Coverage Report

Created: 2025-11-09 06:30

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
49.7k
#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
 * @array:  pointer to array
22
 * @capacity:  pointer to capacity (in/out)
23
 * @elemSize:  size of an element in bytes
24
 * @min:  elements in initial allocation
25
 * @max:  maximum elements in the array
26
 *
27
 * Grow an array by at least one element, checking for overflow.
28
 *
29
 * Returns the new array size on success, -1 on failure.
30
 */
31
static XML_INLINE int
32
798k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
798k
    int extra;
34
35
798k
    if (capacity <= 0) {
36
480k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
37
480k
        (void) min;
38
480k
        return(1);
39
#else
40
        return(min);
41
#endif
42
480k
    }
43
44
317k
    if ((capacity >= max) ||
45
272k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
44.5k
        return(-1);
47
48
    /* Grow by 50% */
49
272k
    extra = (capacity + 1) / 2;
50
51
272k
    if (capacity > max - extra)
52
28
        return(max);
53
54
272k
    return(capacity + extra);
55
272k
}
parser.c:xmlGrowCapacity
Line
Count
Source
32
1
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
1
    int extra;
34
35
1
    if (capacity <= 0) {
36
0
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
37
0
        (void) min;
38
0
        return(1);
39
#else
40
        return(min);
41
#endif
42
0
    }
43
44
1
    if ((capacity >= max) ||
45
1
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
0
        return(-1);
47
48
    /* Grow by 50% */
49
1
    extra = (capacity + 1) / 2;
50
51
1
    if (capacity > max - extra)
52
0
        return(max);
53
54
1
    return(capacity + extra);
55
1
}
Unexecuted instantiation: parserInternals.c:xmlGrowCapacity
Unexecuted instantiation: threads.c:xmlGrowCapacity
Unexecuted instantiation: tree.c:xmlGrowCapacity
Unexecuted instantiation: uri.c:xmlGrowCapacity
Unexecuted instantiation: valid.c:xmlGrowCapacity
Unexecuted instantiation: xmlmemory.c:xmlGrowCapacity
Unexecuted instantiation: c14n.c:xmlGrowCapacity
Unexecuted instantiation: catalog.c:xmlGrowCapacity
HTMLparser.c:xmlGrowCapacity
Line
Count
Source
32
1
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
1
    int extra;
34
35
1
    if (capacity <= 0) {
36
0
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
37
0
        (void) min;
38
0
        return(1);
39
#else
40
        return(min);
41
#endif
42
0
    }
43
44
1
    if ((capacity >= max) ||
45
1
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
0
        return(-1);
47
48
    /* Grow by 50% */
49
1
    extra = (capacity + 1) / 2;
50
51
1
    if (capacity > max - extra)
52
0
        return(max);
53
54
1
    return(capacity + extra);
55
1
}
pattern.c:xmlGrowCapacity
Line
Count
Source
32
49.7k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
49.7k
    int extra;
34
35
49.7k
    if (capacity <= 0) {
36
16.9k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
37
16.9k
        (void) min;
38
16.9k
        return(1);
39
#else
40
        return(min);
41
#endif
42
16.9k
    }
43
44
32.7k
    if ((capacity >= max) ||
45
32.7k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
0
        return(-1);
47
48
    /* Grow by 50% */
49
32.7k
    extra = (capacity + 1) / 2;
50
51
32.7k
    if (capacity > max - extra)
52
0
        return(max);
53
54
32.7k
    return(capacity + extra);
55
32.7k
}
Unexecuted instantiation: xmlreader.c:xmlGrowCapacity
Unexecuted instantiation: xmlregexp.c:xmlGrowCapacity
Unexecuted instantiation: xmlschemas.c:xmlGrowCapacity
Unexecuted instantiation: xinclude.c:xmlGrowCapacity
xpath.c:xmlGrowCapacity
Line
Count
Source
32
748k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
748k
    int extra;
34
35
748k
    if (capacity <= 0) {
36
463k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
37
463k
        (void) min;
38
463k
        return(1);
39
#else
40
        return(min);
41
#endif
42
463k
    }
43
44
284k
    if ((capacity >= max) ||
45
239k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
44.5k
        return(-1);
47
48
    /* Grow by 50% */
49
239k
    extra = (capacity + 1) / 2;
50
51
239k
    if (capacity > max - extra)
52
28
        return(max);
53
54
239k
    return(capacity + extra);
55
239k
}
Unexecuted instantiation: encoding.c:xmlGrowCapacity
56
57
#endif /* XML_MEMORY_H_PRIVATE__ */