Coverage Report

Created: 2026-06-07 06:38

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
1.47k
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
3.26k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
3.26k
    static int paddedLength = 512 * 1024;
13
3.26k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
3.26k
    if (paddedLength < size) {
17
25
        delete [] padded;
18
25
        paddedLength = size;
19
25
        padded = new char [128 + paddedLength + 128];
20
25
    }
21
22
3.26k
    memcpy(padded + 128, data, size);
23
24
3.26k
    return (uint8_t *) padded + 128;
25
3.26k
}
PerMessageDeflate.cpp:makePadded(unsigned char const*, unsigned long)
Line
Count
Source
11
312
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
312
    static int paddedLength = 512 * 1024;
13
312
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
312
    if (paddedLength < size) {
17
22
        delete [] padded;
18
22
        paddedLength = size;
19
22
        padded = new char [128 + paddedLength + 128];
20
22
    }
21
22
312
    memcpy(padded + 128, data, size);
23
24
312
    return (uint8_t *) padded + 128;
25
312
}
Http.cpp:makePadded(unsigned char const*, unsigned long)
Line
Count
Source
11
6.47k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
6.47k
    static int paddedLength = 512 * 1024;
13
6.47k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
6.47k
    if (paddedLength < size) {
17
68
        delete [] padded;
18
68
        paddedLength = size;
19
68
        padded = new char [128 + paddedLength + 128];
20
68
    }
21
22
6.47k
    memcpy(padded + 128, data, size);
23
24
6.47k
    return (uint8_t *) padded + 128;
25
6.47k
}
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
4.75M
    for (int i = 0; i < size; ) {
31
4.73M
        unsigned int chunkSize = data[i++];
32
4.73M
        if (!chunkSize) {
33
3.36k
            chunkSize = size - i;
34
4.73M
        } else {
35
4.73M
            chunkSize = std::min<int>(chunkSize, size - i);
36
4.73M
        }
37
38
4.73M
        cb(data + i, chunkSize);
39
4.73M
        i += chunkSize;
40
4.73M
    }
41
11.5k
}
WebSocket.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
1.47k
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
240k
    for (int i = 0; i < size; ) {
31
238k
        unsigned int chunkSize = data[i++];
32
238k
        if (!chunkSize) {
33
444
            chunkSize = size - i;
34
238k
        } else {
35
238k
            chunkSize = std::min<int>(chunkSize, size - i);
36
238k
        }
37
38
238k
        cb(data + i, chunkSize);
39
238k
        i += chunkSize;
40
238k
    }
41
1.47k
}
TopicTree.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
3.26k
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
4.24M
    for (int i = 0; i < size; ) {
31
4.23M
        unsigned int chunkSize = data[i++];
32
4.23M
        if (!chunkSize) {
33
271
            chunkSize = size - i;
34
4.23M
        } else {
35
4.23M
            chunkSize = std::min<int>(chunkSize, size - i);
36
4.23M
        }
37
38
4.23M
        cb(data + i, chunkSize);
39
4.23M
        i += chunkSize;
40
4.23M
    }
41
3.26k
}
PerMessageDeflate.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
312
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
56.5k
    for (int i = 0; i < size; ) {
31
56.2k
        unsigned int chunkSize = data[i++];
32
56.2k
        if (!chunkSize) {
33
184
            chunkSize = size - i;
34
56.0k
        } else {
35
56.0k
            chunkSize = std::min<int>(chunkSize, size - i);
36
56.0k
        }
37
38
56.2k
        cb(data + i, chunkSize);
39
56.2k
        i += chunkSize;
40
56.2k
    }
41
312
}
Http.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
6.47k
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
210k
    for (int i = 0; i < size; ) {
31
204k
        unsigned int chunkSize = data[i++];
32
204k
        if (!chunkSize) {
33
2.46k
            chunkSize = size - i;
34
201k
        } else {
35
201k
            chunkSize = std::min<int>(chunkSize, size - i);
36
201k
        }
37
38
204k
        cb(data + i, chunkSize);
39
204k
        i += chunkSize;
40
204k
    }
41
6.47k
}
42
43
/* Reads all bytes to trigger invalid reads */
44
161k
static inline void readBytes(std::string_view s) {
45
161k
    volatile int sum = 0;
46
4.89M
    for (int i = 0; i < s.size(); i++) {
47
4.73M
        sum += s[i];
48
4.73M
    }
49
161k
}
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
161k
static inline void readBytes(std::string_view s) {
45
161k
    volatile int sum = 0;
46
4.89M
    for (int i = 0; i < s.size(); i++) {
47
4.73M
        sum += s[i];
48
4.73M
    }
49
161k
}
50
51
#endif