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authorOndrej Zajicek <santiago@crfreenet.org>2014-10-24 11:11:43 +0200
committerOndrej Zajicek <santiago@crfreenet.org>2014-10-24 11:11:43 +0200
commit88a183c6c9a2b86b52f67e87bbc8b7edd32670c6 (patch)
treeb1348b71e69f9ed0d919a4792549026c9e31b092 /lib/ipv4.c
parentf8fefde318c6248ad94e7b6d60155deed9ab8eed (diff)
Integrated IP functions.
Diffstat (limited to 'lib/ipv4.c')
-rw-r--r--lib/ipv4.c110
1 files changed, 0 insertions, 110 deletions
diff --git a/lib/ipv4.c b/lib/ipv4.c
deleted file mode 100644
index 751351ca..00000000
--- a/lib/ipv4.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * BIRD Library -- IPv4 Address Manipulation Functions
- *
- * (c) 1998 Martin Mares <mj@ucw.cz>
- *
- * Can be freely distributed and used under the terms of the GNU GPL.
- */
-
-#include <stdlib.h>
-
-#include "nest/bird.h"
-#include "lib/ip.h"
-#include "lib/string.h"
-
-int
-ipv4_classify(u32 a)
-{
- u32 b = a >> 24U;
-
- if (b && b <= 0xdf)
- {
- if (b == 0x7f)
- return IADDR_HOST | SCOPE_HOST;
- else if (b == 0x0a ||
- (a & 0xffff0000) == 0xc0a80000 ||
- (a & 0xfff00000) == 0xac100000)
- return IADDR_HOST | SCOPE_SITE;
- else
- return IADDR_HOST | SCOPE_UNIVERSE;
- }
- if (b >= 0xe0 && b <= 0xef)
- return IADDR_MULTICAST | SCOPE_UNIVERSE;
- if (a == 0xffffffff)
- return IADDR_BROADCAST | SCOPE_LINK;
- return IADDR_INVALID;
-}
-
-char *
-ip_ntop(ip_addr a, char *b)
-{
- u32 x = _I(a);
-
- return b + bsprintf(b, "%d.%d.%d.%d",
- ((x >> 24) & 0xff),
- ((x >> 16) & 0xff),
- ((x >> 8) & 0xff),
- (x & 0xff));
-}
-
-char *
-ip_ntox(ip_addr a, char *b)
-{
- return b + bsprintf(b, "%08x", _I(a));
-}
-
-u32
-ipv4_class_mask(u32 a)
-{
- u32 m;
-
- if (a < 0x80000000)
- m = 0xff000000;
- else if (a < 0xc0000000)
- m = 0xffff0000;
- else
- m = 0xffffff00;
- while (a & ~m)
- m |= m >> 1;
- return m;
-}
-
-int
-ip_pton(char *a, ip_addr *o)
-{
- int i;
- unsigned long int l;
- u32 ia = 0;
-
- i=4;
- while (i--)
- {
- char *d, *c = strchr(a, '.');
- if (!c != !i)
- return 0;
- l = strtoul(a, &d, 10);
- if (d != c && *d || l > 255)
- return 0;
- ia = (ia << 8) | l;
- if (c)
- c++;
- a = c;
- }
- *o = ipa_from_u32(ia);
- return 1;
-}
-
-byte *
-ipv4_skip_header(byte *pkt, int *len)
-{
- int l = *len;
- int q;
-
- if (l < 20 || (*pkt & 0xf0) != 0x40)
- return NULL;
- q = (*pkt & 0x0f) * 4;
- if (q > l)
- return NULL;
- *len -= q;
- return pkt + q;
-}