Coverage Report

Created: 2026-03-02 06:14

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/uWebSockets/fuzzing/helpers.h
Line
Count
Source
1
#ifndef HELPERS_H
2
#define HELPERS_H
3
4
/* Common helpers for fuzzing */
5
6
#include <functional>
7
#include <string_view>
8
#include <cstring>
9
10
/* We use this to pad the fuzz */
11
11.2k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
11.2k
    static int paddedLength = 512 * 1024;
13
11.2k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
11.2k
    if (paddedLength < size) {
17
152
        delete [] padded;
18
152
        paddedLength = size;
19
152
        padded = new char [128 + paddedLength + 128];
20
152
    }
21
22
11.2k
    memcpy(padded + 128, data, size);
23
24
11.2k
    return (uint8_t *) padded + 128;
25
11.2k
}
WebSocket.cpp:makePadded(unsigned char const*, unsigned long)
Line
Count
Source
11
1.47k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
1.47k
    static int paddedLength = 512 * 1024;
13
1.47k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
1.47k
    if (paddedLength < size) {
17
28
        delete [] padded;
18
28
        paddedLength = size;
19
28
        padded = new char [128 + paddedLength + 128];
20
28
    }
21
22
1.47k
    memcpy(padded + 128, data, size);
23
24
1.47k
    return (uint8_t *) padded + 128;
25
1.47k
}
TopicTree.cpp:makePadded(unsigned char const*, unsigned long)
Line
Count
Source
11
3.10k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
3.10k
    static int paddedLength = 512 * 1024;
13
3.10k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
3.10k
    if (paddedLength < size) {
17
32
        delete [] padded;
18
32
        paddedLength = size;
19
32
        padded = new char [128 + paddedLength + 128];
20
32
    }
21
22
3.10k
    memcpy(padded + 128, data, size);
23
24
3.10k
    return (uint8_t *) padded + 128;
25
3.10k
}
PerMessageDeflate.cpp:makePadded(unsigned char const*, unsigned long)
Line
Count
Source
11
304
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
304
    static int paddedLength = 512 * 1024;
13
304
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
304
    if (paddedLength < size) {
17
21
        delete [] padded;
18
21
        paddedLength = size;
19
21
        padded = new char [128 + paddedLength + 128];
20
21
    }
21
22
304
    memcpy(padded + 128, data, size);
23
24
304
    return (uint8_t *) padded + 128;
25
304
}
Http.cpp:makePadded(unsigned char const*, unsigned long)
Line
Count
Source
11
6.36k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
6.36k
    static int paddedLength = 512 * 1024;
13
6.36k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
6.36k
    if (paddedLength < size) {
17
71
        delete [] padded;
18
71
        paddedLength = size;
19
71
        padded = new char [128 + paddedLength + 128];
20
71
    }
21
22
6.36k
    memcpy(padded + 128, data, size);
23
24
6.36k
    return (uint8_t *) padded + 128;
25
6.36k
}
26
27
/* Splits the fuzz data in one or many chunks */
28
11.2k
static inline void makeChunked(const uint8_t *data, size_t size, std::function<void(const uint8_t *data, size_t size)> cb) {
29
    /* First byte determines chunk size; 0 is all that remains, 1-255 is small chunk */
30
5.29M
    for (int i = 0; i < size; ) {
31
5.28M
        unsigned int chunkSize = data[i++];
32
5.28M
        if (!chunkSize) {
33
3.36k
            chunkSize = size - i;
34
5.28M
        } else {
35
5.28M
            chunkSize = std::min<int>(chunkSize, size - i);
36
5.28M
        }
37
38
5.28M
        cb(data + i, chunkSize);
39
5.28M
        i += chunkSize;
40
5.28M
    }
41
11.2k
