Update.

2000-06-09  H.J. Lu  <hjl@gnu.org>

	* dlfcn/dlerror.c (_dlerror_run): Set result->errstring to NULL
	after freeing it.

	* dlfcn/Makefile (distribute): Add failtestmod.c.
	(tests): Add failtest.
	Add rules to build and run failtest.
	* dlfcn/failtest.c: New file.
	* dlfcn/failtestmod.c: New file.

1 files changed, 58 insertions, 0 deletions

diff --git a/dlfcn/failtest.c b/dlfcn/failtest.c
new file mode 100644
index 0000000000..50bbf10596
--- /dev/null
+++ b/dlfcn/failtest.c
@@ -0,0 +1,58 @@
+#include <dlfcn.h>
+#include <stdio.h>
+
+
+/* Number of rounds we perform the test.  */
+#define TEST_ROUNDS	10
+
+
+static const char unknown[] = "a-file-with-this-name-does-not-exist";
+static const char exists[] = "failtestmod.so";
+
+
+int
+main (void)
+{
+  int i;
+
+  setvbuf (stdout, NULL, _IONBF, 0);
+
+  for (i = 0; i < TEST_ROUNDS; ++i)
+    {
+      void *dsc;
+
+      printf ("Round %d: Try loading \"%s\"\n", i, unknown);
+
+      dsc = dlopen (unknown, RTLD_NOW);
+      if (dsc != NULL)
+	{
+	  printf ("We found a file of name \"%s\": this should not happen\n",
+		  unknown);
+	  return 1;
+	}
+
+      printf ("Round %d: loading \"%s\" failed\n", i, unknown);
+
+      /* Don't use `dlerror', just load an existing file.  */
+      dsc = dlopen (exists, RTLD_NOW);
+      if (dsc == NULL)
+	{
+	  printf ("Could not load \"%s\": %s\n", exists, dlerror ());
+	  return 1;
+	}
+
+      printf ("Round %d: Loaded \"%s\"\n", i, exists);
+
+      dlclose (dsc);
+
+      printf ("Round %d: Unloaded \"%s\"\n", i, exists);
+    }
+
+  return 0;
+}
+
+
+void
+foo (void)
+{
+}