Coverage Report

Created: 2026-01-17 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
11.1k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
11.1k
    static int paddedLength = 512 * 1024;
13
11.1k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
11.1k
    if (paddedLength < size) {
17
146
        delete [] padded;
18
146
        paddedLength = size;
19
146
        padded = new char [128 + paddedLength + 128];
20
146
    }
21
22
11.1k
    memcpy(padded + 128, data, size);
23
24
11.1k
    return (uint8_t *) padded + 128;
25
11.1k
}
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
26
        delete [] padded;
18
26
        paddedLength = size;
19
26
        padded = new char [128 + paddedLength + 128];
20
26
    }
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
3.08k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
3.08k
    static int paddedLength = 512 * 1024;
13
3.08k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
3.08k
    if (paddedLength < size) {
17
27
        delete [] padded;
18
27
        paddedLength = size;
19
27
        padded = new char [128 + paddedLength + 128];
20
27
    }
21
22
3.08k
    memcpy(padded + 128, data, size);
23
24
3.08k
    return (uint8_t *) padded + 128;
25
3.08k
}
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
23
        delete [] padded;
18
23
        paddedLength = size;
19
23
        padded = new char [128 + paddedLength + 128];
20
23
    }
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
6.34k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
6.34k
    static int paddedLength = 512 * 1024;
13
6.34k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
6.34k
    if (paddedLength < size) {
17
70
        delete [] padded;
18
70
        paddedLength = size;
19
70
        padded = new char [128 + paddedLength + 128];
20
70
    }
21
22
6.34k
    memcpy(padded + 128, data, size);
23
24
6.34k
    return (uint8_t *) padded + 128;
25
6.34k
}
26
27
/* Splits the fuzz data in one or many chunks */
28
11.1k
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
5.66M
    for (int i = 0; i < size; ) {
31
5.65M
        unsigned int chunkSize = data[i++];
32
5.65M
        if (!chunkSize) {
33
3.34k
            chunkSize = size - i;
34
5.64M
        } else {
35
5.64M
            chunkSize = std::min<int>(chunkSize, size - i);
36
5.64M
        }
37
38
5.65M
        cb(data + i, chunkSize);
39
5.65M
        i += chunkSize;
40
5.65M
    }
41
11.1k
}
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
209k
    for (int i = 0; i < size; ) {
31
207k
        unsigned int chunkSize = data[i++];
32
207k
        if (!chunkSize) {
33
445
            chunkSize = size - i;
34
207k
        } else {
35
207k
            chunkSize = std::min<int>(chunkSize, size - i);
36
207k
        }
37
38
207k
        cb(data + i, chunkSize);
39
207k
        i += chunkSize;
40
207k
    }
41
1.43k
}
TopicTree.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
3.08k
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
4.49M
        unsigned int chunkSize = data[i++];
32
4.49M
        if (!chunkSize) {
33
247
            chunkSize = size - i;
34
4.49M
        } else {
35
4.49M
            chunkSize = std::min<int>(chunkSize, size - i);
36
4.49M
        }
37
38
4.49M
        cb(data + i, chunkSize);
39
4.49M
        i += chunkSize;
40
4.49M
    }
41
3.08k
}
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
778k
    for (int i = 0; i < size; ) {
31
777k
        unsigned int chunkSize = data[i++];
32
777k
        if (!chunkSize) {
33
176
            chunkSize = size - i;
34
777k
        } else {
35
777k
            chunkSize = std::min<int>(chunkSize, size - i);
36
777k
        }
37
38
777k
        cb(data + i, chunkSize);
39
777k
        i += chunkSize;
40
777k
    }
41
312
}
Http.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
6.34k
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
177k
    for (int i = 0; i < size; ) {
31
170k
        unsigned int chunkSize = data[i++];
32
170k
        if (!chunkSize) {
33
2.47k
            chunkSize = size - i;
34
168k
        } else {
35
168k
            chunkSize = std::min<int>(chunkSize, size - i);
36
168k
        }
37
38
170k
        cb(data + i, chunkSize);
39
170k
        i += chunkSize;
40
170k
    }
41
6.34k
}
42
43
/* Reads all bytes to trigger invalid reads */
44
154k
static inline void readBytes(std::string_view s) {
45
154k
    volatile int sum = 0;
46
4.95M
    for (int i = 0; i < s.size(); i++) {
47
4.80M
        sum += s[i];
48
4.80M
    }
49
154k
}
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
154k
static inline void readBytes(std::string_view s) {
45
154k
    volatile int sum = 0;
46
4.95M
    for (int i = 0; i < s.size(); i++) {
47
4.80M
        sum += s[i];
48
4.80M
    }
49
154k
}
50
51
#endif