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/* Test hton/ntoh functions.
Copyright (C) 1997-2025 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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
<https://www.gnu.org/licenses/>. */
#include <endian.h>
#include <stdio.h>
#include <sys/types.h>
#include <netinet/in.h>
#if BYTE_ORDER == BIG_ENDIAN
# define TEST(orig, swapped, fct) \
if ((fct (orig)) != (orig)) { \
printf ("Failed for %s -> %#x\n", #fct "(" #orig ")", fct (orig)); \
result = 1; \
}
#elif BYTE_ORDER == LITTLE_ENDIAN
# define TEST(orig, swapped, fct) \
if ((fct (orig)) != (swapped)) { \
printf ("Failed for %s -> %#x\n", #fct "(" #orig ")", fct (orig)); \
result = 1; \
}
#else
# error "Bah, what kind of system do you use?"
#endif
uint32_t lo = 0x67452301;
uint16_t foo = 0x1234;
int
main (void)
{
int result = 0;
TEST (0x67452301, 0x01234567, htonl);
TEST (0x67452301, 0x01234567, (htonl));
TEST (0x67452301, 0x01234567, ntohl);
TEST (0x67452301, 0x01234567, (ntohl));
TEST (lo, 0x01234567, htonl);
TEST (lo, 0x01234567, (htonl));
TEST (lo, 0x01234567, ntohl);
TEST (lo, 0x01234567, (ntohl));
TEST (0x1234, 0x3412, htons);
TEST (0x1234, 0x3412, (htons));
TEST (0x1234, 0x3412, ntohs);
TEST (0x1234, 0x3412, (ntohs));
TEST (foo, 0x3412, htons);
TEST (foo, 0x3412, (htons));
TEST (foo, 0x3412, ntohs);
TEST (foo, 0x3412, (ntohs));
return result;
}
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