Coverage Report

Created: 2025-07-12 06:32

/src/libxml2/include/private/memory.h
Line
Count
Source (jump to first uncovered line)
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
944k
#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
683k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
683k
    int extra;
34
35
683k
    if (capacity <= 0) {
36
153k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
37
153k
        (void) min;
38
153k
        return(1);
39
#else
40
        return(min);
41
#endif
42
153k
    }
43
44
529k
    if ((capacity >= max) ||
45
529k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
0
        return(-1);
47
48
    /* Grow by 50% */
49
529k
    extra = (capacity + 1) / 2;
50
51
529k
    if (capacity > max - extra)
52
0
        return(max);
53
54
529k
    return(capacity + extra);
55
529k
}
parser.c:xmlGrowCapacity
Line
Count
Source
32
440k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
440k
    int extra;
34
35
440k
    if (capacity <= 0) {
36
61.0k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
37
61.0k
        (void) min;
38
61.0k
        return(1);
39
#else
40
        return(min);
41
#endif
42
61.0k
    }
43
44
379k
    if ((capacity >= max) ||
45
379k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
0
        return(-1);
47
48
    /* Grow by 50% */
49
379k
    extra = (capacity + 1) / 2;
50
51
379k
    if (capacity > max - extra)
52
0
        return(max);
53
54
379k
    return(capacity + extra);
55
379k
}
Unexecuted instantiation: parserInternals.c:xmlGrowCapacity
Unexecuted instantiation: threads.c:xmlGrowCapacity
tree.c:xmlGrowCapacity
Line
Count
Source
32
71.4k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
71.4k
    int extra;
34
35
71.4k
    if (capacity <= 0) {
36
30.7k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
37
30.7k
        (void) min;
38
30.7k
        return(1);
39
#else
40
        return(min);
41
#endif
42
30.7k
    }
43
44
40.6k
    if ((capacity >= max) ||
45
40.6k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
0
        return(-1);
47
48
    /* Grow by 50% */
49
40.6k
    extra = (capacity + 1) / 2;
50
51
40.6k
    if (capacity > max - extra)
52
0
        return(max);
53
54
40.6k
    return(capacity + extra);
55
40.6k
}
uri.c:xmlGrowCapacity
Line
Count
Source
32
20.0k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
20.0k
    int extra;
34
35
20.0k
    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
20.0k
    if ((capacity >= max) ||
45
20.0k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
0
        return(-1);
47
48
    /* Grow by 50% */
49
20.0k
    extra = (capacity + 1) / 2;
50
51
20.0k
    if (capacity > max - extra)
52
0
        return(max);
53
54
20.0k
    return(capacity + extra);
55
20.0k
}
valid.c:xmlGrowCapacity
Line
Count
Source
32
848
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
848
    int extra;
34
35
848
    if (capacity <= 0) {
36
556
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
37
556
        (void) min;
38
556
        return(1);
39
#else
40
        return(min);
41
#endif
42
556
    }
43
44
292
    if ((capacity >= max) ||
45
292
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
0
        return(-1);
47
48
    /* Grow by 50% */
49
292
    extra = (capacity + 1) / 2;
50
51
292
    if (capacity > max - extra)
52
0
        return(max);
53
54
292
    return(capacity + extra);
55
292
}
Unexecuted instantiation: xmlmemory.c:xmlGrowCapacity
Unexecuted instantiation: catalog.c:xmlGrowCapacity
Unexecuted instantiation: HTMLparser.c:xmlGrowCapacity
xmlregexp.c:xmlGrowCapacity
Line
Count
Source
32
150k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
150k
    int extra;
34
35
150k
    if (capacity <= 0) {
36
61.5k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
37
61.5k
        (void) min;
38
61.5k
        return(1);
39
#else
40
        return(min);
41
#endif
42
61.5k
    }
43
44
89.3k
    if ((capacity >= max) ||
45
89.3k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
0
        return(-1);
47
48
    /* Grow by 50% */
49
89.3k
    extra = (capacity + 1) / 2;
50
51
89.3k
    if (capacity > max - extra)
52
0
        return(max);
53
54
89.3k
    return(capacity + extra);
55
89.3k
}
Unexecuted instantiation: xmlschemas.c:xmlGrowCapacity
Unexecuted instantiation: xpath.c:xmlGrowCapacity
Unexecuted instantiation: encoding.c:xmlGrowCapacity
Unexecuted instantiation: pattern.c:xmlGrowCapacity
Unexecuted instantiation: xmlreader.c:xmlGrowCapacity
Unexecuted instantiation: xinclude.c:xmlGrowCapacity
56
57
#endif /* XML_MEMORY_H_PRIVATE__ */