173 lines
3.6 KiB
C
173 lines
3.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) International Business Machines Corp., 2001
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* Copyright (c) 2013 Cyril Hrubis <chrubis@suse.cz>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef GETDENTS_H
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#define GETDENTS_H
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#include <stdint.h>
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#include "config.h"
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#include "lapi/syscalls.h"
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#if HAVE_GETDENTS || HAVE_GETDENTS64
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#include <unistd.h>
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#endif
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/*
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* See fs/compat.c struct compat_linux_dirent
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*/
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struct linux_dirent {
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unsigned long d_ino;
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unsigned long d_off;
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unsigned short d_reclen;
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char d_name[];
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};
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static inline int
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linux_getdents(unsigned int fd, struct linux_dirent *dirp, unsigned int size)
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{
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return tst_syscall(__NR_getdents, fd, dirp, size);
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}
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struct linux_dirent64 {
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uint64_t d_ino;
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int64_t d_off;
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unsigned short d_reclen;
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unsigned char d_type;
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char d_name[];
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};
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static inline int
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linux_getdents64(unsigned int fd, struct linux_dirent64 *dirp64, unsigned int size)
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{
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return tst_syscall(__NR_getdents64, fd, dirp64, size);
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}
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static inline size_t
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tst_dirp_size(void)
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{
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switch (tst_variant) {
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case 0:
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return sizeof(struct linux_dirent);
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case 1:
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return sizeof(struct linux_dirent64);
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#if HAVE_GETDENTS
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case 2:
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return sizeof(struct dirent);
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#endif
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#if HAVE_GETDENTS64
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case 3:
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return sizeof(struct dirent64);
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#endif
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}
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return 0;
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}
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static inline const char *
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tst_dirp_name(void *dirp)
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{
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switch (tst_variant) {
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case 0:
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return ((struct linux_dirent *)dirp)->d_name;
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case 1:
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return ((struct linux_dirent64 *)dirp)->d_name;
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#if HAVE_GETDENTS
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case 2:
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return ((struct dirent *)dirp)->d_name;
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#endif
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#if HAVE_GETDENTS64
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case 3:
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return ((struct dirent64 *)dirp)->d_name;
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#endif
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}
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return NULL;
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}
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static inline size_t
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tst_dirp_reclen(void *dirp)
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{
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switch (tst_variant) {
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case 0:
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return ((struct linux_dirent *)dirp)->d_reclen;
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case 1:
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return ((struct linux_dirent64 *)dirp)->d_reclen;
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#if HAVE_GETDENTS
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case 2:
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return ((struct dirent *)dirp)->d_reclen;
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#endif
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#if HAVE_GETDENTS64
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case 3:
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return ((struct dirent64 *)dirp)->d_reclen;
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#endif
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}
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return 0;
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}
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static inline int
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tst_getdents(int fd, void *dirp, unsigned int size)
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{
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switch (tst_variant) {
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case 0:
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return linux_getdents(fd, dirp, size);
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case 1:
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return linux_getdents64(fd, dirp, size);
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#if HAVE_GETDENTS
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case 2:
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return getdents(fd, dirp, size);
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#endif
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#if HAVE_GETDENTS64
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case 3:
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return getdents64(fd, dirp, size);
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#endif
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}
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return -1;
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}
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static inline void
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getdents_info(void)
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{
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switch (tst_variant) {
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case 0:
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tst_res(TINFO, "Testing the SYS_getdents syscall");
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break;
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case 1:
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tst_res(TINFO, "Testing the SYS_getdents64 syscall");
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break;
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case 2:
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#if HAVE_GETDENTS
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tst_res(TINFO, "Testing libc getdents()");
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#else
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tst_brk(TCONF, "libc getdents() is not implemented");
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#endif
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break;
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case 3:
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#if HAVE_GETDENTS64
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tst_res(TINFO, "Testing libc getdents64()");
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#else
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tst_brk(TCONF, "libc getdents64() is not implemented");
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#endif
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break;
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}
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}
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#define TEST_VARIANTS 4
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#endif /* GETDENTS_H */
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