src/locktest.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2000-2003 Silicon Graphics, Inc.
   4  * All Rights Reserved.
   5  */
   6
   7 /*
   8  * Synchronized byte range lock exerciser
   9  */
  10
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <malloc.h>
  14 #include <fcntl.h>
  15 #include <errno.h>
  16 #include <string.h>
  17 #include <sys/stat.h>
  18 #include <sys/socket.h>
  19 #include <netinet/in.h>
  20 #include <netinet/tcp.h>
  21
  22 #include <unistd.h>
  23 #include <sys/types.h>
  24 #include <netdb.h>
  25 #include <endian.h>
  26 #include <byteswap.h>
  27 #include <errno.h>
  28 #include <string.h>
  29 #define     HEX_2_ASC(x)    ((x) > 9) ? (x)-10+'a' : (x)+'0'
  30 #define         FILE_SIZE       1024
  31 #define PLATFORM_INIT()     /*no-op*/
  32 #define PLATFORM_CLEANUP()  /*no-op*/
  33 #define LL                  "ll"
  34
  35 extern int h_errno;
  36
  37 #define inet_aton(STRING, INADDRP) \
  38     (((INADDRP)->s_addr = inet_addr(STRING)) == -1 ? 0 : 1)
  39
  40 /* this assumes 32 bit pointers */
  41 #define PTR_TO_U64(P) ((unsigned __int64)(unsigned int)(P))
  42 #define U64_TO_PTR(T,U) ((T)(void *)(unsigned int)(U))
  43
  44 #if __BYTE_ORDER == __LITTLE_ENDIAN
  45 #define bswap_uint16(x)         (uint16_t)bswap_16(x)
  46 #define bswap_uint32(x)         (uint32_t)bswap_32(x)
  47 #define bswap_uint64(x)         (uint64_t)bswap_64(x)
  48 #else
  49 #define bswap_uint16(x)         x
  50 #define bswap_uint32(x)         x
  51 #define bswap_uint64(x)         x
  52 #endif
  53
  54 #define SOCKET              int
  55 #define SOCKET_READ         read
  56 #define SOCKET_WRITE        write
  57 #define SOCKET_CLOSE(S)     (close(S))
  58 #define INVALID_SOCKET      -1
  59
  60 #define O_BINARY            0
  61
  62 #define HANDLE              int
  63 #define INVALID_HANDLE      -1
  64 #define SEEK(H, O)          (lseek(H, O, SEEK_SET))
  65 #define READ(H, B, L)       (read(H, B, L))
  66 #define WRITE(H, B, L)      (write(H, B, L))
  67 #define CLOSE(H)            (close(H))
  68
  69 #define RAND()              (rand())
  70 #define SRAND(s)            (srand(s))
  71
  72 #define MIN(A,B)            (((A)<(B))?(A):(B))
  73 #define MAX(A,B)            (((A)>(B))?(A):(B))
  74
  75 #define ALLOC_ALIGNED(S)    (memalign(65536, S))
  76 #define FREE_ALIGNED(P)     (free(P))
  77
  78 static char     *prog;
  79 static char     *filename = 0;
  80 static int      debug = 0;
  81 static int      server = 1;
  82 static int      port = 0;
  83 static int      testnumber = -1;
  84 static int      saved_errno = 0;
  85
  86 static SOCKET   s_fd = -1;              /* listen socket    */
  87 static SOCKET   c_fd = -1;              /* IPC socket       */
  88 static HANDLE   f_fd = INVALID_HANDLE;  /* shared file      */
  89
  90 #define         CMD_WRLOCK      0
  91 #define         CMD_RDLOCK      1
  92 #define         CMD_UNLOCK      2
  93 #define         CMD_CLOSE       3
  94 #define         CMD_OPEN        4
  95 #define         CMD_WRTEST      5
  96 #define         CMD_RDTEST      6
  97
  98 #define         PASS    1
  99 #define         FAIL    0
 100
 101 #define         SERVER  0
 102 #define         CLIENT  1
 103
 104 #define         TEST_NUM        0
 105 #define         COMMAND         1
 106 #define         OFFSET          2
 107 #define         LENGTH          3
 108 #define         RESULT          4
 109 #define         WHO             5
 110 #define         FLAGS           2 /* index 2 is also used for do_open() flag, see below */
 111
 112 /*
 113  * flags for Mac OS X do_open()
 114  * O_RDONLY     0x0000
 115  * O_WRONLY     0x0001
 116  * O_RDWR       0x0002
 117  * O_NONBLOCK   0x0004
 118  * O_APPEND     0x0008
 119  * O_SHLOCK     0x0010
 120  * O_EXLOCK     0x0020
 121  * O_ASYNC      0x0040
 122  * O_FSYNC      0x0080
 123  * O_NOFOLLOW   0x0100
 124  * O_CREAT      0x0200
 125  * O_TRUNC      0x0400
 126  * O_EXCL       0x0800
 127  */
 128
 129 /*
 130  * When adding tests be sure to add to both the descriptions AND tests array.
 131  * Also, be sure to undo whatever is set for each test (eg unlock any locks)
 132  * There is no need to have a matching client command for each server command
 133  * (or vice versa)
 134  */
 135
 136 char *descriptions[] = {
 137     /* 1 */"Add a lock to an empty lock list",
 138     /* 2 */"Add a lock to the start and end of a list - no overlaps",
 139     /* 3 */"Add a lock to the middle of a list - no overlap",
 140     /* 4 */"Add different lock types to middle of the list - overlap exact match",
 141     /* 5 */"Add new lock which completely overlaps any old lock in the list",
 142     /* 6 */"Add new lock which itself is completely overlaped by any old lock in the list",
 143     /* 7 */"Add new lock which starts before any old lock in the list",
 144     /* 8 */"Add new lock which starts in the middle of any old lock in the list and ends after",
 145     /* 9 */"Add different new lock types which completely overlaps any old lock in the list",
 146     /* 10 */"Add different new locks which are completely overlaped by an old lock in the list",
 147     /* 11 */"Add different new lock types which start before the old lock in the list",
 148     /* 12 */"Add different new lock types which start in the middle of an old lock in the list and end after",
 149     /* 13 */"Add new lock, differing types and processes, to middle of the list - exact overlap match",
 150     /* 14 */"Add new lock, differing types and processes, which completely overlap any of the locks in the list",
 151     /* 15 */"Add new lock, differing types and processes, which are completely overlaped by locks in the list",
 152     /* 16 */"Add new lock, differing types and processes, which start before a lock in the list",
 153     /* 17 */"Add new lock, differing types and processes, which starts in the middle of a lock, and ends after",
 154     /* 18 */"Acquire write locks with overlapping ranges",
 155     /* 19 */"Acquire write locks with non-overlapping ranges extending beyond EOF",
 156     /* 20 */"Acquire write locks with overlapping ranges extending beyond EOF",
 157     /* 21 */"Acquire write locks on whole files",
 158     /* 22 */"Acquire write lock on whole file and range write lock",
 159     /* 23 */"Acquire read locks with non-overlapping ranges",
 160     /* 24 */"Acquire read locks with overlapping ranges",
 161     /* 25 */"Acquire read and write locks with no overlapping ranges",
 162     /* 26 */"Acquire read and write locks with overlapping ranges",
 163     /* 27 */"Acquire whole file write lock and then close without unlocking (and attempt a lock)",
 164     /* 28 */"Acquire two read locks, close and reopen the file, and test if the inital lock is still there",
 165     /* 29 */"Verify that F_GETLK for F_WRLCK doesn't require that file be opened for write",
 166     #if defined(macosx)
 167     /* 30 */"Close the opened file and open the file with SHLOCK, other client will try to open with SHLOCK too",
 168     /* 31 */"Close the opened file and open the file with SHLOCK, other client will try to open with EXLOCK",
 169     /* 32 */"Close the opened file and open the file with EXLOCK, other client will try to open with EXLOCK too"
 170     #endif
