GCC Code Coverage Report

Directory: cvmfs/
File: cvmfs/cvmfs_suid_util.cc
Date: 2025-12-21 02:39:23
Exec Total Coverage
Lines: 33 34 97.1%
Branches: 39 60 65.0%
Line Branch Exec Source
1 /**
2 * This file is part of the CernVM File System
3 */
4
5 #include "cvmfs_suid_util.h"
6
7 #include <sys/stat.h>
8 #include <unistd.h>
9
10 #include <cassert>
11 #include <climits>
12 #include <cstdlib>
13
14 #include "sanitizer.h"
15
16 using namespace std; // NOLINT
17
18 namespace cvmfs_suid {
19
20 /**
21 * Makes a systemd mount unit string from the given path, such as
22 * a-b-c.mount from /a/b/c
23 */
24 360 string EscapeSystemdUnit(const string &path) {
25
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 360 assert(!path.empty());
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 360 string normalized_path(path);
28 size_t pos;
29
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 675 while ((pos = normalized_path.find("//")) != string::npos) {
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 315 normalized_path.replace(pos, 2, "/");
31 }
32
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 360 if (normalized_path == "/")
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 180 return "-.mount";
35
36
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 360 const sanitizer::InputSanitizer sanitizer("az AZ 09 _");
37 180 const unsigned length = normalized_path.length();
38 180 string result;
39
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 1440 for (unsigned i = 0; i < length; ++i) {
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 1260 const char c = normalized_path[i];
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 1260 if (c == '/') {
42
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 540 if ((i == 0) || (i == length - 1))
43 180 continue;
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 360 result.push_back('-');
45
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 720 } else if ((c == '.') && (i > 0)) {
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 45 result.push_back('.');
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 675 } else if (sanitizer.IsValid(string(&c, 1))) {
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 585 result.push_back(c);
49 } else {
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 90 result.push_back('\\');
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 90 result.push_back('x');
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 90 result.push_back((c / 16) + ((c / 16 <= 9) ? '0' : 'a' - 10));
53
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 90 result.push_back((c % 16) + ((c % 16 <= 9) ? '0' : 'a' - 10));
54 }
55 }
56
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 180 return result + ".mount";
58 360 }
59
60
61 92 bool PathExists(const std::string &path) {
62 struct stat info;
63 92 const int retval = stat(path.c_str(), &info);
64 92 return retval == 0;
65 }
66
67
68 135 string ResolvePath(const std::string &path) {
69 char buf[PATH_MAX];
70 135 char *retval = realpath(path.c_str(), buf);
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 135 if (retval == NULL)
72 ✗ return "";
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 135 return string(buf);
74 }
75
76 } // namespace cvmfs_suid
77