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Bug 192589: keep querying the presence of IPv4 and IPv6 interfaces until at

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least one is up. This allows us to detect the local machine going from
offline to online.


git-svn-id: svn://10.0.0.236/trunk@138230 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
wtc%netscape.com
2003-02-22 20:27:25 +00:00
parent 7b8472e0bb
commit 1a833f934a
1 changed files with 27 additions and 7 deletions
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34
mozilla/nsprpub/pr/src/misc/prnetdb.c
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@@ -177,6 +177,7 @@ const PRIPv6Addr _pr_in6addr_loopback = {{{ 0, 0, 0, 0,
* W. Richard Stevens' Unix Network Programming, Vol. 1, 2nd. Ed.)
*/
static PRLock *_pr_query_ifs_lock = NULL;
static PRBool _pr_have_inet_if = PR_FALSE;
static PRBool _pr_have_inet6_if = PR_FALSE;
@@ -423,13 +424,7 @@ void _PR_InitNet(void)
_getproto_lock = PR_NewLock();
#endif
#if defined(_PR_INET6) && defined(_PR_HAVE_GETHOSTBYNAME2)
_pr_QueryNetIfs();
#ifdef DEBUG_QUERY_IFS
if (_pr_have_inet_if)
printf("Have IPv4 source address\n");
if (_pr_have_inet6_if)
printf("Have IPv6 source address\n");
#endif
_pr_query_ifs_lock = PR_NewLock();
#endif
}
@@ -447,6 +442,12 @@ void _PR_CleanupNet(void)
_getproto_lock = NULL;
}
#endif
#if defined(_PR_INET6) && defined(_PR_HAVE_GETHOSTBYNAME2)
if (_pr_query_ifs_lock) {
PR_DestroyLock(_pr_query_ifs_lock);
_pr_query_ifs_lock = NULL;
}
#endif
}
/*
@@ -792,6 +793,25 @@ PR_IMPLEMENT(PRStatus) PR_GetIPNodeByName(
return PR_FAILURE;
}
#if defined(_PR_INET6) && defined(_PR_HAVE_GETHOSTBYNAME2)
PR_Lock(_pr_query_ifs_lock);
/*
* Keep querying the presence of IPv4 and IPv6 interfaces until
* at least one is up. This allows us to detect the local
* machine going from offline to online.
*/
if (!_pr_have_inet_if && !_pr_have_inet6_if) {
_pr_QueryNetIfs();
#ifdef DEBUG_QUERY_IFS
if (_pr_have_inet_if)
printf("Have IPv4 source address\n");
if (_pr_have_inet6_if)
printf("Have IPv6 source address\n");
#endif
}
PR_Unlock(_pr_query_ifs_lock);
#endif
#if defined(_PR_HAVE_GETIPNODEBYNAME)
if (flags & PR_AI_V4MAPPED)
tmp_flags |= AI_V4MAPPED;