Coverage Report

Created: 2026-02-26 06:58

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
881k
#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
2.41M
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
2.41M
    int extra;
34
35
2.41M
    if (capacity <= 0) {
36
485k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
37
485k
        (void) min;
38
485k
        return(1);
39
#else
40
        return(min);
41
#endif
42
485k
    }
43
44
1.92M
    if ((capacity >= max) ||
45
1.92M
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
238
        return(-1);
47
48
    /* Grow by 50% */
49
1.92M
    extra = (capacity + 1) / 2;
50
51
1.92M
    if (capacity > max - extra)
52
458
        return(max);
53
54
1.92M
    return(capacity + extra);
55
1.92M
}
parser.c:xmlGrowCapacity
Line
Count
Source
32
212k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
212k
    int extra;
34
35
212k
    if (capacity <= 0) {
36
29.4k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
37
29.4k
        (void) min;
38
29.4k
        return(1);
39
#else
40
        return(min);
41
#endif
42
29.4k
    }
43
44
183k
    if ((capacity >= max) ||
45
183k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
238
        return(-1);
47
48
    /* Grow by 50% */
49
183k
    extra = (capacity + 1) / 2;
50
51
183k
    if (capacity > max - extra)
52
394
        return(max);
53
54
182k
    return(capacity + extra);
55
183k
}
Unexecuted instantiation: parserInternals.c:xmlGrowCapacity
Unexecuted instantiation: threads.c:xmlGrowCapacity
tree.c:xmlGrowCapacity
Line
Count
Source
32
269k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
269k
    int extra;
34
35
269k
    if (capacity <= 0) {
36
109k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
37
109k
        (void) min;
38
109k
        return(1);
39
#else
40
        return(min);
41
#endif
42
109k
    }
43
44
160k
    if ((capacity >= max) ||
45
160k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
0
        return(-1);
47
48
    /* Grow by 50% */
49
160k
    extra = (capacity + 1) / 2;
50
51
160k
    if (capacity > max - extra)
52
0
        return(max);
53
54
160k
    return(capacity + extra);
55
160k
}
uri.c:xmlGrowCapacity
Line
Count
Source
32
45.7k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
45.7k
    int extra;
34
35
45.7k
    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
45.7k
    if ((capacity >= max) ||
45
45.7k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
0
        return(-1);
47
48
    /* Grow by 50% */
49
45.7k
    extra = (capacity + 1) / 2;
50
51
45.7k
    if (capacity > max - extra)
52
64
        return(max);
53
54
45.6k
    return(capacity + extra);
55
45.7k
}
Unexecuted instantiation: valid.c:xmlGrowCapacity
Unexecuted instantiation: xmlmemory.c:xmlGrowCapacity
Unexecuted instantiation: catalog.c:xmlGrowCapacity
Unexecuted instantiation: HTMLparser.c:xmlGrowCapacity
Unexecuted instantiation: xmlregexp.c:xmlGrowCapacity
Unexecuted instantiation: xmlschemas.c:xmlGrowCapacity
xinclude.c:xmlGrowCapacity
Line
Count
Source
32
22.8k
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
22.8k
    int extra;
34
35
22.8k
    if (capacity <= 0) {
36
13.2k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
37
13.2k
        (void) min;
38
13.2k
        return(1);
39
#else
40
        return(min);
41
#endif
42
13.2k
    }
43
44
9.65k
    if ((capacity >= max) ||
45
9.65k
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
0
        return(-1);
47
48
    /* Grow by 50% */
49
9.65k
    extra = (capacity + 1) / 2;
50
51
9.65k
    if (capacity > max - extra)
52
0
        return(max);
53
54
9.65k
    return(capacity + extra);
55
9.65k
}
xpath.c:xmlGrowCapacity
Line
Count
Source
32
1.86M
xmlGrowCapacity(int capacity, size_t elemSize, int min, int max) {
33
1.86M
    int extra;
34
35
1.86M
    if (capacity <= 0) {
36
333k
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
37
333k
        (void) min;
38
333k
        return(1);
39
#else
40
        return(min);
41
#endif
42
333k
    }
43
44
1.52M
    if ((capacity >= max) ||
45
1.52M
        ((size_t) capacity > SIZE_MAX / 2 / elemSize))
46
0
        return(-1);
47
48
    /* Grow by 50% */
49
1.52M
    extra = (capacity + 1) / 2;
50
51
1.52M
    if (capacity > max - extra)
52
0
        return(max);
53
54
1.52M
    return(capacity + extra);
55
1.52M
}
Unexecuted instantiation: encoding.c:xmlGrowCapacity
Unexecuted instantiation: pattern.c:xmlGrowCapacity
Unexecuted instantiation: xmlreader.c:xmlGrowCapacity
56
57
#endif /* XML_MEMORY_H_PRIVATE__ */