| 1 | /* test28: mkdir() rmdir() Author: Jan-Mark Wams (jms@cs.vu.nl) */
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| 2 |
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| 3 | /*
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| 4 | ** Not tested readonly file systems (EROFS.)
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| 5 | ** Not tested fs full (ENOSPC.)
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| 6 | ** Not really tested EBUSY.
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| 7 | ** Not tested unlinking busy directories.
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| 8 | */
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| 9 |
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| 10 | #include <sys/types.h>
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| 11 | #include <sys/stat.h>
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| 12 | #include <sys/wait.h>
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| 13 | #include <string.h>
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| 14 | #include <stdlib.h>
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| 15 | #include <unistd.h>
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| 16 | #include <fcntl.h>
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| 17 | #include <errno.h>
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| 18 | #include <dirent.h>
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| 19 | #include <limits.h>
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| 20 | #include <time.h>
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| 21 | #include <stdio.h>
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| 22 |
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| 23 | #define MAX_ERROR 4
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| 24 | #define ITERATIONS 2
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| 25 |
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| 26 | #define DIRENT0 ((struct dirent *) NULL)
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| 27 |
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| 28 | #define System(cmd) if (system(cmd) != 0) printf("``%s'' failed\n", cmd)
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| 29 | #define Chdir(dir) if (chdir(dir) != 0) printf("Can't goto %s\n", dir)
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| 30 |
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| 31 | int errct = 0;
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| 32 | int subtest = 1;
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| 33 | int superuser;
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| 34 | char MaxName[NAME_MAX + 1]; /* Name of maximum length */
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| 35 | char MaxPath[PATH_MAX];
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| 36 | char ToLongName[NAME_MAX + 2]; /* Name of maximum +1 length */
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| 37 | char ToLongPath[PATH_MAX + 1];
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| 38 |
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| 39 | _PROTOTYPE(void main, (int argc, char *argv[]));
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| 40 | _PROTOTYPE(void test28a, (void));
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| 41 | _PROTOTYPE(void test28c, (void));
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| 42 | _PROTOTYPE(void test28b, (void));
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| 43 | _PROTOTYPE(void makelongnames, (void));
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| 44 | _PROTOTYPE(void e, (int n));
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| 45 | _PROTOTYPE(void quit, (void));
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| 46 |
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| 47 | void main(argc, argv)
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| 48 | int argc;
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| 49 | char *argv[];
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| 50 | {
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| 51 | int i, m = 0xFFFF;
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| 52 |
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| 53 | sync();
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| 54 | if (argc == 2) m = atoi(argv[1]);
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| 55 | printf("Test 28 ");
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| 56 | fflush(stdout);
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| 57 | superuser = (getuid() == 0);
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| 58 | makelongnames();
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| 59 | system("chmod 777 DIR_28/* DIR_28/*/* > /dev/null 2>&1");
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| 60 | System("rm -rf DIR_28; mkdir DIR_28");
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| 61 | Chdir("DIR_28");
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| 62 | umask(0000); /* no umask */
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| 63 |
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| 64 | for (i = 0; i < ITERATIONS; i++) {
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| 65 | if (m & 0001) test28a();
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| 66 | if (m & 0002) test28b();
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| 67 | if (m & 0004) test28c();
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| 68 | }
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| 69 | quit();
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| 70 | }
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| 71 |
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| 72 | void test28a()
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| 73 | {
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| 74 | int mode; /* used in for loop */
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| 75 | struct stat st;
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| 76 | time_t time1, time2;
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| 77 | DIR *dirp;
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| 78 | struct dirent *dep;
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| 79 | int dot = 0, dotdot = 0;
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| 80 |
