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Merge pull request #1388 from emundo/fix/1387-dns-issue

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Fix macOS DNS issue
This commit is contained in:
Grant Limberg 2021-04-28 13:19:09 -07:00 committed by GitHub
commit 5fb814a04f
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 20 additions and 11 deletions
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31
osdep/MacDNSHelper.mm
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@ -39,18 +39,27 @@ void MacDNSHelper::setDNS(uint64_t nwid, const char *domain, const std::vector<I
sprintf(buf, "State:/Network/Service/%.16llx/DNS", nwid);
CFStringRef key = CFStringCreateWithCString(NULL, buf, kCFStringEncodingUTF8);
CFArrayRef list = SCDynamicStoreCopyKeyList(ds, key);
CFIndex i = 0, j = CFArrayGetCount(list);
bool ret = TRUE;
if (j <= 0) {
ret &= SCDynamicStoreAddValue(ds, key, dict);
} else {
ret &= SCDynamicStoreSetValue(ds, (CFStringRef)CFArrayGetValueAtIndex(list, i), dict);
bool dnsServersChanged = true;
CFPropertyListRef oldDNSServers = NULL;
if (j > 0) {
oldDNSServers = SCDynamicStoreCopyValue(ds, (CFStringRef)CFArrayGetValueAtIndex(list, i));
dnsServersChanged = !CFEqual(oldDNSServers,dict);
}
if (!ret) {
fprintf(stderr, "Error writing DNS configuration\n");
if (dnsServersChanged) {
bool ret = TRUE;
if (j <= 0) {
ret &= SCDynamicStoreAddValue(ds, key, dict);
} else {
ret &= SCDynamicStoreSetValue(ds, (CFStringRef)CFArrayGetValueAtIndex(list, i), dict);
}
if (!ret) {
fprintf(stderr, "Error writing DNS configuration\n");
}
}
if (oldDNSServers != NULL) {
CFRelease(oldDNSServers);
}
CFRelease(list);
CFRelease(key);
CFRelease(dict);
@ -63,8 +72,8 @@ void MacDNSHelper::setDNS(uint64_t nwid, const char *domain, const std::vector<I
delete[] s;
CFRelease(ds);
}
void MacDNSHelper::removeDNS(uint64_t nwid)
void MacDNSHelper::removeDNS(uint64_t nwid)
{
SCDynamicStoreRef ds = SCDynamicStoreCreate(NULL, CFSTR("zerotier"), NULL, NULL);