test/test33.c

   1 /* test33: access()             Author: Jan-Mark Wams (jms@cs.vu.nl) */
   2
   3 #include <sys/types.h>
   4 #include <sys/stat.h>
   5 #include <sys/wait.h>
   6 #include <stdlib.h>
   7 #include <unistd.h>
   8 #include <string.h>
   9 #include <fcntl.h>
  10 #include <limits.h>
  11 #include <errno.h>
  12 #include <time.h>
  13 #include <stdio.h>
  14
  15 #define MAX_ERROR      1
  16 #define ITERATIONS     2
  17
  18 #include "common.c"
  19
  20 #define System(cmd)     if (system(cmd) != 0) printf("``%s'' failed\n", cmd)
  21 #define Chdir(dir)      if (chdir(dir) != 0) printf("Can't goto %s\n", dir)
  22 #define Stat(a,b)       if (stat(a,b) != 0) printf("Can't stat %s\n", a)
  23 #define Chmod(a,b)      if (chmod(a,b) != 0) printf("Can't chmod %s\n", a)
  24 #define Mkfifo(f)       if (mkfifo(f,0777)!=0) printf("Can't make fifo %s\n", f)
  25
  26 int superuser;                  /* nonzero if uid == euid (euid == 0 always) */
  27 char *MaxName;                  /* Name of maximum length */
  28 char MaxPath[PATH_MAX];         /* Same for path */
  29 char *ToLongName;               /* Name of maximum +1 length */
  30 char ToLongPath[PATH_MAX + 1];  /* Same for path, both too long */
  31
  32 void test33a(void);
  33 void test33b(void);
  34 void test33c(void);
  35 void test33d(void);
  36 void test_access(void);
  37 void makelongnames(void);
  38
  39 int main(int argc, char *argv[])
  40 {
  41   int i, m = 0xFFFF;
  42
  43   sync();
  44   if (argc == 2) m = atoi(argv[1]);
  45   umask(0000);
  46   start(33);
  47
  48   if (geteuid() != 0) {
  49         printf("must be setuid root; test aborted\n");
  50         cleanup();
  51         exit(1);
  52   }
  53   if (getuid() == 0) {
  54        printf("must be setuid root logged in as someone else; test aborted\n");
  55        cleanup();
  56        exit(1);
  57   }
  58
  59   makelongnames();
  60   superuser = (getuid() == 0);
  61
  62   for (i = 0; i < ITERATIONS; i++) {
  63         if (m & 0001) test33a();
  64         if (m & 0002) test33b();
  65         if (m & 0004) test33c();
  66         if (m & 0010) test33d();
  67   }
  68   quit();
  69   return 1;
  70 }
  71
  72 void test33a()
  73 {                               /* Test normal operation. */
  74   int stat_loc;                 /* For the wait(&stat_loc) call. */
  75
  76   subtest = 1;
  77   System("rm -rf ../DIR_33/*");
  78
  79   /* To test normal access first make some files for real uid. */
  80   switch (fork()) {
  81       case -1:  printf("Can't fork\n"); break;
  82       case 0:
  83         alarm(20);
  84         setuid(getuid());       /* (Re)set the effective ids to the
  85                                  * real ids. */
  86         setgid(getgid());
  87         System("> rwx; chmod 700 rwx");
  88         System("> rw_; chmod 600 rw_");
  89         System("> r_x; chmod 500 r_x");
  90         System("> r__; chmod 400 r__");
  91         System("> _wx; chmod 300 _wx");
  92         System("> _w_; chmod 200 _w_");
  93         System("> __x; chmod 100 __x");
  94         System("> ___; chmod 000 ___");
  95         exit(0);
  96
  97       default:
  98         wait(&stat_loc);
  99         if (stat_loc != 0) e(1);/* Alarm? */
 100   }
 101   test_access();
 102
 103   /* Let's test access() on directorys. */
 104   switch (fork()) {
 105       case -1:  printf("Can't fork\n"); break;
 106       case 0:
 107         alarm(20);
