mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-25 22:40:05 +00:00
32043daaaf
With fortification enabled, ftruncate calls return result needs to be checked, has it gets the __wur macro enabled. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
286 lines
8.3 KiB
C
286 lines
8.3 KiB
C
/* Copyright (C) 2017-2023 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
/* fprintf is a cancellation point, but getopt is not supposed to be a
|
|
cancellation point, even when it prints error messages. */
|
|
|
|
/* Note: getopt.h must be included first in this file, so we get the
|
|
GNU getopt rather than the POSIX one. */
|
|
#include <getopt.h>
|
|
|
|
#include <stdbool.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#include <fcntl.h>
|
|
#include <pthread.h>
|
|
#include <unistd.h>
|
|
|
|
#include <support/support.h>
|
|
#include <support/temp_file.h>
|
|
#include <support/xthread.h>
|
|
#include <support/xunistd.h>
|
|
|
|
static bool
|
|
check_stderr (bool expect_errmsg, FILE *stderr_trapped)
|
|
{
|
|
static char *lineptr = 0;
|
|
static size_t linesz = 0;
|
|
|
|
bool got_errmsg = false;
|
|
rewind (stderr_trapped);
|
|
while (getline (&lineptr, &linesz, stderr_trapped) > 0)
|
|
{
|
|
got_errmsg = true;
|
|
fputs (lineptr, stdout);
|
|
}
|
|
rewind (stderr_trapped);
|
|
xftruncate (fileno (stderr_trapped), 0);
|
|
return got_errmsg == expect_errmsg;
|
|
}
|
|
|
|
struct test_short
|
|
{
|
|
const char *label;
|
|
const char *opts;
|
|
const char *const argv[8];
|
|
int argc;
|
|
bool expect_errmsg;
|
|
};
|
|
|
|
struct test_long
|
|
{
|
|
const char *label;
|
|
const char *opts;
|
|
const struct option longopts[4];
|
|
const char *const argv[8];
|
|
int argc;
|
|
bool expect_errmsg;
|
|
};
|
|
|
|
#define DEFINE_TEST_DRIVER(test_type, getopt_call) \
|
|
struct test_type##_tdata \
|
|
{ \
|
|
pthread_mutex_t *sync; \
|
|
const struct test_type *tcase; \
|
|
bool ok; \
|
|
}; \
|
|
\
|
|
static void * \
|
|
test_type##_threadproc (void *data) \
|
|
{ \
|
|
struct test_type##_tdata *tdata = data; \
|
|
const struct test_type *tc = tdata->tcase; \
|
|
\
|
|
xpthread_mutex_lock (tdata->sync); \
|
|
xpthread_mutex_unlock (tdata->sync); \
|
|
\
|
|
/* At this point, this thread has a cancellation pending. \
|
|
We should still be able to get all the way through a getopt \
|
|
loop without being cancelled. \
|
|
Setting optind to 0 forces getopt to reinitialize itself. */ \
|
|
optind = 0; \
|
|
opterr = 1; \
|
|
optopt = 0; \
|
|
while (getopt_call != -1) \
|
|
; \
|
|
tdata->ok = true; \
|
|
\
|
|
pthread_testcancel(); \
|
|
return 0; \
|
|
} \
|
|
\
|
|
static bool \
|
|
do_##test_type (const struct test_type *tcase, FILE *stderr_trapped) \
|
|
{ \
|
|
pthread_mutex_t sync; \
|
|
struct test_type##_tdata tdata; \
|
|
\
|
|
printf("begin: %s\n", tcase->label); \
|
|
\
|
|
xpthread_mutex_init (&sync, 0); \
|
|
xpthread_mutex_lock (&sync); \
|
|
\
|
|
tdata.sync = &sync; \
|
|
tdata.tcase = tcase; \
|
|
tdata.ok = false; \
|
|
\
|
|
pthread_t thr = xpthread_create (0, test_type##_threadproc, \
|
|
(void *)&tdata); \
|
|
xpthread_cancel (thr); \
|
|
xpthread_mutex_unlock (&sync); \
|
|
void *rv = xpthread_join (thr); \
|
|
\
|
|
xpthread_mutex_destroy (&sync); \
|
|
\
|
|
bool ok = true; \
|
|
if (!check_stderr (tcase->expect_errmsg, stderr_trapped)) \
|
|
{ \
|
|
ok = false; \
|
|
printf("FAIL: %s: stderr not as expected\n", tcase->label); \
|
|
} \
|
|
if (!tdata.ok) \
|
|
{ \
|
|
ok = false; \
|
|
printf("FAIL: %s: did not complete loop\n", tcase->label); \
|
|
} \
|
|
if (rv != PTHREAD_CANCELED) \
|
|
{ \
|
|
ok = false; \
|
|
printf("FAIL: %s: thread was not cancelled\n", tcase->label); \
|
|
} \
|
|
if (ok) \
|
|
printf ("pass: %s\n", tcase->label); \
|
|
return ok; \
|
|
}
|
|
|
|
DEFINE_TEST_DRIVER (test_short,
|
|
getopt (tc->argc, (char *const *)tc->argv, tc->opts))
|
|
DEFINE_TEST_DRIVER (test_long,
|
|
getopt_long (tc->argc, (char *const *)tc->argv,
|
|
tc->opts, tc->longopts, 0))
