Coverage Report

Created: 2025-10-28 06:46

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
175k
#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
846k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
846k
    int extra;
35
36
846k
    if (capacity <= 0) {
37
177k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
177k
        (void) min;
39
177k
        return(1);
40
#else
41
        return(min);
42
#endif
43
177k
    }
44
45
668k
    if ((capacity >= max) ||
46
667k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
694
        return(-1);
48
49
    /* Grow by 50% */
50
667k
    extra = (capacity + 1) / 2;
51
52
667k
    if (capacity > max - extra)
53
894
        return(max);
54
55
667k
    return(capacity + extra);
56
667k
}
Unexecuted instantiation: encoding.c:xmlGrowCapacity
parser.c:xmlGrowCapacity
Line
Count
Source
33
22.3k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
22.3k
    int extra;
35
36
22.3k
    if (capacity <= 0) {
37
581
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
581
        (void) min;
39
581
        return(1);
40
#else
41
        return(min);
42
#endif
43
581
    }
44
45
21.7k
    if ((capacity >= max) ||
46
21.5k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
150
        return(-1);
48
49
    /* Grow by 50% */
50
21.5k
    extra = (capacity + 1) / 2;
51
52
21.5k
    if (capacity > max - extra)
53
214
        return(max);
54
55
21.3k
    return(capacity + extra);
56
21.5k
}
Unexecuted instantiation: parserInternals.c:xmlGrowCapacity
Unexecuted instantiation: threads.c:xmlGrowCapacity
tree.c:xmlGrowCapacity
Line
Count
Source
33
166k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
166k
    int extra;
35
36
166k
    if (capacity <= 0) {
37
76.5k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
76.5k
        (void) min;
39
76.5k
        return(1);
40
#else
41
        return(min);
42
#endif
43
76.5k
    }
44
45
89.5k
    if ((capacity >= max) ||
46
89.5k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
0
        return(-1);
48
49
    /* Grow by 50% */
50
89.5k
    extra = (capacity + 1) / 2;
51
52
89.5k
    if (capacity > max - extra)
53
0
        return(max);
54
55
89.5k
    return(capacity + extra);
56
89.5k
}
uri.c:xmlGrowCapacity
Line
Count
Source
33
15.8k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
15.8k
    int extra;
35
36
15.8k
    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
15.8k
    if ((capacity >= max) ||
46
15.3k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
483
        return(-1);
48
49
    /* Grow by 50% */
50
15.3k
    extra = (capacity + 1) / 2;
51
52
15.3k
    if (capacity > max - extra)
53
574
        return(max);
54
55
14.7k
    return(capacity + extra);
56
15.3k
}
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
641k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
641k
    int extra;
35
36
641k
    if (capacity <= 0) {
37
100k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
100k
        (void) min;
39
100k
        return(1);
40
#else
41
        return(min);
42
#endif
43
100k
    }
44
45
541k
    if ((capacity >= max) ||
46
541k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
61
        return(-1);
48
49
    /* Grow by 50% */
50
541k
    extra = (capacity + 1) / 2;
51
52
541k
    if (capacity > max - extra)
53
106
        return(max);
54
55
541k
    return(capacity + extra);
56
541k
}
57
58
#endif /* XML_MEMORY_H_PRIVATE__ */