 108         setuid(getuid());       /* (Re)set the effective ids to the
 109                                  * real ids. */
 110         setgid(getgid());
 111         System("rm -rf [_r][_w][_x]");
 112         System("mkdir rwx; chmod 700 rwx");
 113         System("mkdir rw_; chmod 600 rw_");
 114         System("mkdir r_x; chmod 500 r_x");
 115         System("mkdir r__; chmod 400 r__");
 116         System("mkdir _wx; chmod 300 _wx");
 117         System("mkdir _w_; chmod 200 _w_");
 118         System("mkdir __x; chmod 100 __x");
 119         System("mkdir ___; chmod 000 ___");
 120         exit(0);
 121
 122       default:
 123         wait(&stat_loc);
 124         if (stat_loc != 0) e(2);/* Alarm? */
 125   }
 126   test_access();
 127
 128   switch (fork()) {
 129       case -1:  printf("Can't fork\n"); break;
 130       case 0:
 131         alarm(20);
 132         setuid(getuid());       /* (Re)set the effective ids to the
 133                                  * real ids. */
 134         setgid(getgid());
 135         System("rmdir [_r][_w][_x]");
 136         Mkfifo("rwx");
 137         System("chmod 700 rwx");
 138         Mkfifo("rw_");
 139         System("chmod 600 rw_");
 140         Mkfifo("r_x");
 141         System("chmod 500 r_x");
 142         Mkfifo("r__");
 143         System("chmod 400 r__");
 144         Mkfifo("_wx");
 145         System("chmod 300 _wx");
 146         Mkfifo("_w_");
 147         System("chmod 200 _w_");
 148         Mkfifo("__x");
 149         System("chmod 100 __x");
 150         Mkfifo("___");
 151         System("chmod 000 ___");
 152         exit(0);
 153
 154       default:
 155         wait(&stat_loc);
 156         if (stat_loc != 0) e(3);/* Alarm? */
 157   }
 158   test_access();
 159
 160   /* Remove all the fifos. */
 161   switch (fork()) {
 162       case -1:  printf("Can't fork\n"); break;
 163       case 0:
 164         alarm(20);
 165         setuid(getuid());
 166         setgid(getgid());
 167         System("rm -rf [_r][_w][_x]");
 168         exit(0);
 169
 170       default:
 171         wait(&stat_loc);
 172         if (stat_loc != 0) e(4);/* Alarm? */
 173   }
 174 }
 175
 176 void test33b()
 177 {
 178   int stat_loc;                 /* For the wait(&stat_loc) call. */
 179
 180   subtest = 2;
 181   System("rm -rf ../DIR_33/*");
 182
 183   switch (fork()) {
 184       case -1:  printf("Can't fork\n"); break;
 185       case 0:
 186         alarm(20);
 187
 188         /* (Re)set the effective ids to the real ids. */
 189         setuid(getuid());
 190         setgid(getgid());
 191         System("> ______rwx; chmod 007 ______rwx");
 192         System("> ________x; chmod 001 ________x");
 193         System("> _________; chmod 000 _________");
 194         exit(0);
 195
 196       default:
 197         wait(&stat_loc);
 198         if (stat_loc != 0) e(1);/* Alarm? */
 199   }
 200
 201   /* If we are superuser, we have access to all. */
 202   /* Well, almost, execution access might need at least one X bit. */
 203   if (superuser) {
 204         if (access("_________", R_OK) != 0) e(2);
 205         if (access("_________", W_OK) != 0) e(3);
 206         if (access("________x", R_OK) != 0) e(4);
 207         if (access("________x", W_OK) != 0) e(5);
 208         if (access("________x", X_OK) != 0) e(6);
 209         if (access("______rwx", R_OK) != 0) e(7);
 210         if (access("______rwx", W_OK) != 0) e(8);
 211         if (access("______rwx", X_OK) != 0) e(9);
