diff options
Diffstat (limited to 'winsup/testsuite/winsup.api/ltp/symlink03.c')
| -rw-r--r-- | winsup/testsuite/winsup.api/ltp/symlink03.c | 404 |
1 files changed, 404 insertions, 0 deletions
diff --git a/winsup/testsuite/winsup.api/ltp/symlink03.c b/winsup/testsuite/winsup.api/ltp/symlink03.c new file mode 100644 index 000000000..9cdb74b18 --- /dev/null +++ b/winsup/testsuite/winsup.api/ltp/symlink03.c @@ -0,0 +1,404 @@ +/* + * + * Copyright (c) International Business Machines Corp., 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* + * Test Name : symlink03 + * + * Test Description : + * Verify that, + * 1) symlink(2) returns -1 and sets errno to EACCES if search/write + * permission is denied in the directory where the symbolic link is + * being created. + * 2) symlink(2) returns -1 and sets errno to EEXIST if the specified + * symbolic link already exists. + * 3) symlink(2) returns -1 and sets errno to EFAULT if the specified + * file or symbolic link points to invalid address. + * 4) symlink(2) returns -1 and sets errno to ENAMETOOLONG if the + * pathname component of symbolic link is too long (ie, > PATH_MAX). + * 5) symlink(2) returns -1 and sets errno to ENOTDIR if the directory + * component in pathname of symbolic link is not a directory. + * 6) symlink(2) returns -1 and sets errno to ENOENT if the component of + * symbolic link points to an empty string. + * + * Expected Result: + * symlink() should fail with return value -1 and set expected errno. + * + * Algorithm: + * Setup: + * Setup signal handling. + * Create temporary directory. + * 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) + * if errno set == expected errno + * Issue sys call fails with expected return value and errno. + * Otherwise, + * Issue sys call fails with unexpected errno. + * Otherwise, + * Issue sys call returns unexpected value. + * + * Cleanup: + * Print errno log and/or timing stats if options given + * Delete the temporary directory(s)/file(s) created. + * + * Usage: <for command-line> + * symlink03 [-c n] [-e] [-i n] [-I x] [-p x] [-t] + * where, -c n : Run n copies concurrently. + * -e : Turn on errno logging. + * -i n : Execute test n times. + * -I x : Execute test for x seconds. + * -P x : Pause for x seconds between iterations. + * -t : Turn on syscall timing. + * + * History + * 07/2001 John George + * -Ported + * + * Restrictions: + * This test should be executed by 'non-super-user' only. + */ + +#include <stdio.h> +#include <sys/types.h> +#include <sys/fcntl.h> +#include <errno.h> +#include <string.h> +#include <signal.h> +#include <sys/stat.h> + +#include "test.h" +#include "usctest.h" + +#define MODE_RWX S_IRWXU | S_IRWXG | S_IRWXO +#define FILE_MODE S_IRUSR | S_IRGRP | S_IROTH +#define DIR_TEMP "testdir_1" +#define TESTFILE "testfile" +#define TEST_FILE1 "testdir_1/tfile_1" +#define SYM_FILE1 "testdir_1/sfile_1" +#define TEST_FILE2 "tfile_2" +#define SYM_FILE2 "sfile_2" +#define TEST_FILE3 "tfile_3" +#define SYM_FILE3 "t_file/sfile_3" + +char *TCID="symlink03"; /* Test program identifier. */ +int TST_TOTAL=1; /* Total number of test cases. */ +extern int Tst_count; /* Test Case counter for tst_* routines */ +int exp_enos[]={ENOTDIR, ENOENT, ENAMETOOLONG, EFAULT, EEXIST, EACCES, 0}; + +int no_setup(); +int setup1(); /* setup function to test symlink for EACCES */ +int setup2(); /* setup function to test symlink for EEXIST */ +int setup3(); /* setup function to test symlink for ENOTDIR */ +int longpath_setup(); /* setup function to test chmod for ENAMETOOLONG */ + +char Longpathname[PATH_MAX+2]; +char High_address_node[64]; + +struct test_case_t { /* test case struct. to hold ref. test cond's*/ + char *file; + char *link; + char *desc; + int exp_errno; + int (*setupfunc)(); +} Test_cases[] = { + { TEST_FILE1, SYM_FILE1, "No Search permissions to process", EACCES, setup1 }, + { TEST_FILE2, SYM_FILE2, "Specified symlink already exists", EEXIST, setup2 }, + { TESTFILE, High_address_node, "Address beyond address space", EFAULT, no_setup }, + { TESTFILE, (char *)-1, "Negative address", EFAULT, no_setup }, + { TESTFILE, Longpathname, "Symlink path too long", ENAMETOOLONG, longpath_setup }, + { TESTFILE, "", "Symlink Pathname is empty", ENOENT, no_setup }, +#ifndef __CYGWIN__ + { TEST_FILE3, SYM_FILE3, "Symlink Path contains regular file", ENOTDIR, setup3 }, +#endif + { NULL, NULL, NULL, 0, no_setup } +}; + +extern void setup(); /* Setup function for the test */ +extern void cleanup(); /* Cleanup function for the test */ + +int +main(int ac, char **av) +{ + int lc; /* loop counter */ + const char *msg; /* message returned from parse_opts */ + char *test_file; /* testfile name */ + char *sym_file; /* symbolic link file name */ + char *test_desc; /* test specific error message */ + int ind; /* counter to test different test conditions */ + + /* Parse standard options given to run the test. */ + msg = parse_opts(ac, av, (option_t *) NULL, NULL); + if (msg != (char *) NULL) { + tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); + tst_exit(); + /*NOTREACHED*/ + } + + /* + * Invoke setup function to call individual test setup functions + * to simulate test conditions. + */ + setup(); + + /* set the expected errnos... */ + TEST_EXP_ENOS(exp_enos); + + /* Check looping state if -i option given */ + for (lc = 0; TEST_LOOPING(lc); lc++) { + /* Reset Tst_count in case we are looping. */ + Tst_count=0; + + for (ind = 0; Test_cases[ind].desc != NULL; ind++) { + test_file = Test_cases[ind].file; + sym_file = Test_cases[ind].link; + test_desc = Test_cases[ind].desc; + + if (sym_file == High_address_node) { + sym_file = (char *)get_high_address(); + } + /* + * Call symlink(2) to test different test conditions. + * verify that it fails with -1 return value and sets + * appropriate errno. + */ + TEST(symlink(test_file, sym_file)); + + /* Check return code of symlink(2) */ + if (TEST_RETURN == -1) { + /* + * Perform functional verification if + * test executed without (-f) option. + */ + TEST_ERROR_LOG(TEST_ERRNO); + if (TEST_ERRNO == Test_cases[ind].exp_errno) { + tst_resm(TPASS, "symlink() Fails, %s, " + "errno=%d", test_desc, + TEST_ERRNO); + } else { + tst_resm(TFAIL, "symlink() Fails, %s, " + "errno=%d, expected errno=%d", + test_desc, TEST_ERRNO, + Test_cases[ind].exp_errno); + } + } else { + tst_resm(TFAIL, "symlink() returned %d, " + "expected -1, errno:%d", TEST_RETURN, + Test_cases[ind].exp_errno); + } + } /* End of TEST CASE LOOPING. */ + + Tst_count++; /* incr. TEST_LOOP counter */ + } /* End for TEST_LOOPING */ + + /* Call cleanup() to undo setup done for the test. */ + cleanup(); + /*NOTREACHED*/ + +} /* End main */ + +/* + * void + * setup() - performs all ONE TIME setup for this test. + * Create a temporary directory and change directory to it. + * Call test specific setup functions. + */ +void +setup() +{ + int ind; + /* capture signals */ + tst_sig(NOFORK, DEF_HANDLER, cleanup); + + /* Pause if that option was specified + * TEST_PAUSE contains the code to fork the test with the -i option. + * You want to make sure you do this before you create your temporary + * directory. + */ + TEST_PAUSE; + + /* make a temp directory and cd to it */ + tst_tmpdir(); + + /* call individual setup functions */ + for (ind = 0; Test_cases[ind].desc != NULL; ind++) { + Test_cases[ind].setupfunc(); + } +} /* End setup() */ + +/* + * int + * no_setup() - Some test conditions for