root/tools/lib/bpf/str_error.c

DEFINITIONS

1. libbpf_strerror_r

   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 /*
   8  * Wrapper to allow for building in non-GNU systems such as Alpine Linux's musl
   9  * libc, while checking strerror_r() return to avoid having to check this in
  10  * all places calling it.
  11  */
  12 char *libbpf_strerror_r(int err, char *dst, int len)
  13 {
  14         int ret = strerror_r(err < 0 ? -err : err, dst, len);
  15         if (ret)
  16                 snprintf(dst, len, "ERROR: strerror_r(%d)=%d", err, ret);
  17         return dst;
  18 }