maint: update all copyright year number ranges

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

diff --git a/tests/test-passfd.c b/tests/test-passfd.c
index ca46266..c11a828 100644 (file)
--- a/tests/test-passfd.c
+++ b/tests/test-passfd.c
@@ -1,5 +1,5 @@
 /* Test of passing file descriptors.
-   Copyright (C) 2011 Free Software Foundation, Inc.
+   Copyright (C) 2011-2013 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -18,19 +18,23 @@
 
 #include "passfd.h"
 
+#include <errno.h>
 #include <fcntl.h>
+#include <signal.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <sys/stat.h>
+#include <sys/wait.h>
 
 #include "macros.h"
 
 int
 main ()
 {
+#if HAVE_SOCKETPAIR
   int pair[2];
   int ret;
   pid_t pid;
@@ -39,6 +43,12 @@ main ()
   int fd;
   struct stat st;
 
+# if HAVE_DECL_ALARM
+  /* Avoid hanging on failure.  */
+  signal (SIGALRM, SIG_DFL);
+  alarm (5);
+# endif
+
   fdnull = open ("/dev/null", O_RDWR);
   if (fdnull < 0)
     {
@@ -86,8 +96,7 @@ main ()
         }
       ASSERT (ret == pid);
 
-      ret = WIFEXITED (status);
-      if (ret == 0)
+      if (!WIFEXITED (status))
         {
           fprintf (stderr, "Child does not normally exit\n");
           return 65;
@@ -100,12 +109,25 @@ main ()
         }
 
       /* try to stat new fd */
-      ret == fstat (fd, &st);
-      if (0 != ret)
+      ret = fstat (fd, &st);
+      if (ret < 0)
         {
           perror ("fstat");
           return 80;
         }
       return 0;
     }
+#else
+  errno = 0;
+  ASSERT(sendfd (0, 0) == -1);
+  ASSERT(errno == ENOSYS);
+
+  errno = 0;
+  ASSERT(recvfd (0, 0) == -1);
+  ASSERT(errno == ENOSYS);
+
+  fputs ("skipping test: socketpair not supported on this system\n",
+         stderr);
+  return 77;
+#endif
 }