login/tst-utmp.c

   1 /* Tests for UTMP functions.
   2    Copyright (C) 1998, 2001-2003 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1998.
   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, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #include <errno.h>
  22 #include <error.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <sys/types.h>
  26 #include <time.h>
  27
  28 #ifdef UTMPX
  29 # include <utmpx.h>
  30 # define utmp utmpx
  31 # define utmpname utmpxname
  32 # define setutent setutxent
  33 # define getutent getutxent
  34 # define endutent endutxent
  35 # define getutline getutxline
  36 # define getutid getutxid
  37 # define pututline pututxline
  38 #else
  39 # include <utmp.h>
  40 #endif
  41
  42
  43 #if _HAVE_UT_TYPE || defined UTMPX
  44
  45 /* Prototype for our test function.  */
  46 static int do_test (int argc, char *argv[]);
  47
  48 /* We have a preparation function.  */
  49 static void do_prepare (int argc, char *argv[]);
  50 #define PREPARE do_prepare
  51
  52 /* This defines the `main' function and some more.  */
  53 #include <test-skeleton.c>
  54
  55
  56 /* These are for the temporary file we generate.  */
  57 char *name;
  58 int fd;
  59
  60 static void
  61 do_prepare (int argc, char *argv[])
  62 {
  63   size_t name_len;
  64
  65   name_len = strlen (test_dir);
  66   name = malloc (name_len + sizeof ("/utmpXXXXXX"));
  67   mempcpy (mempcpy (name, test_dir, name_len),
  68            "/utmpXXXXXX", sizeof ("/utmpXXXXXX"));
  69   add_temp_file (name);
  70
  71   /* Open our test file.  */
  72   fd = mkstemp (name);
  73   if (fd == -1)
  74     error (EXIT_FAILURE, errno, "cannot open test file `%s'", name);
  75 }
  76
  77 struct utmp entry[] =
  78 {
  79 #if _HAVE_UT_TV || defined UTMPX
  80 #define UT(a)  .ut_tv = { .tv_sec = (a)}
  81 #else
  82 #define UT(a)  .ut_time = (a)
  83 #endif
  84
  85   { .ut_type = BOOT_TIME, .ut_pid = 1, UT(1000) },
  86   { .ut_type = RUN_LVL, .ut_pid = 1, UT(2000) },
  87   { .ut_type = INIT_PROCESS, .ut_pid = 5, .ut_id = "si", UT(3000) },
  88   { .ut_type = LOGIN_PROCESS, .ut_pid = 23, .ut_line = "tty1", .ut_id = "1",
  89     .ut_user = "LOGIN", UT(4000) },
  90   { .ut_type = USER_PROCESS, .ut_pid = 24, .ut_line = "tty2", .ut_id = "2",
  91     .ut_user = "albert", UT(8000) },
  92   { .ut_type = USER_PROCESS, .ut_pid = 196, .ut_line = "ttyp0", .ut_id = "p0",
  93     .ut_user = "niels", UT(10000) },
  94   { .ut_type = DEAD_PROCESS, .ut_line = "ttyp1", .ut_id = "p1", UT(16000) },
  95   { .ut_type = EMPTY },
  96   { .ut_type = EMPTY }
  97 };
  98 int num_entries = sizeof entry / sizeof (struct utmp);
  99
 100 time_t entry_time = 20000;
 101 pid_t entry_pid = 234;
 102
 103 static int
 104 do_init (void)
 105 {
 106   int n;
 107
 108   setutent ();
 109
 110   for (n = 0; n < num_entries; n++)
 111     {
 112       if (pututline (&entry[n]) == NULL)
 113         {
 114           error (0, errno, "cannot write UTMP entry");
 115           return 1;
 116         }
 117     }
 118
 119   endutent ();
 120
 121   return 0;
 122 }
 123
 124
 125 static int
 126 do_check (void)
 127 {
 128   struct utmp *ut;
 129   int n;
 130
 131   setutent ();
 132
 133   n = 0;
 134   while ((ut = getutent ()))
 135     {
 136       if (n < num_entries &&
 137           memcmp (ut, &entry[n], sizeof (struct utmp)))
 138         {
 139           error (0, 0, "UTMP entry does not match");
 140           return 1;
 141         }
 142
 143       n++;
 144     }
 145
 146   if (n != num_entries)
 147     {
 148       error (0, 0, "number of UTMP entries is incorrect");
 149       return 1;
 150     }
 151
 152   endutent ();
 153
 154   return 0;
 155 }
 156
 157 static int
 158 simulate_login (const char *line, const char *user)
 159 {
 160   int n;
 161
 162   for (n = 0; n < num_entries; n++)
 163     {
 164       if (strcmp (line, entry[n].ut_line) == 0 ||
 165           entry[n].ut_type == DEAD_PROCESS)
 166         {
 167           if (entry[n].ut_pid == DEAD_PROCESS)
 168             entry[n].ut_pid = (entry_pid += 27);
 169           entry[n].ut_type = USER_PROCESS;
 170           strncpy (entry[n].ut_user, user, sizeof (entry[n].ut_user));
 171 #if _HAVE_UT_TV - 0 || defined UTMPX
 172           entry[n].ut_tv.tv_sec = (entry_time += 1000);
 173 #else
 174           entry[n].ut_time = (entry_time += 1000);
 175 #endif
 176           setutent ();
 177
 178           if (pututline (&entry[n]) == NULL)
 179             {
 180               error (0, errno, "cannot write UTMP entry");
 181               return 1;
 182             }
 183
 184           endutent ();
 185
 186           return 0;
 187         }
 188     }
 189
 190   error (0, 0, "no entries available");
 191   return 1;
