bson_strerror_r()
Synopsis
char *
bson_strerror_r (int    err_code,
                 char  *buf,
                 size_t buflen);Parameters
err_code  | 
An errno.  | 
buf  | 
A location to store the string.  | 
buflen  | 
The size of buf.  | 
Description
This is a portability wrapper around strerror().
Returns
The passed in buf parameter or an internal string.