This file is indexed.

/usr/include/Xm/Xmos_r.h is in libmotif-dev 2.3.4-10.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
/* $Xorg: Xos_r.h,v 1.3 2000/08/18 04:05:44 coskrey Exp $ */
/* 
Copyright 1996, 1998  The Open Group

All Rights Reserved.

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.
*/
/* $XFree86: xc/include/Xos_r.h,v 1.9 2001/03/02 23:01:28 dawes Exp $ */

/* 
 * Various and sundry Thread-Safe functions used by X11, Motif, and CDE.
 *
 * Use this file in MT-safe code where you would have included
 *	<dirent.h>	for readdir()
 *	<grp.h>		for getgrgid() or getgrnam()
 *	<netdb.h>	for gethostbyname(), gethostbyaddr(), or getservbyname()
 *	<pwd.h>		for getpwnam() or getpwuid()
 *	<string.h>	for strtok()
 *	<time.h>	for asctime(), ctime(), localtime(), or gmtime()
 *	<unistd.h>	for getlogin() or ttyname()
 * or their thread-safe analogs.
 *
 * If you are on a platform that defines XTHREADS but does not have
 * MT-safe system API (e.g. UnixWare) you must define _Xos_processLock
 * and _Xos_processUnlock macros before including this header.  If
 * you are on OSF/1 V3.2 and plan to use readdir(), you must also define
 * _Xos_isThreadsInitialized.  For convenience XOS_USE_XLIB_LOCKING or
 * XOS_USE_XT_LOCKING may be defined to obtain either Xlib-only or
 * Xt-based versions of these macros.  These macros won't result in
 * truly thread-safe calls, but they are better than nothing.  If you
 * do not want locking in this situation define XOS_USE_NO_LOCKING.
 *
 * NOTE: On systems lacking approriate _r functions Gethostbyname(),
 *	Gethostbyaddr(), and Getservbyname() do NOT copy the host or
 *	protocol lists!
 *
 * NOTE: On systems lacking appropriate _r functions Getgrgid() and
 *	Getgrnam() do NOT copy the list of group members!
 *
 * This header is nominally intended to simplify porting X11, Motif, and 
 * CDE; it may be useful to other people too.  The structure below is
 * complicated, mostly because P1003.1c (the IEEE POSIX Threads spec)
 * went through lots of drafts, and some vendors shipped systems based
 * on draft API that were changed later.  Unfortunately POSIX did not
 * provide a feature-test macro for distinguishing each of the drafts.
 */

/*
 * This header has several parts.  Search for "Effective prototypes"
 * to locate the beginning of a section.
 */

/* This header can be included multiple times with different defines! */
#ifndef _XOS_R_H_
# define _XOS_R_H_

# include <X11/Xos.h>
# include <X11/Xfuncs.h>

# ifndef X_NOT_POSIX
#  ifdef _POSIX_SOURCE
#   include <limits.h>
#  else
#   define _POSIX_SOURCE
#   include <limits.h>
#   undef _POSIX_SOURCE
#  endif
#  ifndef LINE_MAX
#   define X_LINE_MAX 2048
#  else
#   define X_LINE_MAX LINE_MAX
#  endif
# endif
#endif /* _XOS_R_H */

#ifndef WIN32

#ifdef __cplusplus
extern "C" {
#endif

# if defined(XOS_USE_XLIB_LOCKING)
#  ifndef XAllocIDs /* Xlibint.h does not have multiple include protection */
typedef struct _LockInfoRec *LockInfoPtr;
extern LockInfoPtr _Xglobal_lock;
#  endif
#  ifndef _Xos_isThreadInitialized
#   define _Xos_isThreadInitialized	(_Xglobal_lock)
#  endif
#  if defined(XTHREADS_WARN) || defined(XTHREADS_FILE_LINE)
#   ifndef XAllocIDs /* Xlibint.h does not have multiple include protection */
#    include <X11/Xfuncproto.h>	/* for NeedFunctionPrototypes */
extern void (*_XLockMutex_fn)(
#    if NeedFunctionPrototypes
    LockInfoPtr	/* lock */, char * /* file */, int /* line */
#    endif
);
extern void (*_XUnlockMutex_fn)(
#    if NeedFunctionPrototypes
    LockInfoPtr	/* lock */, char * /* file */, int /* line */
#    endif
);
#   endif
#   ifndef _Xos_processLock
#    define _Xos_processLock	\
  (_XLockMutex_fn ? (*_XLockMutex_fn)(_Xglobal_lock,__FILE__,__LINE__) : 0)
#   endif
#   ifndef _Xos_processUnlock
#    define _Xos_processUnlock	\
  (_XUnlockMutex_fn ? (*_XUnlockMutex_fn)(_Xglobal_lock,__FILE__,__LINE__) : 0)
#   endif
#  else
#   ifndef XAllocIDs /* Xlibint.h does not have multiple include protection */
#    include <X11/Xfuncproto.h>	/* for NeedFunctionPrototypes */
extern void (*_XLockMutex_fn)(
#    if NeedFunctionPrototypes
    LockInfoPtr	/* lock */
#    endif
);
extern void (*_XUnlockMutex_fn)(
#    if NeedFunctionPrototypes
    LockInfoPtr	/* lock */
#    endif
);
#   endif
#   ifndef _Xos_processLock
#    define _Xos_processLock	\
  (_XLockMutex_fn ? ((*_XLockMutex_fn)(_Xglobal_lock), 0) : 0)
#   endif
#   ifndef _Xos_processUnlock
#    define _Xos_processUnlock	\
  (_XUnlockMutex_fn ? ((*_XUnlockMutex_fn)(_Xglobal_lock), 0) : 0)
#   endif
#  endif
# elif defined(XOS_USE_XT_LOCKING)
extern void (*_XtProcessLock)(void);
#  ifndef _XtintrinsicP_h
#   include <X11/Xfuncproto.h>	/* for NeedFunctionPrototypes */
extern void XtProcessLock(
#   if NeedFunctionPrototypes
    void
#   endif
);
extern void XtProcessUnlock(
#   if NeedFunctionPrototypes
    void
#   endif
);
#  endif
#  ifndef _Xos_isThreadInitialized
#   define _Xos_isThreadInitialized	_XtProcessLock
#  endif
#  ifndef _Xos_processLock
#   define _Xos_processLock		XtProcessLock()
#  endif
#  ifndef _Xos_processUnlock
#   define _Xos_processUnlock		XtProcessUnlock()
#  endif
# elif defined(XOS_USE_NO_LOCKING)
#  ifndef _Xos_isThreadInitialized
#   define _Xos_isThreadInitialized	0
#  endif
#  ifndef _Xos_processLock
#   define _Xos_processLock		0
#  endif
#  ifndef _Xos_processUnlock
#   define _Xos_processUnlock		0
#  endif
# endif