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| 81 | subtest = 1;
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| 82 |
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| 83 | System("rm -rf foo /tmp/foo");/* clean up junk */
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| 84 |
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| 85 | /* Check relative path names */
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| 86 | if (mkdir("./foo", 0777) != 0) e(1); /* make a dir foo */
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| 87 | if (mkdir("./foo/bar", 0777) != 0) e(2); /* make foo/bar */
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| 88 | if (rmdir("foo/bar") != 0) e(3); /* delete bar */
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| 89 | if (mkdir("foo/../foo/bar", 0777) != 0) e(4); /* make bar again */
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| 90 | if (rmdir("./foo/bar") != 0) e(5); /* and remove again */
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| 91 |
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| 92 | /* Foo should be empty (ie. contain only "." and ".." */
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| 93 | if ((dirp = opendir("foo")) == (DIR *) NULL) e(6); /* open foo */
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| 94 | if ((dep = readdir(dirp)) == DIRENT0) e(7); /* get first entry */
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| 95 | if (strcmp(dep->d_name, ".") == 0) dot += 1; /* record what it is */
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| 96 | if (strcmp(dep->d_name, "..") == 0) dotdot += 1;
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| 97 | if ((dep = readdir(dirp)) == DIRENT0) e(8); /* get second entry */
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| 98 | if (strcmp(dep->d_name, ".") == 0) dot += 1; /* record again */
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| 99 | if (strcmp(dep->d_name, "..") == 0) dotdot += 1;
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| 100 | if ((dep = readdir(dirp)) != DIRENT0) e(9); /* no 3d entry */
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| 101 | if (dot == 1 && dotdot != 1) e(10); /* only . and .. */
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| 102 | if (closedir(dirp) != 0) e(11); /* close foo */
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| 103 | if (rmdir("./foo") != 0) e(12); /* remove dir foo */
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| 104 |
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| 105 | /* Check absolute path names */
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| 106 | if (mkdir("/tmp/foo", 0777) != 0) e(13);
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| 107 | if (mkdir("/tmp/foo/bar", 0777) != 0) e(14);
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| 108 | if (rmdir("/tmp/foo/bar") != 0) e(15); /* make some dirs */
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| 109 | if (rmdir("/tmp/foo") != 0) e(16);
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| 110 |
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| 111 | /* Check the mode arument for mkdir() */
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| 112 | for (mode = 0; mode <= 0777; mode++) {
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| 113 | if (mkdir("foo", mode) != 0) e(17); /* make foo */
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| 114 | if (stat("foo", &st) != 0) e(18);
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| 115 | if ((st.st_mode & 0777) != mode) e(19); /* check it's mode */
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| 116 | if (rmdir("foo") != 0) e(20); /* and remove it */
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| 117 | }
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| 118 |
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| 119 | /* Check the stat */
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| 120 | time(&time1);
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| 121 | while (time1 >= time((time_t *)0))
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| 122 | ;
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| 123 | if (mkdir("foo", 0765) != 0) e(21); /* make foo */
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| 124 | if (stat("foo", &st) != 0) e(22);
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| 125 | time(&time2);
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| 126 | while (time2 >= time((time_t *)0))
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| 127 | ;
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| 128 | time(&time2);
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| 129 | if (st.st_nlink != 2) e(23);
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| 130 | if (st.st_uid != geteuid()) e(24);
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| 131 | if (st.st_gid != getegid()) e(25);
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| 132 | if (st.st_size < 0) e(26);
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| 133 | if ((st.st_mode & 0777) != 0765) e(27);
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| 134 | if (st.st_atime <= time1) e(28);
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| 135 | if (st.st_atime >= time2) e(29);
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| 136 | if (st.st_ctime <= time1) e(30);
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| 137 | if (st.st_ctime >= time2) e(31);
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| 138 | if (st.st_mtime <= time1) e(32);
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| 139 | if (st.st_mtime >= time2) e(33);
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| 140 |
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| 141 | /* Check if parent is updated */
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| 142 | if (stat(".", &st) != 0) e(34);
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| 143 | time(&time2);
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| 144 | while (time2 >= time((time_t *)0))
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| 145 | ;
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| 146 | time(&time2);
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| 147 | if (st.st_ctime <= time1) e(35);
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| 148 | if (st.st_ctime >= time2) e(36);
