Yu Watanabe
149a8e6306
Major distributions already have glibc >= 2.34. Let's bump the required minimum version. Note, glibc-2.34 was released on 2021-08-01.
55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "errno-list.h"
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static const struct errno_name* lookup_errno(register const char *str,
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register GPERF_LEN_TYPE len);
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#include "errno-from-name.inc"
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int errno_from_name(const char *name) {
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const struct errno_name *sc;
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assert(name);
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sc = lookup_errno(name, strlen(name));
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if (!sc)
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return -EINVAL;
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assert(sc->id > 0);
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return sc->id;
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}
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#ifdef __GLIBC__
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const char* errno_name_no_fallback(int id) {
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if (id == 0) /* To stay in line with our implementation below. */
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return NULL;
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return strerrorname_np(ABS(id));
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}
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#else
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# include "errno-to-name.inc"
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const char* errno_name_no_fallback(int id) {
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if (id < 0)
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id = -id;
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if ((size_t) id >= ELEMENTSOF(errno_names))
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return NULL;
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return errno_names[id];
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}
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#endif
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const char* errno_name(int id, char buf[static ERRNO_NAME_BUF_LEN]) {
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const char *a = errno_name_no_fallback(id);
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if (a)
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return a;
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snprintf(buf, ERRNO_NAME_BUF_LEN, "%d", abs(id));
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return buf;
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}
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