#endif /* !defined WIN32 */

/* 
 * Solaris 2.5 has SVR4 thread-safe API, but defines the POSIX
 * thread-safe feature test macro.  Fix the feature test macro.
 */
#if defined(sun) && defined(_POSIX_THREAD_SAFE_FUNCTIONS)
# undef _POSIX_THREAD_SAFE_FUNCTIONS
#endif

/*
 * LynxOS 3.1 defines _POSIX_THREAD_SAFE_FUNCTIONS but 
 * getpwuid_r has different semantics than defined by POSIX
 */
#if defined(Lynx) && defined(_POSIX_THREAD_SAFE_FUNCTIONS)
# undef _POSIX_THREAD_SAFE_FUNCTIONS
#endif


/***** <pwd.h> wrappers *****/

/*
 * Effective prototypes for <pwd.h> wrappers:
 *
 * #define X_INCLUDE_PWD_H
 * #define XOS_USE_..._LOCKING
 * #include <X11/Xos_r.h>
 *
 * typedef ... _Xgetpwparams;
 *
 * struct passwd* _XGetpwnam(const char *name, _Xgetpwparams);
 * struct passwd* _XGetpwuid(uid_t uid, _Xgetpwparams);
 */

#if defined(X_INCLUDE_PWD_H) && !defined(_XOS_INCLUDED_PWD_H)
# include <pwd.h>
# if defined(XUSE_MTSAFE_API) || defined(XUSE_MTSAFE_PWDAPI)
#  define XOS_USE_MTSAFE_PWDAPI 1
# endif
#endif

#if !defined(X_INCLUDE_PWD_H) || defined(_XOS_INCLUDED_PWD_H)
/* Do nothing */

#elif !defined(XTHREADS) && !defined(X_FORCE_USE_MTSAFE_API)
/* Use regular, unsafe API. */
# if defined(X_NOT_POSIX) && !defined(i386) && !defined(SYSV)
extern struct passwd *getpwuid(), *getpwnam();
# endif
typedef int _Xgetpwparams;	/* dummy */
# define _XGetpwuid(u,p)	getpwuid((u))
# define _XGetpwnam(u,p)	getpwnam((u))

#elif !defined(XOS_USE_MTSAFE_PWDAPI) || defined(XNO_MTSAFE_PWDAPI)
/* UnixWare 2.0, or other systems with thread support but no _r API. */
typedef struct {
  struct passwd pws;
  char   pwbuf[1024];
  struct passwd* pwp;
  size_t len;
} _Xgetpwparams;

/*
 * NetBSD and FreeBSD, at least, are missing several of the unixware passwd
 * fields.
 */
   
#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
__inline__ void _Xpw_copyPasswd(_Xgetpwparams p)
{
   memcpy(&(p).pws, (p).pwp, sizeof(struct passwd));

   (p).pws.pw_name = (p).pwbuf;
   (p).len = strlen((p).pwp->pw_name);
   strcpy((p).pws.pw_name, (p).pwp->pw_name);

   (p).pws.pw_passwd = (p).pws.pw_name + (p).len + 1;
   (p).len = strlen((p).pwp->pw_passwd);
   strcpy((p).pws.pw_passwd,(p).pwp->pw_passwd);

   (p).pws.pw_class = (p).pws.pw_passwd + (p).len + 1;
   (p).len = strlen((p).pwp->pw_class);
   strcpy((p).pws.pw_class, (p).pwp->pw_class);

   (p).pws.pw_gecos = (p).pws.pw_class + (p).len + 1;
   (p).len = strlen((p).pwp->pw_gecos);
   strcpy((p).pws.pw_gecos, (p).pwp->pw_gecos);

   (p).pws.pw_dir = (p).pws.pw_gecos + (p).len + 1;
   (p).len = strlen((p).pwp->pw_dir);
   strcpy((p).pws.pw_dir, (p).pwp->pw_dir);

   (p).pws.pw_shell = (p).pws.pw_dir + (p).len + 1;
   (p).len = strlen((p).pwp->pw_shell);
   strcpy((p).pws.pw_shell, (p).pwp->pw_shell);

   (p).pwp = &(p).pws;
}

#else
# define _Xpw_copyPasswd(p) \
   (memcpy(&(p).pws, (p).pwp, sizeof(struct passwd)), \
    ((p).pws.pw_name = (p).pwbuf), \
    ((p).len = strlen((p).pwp->pw_name)), \
    strcpy((p).pws.pw_name, (p).pwp->pw_name), \
    ((p).pws.pw_passwd = (p).pws.pw_name + (p).len + 1), \
    ((p).len = strlen((p).pwp->pw_passwd)), \
    strcpy((p).pws.pw_passwd,(p).pwp->pw_passwd), \
    ((p).pws.pw_age = (p).pws.pw_passwd + (p).len + 1), \
    ((p).len = strlen((p).pwp->pw_age)), \
    strcpy((p).pws.pw_age, (p).pwp->pw_age), \
    ((p).pws.pw_comment = (p).pws.pw_age + (p).len + 1), \
    ((p).len = strlen((p).pwp->pw_comment)), \
    strcpy((p).pws.pw_comment, (p).pwp->pw_comment), \
    ((p).pws.pw_gecos = (p).pws.pw_comment + (p).len + 1), \
    ((p).len = strlen((p).pwp->pw_gecos)), \
    strcpy((p).pws.pw_gecos, (p).pwp->pw_gecos), \
    ((p).pws.pw_dir = (p).pws.pw_comment + (p).len + 1), \
    ((p).len = strlen((p).pwp->pw_dir)), \
    strcpy((p).pws.pw_dir, (p).pwp->pw_dir), \
    ((p).pws.pw_shell = (p).pws.pw_dir + (p).len + 1), \
    ((p).len = strlen((p).pwp->pw_shell)), \
    strcpy((p).pws.pw_shell, (p).pwp->pw_shell), \
    ((p).pwp = &(p).pws), \
    0 )
#endif
# define _XGetpwuid(u,p) \
( (_Xos_processLock), \
  (((p).pwp = getpwuid((u))) ? _Xpw_copyPasswd(p) : 0), \
  (_Xos_processUnlock), \
  (p).pwp )
# define _XGetpwnam(u,p) \
( (_Xos_processLock), \
  (((p).pwp = getpwnam((u))) ? _Xpw_copyPasswd(p) : 0), \
  (_Xos_processUnlock), \
  (p).pwp )