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| 149 | if (st.st_mtime <= time1) e(37);
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| 150 | if (st.st_mtime >= time2) e(38);
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| 151 | time(&time1);
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| 152 | while (time1 >= time((time_t *)0))
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| 153 | ;
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| 154 | if (rmdir("foo") != 0) e(39);
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| 155 | if (stat(".", &st) != 0) e(40);
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| 156 | time(&time2);
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| 157 | while (time2 >= time((time_t *)0))
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| 158 | ;
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| 159 | time(&time2);
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| 160 | if (st.st_ctime <= time1) e(41);
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| 161 | if (st.st_ctime >= time2) e(42);
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| 162 | if (st.st_mtime <= time1) e(43);
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| 163 | if (st.st_mtime >= time2) e(44);
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| 164 | }
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| 165 |
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| 166 | void test28b()
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| 167 | { /* Test critical values. */
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| 168 | struct stat st;
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| 169 | DIR *dirp;
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| 170 | struct dirent *dep;
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| 171 | int fd; /* file descriptor */
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| 172 | int other = 0, dot = 0, dotdot = 0; /* dirent counters */
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| 173 | int rmdir_result; /* tmp var */
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| 174 | nlink_t nlink;
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| 175 | static char bar[20];
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| 176 | int stat_loc;
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| 177 |
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| 178 | subtest = 2;
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| 179 |
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| 180 | System("rm -rf ../DIR_28/*");
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| 181 |
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| 182 | /* Check funny but valid path names */
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| 183 | if (mkdir("/../../..////.//../tmp/foo/", 0777) != 0) e(1);
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| 184 | if (mkdir("/tmp/foo//////..//foo//../foo/bar/", 0777) != 0) e(2);
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| 185 | if (rmdir("///tmp/..//tmp/foo/bar//../..//foo/bar") != 0) e(3);
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| 186 | if (mkdir("///tmp/foo/foobar//", 0777) != 0) e(4);
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| 187 | if (rmdir("/tmp/foo/foobar//") != 0) e(5);
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| 188 | if (rmdir("/.././/././/tmp/foo///////////////") != 0) e(6);
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| 189 | if (rmdir("/tmp/foo") != -1) e(7); /* try again */
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| 190 |
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| 191 | /* Test max path ed. */
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| 192 | if (mkdir(MaxName, 0777) != 0) e(9); /* make dir MaxName */
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| 193 | if (rmdir(MaxName) != 0) e(10); /* and remove it */
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| 194 | MaxPath[strlen(MaxPath) - 2] = '/'; /* convert MaxPath */
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| 195 | MaxPath[strlen(MaxPath) - 1] = 'a'; /* to ././.../a */
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| 196 | if (mkdir(MaxPath, 0777) != 0) e(11); /* it should be */
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| 197 | if (rmdir(MaxPath) != 0) e(12); /* ok */
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| 198 |
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| 199 | /* Test too long path ed. */
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| 200 | if (mkdir(ToLongName, 0777) != 0) e(17); /* Try ToLongName */
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| 201 | if (rmdir(ToLongName) != 0) e(18); /* and remove it */
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| 202 | ToLongPath[strlen(ToLongPath) - 2] = '/'; /* make ToLongPath */
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| 203 | ToLongPath[strlen(ToLongPath) - 1] = 'a'; /* contain ././.../a */
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| 204 | if (mkdir(ToLongPath, 0777) != -1) e(19); /* it should */
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| 205 | if (errno != ENAMETOOLONG) e(20); /* not be ok */
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| 206 | if (rmdir(ToLongPath) != -1) e(21);
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| 207 | if (errno != ENAMETOOLONG) e(22);
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| 208 |
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| 209 | if (mkdir("foo", 0777) != 0) e(23);
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| 210 | System("touch foo/xyzzy");
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| 211 | #if 0
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| 212 | /* Test what happens if the parent link count > LINK_MAX. */
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| 213 | /* This takes too long. */
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| 214 | for (nlink = 1; nlink < LINK_MAX; nlink++) { /* make all */
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| 215 | sprintf(bar, "foo/bar.%d", nlink);
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| 216 | if (link("foo/xyzzy", bar) != 0) e(24);
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| 217 | }