 171 };
 172
 173 static int64_t tests[][6] =
 174         /*      test #  Action  [offset|flags]  length          expected        server/client */
 175         {
 176         /* Various simple tests exercising the list */
 177
 178 /* SECTION 1: WRITE and CMD_UNLOCK with the same process (SERVER) */
 179         /* Add a lock to an empty list */
 180                 {1,     CMD_WRLOCK,     1,              10,             PASS,           SERVER  },
 181                 {1,     CMD_UNLOCK,     1,              10,             PASS,           SERVER  },
 182
 183         /* Add a lock to the start and end of a list - 1, 13 - no overlap */
 184                 {2,     CMD_WRLOCK,     10,             10,             PASS,           SERVER  },
 185                 {2,     CMD_WRLOCK,     30,             10,             PASS,           SERVER  },
 186                 {2,     CMD_WRLOCK,     50,             10,             PASS,           SERVER  },
 187                 {2,     CMD_WRLOCK,     1,              5,              PASS,           SERVER  },
 188                 {2,     CMD_WRLOCK,     70,             5,              PASS,           SERVER  },
 189
 190                 {2,     CMD_UNLOCK,     10,             10,             PASS,           SERVER  },
 191                 {2,     CMD_UNLOCK,     30,             10,             PASS,           SERVER  },
 192                 {2,     CMD_UNLOCK,     50,             10,             PASS,           SERVER  },
 193                 {2,     CMD_UNLOCK,     1,              5,              PASS,           SERVER  },
 194                 {2,     CMD_UNLOCK,     70,             5,              PASS,           SERVER  },
 195
 196         /* Add a lock to the middle of a list - no overlap */
 197                 {3,     CMD_WRLOCK,     10,             10,             PASS,           SERVER  },
 198                 {3,     CMD_WRLOCK,     30,             10,             PASS,           SERVER  },
 199                 {3,     CMD_WRLOCK,     50,             10,             PASS,           SERVER  },
 200                 {3,     CMD_WRLOCK,     42,             5,              PASS,           SERVER  },
 201
 202                 {3,     CMD_UNLOCK,     10,             10,             PASS,           SERVER  },
 203                 {3,     CMD_UNLOCK,     30,             10,             PASS,           SERVER  },
 204                 {3,     CMD_UNLOCK,     50,             10,             PASS,           SERVER  },
 205                 {3,     CMD_UNLOCK,     42,             5,              PASS,           SERVER  },
 206
 207         /* Add different lock types to middle of the list - overlap exact match - 3 */
 208                 {4,     CMD_WRLOCK,     10,             10,             PASS,           SERVER  },
 209                 {4,     CMD_WRLOCK,     30,             10,             PASS,           SERVER  },
 210                 {4,     CMD_WRLOCK,     50,             10,             PASS,           SERVER  },
 211                 /* Exact match - same lock type */
 212                 {4,     CMD_WRLOCK,     30,             10,             PASS,           SERVER  },
 213                 /* Exact match - different lock type */
 214                 {4,     CMD_RDLOCK,     30,             10,             PASS,           SERVER  },
 215                 /* Exact match - unlock */
 216                 {4,     CMD_UNLOCK,     30,             10,             PASS,           SERVER  },
 217                 /* New lock - as above, inserting in the list again */
 218                 {4,     CMD_WRLOCK,     30,             10,             PASS,           SERVER  },
 219
 220                 {4,     CMD_UNLOCK,     10,             10,             PASS,           SERVER  },
 221                 {4,     CMD_UNLOCK,     30,             10,             PASS,           SERVER  },
 222                 {4,     CMD_UNLOCK,     50,             10,             PASS,           SERVER  },
 223
 224         /* Add new lock which completely overlaps any old lock in the list - 4,5,6 */
 225                 {5,     CMD_WRLOCK,     10,             10,             PASS,           SERVER  },
 226                 {5,     CMD_WRLOCK,     30,             10,             PASS,           SERVER  },
 227                 {5,     CMD_WRLOCK,     50,             10,             PASS,           SERVER  },
 228                 /* The start is the same, end overlaps */
 229                 {5,     CMD_WRLOCK,     30,             15,             PASS,           SERVER  },
 230                 /* The start is before, end is the same */
 231                 {5,     CMD_WRLOCK,     25,             20,             PASS,           SERVER  },
 232                 /* Both start and end overlap */
 233                 {5,     CMD_WRLOCK,     22,             26,             PASS,           SERVER  },
 234
 235                 {5,     CMD_UNLOCK,     10,             10,             PASS,           SERVER  },
 236                 {5,     CMD_UNLOCK,     22,             26,             PASS,           SERVER  },
 237                 {5,     CMD_UNLOCK,     50,             10,             PASS,           SERVER  },
 238
 239         /* Add new lock which itself is completely overlaped by any old lock in the list - 7,8,10 */
 240                 {6,     CMD_WRLOCK,     10,             10,             PASS,           SERVER  },
 241                 {6,     CMD_WRLOCK,     30,             10,             PASS,           SERVER  },
 242                 {6,     CMD_WRLOCK,     50,             10,             PASS,           SERVER  },
 243                 /* The start is the same, end is in the middle of old lock - NOP */
 244                 {6,     CMD_WRLOCK,     30,             5,              PASS,           SERVER  },
 245                 /* The start and end are in the middle of old lock - NOP */
 246                 {6,     CMD_WRLOCK,     32,             6,              PASS,           SERVER  },
 247                 /* Start in the middle and end is the same - NOP */
 248                 {6,     CMD_WRLOCK,     32,             8,              PASS,           SERVER  },
 249
 250                 {6,     CMD_UNLOCK,     10,             10,             PASS,           SERVER  },
 251                 {6,     CMD_UNLOCK,     30,             10,             PASS,           SERVER  },
 252                 {6,     CMD_UNLOCK,     32,             8,              PASS,           SERVER  },
 253                 {6,     CMD_UNLOCK,     50,             10,             PASS,           SERVER  },
 254
 255         /* Add new lock which starts before any old lock in the list - 2,9 */
 256                 {7,     CMD_WRLOCK,     10,             10,             PASS,           SERVER  },
 257                 {7,     CMD_WRLOCK,     30,             10,             PASS,           SERVER  },
 258                 {7,     CMD_WRLOCK,     50,             10,             PASS,           SERVER  },
 259                 /* Here is the new lock */
 260                 {7,     CMD_WRLOCK,     27,             10,             PASS,           SERVER  },
 261                 /* Go again with the end of the new lock matching the start of old lock */
