newlib-cygwin/winsup/testsuite/winsup.api/ltp/ftruncate03.c

326 lines
8.6 KiB
C

/*
*
* Copyright (c) International Business Machines Corp., 2001
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Test Name: ftruncate03
*
* Test Description:
* Verify that,
* 1) ftruncate(2) returns -1 and sets errno to EINVAL if the specified
* truncate length is less than 0.
* 2) ftruncate(2) returns -1 and sets errno to EBADF if the file descriptor
* of the specified file is not valid.
*
* Expected Result:
* ftruncate() should fail with return value -1 and set expected errno.
*
* Algorithm:
* Setup:
* Setup signal handling.
* Create temporary directory.
* Pause for SIGUSR1 if option specified.
*
* Test:
* Loop if the proper options are given.
* Execute system call
* Check return code, if system call failed (return=-1)
* if errno set == expected errno
* Issue sys call fails with expected return value and errno.
* Otherwise,
* Issue sys call fails with unexpected errno.
* Otherwise,
* Issue sys call returns unexpected value.
*
* Cleanup:
* Print errno log and/or timing stats if options given
* Delete the temporary directory(s)/file(s) created.
*
* Usage: <for command-line>
* ftruncate03 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
* where, -c n : Run n copies concurrently.
* -e : Turn on errno logging.
* -i n : Execute test n times.
* -I x : Execute test for x seconds.
* -P x : Pause for x seconds between iterations.
* -t : Turn on syscall timing.
*
* HISTORY
* 07/2001 Ported by Wayne Boyer
*
* RESTRICTIONS:
* This test should be executed by 'non-super-user' only.
*/
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/fcntl.h>
#include <errno.h>
#include <string.h>
#include <signal.h>
#include "test.h"
#include "usctest.h"
#define TEST_FILE1 "test_file1" /* file under test */
#define TEST_FILE2 "test_file2" /* file under test */
#define FILE_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
#define BUF_SIZE 256 /* buffer size */
#define FILE_SIZE 1024 /* test file size */
int no_setup();
int setup1(); /* setup function to test chmod for EBADF */
int setup2(); /* setup function to test chmod for EINVAL */
int fd1; /* File descriptor for testfile1 */
int fd2; /* File descriptor for testfile2 */
struct test_case_t { /* test case struct. to hold ref. test cond's*/
int fd;
char *desc;
int exp_errno;
int len;
int (*setupfunc)();
} Test_cases[] = {
{ 1, "Length argument is -ve", EINVAL, -1, setup1 },
{ 2, "File descriptor is not valid", EBADF, 256, setup2 },
{ 0, NULL, 0, 0, no_setup }
};
char *TCID="ftruncate03"; /* Test program identifier. */
int TST_TOTAL=2; /* Total number of test conditions */
extern int Tst_count; /* Test Case counter for tst_* routines */
int exp_enos[]={EINVAL, EBADF, 0};
void setup(); /* Main setup function for the test */
void cleanup(); /* Main cleanup function for the test */
int
main(int ac, char **av)
{
int lc; /* loop counter */
const char *msg; /* message returned from parse_opts */
char *test_desc; /* test specific error message */
int fildes; /* File descriptor of testfile */
off_t trunc_len; /* truncate length */
int ind;
/* Parse standard options given to run the test. */
msg = parse_opts(ac, av, (option_t *) NULL, NULL);
if (msg != (char *) NULL) {
tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
tst_exit();
}
/*
* Perform global setup for test to call individual test specific
* setup functions.
*/
setup();
/* set the expected errnos... */
TEST_EXP_ENOS(exp_enos);
/* Check looping state if -i option given */
for (lc = 0; TEST_LOOPING(lc); lc++) {
/* Reset Tst_count in case we are looping. */
Tst_count = 0;
for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
fildes = Test_cases[ind].fd;
test_desc = Test_cases[ind].desc;
trunc_len = Test_cases[ind].len;
if (fildes == 1) {
fildes = fd1;
} else {
fildes = fd2;
}
/*
* Call ftruncate(2) to test different test conditions.
* verify that it fails with return code -1 and sets
* appropriate errno.
