diff options
Diffstat (limited to 'winsup/testsuite/winsup.api/ltp/pipe01.c')
| -rw-r--r-- | winsup/testsuite/winsup.api/ltp/pipe01.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/winsup/testsuite/winsup.api/ltp/pipe01.c b/winsup/testsuite/winsup.api/ltp/pipe01.c new file mode 100644 index 000000000..699515da3 --- /dev/null +++ b/winsup/testsuite/winsup.api/ltp/pipe01.c @@ -0,0 +1,157 @@ +/* + * + * 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 + */ + +/* + * NAME + * pipe01.c + * + * DESCRIPTION + * Testcase to check the basic functionality of the pipe(2) syscall: + * Check that both ends of the pipe (both file descriptors) are + * available to a process opening the pipe. + * + * ALGORITHM + * Write a string of characters down a pipe; read the string from the + * other file descriptor. Test passes if both can be done, as reported + * by the number of characters written and read. + * + * USAGE: <for command-line> + * pipe01 [-c n] [-f] [-i n] [-I x] [-P x] [-t] + * where, -c n : Run n copies concurrently. + * -f : Turn off functionality Testing. + * -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. + * + * RESTRICITONS + * NONE + */ +#include <unistd.h> +#include <errno.h> +#include "test.h" +#include "usctest.h" + +char *TCID = "pipe01"; +int TST_TOTAL = 1; +extern int Tst_count; + +void setup(void); +void cleanup(void); + +main(int ac, char **av) +{ + int lc; /* loop counter */ + const char *msg; /* message returned from parse_opts */ + + int pipe_ret; /* exit status of pipe */ + int fildes[2]; /* fds for pipe read and write */ + char wrbuf[BUFSIZ], rebuf[BUFSIZ]; + int red, written; /* no. of chars read/written to pipe */ + int greater, length; + char *strcpy(); + + /* parse standard options */ + if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){ + tst_brkm(TBROK, tst_exit, "OPTION PARSING ERROR - %s", msg); + /*NOTREACHED*/ + } + + setup(); + + for (lc = 0; TEST_LOOPING(lc); lc++) { + + /* reset Tst_count in case we are looping */ + Tst_count = 0; + + TEST(pipe(fildes)); + + if (TEST_RETURN == -1) { + tst_resm(TFAIL, "pipe() failed unexpectedly - errno %d", + TEST_ERRNO); + continue; + } + + if (STD_FUNCTIONAL_TEST) { + + strcpy(wrbuf, "abcdefghijklmnopqrstuvwxyz"); + length = strlen(wrbuf); + + if ((written = write(fildes[1], wrbuf, length)) == -1) { + tst_brkm(TBROK, cleanup, "write() failed"); + } + + if ((written < 0) || (written > 26)) { + tst_resm(TFAIL, "Condition #1 test failed"); + continue; + } + + if ((red = read(fildes[0], rebuf, written)) == -1) { + tst_brkm(TBROK, cleanup, "read() failed"); + } + + if ((red < 0) || (red > written)) { + tst_resm(TFAIL, "Condition #2 test failed"); + continue; + } + + /* are the strings written and read equal */ + if ((greater = memcmp(rebuf, wrbuf, red)) != 0) { + tst_resm(TFAIL, "Condition #3 test failed"); + continue; + } + tst_resm(TPASS, "pipe() functionality is correct"); + } else { + tst_resm(TPASS, "call succeeded"); + } + } + cleanup(); + + /*NOTREACHED*/ +} + +/* + * setup() - performs all ONE TIME setup for this test. + */ +void +setup() +{ + /* capture signals */ + tst_sig(NOFORK, DEF_HANDLER, cleanup); + + /* Pause if that option was specified */ + TEST_PAUSE; +} + +/* + * cleanup() - performs all ONE TIME cleanup for this test at + * completion or premature exit. + */ +void +cleanup() +{ + /* + * print timing stats if that option was specified. + * print errno log if that option was specified. + */ + TEST_CLEANUP; + + /* exit with return code appropriate for results */ + tst_exit(); +} |