posix/tst-gnuglob-skeleton.c

   1 /* Template for tests of the GNU extension GLOB_ALTDIRFUNC.
   2    Copyright (C) 2001-2022 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 /* To use this skeleton, the following macros need to be defined
  20    before inclusion of this file:
  21
  22    GLOB_FUNC      The glob function to test (glob or glob64)
  23    GLOB_TYPE      The glob type expected by the function (glob_t, glob64_t)
  24    GLOBFREE_FUNC  The corresponding deallocation function
  25    DIRENT_STRUCT  The struct tag of the dirent type
  26    STAT_STRUCT    The struct tag of the stat type
  27 */
  28
  29 #include <dirent.h>
  30 #include <errno.h>
  31 #include <error.h>
  32 #include <glob.h>
  33 #include <mcheck.h>
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <sys/stat.h>
  38 #include <support/test-driver.h>
  39
  40
  41 static struct
  42 {
  43   const char *name;
  44   int level;
  45   int type;
  46 } filesystem[] =
  47 {
  48   { ".", 1, DT_DIR },
  49   { "..", 1, DT_DIR },
  50   { "file1lev1", 1, DT_REG },
  51   { "file2lev1", 1, DT_UNKNOWN },
  52   { "dir1lev1", 1, DT_UNKNOWN },
  53     { ".", 2, DT_DIR },
  54     { "..", 2, DT_DIR },
  55     { "file1lev2", 2, DT_REG },
  56     { "dir1lev2", 2, DT_DIR },
  57       { ".", 3, DT_DIR },
  58       { "..", 3, DT_DIR },
  59     { "dir2lev2", 2, DT_DIR },
  60       { ".", 3, DT_DIR },
  61       { "..", 3, DT_DIR },
  62       { ".foo", 3, DT_REG },
  63       { "dir1lev3", 3, DT_DIR },
  64         { ".", 4, DT_DIR },
  65         { "..", 4, DT_DIR },
  66         { "file1lev4", 4, DT_REG },
  67       { "file1lev3", 3, DT_REG },
  68       { "file2lev3", 3, DT_REG },
  69     { "file2lev2", 2, DT_REG },
  70     { "file3lev2", 2, DT_REG },
  71     { "dir3lev2", 2, DT_DIR },
  72       { ".", 3, DT_DIR },
  73       { "..", 3, DT_DIR },
  74       { "file3lev3", 3, DT_REG },
  75       { "file4lev3", 3, DT_REG },
  76   { "dir2lev1", 1, DT_DIR },
  77     { ".", 2, DT_DIR },
  78     { "..", 2, DT_DIR },
  79     { "dir1lev2", 2, DT_UNKNOWN },
  80       { ".", 3, DT_DIR },
  81       { "..", 3, DT_DIR },
  82       { ".foo", 3, DT_REG },
  83       { ".dir", 3, DT_DIR },
  84         { ".", 4, DT_DIR },
  85         { "..", 4, DT_DIR },
  86         { "hidden", 4, DT_REG }
  87 };
  88 #define nfiles (sizeof (filesystem) / sizeof (filesystem[0]))
  89
  90
  91 typedef struct
  92 {
  93   int level;
  94   int idx;
  95   struct DIRENT_STRUCT d;
  96   char room_for_dirent[NAME_MAX];
  97 } my_DIR;
  98
  99
 100 static long int
 101 find_file (const char *s)
 102 {
 103   int level = 1;
 104   long int idx = 0;
 105
 106   while (s[0] == '/')
 107     {
 108       if (s[1] == '\0')
 109         {
 110           s = ".";
 111           break;
 112         }
 113       ++s;
 114     }
 115
 116   if (strcmp (s, ".") == 0)
 117     return 0;
 118
 119   if (s[0] == '.' && s[1] == '/')
 120     s += 2;
 121
 122   while (*s != '\0')
 123     {
 124       char *endp = strchrnul (s, '/');
 125
 126       if (test_verbose> 0)
 127         printf ("info: looking for %.*s, level %d\n",
 128                 (int) (endp - s), s, level);
 129
 130       while (idx < nfiles && filesystem[idx].level >= level)
 131         {
 132           if (filesystem[idx].level == level
 133               && memcmp (s, filesystem[idx].name, endp - s) == 0
 134               && filesystem[idx].name[endp - s] == '\0')
 135             break;
 136           ++idx;
 137         }
 138
 139       if (idx == nfiles || filesystem[idx].level < level)
 140         {
 141           errno = ENOENT;
 142           return -1;
 143         }
 144
