From 96cf8dffe4f7b0b910f790066ae622dc429eb522 Mon Sep 17 00:00:00 2001 From: Jannis Hoffmann Date: Tue, 9 Jul 2024 13:02:45 +0200 Subject: initial commit of version 23 --- uint16p.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 uint16p.c (limited to 'uint16p.c') diff --git a/uint16p.c b/uint16p.c new file mode 100644 index 0000000..5dddf21 --- /dev/null +++ b/uint16p.c @@ -0,0 +1,40 @@ +#include "uint_t.h" + +/** + @file uint16p.c + @author djb + @source qmail + @brief packing/unpacking 16 bit integer to/from char string +*/ + +void uint16_pack(char s[2],uint16 u) +{ + s[0] = u & 255; + s[1] = u >> 8; +} + +void uint16_pack_big(char s[2],uint16 u) +{ + s[1] = u & 255; + s[0] = u >> 8; +} + +void uint16_unpack(char s[2],uint16 *u) +{ + uint16 result; + + result = (unsigned char) s[1]; result <<= 8; + result += (unsigned char) s[0]; + + *u = result; +} + +void uint16_unpack_big(char s[2],uint16 *u) +{ + uint16 result; + + result = (unsigned char) s[0]; result <<= 8; + result += (unsigned char) s[1]; + + *u = result; +} -- cgit v1.2.3