
//
maxSz += 4096;
Buff = (char *)malloc(maxSz);
// Get each value and set it
//
aNow = aP;
while(aNow && (rc = Get(aNow->Name, Buff, maxSz, iPath, iFD)) >= 0
&& (rc = Set(aNow->Name, Buff, aNow->Vlen, oPath, oFD)) >= 0)
{aNow = aNow->Next;}
// Free up resources and return
//
Free(aP);
free(Buff);
return rc;
}
// First obtain the size of the attribute (if zero ignore it)
//
if ((sz = Get(Aname, 0, 0, iPath, iFD)) <= 0)
return (!sz || sz == -ENOTSUP ? 0 : sz);
// Obtain storage
//
if (!(bP = (char *)malloc(sz)))
{if (Say)
{char eBuff[512];
snprintf(eBuff, sizeof(eBuff), "copy attr %s from", Aname);
Say->Emsg("XAttr", ENOMEM, eBuff, iPath);
}
return -ENOMEM;
}
// Copy over any extended attributes
//
if ((rc = Get(Aname, bP, sz, iPath, iFD)) > 0)
{if ((rc = Set(Aname, bP, rc, oPath, oFD)) < 0 && rc == -ENOTSUP) rc = 0;}
else if (rc < 0 && rc == -ENOTSUP) rc = 0;
// All done
//
free(bP);
return rc;
}
/******************************************************************************/
/* S e t M s g R o u t e */
/******************************************************************************/
XrdSysError *XrdSysXAttr::SetMsgRoute(XrdSysError *errP)
{
XrdSysError *msgP = Say;
Say = errP;
return msgP;
}