 192 }
 193
 194 static int
 195 simulate_logout (const char *line)
 196 {
 197   int n;
 198
 199   for (n = 0; n < num_entries; n++)
 200     {
 201       if (strcmp (line, entry[n].ut_line) == 0)
 202         {
 203           entry[n].ut_type = DEAD_PROCESS;
 204           strncpy (entry[n].ut_user, "", sizeof (entry[n].ut_user));
 205 #if _HAVE_UT_TV - 0 || defined UTMPX
 206           entry[n].ut_tv.tv_sec = (entry_time += 1000);
 207 #else
 208           entry[n].ut_time = (entry_time += 1000);
 209 #endif
 210           setutent ();
 211
 212           if (pututline (&entry[n]) == NULL)
 213             {
 214               error (0, errno, "cannot write UTMP entry");
 215               return 1;
 216             }
 217
 218           endutent ();
 219
 220           return 0;
 221         }
 222     }
 223
 224   error (0, 0, "no entry found for `%s'", line);
 225   return 1;
 226 }
 227
 228 static int
 229 check_login (const char *line)
 230 {
 231   struct utmp *up;
 232   struct utmp ut;
 233   int n;
 234
 235   setutent ();
 236
 237   strcpy (ut.ut_line, line);
 238   up = getutline (&ut);
 239   if (up == NULL)
 240     {
 241       error (0, errno, "cannot get entry for line `%s'", line);
 242       return 1;
 243     }
 244
 245   endutent ();
 246
 247   for (n = 0; n < num_entries; n++)
 248     {
 249       if (strcmp (line, entry[n].ut_line) == 0)
 250         {
 251           if (memcmp (up, &entry[n], sizeof (struct utmp)))
 252             {
 253               error (0, 0, "UTMP entry does not match");
 254               return 1;
 255             }
 256
 257           return 0;
 258         }
 259     }
 260
 261   error (0, 0, "bogus entry for line `%s'", line);
 262   return 1;
 263 }
 264
 265 static int
 266 check_logout (const char *line)
 267 {
 268   struct utmp ut;
 269
 270   setutent ();
 271
 272   strcpy (ut.ut_line, line);
 273   if (getutline (&ut) != NULL)
 274     {
 275       error (0, 0, "bogus login entry for `%s'", line);
 276       return 1;
 277     }
 278
 279   endutent ();
 280
 281   return 0;
 282 }
 283
 284 static int
 285 check_id (const char *id)
 286 {
 287   struct utmp *up;
 288   struct utmp ut;
 289   int n;
 290
 291   setutent ();
 292
 293   ut.ut_type = USER_PROCESS;
 294   strcpy (ut.ut_id, id);
 295   up = getutid (&ut);
 296   if (up == NULL)
 297     {
 298       error (0, errno, "cannot get entry for ID `%s'", id);
 299       return 1;
 300     }
 301
 302   endutent ();
 303
 304   for (n = 0; n < num_entries; n++)
 305     {
 306       if (strcmp (id, entry[n].ut_id) == 0)
 307         {
 308           if (memcmp (up, &entry[n], sizeof (struct utmp)))
 309             {
 310               error (0, 0, "UTMP entry does not match");
 311               return 1;
 312             }
 313
 314           return 0;
 315         }
 316     }
 317
 318   error (0, 0, "bogus entry for ID `%s'", id);
 319   return 1;
 320 }
 321
 322 static int
 323 check_type (int type)
 324 {
 325   struct utmp *up;
 326   struct utmp ut;
 327   int n;
 328
 329   setutent ();
 330
 331   ut.ut_type = type;
 332   up = getutid (&ut);
 333   if (up == NULL)
 334     {
 335       error (0, errno, "cannot get entry for type `%d'", type);
 336       return 1;
 337     }
 338
 339   endutent ();
 340
 341   for (n = 0; n < num_entries; n++)
 342     {
 343       if (type == entry[n].ut_type)
 344         {
 345           if (memcmp (up, &entry[n], sizeof (struct utmp)))
 346             {
 347               error (0, 0, "UTMP entry does not match");
 348               return 1;
 349             }
 350
 351           return 0;
 352         }
 353     }
 354
 355   error (0, 0, "bogus entry for type `%d'", type);
 356   return 1;
 357 }
 358
 359 static int
 360 do_test (int argc, char *argv[])
 361 {
 362   int result = 0;
 363
 364   utmpname (name);
 365
 366   result |= do_init ();
 367   result |= do_check ();
 368
 369   result |= simulate_login ("tty1", "erwin");
 370   result |= do_check ();
 371
 372   result |= simulate_login ("ttyp1", "paul");
 373   result |= do_check ();
 374
 375   result |= simulate_logout ("tty2");
 376   result |= do_check ();
 377
 378   result |= simulate_logout ("ttyp0");
 379   result |= do_check ();
 380
 381   result |= simulate_login ("ttyp2", "richard");
 382   result |= do_check ();
 383
 384   result |= check_login ("tty1");
 385   result |= check_logout ("ttyp0");
 386   result |= check_id ("p1");
 387   result |= check_id ("2");
 388   result |= check_id ("si");
 389   result |= check_type (BOOT_TIME);
 390   result |= check_type (RUN_LVL);
 391
 392   return result;
 393 }
 394
 395 #else
 396
 397 /* No field 'ut_type' in struct utmp.  */
 398 int
 399 main ()
 400 {
 401   return 0;
 402 }
 403
 404 #endif