#elif !defined(_POSIX_THREAD_SAFE_FUNCTIONS)
/* SVR4 threads, AIX 4.2.0 and earlier and OSF/1 3.2 and earlier pthreads */
typedef struct {
  struct passwd pws;
  char pwbuf[X_LINE_MAX];
} _Xgetpwparams;
# if defined(_POSIX_REENTRANT_FUNCTIONS) || !defined(SVR4) || defined(Lynx)
#  ifndef Lynx
#   define _XGetpwuid(u,p) \
((getpwuid_r((u),&(p).pws,(p).pwbuf,sizeof((p).pwbuf)) == -1) ? NULL : &(p).pws)
#   define _XGetpwnam(u,p) \
((getpwnam_r((u),&(p).pws,(p).pwbuf,sizeof((p).pwbuf)) == -1) ? NULL : &(p).pws)
#  else /* Lynx */
#   define _XGetpwuid(u,p) \
((getpwuid_r(&(p).pws,(u),(p).pwbuf,sizeof((p).pwbuf)) == -1) ? NULL : &(p).pws)
#   define _XGetpwnam(u,p) \
((getpwnam_r(&(p).pws,(u),(p).pwbuf,sizeof((p).pwbuf)) == -1) ? NULL : &(p).pws)
#  endif
# else /* SVR4 */
#  define _XGetpwuid(u,p) \
((getpwuid_r((u),&(p).pws,(p).pwbuf,sizeof((p).pwbuf)) == NULL) ? NULL : &(p).pws)
#  define _XGetpwnam(u,p) \
((getpwnam_r((u),&(p).pws,(p).pwbuf,sizeof((p).pwbuf)) == NULL) ? NULL : &(p).pws)
# endif /* SVR4 */

#else /* _POSIX_THREAD_SAFE_FUNCTIONS */
/* Digital UNIX 4.0, but not (beta) T4.0-1 */
# if defined(__osf__)
/* OSF/1 V4.0 <pwd.h> doesn't declare the _P routines, breaking under C++. */
extern int _Pgetpwuid_r(uid_t, struct passwd *, char *, size_t, struct passwd **);
extern int _Pgetpwnam_r(const char *, struct passwd *, char *, size_t, struct passwd **);
# endif
typedef struct {
  struct passwd pws;
  char pwbuf[X_LINE_MAX];
  struct passwd* pwp;
} _Xgetpwparams;
typedef int _Xgetpwret;
# define _XGetpwuid(u,p) \
((getpwuid_r((u),&(p).pws,(p).pwbuf,sizeof((p).pwbuf),&(p).pwp) == -1) ? \
 NULL : (p).pwp)
# define _XGetpwnam(u,p) \
((getpwnam_r((u),&(p).pws,(p).pwbuf,sizeof((p).pwbuf),&(p).pwp) == -1) ? \
 NULL : (p).pwp)
#endif /* X_INCLUDE_PWD_H */

#if defined(X_INCLUDE_PWD_H) && !defined(_XOS_INCLUDED_PWD_H)
# define _XOS_INCLUDED_PWD_H
#endif


/***** <netdb.h> wrappers *****/

/* 
 * Effective prototypes for <netdb.h> wrappers:
 *
 * NOTE: On systems lacking the appropriate _r functions Gethostbyname(),
 *	Gethostbyaddr(), and Getservbyname() do NOT copy the host or
 *	protocol lists!
 *
 * #define X_INCLUDE_NETDB_H
 * #define XOS_USE_..._LOCKING
 * #include <X11/Xos_r.h>
 *
 * typedef ... _Xgethostbynameparams;
 * typedef ... _Xgetservbynameparams;
 *
 * struct hostent* _XGethostbyname(const char* name,_Xgethostbynameparams);
 * struct hostent* _XGethostbyaddr(const char* addr, int len, int type, 
 *				   _Xgethostbynameparams);
 * struct servent* _XGetservbyname(const char* name, const char* proto,
 *				 _Xgetservbynameparams);
 */

#if defined(X_INCLUDE_NETDB_H) && !defined(_XOS_INCLUDED_NETDB_H) \
    && !defined(WIN32)
# include <netdb.h>
# if defined(XUSE_MTSAFE_API) || defined(XUSE_MTSAFE_NETDBAPI)
#  define XOS_USE_MTSAFE_NETDBAPI 1
# endif
#endif

#if !defined(X_INCLUDE_NETDB_H) || defined(_XOS_INCLUDED_NETDB_H)
/* Do nothing. */

#elif !defined(XTHREADS) && !defined(X_FORCE_USE_MTSAFE_API)
/* Use regular, unsafe API. */
typedef int _Xgethostbynameparams; /* dummy */
typedef int _Xgetservbynameparams; /* dummy */
# define _XGethostbyname(h,hp)		gethostbyname((h))
# define _XGethostbyaddr(a,al,t,hp)	gethostbyaddr((a),(al),(t))
# define _XGetservbyname(s,p,sp)	getservbyname((s),(p))

#elif !defined(XOS_USE_MTSAFE_NETDBAPI) || defined(XNO_MTSAFE_NETDBAPI)
/* UnixWare 2.0, or other systems with thread support but no _r API. */
/* WARNING:  The h_addr_list and s_aliases values are *not* copied! */

