352 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			352 lines
		
	
	
		
			10 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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|  *
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|  *    OS Testing - Silicon Graphics, Inc.
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|  *
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|  *    FUNCTION NAME     : tst_tmpdir, tst_rmdir
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|  *
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|  *    FUNCTION TITLE    : Create/remove a testing temp dir
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|  *
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|  *    SYNOPSIS:
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|  *      void tst_tmpdir();
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|  *      void tst_rmdir();
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|  *
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|  *    AUTHOR            : Dave Fenner
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|  *
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|  *    INITIAL RELEASE   : UNICOS 8.0
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|  *
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|  *    DESCRIPTION
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|  *      tst_tmpdir() is used to create a unique, temporary testing
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|  *      directory, and make it the current working directory.
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|  *      tst_rmdir() is used to remove the directory created by
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|  *      tst_tmpdir().
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|  *
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|  *      Setting the env variable "TDIRECTORY" will override the creation
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|  *      of a new temp dir.  The directory specified by TDIRECTORY will
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|  *      be used as the temporary directory, and no removal will be done
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|  *      in tst_rmdir().
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|  *
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|  *    RETURN VALUE
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|  *      Neither tst_tmpdir() or tst_rmdir() has a return value.
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|  *
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|  *#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#**/
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| #include <stdio.h>
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| #include <errno.h>
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| #include <stdlib.h>        /* for getenv() */
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| #include <string.h>        /* for string functions */
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| #include <unistd.h>        /* for sysconf(), getcwd(), rmdir() */
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| #include <sys/types.h>     /* for mkdir() */
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| #include <sys/stat.h>      /* for mkdir() */
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| #include "test.h"
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| #include "rmobj.h"
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| 
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| /*
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|  * Define some useful macros.
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|  */
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| #define PREFIX_SIZE     4
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| #define STRING_SIZE     256
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| #define DIR_MODE        0777  /* mode of tmp dir that will be created */
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| 
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| #ifndef PATH_MAX
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| #ifdef MAXPATHLEN
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| #define PATH_MAX MAXPATHLEN
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| #else
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| #define PATH_MAX 1024
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| #endif
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| #endif
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| 
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| /*
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|  * Define function prototypes.
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|  */
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| static void tmpdir_cleanup();
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| 
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| /*
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|  * Define global variables.
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|  */
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| extern char *TCID;            /* defined/initialized in main() */
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| extern int  TST_TOTAL;        /* defined/initialized in main() */
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| extern char *TESTDIR;         /* the directory created; defined in */
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|                               /* tst_res.c */
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| 
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| /*
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|  * tst_tmpdir() - Create a unique temporary directory and chdir() to it.
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|  *                It expects the caller to have defined/initialized the
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|  *                TCID/TST_TOTAL global variables.  The TESTDIR global
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|  *                variable will be set to the directory that gets used
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|  *                as the testing directory.
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|  *
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|  *                NOTE: This function must be called BEFORE any activity
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|  *                that would require CLEANUP.  If tst_tmpdir() fails, it
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|  *                cleans up afer itself and calls tst_exit() (i.e. does
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|  *                not return).
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|  */
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| #undef   FN_NAME
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| #define  FN_NAME  "tst_tmpdir()"
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| 
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| void
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| tst_tmpdir()
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| {
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|    char prefix[PREFIX_SIZE];     /* first three characters from TCID */
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|    int  no_cleanup = 0;          /* !0 means TDIRECTORY env var was set */
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| 
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|    /*
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|     * If the TDIRECTORY env variable is not set, a temp dir will be
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|     * created.
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|     */
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|    if ( (TESTDIR = getenv(TDIRECTORY)) == NULL ) {
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|       /*
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|        * Create a unique name based on the first three characters of the
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|        * TCID.  The last byte in "prefix" is for the null.
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|        */
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|       strncpy(prefix, TCID, PREFIX_SIZE - 1);
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|       prefix[PREFIX_SIZE-1] = '\0';
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|       if ( (TESTDIR = tempnam(TEMPDIR, prefix)) == NULL )
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|          tst_brkm(TBROK, tmpdir_cleanup, "%s: tempnam(%s, %s) failed",
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|                   FN_NAME, TEMPDIR, prefix);
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| 
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|       /*
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|        * Create the temporary directory.
