| /* |
| * 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: dup03.c,v 1.2 2000/08/30 18:43:38 nstraz Exp $ */ |
| /********************************************************** |
| * |
| * 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(); |
| |
| |
| |
| 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 */ |
| |
| |
| #define MAX_FDS 16384 |
| |
| char Fname[255]; |
| int Fd[MAX_FDS]; |
| int Nfds=0; |
| |
| /*********************************************************************** |
| * Main |
| ***********************************************************************/ |
| int |
| main(int ac, char **av) |
| { |
| int lc; /* loop counter */ |
| 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() |
| { |
| |
| /* |
| * Initialize Fd in case we get a quick signal |
| */ |
| 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<=MAX_FDS; 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 > MAX_FDS ) { |
| tst_brkm(TBROK, cleanup, |
| "Unable to open enough files to use all file descriptors, tried %d", |
| MAX_FDS); |
| } |
| } /* 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 */ |
| for (; Nfds >0 ; Nfds--) { |
| if (close(Fd[Nfds-1]) == -1) { |
| tst_resm(TWARN, "close(%s) Failed, errno=%d : %s", |
| Fname, errno, strerror(errno)); |
| } |
| Fd[Nfds]=-1; |
| } |
| |
| /* Remove tmp dir and all files in it */ |
| tst_rmdir(); |
| |
| /* exit with return code appropriate for results */ |
| tst_exit(); |
| } /* End cleanup() */ |
| |
| |