diff options
Diffstat (limited to 'buffer.c')
| -rw-r--r-- | buffer.c | 43 |
1 files changed, 42 insertions, 1 deletions
@@ -1,4 +1,4 @@ -/* $Id: buffer.c,v 1.2 2007-07-25 23:13:18 nicm Exp $ */ +/* $Id: buffer.c,v 1.3 2007-11-27 19:23:33 nicm Exp $ */ /* * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net> @@ -179,3 +179,44 @@ buffer_read(struct buffer *b, void *data, size_t size) memcpy(data, BUFFER_OUT(b), size); buffer_remove(b, size); } + +/* Store an 8-bit value. */ +void +buffer_write8(struct buffer *b, uint8_t n) +{ + buffer_ensure(b, 1); + BUFFER_IN(b)[0] = n; + buffer_add(b, 1); +} + +/* Store a 16-bit value. */ +void +buffer_write16(struct buffer *b, uint16_t n) +{ + buffer_ensure(b, 2); + BUFFER_IN(b)[0] = n & 0xff; + BUFFER_IN(b)[1] = n >> 8; + buffer_add(b, 2); +} + +/* Extract an 8-bit value. */ +uint8_t +buffer_read8(struct buffer *b) +{ + uint8_t n; + + n = BUFFER_OUT(b)[0]; + buffer_remove(b, 1); + return (n); +} + +/* Extract a 16-bit value. */ +uint16_t +buffer_read16(struct buffer *b) +{ + uint16_t n; + + n = BUFFER_OUT(b)[0] | (BUFFER_OUT(b)[1] << 8); + buffer_remove(b, 2); + return (n); +} |