Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 175 insertions, 0 deletions

diff --git a/REORG.TODO/posix/tst-vfork3.c b/REORG.TODO/posix/tst-vfork3.c
new file mode 100644
index 0000000000..80898b3e41
--- /dev/null
+++ b/REORG.TODO/posix/tst-vfork3.c
@@ -0,0 +1,175 @@
+/* Test for vfork functions.
+   Copyright (C) 2007-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2007.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <mcheck.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+static int do_test (void);
+static void do_prepare (void);
+char *tmpdirname;
+
+#define TEST_FUNCTION do_test ()
+#define PREPARE(argc, argv) do_prepare ()
+#include "../test-skeleton.c"
+
+static void
+run_script (const char *script, char *const argv[])
+{
+  for (size_t i = 0; i < 5; i++)
+    {
+      pid_t pid = vfork ();
+      if (pid < 0)
+	FAIL_EXIT1 ("vfork failed: %m");
+      else if (pid == 0)
+	{
+	  execvp (script, argv);
+	  _exit (errno);
+	}
+
+      int status;
+      if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
+	FAIL_EXIT1 ("waitpid failed");
+      else if (status != 0)
+	{
+	  if (WIFEXITED (status))
+	    FAIL_EXIT1 ("%s failed with status %d\n", script,
+			WEXITSTATUS (status));
+	  else
+	    FAIL_EXIT1 ("%s killed by signal %d\n", script,
+			WTERMSIG (status));
+	}
+    }
+}
+
+static int
+do_test (void)
+{
+  mtrace ();
+
+  const char *path = getenv ("PATH");
+  if (path == NULL)
+    path = "/bin";
+  char pathbuf[strlen (tmpdirname) + 1 + strlen (path) + 1];
+  strcpy (stpcpy (stpcpy (pathbuf, tmpdirname), ":"), path);
+  if (setenv ("PATH", pathbuf, 1) < 0)
+    {
+      puts ("setenv failed");
+      return 1;
+    }
+
+  /* Although manual states first argument should be the script name itself,
+     current execv{p,e} implementation allows it.  */
+  char *argv00[] = { NULL };
+  run_script ("script0.sh", argv00);
+
+  char *argv01[] = { (char*) "script0.sh", NULL };
+  run_script ("script0.sh", argv01);
+
+  char *argv1[] = { (char *) "script1.sh", (char *) "1", NULL };
+  run_script ("script1.sh", argv1);
+
+  char *argv2[] = { (char *) "script2.sh", (char *) "2", NULL };
+  run_script ("script2.sh", argv2);
+
+  /* Same as before but with execlp.  */
+  for (size_t i = 0; i < 5; i++)
+    {
+      pid_t pid = vfork ();
+      if (pid < 0)
+	{
+	  printf ("vfork failed: %m\n");
+	  return 1;
+	}
+      else if (pid == 0)
+	{
+	  execlp ("script2.sh", "script2.sh", "3", NULL);
+	  _exit (errno);
+	}
+      int status;
+      if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
+	{
+	  puts ("waitpid failed");
+	  return 1;
+	}
+      else if (status != 0)
+	{
+	  printf ("script2.sh failed with status %d\n", status);
+	  return 1;
+	}
+    }
+
+  unsetenv ("PATH");
+  char *argv4[] = { (char *) "echo", (char *) "script 4", NULL };
+  run_script ("echo", argv4);
+
+  return 0;
+}
+
+static void
+create_script (const char *script, const char *contents, size_t size)
+{
+  int fd = open (script, O_WRONLY | O_CREAT, 0700);
+  if (fd < 0
+      || TEMP_FAILURE_RETRY (write (fd, contents, size)) != size
+      || fchmod (fd, S_IRUSR | S_IXUSR) < 0)
+    FAIL_EXIT1 ("could not write %s\n", script);
+  close (fd);
+}
+
+static void
+do_prepare (void)
+{
+  size_t len = strlen (test_dir) + sizeof ("/tst-vfork3.XXXXXX");
+  tmpdirname = malloc (len);
+  if (tmpdirname == NULL)
+    FAIL_EXIT1 ("out of memory");
+  strcpy (stpcpy (tmpdirname, test_dir), "/tst-vfork3.XXXXXX");
+
+  tmpdirname = mkdtemp (tmpdirname);
+  if (tmpdirname == NULL)
+    FAIL_EXIT1 ("could not create temporary directory");
+
+  char script0[len + sizeof "/script0.sh"];
+  char script1[len + sizeof "/script1.sh"];
+  char script2[len + sizeof "/script2.sh"];
+
+  strcpy (stpcpy (script0, tmpdirname), "/script0.sh");
+  strcpy (stpcpy (script1, tmpdirname), "/script1.sh");
+  strcpy (stpcpy (script2, tmpdirname), "/script2.sh");
+
+  add_temp_file (tmpdirname);
+  add_temp_file (script0);
+  add_temp_file (script1);
+  add_temp_file (script2);
+
+  const char content0[] = "#!/bin/sh\necho empty\n";
+  create_script (script0, content0, sizeof content0);
+
+  const char content1[] = "#!/bin/sh\necho script $1\n";
+  create_script (script1, content1, sizeof content1);
+
+  const char content2[] = "echo script $1\n";
+  create_script (script2, content2, sizeof content2);
+}