GCC Code Coverage Report

Directory: cvmfs/
File: cvmfs/cvmfs_suid_util.cc
Date: 2025-06-22 02:36:02
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 88 string EscapeSystemdUnit(const string &path) {
25
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 88 times.
 88 assert(!path.empty());
26
27
1/2
✓ Branch 1 taken 88 times.
✗ Branch 2 not taken.
 88 string normalized_path(path);
28 size_t pos;
29
2/2
✓ Branch 1 taken 77 times.
✓ Branch 2 taken 88 times.
 165 while ((pos = normalized_path.find("//")) != string::npos) {
30
1/2
✓ Branch 1 taken 77 times.
✗ Branch 2 not taken.
 77 normalized_path.replace(pos, 2, "/");
31 }
32
33
2/2
✓ Branch 1 taken 44 times.
✓ Branch 2 taken 44 times.
 88 if (normalized_path == "/")
34
1/2
✓ Branch 2 taken 44 times.
✗ Branch 3 not taken.
 44 return "-.mount";
35
36
2/4
✓ Branch 2 taken 44 times.
✗ Branch 3 not taken.
✓ Branch 5 taken 44 times.
✗ Branch 6 not taken.
 88 const sanitizer::InputSanitizer sanitizer("az AZ 09 _");
37 44 const unsigned length = normalized_path.length();
38 44 string result;
39
2/2
✓ Branch 0 taken 308 times.
✓ Branch 1 taken 44 times.
 352 for (unsigned i = 0; i < length; ++i) {
40
1/2
✓ Branch 1 taken 308 times.
✗ Branch 2 not taken.
 308 const char c = normalized_path[i];
41
2/2
✓ Branch 0 taken 132 times.
✓ Branch 1 taken 176 times.
 308 if (c == '/') {
42
4/4
✓ Branch 0 taken 99 times.
✓ Branch 1 taken 33 times.
✓ Branch 2 taken 11 times.
✓ Branch 3 taken 88 times.
 132 if ((i == 0) || (i == length - 1))
43 44 continue;
44
1/2
✓ Branch 1 taken 88 times.
✗ Branch 2 not taken.
 88 result.push_back('-');
45
4/4
✓ Branch 0 taken 22 times.
✓ Branch 1 taken 154 times.
✓ Branch 2 taken 11 times.
✓ Branch 3 taken 11 times.
 176 } else if ((c == '.') && (i > 0)) {
46
1/2
✓ Branch 1 taken 11 times.
✗ Branch 2 not taken.
 11 result.push_back('.');
47
4/6
✓ Branch 2 taken 165 times.
✗ Branch 3 not taken.
✓ Branch 5 taken 165 times.
✗ Branch 6 not taken.
✓ Branch 9 taken 143 times.
✓ Branch 10 taken 22 times.
 165 } else if (sanitizer.IsValid(string(&c, 1))) {
48
1/2
✓ Branch 1 taken 143 times.
✗ Branch 2 not taken.
 143 result.push_back(c);
49 } else {
50
1/2
✓ Branch 1 taken 22 times.
✗ Branch 2 not taken.
 22 result.push_back('\\');
51
1/2
✓ Branch 1 taken 22 times.
✗ Branch 2 not taken.
 22 result.push_back('x');
52
1/2
✓ Branch 1 taken 22 times.
✗ Branch 2 not taken.
 22 result.push_back((c / 16) + ((c / 16 <= 9) ? '0' : 'a' - 10));
53
3/4
✓ Branch 0 taken 11 times.
✓ Branch 1 taken 11 times.
✓ Branch 3 taken 22 times.
✗ Branch 4 not taken.
 22 result.push_back((c % 16) + ((c % 16 <= 9) ? '0' : 'a' - 10));
54 }
55 }
56
57
1/2
✓ Branch 1 taken 44 times.
✗ Branch 2 not taken.
 44 return result + ".mount";
58 88 }
59
60
61 22 bool PathExists(const std::string &path) {
62 struct stat info;
63 22 const int retval = stat(path.c_str(), &info);
64 22 return retval == 0;
65 }
66
67
68 33 string ResolvePath(const std::string &path) {
69 char buf[PATH_MAX];
70 33 char *retval = realpath(path.c_str(), buf);
71
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 33 times.
 33 if (retval == NULL)
72 ✗ return "";
73
1/2
✓ Branch 2 taken 33 times.
✗ Branch 3 not taken.
 33 return string(buf);
74 }
75
76 } // namespace cvmfs_suid
77