Coverage Report

Created: 2026-04-29 06:22

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
146
        delete [] padded;
18
146
        paddedLength = size;
19
146
        padded = new char [128 + paddedLength + 128];
20
146
    }
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
1.48k
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
25
        delete [] padded;
18
25
        paddedLength = size;
19
25
        padded = new char [128 + paddedLength + 128];
20
25
    }
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
3.30k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
3.30k
    static int paddedLength = 512 * 1024;
13
3.30k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
3.30k
    if (paddedLength < size) {
17
30
        delete [] padded;
18
30
        paddedLength = size;
19
30
        padded = new char [128 + paddedLength + 128];
20
30
    }
21
22
3.30k
    memcpy(padded + 128, data, size);
23
24
3.30k
    return (uint8_t *) padded + 128;
25
3.30k
}
PerMessageDeflate.cpp:makePadded(unsigned char const*, unsigned long)
Line
Count
Source
11
306
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
306
    static int paddedLength = 512 * 1024;
13
306
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
306
    if (paddedLength < size) {
17
23
        delete [] padded;
18
23
        paddedLength = size;
19
23
        padded = new char [128 + paddedLength + 128];
20
23
    }
21
22
306
    memcpy(padded + 128, data, size);
23
24
306
    return (uint8_t *) padded + 128;
25
306
}
Http.cpp:makePadded(unsigned char const*, unsigned long)
Line
Count
Source
11
6.43k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
6.43k
    static int paddedLength = 512 * 1024;
13
6.43k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
6.43k
    if (paddedLength < size) {
17
68
        delete [] padded;
18
68
        paddedLength = size;
19
68
        padded = new char [128 + paddedLength + 128];
20
68
    }
21
22
6.43k
    memcpy(padded + 128, data, size);
23
24
6.43k
    return (uint8_t *) padded + 128;
25
6.43k
}
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
5.62M
    for (int i = 0; i < size; ) {
31
5.61M
        unsigned int chunkSize = data[i++];
32
5.61M
        if (!chunkSize) {
33
3.36k
            chunkSize = size - i;
34
5.61M
        } else {
35
5.61M
            chunkSize = std::min<int>(chunkSize, size - i);
36
5.61M
        }
37
38
5.61M
        cb(data + i, chunkSize);
39
5.61M
        i += chunkSize;
40
5.61M
    }
41
11.5k
}
WebSocket.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
1.48k
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
185k
    for (int i = 0; i < size; ) {
31
184k
        unsigned int chunkSize = data[i++];
32
184k
        if (!chunkSize) {
33
479
            chunkSize = size - i;
34
183k
        } else {
35
183k
            chunkSize = std::min<int>(chunkSize, size - i);
36
183k
        }
37
38
184k
        cb(data + i, chunkSize);
39
184k
        i += chunkSize;
40
184k
    }
41
1.48k
}
TopicTree.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
3.30k
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
5.05M
    for (int i = 0; i < size; ) {
31
5.05M
        unsigned int chunkSize = data[i++];
32
5.05M
        if (!chunkSize) {
33
251
            chunkSize = size - i;
34
5.05M
        } else {
35
5.05M
            chunkSize = std::min<int>(chunkSize, size - i);
36
5.05M
        }
37
38
5.05M
        cb(data + i, chunkSize);
39
5.05M
        i += chunkSize;
40
5.05M
    }
41
3.30k
}
PerMessageDeflate.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
306
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
179k
    for (int i = 0; i < size; ) {
31
179k
        unsigned int chunkSize = data[i++];
32
179k
        if (!chunkSize) {
33
174
            chunkSize = size - i;
34
178k
        } else {
35
178k
            chunkSize = std::min<int>(chunkSize, size - i);
36
178k
        }
37
38
179k
        cb(data + i, chunkSize);
39
179k
        i += chunkSize;
40
179k
    }
41
306
}
Http.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
6.43k
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
202k
        unsigned int chunkSize = data[i++];
32
202k
        if (!chunkSize) {
33
2.45k
            chunkSize = size - i;
34
200k
        } else {
35
200k
            chunkSize = std::min<int>(chunkSize, size - i);
36
200k
        }
37
38
202k
        cb(data + i, chunkSize);
39
202k
        i += chunkSize;
40
202k
    }
41
6.43k
}
42
43
/* Reads all bytes to trigger invalid reads */
44
156k
static inline void readBytes(std::string_view s) {
45
156k
    volatile int sum = 0;
46
6.06M
    for (int i = 0; i < s.size(); i++) {
47
5.90M
        sum += s[i];
48
5.90M
    }
49
156k
}
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
156k
static inline void readBytes(std::string_view s) {
45
156k
    volatile int sum = 0;
46
6.06M
    for (int i = 0; i < s.size(); i++) {
47
5.90M
        sum += s[i];
48
5.90M
    }
49
156k
}
50
51
#endif