1 /* 2 * 3 * Copyright (c) International Business Machines Corp., 2002 4 * ported from SPIE, section2/iosuite/dup3.c, by Airong Zhang 5 * Copyright (c) 2013 Cyril Hrubis <chrubis (at) suse.cz> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 15 * the GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22 /* 23 WHAT: Is the access mode the same for both file descriptors? 24 0: read only? 25 1: write only? 26 2: read/write? 27 HOW: Creat a file with each access mode; dup each file descriptor; 28 stat each file descriptor and compare mode of each pair 29 */ 30 31 #include <stdio.h> 32 #include <fcntl.h> 33 #include <sys/types.h> 34 #include <sys/stat.h> 35 #include <sys/types.h> 36 #include <sys/stat.h> 37 #include "test.h" 38 39 char *TCID = "dup07"; 40 int TST_TOTAL = 3; 41 42 static const char *testfile = "dup07"; 43 44 static void setup(void); 45 static void cleanup(void); 46 47 int main(int ac, char **av) 48 { 49 struct stat retbuf; 50 struct stat dupbuf; 51 int rdoret, wroret, rdwret; 52 int duprdo, dupwro, duprdwr; 53 54 int lc; 55 56 tst_parse_opts(ac, av, NULL, NULL); 57 58 setup(); 59 60 for (lc = 0; TEST_LOOPING(lc); lc++) { 61 62 if ((rdoret = creat(testfile, 0444)) == -1) { 63 tst_resm(TFAIL, "Unable to creat file '%s'", testfile); 64 } else { 65 if ((duprdo = dup(rdoret)) == -1) { 66 tst_resm(TFAIL, "Unable to dup '%s'", testfile); 67 } else { 68 fstat(rdoret, &retbuf); 69 fstat(duprdo, &dupbuf); 70 if (retbuf.st_mode != dupbuf.st_mode) { 71 tst_resm(TFAIL, 72 "rdonly and dup do not match"); 73 } else { 74 tst_resm(TPASS, 75 "Passed in read mode."); 76 } 77 close(duprdo); 78 } 79 close(rdoret); 80 } 81 82 unlink(testfile); 83 84 if ((wroret = creat(testfile, 0222)) == -1) { 85 tst_resm(TFAIL, "Unable to creat file '%s'", testfile); 86 } else { 87 if ((dupwro = dup(wroret)) == -1) { 88 tst_resm(TFAIL, "Unable to dup '%s'", testfile); 89 } else { 90 fstat(wroret, &retbuf); 91 fstat(dupwro, &dupbuf); 92 if (retbuf.st_mode != dupbuf.st_mode) { 93 tst_resm(TFAIL, 94 "wronly and dup do not match"); 95 } else { 96 tst_resm(TPASS, 97 "Passed in write mode."); 98 } 99 close(dupwro); 100 } 101 close(wroret); 102 103 } 104 105 unlink(testfile); 106 107 if ((rdwret = creat(testfile, 0666)) == -1) { 108 tst_resm(TFAIL, "Unable to creat file '%s'", testfile); 109 } else { 110 if ((duprdwr = dup(rdwret)) == -1) { 111 tst_resm(TFAIL, "Unable to dup '%s'", testfile); 112 } else { 113 fstat(rdwret, &retbuf); 114 fstat(duprdwr, &dupbuf); 115 if (retbuf.st_mode != dupbuf.st_mode) { 116 tst_resm(TFAIL, 117 "rdwr and dup do not match"); 118 } else { 119 tst_resm(TPASS, 120 "Passed in read/write mode."); 121 } 122 close(duprdwr); 123 } 124 close(rdwret); 125 } 126 127 unlink(testfile); 128 } 129 130 cleanup(); 131 tst_exit(); 132 } 133 134 static void setup(void) 135 { 136 tst_tmpdir(); 137 } 138 139 static void cleanup(void) 140 { 141 tst_rmdir(); 142 } 143
