292 lines
7.9 KiB
C
292 lines
7.9 KiB
C
/*
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* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* Further, this software is distributed without any warranty that it is
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* free of the rightful claim of any third person regarding infringement
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* or the like. Any license provided herein, whether implied or
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* otherwise, applies only to this software file. Patent licenses, if
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* any, provided herein do not apply to combinations of this program with
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* other software, or any other product whatsoever.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write the Free Software Foundation, Inc., 59
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* Temple Place - Suite 330, Boston MA 02111-1307, USA.
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*
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* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
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* Mountain View, CA 94043, or:
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*
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* http://www.sgi.com
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*
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* For further information regarding this notice, see:
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*
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* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
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*
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*/
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/* $Id$ */
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/**********************************************************
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*
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* OS Test - Silicon Graphics, Inc.
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*
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* TEST IDENTIFIER : dup03
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*
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* EXECUTED BY : anyone
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*
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* TEST TITLE : Negative test for dup(2) (too many fds)
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*
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* PARENT DOCUMENT : usctpl01
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*
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* TEST CASE TOTAL : 1
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*
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* WALL CLOCK TIME : 1
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*
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* CPU TYPES : ALL
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*
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* AUTHOR : Richard Logan
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*
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* CO-PILOT : William Roske
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*
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* DATE STARTED : 06/94
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*
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* INITIAL RELEASE : UNICOS 7.0
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*
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* TEST CASES
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*
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* 1.) dup(2) returns...(See Description)
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*
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* INPUT SPECIFICATIONS
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* The standard options for system call tests are accepted.
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* (See the parse_opts(3) man page).
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*
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* OUTPUT SPECIFICATIONS
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*
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* DURATION
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* Terminates - with frequency and infinite modes.
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*
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* SIGNALS
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* Uses SIGUSR1 to pause before test if option set.
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* (See the parse_opts(3) man page).
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*
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* RESOURCES
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* None
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*
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* ENVIRONMENTAL NEEDS
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* No run-time environmental needs.
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*
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* SPECIAL PROCEDURAL REQUIREMENTS
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* None
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*
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* INTERCASE DEPENDENCIES
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* None
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*
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* DETAILED DESCRIPTION
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*
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* Setup:
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* Setup signal handling.
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* Pause for SIGUSR1 if option specified.
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*
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* Test:
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* Loop if the proper options are given.
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* Execute system call
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* Check return code, if system call failed (return=-1)
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* Log the errno and Issue a FAIL message.
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* Otherwise, Issue a PASS message.
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*
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* Cleanup:
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* Print errno log and/or timing stats if options given
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*
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*
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*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#**/
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#include <sys/types.h>
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#include <sys/fcntl.h>
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#include <errno.h>
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#include <string.h>
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#include <signal.h>
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#include "test.h"
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#include "usctest.h"
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void setup();
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void cleanup(void) __attribute__((noreturn));
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const char *TCID="dup03"; /* Test program identifier. */
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int TST_TOTAL=1; /* Total number of test cases. */
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extern int Tst_count; /* Test Case counter for tst_* routines */
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char Fname[255];
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int *Fd = NULL;
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int Nfds=0;
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/***********************************************************************
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* Main
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***********************************************************************/
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int
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main(int ac, char **av)
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{
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int lc; /* loop counter */
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const char *msg; /* message returned from parse_opts */
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/***************************************************************
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* parse standard options
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***************************************************************/
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if ( (msg=parse_opts(ac, av, (option_t *) NULL, NULL)) != (char *) NULL ) {
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tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
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tst_exit();
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}
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/***************************************************************
