Coverage Report

Created: 2026-03-17 06:52

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
152
        delete [] padded;
18
152
        paddedLength = size;
19
152
        padded = new char [128 + paddedLength + 128];
20
152
    }
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
1.48k
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
3.07k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
3.07k
    static int paddedLength = 512 * 1024;
13
3.07k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
3.07k
    if (paddedLength < size) {
17
33
        delete [] padded;
18
33
        paddedLength = size;
19
33
        padded = new char [128 + paddedLength + 128];
20
33
    }
21
22
3.07k
    memcpy(padded + 128, data, size);
23
24
3.07k
    return (uint8_t *) padded + 128;
25
3.07k
}
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
24
        delete [] padded;
18
24
        paddedLength = size;
19
24
        padded = new char [128 + paddedLength + 128];
20
24
    }
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
6.32k
static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
12
6.32k
    static int paddedLength = 512 * 1024;
13
6.32k
    static char *padded = new char[128 + paddedLength + 128];
14
15
    /* Increase landing area if required */
16
6.32k
    if (paddedLength < size) {
17
68
        delete [] padded;
18
68
        paddedLength = size;
19
68
        padded = new char [128 + paddedLength + 128];
20
68
    }
21
22
6.32k
    memcpy(padded + 128, data, size);
23
24
6.32k
    return (uint8_t *) padded + 128;
25
6.32k
}
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
5.77M
    for (int i = 0; i < size; ) {
31
5.75M
        unsigned int chunkSize = data[i++];
32
5.75M
        if (!chunkSize) {
33
3.40k
            chunkSize = size - i;
34
5.75M
        } else {
35
5.75M
            chunkSize = std::min<int>(chunkSize, size - i);
36
5.75M
        }
37
38
5.75M
        cb(data + i, chunkSize);
39
5.75M
        i += chunkSize;
40
5.75M
    }
41
11.1k
}
WebSocket.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
1.48k
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
164k
    for (int i = 0; i < size; ) {
31
163k
        unsigned int chunkSize = data[i++];
32
163k
        if (!chunkSize) {
33
462
            chunkSize = size - i;
34
162k
        } else {
35
162k
            chunkSize = std::min<int>(chunkSize, size - i);
36
162k
        }
37
38
163k
        cb(data + i, chunkSize);
39
163k
        i += chunkSize;
40
163k
    }
41
1.48k
}
TopicTree.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
3.07k
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
5.37M
    for (int i = 0; i < size; ) {
31
5.36M
        unsigned int chunkSize = data[i++];
32
5.36M
        if (!chunkSize) {
33
264
            chunkSize = size - i;
34
5.36M
        } else {
35
5.36M
            chunkSize = std::min<int>(chunkSize, size - i);
36
5.36M
        }
37
38
5.36M
        cb(data + i, chunkSize);
39
5.36M
        i += chunkSize;
40
5.36M
    }
41
3.07k
}
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
70.0k
    for (int i = 0; i < size; ) {
31
69.7k
        unsigned int chunkSize = data[i++];
32
69.7k
        if (!chunkSize) {
33
192
            chunkSize = size - i;
34
69.5k
        } else {
35
69.5k
            chunkSize = std::min<int>(chunkSize, size - i);
36
69.5k
        }
37
38
69.7k
        cb(data + i, chunkSize);
39
69.7k
        i += chunkSize;
40
69.7k
    }
41
306
}
Http.cpp:makeChunked(unsigned char const*, unsigned long, std::__1::function<void (unsigned char const*, unsigned long)>)
Line
Count
Source
28
6.32k
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
165k
    for (int i = 0; i < size; ) {
31
159k
        unsigned int chunkSize = data[i++];
32
159k
        if (!chunkSize) {
33
2.48k
            chunkSize = size - i;
34
156k
        } else {
35
156k
            chunkSize = std::min<int>(chunkSize, size - i);
36
156k
        }
37
38
159k
        cb(data + i, chunkSize);
39
159k
        i += chunkSize;
40
159k
    }
41
6.32k
}
42
43
/* Reads all bytes to trigger invalid reads */
44
147k
static inline void readBytes(std::string_view s) {
45
147k
    volatile int sum = 0;
46
5.68M
    for (int i = 0; i < s.size(); i++) {
47
5.53M
        sum += s[i];
48
5.53M
    }
49
147k
}
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
147k
static inline void readBytes(std::string_view s) {
45
147k
    volatile int sum = 0;
46
5.68M
    for (int i = 0; i < s.size(); i++) {
47
5.53M
        sum += s[i];
48
5.53M
    }
49
147k
}
50
51
#endif