From 49ef73f7193242eac07de27c2e853d9e805162ec Mon Sep 17 00:00:00 2001
From: Paul Howarth <paul@city-fan.org>
Date: Wed, 3 May 2017 11:57:23 +0100
Subject: [PATCH] Add --enable-tests=nonetwork option

This disables API tests that involve resolving/connecting to external
network services such as Google, which may not be possible in some
build environments.

Tested using systemd-nspawn --private-network
---
 config.h.in         | 3 +++
 configure.in        | 5 ++++-
 tests/api/inet.c    | 6 ++++++
 tests/api/netaddr.c | 6 ++++++
 4 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/config.h.in b/config.h.in
index a38734a..229c9db 100644
--- a/config.h.in
+++ b/config.h.in
@@ -1068,6 +1068,9 @@
 /* Define if ncursesw support, if available, should be used.  */
 #undef PR_USE_NCURSESW
 
+/* Define if non-local network tests are enabled. */
+#undef PR_USE_NETWORK_TESTS
+
 /* Define if using nonblocking open of log files.  */
 #undef PR_USE_NONBLOCKING_LOG_OPEN
 
diff --git a/configure.in b/configure.in
index 1e39c37..dba39ba 100644
--- a/configure.in
+++ b/configure.in
@@ -985,7 +985,7 @@ AC_ARG_ENABLE(tests,
     [--enable-tests],
     [enable unit tests (default=no)])
   ],
-  [ if test x"$enableval" = x"yes" ; then
+  [ if test x"$enableval" = x"yes" || test  x"$enableval" = x"nonetwork" ; then
       AC_CHECK_HEADERS(check.h)
 
       AC_CHECK_LIB(check, tcase_create,
@@ -997,6 +997,9 @@ AC_ARG_ENABLE(tests,
          AC_MSG_ERROR([libcheck support, required for tests, not present -- aborting])
         ]
       )
+      if test  x"$enableval" != x"nonetwork" ; then
+        AC_DEFINE(PR_USE_NETWORK_TESTS, 1, [Define if non-local network tests are enabled.])
+      fi
     fi
   ])
 
diff -up a/configure b/configure
--- a/configure
+++ b/configure
@@ -20423,7 +20423,7 @@ fi
 ENABLE_TESTS="\"\""
 # Check whether --enable-tests was given.
 if test "${enable_tests+set}" = set; then
-  enableval=$enable_tests;  if test x"$enableval" = x"yes" ; then
+  enableval=$enable_tests;  if test x"$enableval" = x"yes" || test  x"$enableval" = x"nonetwork" ; then
 
 for ac_header in check.h
 do
@@ -20648,6 +20648,13 @@ echo "$as_me: error: libcheck support, r
 
 fi
 
+      if test  x"$enableval" != x"nonetwork" ; then
+
+cat >>confdefs.h <<\_ACEOF
+#define PR_USE_NETWORK_TESTS 1
+_ACEOF
+
+      fi
     fi
 
 fi
diff --git a/tests/api/inet.c b/tests/api/inet.c
index 03c4781..c111629 100644
--- a/tests/api/inet.c
+++ b/tests/api/inet.c
@@ -522,6 +522,7 @@ START_TEST (inet_connect_ipv4_test) {
   fail_unless(errno == ECONNREFUSED, "Expected ECONNREFUSED (%d), got %s (%d)",
     ECONNREFUSED, strerror(errno), errno);
 
+#if defined(PR_USE_NETWORK_TESTS)
   /* Try connecting to Google's DNS server. */
 
   addr = pr_netaddr_get_addr(p, "8.8.8.8", NULL);
@@ -551,6 +552,7 @@ START_TEST (inet_connect_ipv4_test) {
   fail_unless(errno == EISCONN, "Expected EISCONN (%d), got %s (%d)",
     EISCONN, strerror(errno), errno);
   pr_inet_close(p, conn);
+#endif
 }
 END_TEST
 
@@ -579,6 +581,7 @@ START_TEST (inet_connect_ipv6_test) {
     "Expected ECONNREFUSED (%d), ENETUNREACH (%d), or EADDRNOTAVAIL (%d), got %s (%d)",
     ECONNREFUSED, ENETUNREACH, EADDRNOTAVAIL, strerror(errno), errno);
 