mknod(2) do not any setup. + * Hence, this function just returns 0. + * This function simply returns 0. + */ +int +no_setup() +{ + return 0; +} + +/* + * int + * setup1() - setup function for a test condition for which symlink(2) + * returns -1 and sets errno to EACCES. + * Create a test directory under temporary directory and create a test file + * under this directory with mode "0666" permissions. + * Modify the mode permissions on test directory such that process will not + * have search permissions on test directory. + * + * The function returns 0. + */ +int +setup1() +{ + int fd; /* file handle for testfile */ + + if (mkdir(DIR_TEMP, MODE_RWX) < 0) { + tst_brkm(TBROK, cleanup, "mkdir(2) of %s failed", DIR_TEMP); + /*NOTREACHED*/ + } + + if ((fd = open(TEST_FILE1, O_RDWR|O_CREAT, 0666)) == -1) { + tst_brkm(TBROK, cleanup, + "open(%s, O_RDWR|O_CREAT, 0666) failed, errno=%d : %s", + TEST_FILE1, errno, strerror(errno)); + /*NOTREACHED*/ + } + if (close(fd) == -1) { + tst_brkm(TBROK, cleanup, + "close(%s) Failed, errno=%d : %s", + TEST_FILE1, errno, strerror(errno)); + /*NOTREACHED*/ + } + + /* Modify mode permissions on test directory */ + if (chmod(DIR_TEMP, FILE_MODE) < 0) { + tst_brkm(TBROK, cleanup, "chmod(2) of %s failed", DIR_TEMP); + /*NOTREACHED*/ + } + return 0; +} + +/* + * int + * setup2() - EEXIST + */ +int +setup2() +{ + int fd; /* file handle for testfile */ + + if ((fd = open(TEST_FILE2, O_RDWR|O_CREAT, 0666)) == -1) { + tst_brkm(TBROK, cleanup, + "open(%s, O_RDWR|O_CREAT, 0666) failed, errno=%d : %s", + TEST_FILE1, errno, strerror(errno)); + /*NOTREACHED*/ + } + if (close(fd) == -1) { + tst_brkm(TBROK, cleanup, + "close(%s) Failed, errno=%d : %s", + TEST_FILE2, errno, strerror(errno)); + /*NOTREACHED*/ + } + + if (symlink(TEST_FILE2, SYM_FILE2) < 0) { + tst_brkm(TBROK, cleanup, + "symlink() Fails to create %s in setup2, error=%d", + SYM_FILE2, errno); + /*NOTREACHED*/ + } + return 0; +} + +/* + * int + * longpath_setup() - setup to create a node with a name length exceeding + * the MAX. length of PATH_MAX. + * This function retruns 0. + */ +int +longpath_setup() +{ + int ind; /* counter variable */ + + for (ind = 0; ind <= (PATH_MAX + 1); ind++) { + Longpathname[ind] = 'a'; + } + return 0; +} + +/* + * int + * setup3() - setup function for a test condition for which symlink(2) + * returns -1 and sets errno to ENOTDIR. + * + * Create a symlink file under temporary directory so that test tries to + * create symlink file "tfile_3" under "t_file" which happens to be + * another symlink file. + */ +int +setup3() +{ + int fd; /* file handle for testfile */ + + /* Creat/open a testfile and close it */ + if ((fd = open("t_file", O_RDWR|O_CREAT, MODE_RWX)) == -1) { + tst_brkm(TBROK, cleanup, + "open(2) on t_file failed, errno=%d : %s", + errno, strerror(errno)); + /*NOTREACHED*/ + } + if (close(fd) == -1) { + tst_brkm(TBROK, cleanup, "close(t_file) Failed, errno=%d : %s", + errno, strerror(errno)); + /*NOTREACHED*/ + } + return 0; +} + +/* + * void + * cleanup() - performs all ONE TIME cleanup for this test at + * completion or premature exit. + * Restore the mode permissions on test directory. + * Remove the temporary directory created in the setup. + */ +void +cleanup() +{ + /* + * print timing stats if that option was specified. + * print errno log if that option was specified. + */ + TEST_CLEANUP; + + /* Restore mode permissions on test directory created in setup2() */ + if (chmod(DIR_TEMP, MODE_RWX) < 0) { + tst_brkm(TBROK, NULL, "chmod(2) of %s failed", DIR_TEMP); + } + + /* Remove tmp dir and all files in it */ + tst_rmdir(); + + /* exit with return code appropriate for results */ + tst_exit(); +} /* End cleanup() */ |