svn commit: r343751 - head/lib/libc/tests/sys

[Enji Cooper]

Author: ngie
Date: Mon Feb  4 19:12:45 2019
New Revision: 343751
URL: https://svnweb.freebsd.org/changeset/base/343751

Log:
  Avoid the DNS lookup for "localhost"
  
  ci.FreeBSD.org does not have access to a DNS resolver/network (unlike my test
  VM), so in order for the test to pass on the host, it needs to avoid the DNS
  lookup by using the numeric host address representation.
  
  PR:		235200
  Reviewed by:	asomers, lwhsu
  Approved by:	emaste (mentor)
  MFC after:	2 weeks
  MFC with:	r343362, r343365, r343367-r343368, r343461
  Differential Revision: https://reviews.freebsd.org/D19026

Modified:
  head/lib/libc/tests/sys/sendfile_test.c

Modified: head/lib/libc/tests/sys/sendfile_test.c
==============================================================================
--- head/lib/libc/tests/sys/sendfile_test.c	Mon Feb  4 18:30:47 2019	(r343750)
+++ head/lib/libc/tests/sys/sendfile_test.c	Mon Feb  4 19:12:45 2019	(r343751)
@@ -97,22 +97,31 @@ generate_random_port(int seed)
 static void
 resolve_localhost(struct addrinfo **res, int domain, int type, int port)
 {
+	const char *host;
 	char *serv;
 	struct addrinfo hints;
 	int error;
 
-	ATF_REQUIRE_MSG(domain == AF_INET || domain == AF_INET6,
-	    "unhandled domain: %d", domain);
+	switch (domain) {
+	case AF_INET:
+		host = "127.0.0.1";
+		break;
+	case AF_INET6:
+		host = "::1";
+		break;
+	default:
+		atf_tc_fail("unhandled domain: %d", domain);
+	}
 
 	ATF_REQUIRE_MSG(asprintf(&serv, "%d", port) >= 0,
 	    "asprintf failed: %s", strerror(errno));
 
 	memset(&hints, 0, sizeof(hints));
 	hints.ai_family = domain;
-	hints.ai_flags = AI_ADDRCONFIG|AI_NUMERICSERV;
+	hints.ai_flags = AI_ADDRCONFIG|AI_NUMERICSERV|AI_NUMERICHOST;
 	hints.ai_socktype = type;
 
-	error = getaddrinfo("localhost", serv, &hints, res);
+	error = getaddrinfo(host, serv, &hints, res);
 	ATF_REQUIRE_EQ_MSG(error, 0,
 	    "getaddrinfo failed: %s", gai_strerror(error));
 	free(serv);