 212   }
 213   if (!superuser) {
 214         if (access("_________", R_OK) != -1) e(10);
 215         if (errno != EACCES) e(11);
 216         if (access("_________", W_OK) != -1) e(12);
 217         if (errno != EACCES) e(13);
 218         if (access("_________", X_OK) != -1) e(14);
 219         if (errno != EACCES) e(15);
 220         if (access("________x", R_OK) != -1) e(16);
 221         if (errno != EACCES) e(17);
 222         if (access("________x", W_OK) != -1) e(18);
 223         if (errno != EACCES) e(19);
 224         if (access("________x", X_OK) != -1) e(20);
 225         if (errno != EACCES) e(21);
 226         if (access("______rwx", R_OK) != -1) e(22);
 227         if (errno != EACCES) e(23);
 228         if (access("______rwx", W_OK) != -1) e(24);
 229         if (errno != EACCES) e(25);
 230         if (access("______rwx", X_OK) != -1) e(26);
 231         if (errno != EACCES) e(27);
 232   }
 233
 234   /* If the real uid != effective uid. */
 235   if (!superuser) {
 236         System("rm -rf [_r][_w][_x]");
 237         System("> rwx");
 238         Chmod("rwx", 0700);
 239         System("> rw_");
 240         Chmod("rw_", 0600);
 241         System("> r_x");
 242         Chmod("r_x", 0500);
 243         System("> r__");
 244         Chmod("r__", 0400);
 245         System("> _wx");
 246         Chmod("_wx", 0300);
 247         System("> _w_");
 248         Chmod("_w_", 0200);
 249         System("> __x");
 250         Chmod("__x", 0100);
 251         System("> ___");
 252         Chmod("___", 0000);
 253
 254         if (access("rwx", F_OK) != 0) e(28);
 255         if (access("rwx", R_OK) != -1) e(29);
 256         if (errno != EACCES) e(30);
 257         if (access("rwx", W_OK) != -1) e(31);
 258         if (errno != EACCES) e(32);
 259         if (access("rwx", X_OK) != -1) e(33);
 260         if (errno != EACCES) e(34);
 261
 262         if (access("rw_", F_OK) != 0) e(35);
 263         if (access("rw_", R_OK) != -1) e(36);
 264         if (errno != EACCES) e(37);
 265         if (access("rw_", W_OK) != -1) e(38);
 266         if (errno != EACCES) e(39);
 267         if (access("rw_", X_OK) != -1) e(40);
 268         if (errno != EACCES) e(41);
 269
 270         if (access("r_x", F_OK) != 0) e(42);
 271         if (access("r_x", R_OK) != -1) e(43);
 272         if (errno != EACCES) e(44);
 273         if (access("r_x", W_OK) != -1) e(45);
 274         if (errno != EACCES) e(46);
 275         if (access("r_x", X_OK) != -1) e(47);
 276         if (errno != EACCES) e(48);
 277
 278         if (access("r__", F_OK) != 0) e(49);
 279         if (access("r__", R_OK) != -1) e(50);
 280         if (errno != EACCES) e(51);
 281         if (access("r__", W_OK) != -1) e(52);
 282         if (errno != EACCES) e(53);
 283         if (access("r__", X_OK) != -1) e(54);
 284         if (errno != EACCES) e(55);
 285
 286         if (access("_wx", F_OK) != 0) e(56);
 287         if (access("_wx", R_OK) != -1) e(57);
 288         if (errno != EACCES) e(58);
 289         if (access("_wx", W_OK) != -1) e(59);
 290         if (errno != EACCES) e(60);
 291         if (access("_wx", X_OK) != -1) e(61);
 292         if (errno != EACCES) e(62);
 293
 294         if (access("_w_", F_OK) != 0) e(63);
 295         if (access("_w_", R_OK) != -1) e(64);
 296         if (errno != EACCES) e(65);
 297         if (access("_w_", W_OK) != -1) e(66);
 298         if (errno != EACCES) e(67);
