318 lines
8.4 KiB
C
318 lines
8.4 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms of version 2 of the GNU General Public License as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it would be useful, but
|
||
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||
|
|
*
|
||
|
|
* Further, this software is distributed without any warranty that it is
|
||
|
|
* free of the rightful claim of any third person regarding infringement
|
||
|
|
* or the like. Any license provided herein, whether implied or
|
||
|
|
* otherwise, applies only to this software file. Patent licenses, if
|
||
|
|
* any, provided herein do not apply to combinations of this program with
|
||
|
|
* other software, or any other product whatsoever.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License along
|
||
|
|
* with this program; if not, write the Free Software Foundation, Inc., 59
|
||
|
|
* Temple Place - Suite 330, Boston MA 02111-1307, USA.
|
||
|
|
*
|
||
|
|
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
|
||
|
|
* Mountain View, CA 94043, or:
|
||
|
|
*
|
||
|
|
* http://www.sgi.com
|
||
|
|
*
|
||
|
|
* For further information regarding this notice, see:
|
||
|
|
*
|
||
|
|
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
/* $Id$ */
|
||
|
|
/**********************************************************
|
||
|
|
*
|
||
|
|
* OS Test - Silicon Graphics, Inc.
|
||
|
|
*
|
||
|
|
* TEST IDENTIFIER : fork01
|
||
|
|
*
|
||
|
|
* EXECUTED BY : anyone
|
||
|
|
*
|
||
|
|
* TEST TITLE : Basic test for fork(2)
|
||
|
|
*
|
||
|
|
* PARENT DOCUMENT : frktds02
|
||
|
|
*
|
||
|
|
* TEST CASE TOTAL : 2
|
||
|
|
*
|
||
|
|
* WALL CLOCK TIME : 1
|
||
|
|
*
|
||
|
|
* CPU TYPES : ALL
|
||
|
|
*
|
||
|
|
* AUTHOR : Kathy Olmsted
|
||
|
|
*
|
||
|
|
* CO-PILOT : Steve Shaw
|
||
|
|
*
|
||
|
|
* DATE STARTED : 06/17/92
|
||
|
|
*
|
||
|
|
* INITIAL RELEASE : UNICOS 7.0
|
||
|
|
*
|
||
|
|
* TEST CASES
|
||
|
|
*
|
||
|
|
* 1.) fork returns without error
|
||
|
|
* 2.) fork returns the pid of the child
|
||
|
|
*
|
||
|
|
* INPUT SPECIFICATIONS
|
||
|
|
* The standard options for system call tests are accepted.
|
||
|
|
* (See the parse_opts(3) man page).
|
||
|
|
*
|
||
|
|
* OUTPUT SPECIFICATIONS
|
||
|
|
*
|
||
|
|
* DURATION
|
||
|
|
* Terminates - with frequency and infinite modes.
|
||
|
|
*
|
||
|
|
* SIGNALS
|
||
|
|
* Uses SIGUSR1 to pause before test if option set.
|
||
|
|
* (See the parse_opts(3) man page).
|
||
|
|
*
|
||
|
|
* RESOURCES
|
||
|
|
* None
|
||
|
|
*
|
||
|
|
* ENVIRONMENTAL NEEDS
|
||
|
|
* No run-time environmental needs.
|
||
|
|
*
|
||
|
|
* SPECIAL PROCEDURAL REQUIREMENTS
|
||
|
|
* None
|
||
|
|
*
|
||
|
|
* INTERCASE DEPENDENCIES
|
||
|
|
* None
|
||
|
|
*
|
||
|
|
* DETAILED DESCRIPTION
|
||
|
|
*
|
||
|
|
* Setup:
|
||
|
|
* Setup signal handling.
|
||
|
|
* Pause for SIGUSR1 if option specified.
|
||
|
|
*
|
||
|
|
* Test:
|
||
|
|
* Loop if the proper options are given.
|
||
|
|
* fork()
|
||
|
|
* Check return code, if system call failed (return=-1)
|
||
|
|
* Log the errno and Issue a FAIL message.