*/
TEST(ftruncate(fildes, trunc_len));
/* check return code of ftruncate(2) */
if (TEST_RETURN == -1) {
TEST_ERROR_LOG(TEST_ERRNO);
if (TEST_ERRNO == Test_cases[ind].exp_errno) {
tst_resm(TPASS, "ftruncate() fails, %s,"
" errno=%d", test_desc,
TEST_ERRNO);
} else {
tst_resm(TFAIL, "ftruncate() fails, %s,"
" errno=%d, expected errno:%d",
test_desc, TEST_ERRNO,
Test_cases[ind].exp_errno);
}
} else {
tst_resm(TFAIL, "ftruncate() returned %d, "
"expected -1, errno:%d", TEST_RETURN,
Test_cases[ind].exp_errno);
}
} /* End of TEST CASE LOOPING. */
} /* End for TEST_LOOPING */
/* Call cleanup() to undo setup done for the test. */
cleanup();
/*NOTREACHED*/
} /* End main */
/*
* void
* setup() - performs all ONE TIME setup for this test.
* Create a temporary directory and change directory to it.
* Fill the test buffer with some date used to fill test file(s).
* Call individual test specific setup functions.
*/
void
setup()
{
int ind;
/* capture signals */
tst_sig(NOFORK, DEF_HANDLER, cleanup);
/* Check that the test process id is not root/super-user */
if (geteuid() == 0) {
tst_brkm(TBROK, NULL, "Must be non-root/super for this test!");
tst_exit();
}
/* Pause if that option was specified */
TEST_PAUSE;
/* make a temp directory and cd to it */
tst_tmpdir();
/* call individual setup functions */
for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
Test_cases[ind].setupfunc();
}
} /* End of setup */
/*
* int
* setup1() - setup function for a test condition for which ftruncate(2)
* returns -1 and sets errno to EINVAL.
* Create a test file and open it for writing only.
*/
int
setup1()
{
/* Open the testfile in write-only mode */
if ((fd1 = open(TEST_FILE1, O_WRONLY|O_CREAT, 0644)) == -1) {
tst_brkm(TBROK, cleanup,
"open(%s, O_WRONLY) Failed, errno=%d : %s",
TEST_FILE1, errno, strerror(errno));
}
return 0;
} /* End setup1() */
/*
* int
* setup2() - setup function for a test condition for which ftruncate(2)
* returns -1 and sets errno to EBADF.
* Create a test file and open it for reading/writing, and fill the
* testfile with the contents of test buffer.
* Close the test file.
*
*/
int
setup2()
{
int c, i, c_total = 0;
char tst_buff[BUF_SIZE]; /* buffer to hold testfile contents */
/* Fill the test buffer with the known data */
for (i = 0; i < BUF_SIZE; i++) {
tst_buff[i] = 'a';
}
/* open a testfile for reading/writing */
if ((fd2 = open(TEST_FILE2, O_RDWR|O_CREAT, FILE_MODE)) == -1) {
tst_brkm(TBROK, cleanup,
"open(%s, O_RDWR|O_CREAT, %o) Failed, errno=%d : %s",
TEST_FILE2, FILE_MODE, errno, strerror(errno));
}
/* Write to the file 1k data from the buffer */
while (c_total < FILE_SIZE) {
if ((c = write(fd2, tst_buff, sizeof(tst_buff))) <= 0) {
tst_brkm(TBROK, cleanup,
"write(2) on %s Failed, errno=%d : %s",
TEST_FILE2, errno, strerror(errno));
} else {
c_total += c;
}
}
/* Close the testfile after writing data into it */
if (close(fd2) == -1) {
tst_brkm(TBROK, cleanup,
"close(%s) Failed, errno=%d : %s",
TEST_FILE2, errno, strerror(errno));
}
return 0;
} /* End of setup2 */
/*
* int
* no_setup() - This function just returns 0.
*/
int
no_setup()
{
return 0;
}
/*
* void
* cleanup() - performs all ONE TIME cleanup for this test at
* completion or premature exit.
* Close the temporary file.
* Remove the test directory and testfile created in the setup.
*/
void
cleanup()
{
/*
* print timing stats if that option was specified.
*/
TEST_CLEANUP;
/* Close the testfile after opening it read-only in setup1 */
if (close(fd1) == -1) {
tst_brkm(TFAIL, NULL,
"close(%s) Failed, errno=%d : %s",
TEST_FILE1, errno, strerror(errno));
}
/* Remove tmp dir and all files in it */
tst_rmdir();
/* exit with return code appropriate for results */
tst_exit();
} /* End cleanup() */