summaryrefslogtreecommitdiffstats
path: root/src/os_unix.h
blob: d87ec90f48cf7b6088e49648afbabfb0e94fcae1 (plain)
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
/* vi:set ts=8 sts=4 sw=4 noet:
 *
 * VIM - Vi IMproved	by Bram Moolenaar
 *
 * Do ":help uganda"  in Vim to read copying and usage conditions.
 * Do ":help credits" in Vim to see a list of people who contributed.
 */

/*
 * NextStep has a problem with configure, undefine a few things:
 */
#ifdef NeXT
# ifdef HAVE_UTIME
#  undef HAVE_UTIME
# endif
# ifdef HAVE_SYS_UTSNAME_H
#  undef HAVE_SYS_UTSNAME_H
# endif
#endif

#include <stdio.h>
#include <ctype.h>

#ifdef VAXC
# include <types.h>
# include <stat.h>
#else
# include <sys/types.h>
# include <sys/stat.h>
#endif

#ifdef HAVE_STDLIB_H
# include <stdlib.h>
#endif

#ifdef __CYGWIN__
# define WIN32UNIX	// Compiling for Win32 using Unix files.
# define BINARY_FILE_IO

# define CASE_INSENSITIVE_FILENAME
# define USE_FNAME_CASE	// Fix filename case differences.
#endif

// On AIX 4.2 there is a conflicting prototype for ioctl() in stropts.h and
// unistd.h.  This hack should fix that (suggested by Jeff George).
// But on AIX 4.3 it's alright (suggested by Jake Hamby).
#if defined(FEAT_GUI) && defined(_AIX) && !defined(_AIX43) && !defined(_NO_PROTO)
# define _NO_PROTO
#endif

#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif

#ifdef HAVE_LIBC_H
# include <libc.h>		    // for NeXT
#endif

#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>	    // defines BSD, if it's a BSD system
#endif

/*
 * Using getcwd() is preferred, because it checks for a buffer overflow.
 * Don't use getcwd() on systems do use system("sh -c pwd").  There is an
 * autoconf check for this.
 * Use getcwd() anyway if getwd() isn't present.
 */
#if defined(HAVE_GETCWD) && !(defined(BAD_GETCWD) && defined(HAVE_GETWD))
# define USE_GETCWD
#endif

// always use unlink() to remove files
#ifndef PROTO
# ifdef VMS
#  define vim_mkdir(x, y) mkdir((char *)vms_fixfilename(x), y)
#  define mch_rmdir(x)  delete((char *)vms_fixfilename(x))
#  define mch_remove(x) delete((char *)vms_fixfilename(x))
# else
#  define vim_mkdir(x, y) mkdir((char *)(x), y)
#  define mch_rmdir(x) rmdir((char *)(x))
#  define mch_remove(x) unlink((char *)(x))
# endif
#endif

// The number of arguments to a signal handler is configured here.
// It used to be a long list of almost all systems. Any system that doesn't
// have an argument???
#define SIGHASARG

#ifdef SIGHASARG
# define SIGPROTOARG	(int)
# define SIGDEFARG(s)	(int s UNUSED)
# define SIGDUMMYARG	0
#else
# define SIGPROTOARG   (void)
# define SIGDEFARG(s)  ()
# define SIGDUMMYARG
#endif

#ifdef HAVE_DIRENT_H
# include <dirent.h>
# ifndef NAMLEN
#  define NAMLEN(dirent) strlen((dirent)->d_name)
# endif
#else
# define dirent direct
# define NAMLEN(dirent) (dirent)->d_namlen
# if HAVE_SYS_NDIR_H
#  include <sys/ndir.h>
# endif
# if HAVE_SYS_DIR_H
#  include <sys/dir.h>
# endif
# if HAVE_NDIR_H
#  include <ndir.h>
# endif
#endif

