1*aa772005SRobert Watson /*- 2*aa772005SRobert Watson * Copyright (c) 2012 The FreeBSD Foundation 3*aa772005SRobert Watson * All rights reserved. 4*aa772005SRobert Watson * 5*aa772005SRobert Watson * This software was developed by Pawel Jakub Dawidek under sponsorship from 6*aa772005SRobert Watson * the FreeBSD Foundation. 7*aa772005SRobert Watson * 8*aa772005SRobert Watson * Redistribution and use in source and binary forms, with or without 9*aa772005SRobert Watson * modification, are permitted provided that the following conditions 10*aa772005SRobert Watson * are met: 11*aa772005SRobert Watson * 1. Redistributions of source code must retain the above copyright 12*aa772005SRobert Watson * notice, this list of conditions and the following disclaimer. 13*aa772005SRobert Watson * 2. Redistributions in binary form must reproduce the above copyright 14*aa772005SRobert Watson * notice, this list of conditions and the following disclaimer in the 15*aa772005SRobert Watson * documentation and/or other materials provided with the distribution. 16*aa772005SRobert Watson * 17*aa772005SRobert Watson * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 18*aa772005SRobert Watson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19*aa772005SRobert Watson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20*aa772005SRobert Watson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 21*aa772005SRobert Watson * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22*aa772005SRobert Watson * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23*aa772005SRobert Watson * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24*aa772005SRobert Watson * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25*aa772005SRobert Watson * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26*aa772005SRobert Watson * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27*aa772005SRobert Watson * SUCH DAMAGE. 28*aa772005SRobert Watson * 29*aa772005SRobert Watson * $P4: //depot/projects/trustedbsd/openbsm/bin/auditdistd/faccessat.h#1 $ 30*aa772005SRobert Watson */ 31*aa772005SRobert Watson 32*aa772005SRobert Watson #ifndef _FACCESSAT_H_ 33*aa772005SRobert Watson #define _FACCESSAT_H_ 34*aa772005SRobert Watson 35*aa772005SRobert Watson #include <unistd.h> 36*aa772005SRobert Watson 37*aa772005SRobert Watson #define AT_EACCESS 0x01 38*aa772005SRobert Watson 39*aa772005SRobert Watson static int 40*aa772005SRobert Watson faccessat(int fd, const char *path, int mode, int flag) 41*aa772005SRobert Watson { 42*aa772005SRobert Watson int cfd, error, ret; 43*aa772005SRobert Watson 44*aa772005SRobert Watson if (flag == AT_EACCESS) { 45*aa772005SRobert Watson errno = EINVAL; 46*aa772005SRobert Watson return (-1); 47*aa772005SRobert Watson } 48*aa772005SRobert Watson 49*aa772005SRobert Watson cfd = open(".", O_RDONLY | O_DIRECTORY); 50*aa772005SRobert Watson if (cfd == -1) 51*aa772005SRobert Watson return (-1); 52*aa772005SRobert Watson 53*aa772005SRobert Watson if (fchdir(fd) == -1) { 54*aa772005SRobert Watson error = errno; 55*aa772005SRobert Watson (void)close(cfd); 56*aa772005SRobert Watson errno = error; 57*aa772005SRobert Watson return (-1); 58*aa772005SRobert Watson } 59*aa772005SRobert Watson 60*aa772005SRobert Watson ret = access(path, mode); 61*aa772005SRobert Watson 62*aa772005SRobert Watson error = errno; 63*aa772005SRobert Watson (void)fchdir(cfd); 64*aa772005SRobert Watson (void)close(cfd); 65*aa772005SRobert Watson errno = error; 66*aa772005SRobert Watson return (ret); 67*aa772005SRobert Watson } 68*aa772005SRobert Watson 69*aa772005SRobert Watson #endif /* !_FACCESSAT_H_ */ 70