Coverage Report

Created: 2026-03-06 06:39

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
3.92M
#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
21.8M
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
21.8M
    int extra;
35
36
21.8M
    if (capacity <= 0) {
37
4.95M
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
4.95M
        (void) min;
39
4.95M
        return(1);
40
#else
41
        return(min);
42
#endif
43
4.95M
    }
44
45
16.8M
    if ((capacity >= max) ||
46
16.8M
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
4.42k
        return(-1);
48
49
    /* Grow by 50% */
50
16.8M
    extra = (capacity + 1) / 2;
51
52
16.8M
    if (capacity > max - extra)
53
6.29k
        return(max);
54
55
16.8M
    return(capacity + extra);
56
16.8M
}
Unexecuted instantiation: encoding.c:xmlGrowCapacity
parser.c:xmlGrowCapacity
Line
Count
Source
33
3.83M
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
3.83M
    int extra;
35
36
3.83M
    if (capacity <= 0) {
37
876k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
876k
        (void) min;
39
876k
        return(1);
40
#else
41
        return(min);
42
#endif
43
876k
    }
44
45
2.96M
    if ((capacity >= max) ||
46
2.95M
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
3.49k
        return(-1);
48
49
    /* Grow by 50% */
50
2.95M
    extra = (capacity + 1) / 2;
51
52
2.95M
    if (capacity > max - extra)
53
5.03k
        return(max);
54
55
2.95M
    return(capacity + extra);
56
2.95M
}
Unexecuted instantiation: parserInternals.c:xmlGrowCapacity
Unexecuted instantiation: threads.c:xmlGrowCapacity
tree.c:xmlGrowCapacity
Line
Count
Source
33
1.57M
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
1.57M
    int extra;
35
36
1.57M
    if (capacity <= 0) {
37
711k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
711k
        (void) min;
39
711k
        return(1);
40
#else
41
        return(min);
42
#endif
43
711k
    }
44
45
859k
    if ((capacity >= max) ||
46
859k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
0
        return(-1);
48
49
    /* Grow by 50% */
50
859k
    extra = (capacity + 1) / 2;
51
52
859k
    if (capacity > max - extra)
53
0
        return(max);
54
55
859k
    return(capacity + extra);
56
859k
}
uri.c:xmlGrowCapacity
Line
Count
Source
33
96.3k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
96.3k
    int extra;
35
36
96.3k
    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
96.3k
    if ((capacity >= max) ||
46
95.7k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
657
        return(-1);
48
49
    /* Grow by 50% */
50
95.7k
    extra = (capacity + 1) / 2;
51
52
95.7k
    if (capacity > max - extra)
53
765
        return(max);
54
55
94.9k
    return(capacity + extra);
56
95.7k
}
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
16.3M
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
16.3M
    int extra;
35
36
16.3M
    if (capacity <= 0) {
37
3.36M
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
3.36M
        (void) min;
39
3.36M
        return(1);
40
#else
41
        return(min);
42
#endif
43
3.36M
    }
44
45
12.9M
    if ((capacity >= max) ||
46
12.9M
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
267
        return(-1);
48
49
    /* Grow by 50% */
50
12.9M
    extra = (capacity + 1) / 2;
51
52
12.9M
    if (capacity > max - extra)
53
492
        return(max);
54
55
12.9M
    return(capacity + extra);
56
12.9M
}
57
58
#endif /* XML_MEMORY_H_PRIVATE__ */