[PATCH] D67230: Remove call to obsolete gethostbyname, using getaddrinfo

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This revision was automatically updated to reflect the committed changes.
Closed by commit rL371195: Remove call to obsolete gethostbyname, using getaddrinfo (authored by serge_sans_paille, committed by ).
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Herald added a subscriber: llvm-commits.

Changed prior to commit:
  https://reviews.llvm.org/D67230?vs=218940&id=219060#toc

Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D67230/new/

https://reviews.llvm.org/D67230

Files:
  lldb/trunk/source/Host/posix/HostInfoPosix.cpp


Index: lldb/trunk/source/Host/posix/HostInfoPosix.cpp
===================================================================
--- lldb/trunk/source/Host/posix/HostInfoPosix.cpp
+++ lldb/trunk/source/Host/posix/HostInfoPosix.cpp
@@ -32,10 +32,16 @@
   char hostname[PATH_MAX];
   hostname[sizeof(hostname) - 1] = '\0';
   if (::gethostname(hostname, sizeof(hostname) - 1) == 0) {
-    struct hostent *h = ::gethostbyname(hostname);
-    if (h)
-      s.assign(h->h_name);
-    else
+    struct addrinfo hints;
+    struct addrinfo *res = nullptr;
+    std::memset(&hints, 0, sizeof(hints));
+    hints.ai_flags = AI_CANONNAME;
+    int err = ::getaddrinfo(hostname, nullptr, &hints, &res);
+    if (err == 0) {
+      assert(res->ai_canonname && "getaddrinfo found a canonical name");
+      s.assign(res->ai_canonname);
+      freeaddrinfo(res);
+    } else
       s.assign(hostname);
     return true;
   }


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