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/* Skeleton for test programs.
Copyright (C) 1998, 2000 Free Software Foundation, Inc.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <getopt.h>
#include <search.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/resource.h>
#include <sys/wait.h>
/* The test function is normally called `do_test' and it is called
with argc and argv as the arguments. We nevertheless provide the
possibility to overwrite this name. */
#ifndef TEST_FUNCTION
# define TEST_FUNCTION do_test (argc, argv)
#endif
#define OPT_DIRECT 1000
#define OPT_TESTDIR 1001
static struct option options[] =
{
#ifdef CMDLINE_OPTIONS
CMDLINE_OPTIONS
#endif
{ "direct", no_argument, NULL, OPT_DIRECT },
{ "test-dir", required_argument, NULL, OPT_TESTDIR },
{ NULL, 0, NULL, 0 }
};
/* PID of the test itself. */
static int pid;
/* Directory to place temporary files in. */
static const char *test_dir;
/* List of temporary files. */
struct name_list
{
struct qelem q;
const char *name;
} *name_list;
/* Add temporary files in list. */
static void
add_temp_file (const char *name)
{
struct name_list *newp = (struct name_list *) calloc (sizeof (*newp), 1);
if (newp != NULL)
{
newp->name = name;
if (name_list == NULL)
name_list = (struct name_list *) &newp->q;
else
insque (newp, name_list);
}
}
/* Delete all temporary files. */
static void
delete_temp_files (void)
{
while (name_list != NULL)
{
remove (name_list->name);
name_list = (struct name_list *) name_list->q.q_forw;
}
}
/* Timeout handler. We kill the child and exit with an error. */
static void
__attribute__ ((noreturn))
timeout_handler (int sig __attribute__ ((unused)))
{
int killed;
/* Send signal. */
kill (pid, SIGKILL);
/* Wait for it to terminate. */
killed = waitpid (pid, NULL, WNOHANG);
if (killed != 0 && killed != pid)
{
perror ("Failed to killed test process");
exit (1);
}
#ifdef CLEANUP_HANDLER
CLEANUP_HANDLER;
#endif
fputs ("Timed out: killed the child process\n", stderr);
/* Exit with an error. */
exit (1);
}
/* We provide the entry point here. */
int
main (int argc, char *argv[])
{
int direct = 0; /* Directly call the test function? */
int status;
int opt;
#ifdef STDOUT_UNBUFFERED
setbuf (stdout, NULL);
#endif
while ((opt = getopt_long (argc, argv, "", options, NULL)) != -1)
switch (opt)
{
case '?':
exit (1);
case OPT_DIRECT:
direct = 1;
break;
case OPT_TESTDIR:
test_dir = optarg;
break;
#ifdef CMDLINE_PROCESS
CMDLINE_PROCESS
#endif
}
/* Set TMPDIR to specified test directory. */
if (test_dir != NULL)
{
setenv ("TMPDIR", test_dir, 1);
if (chdir (test_dir) < 0)
{
perror ("chdir");
exit (1);
}
}
else
{
test_dir = getenv ("TMPDIR");
if (test_dir == NULL || test_dir[0] == '\0')
test_dir = "/tmp";
}
/* Make sure we see all message, even those on stdout. */
setvbuf (stdout, NULL, _IONBF, 0);
/* make sure temporary files are deleted. */
atexit (delete_temp_files);
/* Correct for the possible parameters. */
argv += optind - 1;
argc -= optind - 1;
/* Call the initializing function, if one is available. */
#ifdef PREPARE
PREPARE (argc, argv);
#endif
/* If we are not expected to fork run the function immediately. */
if (direct)
return TEST_FUNCTION;
/* Set up the test environment:
- prevent core dumps
- set up the timer
- fork and execute the function. */
pid = fork ();
if (pid == 0)
{
/* This is the child. */
#ifdef RLIMIT_CORE
/* Try to avoid dumping core. */
struct rlimit core_limit;
core_limit.rlim_cur = 0;
core_limit.rlim_max = 0;
setrlimit (RLIMIT_CORE, &core_limit);
#endif
/* Execute the test function and exit with the return value. */
exit (TEST_FUNCTION);
}
else if (pid < 0)
{
perror ("Cannot fork test program");
exit (1);
}
/* Set timeout. */
#ifndef TIMEOUT
/* Default timeout is two seconds. */
# define TIMEOUT 2
#endif
alarm (TIMEOUT);
signal (SIGALRM, timeout_handler);
/* Wait for the regular termination. */
if (waitpid (pid, &status, 0) != pid)
{
perror ("Oops, wrong test program terminated");
exit (1);
}
#ifndef EXPECTED_SIGNAL
/* We don't expect any signal. */
# define EXPECTED_SIGNAL 0
#endif
if (WTERMSIG (status) != EXPECTED_SIGNAL)
{
if (EXPECTED_SIGNAL != 0)
fprintf (stderr, "Incorrect signal from child: got `%s', need `%s'\n",
strsignal (WTERMSIG (status)), strsignal (EXPECTED_SIGNAL));
else
fprintf (stderr, "Didn't expect signal from child: got `%s'\n",
strsignal (WTERMSIG (status)));
exit (1);
}
/* Simply exit with the return value of the test. */
return WEXITSTATUS (status);
}
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