Mercurial > gnulib
view lib/closedir.c @ 40214:452ab00796c7
Fix undefined behaviour.
* lib/bitrotate.h (rotl16, rotr16, rotl8, rotr8): Case x to
'unsigned int', to avoid shift operations on 'int'.
* lib/xmemdup0.c (xmemdup0): Don't invoke memcpy with a zero size.
* tests/test-count-leading-zeros.c (main): Use a random number that has
as many bits as TYPE, not only 2*15 or 2*31 bits.
* tests/test-count-trailing-zeros.c (main): Likewise.
* tests/test-count-one-bits.c (main): Likewise.
* tests/test-memmem.c: Don't include "null-ptr.h".
(main): Use zerosize_ptr() instead of null_ptr().
* modules/memmem-tests (Files): Remove tests/null-ptr.h.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 09 Mar 2019 20:32:25 +0100 |
parents | b06060465f09 |
children |
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/* Stop reading the entries of a directory. Copyright (C) 2006-2019 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ #include <config.h> /* Specification. */ #include <dirent.h> #if REPLACE_FCHDIR # include <unistd.h> #endif #if HAVE_CLOSEDIR /* Override closedir(), to keep track of the open file descriptors. Needed because there is a function dirfd(). */ #else # include <stdlib.h> # include "dirent-private.h" #endif int closedir (DIR *dirp) { # if REPLACE_FCHDIR || REPLACE_DIRFD int fd = dirfd (dirp); # endif int retval; #if HAVE_CLOSEDIR # undef closedir retval = closedir (dirp); # ifdef __KLIBC__ if (!retval) _gl_unregister_dirp_fd (fd); # endif #else if (dirp->current != INVALID_HANDLE_VALUE) FindClose (dirp->current); free (dirp); retval = 0; #endif #if REPLACE_FCHDIR if (retval >= 0) _gl_unregister_fd (fd); #endif return retval; }