 262                 {7,     CMD_WRLOCK,     25,             2,              PASS,           SERVER  },
 263
 264                 {7,     CMD_UNLOCK,     10,             10,             PASS,           SERVER  },
 265                 {7,     CMD_UNLOCK,     25,             15,             PASS,           SERVER  },
 266                 {7,     CMD_UNLOCK,     50,             10,             PASS,           SERVER  },
 267
 268         /* Add new lock which starts in the middle of any old lock in the list and ends after - 11,12 */
 269                 {8,     CMD_WRLOCK,     10,             10,             PASS,           SERVER  },
 270                 {8,     CMD_WRLOCK,     30,             10,             PASS,           SERVER  },
 271                 {8,     CMD_WRLOCK,     50,             10,             PASS,           SERVER  },
 272                 /* Here is the new lock */
 273                 {8,     CMD_WRLOCK,     35,             10,             PASS,           SERVER  },
 274                 /* Go again with the end of the new lock matching the start of old lock */
 275                 {8,     CMD_WRLOCK,     45,             2,              PASS,           SERVER  },
 276
 277                 {8,     CMD_UNLOCK,     10,             10,             PASS,           SERVER  },
 278                 {8,     CMD_UNLOCK,     30,             17,             PASS,           SERVER  },
 279                 {8,     CMD_UNLOCK,     50,             10,             PASS,           SERVER  },
 280 /* SECTION 2: Overlapping READ and WRITE and CMD_UNLOCK with the same process (SERVER) */
 281         /* Add different new lock types which completely overlaps any old lock in the list - 4,5,6 */
 282                 {9,     CMD_WRLOCK,     10,             10,             PASS,           SERVER  },
 283                 {9,     CMD_WRLOCK,     30,             10,             PASS,           SERVER  },
 284                 {9,     CMD_WRLOCK,     50,             10,             PASS,           SERVER  },
 285                 /* The start is the same, end overlaps */
 286                 {9,     CMD_RDLOCK,     30,             15,             PASS,           SERVER  },
 287                 /* The start is before, end is the same */
 288                 {9,     CMD_WRLOCK,     25,             20,             PASS,           SERVER  },
 289                 /* Both start and end overlap */
 290                 {9,     CMD_RDLOCK,     22,             26,             PASS,           SERVER  },
 291
 292                 {9,     CMD_UNLOCK,     10,             10,             PASS,           SERVER  },
 293                 {9,     CMD_UNLOCK,     22,             26,             PASS,           SERVER  },
 294                 {9,     CMD_UNLOCK,     50,             10,             PASS,           SERVER  },
 295
 296         /* Add different new locks which are completely overlaped by an old lock in the list - 7,8,10 */
 297                 {10,    CMD_WRLOCK,     10,             10,             PASS,           SERVER  },
 298                 {10,    CMD_WRLOCK,     30,             10,             PASS,           SERVER  },
 299                 {10,    CMD_WRLOCK,     50,             10,             PASS,           SERVER  },
 300                 /* The start is the same, end is in the middle of old lock */
 301                 {10,    CMD_RDLOCK,     30,             5,              PASS,           SERVER  },
 302                 /* The start and end are in the middle of a lock */
 303                 {10,    CMD_WRLOCK,     32,             2,              PASS,           SERVER  },
 304                 /* Start in the middle and end is the same */
 305                 {10,    CMD_RDLOCK,     36,             5,              PASS,           SERVER  },
 306
 307                 {10,    CMD_UNLOCK,     10,             10,             PASS,           SERVER  },
 308                 {10,    CMD_UNLOCK,     30,             11,             PASS,           SERVER  },
 309                 {10,    CMD_UNLOCK,     50,             10,             PASS,           SERVER  },
 310
 311         /* Add different new lock types which start before the old lock in the list - 2,9 */
 312                 {11,    CMD_WRLOCK,     10,             10,             PASS,           SERVER  },
 313                 {11,    CMD_WRLOCK,     30,             10,             PASS,           SERVER  },
 314                 {11,    CMD_WRLOCK,     50,             10,             PASS,           SERVER  },
 315                 /* Here is the new lock */
 316                 {11,    CMD_RDLOCK,     27,             10,             PASS,           SERVER  },
 317                 /* Go again with the end of the new lock matching the start of lock */
 318                 {11,    CMD_WRLOCK,     25,             3,              PASS,           SERVER  },
 319
 320                 {11,    CMD_UNLOCK,     10,             10,             PASS,           SERVER  },
 321                 {11,    CMD_UNLOCK,     25,             15,             PASS,           SERVER  },
 322                 {11,    CMD_UNLOCK,     50,             10,             PASS,           SERVER  },
 323
 324         /* Add different new lock types which start in the middle of an old lock in the list and end after - 11,12 */
 325                 {12,    CMD_WRLOCK,     10,             10,             PASS,           SERVER  },
 326                 {12,    CMD_WRLOCK,     30,             10,             PASS,           SERVER  },
 327                 {12,    CMD_WRLOCK,     50,             10,             PASS,           SERVER  },
 328                 /* Here is the new lock */
 329                 {12,    CMD_RDLOCK,     35,             10,             PASS,           SERVER  },
 330                 /* Go again with the end of the new lock matching the start of old lock */
 331                 {12,    CMD_WRLOCK,     44,             3,              PASS,           SERVER  },
 332
 333                 {12,    CMD_UNLOCK,     10,             10,             PASS,           SERVER  },
 334                 {12,    CMD_UNLOCK,     30,             18,             PASS,           SERVER  },
 335                 {12,    CMD_UNLOCK,     50,             10,             PASS,           SERVER  },
 336
 337 /* SECTION 3: Overlapping READ and WRITE and CMD_UNLOCK with the different processes (CLIENT/SERVER) */
 338         /* Add new lock, differing types and processes, to middle of the list - exact overlap match - 3 */
 339                 {13,    CMD_WRLOCK,     10,             10,             PASS,           SERVER  },
 340                 {13,    CMD_WRLOCK,     30,             10,             PASS,           SERVER  },
 341                 {13,    CMD_RDLOCK,     50,             10,             PASS,           SERVER  },
 342                 /* Same lock type, different process */
 343                 {13,    CMD_WRLOCK,     30,             10,             FAIL,           CLIENT  },
 344                 {13,    CMD_RDLOCK,     50,             10,             PASS,           CLIENT  },
 345                 /* Exact match - different lock type, different process */
 346                 {13,    CMD_RDLOCK,     30,             10,             FAIL,           CLIENT  },
 347                 /* Exact match - unlock */
