mirror of
https://github.com/VectorCamp/vectorscan.git
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90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
/*
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* Copyright (c) 2015-2016, Intel Corporation
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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 are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * 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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* * Neither the name of Intel Corporation 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 COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND 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 COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef EXPRESSION_PATH_H
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#define EXPRESSION_PATH_H
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#include "ue2common.h"
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#include <cerrno>
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#include <cstring>
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#include <iostream>
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#include <string>
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#include <vector>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <libgen.h>
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//
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// Utility functions
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//
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/**
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* Given a path to a signature file, infer the path of the pcre directory.
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*/
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static inline
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std::string inferExpressionPath(const std::string &sigFile) {
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// POSIX variant.
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// dirname() may modify its argument, so we must make a copy.
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std::vector<char> path(sigFile.begin(), sigFile.end());
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path.push_back(0); // ensure null termination.
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std::string rv = dirname(path.data());
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rv += "/../pcre";
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return rv;
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}
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static inline
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bool isDir(const std::string &filename) {
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struct stat s;
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if (stat(filename.c_str(), &s) == -1) {
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std::cerr << "stat: " << strerror(errno) << std::endl;
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return false;
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}
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return (S_IFDIR & s.st_mode);
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}
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static inline
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bool isFile(const std::string &filename) {
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struct stat s;
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if (stat(filename.c_str(), &s) == -1) {
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std::cerr << "stat: " << strerror(errno) << std::endl;
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return false;
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}
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return (S_IFREG & s.st_mode);
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}
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#endif /* EXPRESSION_PATH_H */
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