|
|
|
|
/* Caution: all option strings must begin with a '+' or '-' so that
|
|
getopt does not attempt to permute the argument vector (which is in
|
|
read-only memory). */
|
|
const struct test_short tests_short[] = {
|
|
{ "no errors",
|
|
"+ab:c", { "program", "-ac", "-b", "x", 0 }, 4, false },
|
|
{ "invalid option",
|
|
"+ab:c", { "program", "-d", 0 }, 2, true },
|
|
{ "missing argument",
|
|
"+ab:c", { "program", "-b", 0 }, 2, true },
|
|
{ 0 }
|
|
};
|
|
|
|
const struct test_long tests_long[] = {
|
|
{ "no errors (long)",
|
|
"+ab:c", { { "alpha", no_argument, 0, 'a' },
|
|
{ "bravo", required_argument, 0, 'b' },
|
|
{ "charlie", no_argument, 0, 'c' },
|
|
{ 0 } },
|
|
{ "program", "-a", "--charlie", "--bravo=x", 0 }, 4, false },
|
|
|
|
{ "invalid option (long)",
|
|
"+ab:c", { { "alpha", no_argument, 0, 'a' },
|
|
{ "bravo", required_argument, 0, 'b' },
|
|
{ "charlie", no_argument, 0, 'c' },
|
|
{ 0 } },
|
|
{ "program", "-a", "--charlie", "--dingo", 0 }, 4, true },
|
|
|
|
{ "unwanted argument",
|
|
"+ab:c", { { "alpha", no_argument, 0, 'a' },
|
|
{ "bravo", required_argument, 0, 'b' },
|
|
{ "charlie", no_argument, 0, 'c' },
|
|
{ 0 } },
|
|
{ "program", "-a", "--charlie=dingo", "--bravo=x", 0 }, 4, true },
|
|
|
|
{ "missing argument",
|
|
"+ab:c", { { "alpha", no_argument, 0, 'a' },
|
|
{ "bravo", required_argument, 0, 'b' },
|
|
{ "charlie", no_argument, 0, 'c' },
|
|
{ 0 } },
|
|
{ "program", "-a", "--charlie", "--bravo", 0 }, 4, true },
|
|
|
|
{ "ambiguous options",
|
|
"+uvw", { { "veni", no_argument, 0, 'u' },
|
|
{ "vedi", no_argument, 0, 'v' },
|
|
{ "veci", no_argument, 0, 'w' } },
|
|
{ "program", "--ve", 0 }, 2, true },
|
|
|
|
{ "no errors (long W)",
|
|
"+ab:cW;", { { "alpha", no_argument, 0, 'a' },
|
|
{ "bravo", required_argument, 0, 'b' },
|
|
{ "charlie", no_argument, 0, 'c' },
|
|
{ 0 } },
|
|
{ "program", "-a", "-W", "charlie", "-W", "bravo=x", 0 }, 6, false },
|
|
|
|
{ "missing argument (W itself)",
|
|
"+ab:cW;", { { "alpha", no_argument, 0, 'a' },
|
|
{ "bravo", required_argument, 0, 'b' },
|
|
{ "charlie", no_argument, 0, 'c' },
|
|
{ 0 } },
|
|
{ "program", "-a", "-W", "charlie", "-W", 0 }, 5, true },
|
|
|
|
{ "missing argument (W longopt)",
|
|
"+ab:cW;", { { "alpha", no_argument, 0, 'a' },
|
|
{ "bravo", required_argument, 0, 'b' },
|
|
{ "charlie", no_argument, 0, 'c' },
|
|
{ 0 } },
|
|
{ "program", "-a", "-W", "charlie", "-W", "bravo", 0 }, 6, true },
|
|
|
|
{ "unwanted argument (W longopt)",
|
|
"+ab:cW;", { { "alpha", no_argument, 0, 'a' },
|
|
{ "bravo", required_argument, 0, 'b' },
|
|
{ "charlie", no_argument, 0, 'c' },
|
|
{ 0 } },
|
|
{ "program", "-a", "-W", "charlie=dingo", "-W", "bravo=x", 0 }, 6, true },
|
|
|
|
{ "ambiguous options (W)",
|
|
"+uvwW;", { { "veni", no_argument, 0, 'u' },
|
|
{ "vedi", no_argument, 0, 'v' },
|
|
{ "veci", no_argument, 0, 'w' } },
|
|
{ "program", "-W", "ve", 0 }, 3, true },
|
|
|
|
{ 0 }
|
|
};
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
int stderr_trap = create_temp_file ("stderr", 0);
|
|
if (stderr_trap < 0)
|
|
{
|
|
perror ("create_temp_file");
|
|
return 1;
|
|
}
|
|
FILE *stderr_trapped = fdopen(stderr_trap, "r+");
|
|
if (!stderr_trapped)
|
|
{
|
|
perror ("fdopen");
|
|
return 1;
|
|
}
|
|
int old_stderr = dup (fileno (stderr));
|
|
if (old_stderr < 0)
|
|
{
|
|
perror ("dup");
|
|
return 1;
|
|
}
|
|
if (dup2 (stderr_trap, 2) < 0)
|
|
{
|
|
perror ("dup2");
|
|
return 1;
|
|
}
|
|
rewind (stderr);
|
|
|
|
bool success = true;
|
|
|
|
for (const struct test_short *tcase = tests_short; tcase->label; tcase++)
|
|
success = do_test_short (tcase, stderr_trapped) && success;
|
|
|
|
for (const struct test_long *tcase = tests_long; tcase->label; tcase++)
|
|
success = do_test_long (tcase, stderr_trapped) && success;
|
|
|
|
dup2 (old_stderr, 2);
|
|
close (old_stderr);
|
|
fclose (stderr_trapped);
|
|
|
|
return success ? 0 : 1;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|