/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ #pragma once /*** This file is part of systemd. Copyright 2010 Lennart Poettering systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ #include <sys/types.h> #include <inttypes.h> /* What characters are special in the shell? */ /* must be escaped outside and inside double-quotes */ #define SHELL_NEED_ESCAPE "\"\\`$" /* can be escaped or double-quoted */ #define SHELL_NEED_QUOTES SHELL_NEED_ESCAPE GLOB_CHARS "'()<>|&;" typedef enum UnescapeFlags { UNESCAPE_RELAX = 1, } UnescapeFlags; char *cescape(const char *s); size_t cescape_char(char c, char *buf); int cunescape(const char *s, UnescapeFlags flags, char **ret); int cunescape_length(const char *s, size_t length, UnescapeFlags flags, char **ret); int cunescape_length_with_prefix(const char *s, size_t length, const char *prefix, UnescapeFlags flags, char **ret); int cunescape_one(const char *p, size_t length, char *ret, uint32_t *ret_unicode); char *xescape(const char *s, const char *bad); char *shell_escape(const char *s, const char *bad); char *shell_maybe_quote(const char *s);