#if defined(__NetBSD__) || defined(__FreeBSD__)
#include <sys/param.h>
#endif

typedef struct {
  struct hostent hent;
  char           h_name[MAXHOSTNAMELEN];
  struct hostent *hptr;
} _Xgethostbynameparams;
typedef struct {
  struct servent sent;
  char           s_name[255];
  char		 s_proto[255];
  struct servent *sptr;
} _Xgetservbynameparams;
# define _Xg_copyHostent(hp) \
   (memcpy(&(hp).hent, (hp).hptr, sizeof(struct hostent)), \
    strcpy((hp).h_name, (hp).hptr->h_name), \
    ((hp).hent.h_name = (hp).h_name), \
    ((hp).hptr = &(hp).hent), \
     0 )
# define _Xg_copyServent(sp) \
   (memcpy(&(sp).sent, (sp).sptr, sizeof(struct servent)), \
    strcpy((sp).s_name, (sp).sptr->s_name), \
    ((sp).sent.s_name = (sp).s_name), \
    strcpy((sp).s_proto, (sp).sptr->s_proto), \
    ((sp).sent.s_proto = (sp).s_proto), \
    ((sp).sptr = &(sp).sent), \
    0 )
# define _XGethostbyname(h,hp) \
   ((_Xos_processLock), \
    (((hp).hptr = gethostbyname((h))) ? _Xg_copyHostent(hp) : 0), \
    (_Xos_processUnlock), \
    (hp).hptr )
# define _XGethostbyaddr(a,al,t,hp) \
   ((_Xos_processLock), \
    (((hp).hptr = gethostbyaddr((a),(al),(t))) ? _Xg_copyHostent(hp) : 0), \
    (_Xos_processUnlock), \
    (hp).hptr )
# define _XGetservbyname(s,p,sp) \
   ((_Xos_processLock), \
    (((sp).sptr = getservbyname((s),(p))) ? _Xg_copyServent(sp) : 0), \
    (_Xos_processUnlock), \
    (sp).sptr )

#elif defined(XUSE_NETDB_R_API)
/*
 * POSIX does not specify _r equivalents for <netdb.h> API, but some
 * vendors provide them anyway.  Use them only when explicitly asked.
 */
# ifdef _POSIX_REENTRANT_FUNCTIONS
#  ifndef _POSIX_THREAD_SAFE_FUNCTIONS
#   if defined(AIXV3) || defined(AIXV4) || defined(__osf__)
#    define X_POSIX_THREAD_SAFE_FUNCTIONS 1
#   endif
#  endif
# endif
# ifdef _POSIX_THREAD_SAFE_FUNCTIONS
#  define X_POSIX_THREAD_SAFE_FUNCTIONS 1
# endif

# ifndef X_POSIX_THREAD_SAFE_FUNCTIONS
typedef struct {
    struct hostent      hent;
    char                hbuf[X_LINE_MAX];
    int                 herr;
} _Xgethostbynameparams;
typedef struct {
    struct servent      sent;
    char                sbuf[X_LINE_MAX];
} _Xgetservbynameparams;
#  define _XGethostbyname(h,hp) \
  gethostbyname_r((h),&(hp).hent,(hp).hbuf,sizeof((hp).hbuf),&(hp).herr)
#  define _XGethostbyaddr(a,al,t,hp) \
  gethostbyaddr_r((a),(al),(t),&(hp).hent,(hp).hbuf,sizeof((hp).hbuf),&(hp).herr)
#  define _XGetservbyname(s,p,sp) \
  getservbyname_r((s),(p),&(sp).sent,(sp).sbuf,sizeof((sp).sbuf))
# else
typedef struct {
  struct hostent      hent;
  struct hostent_data hdata;
} _Xgethostbynameparams;
typedef struct {
  struct servent      sent;
  struct servent_data sdata;
} _Xgetservbynameparams;
#  define _XGethostbyname(h,hp) \
  (bzero((char*)&(hp).hdata,sizeof((hp).hdata)),	\
   ((gethostbyname_r((h),&(hp).hent,&(hp).hdata) == -1) ? NULL : &(hp).hent))
#  define _XGethostbyaddr(a,al,t,hp) \
  (bzero((char*)&(hp).hdata,sizeof((hp).hdata)),	\
   ((gethostbyaddr_r((a),(al),(t),&(hp).hent,&(hp).hdata) == -1) ? NULL : &(hp).hent))
#  define _XGetservbyname(s,p,sp) \
  (bzero((char*)&(sp).sdata,sizeof((sp).sdata)),	\
   ((getservbyname_r((s),(p),&(sp).sent,&(sp).sdata) == -1) ? NULL : &(sp).sent) )
# endif
# ifdef X_POSIX_THREAD_SAFE_FUNCTIONS
#  undef X_POSIX_THREAD_SAFE_FUNCTIONS
# endif

#else
/* The regular API is assumed to be MT-safe under POSIX. */
typedef int _Xgethostbynameparams; /* dummy */
typedef int _Xgetservbynameparams; /* dummy */
# define _XGethostbyname(h,hp)		gethostbyname((h))
# define _XGethostbyaddr(a,al,t,hp)	gethostbyaddr((a),(al),(t))
# define _XGetservbyname(s,p,sp)	getservbyname((s),(p))
#endif /* X_INCLUDE_NETDB_H */

#if defined(X_INCLUDE_NETDB_H) && !defined(_XOS_INCLUDED_NETDB_H)
# define _XOS_INCLUDED_NETDB_H
#endif


/***** <dirent.h> wrappers *****/

/*
 * Effective prototypes for <dirent.h> wrappers:
 *
 * #define X_INCLUDE_DIRENT_H
 * #define XOS_USE_..._LOCKING
 * #include <X11/Xos_r.h>
 * 
 * typedef ... _Xreaddirparams;
 *
 * struct dirent *_XReaddir(DIR *dir_pointer, _Xreaddirparams);
 */

#if defined(X_INCLUDE_DIRENT_H) && !defined(_XOS_INCLUDED_DIRENT_H)
# include <sys/types.h>
# if !defined(X_NOT_POSIX) || defined(SYSV) || defined(USG)
#  include <dirent.h>
# else
#  include <sys/dir.h>
#  ifndef dirent
#   define dirent direct
#  endif
# endif
# if defined(XUSE_MTSAFE_API) || defined(XUSE_MTSAFE_DIRENTAPI)
#  define XOS_USE_MTSAFE_DIRENTAPI 1
# endif
#endif

#if !defined(X_INCLUDE_DIRENT_H) || defined(_XOS_INCLUDED_DIRENT_H)
/* Do nothing. */