 299         if (access("_w_", X_OK) != -1) e(68);
 300         if (errno != EACCES) e(69);
 301
 302         if (access("__x", F_OK) != 0) e(70);
 303         if (access("__x", R_OK) != -1) e(71);
 304         if (errno != EACCES) e(72);
 305         if (access("__x", W_OK) != -1) e(73);
 306         if (errno != EACCES) e(74);
 307         if (access("__x", X_OK) != -1) e(75);
 308         if (errno != EACCES) e(76);
 309
 310         if (access("___", F_OK) != 0) e(77);
 311         if (access("___", R_OK) != -1) e(78);
 312         if (errno != EACCES) e(79);
 313         if (access("___", W_OK) != -1) e(80);
 314         if (errno != EACCES) e(81);
 315         if (access("___", X_OK) != -1) e(82);
 316         if (errno != EACCES) e(83);
 317
 318         System("rm -rf [_r][_w][_x]");
 319   }
 320 }
 321
 322 void test33c()
 323 {                               /* Test errors returned. */
 324   int i, fd, does_truncate;
 325
 326   subtest = 3;
 327   System("rm -rf ../DIR_33/*");
 328
 329   /* Test what access() does with non existing files. */
 330   System("rm -rf nonexist");
 331   if (access("noexist", F_OK) != -1) e(1);
 332   if (errno != ENOENT) e(2);
 333   if (access("noexist", R_OK) != -1) e(3);
 334   if (errno != ENOENT) e(4);
 335   if (access("noexist", W_OK) != -1) e(5);
 336   if (errno != ENOENT) e(6);
 337   if (access("noexist", X_OK) != -1) e(7);
 338   if (errno != ENOENT) e(8);
 339   if (access("noexist", R_OK | W_OK) != -1) e(9);
 340   if (errno != ENOENT) e(10);
 341   if (access("noexist", R_OK | X_OK) != -1) e(11);
 342   if (errno != ENOENT) e(12);
 343   if (access("noexist", W_OK | X_OK) != -1) e(13);
 344   if (errno != ENOENT) e(14);
 345   if (access("noexist", R_OK | W_OK | X_OK) != -1) e(15);
 346   if (errno != ENOENT) e(16);
 347
 348   /* Test access on a nonsearchable path. */
 349   if (mkdir("nosearch", 0777) != 0) e(1000);
 350   if ( (i = creat("nosearch/file", 0666)) < 0) e(1001);
 351   if (close(i) < 0) e(1002);
 352   if ( (i = creat("file", 0666) < 0)) e(1003);
 353   if (close(i) < 0) e(1004);
 354   if (chmod("nosearch/file", 05777) < 0) e(1005);
 355   if (chmod("file", 05777) < 0) e(1006);
 356   if (chmod("nosearch", 0677) != 0) e(1007);
 357   if (access("nosearch/file", F_OK) != 0) e(17);
 358
 359   /* Test ToLongName and ToLongPath */
 360   does_truncate = does_fs_truncate();
 361   if (does_truncate) {
 362         if ((fd = creat(ToLongName, 0777)) != 0) e(18);
 363         if (close(fd) != 0) e(19);
 364         if (access(ToLongName, F_OK) != 0) e(20);
 365   } else {
 366         if ((fd = creat(ToLongName, 0777)) != -1) e(21);
 367         if (errno != ENAMETOOLONG) e(22);
 368         (void) close(fd);       /* Just in case */
 369         if (access(ToLongName, F_OK) != -1) e(23);
 370         if (errno != ENAMETOOLONG) e(24);
 371   }
 372
 373   ToLongPath[PATH_MAX - 2] = '/';
 374   ToLongPath[PATH_MAX - 1] = 'a';
 375   if (access(ToLongPath, F_OK) != -1) e(27);
 376   if (errno != ENAMETOOLONG) e(28);
 377   ToLongPath[PATH_MAX - 1] = '/';
 378
 379   /* Test empty strings. */
 380   if (access("", F_OK) != -1) e(29);
 381   if (errno != ENOENT) e(30);
 382   System("rm -rf idonotexist");
 383   if (access("idonotexist", F_OK) != -1) e(31);
 384   if (errno != ENOENT) e(32);
 385
 386   /* Test non directorys in prefix of path. */
 387   if (access("/etc/passwd/dir/foo", F_OK) != -1) e(33);
 388   if (errno != ENOTDIR) e(34);
