87 lines
1.7 KiB
C
87 lines
1.7 KiB
C
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/* @(#)diropen.c 1.2 12/12/02 Copyright 2011-2012 J. Schilling */
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/*
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* open a directory and call fdsetname() if needed
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*
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* Copyright (c) 2011-2012 J. Schilling
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*/
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/*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* See the file CDDL.Schily.txt in this distribution for details.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file CDDL.Schily.txt from this distribution.
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*/
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#include <schily/unistd.h>
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#include <schily/types.h>
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#include <schily/fcntl.h>
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#include <schily/errno.h>
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#include <schily/standard.h>
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#include <schily/schily.h>
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LOCAL int __diropen __PR((const char *name, int oflag));
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LOCAL int
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__diropen(name, oflag)
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const char *name;
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int oflag;
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{
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int f = open(name, oflag);
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#if O_DIRECTORY == 0
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struct stat sb;
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#endif
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if (f < 0)
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return (f);
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#if O_DIRECTORY == 0
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fstat(f, &sb);
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if (!S_ISDIR(sb.st_mode)) {
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close(f);
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seterrno(ENOTDIR);
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return (-1);
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}
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#endif
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#ifndef HAVE_FCHDIR
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if (fdsetname(f, name) < 0) {
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close(f);
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f = -1;
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}
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#endif
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return (f);
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}
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/*
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* Open for search only, which is sufficient for fchdir() and fstat().
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* This avoids permission errors when trying to open a non-readable dir.
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*/
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EXPORT int
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diropen(name)
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const char *name;
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{
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return (__diropen(name, O_SEARCH|O_DIRECTORY|O_NDELAY));
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}
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/*
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* Open for reading (e.g. needed for readdir())
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*/
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EXPORT int
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dirrdopen(name)
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const char *name;
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{
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return (__diropen(name, O_RDONLY|O_DIRECTORY|O_NDELAY));
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}
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EXPORT int
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dirclose(f)
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int f;
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{
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#ifndef HAVE_FCHDIR
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fdclosename(f);
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#endif
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return (close(f));
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}
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