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|        */
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|       if ( mkdir(TESTDIR, DIR_MODE) == -1 )
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|          tst_brkm(TBROK, tmpdir_cleanup,
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|                   "%s: mkdir(%s, %#o) failed; errno = %d: %s", 
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|                   FN_NAME, TESTDIR, DIR_MODE, errno, strerror(errno));
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| 
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|       /*
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|        * Change the group on this temporary directory to be that of the
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|        * gid of the person running the tests.
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|        */
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|       if ( chown(TESTDIR, -1, getgid()) == -1 )
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|          tst_brkm(TBROK, tmpdir_cleanup,
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|                   "chown(%s, -1, %d) failed; errno = %d: %s", 
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|                   TESTDIR, getgid(), errno, strerror(errno));
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|    } else {
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|       /*
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|        * The TDIRECTORY env. variable is set, so no temp dir is created.
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|        * Also, no clean up will be done via tst_rmdir().
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|        */
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|       no_cleanup++;
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| #if UNIT_TEST
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|       printf("TDIRECTORY env var is set\n");
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| #endif
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|    }
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| 
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| #if UNIT_TEST
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|       printf("TESTDIR = %s\n", TESTDIR);
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| #endif
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| 
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|    /*
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|     * Change to the temporary directory.  If the chdir() fails, issue
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|     * TBROK messages for all test cases, attempt to remove the
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|     * directory (if it was created), and exit.  If the removal also
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|     * fails, also issue a TWARN message.   
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|     */
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|    if ( chdir(TESTDIR) == -1 ) {
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|       tst_brkm(TBROK, NULL, "%s: chdir(%s) failed; errno = %d: %s",
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|                FN_NAME, TESTDIR, errno, strerror(errno) );
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| 
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|       /* Try to remove the directory */
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|       if ( !no_cleanup && rmdir(TESTDIR) == -1 )
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|          tst_resm(TWARN, "%s: rmdir(%s) failed; errno = %d: %s",
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|                   FN_NAME, TESTDIR, errno, strerror(errno) );
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| 
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|       tmpdir_cleanup();
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|    }
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| 
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| #if UNIT_TEST
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|    printf("CWD is %s\n", getcwd((char *)NULL, PATH_MAX));
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| #endif
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| 
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|    /*
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|     *  If we made through all this stuff, return.
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|     */
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|    return;
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| }  /* tst_tmpdir() */
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| 
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| 
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| /*
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|  *
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|  * tst_rmdir() - Recursively remove the temporary directory created by
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|  *               tst_tmpdir().  This function is intended ONLY as a
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|  *               companion to tst_tmpdir().  If the TDIRECTORY
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|  *               environment variable is set, no cleanup will be
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|  *               attempted.
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|  */ 
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| #undef   FN_NAME
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| #define  FN_NAME  "tst_rmdir()"
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| 
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| void
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| tst_rmdir()
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| {
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|    char *errmsg;
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|    char *tdirectory;
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|    char current_dir[PATH_MAX];   /* current working directory */
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|    char parent_dir[PATH_MAX];    /* directory above TESTDIR */
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|    char *basename;               /* basename of the TESTDIR */
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| 
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|    /*
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|     * If the TDIRECTORY env variable is set, this indicates that no
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|     * temp dir was created by tst_tmpdir().  Thus no cleanup will be
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|     * necessary.
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|     */
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|    if ( (tdirectory = getenv(TDIRECTORY)) != NULL ) {
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| #if UNIT_TEST
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|       printf("\"TDIRECORY\" env variable is set; no cleanup was performed\n");
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| #endif
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|       return;
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|    }
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|    
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|    /*
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|     * Check that TESTDIR is not NULL.
