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2005-01-30 Andrew J. Schorr <ajschorr@alumni.princeton.edu>

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* ripng_interface.c: (ripng_multicast_join) Save errno before calling
	  ripngd_privs.change.
This commit is contained in:
ajs 2005-01-30 18:08:12 +00:00
parent 798534576c
commit 656b4eeec1
2 changed files with 10 additions and 2 deletions
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5
ripngd/ChangeLog
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@ -1,3 +1,8 @@
2005-01-30 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* ripng_interface.c: (ripng_multicast_join) Save errno before calling
ripngd_privs.change.
2005-01-04 Andrew J. Schorr <ajschorr@alumni.princeton.edu> 2005-01-04 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* ripngd.c: (ripng_recv_packet) Use ZCMSG_FIRSTHDR instead of * ripngd.c: (ripng_recv_packet) Use ZCMSG_FIRSTHDR instead of

7
ripngd/ripng_interface.c
View File

@ -62,6 +62,7 @@ ripng_multicast_join (struct interface *ifp)
{ {
int ret; int ret;
struct ipv6_mreq mreq; struct ipv6_mreq mreq;
int save_errno;
if (if_is_up (ifp) && if_is_multicast (ifp)) { if (if_is_up (ifp) && if_is_multicast (ifp)) {
memset (&mreq, 0, sizeof (mreq)); memset (&mreq, 0, sizeof (mreq));
@ -78,11 +79,12 @@ ripng_multicast_join (struct interface *ifp)
ret = setsockopt (ripng->sock, IPPROTO_IPV6, IPV6_JOIN_GROUP, ret = setsockopt (ripng->sock, IPPROTO_IPV6, IPV6_JOIN_GROUP,
(char *) &mreq, sizeof (mreq)); (char *) &mreq, sizeof (mreq));
save_errno = errno;
if (ripngd_privs.change (ZPRIVS_LOWER)) if (ripngd_privs.change (ZPRIVS_LOWER))
zlog_err ("ripng_multicast_join: could not lower privs"); zlog_err ("ripng_multicast_join: could not lower privs");
if (ret < 0 && errno == EADDRINUSE) if (ret < 0 && save_errno == EADDRINUSE)
{ {
/* /*
* Group is already joined. This occurs due to sloppy group * Group is already joined. This occurs due to sloppy group
@ -94,7 +96,8 @@ ripng_multicast_join (struct interface *ifp)
} }
if (ret < 0) if (ret < 0)
zlog_warn ("can't setsockopt IPV6_JOIN_GROUP: %s", safe_strerror (errno)); zlog_warn ("can't setsockopt IPV6_JOIN_GROUP: %s",
safe_strerror (save_errno));
if (IS_RIPNG_DEBUG_EVENT) if (IS_RIPNG_DEBUG_EVENT)
zlog_debug ("RIPng %s join to all-rip-routers multicast group", ifp->name); zlog_debug ("RIPng %s join to all-rip-routers multicast group", ifp->name);