Coverage Report

Created: 2026-04-15 06:28

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
11.5k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
11.5k
    static int paddedLength = 512 * 1024;
13
11.5k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
11.5k
    if (paddedLength < size) {
17
141
        delete [] padded;
18
141
        paddedLength = size;
19
141
        padded = new char [128 + paddedLength + 128];
20
141
    }
21
22
11.5k
    memcpy(padded + 128, data, size);
23
24
11.5k
    return (uint8_t *) padded + 128;
25
11.5k
}
WebSocket.cpp:makePadded(unsigned char const*, unsigned long)
Line
Count
Source
11
1.48k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
1.48k
    static int paddedLength = 512 * 1024;
13
1.48k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
1.48k
    if (paddedLength < size) {
17
25
        delete [] padded;
18
25
        paddedLength = size;
19
25
        padded = new char [128 + paddedLength + 128];
20
25
    }
21
22
1.48k
    memcpy(padded + 128, data, size);
23
24
1.48k
    return (uint8_t *) padded + 128;
25
1.48k
}
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
302
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
302
    static int paddedLength = 512 * 1024;
13
302
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
302
    if (paddedLength < size) {
17
23
        delete [] padded;
18
23
        paddedLength = size;
19
23
        padded = new char [128 + paddedLength + 128];
20
23
    }
21
22
302
    memcpy(padded + 128, data, size);
23
24
302
    return (uint8_t *) padded + 128;
25
302
}
Http.cpp:makePadded(unsigned char const*, unsigned long)
Line
Count
Source
11
6.45k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
6.45k
    static int paddedLength = 512 * 1024;
13
6.45k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
6.45k
    if (paddedLength < size) {
17
67
        delete [] padded;
18
67
        paddedLength = size;
19
67
        padded = new char [128 + paddedLength + 128];
20
67
    }
21
22
6.45k
    memcpy(padded + 128, data, size);
23
24
6.45k
    return (uint8_t *) padded + 128;
25
6.45k
}
26
27
/* Splits the fuzz data in one or many chunks */
28
11.5k
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
5.38M
    for (int i = 0; i < size; ) {
31
5.37M
        unsigned int chunkSize = data[i++];
32
5.37M
        if (!chunkSize) {
33
3.41k
            chunkSize = size - i;
34
5.36M
        } else {
35
5.36M
            chunkSize = std::min<int>(chunkSize, size - i);
36
5.36M
        }
37
38
5.37M
        cb(data + i, chunkSize);
39
5.37M
        i += chunkSize;
40
5.37M
    }
41
11.5k
}
WebSocket.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
1.48k
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
185k
    for (int i = 0; i < size; ) {
31
184k
        unsigned int chunkSize = data[i++];
32
184k
        if (!chunkSize) {
33
479
            chunkSize = size - i;
34
183k
        } else {
35
183k
            chunkSize = std::min<int>(chunkSize, size - i);
36
183k
        }
37
38
184k
        cb(data + i, chunkSize);
39
184k
        i += chunkSize;
40
184k
    }
41
1.48k
}
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
302
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
497k
    for (int i = 0; i < size; ) {
31
497k
        unsigned int chunkSize = data[i++];
32
497k
        if (!chunkSize) {
33
178
            chunkSize = size - i;
34
497k
        } else {
35
497k
            chunkSize = std::min<int>(chunkSize, size - i);
36
497k
        }
37
38
497k
        cb(data + i, chunkSize);
39
497k
        i += chunkSize;
40
497k
    }
41
302
}
Http.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
6.45k
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
209k
    for (int i = 0; i < size; ) {
31
202k
        unsigned int chunkSize = data[i++];
32
202k
        if (!chunkSize) {
33
2.49k
            chunkSize = size - i;
34
200k
        } else {
35
200k
            chunkSize = std::min<int>(chunkSize, size - i);
36
200k
        }
37
38
202k
        cb(data + i, chunkSize);
39
202k
        i += chunkSize;
40
202k
    }
41
6.45k
}
42
43
/* Reads all bytes to trigger invalid reads */
44
152k
static inline void readBytes(std::string_view s) {
45
152k
    volatile int sum = 0;
46
4.19M
    for (int i = 0; i < s.size(); i++) {
47
4.03M
        sum += s[i];
48
4.03M
    }
49
152k
}
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
152k
static inline void readBytes(std::string_view s) {
45
152k
    volatile int sum = 0;
46
4.19M
    for (int i = 0; i < s.size(); i++) {
47
4.03M
        sum += s[i];
48
4.03M
    }
49
152k
}
50
51
#endif