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|     */
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|    if ( TESTDIR == NULL ) {
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|       tst_resm(TWARN, "%s: TESTDIR was NULL; no removal attempted",
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|                FN_NAME);
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|       return;
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|    }
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| 
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|    /*
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|     * Check that the value of TESTDIR is not "*" or "/".  These could
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|     * have disastrous effects in a test run by root.
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|     */
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|    if ( strcmp(TESTDIR, "/") == 0 ) {
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|       tst_resm(TWARN,
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|                "%s: Recursive remove of root directory not attempted",
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|                FN_NAME);
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|       return;
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|    }
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| 
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|    if ( strchr(TESTDIR, '*') != NULL ) {
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|       tst_resm(TWARN, "%s: Recursive remove of '*' not attempted",
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|                FN_NAME);
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|       return;
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|    }
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| 
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|    /*
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|     * Get the directory name of TESTDIR.  If TESTDIR is a relative path,
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|     * get full path.
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|     */
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|    if ( TESTDIR[0] != '/' ) {
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|       if ( getcwd(current_dir,PATH_MAX) == NULL )
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|          strcpy(parent_dir, TESTDIR);
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|       else
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|          sprintf(parent_dir, "%s/%s", current_dir, TESTDIR);
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|    } else {
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|       strcpy(parent_dir, TESTDIR);
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|    }
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|    if ( (basename = strrchr(parent_dir, '/')) != NULL ) {
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|       *basename='\0';   /* terminate at end of parent_dir */
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|    }
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| 
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|    /*
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|     * Change directory to parent_dir (The dir above TESTDIR).
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|     */
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|    if ( chdir(parent_dir) != 0 )
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|       tst_resm(TWARN,
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|                "%s: chdir(%s) failed; errno = %d: %s\nAttempting to remove temp dir anyway",
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|                FN_NAME, parent_dir, errno, strerror(errno));
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|    
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|    /*
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|     * Attempt to remove the "TESTDIR" directory, using rmobj().
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|     */
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|    if ( rmobj(TESTDIR, &errmsg) == -1 )
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|       tst_resm(TWARN, "%s: rmobj(%s) failed: %s",
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|                FN_NAME, TESTDIR, errmsg);
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| 
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|    return;
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| }  /* tst_rmdir() */
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| 
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| 
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| /*
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|  * tmpdir_cleanup() - This function is used when tst_tmpdir()
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|  *                    encounters an error, and must cleanup and exit.
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|  *                    It prints a warning message via tst_resm(), and
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|  *                    then calls tst_exit().
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|  */
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| #undef  FN_NAME
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| #define FN_NAME "tst_tmpdir()"
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| 
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| static void
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| tmpdir_cleanup()
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| {
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|    /*
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|     * Print a warning message and call tst_exit() to exit the test.
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|     */
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|    tst_resm(TWARN, "%s: No user cleanup function called before exiting",
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|             FN_NAME);
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|    tst_exit();
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| }  /* tmpdir_cleanup() */
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| 
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| 
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| #ifdef UNIT_TEST
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| /****************************************************************************
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|  * Unit test code: Takes input from stdin and can make the following
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|  *                 calls: tst_tmpdir(), tst_rmdir().
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|  ****************************************************************************/
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| int  TST_TOTAL = 10;
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| char *TCID = "TESTTCID";
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| 
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| main()
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| {
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|    int  option;
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|    char *chrptr;
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| 
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|    printf("UNIT TEST of tst_tmpdir.c.  Options to try:\n\
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|    -1 : call tst_exit()\n\
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|     0 : call tst_tmpdir()\n\
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|     1 : call tst_rmdir()\n\n");
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| 
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|    while ( 1 ) {
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|       printf("Enter options (-1, 0, 1): ");
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|       (void) scanf("%d%c", &option, &chrptr);
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| 
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|       switch ( option ) {
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|       case -1:
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|          tst_exit();
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|          break;
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| 
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|       case 0:
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|          tst_tmpdir();
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|          break;
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| 
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|       case 1:
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|          tst_rmdir();
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|          break;
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|       }  /* switch() */
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|    }  /* while() */
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| }
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| #endif  /* UNIT_TEST */
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