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[glibc/history.git] / inet / inet_ntoa.c
blob38794957c230c59409807917c8dca096db44074b
1 /* Convert Inet number to ASCII representation.
2 Copyright (C) 1997, 1998, 2000, 2001 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 02111-1307 USA. */
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <arpa/inet.h>
25 /* The interface of this function is completely stupid, it requires a
26 static buffer. We relax this a bit in that we allow one buffer for
27 each thread. */
28 static __thread char buffer[18];
31 char *
32 inet_ntoa (struct in_addr in)
34 unsigned char *bytes = (unsigned char *) &in;
35 __snprintf (buffer, sizeof (buffer), "%d.%d.%d.%d",
36 bytes[0], bytes[1], bytes[2], bytes[3]);
38 return buffer;