diff options
| author | Andrew J. Schorr <ajschorr@alumni.princeton.edu> | 2007-07-06 17:00:24 +0000 |
|---|---|---|
| committer | Andrew J. Schorr <ajschorr@alumni.princeton.edu> | 2007-07-06 17:00:24 +0000 |
| commit | 97cabcf760b8343512b5646e60cc228b8dc1350a (patch) | |
| tree | 4aab9c935540e5eafb6f8fba8c4163e305cb809c /lib/sockopt.c | |
| parent | 0b8c4f1d811170224e467b305137ac94861daee6 (diff) | |
[lib] Add comments regarding setsockopt_multicast_ipv4 arguments.
2007-07-06 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* sockopt.{c,h}: (setsockopt_multicast_ipv4) Add some comments about
the arguments.
Diffstat (limited to 'lib/sockopt.c')
| -rw-r--r-- | lib/sockopt.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/sockopt.c b/lib/sockopt.c index 6ddbded1..f5f1a7ed 100644 --- a/lib/sockopt.c +++ b/lib/sockopt.c @@ -176,9 +176,10 @@ getsockopt_ipv6_ifindex (struct msghdr *msgh) int setsockopt_multicast_ipv4(int sock, int optname, - struct in_addr if_addr, + struct in_addr if_addr /* required */, unsigned int mcast_addr, - unsigned int ifindex) + unsigned int ifindex /* optional: if non-zero, may be + used instead of if_addr */) { #ifdef HAVE_STRUCT_IP_MREQN_IMR_IFINDEX |