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libsxmp/sxt/misc.c

50 lines
1.6 KiB
C

/*
* Secure eXtended Message Passing framework
* Secure eXtended Transport layer implementation: (libsxt)
* - very similar to SSH2/TLS
* - using already proven and tested crypto algos
* - better than TLS for message passing
*
* (c) Alexander Vdolainen 2016 <avdolainen@zoho.com>
*
* libsxmp 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 3 of the License, or
* (at your option) any later version.
*
* libsxmp 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 this program. If not, see <http://www.gnu.org/licenses/>.";
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <errno.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/types.h>
uint64_t ntohll(uint64_t n)
{
#ifdef WORDS_BIGENDIAN
return n;
#else /* WORDS_BIGENDIAN */
return (((uint64_t)(n) << 56) | \
(((uint64_t)(n) << 40) & 0xff000000000000ULL) | \
(((uint64_t)(n) << 24) & 0xff0000000000ULL) | \
(((uint64_t)(n) << 8) & 0xff00000000ULL) | \
(((uint64_t)(n) >> 8) & 0xff000000ULL) | \
(((uint64_t)(n) >> 24) & 0xff0000ULL) | \
(((uint64_t)(n) >> 40) & 0xff00ULL) | \
((uint64_t)(n) >> 56));
#endif /* WORDS_BIGENDIAN */
}