posix/tst-gnuglob-skeleton.c

   1 /* Template for tests of the GNU extension GLOB_ALTDIRFUNC.
   2    Copyright (C) 2001-2018 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 /* To use this skeleton, the following macros need to be defined
  21    before inclusion of this file:
  22
  23    GLOB_FUNC      The glob function to test (glob or glob64)
  24    GLOB_TYPE      The glob type expected by the function (glob_t, glob64_t)
  25    GLOBFREE_FUNC  The corresponding deallocation function
  26    DIRENT_STRUCT  The struct tag of the dirent type
  27    STAT_STRUCT    The struct tag of the stat type
  28 */
  29
  30 #include <dirent.h>
  31 #include <errno.h>
  32 #include <error.h>
  33 #include <glob.h>
  34 #include <mcheck.h>
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <string.h>
  38 #include <sys/stat.h>
  39 #include <support/test-driver.h>
  40
  41
  42 static struct
  43 {
  44   const char *name;
  45   int level;
  46   int type;
  47 } filesystem[] =
  48 {
  49   { ".", 1, DT_DIR },
  50   { "..", 1, DT_DIR },
  51   { "file1lev1", 1, DT_REG },
  52   { "file2lev1", 1, DT_UNKNOWN },
  53   { "dir1lev1", 1, DT_UNKNOWN },
  54     { ".", 2, DT_DIR },
  55     { "..", 2, DT_DIR },
  56     { "file1lev2", 2, DT_REG },
  57     { "dir1lev2", 2, DT_DIR },
  58       { ".", 3, DT_DIR },
  59       { "..", 3, DT_DIR },
  60     { "dir2lev2", 2, DT_DIR },
  61       { ".", 3, DT_DIR },
  62       { "..", 3, DT_DIR },
  63       { ".foo", 3, DT_REG },
  64       { "dir1lev3", 3, DT_DIR },
  65         { ".", 4, DT_DIR },
  66         { "..", 4, DT_DIR },
  67         { "file1lev4", 4, DT_REG },
  68       { "file1lev3", 3, DT_REG },
  69       { "file2lev3", 3, DT_REG },
  70     { "file2lev2", 2, DT_REG },
  71     { "file3lev2", 2, DT_REG },
  72     { "dir3lev2", 2, DT_DIR },
  73       { ".", 3, DT_DIR },
  74       { "..", 3, DT_DIR },
  75       { "file3lev3", 3, DT_REG },
  76       { "file4lev3", 3, DT_REG },
  77   { "dir2lev1", 1, DT_DIR },
  78     { ".", 2, DT_DIR },
  79     { "..", 2, DT_DIR },
  80     { "dir1lev2", 2, DT_UNKNOWN },
  81       { ".", 3, DT_DIR },
  82       { "..", 3, DT_DIR },
  83       { ".foo", 3, DT_REG },
  84       { ".dir", 3, DT_DIR },
  85         { ".", 4, DT_DIR },
  86         { "..", 4, DT_DIR },
  87         { "hidden", 4, DT_REG }
  88 };
  89 #define nfiles (sizeof (filesystem) / sizeof (filesystem[0]))
  90
  91
  92 typedef struct
  93 {
  94   int level;
  95   int idx;
  96   struct DIRENT_STRUCT d;
  97   char room_for_dirent[NAME_MAX];
  98 } my_DIR;
  99
 100
 101 static long int
 102 find_file (const char *s)
 103 {
 104   int level = 1;
 105   long int idx = 0;
 106
 107   while (s[0] == '/')
 108     {
 109       if (s[1] == '\0')
 110         {
 111           s = ".";
 112           break;
 113         }
 114       ++s;
 115     }
 116
 117   if (strcmp (s, ".") == 0)
 118     return 0;
 119
 120   if (s[0] == '.' && s[1] == '/')
 121     s += 2;
 122
 123   while (*s != '\0')
 124     {
 125       char *endp = strchrnul (s, '/');
 126
 127       if (test_verbose> 0)
 128         printf ("info: looking for %.*s, level %d\n",
 129                 (int) (endp - s), s, level);
 130
 131       while (idx < nfiles && filesystem[idx].level >= level)
 132         {
 133           if (filesystem[idx].level == level
 134               && memcmp (s, filesystem[idx].name, endp - s) == 0
 135               && filesystem[idx].name[endp - s] == '\0')
 136             break;
 137           ++idx;
 138         }
 139
 140       if (idx == nfiles || filesystem[idx].level < level)
 141         {
 142           errno = ENOENT;
 143           return -1;
 144         }