+#if defined(PR_USE_NETWORK_TESTS)
   /* Try connecting to Google's DNS server. */
 
   addr = pr_netaddr_get_addr(p, "2001:4860:4860::8888", NULL);
@@ -614,6 +617,7 @@ START_TEST (inet_connect_ipv6_test) {
   fail_unless(errno == EISCONN || errno == EHOSTUNREACH || errno == ENETUNREACH || errno == EADDRNOTAVAIL,
     "Expected EISCONN (%d) or EHOSTUNREACH (%d) or ENETUNREACH (%d) or EADDRNOTAVAIL (%d), got %s (%d)", EISCONN, EHOSTUNREACH, ENETUNREACH, EADDRNOTAVAIL, strerror(errno), errno);
   pr_inet_close(p, conn);
+#endif
 
   pr_inet_set_default_family(p, AF_INET);
 
@@ -649,6 +653,7 @@ START_TEST (inet_connect_nowait_test) {
   res = pr_inet_connect_nowait(p, conn, addr, 180);
   fail_unless(res != -1, "Connected to 127.0.0.1#180 unexpectedly");
 
+#if defined(PR_USE_NETWORK_TESTS)
   /* Try connecting to Google's DNS server. */
 
   addr = pr_netaddr_get_addr(p, "8.8.8.8", NULL);
@@ -664,6 +669,7 @@ START_TEST (inet_connect_nowait_test) {
   }
 
   pr_inet_close(p, conn);
+#endif
 
   /* Restore the default family to AF_INET, for other tests. */
   pr_inet_set_default_family(p, AF_INET);
diff --git a/tests/api/netaddr.c b/tests/api/netaddr.c
index 80d3327..124dc39 100644
--- a/tests/api/netaddr.c
+++ b/tests/api/netaddr.c
@@ -146,6 +146,7 @@ START_TEST (netaddr_get_addr_test) {
   fail_unless(res->na_family == AF_INET, "Expected family %d, got %d",
     AF_INET, res->na_family);
 
+#if defined(PR_USE_NETWORK_TESTS)
   /* Google: the Dial Tone of the Internet. */
   name = "www.google.com";
 
@@ -161,6 +162,7 @@ START_TEST (netaddr_get_addr_test) {
     strerror(errno));
   fail_unless(res->na_family == AF_INET, "Expected family %d, got %d",
     AF_INET, res->na_family);
+#endif
 
   name = "127.0.0.1";
 
@@ -903,6 +905,7 @@ START_TEST (netaddr_get_dnsstr_list_test) {
 
   pr_netaddr_clear_cache();
 
+#if defined(PR_USE_NETWORK_TESTS)
   addr = pr_netaddr_get_addr(p, "www.google.com", &addrs);
   fail_unless(addr != NULL, "Failed to resolve 'www.google.com': %s",
     strerror(errno));
@@ -921,6 +924,7 @@ START_TEST (netaddr_get_dnsstr_list_test) {
   /* Ideally we would check that res->nelts > 0, BUT this turns out to
    * a fragile test condition, dependent on DNS vagaries.
    */
+#endif
 
   pr_netaddr_set_reverse_dns(reverse_dns);
 }
@@ -1082,6 +1086,7 @@ START_TEST (netaddr_is_loopback_test) {
   fail_unless(errno == EINVAL, "Expected EINVAL (%d), got %s (%d)", EINVAL,
     strerror(errno), errno);
 
+#if defined(PR_USE_NETWORK_TESTS)
   name = "www.google.com";
   addr = pr_netaddr_get_addr(p, name, NULL);
   fail_unless(addr != NULL, "Failed to resolve '%s': %s", name,
@@ -1089,6 +1094,7 @@ START_TEST (netaddr_is_loopback_test) {
 
   res = pr_netaddr_is_loopback(addr);
   fail_unless(res == FALSE, "Expected FALSE, got %d", res);
+#endif
 
   name = "127.0.0.1";
   addr = pr_netaddr_get_addr(p, name, NULL);
-- 
2.9.3