 145       if (*endp == '\0')
 146         return idx + 1;
 147
 148       if (filesystem[idx].type != DT_DIR
 149           && (idx + 1 >= nfiles
 150               || filesystem[idx].level >= filesystem[idx + 1].level))
 151         {
 152           errno = ENOTDIR;
 153           return -1;
 154         }
 155
 156       ++idx;
 157
 158       s = endp + 1;
 159       ++level;
 160     }
 161
 162   errno = ENOENT;
 163   return -1;
 164 }
 165
 166
 167 static void *
 168 my_opendir (const char *s)
 169 {
 170   long int idx = find_file (s);
 171   my_DIR *dir;
 172
 173
 174   if (idx == -1 || filesystem[idx].type != DT_DIR)
 175     {
 176       if (test_verbose > 0)
 177         printf ("info: my_opendir(\"%s\") == NULL\n", s);
 178       return NULL;
 179     }
 180
 181   dir = (my_DIR *) malloc (sizeof (my_DIR));
 182   if (dir == NULL)
 183     error (EXIT_FAILURE, errno, "cannot allocate directory handle");
 184
 185   dir->level = filesystem[idx].level;
 186   dir->idx = idx;
 187
 188   if (test_verbose > 0)
 189     printf ("info: my_opendir(\"%s\") == { level: %d, idx: %ld }\n",
 190             s, filesystem[idx].level, idx);
 191
 192   return dir;
 193 }
 194
 195
 196 static struct DIRENT_STRUCT *
 197 my_readdir (void *gdir)
 198 {
 199   my_DIR *dir = gdir;
 200
 201   if (dir->idx == -1)
 202     {
 203       if (test_verbose > 0)
 204         printf ("info: my_readdir ({ level: %d, idx: %ld }) = NULL\n",
 205                 dir->level, (long int) dir->idx);
 206       return NULL;
 207     }
 208
 209   while (dir->idx < nfiles && filesystem[dir->idx].level > dir->level)
 210     ++dir->idx;
 211
 212   if (dir->idx == nfiles || filesystem[dir->idx].level < dir->level)
 213     {
 214       dir->idx = -1;
 215       if (test_verbose > 0)
 216         printf ("info: my_readdir ({ level: %d, idx: %ld }) = NULL\n",
 217                 dir->level, (long int) dir->idx);
 218       return NULL;
 219     }
 220
 221   dir->d.d_ino = 1;             /* glob should not skip this entry.  */
 222
 223   dir->d.d_type = filesystem[dir->idx].type;
 224
 225   strcpy (dir->d.d_name, filesystem[dir->idx].name);
 226
 227   if (test_verbose > 0)
 228     printf ("info: my_readdir ({ level: %d, idx: %ld })"
 229             " = { d_ino: %lld, d_type: %d, d_name: \"%s\" }\n",
 230             dir->level, (long int) dir->idx,
 231             (long long) dir->d.d_ino, dir->d.d_type,
 232             dir->d.d_name);
 233
 234   ++dir->idx;
 235
 236   return &dir->d;
 237 }
 238
 239
 240 static void
 241 my_closedir (void *dir)
 242 {
 243   if (test_verbose > 0)
 244     printf ("info: my_closedir ()\n");
 245   free (dir);
 246 }
 247
 248
 249 /* We use this function for lstat as well since we don't have any.  */
 250 static int
 251 my_stat (const char *name, struct STAT_STRUCT *st)
 252 {
 253   long int idx = find_file (name);
 254
 255   if (idx == -1)
 256     {
 257       if (test_verbose > 0)
 258         printf ("info: my_stat (\"%s\", ...) = -1 (%s)\n",
 259                 name, strerror (errno));
 260       return -1;
 261     }
 262
 263   memset (st, '\0', sizeof (*st));
 264
 265   if (filesystem[idx].type == DT_UNKNOWN)
 266     st->st_mode = DTTOIF (idx + 1 < nfiles
 267                           && filesystem[idx].level < filesystem[idx + 1].level
 268                           ? DT_DIR : DT_REG) | 0777;
 269   else
 270     st->st_mode = DTTOIF (filesystem[idx].type) | 0777;
 271
 272   if (test_verbose > 0)
 273     printf ("info: my_stat (\"%s\", { st_mode: %o }) = 0\n", name, st->st_mode);
 274
 275   return 0;
 276 }
 277
 278
 279 static const char *glob_errstring[] =
 280 {
 281   [GLOB_NOSPACE] = "out of memory",
