diff options
| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-30 08:11:09 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-30 08:11:09 -0700 |
| commit | 669c5d8d5f2be781d411ad8d52274038c795f257 (patch) | |
| tree | 86cc56ec1cb077b49e58f88c1427991e2b8fbcbc /tools/lib/bpf/str_error.c | |
| parent | serial: docs: Fix filename for serial reference implementation (diff) | |
| parent | Linux 4.19-rc6 (diff) | |
| download | linux-dev-669c5d8d5f2be781d411ad8d52274038c795f257.tar.xz linux-dev-669c5d8d5f2be781d411ad8d52274038c795f257.zip | |
Merge 4.19-rc6 into tty-next
We want the tty/serial fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/lib/bpf/str_error.c')
| -rw-r--r-- | tools/lib/bpf/str_error.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tools/lib/bpf/str_error.c b/tools/lib/bpf/str_error.c new file mode 100644 index 000000000000..b8798114a357 --- /dev/null +++ b/tools/lib/bpf/str_error.c @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: LGPL-2.1 +#undef _GNU_SOURCE +#include <string.h> +#include <stdio.h> +#include "str_error.h" + +/* + * Wrapper to allow for building in non-GNU systems such as Alpine Linux's musl + * libc, while checking strerror_r() return to avoid having to check this in + * all places calling it. + */ +char *str_error(int err, char *dst, int len) +{ + int ret = strerror_r(err, dst, len); + if (ret) + snprintf(dst, len, "ERROR: strerror_r(%d)=%d", err, ret); + return dst; +} |