GCC Code Coverage Report

Directory: cvmfs/
File: cvmfs/cvmfs_suid_util.cc
Date: 2025-07-13 02:35:07
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 32 string EscapeSystemdUnit(const string &path) {
25
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 32 times.
 32 assert(!path.empty());
26
27
1/2
✓ Branch 1 taken 32 times.
✗ Branch 2 not taken.
 32 string normalized_path(path);
28 size_t pos;
29
2/2
✓ Branch 1 taken 28 times.
✓ Branch 2 taken 32 times.
 60 while ((pos = normalized_path.find("//")) != string::npos) {
30
1/2
✓ Branch 1 taken 28 times.
✗ Branch 2 not taken.
 28 normalized_path.replace(pos, 2, "/");
31 }
32
33
2/2
✓ Branch 1 taken 16 times.
✓ Branch 2 taken 16 times.
 32 if (normalized_path == "/")
34
1/2
✓ Branch 2 taken 16 times.
✗ Branch 3 not taken.
 16 return "-.mount";
35
36
2/4
✓ Branch 2 taken 16 times.
✗ Branch 3 not taken.
✓ Branch 5 taken 16 times.
✗ Branch 6 not taken.
 32 const sanitizer::InputSanitizer sanitizer("az AZ 09 _");
37 16 const unsigned length = normalized_path.length();
38 16 string result;
39
2/2
✓ Branch 0 taken 112 times.
✓ Branch 1 taken 16 times.
 128 for (unsigned i = 0; i < length; ++i) {
40
1/2
✓ Branch 1 taken 112 times.
✗ Branch 2 not taken.
 112 const char c = normalized_path[i];
41
2/2
✓ Branch 0 taken 48 times.
✓ Branch 1 taken 64 times.
 112 if (c == '/') {
42
4/4
✓ Branch 0 taken 36 times.
✓ Branch 1 taken 12 times.
✓ Branch 2 taken 4 times.
✓ Branch 3 taken 32 times.
 48 if ((i == 0) || (i == length - 1))
43 16 continue;
44
1/2
✓ Branch 1 taken 32 times.
✗ Branch 2 not taken.
 32 result.push_back('-');
45
4/4
✓ Branch 0 taken 8 times.
✓ Branch 1 taken 56 times.
✓ Branch 2 taken 4 times.
✓ Branch 3 taken 4 times.
 64 } else if ((c == '.') && (i > 0)) {
46
1/2
✓ Branch 1 taken 4 times.
✗ Branch 2 not taken.
 4 result.push_back('.');
47
4/6
✓ Branch 2 taken 60 times.
✗ Branch 3 not taken.
✓ Branch 5 taken 60 times.
✗ Branch 6 not taken.
✓ Branch 9 taken 52 times.
✓ Branch 10 taken 8 times.
 60 } else if (sanitizer.IsValid(string(&c, 1))) {
48
1/2
✓ Branch 1 taken 52 times.
✗ Branch 2 not taken.
 52 result.push_back(c);
49 } else {
50
1/2
✓ Branch 1 taken 8 times.
✗ Branch 2 not taken.
 8 result.push_back('\\');
51
1/2
✓ Branch 1 taken 8 times.
✗ Branch 2 not taken.
 8 result.push_back('x');
52
1/2
✓ Branch 1 taken 8 times.
✗ Branch 2 not taken.
 8 result.push_back((c / 16) + ((c / 16 <= 9) ? '0' : 'a' - 10));
53
3/4
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 4 times.
✓ Branch 3 taken 8 times.
✗ Branch 4 not taken.
 8 result.push_back((c % 16) + ((c % 16 <= 9) ? '0' : 'a' - 10));
54 }
55 }
56
57
1/2
✓ Branch 1 taken 16 times.
✗ Branch 2 not taken.
 16 return result + ".mount";
58 32 }
59
60
61 10 bool PathExists(const std::string &path) {
62 struct stat info;
63 10 const int retval = stat(path.c_str(), &info);
64 10 return retval == 0;
65 }
66
67
68 15 string ResolvePath(const std::string &path) {
69 char buf[PATH_MAX];
70 15 char *retval = realpath(path.c_str(), buf);
71
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 15 times.
 15 if (retval == NULL)
72 ✗ return "";
73
1/2
✓ Branch 2 taken 15 times.
✗ Branch 3 not taken.
 15 return string(buf);
74 }
75
76 } // namespace cvmfs_suid
77