|
||
|
|
* Otherwise, Issue a PASS message.
|
||
|
|
* CHILD:
|
||
|
|
* determine PID
|
||
|
|
* write to PID to a file and close the file
|
||
|
|
* exit
|
||
|
|
* PARENT:
|
||
|
|
* wait for child to exit
|
||
|
|
* read child PID from file
|
||
|
|
* compare child PID to fork() return code and report
|
||
|
|
* results
|
||
|
|
*
|
||
|
|
* Cleanup:
|
||
|
|
* Print errno log and/or timing stats if options given
|
||
|
|
*
|
||
|
|
*
|
||
|
|
*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#**/
|
||
|
|
|
||
|
|
#include <errno.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <signal.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <sys/wait.h>
|
||
|
|
#include "test.h"
|
||
|
|
#include "usctest.h"
|
||
|
|
|
||
|
|
#define KIDEXIT 42
|
||
|
|
extern void setup();
|
||
|
|
extern void cleanup();
|
||
|
|
|
||
|
|
#define LINE_SZ 20 /* size of the line written/read to the file */
|
||
|
|
#define FILENAME "childpid"
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
char *TCID="fork01"; /* Test program identifier. */
|
||
|
|
int TST_TOTAL=2; /* Total number of test cases. */
|
||
|
|
extern int Tst_count; /* Test Case counter for tst_* routines */
|
||
|
|
|
||
|
|
/***************************************************************
|
||
|
|
* child_pid - the child side of the test
|
||
|
|
* determine the PID and write to a file
|
||
|
|
***************************************************************/
|
||
|
|
void child_pid()
|
||
|
|
{
|
||
|
|
|
||
|
|
int fildes;
|
||
|
|
char tmp_line[LINE_SZ];
|
||
|
|
|
||
|
|
fildes = creat(FILENAME,0700);
|
||
|
|
sprintf(tmp_line,"%d\n",getpid());
|
||
|
|
write(fildes,tmp_line,LINE_SZ);
|
||
|
|
close(fildes);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/***************************************************************
|
||
|
|
* parent_pid - the parent side of the test
|
||
|
|
* read the value determined by the child
|
||
|
|
* compare and report results
|
||
|
|
***************************************************************/
|
||
|
|
void parent_pid()
|
||
|
|
{
|
||
|
|
|
||
|
|
int fildes;
|
||
|
|
char tmp_line[LINE_SZ];
|
||
|
|
pid_t child_id;
|
||
|
|
|
||
|
|
if ((fildes = open(FILENAME,O_RDWR)) == -1) {
|
||
|
|
tst_brkm(TBROK, cleanup,
|
||
|
|
"parent open failed. errno: %d (%s)\n",
|
||
|
|
errno, strerror(errno));
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if (read(fildes,tmp_line,LINE_SZ) == 0) {
|
||
|
|
tst_brkm(TBROK,cleanup, "fork(): parent failed to read PID from file errno: %d (%s)",
|
||
|
|
errno, strerror(errno));
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
child_id = atoi(tmp_line);
|
||
|
|
if (TEST_RETURN != child_id) {
|
||
|
|
tst_resm(TFAIL,"child reported a pid of %d. parent received %d from fork()",
|
||
|
|
child_id,TEST_RETURN);
|
||
|
|
} else {
|
||
|
|
tst_resm(TPASS,"child pid and fork() return agree: %d",child_id);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
close(fildes);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/***************************************************************
|
||
|
|
* main() - performs tests
|
||
|
|
*
|
||
|
|
***************************************************************/
|
||
|
|
|
||
|
|
int
|
||
|
|
main(int ac, char **av)
|
||
|
|
{
|
||
|
|
int lc; /* loop counter */
|
||
|
|
char *msg; /* message returned from parse_opts */
|
||
|
|
int fails;
|
||
|
|
int kid_status, wait_status;
