/*
* 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 : dup03
*
* EXECUTED BY : anyone
*
* TEST TITLE : Negative test for dup(2) (too many fds)
*
* PARENT DOCUMENT : usctpl01
*
* TEST CASE TOTAL : 1
*
* WALL CLOCK TIME : 1
*
* CPU TYPES : ALL
*
* AUTHOR : Richard Logan
*
* CO-PILOT : William Roske
*
* DATE STARTED : 06/94
*
* INITIAL RELEASE : UNICOS 7.0
*
* TEST CASES
*
* 1.) dup(2) returns...(See Description)
*
* 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.
* Execute system call
* Check return code, if system call failed (return=-1)
* Log the errno and Issue a FAIL message.
* Otherwise, Issue a PASS message.
*
* Cleanup:
* Print errno log and/or timing stats if options given
*
*
*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#**/
#include <sys/types.h>
#include <sys/fcntl.h>
#include <errno.h>
#include <string.h>
#include <signal.h>
#include "test.h"
#include "usctest.h"
void setup();
void cleanup(void) __attribute__((noreturn));
const char *TCID="dup03"; /* Test program identifier. */
int TST_TOTAL=1; /* Total number of test cases. */
extern int Tst_count; /* Test Case counter for tst_* routines */
char Fname[255];
int *Fd = NULL;
int Nfds=0;
/***********************************************************************
* Main
***********************************************************************/
int
main(int ac, char **av)
{
int lc; /* loop counter */
const char *msg; /* message returned from parse_opts */
/***************************************************************
* parse standard options
***************************************************************/
if ( (msg=parse_opts(ac, av, (option_t *) NULL, NULL)) != (char *) NULL ) {
tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
tst_exit();
}
/***************************************************************
* perform global setup for test
***************************************************************/
setup();
/***************************************************************
* 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;
/*
* Call dup(2)
*/
TEST( dup(Fd[0]) );
/* check return code */
if ( TEST_RETURN == -1 ) {
if ( STD_FUNCTIONAL_TEST ) {
if ( TEST_ERRNO == EMFILE ) {
tst_resm(TPASS, "dup(%d) Failed, errno=%d : %s", Fd[0],
TEST_ERRNO, strerror(TEST_ERRNO));
}
else {
tst_resm(TFAIL, "dup(%d) Failed, errno=%d %s, expected %d (EMFILE)",
Fd[0], TEST_ERRNO, strerror(TEST_ERRNO), EMFILE);
}
}
} else {
tst_resm(TFAIL, "dup(%d) returned %d, expected -1, errno:%d (EMFILE)",
Fd[0], TEST_RETURN, EMFILE);
/* close the new file so loops do not open too many files */
if (close(TEST_RETURN) == -1) {
tst_brkm(TBROK, cleanup, "close(%s) Failed, errno=%d : %s",
Fname, errno, strerror(errno));
}
}
} /* End for TEST_LOOPING */
/***************************************************************
* cleanup and exit
***************************************************************/
cleanup();
return 0;
} /* End main */
/***************************************************************
* setup() - performs all ONE TIME setup for this test.
***************************************************************/
void
setup()
{
long maxfds;
/*
* Initialize Fd in case we get a quick signal
*/
maxfds = sysconf(_SC_OPEN_MAX);
if (maxfds < 1) {
tst_brkm(TBROK, cleanup,
"sysconf(_SC_OPEN_MAX) Failed, errno=%d : %s",
errno, strerror(errno));
}
Fd = (int *)malloc(maxfds*sizeof(int));
Fd[0]=-1;
/* capture signals */
tst_sig(FORK, DEF_HANDLER, cleanup);
/* make a temp directory and cd to it */
tst_tmpdir();
/* Pause if that option was specified */
TEST_PAUSE;
/*
* open the file as many times as it takes to use up all fds
*/
sprintf(Fname, "dupfile");
for (Nfds=1; Nfds<=maxfds; Nfds++) {
if ((Fd[Nfds-1] = open(Fname,O_RDWR|O_CREAT,0700)) == -1) {
Nfds--; /* on a open failure, decrement the counter */
if ( errno == EMFILE ) {
break;
}
else { /* open failed for some other reason */
tst_brkm(TBROK, cleanup,
"open(%s, O_RDWR|O_CREAT,0700) Failed, errno=%d : %s",
Fname, errno, strerror(errno));
}
}
}
/*
* make sure at least one was open and that all fds were opened.
*/
if ( Nfds == 0 ) {
tst_brkm(TBROK, cleanup, "Unable to open at least one file");
}
if ( Nfds > maxfds ) {
tst_brkm(TBROK, cleanup,
"Unable to open enough files to use all file descriptors, tried %d",
maxfds);
}
} /* 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;
/* close the open file we've been dup'ing */
if (Fd) {
while (Nfds-- >0) {
if (close(Fd[Nfds]) == -1) {
tst_resm(TWARN, "close(%s) Failed, errno=%d : %s",
Fname, errno, strerror(errno));
}
Fd[Nfds]=-1;
}
free(Fd);
}
/* Remove tmp dir and all files in it */
tst_rmdir();
/* exit with return code appropriate for results */
tst_exit();
} /* End cleanup() */