test/test6.c

   1 /* test 6 */
   2
   3 #include <sys/types.h>
   4 #include <sys/stat.h>
   5 #include <errno.h>
   6 #include <fcntl.h>
   7 #include <limits.h>
   8 #include <signal.h>
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <stdio.h>
  12
  13 #define MAX_ERROR 4
  14
  15 int errct;
  16 int subtest = 1;
  17 int zilch[5000];
  18 char curdir[PATH_MAX];
  19
  20 _PROTOTYPE(int main, (int argc, char *argv []));
  21 _PROTOTYPE(void test6a, (void));
  22 _PROTOTYPE(void test6b, (void));
  23 _PROTOTYPE(void test6c, (void));
  24 _PROTOTYPE(void e, (int n));
  25 _PROTOTYPE(void quit, (void));
  26
  27 int main(argc, argv)
  28 int argc;
  29 char *argv[];
  30 {
  31   char buffer[PATH_MAX + 1];
  32   int i, m = 0xFFFF;
  33
  34   sync();
  35   if (geteuid() == 0 || getuid() == 0) {
  36         realpath(argv[0], buffer);
  37         execl("/usr/bin/su", "/usr/bin/su", "-", "ast", "-c", buffer, NULL);
  38         printf("Test  6 cannot run as root; test aborted\n");
  39         exit(1);
  40   }
  41
  42   if (argc == 2) m = atoi(argv[1]);
  43
  44   printf("Test  6 ");
  45   fflush(stdout);
  46
  47   getcwd(curdir, PATH_MAX);
  48   system("rm -rf DIR_06; mkdir DIR_06");
  49   chdir("DIR_06");
  50
  51   for (i = 0; i < 70; i++) {
  52         if (m & 00001) test6a();
  53         if (m & 00002) test6b();
  54         if (m & 00004) test6c();
  55   }
  56
  57   quit();
  58   return(-1);                   /* impossible */
  59 }
  60
  61 void test6a()
  62 {
  63 /* Test sbrk() and brk(). */
  64
  65   char *addr, *addr2, *addr3;
  66   int i, del, click, click2;
  67
  68   subtest = 1;
  69   addr = sbrk(0);
  70   addr = sbrk(0);               /* force break to a click boundary */
  71   for (i = 0; i < 10; i++) sbrk(7 * i);
  72   for (i = 0; i < 10; i++) sbrk(-7 * i);
  73   if (sbrk(0) != addr) e(1);
  74   sbrk(30);
  75   if (brk(addr) != 0) e(2);
  76   if (sbrk(0) != addr) e(3);
  77
  78   del = 0;
  79   do {
  80         del++;
  81         brk(addr + del);
  82         addr2 = sbrk(0);
  83   } while (addr2 == addr);
  84   click = addr2 - addr;
  85   sbrk(-1);
  86   if (sbrk(0) != addr) e(4);
  87   brk(addr);
  88   if (sbrk(0) != addr) e(5);
  89
  90   del = 0;
  91   do {
  92         del++;
  93         brk(addr - del);
  94         addr3 = sbrk(0);
  95   } while (addr3 == addr);
  96   click2 = addr - addr3;
  97   sbrk(1);
  98   if (sbrk(0) != addr) e(6);
  99   brk(addr);
 100   if (sbrk(0) != addr) e(8);
 101   if (click != click2) e(9);
 102
 103   brk(addr + 2 * click);
 104   if (sbrk(0) != addr + 2 * click) e(10);
 105   sbrk(3 * click);
 106   if (sbrk(0) != addr + 5 * click) e(11);
 107   sbrk(-5 * click);
 108   if (sbrk(0) != addr) e(12);
 109 }
 110
 111 void test6b()
 112 {
 113   int i, err;
 114
 115   subtest = 2;
 116   signal(SIGQUIT, SIG_IGN);
 117   err = 0;
 118   for (i = 0; i < 5000; i++)
 119         if (zilch[i] != 0) err++;
 120   if (err > 0) e(1);
 121   kill(getpid(), SIGQUIT);
 122 }
 123
 124 void test6c()