|
||
|
|
|
||
|
|
/***************************************************************
|
||
|
|
* parse standard options
|
||
|
|
***************************************************************/
|
||
|
|
if ( (msg=parse_opts(ac, av, (option_t *) NULL, NULL)) != (char *) NULL )
|
||
|
|
tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg);
|
||
|
|
|
||
|
|
/***************************************************************
|
||
|
|
* perform global setup for test
|
||
|
|
***************************************************************/
|
||
|
|
setup();
|
||
|
|
|
||
|
|
/* set the expected errnos... */
|
||
|
|
/***************************************************************
|
||
|
|
* check looping state if -c option given
|
||
|
|
***************************************************************/
|
||
|
|
for (lc=0; TEST_LOOPING(lc); lc++) {
|
||
|
|
|
||
|
|
/* reset Tst_count in case we are looping. */
|
||
|
|
Tst_count=0;
|
||
|
|
fails = 0;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Call fork(2)
|
||
|
|
*/
|
||
|
|
TEST(fork());
|
||
|
|
|
||
|
|
/* check return code */
|
||
|
|
if ( TEST_RETURN == -1 ) {
|
||
|
|
TEST_ERROR_LOG(TEST_ERRNO);
|
||
|
|
if ( STD_FUNCTIONAL_TEST ) {
|
||
|
|
tst_resm(TFAIL, "fork() Failed, errno=%d : %s",
|
||
|
|
TEST_ERRNO, strerror(TEST_ERRNO));
|
||
|
|
tst_resm(TBROK,"unable to continue");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (TEST_RETURN == 0) {
|
||
|
|
/* child */
|
||
|
|
if ( STD_FUNCTIONAL_TEST ) {
|
||
|
|
child_pid();
|
||
|
|
}
|
||
|
|
exit(KIDEXIT);
|
||
|
|
} else {
|
||
|
|
/* parent */
|
||
|
|
if ( STD_FUNCTIONAL_TEST ) {
|
||
|
|
tst_resm(TPASS, "fork() returned %d", TEST_RETURN);
|
||
|
|
}
|
||
|
|
/* wait for the child to complete */
|
||
|
|
wait_status = wait(&kid_status);
|
||
|
|
if ( STD_FUNCTIONAL_TEST ) {
|
||
|
|
if (wait_status == TEST_RETURN) {
|
||
|
|
if (kid_status != KIDEXIT << 8) {
|
||
|
|
tst_resm(TBROK,
|
||
|
|
"incorrect child status returned on wait(): %d",
|
||
|
|
kid_status);
|
||
|
|
fails++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
tst_resm(TBROK,
|
||
|
|
"wait() for child status failed with %d errno: %d : %s",
|
||
|
|
wait_status,errno,strerror(errno));
|
||
|
|
fails++;
|
||
|
|
}
|
||
|
|
if (fails == 0 ) {
|
||
|
|
/* verification tests */
|
||
|
|
parent_pid();
|
||
|
|
}
|
||
|
|
} /* STD_FUNCTIONAL_TEST */
|
||
|
|
} /* TEST_RETURN */
|
||
|
|
} /* End for TEST_LOOPING */
|
||
|
|
|
||
|
|
/***************************************************************
|
||
|
|
* cleanup and exit
|
||
|
|
***************************************************************/
|
||
|
|
cleanup();
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
} /* End main */
|
||
|
|
|
||
|
|
/***************************************************************
|
||
|
|
* setup() - performs all ONE TIME setup for this test.
|
||
|
|
***************************************************************/
|
||
|
|
void
|
||
|
|
setup()
|
||
|
|
{
|
||
|
|
/* capture signals */
|
||
|
|
tst_sig(FORK, DEF_HANDLER, cleanup);
|
||
|
|
|
||
|
|
tst_tmpdir();
|
||
|
|
|
||
|
|
/* Pause if that option was specified */
|
||
|
|
TEST_PAUSE;
|
||
|
|
} /* End setup() */
|
||
|
|
|
||
|
|
|
||
|
|
/***************************************************************
|
||
|
|
* 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_rmdir();
|
||
|
|
tst_exit();
|
||
|
|
} /* End cleanup() */
|