1 /* Copyright (C) 1993-2022 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, see 16 <https://www.gnu.org/licenses/>. */ 17 18 #include <stdint.h> 19 #include <netinet/in.h> 20 21 #undef htonl 22 #undef ntohl 23 24 uint32_t htonl(uint32_t x)25htonl (uint32_t x) 26 { 27 #if BYTE_ORDER == BIG_ENDIAN 28 return x; 29 #elif BYTE_ORDER == LITTLE_ENDIAN 30 return __bswap_32 (x); 31 #else 32 # error "What kind of system is this?" 33 #endif 34 } 35 weak_alias (htonl, ntohl) 36