 125 {
 126 /* Test mknod, chdir, chmod, chown, access.  */
 127
 128   int i, j;
 129   struct stat s;
 130
 131   subtest = 3;
 132   if (getuid() != 0) return;
 133   for (j = 0; j < 2; j++) {
 134         umask(0);
 135
 136         if (chdir("/") < 0) e(1);
 137         if (mknod("dir", 040700, 0) < 0) e(2);
 138         if (link("/", "/dir/..") < 0) e(3);
 139         if (mknod("T3a", 0777, 0) < 0) e(4);
 140         if (mknod("/dir/T3b", 0777, 0) < 0) e(5);
 141         if (mknod("dir/T3c", 0777, 0) < 0) e(6);
 142         if ((i = open("/dir/T3b", 0)) < 0) e(7);
 143         if (close(i) < 0) e(8);
 144         if ((i = open("dir/T3c", O_RDONLY)) < 0) e(9);
 145         if (close(i) < 0) e(10);
 146         if (chdir("dir") < 0) e(11);
 147         if ((i = open("T3b", 0)) < 0) e(12);
 148         if (close(i) < 0) e(13);
 149         if ((i = open("../T3a", O_RDONLY)) < 0) e(14);
 150         if (close(i) < 0) e(15);
 151         if ((i = open("../dir/../dir/../dir/../dir/../dir/T3c", O_RDONLY)) < 0)
 152                 e(16);
 153         if (close(i) < 0) e(17);
 154
 155         if (chmod("../dir/../dir/../dir/../dir/../T3a", 0123) < 0) e(18);
 156         if (stat("../dir/../dir/../dir/../T3a", &s) < 0) e(19);
 157         if ((s.st_mode & 077777) != 0123) e(20);
 158         if (chmod("../dir/../dir/../T3a", 0456) < 0) e(21);
 159         if (stat("../T3a", &s) < 0) e(22);
 160         if ((s.st_mode & 077777) != 0456) e(23);
 161         if (chown("../dir/../dir/../T3a", 20, 30) < 0) e(24);
 162         if (stat("../T3a", &s) < 0) e(25);
 163         if (s.st_uid != 20) e(26);
 164         if (s.st_gid != 30) e(27);
 165
 166         if ((i = open("/T3c", O_RDONLY)) >= 0) e(28);
 167         if ((i = open("/T3a", O_RDONLY)) < 0) e(29);
 168         if (close(i) < 0) e(30);
 169
 170         if (access("/T3a", 4) < 0) e(31);
 171         if (access("/dir/T3b", 4) < 0) e(32);
 172         if (access("/dir/T3d", 4) >= 0) e(33);
 173
 174         if (unlink("T3b") < 0) e(34);
 175         if (unlink("T3c") < 0) e(35);
 176         if (unlink("..") < 0) e(36);
 177         if (chdir("/") < 0) e(37);
 178         if (unlink("dir") < 0) e(38);
 179         if (unlink("/T3a") < 0) e(39);
 180   }
 181
 182 }
 183
 184 void e(n)
 185 int n;
 186 {
 187
 188   int err_num = errno;          /* save errno in case printf clobbers it */
 189
 190   printf("Subtest %d,  error %d  errno=%d  ", subtest, n, errno);
 191   errno = err_num;              /* restore errno, just in case */
 192   perror("");
 193   if (errct++ > MAX_ERROR) {
 194         printf("Too many errors; test aborted\n");
 195         chdir("..");
 196         system("rm -rf DIR*");
 197         exit(1);
 198   }
 199 }
 200
 201 void quit()
 202 {
 203
 204   chdir("..");
 205   system("rm -rf DIR*");
 206
 207   chdir(curdir);
 208   system("rm -rf DIR*");
 209   if (errct == 0) {
 210         printf("ok\n");
 211         exit(0);
 212   } else {
 213         printf("%d errors\n", errct);
 214         exit(1);
 215   }
 216 }