#elif !defined(XTHREADS) && !defined(X_FORCE_USE_MTSAFE_API)
/* Use regular, unsafe API. */
typedef int _Xreaddirparams;	/* dummy */
# define _XReaddir(d,p)	readdir(d)

#elif !defined(XOS_USE_MTSAFE_DIRENTAPI) || defined(XNO_MTSAFE_DIRENTAPI)
/* Systems with thread support but no _r API. */
typedef struct {
  struct dirent *result;
  struct dirent dir_entry;
# ifdef _POSIX_PATH_MAX
  char buf[_POSIX_PATH_MAX];
# elif defined(NAME_MAX)
  char buf[NAME_MAX];
# else
  char buf[255];
# endif
} _Xreaddirparams;

# define _XReaddir(d,p)	\
 ( (_Xos_processLock),						 \
   (((p).result = readdir((d))) ?				 \
    (memcpy(&((p).dir_entry), (p).result, (p).result->d_reclen), \
     ((p).result = &(p).dir_entry), 0) :			 \
    0),								 \
   (_Xos_processUnlock),					 \
   (p).result )

#else
typedef struct {
  struct dirent *result;
  struct dirent dir_entry;
# ifdef _POSIX_PATH_MAX
  char buf[_POSIX_PATH_MAX];
# elif defined(NAME_MAX)
  char buf[NAME_MAX];
# else
  char buf[255];
# endif
} _Xreaddirparams;

# if defined(AIXV3) || defined(AIXV4) || defined(_POSIX_THREAD_SAFE_FUNCTIONS)
/* AIX defines the draft POSIX symbol, but uses the final API. */
/* POSIX final API, returns (int)0 on success. */
#  if defined(__osf__)
/* OSF/1 V4.0 <dirent.h> doesn't declare _Preaddir_r, breaking under C++. */
extern int _Preaddir_r(DIR *, struct dirent *, struct dirent **);
#  endif
#  define _XReaddir(d,p)						\
    (readdir_r((d), &((p).dir_entry), &((p).result)) ? NULL : (p).result)
# elif defined(_POSIX_REENTRANT_FUNCTIONS) && defined(__osf__)
/*
 * OSF/1 V3.2 readdir_r() will SEGV if the main program is not
 * explicitly linked with -lc_r.  The library REQUIREDLIBS don't help.
 * Assume that if threads have been initialized we're linked properly.
 */
#  define _XReaddir(d,p)						\
 ( (_Xos_isThreadInitialized) ?						\
   (readdir_r((d), &((p).dir_entry)) ? NULL : &((p).dir_entry)) :	\
   ((_Xos_processLock),							\
    (((p).result = readdir((d))) ?					\
     (memcpy(&((p).dir_entry), (p).result, (p).result->d_reclen),	\
      ((p).result = &(p).dir_entry), 0) :				\
     0),								\
    (_Xos_processUnlock),						\
    (p).result) )
# elif defined(_POSIX_REENTRANT_FUNCTIONS)
/* POSIX draft API, returns (int)0 on success. */
#  define _XReaddir(d,p)	\
    (readdir_r((d),&((p).dir_entry)) ? NULL : &((p).dir_entry))
# elif defined(SVR4)
/* Pre-POSIX API, returns non-NULL on success. */
#  define _XReaddir(d,p)	(readdir_r((d), &(p).dir_entry))
# else
/* We have no idea what is going on.  Fake it all using process locks. */
#  define _XReaddir(d,p)	\
    ( (_Xos_processLock),						\
      (((p).result = readdir((d))) ?					\
       (memcpy(&((p).dir_entry), (p).result, (p).result->d_reclen),	\
	((p).result = &(p).dir_entry), 0) :				\
       0),								\
      (_Xos_processUnlock),						\
      (p).result )
# endif
#endif /* X_INCLUDE_DIRENT_H */

#if defined(X_INCLUDE_DIRENT_H) && !defined(_XOS_INCLUDED_DIRENT_H)
# define _XOS_INCLUDED_DIRENT_H
#endif


/***** <unistd.h> wrappers *****/

/*
 * Effective prototypes for <unistd.h> wrappers:
 *
 * #define X_INCLUDE_UNISTD_H
 * #define XOS_USE_..._LOCKING
 * #include <X11/Xos_r.h>
 * 
 * typedef ... _Xgetloginparams;
 * typedef ... _Xttynameparams;
 *
 * char *_XGetlogin(_Xgetloginparams);
 * char *_XTtyname(int, _Xttynameparams);
 */

#if defined(X_INCLUDE_UNISTD_H) && !defined(_XOS_INCLUDED_UNISTD_H)
/* <unistd.h> already included by <X11/Xos.h> */
# if defined(XUSE_MTSAFE_API) || defined(XUSE_MTSAFE_UNISTDAPI)
#  define XOS_USE_MTSAFE_UNISTDAPI 1
# endif
#endif

#if !defined(X_INCLUDE_UNISTD_H) || defined(_XOS_INCLUDED_UNISTD_H)
/* Do nothing. */

#elif !defined(XTHREADS) && !defined(X_FORCE_USE_MTSAFE_API)
/* Use regular, unsafe API. */
typedef int _Xgetloginparams;	/* dummy */
typedef int _Xttynameparams;	/* dummy */
# define _XGetlogin(p)	getlogin()
# define _XTtyname(f)	ttyname((f))

#elif !defined(XOS_USE_MTSAFE_UNISTDAPI) || defined(XNO_MTSAFE_UNISTDAPI)
/* Systems with thread support but no _r API. */
typedef struct {
  char *result;
# if defined(MAXLOGNAME)
  char buf[MAXLOGNAME];
# elif defined(LOGIN_NAME_MAX)
  char buf[LOGIN_NAME_MAX];
# else
  char buf[64];
# endif
} _Xgetloginparams;
typedef struct {
  char *result;
# ifdef TTY_NAME_MAX
  char buf[TTY_NAME_MAX];
# elif defined(_POSIX_TTY_NAME_MAX)
  char buf[_POSIX_TTY_NAME_MAX];
# elif defined(_POSIX_PATH_MAX)
  char buf[_POSIX_PATH_MAX];
# else
  char buf[256];
# endif
} _Xttynameparams;