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| 218 | if (stat("foo/xyzzy", &st) != 0) e(25); /* foo now */
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| 219 | if (st.st_nlink != LINK_MAX) e(26); /* is full */
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| 220 | if (link("foo/xyzzy", "nono") != -1) e(27); /* no more */
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| 221 | if (errno != EMLINK) e(28); /* entrys. */
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| 222 | System("rm -rf foo/nono"); /* Just in case. */
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| 223 | #endif
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| 224 |
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| 225 | /* Test if rmdir removes only empty dirs */
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| 226 | if (rmdir("foo") != -1) e(29);/* not empty */
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| 227 | if (errno != EEXIST && errno != ENOTEMPTY) e(30);
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| 228 | /* Test if rmdir removes a dir with an empty file (it shouldn't.) */
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| 229 | System("rm -rf foo"); /* cleanup */
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| 230 | if (mkdir("foo", 0777) != 0) e(31);
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| 231 | System("> foo/empty"); /* > empty */
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| 232 | if (rmdir("foo") != -1) e(32);/* not empty */
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| 233 | if (errno != EEXIST && errno != ENOTEMPTY) e(33);
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| 234 | if (unlink("foo/empty") != 0) e(34); /* rm empty */
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| 235 |
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| 236 | /* See what happens if foo is linked. */
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| 237 | if (superuser) {
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| 238 | if (link("foo", "footoo") != 0) e(35); /* foo still */
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| 239 | if (rmdir("footoo") != 0) e(36); /* exist */
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| 240 | if (chdir("footoo") != -1) e(37); /* footoo */
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| 241 | if (errno != ENOENT) e(38); /* is gone */
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| 242 | }
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| 243 | #ifdef _MINIX
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| 244 | /* Some implementations might allow users to link directories. */
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| 245 | if (!superuser) {
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| 246 | if (link("foo", "footoo") != -1) e(39);
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| 247 | if (errno != EPERM) e(40);
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| 248 | if (unlink("foo") != -1) e(41);
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| 249 | if (errno != EPERM) e(42);
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| 250 | }
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| 251 | #endif
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| 252 |
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| 253 | /* See if ".." and "." are removed from the dir, and if it is
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| 254 | * unwriteable
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| 255 | * Note, we can not remove any files in the PARENT
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| 256 | * process, because this
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| 257 | * will make readdir unpredicatble. (see
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| 258 | * 1003.1 page 84 line 30.) However
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| 259 | * removal of the directory is
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| 260 | * not specified in the standard.
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| 261 | */
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| 262 | System("rm -rf /tmp/sema[12].07");
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| 263 | switch (fork()) {
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| 264 | case -1: printf("Can't fork\n"); break;
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| 265 |
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| 266 | case 0:
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| 267 | alarm(20);
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| 268 | if ((fd = open("foo", O_RDONLY)) <= 2) e(43); /* open */
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| 269 | if ((dirp = opendir("foo")) == (DIR *) NULL) e(44); /* opendir */
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| 270 | /* UpA downB */
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| 271 | system(">/tmp/sema1.07; while test -f /tmp/sema1.07; do sleep 1;done");
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| 272 | while ((dep = readdir(dirp)) != DIRENT0) {
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| 273 | if (strcmp(dep->d_name, "..") == 0)
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| 274 | dotdot += 1;
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| 275 | else if (strcmp(dep->d_name, ".") == 0)
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| 276 | dot += 1;
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| 277 | else
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| 278 | other += 1;
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| 279 | }
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| 280 | if (dotdot != 0) e(45); /* no entrys */
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| 281 | if (dot != 0) e(46); /* shoul be */
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| 282 | if (other != 0) e(47); /* left or */
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| 283 |
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| 284 | /* No new files (entrys) are allowed on foo */
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| 285 | if (creat("foo/nono", 0777) != -1) e(48); /* makeable */
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| 286 | if (closedir(dirp) != 0) e(49); /* close foo */
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| 287 | system("while test ! -f /tmp/sema2.07; do sleep 1; done"); /* downA */