 348                 {13,    CMD_UNLOCK,     30,             10,             PASS,           CLIENT  },
 349                 /* New lock - as above, inserting in the list again */
 350                 {13,    CMD_UNLOCK,     30,             10,             PASS,           SERVER  },
 351                 /* Exact match - same lock type, different process */
 352                 {13,    CMD_WRLOCK,     30,             10,             PASS,           CLIENT  },
 353
 354                 {13,    CMD_UNLOCK,     10,             10,             PASS,           SERVER  },
 355                 {13,    CMD_UNLOCK,     30,             10,             PASS,           CLIENT  },
 356                 {13,    CMD_UNLOCK,     50,             10,             PASS,           SERVER  },
 357
 358         /* Add new lock, differing types and processes, which completely overlap any of the locks in the list - 4,5,6 */
 359                 {14,    CMD_WRLOCK,     10,             10,             PASS,           SERVER  },
 360                 {14,    CMD_WRLOCK,     30,             10,             PASS,           SERVER  },
 361                 {14,    CMD_RDLOCK,     50,             10,             PASS,           SERVER  },
 362                 /* The start is the same, end overlaps */
 363                 {14,    CMD_RDLOCK,     30,             15,             FAIL,           CLIENT  },
 364                 {14,    CMD_WRLOCK,     30,             15,             FAIL,           CLIENT  },
 365                 /* The start is before, end is the same */
 366                 {14,    CMD_RDLOCK,     25,             20,             FAIL,           CLIENT  },
 367                 {14,    CMD_WRLOCK,     25,             20,             FAIL,           CLIENT  },
 368                 /* Both start and end overlap */
 369                 {14,    CMD_RDLOCK,     22,             26,             FAIL,           CLIENT  },
 370                 {14,    CMD_WRLOCK,     22,             26,             FAIL,           CLIENT  },
 371
 372                 /* The start is the same, end overlaps */
 373                 {14,    CMD_RDLOCK,     50,             15,             PASS,           CLIENT  },
 374                 {14,    CMD_WRLOCK,     50,             17,             FAIL,           CLIENT  },
 375                 /* The start is before, end is the same */
 376                 {14,    CMD_RDLOCK,     45,             20,             PASS,           CLIENT  },
 377                 {14,    CMD_WRLOCK,     43,             22,             FAIL,           CLIENT  },
 378                 /* Both start and end overlap */
 379                 {14,    CMD_RDLOCK,     42,             26,             PASS,           CLIENT  },
 380                 {14,    CMD_WRLOCK,     41,             28,             FAIL,           CLIENT  },
 381
 382                 {14,    CMD_UNLOCK,     10,             10,             PASS,           SERVER  },
 383                 {14,    CMD_UNLOCK,     22,             26,             PASS,           SERVER  },
 384                 {14,    CMD_UNLOCK,     42,             26,             PASS,           CLIENT  },
 385
 386         /* Add new lock, differing types and processes, which are completely overlaped by an old lock in the list - 7,8,10 */
 387                 {15,    CMD_WRLOCK,     10,             10,             PASS,           SERVER  },
 388                 {15,    CMD_RDLOCK,     30,             10,             PASS,           SERVER  },
 389                 {15,    CMD_WRLOCK,     50,             10,             PASS,           SERVER  },
 390                 /* The start is the same, end is in the middle of old lock */
 391                 {15,    CMD_RDLOCK,     50,             5,              FAIL,           CLIENT  },
 392                 {15,    CMD_WRLOCK,     50,             5,              FAIL,           CLIENT  },
 393                 /* The start and end are in the middle of old lock */
 394                 {15,    CMD_RDLOCK,     52,             6,              FAIL,           CLIENT  },
 395                 {15,    CMD_WRLOCK,     52,             6,              FAIL,           CLIENT  },
 396                 /* Start in the middle and end is the same */
 397                 {15,    CMD_RDLOCK,     52,             8,              FAIL,           CLIENT  },
 398                 {15,    CMD_WRLOCK,     52,             8,              FAIL,           CLIENT  },
 399                 /* The start is the same, end is in the middle of old lock */
 400                 {15,    CMD_RDLOCK,     30,             5,              PASS,           CLIENT  },
 401                 {15,    CMD_WRLOCK,     30,             5,              FAIL,           CLIENT  },
 402                 /* The start and end are in the middle of old lock */
 403                 {15,    CMD_RDLOCK,     32,             6,              PASS,           CLIENT  },
 404                 {15,    CMD_WRLOCK,     32,             6,              FAIL,           CLIENT  },
 405                 /* Start in the middle and end is the same */
 406                 {15,    CMD_RDLOCK,     32,             8,              PASS,           CLIENT  },
 407                 {15,    CMD_WRLOCK,     32,             8,              FAIL,           CLIENT  },
 408
 409                 {15,    CMD_UNLOCK,     10,             10,             PASS,           SERVER  },
 410                 {15,    CMD_UNLOCK,     30,             10,             PASS,           SERVER  },
 411                 {15,    CMD_UNLOCK,     50,             10,             PASS,           SERVER  },
 412         /* Add new lock, differing types and processes, which start before a lock in the list - 2,9 */
 413                 {16,    CMD_RDLOCK,     10,             10,             PASS,           SERVER  },
 414                 {16,    CMD_WRLOCK,     50,             10,             PASS,           SERVER  },
 415                 /* Start is before, end is the start of the old lock in list */
 416                 {16,    CMD_RDLOCK,     5,              6,              PASS,           CLIENT  },
 417                 {16,    CMD_WRLOCK,     5,              6,              FAIL,           CLIENT  },
 418                 /* Start is before, end is in the middle of the old lock */
 419                 {16,    CMD_RDLOCK,     5,              10,             PASS,           CLIENT  },
 420                 {16,    CMD_WRLOCK,     5,              10,             FAIL,           CLIENT  },
 421                 /* Start is before, end is the start of the old lock in list */
 422                 {16,    CMD_RDLOCK,     45,             6,              FAIL,           CLIENT  },
 423                 {16,    CMD_WRLOCK,     45,             6,              FAIL,           CLIENT  },
 424                 /* Start is before, end is in the middle of the old lock */
 425                 {16,    CMD_RDLOCK,     45,             10,             FAIL,           CLIENT  },
 426                 {16,    CMD_WRLOCK,     45,             10,             FAIL,           CLIENT  },
 427
 428                 {16,    CMD_UNLOCK,     5,              15,             PASS,           CLIENT  },
 429                 {16,    CMD_UNLOCK,     30,             10,             PASS,           SERVER  },