 389   System("rm -rf nodir; > nodir");
 390   if (access("nodir/foo", F_OK) != -1) e(35);
 391   if (errno != ENOTDIR) e(36);
 392
 393   /* Test if invalid amode arguments are signaled. */
 394   System("> allmod");
 395   Chmod("allmod", 05777);
 396   for (i = -1025; i < 1025; i++) {
 397         if ((mode_t) i != F_OK && ((mode_t) i & ~(R_OK | W_OK | X_OK)) != 0) {
 398                 if (access("allmod", (mode_t) i) != -1) e(37);
 399                 if (errno != EINVAL) e(38);
 400         } else
 401                 if (access("allmod", (mode_t) i) != 0) e(39);
 402   }
 403 }
 404
 405 void test33d()
 406 {                               /* Test access() flags. */
 407 #define EXCLUDE(a,b)    (((a)^(b)) == ((a)|(b)))
 408   subtest = 4;
 409   System("rm -rf ../DIR_33/*");
 410
 411   /* The test are rather strong, stronger that POSIX specifies. */
 412   /* The should be OR able, this test tests if all the 1 bits */
 413   /* Are in diferent places. This should be what one wants. */
 414   if (!EXCLUDE(R_OK, W_OK | X_OK)) e(1);
 415   if (!EXCLUDE(W_OK, R_OK | X_OK)) e(2);
 416   if (!EXCLUDE(X_OK, R_OK | W_OK)) e(3);
 417   if (F_OK == R_OK) e(4);
 418   if (F_OK == W_OK) e(5);
 419   if (F_OK == X_OK) e(6);
 420   if (F_OK == (R_OK | W_OK)) e(7);
 421   if (F_OK == (W_OK | X_OK)) e(8);
 422   if (F_OK == (R_OK | X_OK)) e(9);
 423   if (F_OK == (R_OK | W_OK | X_OK)) e(10);
 424 }
 425
 426 void test_access()
 427 {                               /* Test all [_r][_w][_x] files. */
 428   if (!superuser) {
 429         /* Test normal access. */
 430         if (access("rwx", F_OK) != 0) e(11);
 431         if (access("rwx", R_OK) != 0) e(12);
 432         if (access("rwx", W_OK) != 0) e(13);
 433         if (access("rwx", X_OK) != 0) e(14);
 434         if (access("rwx", R_OK | W_OK) != 0) e(15);
 435         if (access("rwx", R_OK | X_OK) != 0) e(16);
 436         if (access("rwx", W_OK | X_OK) != 0) e(17);
 437         if (access("rwx", R_OK | W_OK | X_OK) != 0) e(18);
 438
 439         if (access("rw_", F_OK) != 0) e(19);
 440         if (access("rw_", R_OK) != 0) e(20);
 441         if (access("rw_", W_OK) != 0) e(21);
 442         if (access("rw_", X_OK) != -1) e(22);
 443         if (errno != EACCES) e(23);
 444         if (access("rw_", R_OK | W_OK) != 0) e(24);
 445         if (access("rw_", R_OK | X_OK) != -1) e(25);
 446         if (errno != EACCES) e(26);
 447         if (access("rw_", W_OK | X_OK) != -1) e(27);
 448         if (errno != EACCES) e(28);
 449         if (access("rw_", R_OK | W_OK | X_OK) != -1) e(29);
 450         if (errno != EACCES) e(30);
 451
 452         if (access("r_x", F_OK) != 0) e(31);
 453         if (access("r_x", R_OK) != 0) e(32);
 454         if (access("r_x", W_OK) != -1) e(33);
 455         if (errno != EACCES) e(34);
 456         if (access("r_x", X_OK) != 0) e(35);
 457         if (access("r_x", R_OK | W_OK) != -1) e(36);
 458         if (errno != EACCES) e(37);
 459         if (access("r_x", R_OK | X_OK) != 0) e(38);
 460         if (access("r_x", W_OK | X_OK) != -1) e(39);
 461         if (errno != EACCES) e(40);
 462         if (access("r_x", R_OK | W_OK | X_OK) != -1) e(41);
 463         if (errno != EACCES) e(42);
 464
 465         if (access("r__", F_OK) != 0) e(43);
 466         if (access("r__", R_OK) != 0) e(44);
 467         if (access("r__", W_OK) != -1) e(45);
 468         if (errno != EACCES) e(46);
 469         if (access("r__", X_OK) != -1) e(47);
