Mirror/zeek
1
0
Fork 0
mirror of https://github.com/zeek/zeek.git synced 2025-10-10 10:38:20 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

Reclassifying more DNS manager errors.

Browse source 
Closes #461.
This commit is contained in:
Robin Sommer 2011-08-15 21:10:30 -07:00
parent f9cd97d78d
commit 63eac6c174
2 changed files with 23 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

33
src/DNS_Mgr.cc
View file

@ -360,7 +360,7 @@ DNS_Mgr::DNS_Mgr(DNS_MgrMode arg_mode)
nb_dns = nb_dns_init(err);
if ( ! nb_dns )
reporter->Warning(fmt("problem initializing NB-DNS: %s", err));
reporter->Warning("problem initializing NB-DNS: %s", err);
dns_mapping_valid = dns_mapping_unverified = dns_mapping_new_name =
dns_mapping_lost_name = dns_mapping_name_changed =
@ -447,7 +447,7 @@ TableVal* DNS_Mgr::LookupHost(const char* name)
return d->Addrs()->ConvertToSet();
else
{
reporter->Warning("no such host:", name);
reporter->Warning("no such host: %s", name);
return empty_addr_set();
}
}
@ -460,7 +460,7 @@ TableVal* DNS_Mgr::LookupHost(const char* name)
return empty_addr_set();
case DNS_FORCE:
reporter->InternalError("can't find DNS entry for %s in cache", name);
reporter->FatalError("can't find DNS entry for %s in cache", name);
return 0;
case DNS_DEFAULT:
@ -490,7 +490,7 @@ Val* DNS_Mgr::LookupAddr(uint32 addr)
return d->Host();
else
{
reporter->Warning("can't resolve IP address:", dotted_addr(addr));
reporter->Warning("can't resolve IP address: %s", dotted_addr(addr));
return new StringVal(dotted_addr(addr));
}
}
@ -503,7 +503,7 @@ Val* DNS_Mgr::LookupAddr(uint32 addr)
return new StringVal("<none>");
case DNS_FORCE:
reporter->InternalError("can't find DNS entry for %s in cache",
reporter->FatalError("can't find DNS entry for %s in cache",
dotted_addr(addr));
return 0;
@ -574,7 +574,7 @@ void DNS_Mgr::Resolve()
struct nb_dns_result r;
status = nb_dns_activity(nb_dns, &r, err);
if ( status < 0 )
reporter->InternalError(
reporter->Warning(
"NB-DNS error in DNS_Mgr::WaitForReplies (%s)",
err);
else if ( status > 0 )
@ -823,7 +823,7 @@ void DNS_Mgr::LoadCache(FILE* f)
}
if ( ! m->NoMapping() )
reporter->InternalError("DNS cache corrupted");
reporter->FatalError("DNS cache corrupted");
delete m;
fclose(f);
@ -958,7 +958,7 @@ void DNS_Mgr::IssueAsyncRequests()
if ( ! dr->MakeRequest(nb_dns) )
{
reporter->Error("can't issue DNS request");
reporter->Warning("can't issue DNS request");
req->Timeout();
continue;
}
@ -1095,7 +1095,10 @@ int DNS_Mgr::AnswerAvailable(int timeout)
{
int fd = nb_dns_fd(nb_dns);
if ( fd < 0 )
reporter->InternalError("nb_dns_fd() failed in DNS_Mgr::WaitForReplies");
{
reporter->Warning("nb_dns_fd() failed in DNS_Mgr::WaitForReplies");
return -1;
}
fd_set read_fds;
@ -1110,13 +1113,17 @@ int DNS_Mgr::AnswerAvailable(int timeout)
if ( status < 0 )
{
if ( errno == EINTR )
return -1;
reporter->InternalError("problem with DNS select");
if ( errno != EINTR )
reporter->Warning("problem with DNS select");
return -1;
}
if ( status > 1 )
reporter->InternalError("strange return from DNS select");
{
reporter->Warning("strange return from DNS select");
return -1;
}
return status;
}

5
src/DNS_Mgr.h
View file

@ -100,8 +100,9 @@ protected:
void LoadCache(FILE* f);
void Save(FILE* f, PDict(DNS_Mapping)& m);
// Selects on the fd to see if there is an answer available (timeout is
// secs). Returns 0 on timeout, -1 on EINTR, and 1 if answer is ready.
// Selects on the fd to see if there is an answer available (timeout
// is secs). Returns 0 on timeout, -1 on EINTR or other error, and 1
// if answer is ready.
int AnswerAvailable(int timeout);
// Issue as many queued async requests as slots are available.