 430                 {16,    CMD_UNLOCK,     50,             10,             PASS,           SERVER  },
 431
 432         /* Add new lock, differing types and processes, which starts in the middle of a lock, and ends after - 11,12 */
 433                 {17,    CMD_WRLOCK,     10,             10,             PASS,           SERVER  },
 434                 {17,    CMD_RDLOCK,     30,             10,             PASS,           SERVER  },
 435                 {17,    CMD_WRLOCK,     50,             10,             PASS,           SERVER  },
 436                 /* Start in the middle, end after lock in list */
 437                 {17,    CMD_WRLOCK,     35,             10,             FAIL,           CLIENT  },
 438                 /* Start matches end of lock in list  */
 439                 {17,    CMD_RDLOCK,     35,             10,             PASS,           CLIENT  },
 440                 {17,    CMD_RDLOCK,     44,             2,              PASS,           CLIENT  },
 441                 /* Start in the middle, end after lock in list */
 442                 {17,    CMD_RDLOCK,     55,             10,             FAIL,           CLIENT  },
 443                 {17,    CMD_WRLOCK,     55,             10,             FAIL,           CLIENT  },
 444                 /* Start matches end of lock in list  */
 445                 {17,    CMD_RDLOCK,     59,             5,              FAIL,           CLIENT  },
 446                 {17,    CMD_WRLOCK,     59,             5,              FAIL,           CLIENT  },
 447
 448                 {17,    CMD_UNLOCK,     10,             10,             PASS,           SERVER  },
 449                 {17,    CMD_UNLOCK,     30,             16,             PASS,           CLIENT  },
 450                 {17,    CMD_UNLOCK,     50,             10,             PASS,           SERVER  },
 451
 452 /* SECTION 4: overlapping and EOF tests */
 453         /* Acquire overlapping ranges */
 454                 {18,    CMD_WRLOCK,     11,             7,              PASS,           SERVER  },
 455                 {18,    CMD_WRLOCK,     13,             8,              FAIL,           CLIENT  },
 456                 {18,    CMD_UNLOCK,     11,             7,              PASS,           SERVER  },
 457         /* Acquire different ranges beyond EOF */
 458                 {19,    CMD_WRLOCK,     10,             FILE_SIZE,      PASS,           SERVER  },
 459                 {19,    CMD_WRLOCK,     FILE_SIZE + 10, 10,             PASS,           CLIENT  },
 460                 {19,    CMD_UNLOCK,     10,             FILE_SIZE,      PASS,           SERVER  },
 461                 {19,    CMD_UNLOCK,     FILE_SIZE + 10, 10,             PASS,           CLIENT  },
 462         /* Acquire same range beyong EOF */
 463                 {20,    CMD_WRLOCK,     10,             FILE_SIZE,      PASS,           SERVER, },
 464                 {20,    CMD_WRLOCK,     10,             FILE_SIZE,      FAIL,           CLIENT, },
 465                 {20,    CMD_UNLOCK,     10,             FILE_SIZE,      PASS,           SERVER, },
 466         /* Acquire whole file lock */
 467                 {21,    CMD_WRLOCK,     0,              0,              PASS,           SERVER, },
 468                 {21,    CMD_WRLOCK,     0,              0,              FAIL,           CLIENT, },
 469                 {21,    CMD_UNLOCK,     0,              0,              PASS,           SERVER, },
 470         /* Acquire whole file lock, then range */
 471                 {22,    CMD_WRLOCK,     0,              0,              PASS,           SERVER, },
 472                 {22,    CMD_WRLOCK,     1,              5,              FAIL,           CLIENT, },
 473                 {22,    CMD_UNLOCK,     0,              0,              PASS,           SERVER, },
 474         /* Acquire non-overlapping read locks */
 475                 {23,    CMD_RDLOCK, 1,          5,              PASS,           SERVER, },
 476                 {23,    CMD_RDLOCK, 7,          6,              PASS,           CLIENT, },
 477                 {23,    CMD_UNLOCK, 1,          5,              PASS,           SERVER, },
 478                 {23,    CMD_UNLOCK, 7,          6,              PASS,           CLIENT, },
 479         /* Acquire overlapping read locks */
 480                 {24,    CMD_RDLOCK, 1,          5,              PASS,           SERVER, },
 481                 {24,    CMD_RDLOCK, 2,          6,              PASS,           CLIENT, },
 482                 {24,    CMD_UNLOCK, 1,          5,              PASS,           SERVER, },
 483                 {24,    CMD_UNLOCK, 1,          7,              PASS,           CLIENT, },
 484         /* Acquire non-overlapping read and write locks */
 485                 {25,    CMD_RDLOCK, 1,          5,              PASS,           SERVER, },
 486                 {25,    CMD_WRLOCK, 7,          6,              PASS,           CLIENT, },
 487                 {25,    CMD_UNLOCK, 1,          5,              PASS,           SERVER, },
 488                 {25,    CMD_UNLOCK, 7,          6,              PASS,           CLIENT, },
 489         /* Acquire overlapping read and write locks */
 490                 {26,    CMD_RDLOCK, 1,          5,              PASS,           SERVER, },
 491                 {26,    CMD_WRLOCK, 2,          6,              FAIL,           CLIENT, },
 492                 {26,    CMD_UNLOCK, 1,          5,              PASS,           SERVER, },
 493         /* Acquire whole file lock, then close (without unlocking) */
 494                 {27,    CMD_WRLOCK,     0,              0,              PASS,           SERVER, },
 495                 {27,    CMD_WRLOCK,     1,              5,              FAIL,           CLIENT, },
 496                 {27,    CMD_CLOSE,0,            0,              PASS,           SERVER, },
 497                 {27,    CMD_WRLOCK,     1,              5,              PASS,           CLIENT, },
 498                 {27,    CMD_OPEN,       O_RDWR,         0,              PASS,           SERVER, },
 499                 {27,    CMD_UNLOCK,     1,              5,              PASS,           CLIENT, },
 500         /* Acquire two read locks, close one file and then reopen to check that first lock still exists */
 501                 {28,    CMD_RDLOCK,     1,              5,              PASS,           SERVER, },
 502                 {28,    CMD_RDLOCK,     1,              5,              PASS,           CLIENT, },
 503                 {28,    CMD_CLOSE,0,            0,              PASS,           SERVER, },
 504                 {28,    CMD_OPEN,       O_RDWR,         0,              PASS,           SERVER, },
 505                 {28,    CMD_WRLOCK,     0,              0,              FAIL,           SERVER, },
 506                 {28,    CMD_UNLOCK,     1,              5,              PASS,           SERVER, },
 507         /* Verify that F_GETLK for F_WRLCK doesn't require that file be opened for write */
 508                 {29,    CMD_CLOSE, 0,           0,              PASS,           SERVER, },
 509                 {29,    CMD_OPEN, O_RDONLY,     0,              PASS,           SERVER, },
 510                 {29,    CMD_WRTEST, 0,          0,              PASS,           SERVER, },