 145
 146       if (*endp == '\0')
 147         return idx + 1;
 148
 149       if (filesystem[idx].type != DT_DIR
 150           && (idx + 1 >= nfiles
 151               || filesystem[idx].level >= filesystem[idx + 1].level))
 152         {
 153           errno = ENOTDIR;
 154           return -1;
 155         }
 156
 157       ++idx;
 158
 159       s = endp + 1;
 160       ++level;
 161     }
 162
 163   errno = ENOENT;
 164   return -1;
 165 }
 166
 167
 168 static void *
 169 my_opendir (const char *s)
 170 {
 171   long int idx = find_file (s);
 172   my_DIR *dir;
 173
 174
 175   if (idx == -1 || filesystem[idx].type != DT_DIR)
 176     {
 177       if (test_verbose > 0)
 178         printf ("info: my_opendir(\"%s\") == NULL\n", s);
 179       return NULL;
 180     }
 181
 182   dir = (my_DIR *) malloc (sizeof (my_DIR));
 183   if (dir == NULL)
 184     error (EXIT_FAILURE, errno, "cannot allocate directory handle");
 185
 186   dir->level = filesystem[idx].level;
 187   dir->idx = idx;
 188
 189   if (test_verbose > 0)
 190     printf ("info: my_opendir(\"%s\") == { level: %d, idx: %ld }\n",
 191             s, filesystem[idx].level, idx);
 192
 193   return dir;
 194 }
 195
 196
 197 static struct DIRENT_STRUCT *
 198 my_readdir (void *gdir)
 199 {
 200   my_DIR *dir = gdir;
 201
 202   if (dir->idx == -1)
 203     {
 204       if (test_verbose > 0)
 205         printf ("info: my_readdir ({ level: %d, idx: %ld }) = NULL\n",
 206                 dir->level, (long int) dir->idx);
 207       return NULL;
 208     }
 209
 210   while (dir->idx < nfiles && filesystem[dir->idx].level > dir->level)
 211     ++dir->idx;
 212
 213   if (dir->idx == nfiles || filesystem[dir->idx].level < dir->level)
 214     {
 215       dir->idx = -1;
 216       if (test_verbose > 0)
 217         printf ("info: my_readdir ({ level: %d, idx: %ld }) = NULL\n",
 218                 dir->level, (long int) dir->idx);
 219       return NULL;
 220     }
 221
 222   dir->d.d_ino = 1;             /* glob should not skip this entry.  */
 223
 224   dir->d.d_type = filesystem[dir->idx].type;
 225
 226   strcpy (dir->d.d_name, filesystem[dir->idx].name);
 227
 228   if (test_verbose > 0)
 229     printf ("info: my_readdir ({ level: %d, idx: %ld })"
 230             " = { d_ino: %lld, d_type: %d, d_name: \"%s\" }\n",
 231             dir->level, (long int) dir->idx,
 232             (long long) dir->d.d_ino, dir->d.d_type,
 233             dir->d.d_name);
 234
 235   ++dir->idx;
 236
 237   return &dir->d;
 238 }
 239
 240
 241 static void
 242 my_closedir (void *dir)
 243 {
 244   if (test_verbose > 0)
 245     printf ("info: my_closedir ()\n");
 246   free (dir);
 247 }
 248
 249
 250 /* We use this function for lstat as well since we don't have any.  */
 251 static int
 252 my_stat (const char *name, struct STAT_STRUCT *st)
 253 {
 254   long int idx = find_file (name);
 255
 256   if (idx == -1)
 257     {
 258       if (test_verbose > 0)
 259         printf ("info: my_stat (\"%s\", ...) = -1 (%s)\n",
 260                 name, strerror (errno));
 261       return -1;
 262     }
 263
 264   memset (st, '\0', sizeof (*st));
 265
 266   if (filesystem[idx].type == DT_UNKNOWN)
 267     st->st_mode = DTTOIF (idx + 1 < nfiles
 268                           && filesystem[idx].level < filesystem[idx + 1].level
 269                           ? DT_DIR : DT_REG) | 0777;
 270   else
 271     st->st_mode = DTTOIF (filesystem[idx].type) | 0777;
 272
 273   if (test_verbose > 0)
 274     printf ("info: my_stat (\"%s\", { st_mode: %o }) = 0\n", name, st->st_mode);
 275
 276   return 0;
 277 }
 278
 279
 280 static const char *glob_errstring[] =
 281 {
