diff options
| author | Paul Jakma <paul@quagga.net> | 2011-04-08 13:44:43 +0200 |
|---|---|---|
| committer | Paul Jakma <paul@quagga.net> | 2012-01-06 17:18:18 +0100 |
| commit | f63f06da2e7be6b17c72dd6110aae179f42f3700 (patch) | |
| tree | a36b625a9ea06d0720a240276ed1b8af33193ed7 /lib/prefix.c | |
| parent | doc: update BGP RFC references (diff) | |
| download | frr-f63f06da2e7be6b17c72dd6110aae179f42f3700.tar.xz frr-f63f06da2e7be6b17c72dd6110aae179f42f3700.zip | |
general: remove inline qualifiers and move in-header functions to objects
* (general) Move functions in headers into files, to be compiled into
shared object files. Remove inline qualifier from functions. Let the
compiler do the work.
Diffstat (limited to 'lib/prefix.c')
| -rw-r--r-- | lib/prefix.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/prefix.c b/lib/prefix.c index 1b1c66267..3ab67f3d5 100644 --- a/lib/prefix.c +++ b/lib/prefix.c @@ -2317,6 +2317,21 @@ static const char map64kto17_nbo[0xffff + 1] = #define MASKBIT(offset) ((0xff << (PNBBY - (offset))) & 0xff) +unsigned int +prefix_bit (const u_char *prefix, const u_char prefixlen) +{ + unsigned int offset = prefixlen / 8; + unsigned int shift = 7 - (prefixlen % 8); + + return (prefix[offset] >> shift) & 1; +} + +unsigned int +prefix6_bit (const struct in6_addr *prefix, const u_char prefixlen) +{ + return prefix_bit((const u_char *) &prefix->s6_addr, prefixlen); +} + /* Address Famiy Identifier to Address Family converter. */ int afi2family (afi_t afi) |