# define _XGetlogin(p) \
 ( (_Xos_processLock), \
   (((p).result = getlogin()) ? \
    (strncpy((p).buf, (p).result, sizeof((p).buf)), \
     ((p).buf[sizeof((p).buf)-1] = '\0'), \
     ((p).result = (p).buf), 0) : 0), \
   (_Xos_processUnlock), \
   (p).result )
#define _XTtyname(f,p) \
 ( (_Xos_processLock), \
   (((p).result = ttyname(f)) ? \
    (strncpy((p).buf, (p).result, sizeof((p).buf)), \
     ((p).buf[sizeof((p).buf)-1] = '\0'), \
     ((p).result = (p).buf), 0) : 0), \
   (_Xos_processUnlock), \
   (p).result )

#elif defined(_POSIX_THREAD_SAFE_FUNCTIONS) || defined(_POSIX_REENTRANT_FUNCTIONS)
/* POSIX API.
 *
 * extern int getlogin_r(char *, size_t);
 * extern int ttyname_r(int, char *, size_t);
 */
typedef struct {
# if defined(MAXLOGNAME)
  char buf[MAXLOGNAME];
# elif defined(LOGIN_NAME_MAX)
  char buf[LOGIN_NAME_MAX];
# else
  char buf[64];
# endif
} _Xgetloginparams;
typedef struct {
# ifdef TTY_NAME_MAX
  char buf[TTY_NAME_MAX];
# elif defined(_POSIX_TTY_NAME_MAX)
  char buf[_POSIX_TTY_NAME_MAX];
# elif defined(_POSIX_PATH_MAX)
  char buf[_POSIX_PATH_MAX];
# else
  char buf[256];
# endif
} _Xttynameparams;

# define _XGetlogin(p)	(getlogin_r((p).buf, sizeof((p).buf)) ? NULL : (p).buf)
# define _XTtyname(f,p)	\
	(ttyname_r((f), (p).buf, sizeof((p).buf)) ? NULL : (p).buf)

#else
/* Pre-POSIX API.
 *
 * extern char *getlogin_r(char *, size_t);
 * extern char *ttyname_r(int, char *, size_t);
 */
typedef struct {
# if defined(MAXLOGNAME)
  char buf[MAXLOGNAME];
# elif defined(LOGIN_NAME_MAX)
  char buf[LOGIN_NAME_MAX];
# else
  char buf[64];
# endif
} _Xgetloginparams;
typedef struct {
# ifdef TTY_NAME_MAX
  char buf[TTY_NAME_MAX];
# elif defined(_POSIX_TTY_NAME_MAX)
  char buf[_POSIX_TTY_NAME_MAX];
# elif defined(_POSIX_PATH_MAX)
  char buf[_POSIX_PATH_MAX];
# else
  char buf[256];
# endif
} _Xttynameparams;

# define _XGetlogin(p)	getlogin_r((p).buf, sizeof((p).buf))
# define _XTtyname(f,p)	ttyname_r((f), (p).buf, sizeof((p).buf))
#endif /* X_INCLUDE_UNISTD_H */

#if defined(X_INCLUDE_UNISTD_H) && !defined(_XOS_INCLUDED_UNISTD_H)
# define _XOS_INCLUDED_UNISTD_H
#endif


/***** <string.h> wrappers *****/

/*
 * Effective prototypes for <string.h> wrappers:
 *
 * #define X_INCLUDE_STRING_H
 * #define XOS_USE_..._LOCKING
 * #include <X11/Xos_r.h>
 *
 * typedef ... _Xstrtokparams;
 *
 * char *_XStrtok(char *, const char*, _Xstrtokparams);
 */

#if defined(X_INCLUDE_STRING_H) && !defined(_XOS_INCLUDED_STRING_H)
/* <string.h> has already been included by <X11/Xos.h> */
# if defined(XUSE_MTSAFE_API) || defined(XUSE_MTSAFE_STRINGAPI)
#  define XOS_USE_MTSAFE_STRINGAPI 1
# endif
#endif

#if !defined(X_INCLUDE_STRING_H) || defined(_XOS_INCLUDED_STRING_H)
/* Do nothing. */

#elif !defined(XTHREADS) && !defined(X_FORCE_USE_MTSAFE_API)
/* Use regular, unsafe API. */
typedef int _Xstrtokparams;	/* dummy */
# define _XStrtok(s1,s2,p)	strtok((s1),(s2))

#elif !defined(XOS_USE_MTSAFE_STRINGAPI) || defined(XNO_MTSAFE_STRINGAPI)
/* Systems with thread support but no _r API. */
typedef char *_Xstrtokparams;
# define _XStrtok(s1,s2,p) \
 ( (_Xos_processLock), \
   ((p) = strtok((s1),(s2))), \
   (_Xos_processUnlock), \
   (p) )

#else
/* POSIX or pre-POSIX API. */
typedef char * _Xstrtokparams;
# define _XStrtok(s1,s2,p)	strtok_r((s1),(s2),&(p))
#endif /* X_INCLUDE_STRING_H */


/***** <time.h> wrappers *****/

/*
 * Effective prototypes for <time.h> wrappers:
 *
 * #define X_INCLUDE_TIME_H
 * #define XOS_USE_..._LOCKING
 * #include <X11/Xos_r.h>
 *
 * typedef ... _Xatimeparams;
 * typedef ... _Xctimeparams;
 * typedef ... _Xgtimeparams;
 * typedef ... _Xltimeparams;
 *
 * char *_XAsctime(const struct tm *, _Xatimeparams);
 * char *_XCtime(const time_t *, _Xctimeparams);
 * struct tm *_XGmtime(const time_t *, _Xgtimeparams);
 * struct tm *_XLocaltime(const time_t *, _Xltimeparams);
 */

#if defined(X_INCLUDE_TIME_H) && !defined(_XOS_INCLUDED_TIME_H)
# include <time.h>
# if defined(XUSE_MTSAFE_API) || defined(XUSE_MTSAFE_TIMEAPI)
#  define XOS_USE_MTSAFE_TIMEAPI 1
# endif
#endif

#if !defined(X_INCLUDE_TIME_H) || defined(_XOS_INCLUDED_TIME_H)
/* Do nothing. */