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| 288 | System("rm -f /tmp/sema2.07"); /* clean up */
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| 289 |
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| 290 | /* Foo still exist, so we should be able to get a fstat */
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| 291 | if (fstat(fd, &st) != 0) e(50);
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| 292 | if (st.st_nlink != (nlink_t) 0) e(51); /* 0 left */
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| 293 | if (close(fd) != 0) e(52); /* last one */
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| 294 | exit(0);
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| 295 |
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| 296 | default:
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| 297 | system("while test ! -f /tmp/sema1.07; do sleep 1; done"); /* downA */
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| 298 | if (rmdir("foo") != 0) e(53); /* cleanerup */
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| 299 | System("rm -f /tmp/sema1.07"); /* upB */
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| 300 | if (chdir("foo") != -1) e(54); /* it should */
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| 301 | if (errno != ENOENT) e(55); /* be gone */
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| 302 | System("> /tmp/sema2.07"); /* upA */
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| 303 | if (wait(&stat_loc) == -1) e(56);
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| 304 | if (stat_loc != 0) e(57);
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| 305 | }
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| 306 |
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| 307 | /* See if foo isn't accessible any more */
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| 308 | if (chdir("foo") != -1) e(58);
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| 309 | if (errno != ENOENT) e(59);
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| 310 |
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| 311 | /* Let's see if we can get a EBUSSY..... */
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| 312 | if (mkdir("foo", 0777) != 0) e(60); /* mkdir foo */
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| 313 | System("rm -f /tmp/sema.07"); /* unness */
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| 314 | switch (fork()) {
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| 315 | case -1: printf("Can't fork\n"); break;
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| 316 | case 0:
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| 317 | alarm(20);
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| 318 | if (chdir("foo") != 0) e(61); /* child goes */
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| 319 | System("> /tmp/sema.07"); /* upA */
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| 320 | system("while test -f /tmp/sema.07; do sleep 1; done"); /* downB */
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| 321 | sleep(1);
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| 322 | exit(0);
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| 323 | default:
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| 324 | system("while test ! -f /tmp/sema.07; do sleep 1; done"); /* downA */
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| 325 | rmdir_result = rmdir("foo"); /* try remove */
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| 326 | if (rmdir_result == -1) { /* if it failed */
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| 327 | if (errno != EBUSY) e(62); /* foo is busy */
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| 328 | } else {
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| 329 | if (rmdir_result != 0) e(63);
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| 330 | if (rmdir("foo") != -1) e(64); /* not removable */
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| 331 | if (errno != ENOENT) e(65); /* again. */
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| 332 | if (chdir("foo") != -1) e(66); /* we can't go */
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| 333 | if (errno != ENOENT) e(67); /* there any more */
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| 334 | if (mkdir("foo", 0777) != 0) e(68); /* we can remake foo */
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| 335 | }
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| 336 | System("rm -f /tmp/sema.07"); /* upB */
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| 337 | if (wait(&stat_loc) == -1) e(69);
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| 338 | if (stat_loc != 0) e(70);
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| 339 | }
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| 340 | if (rmdir("foo") != 0) e(71); /* clean up */
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| 341 | }
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| 342 |
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| 343 | void test28c()
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| 344 | { /* Test error handeling. */
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| 345 | subtest = 3;
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| 346 |
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| 347 | System("rm -rf ../DIR_28/*");
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| 348 | System("rm -rf foo /tmp/foo");/* clean up junk */
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| 349 |
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| 350 | /* Test common errors */
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| 351 | if (mkdir("foo", 0777) != 0) e(1); /* mkdir shouldn't fail */
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| 352 | if (mkdir("foo", 0777) != -1) e(2); /* should fail the 2d time */
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| 353 | if (errno != EEXIST) e(3); /* because it exists already */
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| 354 | if (rmdir("foo") != 0) e(4); /* rmdir shouldn't fail */
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| 355 | if (rmdir("foo") != -1) e(5); /* but it should now because */
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| 356 | if (errno != ENOENT) e(6); /* it's gone the 1st time */