 282   [GLOB_ABORTED] = "read error",
 283   [GLOB_NOMATCH] = "no matches found"
 284 };
 285 #define nglob_errstring (sizeof (glob_errstring) / sizeof (glob_errstring[0]))
 286
 287
 288 static const char *
 289 flagstr (int flags)
 290 {
 291   static const char *const strs[] =
 292   {
 293     "GLOB_ERR", "GLOB_MARK", "GLOB_NOSORT", "GLOB_DOOFSS", "GLOB_NOCHECK",
 294     "GLOB_APPEND", "GLOB_NOESCAPE", "GLOB_PERIOD", "GLOB_MAGCHAR",
 295     "GLOB_ALTDIRFUNC", "GLOB_BRACE", "GLOB_NOMAGIC", "GLOB_TILDE",
 296     "GLOB_ONLYDIR", "GLOB_TILDECHECK"
 297   };
 298 #define nstrs (sizeof (strs) / sizeof (strs[0]))
 299   static char buf[100];
 300   char *cp = buf;
 301   int cnt;
 302
 303   for (cnt = 0; cnt < nstrs; ++cnt)
 304     if (flags & (1 << cnt))
 305       {
 306         flags &= ~(1 << cnt);
 307         if (cp != buf)
 308           *cp++ = '|';
 309         cp = stpcpy (cp, strs[cnt]);
 310       }
 311
 312   if (flags != 0)
 313     {
 314       if (cp != buf)
 315         *cp++ = '|';
 316       sprintf (cp, "%#x", flags);
 317     }
 318
 319   return buf;
 320 #undef nstrs
 321 }
 322
 323
 324 static const char *
 325 errstr (int val)
 326 {
 327   static const char *const strs[] =
 328     {
 329       [GLOB_NOSPACE] = "GLOB_NOSPACE",
 330       [GLOB_ABORTED] = "GLOB_ABORTED",
 331       [GLOB_NOMATCH] = "GLOB_NOMATCH",
 332       [GLOB_NOSYS] = "GLOB_NOSYS"
 333     };
 334 #define nstrs (sizeof (strs) / sizeof (strs[0]))
 335   static char buf[100];
 336   if (val < 0 || val >= nstrs || strs[val] == NULL)
 337     {
 338       snprintf (buf, sizeof (buf), "GLOB_??? (%d)", val);
 339       return buf;
 340     }
 341   return strs[val];
 342 #undef nstrs
 343 }
 344
 345
 346 static int
 347 test_result (const char *fmt, int flags, GLOB_TYPE *gl, const char *str[])
 348 {
 349   size_t cnt;
 350   int result = 0;
 351
 352   printf ("results for glob (\"%s\", %s)\n", fmt, flagstr (flags));
 353   for (cnt = 0; cnt < gl->gl_pathc && str[cnt] != NULL; ++cnt)
 354     {
 355       int ok = strcmp (gl->gl_pathv[cnt], str[cnt]) == 0;
 356       const char *errstr = "";
 357
 358       if (! ok)
 359         {
 360           size_t inner;
 361
 362           for (inner = 0; str[inner] != NULL; ++inner)
 363             if (strcmp (gl->gl_pathv[cnt], str[inner]) == 0)
 364               break;
 365
 366           if (str[inner] == NULL)
 367             errstr = ok ? "" : " *** WRONG";
 368           else
 369             errstr = ok ? "" : " * wrong position";
 370
 371           result = 1;
 372         }
 373
 374       printf ("  %s%s\n", gl->gl_pathv[cnt], errstr);
 375     }
 376   puts ("");
 377
 378   if (str[cnt] != NULL || cnt < gl->gl_pathc)
 379     {
 380       puts ("  *** incorrect number of entries");
 381       result = 1;
 382     }
 383
 384   return result;
 385 }
 386
 387
 388 static int
 389 do_test (void)
 390 {
 391   GLOB_TYPE gl;
 392   int errval;
 393   int result = 0;
 394   const char *fmt;
 395   int flags;
 396
 397   mtrace ();
 398
 399   memset (&gl, '\0', sizeof (gl));
 400
 401   gl.gl_closedir = my_closedir;
 402   gl.gl_readdir = my_readdir;
 403   gl.gl_opendir = my_opendir;
 404   gl.gl_lstat = my_stat;
 405   gl.gl_stat = my_stat;
 406
 407 #define test(a, b, r, c...) \
 408   fmt = a;                                                                    \
 409   flags = GLOB_ALTDIRFUNC | b;                                                \
 410   errval = GLOB_FUNC (fmt, flags, NULL, &gl);                                 \
 411   if (errval != r)                                                            \
 412     {                                                                         \
