Coverage Report

Created: 2025-11-24 06:51

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/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
4.62M
#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
25.5M
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
25.5M
    int extra;
35
36
25.5M
    if (capacity <= 0) {
37
5.93M
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
5.93M
        (void) min;
39
5.93M
        return(1);
40
#else
41
        return(min);
42
#endif
43
5.93M
    }
44
45
19.5M
    if ((capacity >= max) ||
46
19.5M
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
3.94k
        return(-1);
48
49
    /* Grow by 50% */
50
19.5M
    extra = (capacity + 1) / 2;
51
52
19.5M
    if (capacity > max - extra)
53
6.88k
        return(max);
54
55
19.5M
    return(capacity + extra);
56
19.5M
}
Unexecuted instantiation: encoding.c:xmlGrowCapacity
parser.c:xmlGrowCapacity
Line
Count
Source
33
4.20M
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
4.20M
    int extra;
35
36
4.20M
    if (capacity <= 0) {
37
996k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
996k
        (void) min;
39
996k
        return(1);
40
#else
41
        return(min);
42
#endif
43
996k
    }
44
45
3.20M
    if ((capacity >= max) ||
46
3.20M
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
2.64k
        return(-1);
48
49
    /* Grow by 50% */
50
3.20M
    extra = (capacity + 1) / 2;
51
52
3.20M
    if (capacity > max - extra)
53
4.61k
        return(max);
54
55
3.20M
    return(capacity + extra);
56
3.20M
}
Unexecuted instantiation: parserInternals.c:xmlGrowCapacity
Unexecuted instantiation: threads.c:xmlGrowCapacity
tree.c:xmlGrowCapacity
Line
Count
Source
33
2.00M
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
2.00M
    int extra;
35
36
2.00M
    if (capacity <= 0) {
37
904k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
904k
        (void) min;
39
904k
        return(1);
40
#else
41
        return(min);
42
#endif
43
904k
    }
44
45
1.09M
    if ((capacity >= max) ||
46
1.09M
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
0
        return(-1);
48
49
    /* Grow by 50% */
50
1.09M
    extra = (capacity + 1) / 2;
51
52
1.09M
    if (capacity > max - extra)
53
0
        return(max);
54
55
1.09M
    return(capacity + extra);
56
1.09M
}
uri.c:xmlGrowCapacity
Line
Count
Source
33
86.4k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
86.4k
    int extra;
35
36
86.4k
    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
86.4k
    if ((capacity >= max) ||
46
85.8k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
588
        return(-1);
48
49
    /* Grow by 50% */
50
85.8k
    extra = (capacity + 1) / 2;
51
52
85.8k
    if (capacity > max - extra)
53
839
        return(max);
54
55
85.0k
    return(capacity + extra);
56
85.8k
}
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
19.2M
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
19.2M
    int extra;
35
36
19.2M
    if (capacity <= 0) {
37
4.03M
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
4.03M
        (void) min;
39
4.03M
        return(1);
40
#else
41
        return(min);
42
#endif
43
4.03M
    }
44
45
15.1M
    if ((capacity >= max) ||
46
15.1M
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
717
        return(-1);
48
49
    /* Grow by 50% */
50
15.1M
    extra = (capacity + 1) / 2;
51
52
15.1M
    if (capacity > max - extra)
53
1.42k
        return(max);
54
55
15.1M
    return(capacity + extra);
56
15.1M
}
57
58
#endif /* XML_MEMORY_H_PRIVATE__ */