Not ideal; but I guess it'll have to do for now. On Sat, Apr 14, 2018, at 3:56 PM, Bart Van Assche wrote: > On 04/05/18 16:38, Lee wrote: > > On 4/5/18, Keith Mendoza wrote: > >> So again, at what point do we stop adding code to net-snmp because > >> ISP's are messing around as if they're doing us a favor by letting us > >> use their services? > > > > Since people don't read the docs, how about adding a test to see if > > dns is borked; if it is link to a faq entry for possible ways to fix > > it. > > > > verizon 'opt out of dns assistance' link: > > > > https://www.verizon.com/support/residential/internet/home-network/settings/opt-out-of-dns-assist > > How about the patch below? With this patch applied Net-SNMP developers can > make the tests pass easily by setting the NETSNMP_DNS_WORKAROUND environment > variable before running the tests and normal operation of snmpd is not > affected. > > Thanks, > > Bart. > > > > Subject: [PATCH] snmplib: Avoid that test T070com2sec_simple fails due > to DNS filtering > > --- > snmplib/system.c | 19 +++++++++++++++++++ > 1 file changed, 19 insertions(+) > > diff --git a/snmplib/system.c b/snmplib/system.c > index d7f06f74087f..28b832352247 100644 > --- a/snmplib/system.c > +++ b/snmplib/system.c > @@ -762,6 +762,24 @@ netsnmp_validator_context(void) > int > netsnmp_gethostbyname_v4(const char* name, in_addr_t *addr_out) > { > + if (getenv("NETSNMP_DNS_WORKAROUND")) { > + /* > + * A hack that avoids that T070com2sec_simple fails due to the > DNS > + * client filtering out 127.0.0.x addresses and/or redirecting > DNS > + * resolution failures to a web page. > + */ > + if (strcmp(name, "onea.net-snmp.org") == 0) { > + *addr_out = htonl(INADDR_LOOPBACK); > + return 0; > + } else if (strcmp(name, "twoa.net-snmp.org") == 0) { > + *addr_out = htonl(INADDR_LOOPBACK + 1); > + return 0; > + } else if (strcmp(name, "no.such.address.") == 0) { > + return -1; > + } > + } > + > + { > #if HAVE_GETADDRINFO > struct addrinfo *addrs = NULL; > struct addrinfo hint; > @@ -826,6 +844,7 @@ netsnmp_gethostbyname_v4(const char* name, in_addr_t > *addr_out) > #else /* HAVE_GETIPNODEBYNAME */ > return -1; > #endif > + } > } > > int > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Net-snmp-coders mailing list > Net-snmp-coders@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/net-snmp-coders
-- Thanks, Keith (pantherse) ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Net-snmp-coders mailing list Net-snmp-coders@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/net-snmp-coders