 470         if (errno != EACCES) e(48);
 471         if (access("r__", R_OK | W_OK) != -1) e(49);
 472         if (errno != EACCES) e(50);
 473         if (access("r__", R_OK | X_OK) != -1) e(51);
 474         if (errno != EACCES) e(52);
 475         if (access("r__", W_OK | X_OK) != -1) e(53);
 476         if (errno != EACCES) e(54);
 477         if (access("r__", R_OK | W_OK | X_OK) != -1) e(55);
 478         if (errno != EACCES) e(56);
 479
 480         if (access("_wx", F_OK) != 0) e(57);
 481         if (access("_wx", R_OK) != -1) e(58);
 482         if (errno != EACCES) e(59);
 483         if (access("_wx", W_OK) != 0) e(60);
 484         if (access("_wx", X_OK) != 0) e(61);
 485         if (access("_wx", R_OK | W_OK) != -1) e(62);
 486         if (errno != EACCES) e(63);
 487         if (access("_wx", R_OK | X_OK) != -1) e(64);
 488         if (errno != EACCES) e(65);
 489         if (access("_wx", W_OK | X_OK) != 0) e(66);
 490         if (access("_wx", R_OK | W_OK | X_OK) != -1) e(67);
 491         if (errno != EACCES) e(68);
 492
 493         if (access("_w_", F_OK) != 0) e(69);
 494         if (access("_w_", R_OK) != -1) e(70);
 495         if (errno != EACCES) e(71);
 496         if (access("_w_", W_OK) != 0) e(72);
 497         if (access("_w_", X_OK) != -1) e(73);
 498         if (errno != EACCES) e(74);
 499         if (access("_w_", R_OK | W_OK) != -1) e(75);
 500         if (errno != EACCES) e(76);
 501         if (access("_w_", R_OK | X_OK) != -1) e(77);
 502         if (errno != EACCES) e(78);
 503         if (access("_w_", W_OK | X_OK) != -1) e(79);
 504         if (errno != EACCES) e(80);
 505         if (access("_w_", R_OK | W_OK | X_OK) != -1) e(81);
 506         if (errno != EACCES) e(82);
 507
 508         if (access("__x", F_OK) != 0) e(83);
 509         if (access("__x", R_OK) != -1) e(84);
 510         if (errno != EACCES) e(85);
 511         if (access("__x", W_OK) != -1) e(86);
 512         if (errno != EACCES) e(87);
 513         if (access("__x", X_OK) != 0) e(88);
 514         if (access("__x", R_OK | W_OK) != -1) e(89);
 515         if (errno != EACCES) e(90);
 516         if (access("__x", R_OK | X_OK) != -1) e(91);
 517         if (errno != EACCES) e(92);
 518         if (access("__x", W_OK | X_OK) != -1) e(93);
 519         if (errno != EACCES) e(94);
 520         if (access("__x", R_OK | W_OK | X_OK) != -1) e(95);
 521         if (errno != EACCES) e(96);
 522
 523         if (access("___", F_OK) != 0) e(97);
 524         if (access("___", R_OK) != -1) e(98);
 525         if (errno != EACCES) e(99);
 526         if (access("___", W_OK) != -1) e(100);
 527         if (errno != EACCES) e(101);
 528         if (access("___", X_OK) != -1) e(102);
 529         if (errno != EACCES) e(103);
 530         if (access("___", R_OK | W_OK) != -1) e(104);
 531         if (errno != EACCES) e(105);
 532         if (access("___", R_OK | X_OK) != -1) e(106);
 533         if (errno != EACCES) e(107);
 534         if (access("___", W_OK | X_OK) != -1) e(108);
 535         if (errno != EACCES) e(109);
 536         if (access("___", R_OK | W_OK | X_OK) != -1) e(110);
 537         if (errno != EACCES) e(111);
 538   }
 539   if (superuser) {
 540         /* Test root access don't test X_OK on [_r][_w]_ files. */
 541         if (access("rwx", F_OK) != 0) e(112);
 542         if (access("rwx", R_OK) != 0) e(113);
 543         if (access("rwx", W_OK) != 0) e(114);
 544         if (access("rwx", X_OK) != 0) e(115);
