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      1 /******************************************************************************
      2  *
      3  *   Copyright (c) International Business Machines  Corp., 2006
      4  *
      5  *   This program is free software;  you can redistribute it and/or modify
      6  *   it under the terms of the GNU General Public License as published by
      7  *   the Free Software Foundation; either version 2 of the License, or
      8  *   (at your option) any later version.
      9  *
     10  *   This program is distributed in the hope that it will be useful,
     11  *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
     12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
     13  *   the GNU General Public License for more details.
     14  *
     15  *   You should have received a copy of the GNU General Public License
     16  *   along with this program;  if not, write to the Free Software
     17  *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
     18  *
     19  * NAME
     20  *      faccessat01.c
     21  *
     22  * DESCRIPTION
     23  *	This test case will verify basic function of faccessat
     24  *	added by kernel 2.6.16 or up.
     25  *
     26  * Author
     27  *	Yi Yang <yyangcdl (at) cn.ibm.com>
     28  *
     29  * History
     30  *      08/28/2006      Created first by Yi Yang <yyangcdl (at) cn.ibm.com>
     31  *
     32  *****************************************************************************/
     33 
     34 #define _GNU_SOURCE
     35 
     36 #include <sys/types.h>
     37 #include <sys/stat.h>
     38 #include <fcntl.h>
     39 #include <unistd.h>
     40 #include <stdlib.h>
     41 #include <errno.h>
     42 #include <string.h>
     43 #include <signal.h>
     44 #include "test.h"
     45 #include "safe_macros.h"
     46 #include "lapi/syscalls.h"
     47 
     48 #define TEST_CASES 6
     49 #ifndef AT_FDCWD
     50 #define AT_FDCWD -100
     51 #endif
     52 void setup();
     53 void cleanup();
     54 
     55 char *TCID = "faccessat01";
     56 int TST_TOTAL = TEST_CASES;
     57 static char pathname[256];
     58 static char testfile[256];
     59 static char testfile2[256];
     60 static char testfile3[256];
     61 static int fds[TEST_CASES];
     62 static char *filenames[TEST_CASES];
     63 static int expected_errno[TEST_CASES] = { 0, 0, ENOTDIR, EBADF, 0, 0 };
     64 
     65 int myfaccessat(int dirfd, const char *filename, int mode)
     66 {
     67 	return ltp_syscall(__NR_faccessat, dirfd, filename, mode);
     68 }
     69 
     70 int main(int ac, char **av)
     71 {
     72 	int lc;
     73 	int i;
     74 
     75 	/* Disable test if the version of the kernel is less than 2.6.16 */
     76 	if ((tst_kvercmp(2, 6, 16)) < 0)
     77 		tst_brkm(TCONF, NULL, "Test must be run with kernel 2.6.16+");
     78 
     79 	tst_parse_opts(ac, av, NULL, NULL);
     80 
     81 	setup();
     82 
     83 	for (lc = 0; TEST_LOOPING(lc); lc++) {
     84 		tst_count = 0;
     85 
     86 		/*
     87 		 * Call faccessat
     88 		 */
     89 		for (i = 0; i < TST_TOTAL; i++) {
     90 			TEST(myfaccessat(fds[i], filenames[i], R_OK));
     91 
     92 			/* check return code */
     93 			if (TEST_ERRNO == expected_errno[i]) {
     94 				tst_resm(TPASS,
     95 					 "faccessat() returned the expected  errno %d: %s",
     96 					 TEST_ERRNO,
     97 					 strerror(TEST_ERRNO));
     98 			} else {
     99 				tst_resm(TFAIL,
    100 					 "faccessdat() Failed, errno=%d : %s",
    101 					 TEST_ERRNO, strerror(TEST_ERRNO));
    102 			}
    103 		}
    104 	}
    105 
    106 	cleanup();
    107 	tst_exit();
    108 }
    109 
    110 void setup(void)
    111 {
    112 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
    113 
    114 	tst_tmpdir();
    115 
    116 	char *abs_path = tst_get_tmpdir();
    117 	int p = getpid();
    118 
    119 	/* Initialize test dir and file names */
    120 	sprintf(pathname, "faccessattestdir%d", p);
    121 	sprintf(testfile, "faccessattestfile%d.txt", p);
    122 	sprintf(testfile2, "%s/faccessattestfile%d.txt", abs_path, p);
    123 	sprintf(testfile3, "faccessattestdir%d/faccessattestfile%d.txt", p, p);
    124 
    125 	free(abs_path);
    126 
    127 	SAFE_MKDIR(cleanup, pathname, 0700);
    128 
    129 	fds[0] = SAFE_OPEN(cleanup, pathname, O_DIRECTORY);
    130 	fds[1] = fds[4] = fds[0];
    131 
    132 	SAFE_FILE_PRINTF(cleanup, testfile, "%s", testfile);
    133 	SAFE_FILE_PRINTF(cleanup, testfile2, "%s", testfile2);
    134 
    135 	fds[2] = SAFE_OPEN(cleanup, testfile3, O_CREAT | O_RDWR, 0600);
    136 
    137 	fds[3] = 100;
    138 	fds[5] = AT_FDCWD;
    139 
    140 	filenames[0] = filenames[2] = filenames[3] = filenames[4] = testfile;
    141 	filenames[1] = testfile2;
    142 	filenames[5] = testfile3;
    143 
    144 	TEST_PAUSE;
    145 }
    146 
    147 void cleanup(void)
    148 {
    149 	if (fds[0] > 0)
    150 		close(fds[0]);
    151 	if (fds[2] > 0)
    152 		close(fds[2]);
    153 
    154 	tst_rmdir();
    155 }
    156