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-rw-r--r--tools/lib/bpf/str_error.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/lib/bpf/str_error.h b/tools/lib/bpf/str_error.h
index 626d7ffb03d6..66ffebde0684 100644
--- a/tools/lib/bpf/str_error.h
+++ b/tools/lib/bpf/str_error.h
@@ -6,4 +6,11 @@
char *libbpf_strerror_r(int err, char *dst, int len);
+/**
+ * @brief **errstr()** returns string corresponding to numeric errno
+ * @param err negative numeric errno
+ * @return pointer to string representation of the errno, that is invalidated
+ * upon the next call.
+ */
+const char *errstr(int err);
#endif /* __LIBBPF_STR_ERROR_H */