 511                 {29,    CMD_CLOSE,0,            0,              PASS,           SERVER, },
 512                 {29,    CMD_OPEN,       O_RDWR,         0,              PASS,           SERVER, },
 513 #ifdef macosx
 514         /* Close the opened file and open the file with SHLOCK, other client will try to open with SHLOCK too */
 515                 {30,    CMD_CLOSE,0,            0,              PASS,           SERVER, },
 516                 {30,    CMD_OPEN,       O_RDWR|O_SHLOCK|O_NONBLOCK,     0,      PASS,           SERVER, },
 517                 {30,    CMD_CLOSE,0,            0,              PASS,           CLIENT, },
 518                 {30,    CMD_OPEN,       O_RDWR|O_SHLOCK|O_NONBLOCK,     0,      PASS,           CLIENT, },
 519         /* Close the opened file and open the file with SHLOCK, other client will try to open with EXLOCK */
 520                 {31,    CMD_CLOSE,0,            0,              PASS,           SERVER, },
 521                 {31,    CMD_CLOSE,0,            0,              PASS,           CLIENT, },
 522                 {31,    CMD_OPEN,       O_RDWR|O_SHLOCK|O_NONBLOCK,     0,      PASS,           SERVER, },
 523                 {31,    CMD_OPEN,       O_RDWR|O_EXLOCK|O_NONBLOCK,     0,      FAIL,           CLIENT, },
 524         /* Close the opened file and open the file with EXLOCK, other client will try to open with EXLOCK too */
 525                 {32,    CMD_CLOSE,0,            0,              PASS,           SERVER, },
 526                 {32,    CMD_CLOSE,0,            0,              FAIL,           CLIENT, },
 527                 {32,    CMD_OPEN,       O_RDWR|O_EXLOCK|O_NONBLOCK,     0,      PASS,           SERVER, },
 528                 {32,    CMD_OPEN,       O_RDWR|O_EXLOCK|O_NONBLOCK,     0,      FAIL,           CLIENT, },
 529                 {32,    CMD_CLOSE,0,            0,              PASS,           SERVER, },
 530                 {32,    CMD_CLOSE,0,            0,              FAIL,           CLIENT, },
 531                 {32,    CMD_OPEN,       O_RDWR,         0,              PASS,           SERVER, },
 532                 {32,    CMD_OPEN,       O_RDWR,         0,              PASS,           CLIENT, },
 533 #endif /* macosx */
 534         /* indicate end of array */
 535                 {0,0,0,0,0,SERVER},
 536                 {0,0,0,0,0,CLIENT}
 537         };
 538
 539 static struct {
 540     int32_t             test;
 541     int32_t             command;
 542     int64_t             offset;
 543     int64_t             length;
 544     int32_t             result;
 545     int32_t             index;
 546     int32_t             error;
 547     int32_t             padding; /* So mac and irix have the same size struct (bloody alignment) */
 548 } ctl;
 549
 550
 551 void
 552 usage(void)
 553 {
 554     fprintf(stderr, "Usage: %s [options] sharedfile\n\
 555 \n\
 556 options:\n\
 557   -p port       TCP/IP port number for client-server communication\n\
 558   -d            enable debug tracing\n\
 559   -n #          test number to run\n\
 560   -h host       run as client and connect to server on remote host\n\
 561                 [default run as server]\n", prog);
 562     exit(1);
 563 }
 564
 565 #define INIT_BUFSZ 512
 566
 567 void
 568 initialize(HANDLE fd)
 569 {
 570     char*       ibuf;
 571     int         j=0;
 572     int         nwrite;
 573     int         offset = 0;
 574     int         togo = FILE_SIZE;
 575
 576     ibuf = (char*)malloc(INIT_BUFSZ);
 577     memset(ibuf, ':', INIT_BUFSZ);
 578
 579     SEEK(fd, 0L);
 580     while (togo) {
 581         offset+=j;
 582         j = togo > INIT_BUFSZ ? INIT_BUFSZ : togo;
 583
 584         if ((nwrite = WRITE(fd, ibuf, j)) != j) {
 585             if (nwrite < 0)
 586                 perror("initialize write:");
 587             else
 588                 fprintf(stderr, "initialize: write() returns %d, not %d as expected\n",
 589                         nwrite, j);
 590             exit(1);
 591             /*NOTREACHED*/
 592         }
 593         togo -= j;
 594     }
 595 }
 596
 597
 598 int do_open(int flag)
 599 {
 600     int flags = flag|O_CREAT|O_BINARY;
 601
 602     if(debug > 1)
 603         fprintf(stderr, "do_open %s 0x%x\n", filename, flags);
 604
 605     if ((f_fd = open(filename, flags, 0666)) == INVALID_HANDLE) {
 606         perror("shared file create");
 607         return FAIL;
 608         /*NOTREACHED*/
 609     }
 610     return PASS;
 611 }
 612
 613 static int do_lock(int cmd, int type, int start, int length)
 614 {
 615     int ret;
 616     int filedes = f_fd;
 617     struct flock fl;
 618
 619     if(debug > 1) {
 620         fprintf(stderr, "do_lock: cmd=%d type=%d start=%d, length=%d\n", cmd, type, start, length);
 621     }
 622
 623     if (f_fd < 0)
 624         return f_fd;
 625
 626     fl.l_start = start;
 627     fl.l_len = length;
 628     fl.l_whence = SEEK_SET;
 629     fl.l_pid = getpid();
 630     fl.l_type = type;
 631
 632     errno = 0;
 633
 634     ret = fcntl(filedes, cmd, &fl);
 635     saved_errno = errno;
 636
 637     if(debug > 1 && ret)
 638         fprintf(stderr, "do_lock: ret = %d, errno = %d (%s)\n", ret, errno, strerror(errno));
 639
 640     return(ret==0?PASS:FAIL);
 641 }
 642
 643 int do_close(void)
 644 {
 645     if(debug > 1) {
 646         fprintf(stderr, "do_close\n");
 647     }
 648
 649     errno =0;
 650     CLOSE(f_fd);
 651     f_fd = INVALID_HANDLE;
 652
 653     saved_errno = errno;
 654
 655     if (errno)
 656         return FAIL;
 657     return PASS;
 658 }
 659
 660 void
 661 send_ctl(void)
 662 {
 663     int         nwrite;
 664
 665     if (debug > 1) {
 666         fprintf(stderr, "send_ctl: test=%d, command=%d offset=%"LL"d, length=%"LL"d, result=%d, error=%d\n",
 667                 ctl.test, ctl.command, (long long)ctl.offset, (long long)ctl.length,ctl.result, ctl.error);
 668     }
 669
 670     ctl.test= bswap_uint32(ctl.test);
 671     ctl.command = bswap_uint32(ctl.command);
 672     ctl.offset = bswap_uint64(ctl.offset);
 673     ctl.length = bswap_uint64(ctl.length);
 674     ctl.result = bswap_uint32(ctl.result);
 675     ctl.index= bswap_uint32(ctl.index);
 676     ctl.error = bswap_uint32(ctl.error);
 677     nwrite = SOCKET_WRITE(c_fd, (char*)&ctl, sizeof(ctl));
 678
 679     ctl.test= bswap_uint32(ctl.test);
 680     ctl.command = bswap_uint32(ctl.command);
 681     ctl.offset = bswap_uint64(ctl.offset);
 682     ctl.length = bswap_uint64(ctl.length);
 683     ctl.result = bswap_uint32(ctl.result);
 684     ctl.index= bswap_uint32(ctl.index);
 685     ctl.error= bswap_uint32(ctl.error);
 686     if (nwrite != sizeof(ctl)) {
 687         if (nwrite < 0)
 688             perror("send_ctl: write");
 689         else
 690             fprintf(stderr, "send_ctl[%d]: write() returns %d, not %zu as expected\n",
 691                     ctl.test, nwrite, sizeof(ctl));
 692         exit(1);
 693         /*NOTREACHED*/
 694     }
 695 }
 696
 697 void recv_ctl(void)
 698 {
 699     int         nread;
 700
 701     if ((nread = SOCKET_READ(c_fd, (char*)&ctl, sizeof(ctl))) != sizeof(ctl)) {
 702         if (nread < 0)
 703             perror("recv_ctl: read");
 704         else {
