fastfetch-sys 2.43.0

A neofetch like system information tool
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91

#include "sysctl.h"

#include <stdlib.h>

#ifdef __OpenBSD__
const char* ffSysctlGetString(int mib1, int mib2, FFstrbuf* result)
{
    size_t neededLength;
    if (sysctl((int[]) {mib1, mib2}, 2, NULL, &neededLength, NULL, 0) != 0 || neededLength == 1) //neededLength is 1 for empty strings, because of the null terminator
        return "sysctlbyname() failed";

    ffStrbufEnsureFree(result, (uint32_t) neededLength - 1);

    if (sysctl((int[]) {mib1, mib2}, 2, result->chars + result->length, &neededLength, NULL, 0) == 0)
        result->length += (uint32_t) neededLength - 1;

    result->chars[result->length] = '\0';

    return NULL;
}

int ffSysctlGetInt(int mib1, int mib2, int defaultValue)
{
    int result;
    size_t neededLength = sizeof(result);
    if (sysctl((int[]) {mib1, mib2}, 2, &result, &neededLength, NULL, 0) != 0)
        return defaultValue;
    return result;
}

int64_t ffSysctlGetInt64(int mib1, int mib2, int64_t defaultValue)
{
    int64_t result;
    size_t neededLength = sizeof(result);
    if(sysctl((int[]) {mib1, mib2}, 2, &result, &neededLength, NULL, 0) != 0)
        return defaultValue;
    return result;
}
#else
const char* ffSysctlGetString(const char* propName, FFstrbuf* result)
{
    size_t neededLength;
    if(sysctlbyname(propName, NULL, &neededLength, NULL, 0) != 0 || neededLength == 1) //neededLength is 1 for empty strings, because of the null terminator
        return "sysctlbyname() failed";

    ffStrbufEnsureFree(result, (uint32_t) neededLength - 1);

    if(sysctlbyname(propName, result->chars + result->length, &neededLength, NULL, 0) == 0)
        result->length += (uint32_t) neededLength - 1;

    result->chars[result->length] = '\0';

    return NULL;
}

int ffSysctlGetInt(const char* propName, int defaultValue)
{
    int result;
    size_t neededLength = sizeof(result);
    if(sysctlbyname(propName, &result, &neededLength, NULL, 0) != 0)
        return defaultValue;
    return result;
}

int64_t ffSysctlGetInt64(const char* propName, int64_t defaultValue)
{
    int64_t result;
    size_t neededLength = sizeof(result);
    if(sysctlbyname(propName, &result, &neededLength, NULL, 0) != 0)
        return defaultValue;
    return result;
}
#endif // OpenBSD

void* ffSysctlGetData(int* request, u_int requestLength, size_t* resultLength)
{
    if(sysctl(request, requestLength, NULL, resultLength, NULL, 0) != 0)
        return NULL;

    void* data = malloc(*resultLength);
    if(data == NULL)
        return NULL;

    if(sysctl(request, requestLength, data, resultLength, NULL, 0) != 0)
    {
        free(data);
        return NULL;
    }

    return data;
}