#elif !defined(XTHREADS) && !defined(X_FORCE_USE_MTSAFE_API)
/* Use regular, unsafe API. */
typedef int _Xatimeparams;	/* dummy */
# define _XAsctime(t,p)		asctime((t))
typedef int _Xctimeparams;	/* dummy */
# define _XCtime(t,p)		ctime((t))
typedef int _Xgtimeparams;	/* dummy */
# define _XGmtime(t,p)		gmtime((t))
typedef int _Xltimeparams;	/* dummy */
# define _XLocaltime(t,p)	localtime((t))

#elif !defined(XOS_USE_MTSAFE_TIMEAPI) || defined(XNO_MTSAFE_TIMEAPI)
/* Systems with thread support but no _r API. */
typedef struct {
# ifdef TIMELEN
  char buf[TIMELEN];
# else
  char buf[26];
# endif
  char *result;
} _Xctimeparams, _Xatimeparams;
typedef struct {
  struct tm buf;
  struct tm *result;
} _Xgtimeparams, _Xltimeparams;
# define _XAsctime(t,p) \
 ( (_Xos_processLock), \
   (((p).result = asctime((t))) ? \
    (strncpy((p).buf, (p).result, sizeof((p).buf)), (p).result = &(p).buf) : \
    0), \
   (_Xos_processUnlock), \
   (p).result )
# define _XCtime(t,p) \
 ( (_Xos_processLock), \
   (((p).result = ctime((t))) ? \
    (strncpy((p).buf, (p).result, sizeof((p).buf)), (p).result = &(p).buf) : \
    0), \
   (_Xos_processUnlock), \
   (p).result )
# define _XGmtime(t,p) \
 ( (_Xos_processLock), \
   (((p).result = gmtime(t)) ? \
    (memcpy(&(p).buf, (p).result, sizeof((p).buf)), (p).result = &(p).buf) : \
    0), \
   (_Xos_processUnlock), \
   (p).result )
# define _XLocaltime(t,p) \
 ( (_Xos_processLock), \
   (((p).result = localtime(t)) ? \
    (memcpy(&(p).buf, (p).result, sizeof((p).buf)), (p).result = &(p).buf) : \
    0), \
   (_Xos_processUnlock), \
   (p).result )

#elif !defined(_POSIX_THREAD_SAFE_FUNCTIONS) && (defined(__osf__) || defined(hpV4))
/* Returns (int)0 on success.  OSF/1 v3.2, HP/UX 10
 *
 * extern int asctime_r(const struct tm *timeptr, char *buffer, int buflen);
 * extern int ctime_r(const time_t *timer, char *buffer, int buflen);
 * extern int gmtime_r(const time_t *timer, struct tm *result);
 * extern int localtime_r(const time_t *timer, struct tm *result);
 */
# ifdef TIMELEN
typedef char _Xatimeparams[TIMELEN];
typedef char _Xctimeparams[TIMELEN];
# else
typedef char _Xatimeparams[26];
typedef char _Xctimeparams[26];
# endif
typedef struct tm _Xgtimeparams;
typedef struct tm _Xltimeparams;
# define _XAsctime(t,p)		(asctime_r((t),(p),sizeof((p))) ? NULL : (p))
# define _XCtime(t,p)		(ctime_r((t),(p),sizeof((p))) ? NULL : (p))
# define _XGmtime(t,p)		(gmtime_r((t),&(p)) ? NULL : &(p))
# define _XLocaltime(t,p)	(localtime_r((t),&(p)) ? NULL : &(p))

#elif !defined(_POSIX_THREAD_SAFE_FUNCTIONS) && defined(sun)
/* Returns NULL on failure.  Solaris 2.5
 *
 * extern char *asctime_r(const struct tm *tm,char *buf, int buflen);
 * extern char *ctime_r(const time_t *clock, char *buf, int buflen);
 * extern struct tm *gmtime_r(const time_t *clock, struct tm *res);
 * extern struct tm *localtime_r(const time_t *clock, struct tm *res);
 */
# ifdef TIMELEN
typedef char _Xatimeparams[TIMELEN];
typedef char _Xctimeparams[TIMELEN];
# else
typedef char _Xatimeparams[26];
typedef char _Xctimeparams[26];
# endif
typedef struct tm _Xgtimeparams;
typedef struct tm _Xltimeparams;
# define _XAsctime(t,p)		asctime_r((t),(p),sizeof((p)))
# define _XCtime(t,p)		ctime_r((t),(p),sizeof((p)))
# define _XGmtime(t,p)		gmtime_r((t),&(p))
# define _XLocaltime(t,p)	localtime_r((t),&(p))

#else /* defined(_POSIX_THREAD_SAFE_FUNCTIONS) */
/* POSIX final API.  OSF/1 v4.0, AIX, etc.
 *
 * extern char *asctime_r(const struct tm *timeptr, char *buffer);
 * extern char *ctime_r(const time_t *timer, char *buffer);
 * extern struct tm *gmtime_r(const time_t *timer, struct tm *result);
 * extern struct tm *localtime_r(const time_t *timer, struct tm *result);
 */
# if defined(__osf__)
/* OSF/1 V4.0 <time.h> doesn't declare the _P routines, breaking under C++. */
extern char *_Pasctime_r(const struct tm *, char *);
extern char *_Pctime_r(const time_t *, char *);
extern struct tm *_Plocaltime_r(const time_t *, struct tm *);
# endif
# ifdef TIMELEN
typedef char _Xatimeparams[TIMELEN];
typedef char _Xctimeparams[TIMELEN];
# else
typedef char _Xatimeparams[26];
typedef char _Xctimeparams[26];
# endif
typedef struct tm _Xgtimeparams;
typedef struct tm _Xltimeparams;
# define _XAsctime(t,p)		asctime_r((t),(p))
# define _XCtime(t,p)		ctime_r((t),(p))
# define _XGmtime(t,p)		gmtime_r((t),&(p))
# define _XLocaltime(t,p)	localtime_r((t),&(p))
#endif /* X_INCLUDE_TIME_H */

#if defined(X_INCLUDE_TIME_H) && !defined(_XOS_INCLUDED_TIME_H)
# define _XOS_INCLUDED_TIME_H
#endif


