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Add search domain to macos dns configuration

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Stumbled upon this while debugging something else.
If we add search domain to our system configuration for
network DNS, then search domains work:

```
ping server1                                                                                                                                                                                    ~
PING server1.my.domain (10.123.3.1): 56 data bytes
64 bytes from 10.123.3.1
```
This commit is contained in:
travisladuke 2023-07-25 11:54:01 -07:00 committed by Travis LaDuke
parent fb6af1971b
commit 5b5ef07350
1 changed files with 9 additions and 3 deletions
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12
osdep/MacDNSHelper.mm
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@ -25,19 +25,23 @@ void MacDNSHelper::setDNS(uint64_t nwid, const char *domain, const std::vector<I
CFArrayRef serverArray = CFArrayCreate(NULL, (const void**)s, servers.size(), &kCFTypeArrayCallBacks);
CFStringRef keys[2];
CFStringRef keys[3];
keys[0] = CFSTR("SupplementalMatchDomains");
keys[1] = CFSTR("ServerAddresses");
keys[2] = CFSTR("SearchDomains");
CFStringRef cfdomain = CFStringCreateWithCString(NULL, domain, kCFStringEncodingUTF8);
CFStringRef cfdomain2 = CFStringCreateWithCString(NULL, domain, kCFStringEncodingUTF8);
CFArrayRef domainArray = CFArrayCreate(NULL, (const void**)&cfdomain, 1, &kCFTypeArrayCallBacks);
CFArrayRef domainArray2 = CFArrayCreate(NULL, (const void**)&cfdomain2, 1, &kCFTypeArrayCallBacks);
CFTypeRef values[2];
CFTypeRef values[3];
values[0] = domainArray;
values[1] = serverArray;
values[2] = domainArray2;
CFDictionaryRef dict = CFDictionaryCreate(NULL,
(const void**)keys, (const void**)values, 2, &kCFCopyStringDictionaryKeyCallBacks,
(const void**)keys, (const void**)values, 3, &kCFCopyStringDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
char buf[256] = {0};
@ -69,7 +73,9 @@ void MacDNSHelper::setDNS(uint64_t nwid, const char *domain, const std::vector<I
CFRelease(key);
CFRelease(dict);
CFRelease(domainArray);
CFRelease(domainArray2);
CFRelease(cfdomain);
CFRelease(cfdomain2);
CFRelease(serverArray);
for (int i = 0; i < servers.size(); ++i) {
CFRelease(s[i]);