test-strerror: make debugging EAI_SYSTEM easier

[gnulib.git] / tests / test-getaddrinfo.c

diff --git a/tests/test-getaddrinfo.c b/tests/test-getaddrinfo.c
index 5e33bb2..4816920 100644 (file)
--- a/tests/test-getaddrinfo.c
+++ b/tests/test-getaddrinfo.c
@@ -19,7 +19,9 @@
 
 #include <config.h>
 #include <netdb.h>
+
 #include <arpa/inet.h>
+#include <errno.h>
 #include <netinet/in.h>
 #include <stdio.h>
 #include <string.h>
@@ -49,6 +51,7 @@ int simple (char *host, char *service)
   struct addrinfo hints;
   struct addrinfo *ai0, *ai;
   int res;
+  int err;
 
   /* Once we skipped the test, do not try anything else */
   if (skip)
@@ -64,6 +67,7 @@ int simple (char *host, char *service)
   hints.ai_socktype = SOCK_STREAM;
 
   res = getaddrinfo (host, service, 0, &ai0);
+  err = errno;
 
   dbgprintf ("res %d: %s\n", res, gai_strerror (res));
 
@@ -90,6 +94,9 @@ int simple (char *host, char *service)
         merely because of this.  */
       if (res == EAI_NODATA)
        return 0;
+      /* Provide details if errno was set.  */
+      if (res == EAI_SYSTEM)
+         dbgprintf ("system error: %s\n", strerror (err));
 
       return 1;
     }