Coverage Report

Created: 2025-10-13 06:56

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
242k
#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
915k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
915k
    int extra;
35
36
915k
    if (capacity <= 0) {
37
190k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
190k
        (void) min;
39
190k
        return(1);
40
#else
41
        return(min);
42
#endif
43
190k
    }
44
45
724k
    if ((capacity >= max) ||
46
723k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
1.55k
        return(-1);
48
49
    /* Grow by 50% */
50
723k
    extra = (capacity + 1) / 2;
51
52
723k
    if (capacity > max - extra)
53
1.92k
        return(max);
54
55
721k
    return(capacity + extra);
56
723k
}
Unexecuted instantiation: encoding.c:xmlGrowCapacity
parser.c:xmlGrowCapacity
Line
Count
Source
33
25.6k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
25.6k
    int extra;
35
36
25.6k
    if (capacity <= 0) {
37
675
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
675
        (void) min;
39
675
        return(1);
40
#else
41
        return(min);
42
#endif
43
675
    }
44
45
25.0k
    if ((capacity >= max) ||
46
24.8k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
154
        return(-1);
48
49
    /* Grow by 50% */
50
24.8k
    extra = (capacity + 1) / 2;
51
52
24.8k
    if (capacity > max - extra)
53
234
        return(max);
54
55
24.6k
    return(capacity + extra);
56
24.8k
}
Unexecuted instantiation: parserInternals.c:xmlGrowCapacity
Unexecuted instantiation: threads.c:xmlGrowCapacity
tree.c:xmlGrowCapacity
Line
Count
Source
33
230k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
230k
    int extra;
35
36
230k
    if (capacity <= 0) {
37
105k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
105k
        (void) min;
39
105k
        return(1);
40
#else
41
        return(min);
42
#endif
43
105k
    }
44
45
124k
    if ((capacity >= max) ||
46
124k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
0
        return(-1);
48
49
    /* Grow by 50% */
50
124k
    extra = (capacity + 1) / 2;
51
52
124k
    if (capacity > max - extra)
53
0
        return(max);
54
55
124k
    return(capacity + extra);
56
124k
}
uri.c:xmlGrowCapacity
Line
Count
Source
33
37.5k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
37.5k
    int extra;
35
36
37.5k
    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
37.5k
    if ((capacity >= max) ||
46
36.4k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
1.11k
        return(-1);
48
49
    /* Grow by 50% */
50
36.4k
    extra = (capacity + 1) / 2;
51
52
36.4k
    if (capacity > max - extra)
53
1.35k
        return(max);
54
55
35.0k
    return(capacity + extra);
56
36.4k
}
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
622k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
622k
    int extra;
35
36
622k
    if (capacity <= 0) {
37
84.4k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
84.4k
        (void) min;
39
84.4k
        return(1);
40
#else
41
        return(min);
42
#endif
43
84.4k
    }
44
45
537k
    if ((capacity >= max) ||
46
537k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
286
        return(-1);
48
49
    /* Grow by 50% */
50
537k
    extra = (capacity + 1) / 2;
51
52
537k
    if (capacity > max - extra)
53
332
        return(max);
54
55
537k
    return(capacity + extra);
56
537k
}
57
58
#endif /* XML_MEMORY_H_PRIVATE__ */