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author | Mattias Andrée <maandree@member.fsf.org> | 2015-12-16 09:56:52 +0100 |
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committer | Mattias Andrée <maandree@member.fsf.org> | 2015-12-16 09:56:52 +0100 |
commit | 481280e346c01408272f9b8cc9f941df75e0c99c (patch) | |
tree | 4b9b6155c12088899439a90a5c477dbe116949ef /src/arpa/inet/htonl.c | |
parent | fix issue #5 on github (diff) | |
download | slibc-481280e346c01408272f9b8cc9f941df75e0c99c.tar.gz slibc-481280e346c01408272f9b8cc9f941df75e0c99c.tar.bz2 slibc-481280e346c01408272f9b8cc9f941df75e0c99c.tar.xz |
add ntohs, ntohl, ntohll, htons, htonl, and htonll
Signed-off-by: Mattias Andrée <maandree@member.fsf.org>
Diffstat (limited to 'src/arpa/inet/htonl.c')
-rw-r--r-- | src/arpa/inet/htonl.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/arpa/inet/htonl.c b/src/arpa/inet/htonl.c new file mode 100644 index 0000000..4a410b3 --- /dev/null +++ b/src/arpa/inet/htonl.c @@ -0,0 +1,41 @@ +/** + * slibc — Yet another C library + * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <arpa/inet.h> + + +/** + * Convert a 32-bit quantity from host byte order + * (little endian) to network byte order. + * + * @etymology (H)ost byte order (to) (n)etwork byte order, (l)ong. + * + * @param value A 32-bit quantity to convert. + * @return The value in network byte order. + * + * @since Always. + */ +uint32_t _htonl(uint32_t value) +{ + char rc[4]; + rc[0] = (value >> 24) & 255; + rc[1] = (value >> 16) & 255; + rc[2] = (value >> 8) & 255; + rc[3] = (value >> 0) & 255; + return *(uint16_t*)rc; +} + |