 282   [GLOB_NOSPACE] = "out of memory",
 283   [GLOB_ABORTED] = "read error",
 284   [GLOB_NOMATCH] = "no matches found"
 285 };
 286 #define nglob_errstring (sizeof (glob_errstring) / sizeof (glob_errstring[0]))
 287
 288
 289 static const char *
 290 flagstr (int flags)
 291 {
 292   static const char *const strs[] =
 293   {
 294     "GLOB_ERR", "GLOB_MARK", "GLOB_NOSORT", "GLOB_DOOFSS", "GLOB_NOCHECK",
 295     "GLOB_APPEND", "GLOB_NOESCAPE", "GLOB_PERIOD", "GLOB_MAGCHAR",
 296     "GLOB_ALTDIRFUNC", "GLOB_BRACE", "GLOB_NOMAGIC", "GLOB_TILDE",
 297     "GLOB_ONLYDIR", "GLOB_TILDECHECK"
 298   };
 299 #define nstrs (sizeof (strs) / sizeof (strs[0]))
 300   static char buf[100];
 301   char *cp = buf;
 302   int cnt;
 303
 304   for (cnt = 0; cnt < nstrs; ++cnt)
 305     if (flags & (1 << cnt))
 306       {
 307         flags &= ~(1 << cnt);
 308         if (cp != buf)
 309           *cp++ = '|';
 310         cp = stpcpy (cp, strs[cnt]);
 311       }
 312
 313   if (flags != 0)
 314     {
 315       if (cp != buf)
 316         *cp++ = '|';
 317       sprintf (cp, "%#x", flags);
 318     }
 319
 320   return buf;
 321 #undef nstrs
 322 }
 323
 324
 325 static const char *
 326 errstr (int val)
 327 {
 328   static const char *const strs[] =
 329     {
 330       [GLOB_NOSPACE] = "GLOB_NOSPACE",
 331       [GLOB_ABORTED] = "GLOB_ABORTED",
 332       [GLOB_NOMATCH] = "GLOB_NOMATCH",
 333       [GLOB_NOSYS] = "GLOB_NOSYS"
 334     };
 335 #define nstrs (sizeof (strs) / sizeof (strs[0]))
 336   static char buf[100];
 337   if (val < 0 || val >= nstrs || strs[val] == NULL)
 338     {
 339       snprintf (buf, sizeof (buf), "GLOB_??? (%d)", val);
 340       return buf;
 341     }
 342   return strs[val];
 343 #undef nstrs
 344 }
 345
 346
 347 static int
 348 test_result (const char *fmt, int flags, GLOB_TYPE *gl, const char *str[])
 349 {
 350   size_t cnt;
 351   int result = 0;
 352
 353   printf ("results for glob (\"%s\", %s)\n", fmt, flagstr (flags));
 354   for (cnt = 0; cnt < gl->gl_pathc && str[cnt] != NULL; ++cnt)
 355     {
 356       int ok = strcmp (gl->gl_pathv[cnt], str[cnt]) == 0;
 357       const char *errstr = "";
 358
 359       if (! ok)
 360         {
 361           size_t inner;
 362
 363           for (inner = 0; str[inner] != NULL; ++inner)
 364             if (strcmp (gl->gl_pathv[cnt], str[inner]) == 0)
 365               break;
 366
 367           if (str[inner] == NULL)
 368             errstr = ok ? "" : " *** WRONG";
 369           else
 370             errstr = ok ? "" : " * wrong position";
 371
 372           result = 1;
 373         }
 374
 375       printf ("  %s%s\n", gl->gl_pathv[cnt], errstr);
 376     }
 377   puts ("");
 378
 379   if (str[cnt] != NULL || cnt < gl->gl_pathc)
 380     {
 381       puts ("  *** incorrect number of entries");
 382       result = 1;
 383     }
 384
 385   return result;
 386 }
 387
 388
 389 static int
 390 do_test (void)
 391 {
 392   GLOB_TYPE gl;
 393   int errval;
 394   int result = 0;
 395   const char *fmt;
 396   int flags;
 397
 398   mtrace ();
 399
 400   memset (&gl, '\0', sizeof (gl));
 401
 402   gl.gl_closedir = my_closedir;
 403   gl.gl_readdir = my_readdir;
 404   gl.gl_opendir = my_opendir;
 405   gl.gl_lstat = my_stat;
 406   gl.gl_stat = my_stat;
 407
 408 #define test(a, b, r, c...) \
 409   fmt = a;                                                                    \
 410   flags = GLOB_ALTDIRFUNC | b;                                                \
 411   errval = GLOB_FUNC (fmt, flags, NULL, &gl);                                 \
 412   if (errval != r)                                                            \
