epics/pvxs
0
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ifaddrs::ifa_addr can be NULL

Browse Source
This commit is contained in:
Michael Davidsaver
2022-06-14 10:32:15 -07:00
parent ba2cfee3c8
commit 90131d0a85
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/os/default/osdSockExt.cpp
+2 -2
View File
@@ -214,7 +214,7 @@ decltype (IfaceMap::byIndex) IfaceMap::_refresh() {
try {
for(const ifaddrs* ifa = addrs; ifa; ifa = ifa->ifa_next) {
const auto af = ifa->ifa_addr->sa_family;
const auto af = ifa->ifa_addr ? ifa->ifa_addr->sa_family : AF_UNSPEC;
if((af!=AF_INET && af!=AF_INET6) || ifa->ifa_name[0]=='\0') {
log_debug_printf(logiface, "Ignoring interface '%s' address family=%d\n",
ifa->ifa_name, af);
@@ -242,7 +242,7 @@ decltype (IfaceMap::byIndex) IfaceMap::_refresh() {
}
// IFF_BROADCAST does not apply to IPv6
bool hasB = ifa->ifa_addr->sa_family==AF_INET && (ifa->ifa_flags&IFF_BROADCAST);
bool hasB = af==AF_INET && (ifa->ifa_flags&IFF_BROADCAST) && ifa->ifa_broadaddr;
auto pair = it->second.addrs.emplace(SockAddr(ifa->ifa_addr),
SockAddr(hasB ? ifa->ifa_broadaddr : nullptr));