Mercurial > gnulib
view lib/stripslash.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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/* stripslash.c -- remove redundant trailing slashes from a file name Copyright (C) 1990, 2001, 2003-2006, 2009-2019 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> #include "dirname.h" /* Remove trailing slashes from FILE. Return true if a trailing slash was removed. This is useful when using file name completion from a shell that adds a "/" after directory names (such as tcsh and bash), because on symlinks to directories, several system calls have different semantics according to whether a trailing slash is present. */ bool strip_trailing_slashes (char *file) { char *base = last_component (file); char *base_lim; bool had_slash; /* last_component returns "" for file system roots, but we need to turn "///" into "/". */ if (! *base) base = file; base_lim = base + base_len (base); had_slash = (*base_lim != '\0'); *base_lim = '\0'; return had_slash; }