mirror of
https://github.com/freebsd/freebsd-src
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dc36d6f9bb
Remove ancient SCCS tags from the tree, automated scripting, with two minor fixup to keep things compiling. All the common forms in the tree were removed with a perl script. Sponsored by: Netflix
113 lines
3.5 KiB
C
113 lines
3.5 KiB
C
/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. 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 provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* From: FreeBSD: head/lib/libc/gen/readdir.c 314436 2017-02-28 23:42:47Z imp
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*/
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#include "namespace.h"
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#include <sys/param.h>
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#define _WANT_FREEBSD11_DIRENT
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#include <dirent.h>
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#include <errno.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pthread.h>
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#include "un-namespace.h"
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#include "libc_private.h"
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#include "gen-private.h"
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#include "telldir.h"
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#include "gen-compat.h"
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static bool
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freebsd11_cvtdirent(struct freebsd11_dirent *dstdp, struct dirent *srcdp)
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{
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if (srcdp->d_namlen >= sizeof(dstdp->d_name))
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return (false);
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dstdp->d_type = srcdp->d_type;
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dstdp->d_namlen = srcdp->d_namlen;
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dstdp->d_fileno = srcdp->d_fileno; /* truncate */
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dstdp->d_reclen = FREEBSD11_DIRSIZ(dstdp);
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bcopy(srcdp->d_name, dstdp->d_name, dstdp->d_namlen);
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bzero(dstdp->d_name + dstdp->d_namlen,
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dstdp->d_reclen - offsetof(struct freebsd11_dirent, d_name) -
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dstdp->d_namlen);
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return (true);
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}
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struct freebsd11_dirent *
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freebsd11_readdir(DIR *dirp)
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{
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struct freebsd11_dirent *dstdp;
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struct dirent *dp;
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if (__isthreaded)
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_pthread_mutex_lock(&dirp->dd_lock);
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dp = _readdir_unlocked(dirp, RDU_SKIP);
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if (dp != NULL) {
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if (dirp->dd_compat_de == NULL)
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dirp->dd_compat_de = malloc(sizeof(struct
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freebsd11_dirent));
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if (freebsd11_cvtdirent(dirp->dd_compat_de, dp))
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dstdp = dirp->dd_compat_de;
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else
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dstdp = NULL;
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} else
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dstdp = NULL;
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if (__isthreaded)
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_pthread_mutex_unlock(&dirp->dd_lock);
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return (dstdp);
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}
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int
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freebsd11_readdir_r(DIR *dirp, struct freebsd11_dirent *entry,
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struct freebsd11_dirent **result)
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{
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struct dirent xentry, *xresult;
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int error;
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error = __readdir_r(dirp, &xentry, &xresult);
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if (error != 0)
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return (error);
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if (xresult != NULL) {
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if (freebsd11_cvtdirent(entry, &xentry))
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*result = entry;
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else /* should not happen due to RDU_SHORT */
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*result = NULL;
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} else
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*result = NULL;
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return (0);
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}
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__sym_compat(readdir, freebsd11_readdir, FBSD_1.0);
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__sym_compat(readdir_r, freebsd11_readdir_r, FBSD_1.0);
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