Coverage Report

Created: 2025-08-26 07:08

/src/libxml2/include/private/memory.h
Line
Count
Source
1
#ifndef XML_MEMORY_H_PRIVATE__
2
#define XML_MEMORY_H_PRIVATE__
3
4
#include "../../libxml.h"
5
6
#include <limits.h>
7
#include <stddef.h>
8
9
#ifndef SIZE_MAX
10
  #define SIZE_MAX ((size_t) -1)
11
#endif
12
13
4.80M
#define XML_MAX_ITEMS 1000000000 /* 1 billion */
14
15
XML_HIDDEN void
16
xmlInitMemoryInternal(void);
17
XML_HIDDEN void
18
xmlCleanupMemoryInternal(void);
19
20
/**
21
 * xmlGrowCapacity:
22
 * @array:  pointer to array
23
 * @capacity:  pointer to capacity (in/out)
24
 * @elemSize:  size of an element in bytes
25
 * @min:  elements in initial allocation
26
 * @max:  maximum elements in the array
27
 *
28
 * Grow an array by at least one element, checking for overflow.
29
 *
30
 * Returns the new array size on success, -1 on failure.
31
 */
32
static XML_INLINE int
33
29.2M
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
29.2M
    int extra;
35
36
29.2M
    if (capacity <= 0) {
37
6.53M
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
6.53M
        (void) min;
39
6.53M
        return(1);
40
#else
41
        return(min);
42
#endif
43
6.53M
    }
44
45
22.7M
    if ((capacity >= max) ||
46
22.7M
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
3.32k
        return(-1);
48
49
    /* Grow by 50% */
50
22.7M
    extra = (capacity + 1) / 2;
51
52
22.7M
    if (capacity > max - extra)
53
4.38k
        return(max);
54
55
22.7M
    return(capacity + extra);
56
22.7M
}
Unexecuted instantiation: encoding.c:xmlGrowCapacity
parser.c:xmlGrowCapacity
Line
Count
Source
33
4.69M
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
4.69M
    int extra;
35
36
4.69M
    if (capacity <= 0) {
37
1.14M
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
1.14M
        (void) min;
39
1.14M
        return(1);
40
#else
41
        return(min);
42
#endif
43
1.14M
    }
44
45
3.55M
    if ((capacity >= max) ||
46
3.55M
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
2.06k
        return(-1);
48
49
    /* Grow by 50% */
50
3.55M
    extra = (capacity + 1) / 2;
51
52
3.55M
    if (capacity > max - extra)
53
2.58k
        return(max);
54
55
3.55M
    return(capacity + extra);
56
3.55M
}
Unexecuted instantiation: parserInternals.c:xmlGrowCapacity
Unexecuted instantiation: threads.c:xmlGrowCapacity
tree.c:xmlGrowCapacity
Line
Count
Source
33
1.82M
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
1.82M
    int extra;
35
36
1.82M
    if (capacity <= 0) {
37
867k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
867k
        (void) min;
39
867k
        return(1);
40
#else
41
        return(min);
42
#endif
43
867k
    }
44
45
953k
    if ((capacity >= max) ||
46
953k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
0
        return(-1);
48
49
    /* Grow by 50% */
50
953k
    extra = (capacity + 1) / 2;
51
52
953k
    if (capacity > max - extra)
53
0
        return(max);
54
55
953k
    return(capacity + extra);
56
953k
}
uri.c:xmlGrowCapacity
Line
Count
Source
33
116k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
116k
    int extra;
35
36
116k
    if (capacity <= 0) {
37
0
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
0
        (void) min;
39
0
        return(1);
40
#else
41
        return(min);
42
#endif
43
0
    }
44
45
116k
    if ((capacity >= max) ||
46
116k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
1.01k
        return(-1);
48
49
    /* Grow by 50% */
50
115k
    extra = (capacity + 1) / 2;
51
52
115k
    if (capacity > max - extra)
53
1.21k
        return(max);
54
55
114k
    return(capacity + extra);
56
115k
}
Unexecuted instantiation: valid.c:xmlGrowCapacity
Unexecuted instantiation: xmlmemory.c:xmlGrowCapacity
Unexecuted instantiation: catalog.c:xmlGrowCapacity
Unexecuted instantiation: HTMLparser.c:xmlGrowCapacity
Unexecuted instantiation: xinclude.c:xmlGrowCapacity
xpath.c:xmlGrowCapacity
Line
Count
Source
33
22.6M
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
22.6M
    int extra;
35
36
22.6M
    if (capacity <= 0) {
37
4.52M
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
4.52M
        (void) min;
39
4.52M
        return(1);
40
#else
41
        return(min);
42
#endif
43
4.52M
    }
44
45
18.1M
    if ((capacity >= max) ||
46
18.1M
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
241
        return(-1);
48
49
    /* Grow by 50% */
50
18.1M
    extra = (capacity + 1) / 2;
51
52
18.1M
    if (capacity > max - extra)
53
591
        return(max);
54
55
18.1M
    return(capacity + extra);
56
18.1M
}
57
58
#endif /* XML_MEMORY_H_PRIVATE__ */