/* Convert Inet number to ASCII representation. Copyright (C) 1997-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #include <stdio.h> #include <stdlib.h> #include <arpa/inet.h> /* The interface of this function is completely stupid, it requires a static buffer. We relax this a bit in that we allow one buffer for each thread. */ static __thread char buffer[18]; char * inet_ntoa (struct in_addr in) { unsigned char *bytes = (unsigned char *) ∈ __snprintf (buffer, sizeof (buffer), "%d.%d.%d.%d", bytes[0], bytes[1], bytes[2], bytes[3]); return buffer; }