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-rw-r--r--test/test-skeleton.c419
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diff --git a/test/test-skeleton.c b/test/test-skeleton.c
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-/* Skeleton for test programs.
- Copyright (C) 1998,2000-2004, 2005 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- 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 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 <assert.h>
-#include <errno.h>
-#include <getopt.h>
-#include <malloc.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>
-#include <sys/param.h>
-#include <time.h>
-#include <features.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
-
-#ifndef TEST_DATA_LIMIT
-# define TEST_DATA_LIMIT (64 << 20) /* Data limit (bytes) to run with. */
-#endif
-
-/* PID of the test itself. */
-static pid_t pid;
-
-/* Directory to place temporary files in. */
-static const char *test_dir;
-
-/* List of temporary files. */
-struct temp_name_list
-{
- struct qelem q;
- char *name;
-} *temp_name_list;
-
-/* Add temporary files in list. */
-static void
-__attribute__ ((unused))
-add_temp_file (const char *name)
-{
- struct temp_name_list *newp
- = (struct temp_name_list *) calloc (sizeof (*newp), 1);
- char *newname = strdup (name);
- if (newp != NULL && newname != NULL)
- {
- newp->name = newname;
- if (temp_name_list == NULL)
- temp_name_list = (struct temp_name_list *) &newp->q;
- else
- insque (newp, temp_name_list);
- }
- else
- free (newp);
-}
-
-/* Delete all temporary files. */
-static void
-delete_temp_files (void)
-{
- while (temp_name_list != NULL)
- {
- remove (temp_name_list->name);
- free (temp_name_list->name);
-
- struct temp_name_list *next
- = (struct temp_name_list *) temp_name_list->q.q_forw;
- free (temp_name_list);
- temp_name_list = next;
- }
-}
-
-/* Create a temporary file. Return the opened file descriptor on
- success, or -1 on failure. Write the file name to *FILENAME if
- FILENAME is not NULL. In this case, the caller is expected to free
- *FILENAME. */
-static int
-__attribute__ ((unused))
-create_temp_file (const char *base, char **filename)
-{
- char *fname;
- int _fd;
-
- fname = (char *) malloc (strlen (test_dir) + 1 + strlen (base)
- + sizeof ("XXXXXX"));
- if (fname == NULL)
- {
- puts ("out of memory");
- return -1;
- }
- strcpy (stpcpy (stpcpy (stpcpy (fname, test_dir), "/"), base), "XXXXXX");
-
- _fd = mkstemp (fname);
- if (_fd == -1)
- {
- printf ("cannot open temporary file '%s': %s\n", fname, strerror(errno));
- free (fname);
- return -1;
- }
-
- add_temp_file (fname);
- if (filename != NULL)
- *filename = fname;
- else
- free (fname);
-
- return _fd;
-}
-
-/* Timeout handler. We kill the child and exit with an error. */
-static void
-__attribute__ ((noreturn))
-signal_handler (int sig __attribute__ ((unused)))
-{
- int killed = 0;
- int status;
- int i;
-
- assert (pid > 1);
- /* Kill the whole process group. */
- kill (-pid, SIGKILL);
- /* In case setpgid failed in the child, kill it individually too. */
- kill (pid, SIGKILL);
-
- /* Wait for it to terminate. */
- for (i = 0; i < 5; ++i)
- {
-#ifdef __UCLIBC_HAS_REALTIME__
- struct timespec ts;
-#endif
- killed = waitpid (pid, &status, WNOHANG|WUNTRACED);
- if (killed != 0)
- break;
-
- /* Delay, give the system time to process the kill. If the
- nanosleep() call return prematurely, all the better. We
- won't restart it since this probably means the child process
- finally died. */
-#ifdef __UCLIBC_HAS_REALTIME__
- ts.tv_sec = 0;
- ts.tv_nsec = 100000000;
- nanosleep (&ts, NULL);
-#else
- /* No nanosleep, just sleep 1s instead of 0.1s */
- sleep(1);
-#endif
- }
- if (killed != 0 && killed != pid)
- {
- perror ("Failed to kill test process");
- exit (1);
- }
-
-#ifdef CLEANUP_HANDLER
- CLEANUP_HANDLER;
-#endif
-
- if (sig == SIGINT)
- {
- signal (sig, SIG_DFL);
- raise (sig);
- }
-
- /* If we expected this signal: good! */
-#ifdef EXPECTED_SIGNAL
- if (EXPECTED_SIGNAL == SIGALRM)
- exit (0);
-#endif
-
