Move c-stack test into testsuite.

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

diff --git a/tests/test-c-stack.c b/tests/test-c-stack.c
new file mode 100644 (file)
index 0000000..13c1a12
--- /dev/null
+++ b/tests/test-c-stack.c
@@ -0,0 +1,68 @@
+/* Test of c-stack module.
+   Copyright (C) 2002, 2004, 2006, 2008 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
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include "c-stack.h"
+
+#include "exitfail.h"
+#include <stdio.h>
+#include <stdlib.h>
+#if HAVE_SETRLIMIT
+# include <sys/resource.h>
+#endif
+
+#define ASSERT(expr) \
+  do                                                                        \
+    {                                                                       \
+      if (!(expr))                                                          \
+        {                                                                   \
+          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+          fflush (stderr);                                                  \
+          abort ();                                                         \
+        }                                                                   \
+    }                                                                       \
+  while (0)
+
+static long
+recurse (char *p)
+{
+  char array[500];
+  array[0] = 1;
+  return *p + recurse (array);
+}
+
+char *program_name;
+
+int
+main (int argc, char **argv)
+{
+   program_name = argv[0];
+#if HAVE_SETRLIMIT && defined RLIMIT_STACK
+   /* Before starting the endless recursion, try to be friendly to the
+      user's machine.  On some Linux 2.2.x systems, there is no stack
+      limit for user processes at all.  We don't want to kill such
+      systems.  */
+   struct rlimit rl;
+   rl.rlim_cur = rl.rlim_max = 0x100000; /* 1 MB */
+   setrlimit (RLIMIT_STACK, &rl);
+#endif
+
+  if (c_stack_action (0) == 0)
+    return recurse ("\1");
+  perror ("c_stack_action");
+  return 77;
+}