#include <time.h>
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif

#include <signal.h>

#if defined(DIRSIZ) && !defined(MAXNAMLEN)
# define MAXNAMLEN DIRSIZ
#endif

#if defined(UFS_MAXNAMLEN) && !defined(MAXNAMLEN)
# define MAXNAMLEN UFS_MAXNAMLEN    // for dynix/ptx
#endif

#if defined(NAME_MAX) && !defined(MAXNAMLEN)
# define MAXNAMLEN NAME_MAX	    // for Linux before .99p3
#endif

/*
 * Note: if MAXNAMLEN has the wrong value, you will get error messages
 *	 for not being able to open the swap file.
 */
#if !defined(MAXNAMLEN)
# define MAXNAMLEN 512		    // for all other Unix
#endif

#define BASENAMELEN	(MAXNAMLEN - 5)

#ifdef HAVE_PWD_H
# include <pwd.h>
#endif

#if (defined(HAVE_SYS_RESOURCE_H) && defined(HAVE_GETRLIMIT)) \
	|| (defined(HAVE_SYS_SYSINFO_H) && defined(HAVE_SYSINFO)) \
	|| defined(HAVE_SYSCTL) || defined(HAVE_SYSCONF)
# define HAVE_TOTAL_MEM
#endif


#ifndef PROTO

#ifdef VMS
# include <unixio.h>
# include <unixlib.h>
# include <signal.h>
# include <file.h>
# include <ssdef.h>
# include <descrip.h>
# include <libclidef.h>
# include <lnmdef.h>
# include <psldef.h>
# include <prvdef.h>
# include <dvidef.h>
# include <dcdef.h>
# include <stsdef.h>
# include <iodef.h>
# include <ttdef.h>
# include <tt2def.h>
# include <jpidef.h>
# include <rms.h>
# include <trmdef.h>
# include <string.h>
# include <starlet.h>
# include <socket.h>
# include <lib$routines.h>
# include <libdef.h>
# include <libdtdef.h>

# if defined(FEAT_GUI_MOTIF)
#  define XFree XFREE
#  define XmRepTypeInstallTearOffModelCon XMREPTYPEINSTALLTEAROFFMODELCON
# endif
#endif // VMS

#ifdef HAVE_FLOCK
# include <sys/file.h>
#endif

#endif // PROTO

#ifdef VMS
typedef struct dsc$descriptor   DESC;
#endif

/*
 * Unix system-dependent file names
 */
#ifndef SYS_VIMRC_FILE
# define SYS_VIMRC_FILE "$VIM/vimrc"
#endif
#ifndef SYS_GVIMRC_FILE
# define SYS_GVIMRC_FILE "$VIM/gvimrc"
#endif
#ifndef DFLT_HELPFILE
# define DFLT_HELPFILE	"$VIMRUNTIME/doc/help.txt"
#endif
#ifndef FILETYPE_FILE
# define FILETYPE_FILE	"filetype.vim"
#endif
#ifndef FTPLUGIN_FILE
# define FTPLUGIN_FILE	"ftplugin.vim"
#endif
#ifndef INDENT_FILE
# define INDENT_FILE	"indent.vim"
#endif
#ifndef FTOFF_FILE
# define FTOFF_FILE	"ftoff.vim"
#endif
#ifndef FTPLUGOF_FILE
# define FTPLUGOF_FILE	"ftplugof.vim"
#endif
#ifndef INDOFF_FILE
# define INDOFF_FILE	"indoff.vim"
#endif
#ifndef SYS_MENU_FILE
# define SYS_MENU_FILE	"$VIMRUNTIME/menu.vim"
#endif

#ifndef USR_EXRC_FILE
# ifdef VMS
#  define USR_EXRC_FILE "sys$login:.exrc"
# else
#  define USR_EXRC_FILE "$HOME/.exrc"
# endif
#endif

#if !defined(USR_EXRC_FILE2) && defined(VMS)
# define USR_EXRC_FILE2 "sys$login:_exrc"
#endif

#ifndef USR_VIMRC_FILE
# ifdef VMS
# define USR_VIMRC_FILE  "sys$login:.vimrc"
# else
#  define USR_VIMRC_FILE "$HOME/.vimrc"
# endif
#endif


