access01.c

cygwin, 著名的在win32下模拟unix操作系统的东东

/*
 * 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: access01.c,v 1.3 2001/03/10 16:45:28 duda Exp $ */
/**********************************************************
 * 
 *    OS Test - Silicon Graphics, Inc.
 * 
 *    TEST IDENTIFIER	: access01
 * 
 *    EXECUTED BY	: anyone
 * 
 *    TEST TITLE	: Basic test for access(2) using F_OK,
 *                        R_OK, W_OK and X_OK arguments.
 * 
 *    PARENT DOCUMENT	: usctpl01
 * 
 *    TEST CASE TOTAL	: 6
 * 
 *    WALL CLOCK TIME	: 1
 * 
 *    CPU TYPES		: ALL
 * 
 *    AUTHOR		: William Roske
 * 
 *    CO-PILOT		: Dave Fenner
 * 
 *    DATE STARTED	: 03/30/92
 * 
 *    INITIAL RELEASE	: UNICOS 7.0
 * 
 *    TEST CASES
 * 
 * 	1.) access(2) returns 0 for F_OK...(See Description)
 * 	2.) access(2) returns 0 for R_OK...(See Description)
 * 	3.) access(2) returns 0 for W_OK...(See Description)
 * 	4.) access(2) returns 0 for X_OK...(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
 * 	The libcuts.a and libsys.a libraries must be included in 
 *	the compilation of this test.
 * 
 *    SPECIAL PROCEDURAL REQUIREMENTS
 * 	None
 * 
 *    INTERCASE DEPENDENCIES
 * 	None
 * 
 *    DETAILED DESCRIPTION
 *	This is a Phase I test for the access(2) system call.  It is intended
 *	to provide a limited exposure of the system call, for now.  It
 *	should/will be extended when full functional tests are written for
 *	access(2).
 * 
 * 	Setup:
 * 	  Setup signal handling.
 *	  Pause for SIGUSR1 if option specified.
 *	  Create a temp directory and cd to it.
 *	  Creat a temp file wil read, write and execute permissions.
 * 
 * 	Test:
 *	 Loop if the proper options are given.
 *	  Execute system call with F_OK on tmp file
 *	  Check return code, if system call failed (return=-1)
 *		Log the errno and Issue a FAIL message.
 *	  Otherwise, Issue a PASS message.
 *	  Execute system call with X_OK on tmp file...
 *	  Execute system call with W_OK on tmp file...
 * 	  Execute system call with R_OK on tmp file...
 * 
 * 	Cleanup:
 * 	  Print errno log
 * 
 * 
 *#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#**/

#include <string.h>
#include <sys/unistd.h>
#include <sys/types.h>
#include <sys/fcntl.h>
#include <errno.h>
#include <signal.h>
#include <sys/stat.h>
#include "test.h"
#include "usctest.h"
void setup();
void cleanup();

char *TCID="access01"; 	/* Test program identifier.    */
int TST_TOTAL=4;    		/* Total number of test cases. */
extern int Tst_count;		/* Test Case counter for tst_* routines */


char Fname[255];


/***********************************************************************
 * Main
 ***********************************************************************/
int main(int ac, char **av)
{
    struct test_case_t {
        char *file;
        unsigned mode;
        const char *string;
        int experrno;
    } Test_cases[] = {
        { Fname, F_OK,  "F_OK", 0 },
        { Fname, X_OK,  "X_OK", 0 },
        { Fname, W_OK,  "W_OK", 0 },
        { Fname, R_OK,  "R_OK", 0 },
    };

    int Ntc = sizeof(Test_cases) / sizeof(struct test_case_t);
    int lc;		/* loop counter */
    const char *msg;		/* message returned from parse_opts */
    int tc;

    TST_TOTAL=Ntc;
    
    /***************************************************************
     * 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;

	for (tc=0; tc<Ntc; tc++) {
	    /* 
	     * Call access(2) 
	     */
	    TEST(access(Test_cases[tc].file, Test_cases[tc].mode));
	
	    /* check return code */
	    if ( TEST_RETURN == -1 && Test_cases[tc].experrno == 0 ) {
	        tst_resm(TFAIL, "access(%s, %s) Failed, errno=%d : %s", 
		     Test_cases[tc].file, Test_cases[tc].string, 
		     TEST_ERRNO, strerror(TEST_ERRNO));

	    } else if ( TEST_RETURN != -1 && Test_cases[tc].experrno != 0 ) {
		tst_resm(TFAIL, "access(%s, %s) returned %d, exp -1, errno:%d",
		    Test_cases[tc].file, Test_cases[tc].string,
		    TEST_RETURN, Test_cases[tc].experrno);
	    } else {

	        /***************************************************************
	         * only perform functional verification if flag set (-f not given)
	         ***************************************************************/
	        if ( STD_FUNCTIONAL_TEST ) {
		    /* No Verification test, yet... */
		    tst_resm(TPASS, "access(%s, %s) returned %d", 
			Test_cases[tc].file, Test_cases[tc].string, 
		        TEST_RETURN);
	        } 
	    }
	}

    }	/* End for TEST_LOOPING */

    /***************************************************************
     * cleanup and exit
     ***************************************************************/
    cleanup();

    return 0;
}	/* End main */

/***************************************************************
 * setup() - performs all ONE TIME setup for this test.
 ***************************************************************/
void 
setup()
{ 
    int fd;
    struct stat stbuf;

    /* capture signals */
    tst_sig(FORK, DEF_HANDLER, cleanup);

    umask(0);	/* reset umask avoid it affects on modes */

    /* make a temp directory and cd to it */
    tst_tmpdir();

    /* 
     * Since files inherit group ids, make sure our dir has a valid grp
     * to us.
     */
    chown(".", -1, getgid());

    /* Pause if that option was specified */
    TEST_PAUSE;

    sprintf(Fname,"accessfile");

    if ((fd = open(Fname, O_RDWR|O_CREAT, 06777)) == -1) {
        tst_brkm(TBROK, cleanup, "open(%s, O_RDWR|O_CREAT,06777) Failed, errno=%d : %s",
	    Fname, errno, strerror(errno));
    }
    else if (close(fd) == -1) {
        tst_resm(TINFO, "close(%s) Failed, errno=%d : %s",
	    Fname, errno, strerror(errno));
    }

    /*
     * force the mode to be set to 6777
     */
    if (chmod(Fname, 06777) == -1 ) {
	tst_brkm(TBROK, cleanup, "chmod(%s, 06777) failed, errno:%d %s\n",
	    Fname, errno, strerror(errno));
    }

    stat(Fname, &stbuf);

    if ( (stbuf.st_mode & 06777) != 06777 ) {
	/*
	 * file can not be properly setup
	 */
    }

}	/* 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.
     */
    TEST_CLEANUP;

    /* remove the temp dir */
    tst_rmdir();

    /* exit with return code appropriate for results */
    tst_exit();

}	/* End cleanup() */