diff options
Diffstat (limited to 'contrib/tcpdump/util.c')
-rw-r--r-- | contrib/tcpdump/util.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/contrib/tcpdump/util.c b/contrib/tcpdump/util.c index 6b723e543c60..a2ef36d70b78 100644 --- a/contrib/tcpdump/util.c +++ b/contrib/tcpdump/util.c @@ -328,7 +328,7 @@ bittok2str_internal(register const struct tok *lp, register const char *fmt, register int rotbit; /* this is the bit we rotate through all bitpositions */ register int tokval; - while (lp->s != NULL && lp != NULL) { + while (lp != NULL && lp->s != NULL) { tokval=lp->v; /* load our first value */ rotbit=1; while (rotbit != 0) { @@ -415,7 +415,7 @@ tok2strary_internal(register const char **lp, int n, register const char *fmt, */ int -mask2plen (u_int32_t mask) +mask2plen(u_int32_t mask) { u_int32_t bitmasks[33] = { 0x00000000, @@ -439,6 +439,35 @@ mask2plen (u_int32_t mask) return (prefix_len); } +#ifdef INET6 +int +mask62plen(const u_char *mask) +{ + u_char bitmasks[9] = { + 0x00, + 0x80, 0xc0, 0xe0, 0xf0, + 0xf8, 0xfc, 0xfe, 0xff + }; + int byte; + int cidr_len = 0; + + for (byte = 0; byte < 16; byte++) { + u_int bits; + + for (bits = 0; bits < (sizeof (bitmasks) / sizeof (bitmasks[0])); bits++) { + if (mask[byte] == bitmasks[bits]) { + cidr_len += bits; + break; + } + } + + if (mask[byte] != 0xff) + break; + } + return (cidr_len); +} +#endif /* INET6 */ + /* VARARGS */ void error(const char *fmt, ...) |