Mercurial > gnulib
view lib/rewinddir.c @ 40212:8da9577294da
unistr/*, uniconv/*: Fix undefined behaviour.
Reported by Jeffrey Walton <noloader@gmail.com>.
* lib/unistr/u-cpy.h (FUNC): Don't invoke memcpy with a zero size.
* lib/unistr/u-cpy-alloc.h (FUNC): Likewise.
* lib/uniconv/u8-conv-from-enc.c (u8_conv_from_encoding): Likewise.
* lib/uniconv/u8-conv-to-enc.c (u8_conv_to_encoding): Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 09 Mar 2019 00:01:47 +0100 |
parents | b06060465f09 |
children |
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/* Restart reading the entries of a directory from the beginning. Copyright (C) 2011-2019 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> #include <errno.h> #include "dirent-private.h" void rewinddir (DIR *dirp) { /* Like in closedir(). */ if (dirp->current != INVALID_HANDLE_VALUE) FindClose (dirp->current); /* Like in opendir(). */ dirp->status = -1; dirp->current = FindFirstFile (dirp->dir_name_mask, &dirp->entry); if (dirp->current == INVALID_HANDLE_VALUE) { switch (GetLastError ()) { case ERROR_FILE_NOT_FOUND: dirp->status = -2; break; default: /* Save the error code for the next readdir() call. */ dirp->status = ENOENT; break; } } }