Coverage Report

Created: 2025-10-14 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
10.9k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
10.9k
    static int paddedLength = 512 * 1024;
13
10.9k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
10.9k
    if (paddedLength < size) {
17
143
        delete [] padded;
18
143
        paddedLength = size;
19
143
        padded = new char [128 + paddedLength + 128];
20
143
    }
21
22
10.9k
    memcpy(padded + 128, data, size);
23
24
10.9k
    return (uint8_t *) padded + 128;
25
10.9k
}
WebSocket.cpp:makePadded(unsigned char const*, unsigned long)
Line
Count
Source
11
1.43k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
1.43k
    static int paddedLength = 512 * 1024;
13
1.43k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
1.43k
    if (paddedLength < size) {
17
27
        delete [] padded;
18
27
        paddedLength = size;
19
27
        padded = new char [128 + paddedLength + 128];
20
27
    }
21
22
1.43k
    memcpy(padded + 128, data, size);
23
24
1.43k
    return (uint8_t *) padded + 128;
25
1.43k
}
TopicTree.cpp:makePadded(unsigned char const*, unsigned long)
Line
Count
Source
11
2.99k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
2.99k
    static int paddedLength = 512 * 1024;
13
2.99k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
2.99k
    if (paddedLength < size) {
17
24
        delete [] padded;
18
24
        paddedLength = size;
19
24
        padded = new char [128 + paddedLength + 128];
20
24
    }
21
22
2.99k
    memcpy(padded + 128, data, size);
23
24
2.99k
    return (uint8_t *) padded + 128;
25
2.99k
}
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
22
        delete [] padded;
18
22
        paddedLength = size;
19
22
        padded = new char [128 + paddedLength + 128];
20
22
    }
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
6.25k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
6.25k
    static int paddedLength = 512 * 1024;
13
6.25k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
6.25k
    if (paddedLength < size) {
17
70
        delete [] padded;
18
70
        paddedLength = size;
19
70
        padded = new char [128 + paddedLength + 128];
20
70
    }
21
22
6.25k
    memcpy(padded + 128, data, size);
23
24
6.25k
    return (uint8_t *) padded + 128;
25
6.25k
}
26
27
/* Splits the fuzz data in one or many chunks */
28
10.9k
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
5.45M
    for (int i = 0; i < size; ) {
31
5.44M
        unsigned int chunkSize = data[i++];
32
5.44M
        if (!chunkSize) {
33
3.30k
            chunkSize = size - i;
34
5.44M
        } else {
35
5.44M
            chunkSize = std::min<int>(chunkSize, size - i);
36
5.44M
        }
37
38
5.44M
        cb(data + i, chunkSize);
39
5.44M
        i += chunkSize;
40
5.44M
    }
41
10.9k
}
WebSocket.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
1.43k
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
154k
    for (int i = 0; i < size; ) {
31
153k
        unsigned int chunkSize = data[i++];
32
153k
        if (!chunkSize) {
33
417
            chunkSize = size - i;
34
153k
        } else {
35
153k
            chunkSize = std::min<int>(chunkSize, size - i);
36
153k
        }
37
38
153k
        cb(data + i, chunkSize);
39
153k
        i += chunkSize;
40
153k
    }
41
1.43k
}
TopicTree.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
2.99k
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
4.36M
    for (int i = 0; i < size; ) {
31
4.35M
        unsigned int chunkSize = data[i++];
32
4.35M
        if (!chunkSize) {
33
226
            chunkSize = size - i;
34
4.35M
        } else {
35
4.35M
            chunkSize = std::min<int>(chunkSize, size - i);
36
4.35M
        }
37
38
4.35M
        cb(data + i, chunkSize);
39
4.35M
        i += chunkSize;
40
4.35M
    }
41
2.99k
}
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
744k
    for (int i = 0; i < size; ) {
31
744k
        unsigned int chunkSize = data[i++];
32
744k
        if (!chunkSize) {
33
186
            chunkSize = size - i;
34
744k
        } else {
35
744k
            chunkSize = std::min<int>(chunkSize, size - i);
36
744k
        }
37
38
744k
        cb(data + i, chunkSize);
39
744k
        i += chunkSize;
40
744k
    }
41
304
}
Http.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
6.25k
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
193k
    for (int i = 0; i < size; ) {
31
186k
        unsigned int chunkSize = data[i++];
32
186k
        if (!chunkSize) {
33
2.47k
            chunkSize = size - i;
34
184k
        } else {
35
184k
            chunkSize = std::min<int>(chunkSize, size - i);
36
184k
        }
37
38
186k
        cb(data + i, chunkSize);
39
186k
        i += chunkSize;
40
186k
    }
41
6.25k
}
42
43
/* Reads all bytes to trigger invalid reads */
44
167k
static inline void readBytes(std::string_view s) {
45
167k
    volatile int sum = 0;
46
3.68M
    for (int i = 0; i < s.size(); i++) {
47
3.51M
        sum += s[i];
48
3.51M
    }
49
167k
}
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
167k
static inline void readBytes(std::string_view s) {
45
167k
    volatile int sum = 0;
46
3.68M
    for (int i = 0; i < s.size(); i++) {
47
3.51M
        sum += s[i];
48
3.51M
    }
49
167k
}
50
51
#endif