 705             fprintf(stderr, "recv_ctl[%d]: read() returns %d, not %zu as expected\n",
 706                     ctl.test, nread, sizeof(ctl));
 707             fprintf(stderr, "socket might has been closed by other locktest\n");
 708         }
 709         exit(1);
 710         /*NOTREACHED*/
 711     }
 712     ctl.test= bswap_uint32(ctl.test);
 713     ctl.command = bswap_uint32(ctl.command);
 714     ctl.offset = bswap_uint64(ctl.offset);
 715     ctl.length = bswap_uint64(ctl.length);
 716     ctl.result = bswap_uint32(ctl.result);
 717     ctl.index= bswap_uint32(ctl.index);
 718     ctl.error= bswap_uint32(ctl.error);
 719
 720     if (debug > 1) {
 721         fprintf(stderr, "recv_ctl: test=%d, command=%d offset=%"LL"d, length=%"LL"d, result=%d, error=%d\n",
 722                 ctl.test, ctl.command, (long long)ctl.offset, (long long)ctl.length, ctl.result, ctl.error);
 723     }
 724 }
 725
 726 void
 727 cleanup(void)
 728 {
 729     if (f_fd>=0)
 730         CLOSE(f_fd);
 731
 732     if (c_fd>=0)
 733         SOCKET_CLOSE(c_fd);
 734
 735     if (s_fd>=0)
 736         SOCKET_CLOSE(s_fd);
 737
 738     PLATFORM_CLEANUP();
 739 }
 740
 741 int
 742 main(int argc, char *argv[])
 743 {
 744     int         i, sts;
 745     int         c;
 746     struct sockaddr_in  myAddr;
 747     struct linger       noLinger = {1, 0};
 748     char        *host = NULL;
 749     char        *endnum;
 750     int         errflag = 0;
 751     char        *p;
 752     extern char *optarg;
 753     extern int  optind;
 754     int fail_count = 0;;
 755
 756     atexit(cleanup);
 757
 758     PLATFORM_INIT();
 759
 760     /* trim command name of leading directory components */
 761     prog = argv[0];
 762     for (p = prog; *p; p++) {
 763         if (*p == '/')
 764             prog = p+1;
 765     }
 766
 767     while ((c = getopt(argc, argv, "dn:h:p:?")) != EOF) {
 768         switch (c) {
 769
 770         case 'd':       /* debug flag */
 771             debug++;
 772             break;
 773
 774         case 'h':       /* (server) hostname */
 775             server = 0;
 776             host = optarg;
 777             break;
 778
 779         case 'n':
 780             testnumber = atoi(optarg);
 781             break;
 782
 783         case 'p':       /* TCP/IP port */
 784             port = (int)strtol(optarg, &endnum, 10);
 785             if (*endnum != '\0') {
 786                 fprintf(stderr, "%s: -p argument must be a numeric\n",
 787                         prog);
 788                 exit(1);
 789                 /*NOTREACHED*/
 790             }
 791             break;
 792
 793         case '?':
 794         default:
 795             errflag++;
 796             break;
 797         }
 798     }
 799
 800     if (errflag || optind != argc-1) {
 801         usage();
 802         /*NOTREACHED*/
 803     }
 804
 805     filename=argv[optind];
 806     if (do_open(O_RDWR) == FAIL)
 807         exit(1);
 808
 809     setbuf(stderr, NULL);
 810
 811     if (server) {
 812         int one = 1;
 813
 814         s_fd = socket(AF_INET, SOCK_STREAM, 0);
 815         if (s_fd == INVALID_SOCKET) {
 816             perror("socket");
 817             exit(1);
 818             /*NOTREACHED*/
 819         }
 820         if (setsockopt(s_fd, IPPROTO_TCP, TCP_NODELAY, (char*)&one, sizeof(one)) < 0) {
 821             perror("setsockopt(nodelay)");
 822             exit(1);
 823             /*NOTREACHED*/
 824         }
 825         if (setsockopt(s_fd, SOL_SOCKET, SO_REUSEADDR, (char*)&one, sizeof(one))<0) {
 826             perror("setsockopt(reuseaddr)");
 827             exit(1);
 828             /*NOTREACHED*/
 829         }
 830 #ifdef SO_REUSEPORT
 831         if (setsockopt(s_fd, SOL_SOCKET, SO_REUSEPORT, (char*)&one, sizeof(one))<0) {
 832             perror("setsockopt(reuseport)");
 833             exit(1);
 834             /*NOTREACHED*/
 835         }
 836 #endif
 837
 838         memset(&myAddr, 0, sizeof(myAddr));
 839         myAddr.sin_family = AF_INET;
 840         myAddr.sin_addr.s_addr = htonl(INADDR_ANY);
 841         myAddr.sin_port = htons((short)port);
 842         sts = bind(s_fd, (struct sockaddr*)&myAddr, sizeof(myAddr));
 843         if (sts < 0) {
 844             perror("bind");
 845             exit(1);
 846             /*NOTREACHED*/
 847         }
 848
 849         sts = listen(s_fd, 5);  /* Max. of 5 pending connection requests */
 850         if (sts == -1) {
 851             perror("listen");
 852             exit(1);
 853             /*NOTREACHED*/
 854         }
 855
 856         if (port == 0) {
 857                 socklen_t addr_len = sizeof(myAddr);
 858
 859                 if (getsockname(s_fd, &myAddr, &addr_len)) {
 860                     perror("getsockname");
 861                     exit(1);
 862                 }
 863
 864                 port = ntohs(myAddr.sin_port);
 865         }
 866
 867         printf("server port: %d\n", port);
 868         fflush(stdout);
 869
 870         c_fd = accept(s_fd, NULL, NULL);
 871         if (c_fd == INVALID_SOCKET) {
 872             perror("accept");
 873             exit(1);
 874             /*NOTREACHED*/
 875         }
 876
 877         if (debug) fprintf(stderr, "Client accepted\n");
 878         SRAND(12345L);
 879     }
 880     else {
 881         struct hostent  *servInfo;
 882
 883         if ((servInfo = gethostbyname(host)) == NULL) {
 884             printf("Couldn't get hostbyname for %s", host);
 885             if (h_errno == HOST_NOT_FOUND)
 886                 printf(": host not found");
 887             printf("\n");
 888             exit(1);
 889             /*NOTREACHED*/
 890         }
 891
 892         c_fd = socket(AF_INET, SOCK_STREAM, 0);
 893         if (c_fd == INVALID_SOCKET) {
 894             perror("socket");
 895             exit(1);
 896             /*NOTREACHED*/
 897         }
 898         /* avoid 200 ms delay */
 899         if (setsockopt(c_fd, IPPROTO_TCP, TCP_NODELAY, (char *)&i, sizeof(i)) < 0) {
 900             perror("setsockopt(nodelay)");
 901             exit(1);
 902             /*NOTREACHED*/
 903         }
 904         /* Don't linger on close */
 905         if (setsockopt(c_fd, SOL_SOCKET, SO_LINGER, (char *)&noLinger, sizeof(noLinger)) < 0) {
 906             perror("setsockopt(nolinger)");
 907             exit(1);
 908             /*NOTREACHED*/
 909         }
 910
 911         memset(&myAddr, 0, sizeof(myAddr));     /* Arrgh! &myAddr, not myAddr */
 912         myAddr.sin_family = AF_INET;
 913         memcpy(&myAddr.sin_addr, servInfo->h_addr, servInfo->h_length);
 914         myAddr.sin_port = htons((short)port);
 915
 916         if (connect(c_fd, (struct sockaddr*)&myAddr, sizeof(myAddr)) < 0) {
 917             perror("unable to connect");
 918             fprintf(stderr, "Server might still initializing the shared file\n ");
 919             exit(1);
 920             /*NOTREACHED*/
 921         }
 922
 923         if (debug) fprintf(stderr, "Connected to server\n");
 924         SRAND(6789L);
 925     }
 926
 927     if (server)
 928         /* only server need do shared file */
 929         initialize(f_fd);
 930
 931     /*
 932      * TCP/IP connection to be established, safe to proceed.
 933      *
 934      * real work is in here ...
