From 249866e3d1e11dc72eaa1305f4bb479ded92ef38 Mon Sep 17 00:00:00 2001 From: Jannis Hoffmann Date: Tue, 9 Jul 2024 13:58:20 +0200 Subject: reorganized file structure Moved c files into src/. Corrected VERSION file. Removed BUILD and FILES. --- src/uint32p.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 src/uint32p.c (limited to 'src/uint32p.c') diff --git a/src/uint32p.c b/src/uint32p.c new file mode 100644 index 0000000..f3f04ea --- /dev/null +++ b/src/uint32p.c @@ -0,0 +1,47 @@ +#include "uint_t.h" + +/** + @file uint32p.c + @author djb + @source qmail + @brief packing/unpacking 32 bit integer to/from char string +*/ + +void uint32_pack(char s[4],uint32 u) +{ + s[0] = u & 255; u >>= 8; + s[1] = u & 255; u >>= 8; + s[2] = u & 255; + s[3] = u >> 8; +} +void uint32_pack_big(char s[4],uint32 u) +{ + s[3] = u & 255; u >>= 8; + s[2] = u & 255; u >>= 8; + s[1] = u & 255; + s[0] = u >> 8; +} + +void uint32_unpack(char s[4],uint32 *u) +{ + uint32 result; + + result = (unsigned char) s[3]; result <<= 8; + result += (unsigned char) s[2]; result <<= 8; + result += (unsigned char) s[1]; result <<= 8; + result += (unsigned char) s[0]; + + *u = result; +} + +void uint32_unpack_big(char s[4],uint32 *u) +{ + uint32 result; + + result = (unsigned char) s[0]; result <<= 8; + result += (unsigned char) s[1]; result <<= 8; + result += (unsigned char) s[2]; result <<= 8; + result += (unsigned char) s[3]; + + *u = result; +} -- cgit v1.2.3