xref: /linux-6.15/tools/lib/bpf/str_error.c (revision 6d41907c)
1*6d41907cSArnaldo Carvalho de Melo // SPDX-License-Identifier: LGPL-2.1
2*6d41907cSArnaldo Carvalho de Melo #undef _GNU_SOURCE
3*6d41907cSArnaldo Carvalho de Melo #include <string.h>
4*6d41907cSArnaldo Carvalho de Melo #include <stdio.h>
5*6d41907cSArnaldo Carvalho de Melo #include "str_error.h"
6*6d41907cSArnaldo Carvalho de Melo 
7*6d41907cSArnaldo Carvalho de Melo /*
8*6d41907cSArnaldo Carvalho de Melo  * Wrapper to allow for building in non-GNU systems such as Alpine Linux's musl
9*6d41907cSArnaldo Carvalho de Melo  * libc, while checking strerror_r() return to avoid having to check this in
10*6d41907cSArnaldo Carvalho de Melo  * all places calling it.
11*6d41907cSArnaldo Carvalho de Melo  */
12*6d41907cSArnaldo Carvalho de Melo char *str_error(int err, char *dst, int len)
13*6d41907cSArnaldo Carvalho de Melo {
14*6d41907cSArnaldo Carvalho de Melo 	int ret = strerror_r(err, dst, len);
15*6d41907cSArnaldo Carvalho de Melo 	if (ret)
16*6d41907cSArnaldo Carvalho de Melo 		snprintf(dst, len, "ERROR: strerror_r(%d)=%d", err, ret);
17*6d41907cSArnaldo Carvalho de Melo 	return dst;
18*6d41907cSArnaldo Carvalho de Melo }
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