Coverage Report

Created: 2026-04-01 06:44

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
11.3k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
11.3k
    static int paddedLength = 512 * 1024;
13
11.3k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
11.3k
    if (paddedLength < size) {
17
150
        delete [] padded;
18
150
        paddedLength = size;
19
150
        padded = new char [128 + paddedLength + 128];
20
150
    }
21
22
11.3k
    memcpy(padded + 128, data, size);
23
24
11.3k
    return (uint8_t *) padded + 128;
25
11.3k
}
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
27
        delete [] padded;
18
27
        paddedLength = size;
19
27
        padded = new char [128 + paddedLength + 128];
20
27
    }
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
3.09k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
3.09k
    static int paddedLength = 512 * 1024;
13
3.09k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
3.09k
    if (paddedLength < size) {
17
31
        delete [] padded;
18
31
        paddedLength = size;
19
31
        padded = new char [128 + paddedLength + 128];
20
31
    }
21
22
3.09k
    memcpy(padded + 128, data, size);
23
24
3.09k
    return (uint8_t *) padded + 128;
25
3.09k
}
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
6.45k
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
69
        delete [] padded;
18
69
        paddedLength = size;
19
69
        padded = new char [128 + paddedLength + 128];
20
69
    }
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
11.3k
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
5.03M
    for (int i = 0; i < size; ) {
31
5.02M
        unsigned int chunkSize = data[i++];
32
5.02M
        if (!chunkSize) {
33
3.38k
            chunkSize = size - i;
34
5.02M
        } else {
35
5.02M
            chunkSize = std::min<int>(chunkSize, size - i);
36
5.02M
        }
37
38
5.02M
        cb(data + i, chunkSize);
39
5.02M
        i += chunkSize;
40
5.02M
    }
41
11.3k
}
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
141k
    for (int i = 0; i < size; ) {
31
139k
        unsigned int chunkSize = data[i++];
32
139k
        if (!chunkSize) {
33
468
            chunkSize = size - i;
34
139k
        } else {
35
139k
            chunkSize = std::min<int>(chunkSize, size - i);
36
139k
        }
37
38
139k
        cb(data + i, chunkSize);
39
139k
        i += chunkSize;
40
139k
    }
41
1.48k
}
TopicTree.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
3.09k
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
4.60M
    for (int i = 0; i < size; ) {
31
4.60M
        unsigned int chunkSize = data[i++];
32
4.60M
        if (!chunkSize) {
33
259
            chunkSize = size - i;
34
4.60M
        } else {
35
4.60M
            chunkSize = std::min<int>(chunkSize, size - i);
36
4.60M
        }
37
38
4.60M
        cb(data + i, chunkSize);
39
4.60M
        i += chunkSize;
40
4.60M
    }
41
3.09k
}
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
85.5k
    for (int i = 0; i < size; ) {
31
85.1k
        unsigned int chunkSize = data[i++];
32
85.1k
        if (!chunkSize) {
33
184
            chunkSize = size - i;
34
85.0k
        } else {
35
85.0k
            chunkSize = std::min<int>(chunkSize, size - i);
36
85.0k
        }
37
38
85.1k
        cb(data + i, chunkSize);
39
85.1k
        i += chunkSize;
40
85.1k
    }
41
312
}
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
199k
    for (int i = 0; i < size; ) {
31
193k
        unsigned int chunkSize = data[i++];
32
193k
        if (!chunkSize) {
33
2.47k
            chunkSize = size - i;
34
190k
        } else {
35
190k
            chunkSize = std::min<int>(chunkSize, size - i);
36
190k
        }
37
38
193k
        cb(data + i, chunkSize);
39
193k
        i += chunkSize;
40
193k
    }
41
6.45k
}
42
43
/* Reads all bytes to trigger invalid reads */
44
170k
static inline void readBytes(std::string_view s) {
45
170k
    volatile int sum = 0;
46
6.17M
    for (int i = 0; i < s.size(); i++) {
47
6.00M
        sum += s[i];
48
6.00M
    }
49
170k
}
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
170k
static inline void readBytes(std::string_view s) {
45
170k
    volatile int sum = 0;
46
6.17M
    for (int i = 0; i < s.size(); i++) {
47
6.00M
        sum += s[i];
48
6.00M
    }
49
170k
}
50
51
#endif