1 /* 2 * NAME 3 * fcntl01.c 4 * 5 * DESCRIPTION 6 * Test F_DUPFD, F_SETFL cmds of fcntl 7 * 8 * CALLS 9 * fcntl 10 * 11 * ALGORITHM 12 * 13 * 1. Testing F_DUPFD cmd with arg less than, equal to, and greater 14 * than the next available file descriptor. 15 * 16 * 2. Checking F_SETFL cmd with each valid flag (O_NDELAY, O_APPEND). 17 * 18 * 3. Checking, setting and reading `close on exec' flag. 19 * 20 * USAGE 21 * fcntl01 22 * 23 * HISTORY 24 * 07/2001 Ported by Wayne Boyer 25 * 09/2002 added fd2 array to remove statid fds 26 * 27 * RESTRICTIONS 28 * None 29 * 30 */ 31 32 #include <fcntl.h> 33 #include <errno.h> 34 #include <sys/types.h> 35 #include <sys/stat.h> 36 #include "test.h" 37 38 void setup(void); 39 void cleanup(void); 40 41 char *TCID = "fcntl01"; 42 int TST_TOTAL = 1; 43 44 int main(int ac, char **av) 45 { 46 int flags; 47 char fname[40]; 48 int fd[10], fd2[10]; 49 int mypid, i; 50 int lc; 51 52 tst_parse_opts(ac, av, NULL, NULL); 53 54 setup(); 55 56 /* check for looping state if -i option is given */ 57 for (lc = 0; TEST_LOOPING(lc); lc++) { 58 59 tst_count = 0; 60 61 mypid = getpid(); 62 for (i = 0; i < 8; i++) { 63 sprintf(fname, "./fcntl%d.%d", i, mypid); 64 if ((fd[i] = 65 open(fname, O_WRONLY | O_CREAT, 0666)) == -1) 66 tst_resm(TBROK | TERRNO, "open failed"); 67 fd2[i] = fd[i]; 68 } 69 70 close(fd[2]); 71 close(fd[3]); 72 close(fd[4]); 73 close(fd[5]); 74 75 if ((fd[2] = fcntl(fd[1], F_DUPFD, 1)) == -1) 76 tst_resm(TFAIL | TERRNO, "fcntl(.., 1) failed"); 77 78 if (fd[2] < fd2[2]) 79 tst_resm(TFAIL, "new fd has unexpected value: " 80 "got %d, expected greater than %d", fd[2], 5); 81 82 if ((fd[4] = fcntl(fd[1], F_DUPFD, fd2[3])) < 0) 83 tst_resm(TFAIL | TERRNO, "fcntl(.., fd2[3]) failed"); 84 85 if (fd[4] < fd2[3]) 86 tst_resm(TFAIL, "new fd has unexpected value, got %d, " 87 "expect greater than %d", fd[4], fd2[3]); 88 89 if ((fd[8] = fcntl(fd[1], F_DUPFD, fd2[5])) < 0) 90 tst_resm(TFAIL | TERRNO, "fcntl(.., fd2[5]) failed"); 91 92 if (fd[8] != fd2[5]) 93 tst_resm(TFAIL, "new fd has unexpected value: " 94 "got %d, expected %d", fd[8], fd2[5]); 95 /* //block1: */ 96 flags = fcntl(fd[2], F_GETFL, 0); 97 if ((flags & O_WRONLY) == 0) 98 tst_resm(TFAIL, "unexpected flag 0x%x, expected 0x%x", 99 flags, O_WRONLY); 100 101 /* Check setting of no_delay flag */ 102 if (fcntl(fd[2], F_SETFL, O_NDELAY) == -1) 103 tst_resm(TBROK | TERRNO, "fcntl(.., O_NDELAY) failed"); 104 105 flags = fcntl(fd[2], F_GETFL, 0); 106 if ((flags & (O_NDELAY | O_WRONLY)) == 0) 107 tst_resm(TFAIL, "unexpected flag 0x%x, expected 0x%x", 108 flags, O_NDELAY | O_WRONLY); 109 110 /* Check of setting append flag */ 111 if (fcntl(fd[2], F_SETFL, O_APPEND) == -1) 112 tst_resm(TFAIL | TERRNO, "fcntl(.., O_APPEND) failed"); 113 114 flags = fcntl(fd[2], F_GETFL, 0); 115 if ((flags & (O_APPEND | O_WRONLY)) == 0) 116 tst_resm(TFAIL, "unexpected flag ox%x, expected 0x%x", 117 flags, O_APPEND | O_WRONLY); 118 119 /* Check setting flags together */ 120 if (fcntl(fd[2], F_SETFL, O_NDELAY | O_APPEND) < 0) 121 tst_resm(TFAIL, "fcntl(.., O_NDELAY|O_APPEND) failed"); 122 123 flags = fcntl(fd[2], F_GETFL, 0); 124 if ((flags & (O_NDELAY | O_APPEND | O_WRONLY)) == 0) 125 tst_resm(TFAIL, "unexpected flag 0x%x, expected 0x%x", 126 flags, 127 O_NDELAY | O_APPEND | O_SYNC | O_WRONLY); 128 129 /* Check that flags are not cummulative */ 130 if (fcntl(fd[2], F_SETFL, 0) == -1) 131 tst_resm(TFAIL, "fcntl(.., 0) failed"); 132 133 flags = fcntl(fd[2], F_GETFL, 0); 134 if ((flags & O_WRONLY) == 0) 135 tst_resm(TFAIL, "unexpected flag 0x%x, expected 0x%x", 136 flags, O_WRONLY); 137 138 /* //block2: */ 139 /* 140 * Check ability to set (F_SETFD) the close on exec flag 141 */ 142 if ((flags = fcntl(fd[2], F_GETFD, 0)) < 0) 143 tst_resm(TFAIL | TERRNO, 144 "fcntl(.., F_GETFD, ..) #1 failed"); 145 if (flags != 0) 146 tst_resm(TFAIL, "unexpected flags got 0x%x expected " 147 "0x%x", flags, 0); 148 if ((flags = fcntl(fd[2], F_SETFD, 1)) == -1) 149 tst_resm(TFAIL, "fcntl(.., F_SETFD, ..) failed"); 150 if ((flags = fcntl(fd[2], F_GETFD, 0)) == -1) 151 tst_resm(TFAIL | TERRNO, 152 "fcntl(.., F_GETFD, ..) #2 failed"); 153 if (flags != 1) 154 tst_resm(TFAIL, "unexpected flags, got 0x%x, " 155 "expected 0x%x", flags, 1); 156 157 for (i = 0; i < ARRAY_SIZE(fd); i++) 158 close(fd[i]); 159 for (i = 0; i < 8; i++) { 160 sprintf(fname, "./fcntl%d.%d", i, mypid); 161 if ((unlink(fname)) == -1) 162 tst_resm(TFAIL | TERRNO, 163 "unlinking %s failed", fname); 164 } 165 } 166 cleanup(); 167 tst_exit(); 168 } 169 170 /* 171 * setup 172 * performs all ONE TIME setup for this test 173 */ 174 void setup(void) 175 { 176 tst_sig(FORK, DEF_HANDLER, cleanup); 177 umask(0); 178 TEST_PAUSE; 179 tst_tmpdir(); 180 } 181 182 void cleanup(void) 183 { 184 tst_rmdir(); 185 186 } 187
