Coverage Report

Created: 2026-01-19 06:38

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
130k
#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
811k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
811k
    int extra;
35
36
811k
    if (capacity <= 0) {
37
148k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
148k
        (void) min;
39
148k
        return(1);
40
#else
41
        return(min);
42
#endif
43
148k
    }
44
45
662k
    if ((capacity >= max) ||
46
661k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
844
        return(-1);
48
49
    /* Grow by 50% */
50
661k
    extra = (capacity + 1) / 2;
51
52
661k
    if (capacity > max - extra)
53
1.06k
        return(max);
54
55
660k
    return(capacity + extra);
56
661k
}
Unexecuted instantiation: encoding.c:xmlGrowCapacity
parser.c:xmlGrowCapacity
Line
Count
Source
33
21.1k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
21.1k
    int extra;
35
36
21.1k
    if (capacity <= 0) {
37
485
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
485
        (void) min;
39
485
        return(1);
40
#else
41
        return(min);
42
#endif
43
485
    }
44
45
20.6k
    if ((capacity >= max) ||
46
20.4k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
202
        return(-1);
48
49
    /* Grow by 50% */
50
20.4k
    extra = (capacity + 1) / 2;
51
52
20.4k
    if (capacity > max - extra)
53
313
        return(max);
54
55
20.1k
    return(capacity + extra);
56
20.4k
}
Unexecuted instantiation: parserInternals.c:xmlGrowCapacity
Unexecuted instantiation: threads.c:xmlGrowCapacity
tree.c:xmlGrowCapacity
Line
Count
Source
33
118k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
118k
    int extra;
35
36
118k
    if (capacity <= 0) {
37
57.9k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
57.9k
        (void) min;
39
57.9k
        return(1);
40
#else
41
        return(min);
42
#endif
43
57.9k
    }
44
45
60.9k
    if ((capacity >= max) ||
46
60.9k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
0
        return(-1);
48
49
    /* Grow by 50% */
50
60.9k
    extra = (capacity + 1) / 2;
51
52
60.9k
    if (capacity > max - extra)
53
0
        return(max);
54
55
60.9k
    return(capacity + extra);
56
60.9k
}
uri.c:xmlGrowCapacity
Line
Count
Source
33
20.5k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
20.5k
    int extra;
35
36
20.5k
    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
20.5k
    if ((capacity >= max) ||
46
20.1k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
496
        return(-1);
48
49
    /* Grow by 50% */
50
20.1k
    extra = (capacity + 1) / 2;
51
52
20.1k
    if (capacity > max - extra)
53
602
        return(max);
54
55
19.5k
    return(capacity + extra);
56
20.1k
}
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
650k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
34
650k
    int extra;
35
36
650k
    if (capacity <= 0) {
37
90.2k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
38
90.2k
        (void) min;
39
90.2k
        return(1);
40
#else
41
        return(min);
42
#endif
43
90.2k
    }
44
45
560k
    if ((capacity >= max) ||
46
560k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
47
146
        return(-1);
48
49
    /* Grow by 50% */
50
560k
    extra = (capacity + 1) / 2;
51
52
560k
    if (capacity > max - extra)
53
146
        return(max);
54
55
560k
    return(capacity + extra);
56
560k
}
57
58
#endif /* XML_MEMORY_H_PRIVATE__ */