- if (killed == 0 || (WIFSIGNALED (status) && WTERMSIG (status) == SIGKILL))
- fputs ("Timed out: killed the child process\n", stderr);
- else if (WIFSTOPPED (status))
- fprintf (stderr, "Timed out: the child process was %s\n",
- strsignal (WSTOPSIG (status)));
- else if (WIFSIGNALED (status))
- fprintf (stderr, "Timed out: the child process got signal %s\n",
- strsignal (WTERMSIG (status)));
- else
- fprintf (stderr, "Timed out: killed the child process but it exited %d\n",
- WEXITSTATUS (status));
-
- /* Exit with an error. */
- exit (1);
-}
-
-#ifdef __XXX_HANDLE_CTRL_C
-static void
-__attribute__ ((noreturn))
-handler_killpid(int sig)
-{
- kill(pid, SIGKILL); /* kill test */
- signal(sig, SIG_DFL);
- raise(sig); /* kill ourself */
- _exit(128 + sig); /* paranoia */
-}
-#endif
-
-/* We provide the entry point here. */
-int
-main (int argc, char *argv[])
-{
-#ifdef __ARCH_USE_MMU__
- int direct = 0; /* Directly call the test function? */
-#else
- int direct = 1;
-#endif
- int status;
- int opt;
- unsigned int timeoutfactor = 1;
- pid_t termpid;
- char *envstr_timeoutfactor;
-
- /* Make uses of freed and uninitialized memory known. */
-#ifdef __MALLOC_STANDARD__
-#ifndef M_PERTURB
-# define M_PERTURB -6
-#endif
- mallopt (M_PERTURB, 42);
-#endif
-
-#ifdef STDOUT_UNBUFFERED
- setbuf (stdout, NULL);
-#endif
-
-# ifndef CMDLINE_OPTIONS
-# define CMDLINE_OPTIONS ""
-# endif
- while ((opt = getopt (argc, argv, "+dt:" CMDLINE_OPTIONS)) >= 0)
- switch (opt)
- {
- case '?':
- exit (1);
- case 'd':
- direct = 1;
- break;
- case 't':
- test_dir = optarg;
- break;
-#ifdef CMDLINE_PROCESS
- CMDLINE_PROCESS
-#endif
- }
-
- /* If set, read the test TIMEOUTFACTOR value from the environment.
- This value is used to scale the default test timeout values. */
- envstr_timeoutfactor = getenv ("TIMEOUTFACTOR");
- if (envstr_timeoutfactor != NULL)
- {
- char *envstr_conv = envstr_timeoutfactor;
- unsigned long int env_fact;
-
- env_fact = strtoul (envstr_timeoutfactor, &envstr_conv, 0);
- if (*envstr_conv == '\0' && envstr_conv != envstr_timeoutfactor)
- timeoutfactor = MAX (env_fact, 1);
- }
-
- /* 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] = argv[0];
- 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. */
-
-#if defined __ARCH_USE_MMU__ || ! defined __UCLIBC__
- 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
-
- /* We put the test process in its own pgrp so that if it bogusly
- generates any job control signals, they won't hit the whole build. */
- if (setpgid (0, 0) != 0)
- printf ("Failed to set the process group ID: %m\n");
-
- /* Execute the test function and exit with the return value. */
- exit (TEST_FUNCTION);
- }
- else if (pid < 0)
-#endif
- {
- perror ("Cannot fork test program");
- exit (1);
- }
-
-#ifdef __XXX_HANDLE_CTRL_C
- signal (SIGTERM, handler_killpid);
- signal (SIGINT, handler_killpid);
- signal (SIGQUIT, handler_killpid);
-#endif
-
- /* Set timeout. */
-#ifndef TIMEOUT
- /* Default timeout is two seconds. */
-# define TIMEOUT 2
-#endif
- signal (SIGALRM, signal_handler);
- alarm (TIMEOUT * timeoutfactor);
-
- /* Make sure we clean up if the wrapper gets interrupted. */
- signal (SIGINT, signal_handler);
-
- /* Wait for the regular termination. */
- termpid = TEMP_FAILURE_RETRY (waitpid (pid, &status, 0));
- if (termpid == -1)
- {
- printf ("Waiting for test program failed: %s\n", strerror(errno));
- exit (1);
- }
- if (termpid != pid)
- {
- printf ("Oops, wrong test program terminated: expected %ld, got %ld\n",
- (long int) pid, (long int) termpid);
- 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)
- {
- if (WTERMSIG (status) == 0)
- fprintf (stderr,
- "Expected signal '%s' from child, got none\n",
- strsignal (EXPECTED_SIGNAL));
- else
- 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. */
-#ifndef EXPECTED_STATUS
- return WEXITSTATUS (status);
-#else
- if (WEXITSTATUS (status) != EXPECTED_STATUS)
- {
- fprintf (stderr, "Expected status %d, got %d\n",
- EXPECTED_STATUS, WEXITSTATUS (status));
- exit (1);
- }
-
- return 0;
-#endif
-}
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