[NaCl SDK] nacl_io: seperate socket syscalls into thier own directory.

native_client_sdk/src/libraries/nacl_io/syscalls/inet_aton.c

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "nacl_io/ossocket.h"
-
-#if defined(PROVIDES_SOCKET_API) && !defined(__GLIBC__)
-
-#include <stdio.h>
-#include <string.h>
-#include <limits.h>
-
-int inet_aton(const char *cp, struct in_addr *inp) {
-  unsigned int p1 = 0, p2 = 0, p3 = 0, p4 = 0;
-  int consumed = 0;
-  int matched = sscanf(cp, "%u.%u.%u.%u%n", &p1, &p2, &p3, &p4,
-                       &consumed);
-
-  if (strlen(cp) == consumed && matched == 4) {
-    if ((p1 | p2 | p3 | p4) <= UCHAR_MAX) {
-      in_addr_t host_order_addr = (p1 << 24) | (p2 << 16) | (p3 << 8) | p4;
-      inp->s_addr = htonl(host_order_addr);
-      return 1;
-    }
-  }
-
-  matched = sscanf(cp, "%u.%u.%u%n", &p1, &p2, &p3, &consumed);
-  if (strlen(cp) == consumed && matched == 3) {
-    if ((p1 | p2) <= UCHAR_MAX && p3 <= USHRT_MAX) {
-      in_addr_t host_order_addr = (p1 << 24) | (p2 << 16) | p3;
-      inp->s_addr = htonl(host_order_addr);
-      return 1;
-    }
-  }
-
-  matched = sscanf(cp, "%u.%u%n", &p1, &p2, &consumed);
-  if (strlen(cp) == consumed && matched == 2) {
-    if (p1 <= UCHAR_MAX && p1 <= 1 << 24) {
-      in_addr_t host_order_addr = (p1 << 24) | p2;
-      inp->s_addr = htonl(host_order_addr);
-      return 1;
-    }
-  }
-
-  matched = sscanf(cp, "%u%n", &p1, &consumed);
-  if (strlen(cp) == consumed && matched == 1) {
-    inp->s_addr = htonl(p1);
-    return 1;
-  }
-
-  // Failure
-  return 0;
-}
-
-#endif  // defined(PROVIDES_SOCKET_API) && !defined(__GLIBC__)