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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2010-07-13 03:43:06 +0000 |
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| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2010-07-13 03:43:06 +0000 |
| commit | 7569e53f92cc6c313c8642a8cc53dfacea63382b (patch) | |
| tree | 50917f724a6a70b33050502c1b4bc395528fd460 /nuttx/examples/igmp/igmp.c | |
| parent | 35a4b3030e7548e6aace209ef8e92a5e2b495d1e (diff) | |
| download | px4-nuttx-7569e53f92cc6c313c8642a8cc53dfacea63382b.tar.gz px4-nuttx-7569e53f92cc6c313c8642a8cc53dfacea63382b.tar.bz2 px4-nuttx-7569e53f92cc6c313c8642a8cc53dfacea63382b.zip | |
IGMP debug fixes
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2791 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/examples/igmp/igmp.c')
| -rwxr-xr-x | nuttx/examples/igmp/igmp.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/nuttx/examples/igmp/igmp.c b/nuttx/examples/igmp/igmp.c index c341e4c1d..8bca7fa4e 100755 --- a/nuttx/examples/igmp/igmp.c +++ b/nuttx/examples/igmp/igmp.c @@ -55,6 +55,20 @@ * Definitions ****************************************************************************/ +/* Check if the destination address is a multicast address + * + * - IPv4: multicast addresses lie in the class D group -- The address range + * 224.0.0.0 to 239.255.255.255 (224.0.0.0/4) + * + * - IPv6 multicast addresses are have the high-order octet of the + * addresses=0xff (ff00::/8.) + */ + +#if ((CONFIG_EXAMPLE_IGMP_GRPADDR & 0xffff0000) < 0xe0000000ul) || \ + ((CONFIG_EXAMPLE_IGMP_GRPADDR & 0xffff0000) > 0xeffffffful) +# error "Bad range for IGMP group address" +#endif + /**************************************************************************** * Private Data ****************************************************************************/ |