 413       if (r == 0)                                                             \
 414         printf ("glob (\"%s\", %s) failed: %s\n", fmt, flagstr (flags),       \
 415                 errval >= 0 && errval < nglob_errstring                       \
 416                 ? glob_errstring[errval] : "???");                            \
 417       else                                                                    \
 418         printf ("glob (\"%s\", %s) did not fail\n", fmt, flagstr (flags));    \
 419       result = 1;                                                             \
 420     }                                                                         \
 421   else if (r == 0)                                                            \
 422     result |= test_result (fmt, flags, &gl, (const char *[]) { c, NULL });    \
 423   else                                                                        \
 424     printf ("result for glob (\"%s\", %s) = %s\n\n", fmt, flagstr (flags),    \
 425             errstr (errval))
 426
 427   test ("*/*/*", 0, 0,
 428         "dir1lev1/dir2lev2/dir1lev3",
 429         "dir1lev1/dir2lev2/file1lev3",
 430         "dir1lev1/dir2lev2/file2lev3",
 431         "dir1lev1/dir3lev2/file3lev3",
 432         "dir1lev1/dir3lev2/file4lev3");
 433
 434   test ("*/*/*", GLOB_PERIOD, 0,
 435         "dir1lev1/dir1lev2/.",
 436         "dir1lev1/dir1lev2/..",
 437         "dir1lev1/dir2lev2/.",
 438         "dir1lev1/dir2lev2/..",
 439         "dir1lev1/dir2lev2/.foo",
 440         "dir1lev1/dir2lev2/dir1lev3",
 441         "dir1lev1/dir2lev2/file1lev3",
 442         "dir1lev1/dir2lev2/file2lev3",
 443         "dir1lev1/dir3lev2/.",
 444         "dir1lev1/dir3lev2/..",
 445         "dir1lev1/dir3lev2/file3lev3",
 446         "dir1lev1/dir3lev2/file4lev3",
 447         "dir2lev1/dir1lev2/.",
 448         "dir2lev1/dir1lev2/..",
 449         "dir2lev1/dir1lev2/.dir",
 450         "dir2lev1/dir1lev2/.foo");
 451
 452   test ("*/*/.*", 0, 0,
 453         "dir1lev1/dir1lev2/.",
 454         "dir1lev1/dir1lev2/..",
 455         "dir1lev1/dir2lev2/.",
 456         "dir1lev1/dir2lev2/..",
 457         "dir1lev1/dir2lev2/.foo",
 458         "dir1lev1/dir3lev2/.",
 459         "dir1lev1/dir3lev2/..",
 460         "dir2lev1/dir1lev2/.",
 461         "dir2lev1/dir1lev2/..",
 462         "dir2lev1/dir1lev2/.dir",
 463         "dir2lev1/dir1lev2/.foo");
 464
 465   test ("*1*/*2*/.*", 0, 0,
 466         "dir1lev1/dir1lev2/.",
 467         "dir1lev1/dir1lev2/..",
 468         "dir1lev1/dir2lev2/.",
 469         "dir1lev1/dir2lev2/..",
 470         "dir1lev1/dir2lev2/.foo",
 471         "dir1lev1/dir3lev2/.",
 472         "dir1lev1/dir3lev2/..",
 473         "dir2lev1/dir1lev2/.",
 474         "dir2lev1/dir1lev2/..",
 475         "dir2lev1/dir1lev2/.dir",
 476         "dir2lev1/dir1lev2/.foo");
 477
 478   test ("*1*/*1*/.*", 0, 0,
 479         "dir1lev1/dir1lev2/.",
 480         "dir1lev1/dir1lev2/..",
 481         "dir2lev1/dir1lev2/.",
 482         "dir2lev1/dir1lev2/..",
 483         "dir2lev1/dir1lev2/.dir",
 484         "dir2lev1/dir1lev2/.foo");
 485
 486   test ("\\/*", 0, 0,
 487         "/dir1lev1",
 488         "/dir2lev1",
 489         "/file1lev1",
 490         "/file2lev1");
 491
 492   test ("*/*/", 0 , 0,
 493         "dir1lev1/dir1lev2/",
 494         "dir1lev1/dir2lev2/",
 495         "dir1lev1/dir3lev2/",
 496         "dir2lev1/dir1lev2/");
 497
 498   test ("", 0, GLOB_NOMATCH, NULL);
 499
 500   test ("", GLOB_NOCHECK, 0, "");
 501
 502   GLOBFREE_FUNC (&gl);
 503
 504   return result;
 505 }
 506
 507 #include <support/test-driver.c>