diff options
Diffstat (limited to 'include/netdb.h')
| -rw-r--r-- | include/netdb.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/netdb.h b/include/netdb.h index 0a97c01a3e..1f2ab032e2 100644 --- a/include/netdb.h +++ b/include/netdb.h @@ -1,6 +1,26 @@ #ifndef _NETDB_H #include <resolv/netdb.h> +/* Macros for accessing h_errno from inside libc. */ +# ifdef _LIBC_REENTRANT +# include <tls.h> +# if USE_TLS && HAVE___THREAD +# undef h_errno +# define h_errno h_errno /* For #ifndef h_errno tests. */ +extern __thread int h_errno; +# define __set_h_errno(x) (h_errno = (x)) +# else +static inline int +__set_h_errno (int __err) +{ + return *__h_errno_location () = __err; +} +# endif +# else +# undef h_errno +# define __set_h_errno(x) (h_errno = (x)) +# endif /* _LIBC_REENTRANT */ + /* Document internal interfaces. */ extern int __gethostent_r (struct hostent *__restrict __result_buf, char *__restrict __buf, size_t __buflen, |