/*
* NFSv4 ACL Code
* Write the who entry in the nfs4 ace. Who is a user supplied buffer
* containing a named who entry (null terminated string) if type is
* set to NFS4_ACL_WHO_NAMED. Otherwise, the who buffer is not used.
* The user supplied who buffer must be freed by the caller.
*
* This code allocates the who buffer used in the ace. This must be freed
* upon ace removal by the ace_remove or acl_free.
*
* Copyright (c) 2002, 2003, 2006 The Regents of the University of Michigan.
* All rights reserved.
*
* Nathaniel Gallaher <ngallahe@umich.edu>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include "libacl_nfs4.h"
int acl_nfs4_set_who(struct nfs4_ace* ace, int type, char* who)
{
char *iwho = NULL;
int wholen;
if (ace == NULL)
goto inval_failed;
switch (type) {
case NFS4_ACL_WHO_NAMED:
if (who == NULL) {
fprintf(stderr, "ERROR: named user seems to have no name.\n");
goto inval_failed;
}
iwho = who;
break;
case NFS4_ACL_WHO_OWNER:
iwho = NFS4_ACL_WHO_OWNER_STRING;
break;
case NFS4_ACL_WHO_GROUP:
iwho = NFS4_ACL_WHO_GROUP_STRING;
break;
case NFS4_ACL_WHO_EVERYONE:
iwho = NFS4_ACL_WHO_EVERYONE_STRING;
break;
default:
goto inval_failed;
}
wholen = strlen(iwho);
if (wholen < 1)
goto inval_failed;
memset(ace->who, '\0', NFS4_MAX_PRINCIPALSIZE);
strcpy(ace->who, iwho);
ace->whotype = type;
return 0;
inval_failed:
errno = EINVAL;
return -1;
}