1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/*
* Copyright (c) 2015-2016, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef EXPRESSION_PATH_H
#define EXPRESSION_PATH_H
#include "ue2common.h"
#include <cerrno>
#include <cstring>
#include <iostream>
#include <string>
#include <vector>
#include <sys/stat.h>
#if !defined(_WIN32)
#include <unistd.h>
#include <libgen.h>
#endif
//
// Utility functions
//
/**
* Given a path to a signature file, infer the path of the pcre directory.
*/
static inline
std::string inferExpressionPath(const std::string &sigFile) {
#ifndef _WIN32
// POSIX variant.
// dirname() may modify its argument, so we must make a copy.
std::vector<char> path(sigFile.begin(), sigFile.end());
path.push_back(0); // ensure null termination.
std::string rv = dirname(path.data());
#else
// Windows variant.
if (sigFile.size() >= _MAX_DIR) {
return std::string();
}
char path[_MAX_DIR];
_splitpath(sigFile.c_str(), nullptr, path, nullptr, nullptr);
std::string rv(path);
#endif
rv += "/../pcre";
return rv;
}
#if defined(_WIN32)
#define stat _stat
#define S_IFREG _S_IFREG
#endif
static inline
bool isDir(const std::string &filename) {
struct stat s;
if (stat(filename.c_str(), &s) == -1) {
std::cerr << "stat: " << strerror(errno) << std::endl;
return false;
}
return (S_IFDIR & s.st_mode);
}
static inline
bool isFile(const std::string &filename) {
struct stat s;
if (stat(filename.c_str(), &s) == -1) {
std::cerr << "stat: " << strerror(errno) << std::endl;
return false;
}
return (S_IFREG & s.st_mode);
}
#endif /* EXPRESSION_PATH_H */
|