 413     {                                                                         \
 414       if (r == 0)                                                             \
 415         printf ("glob (\"%s\", %s) failed: %s\n", fmt, flagstr (flags),       \
 416                 errval >= 0 && errval < nglob_errstring                       \
 417                 ? glob_errstring[errval] : "???");                            \
 418       else                                                                    \
 419         printf ("glob (\"%s\", %s) did not fail\n", fmt, flagstr (flags));    \
 420       result = 1;                                                             \
 421     }                                                                         \
 422   else if (r == 0)                                                            \
 423     result |= test_result (fmt, flags, &gl, (const char *[]) { c, NULL });    \
 424   else                                                                        \
 425     printf ("result for glob (\"%s\", %s) = %s\n\n", fmt, flagstr (flags),    \
 426             errstr (errval))
 427
 428   test ("*/*/*", 0, 0,
 429         "dir1lev1/dir2lev2/dir1lev3",
 430         "dir1lev1/dir2lev2/file1lev3",
 431         "dir1lev1/dir2lev2/file2lev3",
 432         "dir1lev1/dir3lev2/file3lev3",
 433         "dir1lev1/dir3lev2/file4lev3");
 434
 435   test ("*/*/*", GLOB_PERIOD, 0,
 436         "dir1lev1/dir1lev2/.",
 437         "dir1lev1/dir1lev2/..",
 438         "dir1lev1/dir2lev2/.",
 439         "dir1lev1/dir2lev2/..",
 440         "dir1lev1/dir2lev2/.foo",
 441         "dir1lev1/dir2lev2/dir1lev3",
 442         "dir1lev1/dir2lev2/file1lev3",
 443         "dir1lev1/dir2lev2/file2lev3",
 444         "dir1lev1/dir3lev2/.",
 445         "dir1lev1/dir3lev2/..",
 446         "dir1lev1/dir3lev2/file3lev3",
 447         "dir1lev1/dir3lev2/file4lev3",
 448         "dir2lev1/dir1lev2/.",
 449         "dir2lev1/dir1lev2/..",
 450         "dir2lev1/dir1lev2/.dir",
 451         "dir2lev1/dir1lev2/.foo");
 452
 453   test ("*/*/.*", 0, 0,
 454         "dir1lev1/dir1lev2/.",
 455         "dir1lev1/dir1lev2/..",
 456         "dir1lev1/dir2lev2/.",
 457         "dir1lev1/dir2lev2/..",
 458         "dir1lev1/dir2lev2/.foo",
 459         "dir1lev1/dir3lev2/.",
 460         "dir1lev1/dir3lev2/..",
 461         "dir2lev1/dir1lev2/.",
 462         "dir2lev1/dir1lev2/..",
 463         "dir2lev1/dir1lev2/.dir",
 464         "dir2lev1/dir1lev2/.foo");
 465
 466   test ("*1*/*2*/.*", 0, 0,
 467         "dir1lev1/dir1lev2/.",
 468         "dir1lev1/dir1lev2/..",
 469         "dir1lev1/dir2lev2/.",
 470         "dir1lev1/dir2lev2/..",
 471         "dir1lev1/dir2lev2/.foo",
 472         "dir1lev1/dir3lev2/.",
 473         "dir1lev1/dir3lev2/..",
 474         "dir2lev1/dir1lev2/.",
 475         "dir2lev1/dir1lev2/..",
 476         "dir2lev1/dir1lev2/.dir",
 477         "dir2lev1/dir1lev2/.foo");
 478
 479   test ("*1*/*1*/.*", 0, 0,
 480         "dir1lev1/dir1lev2/.",
 481         "dir1lev1/dir1lev2/..",
 482         "dir2lev1/dir1lev2/.",
 483         "dir2lev1/dir1lev2/..",
 484         "dir2lev1/dir1lev2/.dir",
 485         "dir2lev1/dir1lev2/.foo");
 486
 487   test ("\\/*", 0, 0,
 488         "/dir1lev1",
 489         "/dir2lev1",
 490         "/file1lev1",
 491         "/file2lev1");
 492
 493   test ("*/*/", 0 , 0,
 494         "dir1lev1/dir1lev2/",
 495         "dir1lev1/dir2lev2/",
 496         "dir1lev1/dir3lev2/",
 497         "dir2lev1/dir1lev2/");
 498
 499   test ("", 0, GLOB_NOMATCH, NULL);
 500
 501   test ("", GLOB_NOCHECK, 0, "");
 502
 503   GLOBFREE_FUNC (&gl);
 504
 505   return result;
 506 }
 507
 508 #include <support/test-driver.c>