net-snmp/net-snmp-5.9-twice-IP-parsing.patch
2021-03-15 11:29:51 +01:00

35 lines
1.7 KiB
Diff

diff --git a/snmplib/transports/snmpUDPDomain.c b/snmplib/transports/snmpUDPDomain.c
index b96497f3a..b594a389b 100644
--- a/snmplib/transports/snmpUDPDomain.c
+++ b/snmplib/transports/snmpUDPDomain.c
@@ -387,7 +387,7 @@ netsnmp_udp_parse_security(const char *token, char *param)
/* Nope, wasn't a dotted quad. Must be a hostname. */
int ret = netsnmp_gethostbyname_v4(sourcep, &network.s_addr);
if (ret < 0) {
- config_perror("cannot resolve source hostname");
+ config_perror("cannot resolve IPv4 source hostname");
return;
}
}
diff --git a/snmplib/transports/snmpUDPIPv6Domain.c b/snmplib/transports/snmpUDPIPv6Domain.c
index 238c8a9d6..43c4eaee1 100644
--- a/snmplib/transports/snmpUDPIPv6Domain.c
+++ b/snmplib/transports/snmpUDPIPv6Domain.c
@@ -736,7 +736,15 @@ netsnmp_udp6_parse_security(const char *token, char *param)
memset(&pton_addr.sin6_addr.s6_addr, '\0',
sizeof(struct in6_addr));
} else if (inet_pton(AF_INET6, sourcep, &pton_addr.sin6_addr) != 1) {
- /* Nope, wasn't a numeric address. Must be a hostname. */
+ /* Nope, wasn't a numeric IPv6 address. Must be IPv4 or a hostname. */
+
+ /* Try interpreting as dotted quad - IPv4 */
+ struct in_addr network;
+ if (inet_pton(AF_INET, sourcep, &network) > 0){
+ /* Yes, it's IPv4 - those it's already parsed and we can return. */
+ DEBUGMSGTL(("com2sec6", "IPv4 detected for IPv6 parser. Skipping.\n"));
+ return;
+ }
#if HAVE_GETADDRINFO
int gai_error;