Coverage Report

Created: 2025-12-18 06:45

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
138
        delete [] padded;
18
138
        paddedLength = size;
19
138
        padded = new char [128 + paddedLength + 128];
20
138
    }
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
1.40k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
1.40k
    static int paddedLength = 512 * 1024;
13
1.40k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
1.40k
    if (paddedLength < size) {
17
28
        delete [] padded;
18
28
        paddedLength = size;
19
28
        padded = new char [128 + paddedLength + 128];
20
28
    }
21
22
1.40k
    memcpy(padded + 128, data, size);
23
24
1.40k
    return (uint8_t *) padded + 128;
25
1.40k
}
TopicTree.cpp:makePadded(unsigned char const*, unsigned long)
Line
Count
Source
11
3.00k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
3.00k
    static int paddedLength = 512 * 1024;
13
3.00k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
3.00k
    if (paddedLength < size) {
17
27
        delete [] padded;
18
27
        paddedLength = size;
19
27
        padded = new char [128 + paddedLength + 128];
20
27
    }
21
22
3.00k
    memcpy(padded + 128, data, size);
23
24
3.00k
    return (uint8_t *) padded + 128;
25
3.00k
}
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
21
        delete [] padded;
18
21
        paddedLength = size;
19
21
        padded = new char [128 + paddedLength + 128];
20
21
    }
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
6.27k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
6.27k
    static int paddedLength = 512 * 1024;
13
6.27k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
6.27k
    if (paddedLength < size) {
17
62
        delete [] padded;
18
62
        paddedLength = size;
19
62
        padded = new char [128 + paddedLength + 128];
20
62
    }
21
22
6.27k
    memcpy(padded + 128, data, size);
23
24
6.27k
    return (uint8_t *) padded + 128;
25
6.27k
}
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
6.36M
    for (int i = 0; i < size; ) {
31
6.35M
        unsigned int chunkSize = data[i++];
32
6.35M
        if (!chunkSize) {
33
3.37k
            chunkSize = size - i;
34
6.35M
        } else {
35
6.35M
            chunkSize = std::min<int>(chunkSize, size - i);
36
6.35M
        }
37
38
6.35M
        cb(data + i, chunkSize);
39
6.35M
        i += chunkSize;
40
6.35M
    }
41
10.9k
}
WebSocket.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
1.40k
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
188k
    for (int i = 0; i < size; ) {
31
187k
        unsigned int chunkSize = data[i++];
32
187k
        if (!chunkSize) {
33
435
            chunkSize = size - i;
34
187k
        } else {
35
187k
            chunkSize = std::min<int>(chunkSize, size - i);
36
187k
        }
37
38
187k
        cb(data + i, chunkSize);
39
187k
        i += chunkSize;
40
187k
    }
41
1.40k
}
TopicTree.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
3.00k
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
5.24M
    for (int i = 0; i < size; ) {
31
5.24M
        unsigned int chunkSize = data[i++];
32
5.24M
        if (!chunkSize) {
33
208
            chunkSize = size - i;
34
5.24M
        } else {
35
5.24M
            chunkSize = std::min<int>(chunkSize, size - i);
36
5.24M
        }
37
38
5.24M
        cb(data + i, chunkSize);
39
5.24M
        i += chunkSize;
40
5.24M
    }
41
3.00k
}
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
774k
    for (int i = 0; i < size; ) {
31
774k
        unsigned int chunkSize = data[i++];
32
774k
        if (!chunkSize) {
33
186
            chunkSize = size - i;
34
774k
        } else {
35
774k
            chunkSize = std::min<int>(chunkSize, size - i);
36
774k
        }
37
38
774k
        cb(data + i, chunkSize);
39
774k
        i += chunkSize;
40
774k
    }
41
302
}
Http.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
6.27k
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
156k
    for (int i = 0; i < size; ) {
31
149k
        unsigned int chunkSize = data[i++];
32
149k
        if (!chunkSize) {
33
2.55k
            chunkSize = size - i;
34
147k
        } else {
35
147k
            chunkSize = std::min<int>(chunkSize, size - i);
36
147k
        }
37
38
149k
        cb(data + i, chunkSize);
39
149k
        i += chunkSize;
40
149k
    }
41
6.27k
}
42
43
/* Reads all bytes to trigger invalid reads */
44
153k
static inline void readBytes(std::string_view s) {
45
153k
    volatile int sum = 0;
46
3.47M
    for (int i = 0; i < s.size(); i++) {
47
3.31M
        sum += s[i];
48
3.31M
    }
49
153k
}
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
153k
static inline void readBytes(std::string_view s) {
45
153k
    volatile int sum = 0;
46
3.47M
    for (int i = 0; i < s.size(); i++) {
47
3.31M
        sum += s[i];
48
3.31M
    }
49
153k
}
50
51
#endif