y2038: inet: Convert inet deadline to support 64 bit time

This change brings 64 bit time support to inet deadline related code for
architectures with __WORDSIZE == 32 && __TIMESIZE != 64.

It is also safe to replace struct timespec with struct __timespec64 in
deadline related structures as:

- The __deadline_to_ms () returns the number of miliseconds to deadline to
  be used with __poll (and hence it is a relative value).
- To calculate the deadline from timeval (which will be converted latter)
  the uintmax_t type is used (unsinged long long int).

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>

inet/deadline.c

@@ -28,8 +28,8 @@ struct deadline_current_time
 __deadline_current_time (void)
 {
   struct deadline_current_time result;
-  if (__clock_gettime (CLOCK_MONOTONIC, &result.current) != 0)
-    __clock_gettime (CLOCK_REALTIME, &result.current);
+  if (__clock_gettime64 (CLOCK_MONOTONIC, &result.current) != 0)
+    __clock_gettime64 (CLOCK_REALTIME, &result.current);
   assert (result.current.tv_sec >= 0);
   return result;
 }

inet/net-internal.h

@@ -24,6 +24,7 @@
 #include <stdint.h>
 #include <sys/time.h>
 #include <libc-diag.h>
+#include <struct___timespec64.h>
 
 int __inet6_scopeid_pton (const struct in6_addr *address,
                           const char *scope, uint32_t *result);
@@ -76,7 +77,7 @@ enum idna_name_classification __idna_name_classify (const char *name)
    timeouts and vice versa.  */
 struct deadline_current_time
 {
-  struct timespec current;
+  struct __timespec64 current;
 };
 
 /* Return the current time.  Terminates the process if the current
@@ -86,7 +87,7 @@ struct deadline_current_time __deadline_current_time (void) attribute_hidden;
 /* Computed absolute deadline.  */
 struct deadline
 {
-  struct timespec absolute;
+  struct __timespec64 absolute;
 };