/***** <grp.h> wrappers *****/

/*
 * Effective prototypes for <grp.h> wrappers:
 *
 * NOTE: On systems lacking appropriate _r functions Getgrgid() and
 *	Getgrnam() do NOT copy the list of group members!
 *
 * Remember that fgetgrent(), setgrent(), getgrent(), and endgrent()
 * are not included in POSIX.
 *
 * #define X_INCLUDE_GRP_H
 * #define XOS_USE_..._LOCKING
 * #include <X11/Xos_r.h>
 *
 * typedef ... _Xgetgrparams;
 *
 * struct group *_XGetgrgid(gid_t, _Xgetgrparams);
 * struct group *_XGetgrnam(const char *, _Xgetgrparams);
 */

#if defined(X_INCLUDE_GRP_H) && !defined(_XOS_INCLUDED_GRP_H)
# include <grp.h>
# if defined(XUSE_MTSAFE_API) || defined(XUSE_MTSAFE_GRPAPI)
#  define XOS_USE_MTSAFE_GRPAPI 1
# endif
#endif

#if !defined(X_INCLUDE_GRP_H) || defined(_XOS_INCLUDED_GRP_H)
/* Do nothing. */

#elif !defined(XTHREADS) && !defined(X_FORCE_USE_MTSAFE_API)
/* Use regular, unsafe API. */
typedef int _Xgetgrparams;	/* dummy */
#define _XGetgrgid(g,p)	getgrgid((g))
#define _XGetgrnam(n,p)	getgrnam((n))

#elif !defined(XOS_USE_MTSAFE_GRPAPI) || defined(XNO_MTSAFE_GRPAPI)
/* Systems with thread support but no _r API.  UnixWare 2.0. */
typedef struct {
  struct group grp;
  char buf[X_LINE_MAX];	/* Should be sysconf(_SC_GETGR_R_SIZE_MAX)? */
  struct group *pgrp;
  size_t len;
} _Xgetgrparams;
#ifdef SVR4
/* Copy the gr_passwd field too. */
# define _Xgrp_copyGroup(p) \
 ( memcpy(&(p).grp, (p).pgrp, sizeof(struct group)), \
   ((p).grp.gr_name = (p).buf), \
   ((p).len = strlen((p).pgrp->gr_name)), \
   strcpy((p).grp.gr_name, (p).pgrp->gr_name), \
   ((p).grp.gr_passwd = (p).grp.gr_name + (p).len + 1), \
   ((p).pgrp = &(p).grp), \
   0 )
#else
# define _Xgrp_copyGroup(p) \
 ( memcpy(&(p).grp, (p).pgrp, sizeof(struct group)), \
   ((p).grp.gr_name = (p).buf), \
   strcpy((p).grp.gr_name, (p).pgrp->gr_name), \
   ((p).pgrp = &(p).grp), \
   0 )
#endif
#define _XGetgrgid(g,p) \
 ( (_Xos_processLock), \
   (((p).pgrp = getgrgid((g))) ? _Xgrp_copyGroup(p) : 0), \
   (_Xos_processUnlock), \
   (p).pgrp )
#define _XGetgrnam(n,p) \
 ( (_Xos_processLock), \
   (((p).pgrp = getgrnam((n))) ? _Xgrp_copyGroup(p) : 0), \
   (_Xos_processUnlock), \
   (p).pgrp )

#elif !defined(_POSIX_THREAD_SAFE_FUNCTIONS) && (defined(sun) || defined(__osf__))
/* Non-POSIX API.  Solaris, DEC v3.2.
 *
 * extern struct group *getgrgid_r(gid_t, struct group *, char *, int);
 * extern struct group *getgrnam_r(const char *, struct group *, char *, int);
 */
typedef struct {
  struct group grp;
  char buf[X_LINE_MAX];	/* Should be sysconf(_SC_GETGR_R_SIZE_MAX)? */
} _Xgetgrparams;
#define _XGetgrgid(g,p)	getgrgid_r((g), &(p).grp, (p).buf, sizeof((p).buf))
#define _XGetgrnam(n,p)	getgrnam_r((n), &(p).grp, (p).buf, sizeof((p).buf))

#elif !defined(_POSIX_THREAD_SAFE_FUNCTIONS)
/* Non-POSIX API.  HP/UX 10, AIX 4.
 *
 * extern int getgrgid_r(gid_t, struct group *, char *, int);
 * extern int getgrnam_r(const char *, struct group *, char *, int);
 */
typedef struct {
  struct group grp;
  char buf[X_LINE_MAX];	/* Should be sysconf(_SC_GETGR_R_SIZE_MAX)? */
} _Xgetgrparams;
#define _XGetgrgid(g,p)	\
 ((getgrgid_r((g), &(p).grp, (p).buf, sizeof((p).buf)) ? NULL : &(p).grp))
#define _XGetgrnam(n,p)	\
 ((getgrnam_r((n), &(p).grp, (p).buf, sizeof((p).buf)) ? NULL : &(p).grp))

#else
/* POSIX final API.  DEC v4.0, IRIX 6.2.
 *
 * int getgrgid_r(gid_t, struct group *, char *, size_t, struct group **);
 * int getgrnam_r(const char *, struct group *, char *, size_t, struct group **);
 */
# if defined(__osf__)
/* OSF/1 V4.0 <grp.h> doesn't declare the _P routines, breaking under C++. */
extern int _Pgetgrgid_r(gid_t, struct group *, char *, size_t, struct group **);
extern int _Pgetgrnam_r(const char *, struct group *, char *, size_t, struct group **);
# endif
typedef struct {
  struct group grp;
  char buf[X_LINE_MAX];	/* Should be sysconf(_SC_GETGR_R_SIZE_MAX)? */
  struct group *result;
} _Xgetgrparams;

#define _XGetgrgid(g,p)	\
 ((getgrgid_r((g), &(p).grp, (p).buf, sizeof((p).buf), &(p).result) ? \
   NULL : (p).result))
#define _XGetgrnam(n,p)	\
 ((getgrnam_r((n), &(p).grp, (p).buf, sizeof((p).buf), &(p).result) ? \
   NULL : (p).result))
#endif

#if defined(X_INCLUDE_GRP_H) && !defined(_XOS_INCLUDED_GRP_H)
# define _XOS_INCLUDED_GRP_H
#endif


#ifdef __cplusplus
}  /* Close scope of 'extern "C"' declaration which encloses file. */
#endif