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* perform global setup for test
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***************************************************************/
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setup();
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/***************************************************************
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* check looping state if -c option given
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***************************************************************/
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for (lc=0; TEST_LOOPING(lc); lc++) {
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/* reset Tst_count in case we are looping. */
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Tst_count=0;
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/*
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* Call dup(2)
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*/
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TEST( dup(Fd[0]) );
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/* check return code */
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if ( TEST_RETURN == -1 ) {
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if ( STD_FUNCTIONAL_TEST ) {
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if ( TEST_ERRNO == EMFILE ) {
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tst_resm(TPASS, "dup(%d) Failed, errno=%d : %s", Fd[0],
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TEST_ERRNO, strerror(TEST_ERRNO));
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}
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else {
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tst_resm(TFAIL, "dup(%d) Failed, errno=%d %s, expected %d (EMFILE)",
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Fd[0], TEST_ERRNO, strerror(TEST_ERRNO), EMFILE);
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}
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}
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} else {
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tst_resm(TFAIL, "dup(%d) returned %d, expected -1, errno:%d (EMFILE)",
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Fd[0], TEST_RETURN, EMFILE);
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/* close the new file so loops do not open too many files */
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if (close(TEST_RETURN) == -1) {
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tst_brkm(TBROK, cleanup, "close(%s) Failed, errno=%d : %s",
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Fname, errno, strerror(errno));
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}
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}
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} /* End for TEST_LOOPING */
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/***************************************************************
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* cleanup and exit
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***************************************************************/
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cleanup();
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return 0;
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} /* End main */
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/***************************************************************
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* setup() - performs all ONE TIME setup for this test.
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***************************************************************/
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void
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setup()
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{
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long maxfds;
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/*
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* Initialize Fd in case we get a quick signal
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*/
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maxfds = sysconf(_SC_OPEN_MAX);
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if (maxfds < 1) {
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tst_brkm(TBROK, cleanup,
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"sysconf(_SC_OPEN_MAX) Failed, errno=%d : %s",
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errno, strerror(errno));
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}
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Fd = (int *)malloc(maxfds*sizeof(int));
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Fd[0]=-1;
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/* capture signals */
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tst_sig(FORK, DEF_HANDLER, cleanup);
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/* make a temp directory and cd to it */
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tst_tmpdir();
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/* Pause if that option was specified */
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TEST_PAUSE;
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/*
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* open the file as many times as it takes to use up all fds
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*/
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sprintf(Fname, "dupfile");
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for (Nfds=1; Nfds<=maxfds; Nfds++) {
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if ((Fd[Nfds-1] = open(Fname,O_RDWR|O_CREAT,0700)) == -1) {
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Nfds--; /* on a open failure, decrement the counter */
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if ( errno == EMFILE ) {
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break;
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}
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else { /* open failed for some other reason */
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tst_brkm(TBROK, cleanup,
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"open(%s, O_RDWR|O_CREAT,0700) Failed, errno=%d : %s",
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Fname, errno, strerror(errno));
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}
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}
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}
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/*
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* make sure at least one was open and that all fds were opened.
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*/
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if ( Nfds == 0 ) {
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tst_brkm(TBROK, cleanup, "Unable to open at least one file");
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}
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if ( Nfds > maxfds ) {
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tst_brkm(TBROK, cleanup,
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"Unable to open enough files to use all file descriptors, tried %d",
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maxfds);
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}
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} /* End setup() */
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/***************************************************************
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* cleanup() - performs all ONE TIME cleanup for this test at
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* completion or premature exit.
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***************************************************************/
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void
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cleanup()
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{
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/*
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* print timing stats if that option was specified.
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* print errno log if that option was specified.
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*/
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TEST_CLEANUP;
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/* close the open file we've been dup'ing */
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if (Fd) {
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while (Nfds-- >0) {
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if (close(Fd[Nfds]) == -1) {
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tst_resm(TWARN, "close(%s) Failed, errno=%d : %s",
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Fname, errno, strerror(errno));
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}
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Fd[Nfds]=-1;
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}
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free(Fd);
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}
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/* Remove tmp dir and all files in it */
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tst_rmdir();
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/* exit with return code appropriate for results */
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tst_exit();
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} /* End cleanup() */
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