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| 357 | /* Test on access etc. */
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| 358 | if (mkdir("foo", 0777) != 0) e(7);
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| 359 | if (mkdir("foo/bar", 0777) != 0) e(8);
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| 360 | if (!superuser) {
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| 361 | System("chmod 677 foo");/* make foo inaccesable */
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| 362 | if (mkdir("foo/foo", 0777) != -1) e(9);
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| 363 | if (errno != EACCES) e(10);
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| 364 | if (rmdir("foo/bar") != -1) e(11);
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| 365 | if (errno != EACCES) e(12);
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| 366 | System("chmod 577 foo");/* make foo unwritable */
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| 367 | if (mkdir("foo/foo", 0777) != -1) e(13);
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| 368 | if (errno != EACCES) e(14);
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| 369 | if (rmdir("foo/bar") != -1) e(15);
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| 370 | if (errno != EACCES) e(16);
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| 371 | System("chmod 777 foo");/* make foo full accessable */
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| 372 | }
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| 373 | if (rmdir("foo/bar") != 0) e(17); /* bar should be removable */
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| 374 | if (mkdir("foo/no/foo", 0777) != -1) e(18); /* Note: "no" doesn't exist */
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| 375 | if (errno != ENOENT) e(19);
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| 376 | if (mkdir("", 0777) != -1) e(20); /* empty string isn't ok */
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| 377 | if (errno != ENOENT) e(21);
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| 378 | if (rmdir("") != -1) e(22); /* empty string isn't ok */
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| 379 | if (errno != ENOENT) e(23);
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| 380 | System("> foo/no"); /* make a file "no" */
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| 381 | if (mkdir("foo/no/foo", 0777) != -1) e(24);
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| 382 | if (errno != ENOTDIR) e(25); /* note: "no" is not a a dir */
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| 383 | if (rmdir("foo/no/foo") != -1) e(26);
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| 384 | if (errno != ENOTDIR) e(27);
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| 385 | System("rm -rf foo"); /* clean up */
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| 386 | }
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| 387 |
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| 388 | void makelongnames()
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| 389 | {
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| 390 | register int i;
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| 391 |
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| 392 | memset(MaxName, 'a', NAME_MAX);
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| 393 | MaxName[NAME_MAX] = '\0';
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| 394 | for (i = 0; i < PATH_MAX - 1; i++) { /* idem path */
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| 395 | MaxPath[i++] = '.';
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| 396 | MaxPath[i] = '/';
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| 397 | }
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| 398 | MaxPath[PATH_MAX - 1] = '\0';
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| 399 |
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| 400 | strcpy(ToLongName, MaxName); /* copy them Max to ToLong */
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| 401 | strcpy(ToLongPath, MaxPath);
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| 402 |
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| 403 | ToLongName[NAME_MAX] = 'a';
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| 404 | ToLongName[NAME_MAX + 1] = '\0'; /* extend ToLongName by one too many */
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| 405 | ToLongPath[PATH_MAX - 1] = '/';
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| 406 | ToLongPath[PATH_MAX] = '\0'; /* inc ToLongPath by one */
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| 407 | }
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| 408 |
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| 409 | void e(n)
|
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| 410 | int n;
|
|---|
| 411 | {
|
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| 412 | int err_num = errno; /* Save in case printf clobbers it. */
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| 413 |
|
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| 414 | printf("Subtest %d, error %d errno=%d: ", subtest, n, errno);
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| 415 | errno = err_num;
|
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| 416 | perror("");
|
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| 417 | if (errct++ > MAX_ERROR) {
|
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| 418 | printf("Too many errors; test aborted\n");
|
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| 419 | chdir("..");
|
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| 420 | system("rm -rf DIR*");
|
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| 421 | exit(1);
|
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| 422 | }
|
|---|
| 423 | errno = 0;
|
|---|
| 424 | }
|
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| 425 |
|
|---|
| 426 | void quit()
|
|---|
| 427 | {
|
|---|
| 428 | Chdir("..");
|
|---|
| 429 | System("rm -rf DIR_28");
|
|---|
| 430 |
|
|---|
| 431 | if (errct == 0) {
|
|---|
| 432 | printf("ok\n");
|
|---|
| 433 | exit(0);
|
|---|
| 434 | } else {
|
|---|
| 435 | printf("%d errors\n", errct);
|
|---|
| 436 | exit(1);
|
|---|
| 437 | }
|
|---|
| 438 | }
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|---|