 545         if (access("rwx", R_OK | W_OK) != 0) e(116);
 546         if (access("rwx", R_OK | X_OK) != 0) e(117);
 547         if (access("rwx", W_OK | X_OK) != 0) e(118);
 548         if (access("rwx", R_OK | W_OK | X_OK) != 0) e(119);
 549
 550         if (access("rw_", F_OK) != 0) e(120);
 551         if (access("rw_", R_OK) != 0) e(121);
 552         if (access("rw_", W_OK) != 0) e(122);
 553         if (access("rw_", R_OK | W_OK) != 0) e(123);
 554
 555         if (access("r_x", F_OK) != 0) e(124);
 556         if (access("r_x", R_OK) != 0) e(125);
 557         if (access("r_x", W_OK) != 0) e(126);
 558         if (access("r_x", X_OK) != 0) e(127);
 559         if (access("r_x", R_OK | W_OK) != 0) e(128);
 560         if (access("r_x", R_OK | X_OK) != 0) e(129);
 561         if (access("r_x", W_OK | X_OK) != 0) e(130);
 562         if (access("r_x", R_OK | W_OK | X_OK) != 0) e(131);
 563
 564         if (access("r__", F_OK) != 0) e(132);
 565         if (access("r__", R_OK) != 0) e(133);
 566         if (access("r__", W_OK) != 0) e(134);
 567         if (access("r__", R_OK | W_OK) != 0) e(135);
 568
 569         if (access("_wx", F_OK) != 0) e(136);
 570         if (access("_wx", R_OK) != 0) e(137);
 571         if (access("_wx", W_OK) != 0) e(138);
 572         if (access("_wx", X_OK) != 0) e(139);
 573         if (access("_wx", R_OK | W_OK) != 0) e(140);
 574         if (access("_wx", R_OK | X_OK) != 0) e(141);
 575         if (access("_wx", W_OK | X_OK) != 0) e(142);
 576         if (access("_wx", R_OK | W_OK | X_OK) != 0) e(143);
 577
 578         if (access("_w_", F_OK) != 0) e(144);
 579         if (access("_w_", R_OK) != 0) e(145);
 580         if (access("_w_", W_OK) != 0) e(146);
 581         if (access("_w_", R_OK | W_OK) != 0) e(147);
 582
 583         if (access("__x", F_OK) != 0) e(148);
 584         if (access("__x", R_OK) != 0) e(149);
 585         if (access("__x", W_OK) != 0) e(150);
 586         if (access("__x", X_OK) != 0) e(151);
 587         if (access("__x", R_OK | W_OK) != 0) e(152);
 588         if (access("__x", R_OK | X_OK) != 0) e(153);
 589         if (access("__x", W_OK | X_OK) != 0) e(154);
 590         if (access("__x", R_OK | W_OK | X_OK) != 0) e(155);
 591
 592         if (access("___", F_OK) != 0) e(156);
 593         if (access("___", R_OK) != 0) e(157);
 594         if (access("___", W_OK) != 0) e(158);
 595         if (access("___", R_OK | W_OK) != 0) e(159);
 596   }
 597 }
 598
 599 void makelongnames()
 600 {
 601   register int i;
 602   int max_name_length;
 603
 604   max_name_length = name_max("."); /* Aka NAME_MAX, but not every FS supports
 605                                     * the same length, hence runtime check */
 606   MaxName = malloc(max_name_length + 1);
 607   ToLongName = malloc(max_name_length + 1 + 1); /* Name of maximum +1 length */
 608   memset(MaxName, 'a', max_name_length);
 609   MaxName[max_name_length] = '\0';
 610
 611   for (i = 0; i < PATH_MAX - 1; i++) {  /* idem path */
 612         MaxPath[i++] = '.';
 613         MaxPath[i] = '/';
 614   }
 615   MaxPath[PATH_MAX - 1] = '\0';
 616
 617   strcpy(ToLongName, MaxName);  /* copy them Max to ToLong */
 618   strcpy(ToLongPath, MaxPath);
 619
 620   ToLongName[max_name_length] = 'a';
 621   ToLongName[max_name_length+1] = '\0';/* extend ToLongName by one too many */
 622   ToLongPath[PATH_MAX - 1] = '/';
 623   ToLongPath[PATH_MAX] = '\0';  /* inc ToLongPath by one */
 624 }