1 // SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
2 #undef _GNU_SOURCE
3 #include <string.h>
4 #include <stdio.h>
5 #include "str_error.h"
6
7 /* make sure libbpf doesn't use kernel-only integer typedefs */
8 #pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
9
10 /*
11 * Wrapper to allow for building in non-GNU systems such as Alpine Linux's musl
12 * libc, while checking strerror_r() return to avoid having to check this in
13 * all places calling it.
14 */
libbpf_strerror_r(int err,char * dst,int len)15 char *libbpf_strerror_r(int err, char *dst, int len)
16 {
17 int ret = strerror_r(err < 0 ? -err : err, dst, len);
18 if (ret)
19 snprintf(dst, len, "ERROR: strerror_r(%d)=%d", err, ret);
20 return dst;
21 }
22