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Diffstat (limited to 'winsup/testsuite/winsup.api/ltp/dup03.c')
| -rw-r--r-- | winsup/testsuite/winsup.api/ltp/dup03.c | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/winsup/testsuite/winsup.api/ltp/dup03.c b/winsup/testsuite/winsup.api/ltp/dup03.c new file mode 100644 index 000000000..4870778a7 --- /dev/null +++ b/winsup/testsuite/winsup.api/ltp/dup03.c @@ -0,0 +1,292 @@ +/* + * 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 <stdlib.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 */ + + +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) { + 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; + } + free(Fd); + } + + /* Remove tmp dir and all files in it */ + tst_rmdir(); + + /* exit with return code appropriate for results */ + tst_exit(); +} /* End cleanup() */ + + |