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Check if DNS servers need to be Applied on macOS

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Robert.Schreib 2021-04-21 12:02:31 +02:00
parent e8f7d5ef9e
commit 31ffe4403c
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1 changed files with 13 additions and 9 deletions
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22
osdep/MacDNSHelper.mm
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@ -39,18 +39,22 @@ void MacDNSHelper::setDNS(uint64_t nwid, const char *domain, const std::vector<I
sprintf(buf, "State:/Network/Service/%.16llx/DNS", nwid); sprintf(buf, "State:/Network/Service/%.16llx/DNS", nwid);
CFStringRef key = CFStringCreateWithCString(NULL, buf, kCFStringEncodingUTF8); CFStringRef key = CFStringCreateWithCString(NULL, buf, kCFStringEncodingUTF8);
CFArrayRef list = SCDynamicStoreCopyKeyList(ds, key); CFArrayRef list = SCDynamicStoreCopyKeyList(ds, key);
CFIndex i = 0, j = CFArrayGetCount(list); CFIndex i = 0, j = CFArrayGetCount(list);
bool ret = TRUE;
if (j <= 0) { CFPropertyListRef oldDNSServers = SCDynamicStoreCopyValue(ds, (CFStringRef)CFArrayGetValueAtIndex(list, i));
ret &= SCDynamicStoreAddValue(ds, key, dict); if (!CFEqual(oldDNSServers,dict)) {
} else { bool ret = TRUE;
ret &= SCDynamicStoreSetValue(ds, (CFStringRef)CFArrayGetValueAtIndex(list, i), dict); if (j <= 0) {
} ret &= SCDynamicStoreAddValue(ds, key, dict);
if (!ret) { } else {
fprintf(stderr, "Error writing DNS configuration\n"); ret &= SCDynamicStoreSetValue(ds, (CFStringRef)CFArrayGetValueAtIndex(list, i), dict);
}
if (!ret) {
fprintf(stderr, "Error writing DNS configuration\n");
}
} }
CFRelease(oldDNSServers);
CFRelease(list); CFRelease(list);
CFRelease(key); CFRelease(key);
CFRelease(dict); CFRelease(dict);