Coverage Report

Created: 2026-04-08 06:12

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
11.6k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
11.6k
    static int paddedLength = 512 * 1024;
13
11.6k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
11.6k
    if (paddedLength < size) {
17
142
        delete [] padded;
18
142
        paddedLength = size;
19
142
        padded = new char [128 + paddedLength + 128];
20
142
    }
21
22
11.6k
    memcpy(padded + 128, data, size);
23
24
11.6k
    return (uint8_t *) padded + 128;
25
11.6k
}
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
26
        delete [] padded;
18
26
        paddedLength = size;
19
26
        padded = new char [128 + paddedLength + 128];
20
26
    }
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
3.32k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
3.32k
    static int paddedLength = 512 * 1024;
13
3.32k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
3.32k
    if (paddedLength < size) {
17
26
        delete [] padded;
18
26
        paddedLength = size;
19
26
        padded = new char [128 + paddedLength + 128];
20
26
    }
21
22
3.32k
    memcpy(padded + 128, data, size);
23
24
3.32k
    return (uint8_t *) padded + 128;
25
3.32k
}
PerMessageDeflate.cpp:makePadded(unsigned char const*, unsigned long)
Line
Count
Source
11
300
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
300
    static int paddedLength = 512 * 1024;
13
300
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
300
    if (paddedLength < size) {
17
21
        delete [] padded;
18
21
        paddedLength = size;
19
21
        padded = new char [128 + paddedLength + 128];
20
21
    }
21
22
300
    memcpy(padded + 128, data, size);
23
24
300
    return (uint8_t *) padded + 128;
25
300
}
Http.cpp:makePadded(unsigned char const*, unsigned long)
Line
Count
Source
11
6.51k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
6.51k
    static int paddedLength = 512 * 1024;
13
6.51k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
6.51k
    if (paddedLength < size) {
17
69
        delete [] padded;
18
69
        paddedLength = size;
19
69
        padded = new char [128 + paddedLength + 128];
20
69
    }
21
22
6.51k
    memcpy(padded + 128, data, size);
23
24
6.51k
    return (uint8_t *) padded + 128;
25
6.51k
}
26
27
/* Splits the fuzz data in one or many chunks */
28
11.6k
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
4.95M
    for (int i = 0; i < size; ) {
31
4.94M
        unsigned int chunkSize = data[i++];
32
4.94M
        if (!chunkSize) {
33
3.40k
            chunkSize = size - i;
34
4.94M
        } else {
35
4.94M
            chunkSize = std::min<int>(chunkSize, size - i);
36
4.94M
        }
37
38
4.94M
        cb(data + i, chunkSize);
39
4.94M
        i += chunkSize;
40
4.94M
    }
41
11.6k
}
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
150k
    for (int i = 0; i < size; ) {
31
148k
        unsigned int chunkSize = data[i++];
32
148k
        if (!chunkSize) {
33
470
            chunkSize = size - i;
34
148k
        } else {
35
148k
            chunkSize = std::min<int>(chunkSize, size - i);
36
148k
        }
37
38
148k
        cb(data + i, chunkSize);
39
148k
        i += chunkSize;
40
148k
    }
41
1.47k
}
TopicTree.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
3.32k
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
4.49M
    for (int i = 0; i < size; ) {
31
4.48M
        unsigned int chunkSize = data[i++];
32
4.48M
        if (!chunkSize) {
33
268
            chunkSize = size - i;
34
4.48M
        } else {
35
4.48M
            chunkSize = std::min<int>(chunkSize, size - i);
36
4.48M
        }
37
38
4.48M
        cb(data + i, chunkSize);
39
4.48M
        i += chunkSize;
40
4.48M
    }
41
3.32k
}
PerMessageDeflate.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
300
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
87.2k
    for (int i = 0; i < size; ) {
31
86.9k
        unsigned int chunkSize = data[i++];
32
86.9k
        if (!chunkSize) {
33
176
            chunkSize = size - i;
34
86.7k
        } else {
35
86.7k
            chunkSize = std::min<int>(chunkSize, size - i);
36
86.7k
        }
37
38
86.9k
        cb(data + i, chunkSize);
39
86.9k
        i += chunkSize;
40
86.9k
    }
41
300
}
Http.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
6.51k
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
228k
    for (int i = 0; i < size; ) {
31
221k
        unsigned int chunkSize = data[i++];
32
221k
        if (!chunkSize) {
33
2.48k
            chunkSize = size - i;
34
219k
        } else {
35
219k
            chunkSize = std::min<int>(chunkSize, size - i);
36
219k
        }
37
38
221k
        cb(data + i, chunkSize);
39
221k
        i += chunkSize;
40
221k
    }
41
6.51k
}
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
4.52M
    for (int i = 0; i < s.size(); i++) {
47
4.37M
        sum += s[i];
48
4.37M
    }
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
4.52M
    for (int i = 0; i < s.size(); i++) {
47
4.37M
        sum += s[i];
48
4.37M
    }
49
151k
}
50
51
#endif