105 lines
3.0 KiB
C
105 lines
3.0 KiB
C
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// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
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#undef _GNU_SOURCE
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#include <string.h>
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#include <stdio.h>
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#include <errno.h>
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#include "str_error.h"
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#ifndef ENOTSUPP
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#define ENOTSUPP 524
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#endif
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/* make sure libbpf doesn't use kernel-only integer typedefs */
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#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
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/*
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* Wrapper to allow for building in non-GNU systems such as Alpine Linux's musl
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* libc, while checking strerror_r() return to avoid having to check this in
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* all places calling it.
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*/
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char *libbpf_strerror_r(int err, char *dst, int len)
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{
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int ret = strerror_r(err < 0 ? -err : err, dst, len);
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/* on glibc <2.13, ret == -1 and errno is set, if strerror_r() can't
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* handle the error, on glibc >=2.13 *positive* (errno-like) error
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* code is returned directly
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*/
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if (ret == -1)
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ret = errno;
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if (ret) {
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if (ret == EINVAL)
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/* strerror_r() doesn't recognize this specific error */
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snprintf(dst, len, "unknown error (%d)", err < 0 ? err : -err);
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else
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snprintf(dst, len, "ERROR: strerror_r(%d)=%d", err, ret);
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}
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return dst;
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}
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const char *errstr(int err)
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{
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static __thread char buf[12];
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if (err > 0)
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err = -err;
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switch (err) {
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case -E2BIG: return "-E2BIG";
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case -EACCES: return "-EACCES";
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case -EADDRINUSE: return "-EADDRINUSE";
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case -EADDRNOTAVAIL: return "-EADDRNOTAVAIL";
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case -EAGAIN: return "-EAGAIN";
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case -EALREADY: return "-EALREADY";
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case -EBADF: return "-EBADF";
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case -EBADFD: return "-EBADFD";
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case -EBUSY: return "-EBUSY";
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case -ECANCELED: return "-ECANCELED";
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case -ECHILD: return "-ECHILD";
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case -EDEADLK: return "-EDEADLK";
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case -EDOM: return "-EDOM";
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case -EEXIST: return "-EEXIST";
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case -EFAULT: return "-EFAULT";
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case -EFBIG: return "-EFBIG";
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case -EILSEQ: return "-EILSEQ";
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case -EINPROGRESS: return "-EINPROGRESS";
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case -EINTR: return "-EINTR";
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case -EINVAL: return "-EINVAL";
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case -EIO: return "-EIO";
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case -EISDIR: return "-EISDIR";
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case -ELOOP: return "-ELOOP";
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case -EMFILE: return "-EMFILE";
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case -EMLINK: return "-EMLINK";
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case -EMSGSIZE: return "-EMSGSIZE";
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case -ENAMETOOLONG: return "-ENAMETOOLONG";
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case -ENFILE: return "-ENFILE";
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case -ENODATA: return "-ENODATA";
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case -ENODEV: return "-ENODEV";
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case -ENOENT: return "-ENOENT";
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case -ENOEXEC: return "-ENOEXEC";
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case -ENOLINK: return "-ENOLINK";
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case -ENOMEM: return "-ENOMEM";
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case -ENOSPC: return "-ENOSPC";
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case -ENOTBLK: return "-ENOTBLK";
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case -ENOTDIR: return "-ENOTDIR";
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case -ENOTSUPP: return "-ENOTSUPP";
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case -ENOTTY: return "-ENOTTY";
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case -ENXIO: return "-ENXIO";
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case -EOPNOTSUPP: return "-EOPNOTSUPP";
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case -EOVERFLOW: return "-EOVERFLOW";
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case -EPERM: return "-EPERM";
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case -EPIPE: return "-EPIPE";
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case -EPROTO: return "-EPROTO";
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case -EPROTONOSUPPORT: return "-EPROTONOSUPPORT";
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case -ERANGE: return "-ERANGE";
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case -EROFS: return "-EROFS";
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case -ESPIPE: return "-ESPIPE";
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case -ESRCH: return "-ESRCH";
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case -ETXTBSY: return "-ETXTBSY";
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case -EUCLEAN: return "-EUCLEAN";
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case -EXDEV: return "-EXDEV";
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default:
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snprintf(buf, sizeof(buf), "%d", err);
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return buf;
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}
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}
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