#if !defined(USR_VIMRC_FILE2)
# ifdef VMS
#  define USR_VIMRC_FILE2	"sys$login:vimfiles/vimrc"
# else
#   define USR_VIMRC_FILE2	"~/.vim/vimrc"
# endif
#endif

#if !defined(USR_VIMRC_FILE3) && defined(VMS)
# define USR_VIMRC_FILE3 "sys$login:_vimrc"
#endif

#ifndef USR_GVIMRC_FILE
# ifdef VMS
#  define USR_GVIMRC_FILE "sys$login:.gvimrc"
# else
#  define USR_GVIMRC_FILE "$HOME/.gvimrc"
# endif
#endif

#ifndef USR_GVIMRC_FILE2
# ifdef VMS
#  define USR_GVIMRC_FILE2	"sys$login:vimfiles/gvimrc"
# else
#  define USR_GVIMRC_FILE2	"~/.vim/gvimrc"
# endif
#endif

#ifdef VMS
# ifndef USR_GVIMRC_FILE3
#  define USR_GVIMRC_FILE3  "sys$login:_gvimrc"
# endif
#endif

#ifndef VIM_DEFAULTS_FILE
# define VIM_DEFAULTS_FILE "$VIMRUNTIME/defaults.vim"
#endif

#ifndef EVIM_FILE
# define EVIM_FILE	"$VIMRUNTIME/evim.vim"
#endif

#ifdef FEAT_VIMINFO
# ifndef VIMINFO_FILE
#  ifdef VMS
#   define VIMINFO_FILE  "sys$login:.viminfo"
#  else
#   define VIMINFO_FILE "$HOME/.viminfo"
#  endif
# endif
# if !defined(VIMINFO_FILE2) && defined(VMS)
#  define VIMINFO_FILE2 "sys$login:_viminfo"
# endif
#endif

#ifndef EXRC_FILE
# define EXRC_FILE	".exrc"
#endif

#ifndef VIMRC_FILE
# define VIMRC_FILE	".vimrc"
#endif

#ifdef FEAT_GUI
# ifndef GVIMRC_FILE
#  define GVIMRC_FILE	".gvimrc"
# endif
#endif

#ifndef SYNTAX_FNAME
# define SYNTAX_FNAME	"$VIMRUNTIME/syntax/%s.vim"
#endif

#ifndef DFLT_BDIR
# ifdef VMS
#  define DFLT_BDIR    "./,sys$login:,tmp:"
# else
#  define DFLT_BDIR    ".,~/tmp,~/"    // default for 'backupdir'
# endif
#endif

#ifndef DFLT_DIR
# ifdef VMS
#  define DFLT_DIR     "./,sys$login:,tmp:"
# else
#  define DFLT_DIR     ".,~/tmp,/var/tmp,/tmp" // default for 'directory'
# endif
#endif

#ifndef DFLT_VDIR
# ifdef VMS
#  define DFLT_VDIR    "sys$login:vimfiles/view"
# else
#  define DFLT_VDIR    "$HOME/.vim/view"       // default for 'viewdir'
# endif
#endif

#define DFLT_ERRORFILE		"errors.err"

#ifndef DFLT_RUNTIMEPATH

# ifdef VMS
#  define DFLT_RUNTIMEPATH      "sys$login:vimfiles,$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after,sys$login:vimfiles/after"
#  define CLEAN_RUNTIMEPATH      "$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after"
# else
#  ifdef RUNTIME_GLOBAL
#   ifdef RUNTIME_GLOBAL_AFTER
#    define DFLT_RUNTIMEPATH	"~/.vim," RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL_AFTER ",~/.vim/after"
#    define CLEAN_RUNTIMEPATH	RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL_AFTER
#   else
#    define DFLT_RUNTIMEPATH	"~/.vim," RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL "/after,~/.vim/after"
#    define CLEAN_RUNTIMEPATH	RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL "/after"
#   endif
#  else
#   define DFLT_RUNTIMEPATH	"~/.vim,$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after,~/.vim/after"
#   define CLEAN_RUNTIMEPATH	"$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after"
#  endif
# endif