 935      */
 936     i = 0;
 937 {
 938     int index = 0;
 939     int end = 0;
 940     int result = 0;
 941     int last_test = 0;
 942     int test_count = 0;
 943     int fail_flag = 0;
 944     while(!end) {
 945         if (server) {
 946             if(testnumber > 0) {
 947                 last_test = testnumber - 1;
 948                 while(tests[index][TEST_NUM] != testnumber && tests[index][TEST_NUM] != 0) {
 949                     index++;
 950                 }
 951             }
 952             /* If we have a server command, deal with it */
 953             if(tests[index][WHO] == SERVER) {
 954                 if(debug>1)
 955                     fprintf(stderr, "Got a server command (%d)\n", index);
 956                 if(tests[index][TEST_NUM] == 0) {
 957                     index++;
 958                     continue;
 959                 }
 960                 memset(&ctl, 0, sizeof(ctl));
 961                 ctl.test = tests[index][TEST_NUM];
 962
 963                 if(tests[index][TEST_NUM] != 0) {
 964                     switch(tests[index][COMMAND]) {
 965                         case CMD_WRLOCK:
 966                             result = do_lock(F_SETLK, F_WRLCK, tests[index][OFFSET], tests[index][LENGTH]);
 967                             break;
 968                         case CMD_RDLOCK:
 969                             result = do_lock(F_SETLK, F_RDLCK, tests[index][OFFSET], tests[index][LENGTH]);
 970                             break;
 971                         case CMD_UNLOCK:
 972                             result = do_lock(F_SETLK, F_UNLCK, tests[index][OFFSET], tests[index][LENGTH]);
 973                             break;
 974                         case CMD_CLOSE:
 975                             result = do_close();
 976                             break;
 977                         case CMD_OPEN:
 978                             result = do_open(tests[index][FLAGS]);
 979                             break;
 980                         case CMD_WRTEST:
 981                             result = do_lock(F_GETLK, F_WRLCK, tests[index][OFFSET], tests[index][LENGTH]);
 982                             break;
 983                         case CMD_RDTEST:
 984                             result = do_lock(F_GETLK, F_RDLCK, tests[index][OFFSET], tests[index][LENGTH]);
 985                             break;
 986                     }
 987                     if( result != tests[index][RESULT]) {
 988                         fail_flag++;
 989                         /* We have a failure */
 990                         if(debug)
 991                             fprintf(stderr, "Server failure in test %d, while %sing using offset %lld, length %lld - err = %d:%s\n",
 992                                         ctl.test, tests[index][COMMAND]==CMD_WRLOCK?"write lock":
 993                                                 tests[index][COMMAND]==CMD_RDLOCK?"read lock":
 994                                                 tests[index][COMMAND]==CMD_UNLOCK?"unlock":
 995                                                 tests[index][COMMAND]==CMD_OPEN?"open":"clos",
 996                                                 (long long)tests[index][OFFSET],
 997                                                 (long long)tests[index][LENGTH],
 998                                                 saved_errno, strerror(saved_errno));
 999                         fprintf(stderr, "Server failure in %lld:%s\n",
1000                                         (long long)tests[index][TEST_NUM],
1001                                         descriptions[tests[index][TEST_NUM] - 1]);
1002                     }
1003                 }
1004             /* else send it off to the client */
1005             } else if (tests[index][WHO] == CLIENT) {
1006                 if(tests[index][TEST_NUM] == 0) {
1007                     ctl.test = 0;
1008                     end=1;
1009                 }
1010                 if(debug > 1)
1011                     fprintf(stderr, "Sending command to client (%d) - %s - %lld:%lld\n",
1012                                         index, tests[index][COMMAND]==CMD_WRLOCK?"write lock":
1013                                         tests[index][COMMAND]==CMD_RDLOCK?"read lock":
1014                                         tests[index][COMMAND]==CMD_UNLOCK?"unlock":
1015                                         tests[index][COMMAND]==CMD_OPEN?"open":"clos",
1016                                         (long long)tests[index][OFFSET],
1017                                         (long long)tests[index][LENGTH]);
1018                 /* get the client to do something */
1019                 ctl.index = index;
1020                 send_ctl();
1021                 if(ctl.test != 0) {
1022                     /* Get the clients response */
1023                     recv_ctl();
1024                     /* this is the whether the test passed or failed,
1025                      * not what the command returned */
1026                     if( ctl.result == FAIL ) {
1027                         fail_flag++;
1028                         if(debug)
1029                             fprintf(stderr, "Client failure in test %d, while %sing using offset %lld, length %lld - err = %d:%s\n",
1030                                         ctl.test, ctl.command==CMD_WRLOCK?"write lock":
1031                                         ctl.command==CMD_RDLOCK?"read lock":
1032                                         ctl.command==CMD_UNLOCK?"unlock":
1033                                         ctl.command==CMD_OPEN?"open":"clos",
1034                                         (long long)ctl.offset, (long long)ctl.length,
1035                                         ctl.error, strerror(ctl.error));
1036                         fprintf(stderr, "Client failure in %lld:%s\n",
1037                                         (long long)tests[index][TEST_NUM],
1038                                         descriptions[tests[index][TEST_NUM] - 1]);
1039                     }
1040                 }
1041             }
1042             if(tests[index][TEST_NUM] != 0) {
1043                 if(last_test != tests[index][TEST_NUM]) {
1044                     test_count++;
1045                     if(fail_flag)
1046                         fail_count++;
1047                     fail_flag = 0;
1048
1049                 }
1050                 last_test = tests[index][TEST_NUM];
1051             }
1052
1053             index++;
1054         } else { /* CLIENT */
1055             if(debug > 2)
1056                 fprintf(stderr,"client: waiting...\n");
1057             /* wait for the server to do something */
1058             recv_ctl();
1059
1060             /* check for a client command */
1061             index = ctl.index;
1062             if (tests[index][WHO] != CLIENT) {
1063                 fprintf(stderr, "not a client command index (%d)\n", index);
1064                 exit(1);
1065             }
1066
1067             if(ctl.test == 0) {
1068                 end = 1;
1069                 break;
1070             }
1071
1072
1073             ctl.command = tests[index][COMMAND];
1074             ctl.offset = tests[index][OFFSET];
1075             ctl.length = tests[index][LENGTH];
1076             switch(tests[index][COMMAND]) {
1077                 case CMD_WRLOCK:
1078                     result = do_lock(F_SETLK, F_WRLCK, tests[index][OFFSET], tests[index][LENGTH]);
1079                     break;
1080                 case CMD_RDLOCK:
1081                     result = do_lock(F_SETLK, F_RDLCK, tests[index][OFFSET], tests[index][LENGTH]);
1082                     break;
1083                 case CMD_UNLOCK:
1084                     result = do_lock(F_SETLK, F_UNLCK, tests[index][OFFSET], tests[index][LENGTH]);
1085                     break;
1086                 case CMD_CLOSE:
1087                     result = do_close();
1088                     break;
1089                 case CMD_OPEN:
1090                     result = do_open(tests[index][FLAGS]);
1091                     break;
1092                 case CMD_WRTEST:
1093                     result = do_lock(F_GETLK, F_WRLCK, tests[index][OFFSET], tests[index][LENGTH]);
1094                     break;
1095                 case CMD_RDTEST:
1096                     result = do_lock(F_GETLK, F_RDLCK, tests[index][OFFSET], tests[index][LENGTH]);
1097                     break;
1098             }
1099             if( result != tests[index][RESULT] ) {
1100                 if(debug)
1101                     fprintf(stderr,"Got %d, wanted %lld\n", result,
1102                                         (long long)tests[index][RESULT]);
1103                 ctl.result = FAIL;
1104                 ctl.error = saved_errno;
1105                 fail_count++;
1106             } else {
1107                 ctl.result = PASS;
1108             }
1109             if(debug > 2)
1110                 fprintf(stderr,"client: sending result to server (%d)\n", ctl.index);
1111             /* Send result to the server */
1112             send_ctl();
1113             if(tests[index][TEST_NUM] != 0) {
1114                 if(last_test != tests[index][TEST_NUM])
1115                     test_count++;
1116                 last_test = tests[index][TEST_NUM];
1117             }
1118         }
1119     }
1120     if(server)
1121         printf("%d tests run, %d failed\n", test_count, fail_count);
1122 }
1123
1124     exit(fail_count);
1125     /*NOTREACHED*/
1126 }
1127
1128