}
WebSocket.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
1.47k
static inline void makeChunked(const uint8_t *data, size_t size, std::function<void(const uint8_t *data, size_t size)> cb) {
29
    /* First byte determines chunk size; 0 is all that remains, 1-255 is small chunk */
30
218k
    for (int i = 0; i < size; ) {
31
217k
        unsigned int chunkSize = data[i++];
32
217k
        if (!chunkSize) {
33
455
            chunkSize = size - i;
34
216k
        } else {
35
216k
            chunkSize = std::min<int>(chunkSize, size - i);
36
216k
        }
37
38
217k
        cb(data + i, chunkSize);
39
217k
        i += chunkSize;
40
217k
    }
41
1.47k
}
TopicTree.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
3.10k
static inline void makeChunked(const uint8_t *data, size_t size, std::function<void(const uint8_t *data, size_t size)> cb) {
29
    /* First byte determines chunk size; 0 is all that remains, 1-255 is small chunk */
30
4.86M
    for (int i = 0; i < size; ) {
31
4.86M
        unsigned int chunkSize = data[i++];
32
4.86M
        if (!chunkSize) {
33
271
            chunkSize = size - i;
34
4.86M
        } else {
35
4.86M
            chunkSize = std::min<int>(chunkSize, size - i);
36
4.86M
        }
37
38
4.86M
        cb(data + i, chunkSize);
39
4.86M
        i += chunkSize;
40
4.86M
    }
41
3.10k
}
PerMessageDeflate.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
304
static inline void makeChunked(const uint8_t *data, size_t size, std::function<void(const uint8_t *data, size_t size)> cb) {
29
    /* First byte determines chunk size; 0 is all that remains, 1-255 is small chunk */
30
61.0k
    for (int i = 0; i < size; ) {
31
60.7k
        unsigned int chunkSize = data[i++];
32
60.7k
        if (!chunkSize) {
33
168
            chunkSize = size - i;
34
60.6k
        } else {
35
60.6k
            chunkSize = std::min<int>(chunkSize, size - i);
36
60.6k
        }
37
38
60.7k
        cb(data + i, chunkSize);
39
60.7k
        i += chunkSize;
40
60.7k
    }
41
304
}
Http.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
6.36k
static inline void makeChunked(const uint8_t *data, size_t size, std::function<void(const uint8_t *data, size_t size)> cb) {
29
    /* First byte determines chunk size; 0 is all that remains, 1-255 is small chunk */
30
150k
    for (int i = 0; i < size; ) {
31
144k
        unsigned int chunkSize = data[i++];
32
144k
        if (!chunkSize) {
33
2.47k
            chunkSize = size - i;
34
142k
        } else {
35
142k
            chunkSize = std::min<int>(chunkSize, size - i);
36
142k
        }
37
38
144k
        cb(data + i, chunkSize);
39
144k
        i += chunkSize;
40
144k
    }
41
6.36k
}
42
43
/* Reads all bytes to trigger invalid reads */
44
151k
static inline void readBytes(std::string_view s) {
45
151k
    volatile int sum = 0;
46
5.36M
    for (int i = 0; i < s.size(); i++) {
47
5.20M
        sum += s[i];
48
5.20M
    }
49
151k
}
Unexecuted instantiation: WebSocket.cpp:readBytes(std::__1::basic_string_view<char, std::__1::char_traits<char> >)
Unexecuted instantiation: TopicTree.cpp:readBytes(std::__1::basic_string_view<char, std::__1::char_traits<char> >)
Unexecuted instantiation: PerMessageDeflate.cpp:readBytes(std::__1::basic_string_view<char, std::__1::char_traits<char> >)
Http.cpp:readBytes(std::__1::basic_string_view<char, std::__1::char_traits<char> >)
Line
Count
Source
44
151k
static inline void readBytes(std::string_view s) {
45
151k
    volatile int sum = 0;
46
5.36M
    for (int i = 0; i < s.size(); i++) {
47
5.20M
        sum += s[i];
48
5.20M
    }
49
151k
}
50
51
#endif