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226 lines
6.5 KiB
C
226 lines
6.5 KiB
C
/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 1998-2006 The OpenLDAP Foundation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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/* Portions Copyright (c) 1996 Regents of the University of Michigan.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that this notice is preserved and that due credit is given
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* to the University of Michigan at Ann Arbor. The name of the University
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* may not be used to endorse or promote products derived from this
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* software without specific prior written permission. This software
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* is provided ``as is'' without express or implied warranty.
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*/
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/* ACKNOWLEDGEMENTS:
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* This work was originally developed by the University of Michigan
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* (as part of U-MICH LDAP).
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*/
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/*
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* sanity.c - perform sanity checks on the environment at startup time,
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* and report any errors before we disassociate from the controlling tty,
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* start up our threads, and do other stuff which makes it hard to give
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* feedback to the users.
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/stdlib.h>
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#include <ac/unistd.h>
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#include <ac/string.h>
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#include "slurp.h"
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#include "globals.h"
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#define FC_DIRBAD 1
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#define FC_DIRUNREAD 2
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#define FC_DIRUNWRITE 4
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#define FC_FILEBAD 8
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#define FC_FILEUNREAD 16
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#define FC_FILEUNWRITE 32
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/*
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* Forward declarations
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*/
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static unsigned int filecheck LDAP_P(( char * ));
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/*
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* Take a look around to catch any fatal errors. For example, make sure the
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* destination directory for our working files exists, check that all
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* pathnames make sense, and so on. Returns 0 is everything's ok,
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# -1 if there's something wrong which will keep us from functioning
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* correctly.
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*
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* We do all these checks at startup so we can print a reasonable error
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* message on stderr before we disassociate from the controlling tty. This
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* keeps some fatal error messages from "disappearing" into syslog.
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*/
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int
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sanity( void )
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{
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int err = 0;
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int rc;
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/*
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* Are there any replicas listed in the slapd config file?
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*/
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if ( sglob->replicas == NULL ) {
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fprintf( stderr, "No replicas in slapd.conf file \"%s\"!\n",
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sglob->slapd_configfile );
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err++;
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}
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/*
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* Make sure the directory housing the slapd replogfile exists, and
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* that the slapd replogfile is readable, if it exists.
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*/
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if ( sglob->slapd_replogfile == NULL ) {
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fprintf( stderr, "Fatal error: no \"replogfile\" "
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"slapd.conf directive given\n" );
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err++;
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} else {
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rc = filecheck( sglob->slapd_replogfile );
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if ( rc & FC_DIRBAD ) {
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fprintf( stderr, "Error: %s: directory specified in "
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"\"replogfile\" slapd.conf directive does not exist\n",
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sglob->slapd_replogfile );
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err++;
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} else if ( rc & FC_DIRUNREAD ) {
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fprintf( stderr, "Error: %s: directory specified in "
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"\"replogfile\" slapd.conf directive is not readable\n",
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sglob->slapd_replogfile );
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err++;
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} else if (!( rc & FC_FILEBAD) && ( rc & FC_FILEUNREAD )) {
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fprintf( stderr, "Error: %s: file specified in "
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"\"replogfile\" slapd.conf directive is not readable\n",
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sglob->slapd_replogfile );
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err++;
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}
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}
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/*
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* Make sure the directory for the slurpd replogfile is there, and
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* that the slurpd replogfile is readable and writable, if it exists.
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*/
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if ( sglob->slurpd_replogfile == NULL ) {
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fprintf( stderr, "Fatal error: no \"replogfile\" directive given\n" );
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err++;
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} else {
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rc = filecheck( sglob->slurpd_replogfile );
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if ( rc & FC_DIRBAD ) {
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fprintf( stderr, "Error: %s: slurpd \"replogfile\" "
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"directory does not exist\n",
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sglob->slurpd_replogfile );
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err++;
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} else if ( rc & FC_DIRUNREAD ) {
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fprintf( stderr, "Error: %s: slurpd \"replogfile\" "
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"directory not readable\n",
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sglob->slurpd_replogfile );
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err++;
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} else if ( !( rc & FC_FILEBAD ) && ( rc & FC_FILEUNREAD )) {
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fprintf( stderr, "Error: %s: slurpd \"replogfile\" not readable\n",
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sglob->slurpd_replogfile );
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err++;
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} else if ( !( rc & FC_FILEBAD ) && ( rc & FC_FILEUNWRITE )) {
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fprintf( stderr, "Error: %s: slurpd \"replogfile\" not writeable\n",
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sglob->slurpd_replogfile );
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err++;
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}
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}
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/*
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* Make sure that the directory for the slurpd status file is there, and
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* that the slurpd status file is writable, if it exists.
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*/
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rc = filecheck( sglob->slurpd_status_file );
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if ( rc & FC_DIRBAD ) {
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fprintf( stderr, "Error: %s: status directory does not exist\n",
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sglob->slurpd_status_file );
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err++;
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} else if ( rc & FC_DIRUNREAD ) {
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fprintf( stderr, "Error: %s: status directory not readable\n",
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sglob->slurpd_status_file );
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err++;
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} else if ( !( rc & FC_FILEBAD ) && ( rc & FC_FILEUNREAD )) {
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fprintf( stderr, "Error: %s: status file not readable\n",
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sglob->slurpd_status_file );
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err++;
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} else if ( !( rc & FC_FILEBAD ) && ( rc & FC_FILEUNWRITE )) {
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fprintf( stderr, "Error: %s: status file not writeable\n",
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sglob->slurpd_status_file );
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err++;
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}
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return ( err == 0 ? 0 : -1 );
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}
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/*
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* Check for the existence of the file and directory leading to the file.
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* Returns a bitmask which is the logical OR of the following flags:
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*
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* FC_DIRBAD: directory containing "f" does not exist.
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* FC_DIRUNREAD: directory containing "f" exists but is not readable.
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* FC_DIRUNWRITE: directory containing "f" exists but is not writable.
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* FC_FILEBAD: "f" does not exist.
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* FC_FILEUNREAD: "f" exists but is unreadable.
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* FC_FILEUNWRITE: "f" exists but is unwritable.
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*
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* The calling routine is responsible for determining which, if any, of
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* the returned flags is a problem for a particular file.
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*/
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static unsigned int
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filecheck(
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char *f
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)
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{
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char dir[ MAXPATHLEN ];
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char *p;
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unsigned int ret = 0;
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snprintf( dir, sizeof dir, "%s", f );
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p = strrchr( dir, LDAP_DIRSEP[0] );
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if ( p != NULL ) {
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*p = '\0';
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}
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if ( access( dir, F_OK ) < 0 ) {
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ret |= FC_DIRBAD;
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}
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if ( access( dir, R_OK ) < 0 ) {
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ret |= FC_DIRUNREAD;
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}
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if ( access( dir, W_OK ) < 0 ) {
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ret |= FC_DIRUNWRITE;
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}
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if ( access( f, F_OK ) < 0 ) {
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ret |= FC_FILEBAD;
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}
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if ( access( f, R_OK ) < 0 ) {
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ret |= FC_FILEUNREAD;
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}
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if ( access( f, W_OK ) < 0 ) {
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ret |= FC_FILEUNWRITE;
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}
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return ret;
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}
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