summaryrefslogtreecommitdiffstats
path: root/src/basic/errno-list.c
blob: 2aeb38c438dd3783e71a1962bf047d9ed6bc2b63 (plain)
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
/* SPDX-License-Identifier: LGPL-2.1-or-later */

#include <errno.h>
#include <string.h>

#include "errno-list.h"
#include "macro.h"

static const struct errno_name* lookup_errno(register const char *str,
                                             register GPERF_LEN_TYPE len);

#include "errno-from-name.h"
#include "errno-to-name.h"

const char *errno_to_name(int id) {

        if (id < 0)
                id = -id;

        if ((size_t) id >= ELEMENTSOF(errno_names))
                return NULL;

        return errno_names[id];
}

int errno_from_name(const char *name) {
        const struct errno_name *sc;

        assert(name);

        sc = lookup_errno(name, strlen(name));
        if (!sc)
                return -EINVAL;

        assert(sc->id > 0);
        return sc->id;
}