#endif

#ifdef VMS
# ifndef VAX
#  define VMS_TEMPNAM    // to fix default .LIS extension
# endif
# define TEMPNAME       "TMP:v?XXXXXX.txt"
# define TEMPNAMELEN    28
#else
// Try several directories to put the temp files.
# define TEMPDIRNAMES  "$TMPDIR", "/tmp", ".", "$HOME"
# define TEMPNAMELEN    256
#endif

// Special wildcards that need to be handled by the shell
#define SPECIAL_WILDCHAR    "`'{"

/*
 * Unix has plenty of memory, use large buffers
 */
#define CMDBUFFSIZE 1024	// size of the command processing buffer

// Use the system path length if it makes sense.
#if defined(PATH_MAX) && (PATH_MAX > 1000)
# define MAXPATHL	PATH_MAX
#else
# define MAXPATHL	1024
#endif

#define CHECK_INODE		// used when checking if a swap file already
				// exists for a file
#ifdef VMS  // Use less memory because of older systems
# ifndef DFLT_MAXMEM
#  define DFLT_MAXMEM (2*1024)
# endif
# ifndef DFLT_MAXMEMTOT
#  define DFLT_MAXMEMTOT (5*1024)
# endif
#else
# ifndef DFLT_MAXMEM
#  define DFLT_MAXMEM	(5*1024)	 // use up to 5 Mbyte for a buffer
# endif
# ifndef DFLT_MAXMEMTOT
#  define DFLT_MAXMEMTOT	(10*1024)    // use up to 10 Mbyte for Vim
# endif
#endif

// memmove() is not present on all systems, use memmove, bcopy or memcpy.
// Some systems have (void *) arguments, some (char *). If we use (char *) it
// works for all
#if defined(USEMEMMOVE) || (!defined(USEBCOPY) && !defined(USEMEMCPY))
# define mch_memmove(to, from, len) memmove((char *)(to), (char *)(from), len)
#else
# ifdef USEBCOPY
#  define mch_memmove(to, from, len) bcopy((char *)(from), (char *)(to), len)
# else
    // ifdef USEMEMCPY
#   define mch_memmove(to, from, len) memcpy((char *)(to), (char *)(from), len)
# endif
#endif

#ifndef PROTO
# ifdef HAVE_RENAME
#  define mch_rename(src, dst) rename(src, dst)
# else
int mch_rename(const char *src, const char *dest);
# endif
# ifndef VMS
#  ifdef __MVS__
  // on OS390 Unix getenv() doesn't return a pointer to persistent
  // storage -> use __getenv()
#   define mch_getenv(x) (char_u *)__getenv((char *)(x))
#  else
#   define mch_getenv(x) (char_u *)getenv((char *)(x))
#  endif
#  define mch_setenv(name, val, x) setenv(name, val, x)
# endif
#endif

// Note: Some systems need both string.h and strings.h (Savage).  However,
// some systems can't handle both, only use string.h in that case.
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#if defined(HAVE_STRINGS_H) && !defined(NO_STRINGS_WITH_STRING_H)
# include <strings.h>
#endif

#if defined(HAVE_SETJMP_H)
# include <setjmp.h>
# ifdef HAVE_SIGSETJMP
#  define JMP_BUF sigjmp_buf
#  define SETJMP(x) sigsetjmp((x), 1)
#  define LONGJMP siglongjmp
# else
#  define JMP_BUF jmp_buf
#  define SETJMP(x) setjmp(x)
#  define LONGJMP longjmp
# endif
#endif

#ifndef HAVE_DUP
# define HAVE_DUP		// have dup()
#endif
#define HAVE_ST_MODE		// have stat.st_mode

// We have three kinds of ACL support.
#define HAVE_ACL (HAVE_POSIX_ACL || HAVE_SOLARIS_ACL || HAVE_AIX_ACL)