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Diffstat (limited to 'src/uint16p.c')
-rw-r--r-- | src/uint16p.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/uint16p.c b/src/uint16p.c new file mode 100644 index 0000000..5dddf21 --- /dev/null +++ b/src/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; +} |