Coverage Report

Created: 2025-12-05 06:15

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
3.09k
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
35
        delete [] padded;
18
35
        paddedLength = size;
19
35
        padded = new char [128 + paddedLength + 128];
20
35
    }
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
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
21
        delete [] padded;
18
21
        paddedLength = size;
19
21
        padded = new char [128 + paddedLength + 128];
20
21
    }
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
6.31k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
6.31k
    static int paddedLength = 512 * 1024;
13
6.31k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
6.31k
    if (paddedLength < size) {
17
64
        delete [] padded;
18
64
        paddedLength = size;
19
64
        padded = new char [128 + paddedLength + 128];
20
64
    }
21
22
6.31k
    memcpy(padded + 128, data, size);
23
24
6.31k
    return (uint8_t *) padded + 128;
25
6.31k
}
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
6.86M
    for (int i = 0; i < size; ) {
31
6.85M
        unsigned int chunkSize = data[i++];
32
6.85M
        if (!chunkSize) {
33
3.37k
            chunkSize = size - i;
34
6.85M
        } else {
35
6.85M
            chunkSize = std::min<int>(chunkSize, size - i);
36
6.85M
        }
37
38
6.85M
        cb(data + i, chunkSize);
39
6.85M
        i += chunkSize;
40
6.85M
    }
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
186k
    for (int i = 0; i < size; ) {
31
184k
        unsigned int chunkSize = data[i++];
32
184k
        if (!chunkSize) {
33
434
            chunkSize = size - i;
34
184k
        } else {
35
184k
            chunkSize = std::min<int>(chunkSize, size - i);
36
184k
        }
37
38
184k
        cb(data + i, chunkSize);
39
184k
        i += chunkSize;
40
184k
    }
41
1.43k
}
TopicTree.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
3.09k
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
5.72M
    for (int i = 0; i < size; ) {
31
5.72M
        unsigned int chunkSize = data[i++];
32
5.72M
        if (!chunkSize) {
33
239
            chunkSize = size - i;
34
5.72M
        } else {
35
5.72M
            chunkSize = std::min<int>(chunkSize, size - i);
36
5.72M
        }
37
38
5.72M
        cb(data + i, chunkSize);
39
5.72M
        i += chunkSize;
40
5.72M
    }
41
3.09k
}
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
766k
    for (int i = 0; i < size; ) {
31
766k
        unsigned int chunkSize = data[i++];
32
766k
        if (!chunkSize) {
33
186
            chunkSize = size - i;
34
766k
        } else {
35
766k
            chunkSize = std::min<int>(chunkSize, size - i);
36
766k
        }
37
38
766k
        cb(data + i, chunkSize);
39
766k
        i += chunkSize;
40
766k
    }
41
304
}
Http.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
6.31k
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
187k
    for (int i = 0; i < size; ) {
31
181k
        unsigned int chunkSize = data[i++];
32
181k
        if (!chunkSize) {
33
2.51k
            chunkSize = size - i;
34
179k
        } else {
35
179k
            chunkSize = std::min<int>(chunkSize, size - i);
36
179k
        }
37
38
181k
        cb(data + i, chunkSize);
39
181k
        i += chunkSize;
40
181k
    }
41
6.31k
}
42
43
/* Reads all bytes to trigger invalid reads */
44
159k
static inline void readBytes(std::string_view s) {
45
159k
    volatile int sum = 0;
46
4.40M
    for (int i = 0; i < s.size(); i++) {
47
4.24M
        sum += s[i];
48
4.24M
    }
49
159k
}
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
159k
static inline void readBytes(std::string_view s) {
45
159k
    volatile int sum = 0;
46
4.40M
    for (int i = 0; i < s.size(); i++) {
47
4.24M
        sum += s[i];
48
4.24M
    }
49
159k
}
50
51
#endif