dirwrap.c 23.2 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
/* dirwrap.c */

/* Directory-related system-call wrappers */

/* $Id$ */

/****************************************************************************
 * @format.tab-size 4		(Plain Text/Source Code File Header)			*
 * @format.use-tabs true	(see http://www.synchro.net/ptsc_hdr.html)		*
 *																			*
11
 * Copyright 2006 Rob Swindell - http://www.synchro.net/copyright.html		*
12
 *																			*
13
14
 * This library is free software; you can redistribute it and/or			*
 * modify it under the terms of the GNU Lesser General Public License		*
15
16
 * as published by the Free Software Foundation; either version 2			*
 * of the License, or (at your option) any later version.					*
17
18
 * See the GNU Lesser General Public License for more details: lgpl.txt or	*
 * http://www.fsf.org/copyleft/lesser.html									*
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
 *																			*
 * Anonymous FTP access to the most recent released source is available at	*
 * ftp://vert.synchro.net, ftp://cvs.synchro.net and ftp://ftp.synchro.net	*
 *																			*
 * Anonymous CVS access to the development source and modification history	*
 * is available at cvs.synchro.net:/cvsroot/sbbs, example:					*
 * cvs -d :pserver:anonymous@cvs.synchro.net:/cvsroot/sbbs login			*
 *     (just hit return, no password is necessary)							*
 * cvs -d :pserver:anonymous@cvs.synchro.net:/cvsroot/sbbs checkout src		*
 *																			*
 * For Synchronet coding style and modification guidelines, see				*
 * http://www.synchro.net/source.html										*
 *																			*
 * You are encouraged to submit any modifications (preferably in Unix diff	*
 * format) via e-mail to mods@synchro.net									*
 *																			*
 * Note: If this box doesn't appear square, then you need to fix your tabs.	*
 ****************************************************************************/

38
39
#include <string.h>	/* strrchr */

40
#if defined(_WIN32)
41

42
43
	#include <windows.h>	/* WINAPI, etc */
	#include <io.h>			/* _findfirst */
44
45
46

#elif defined __unix__

47
48
49
	#include <unistd.h>		/* usleep */
	#include <fcntl.h>		/* O_NOCCTY */
	#include <ctype.h>		/* toupper */
rswindell's avatar
rswindell committed
50
	#include <sys/param.h>
51

rswindell's avatar
rswindell committed
52
	#if defined(BSD)
53
		#include <sys/mount.h>
rswindell's avatar
rswindell committed
54
	#if defined(__FreeBSD__)
55
56
		#include <sys/kbio.h>
	#endif
rswindell's avatar
rswindell committed
57
	#endif
58

59
	#include <sys/ioctl.h>	/* ioctl */
60

61
62
63
	#if defined(__GLIBC__)		/* actually, BSD, but will work for now */
		#include <sys/vfs.h>    /* statfs() */
	#endif
64

deuce's avatar
deuce committed
65
66
67
68
	#if defined(__solaris__)
		#include <sys/statvfs.h>
	#endif

69
#endif /* __unix__ */
70

rswindell's avatar
rswindell committed
71
72
73
74
#if defined(__WATCOMC__)
	#include <dos.h>
#endif
	
75
76
77
78
79
80
81
#include <sys/types.h>	/* _dev_t */
#include <sys/stat.h>	/* struct stat */

#include <stdio.h>		/* sprintf */
#include <stdlib.h>		/* rand */
#include <errno.h>		/* ENOENT definitions */

82
#include "genwrap.h"	/* strupr/strlwr */
83
84
85
86
87
#include "dirwrap.h"	/* DLLCALL */

/****************************************************************************/
/* Return the filename portion of a full pathname							*/
/****************************************************************************/
88
char* DLLCALL getfname(const char* path)
89
{
90
91
	const char* fname;
	const char* bslash;
92
93

	fname=strrchr(path,'/');
94
95
96
	bslash=strrchr(path,'\\');
	if(bslash>fname)
		fname=bslash;
97
98
99
	if(fname!=NULL) 
		fname++;
	else 
100
		fname=(char*)path;
101
	return((char*)fname);
102
103
}

104
105
106
107
108
109
110
111
112
113
114
115
116
117
/****************************************************************************/
/* Return a pointer to a file's extesion (beginning with '.')				*/
/****************************************************************************/
char* DLLCALL getfext(const char* path)
{
	char *fname;
	char *fext;

	fname=getfname(path);
	fext=strrchr(fname,'.');
	if(fext==NULL || fext==fname) 
		return(NULL);
	return(fext);
}
118
119
120
121
122
123
124
125
126
127

/****************************************************************************/
/* Break a path name into components.										*/
/****************************************************************************/
#if defined(__unix__)
void DLLCALL _splitpath(const char *path, char *drive, char *dir, char *fname, char *ext)
{
	char*	p;

	ext[0]=0;
128
129
130
131
132
133
134
135
136
137
	drive[0]=0;			/* no drive letters on Unix */

	strcpy(dir,path);	/* Optional directory path, including trailing slash. */
	p=getfname(dir);
	strcpy(fname,p);	/* Base filename (no extension) */
	if(p==dir)
		dir[0]=0;		/* no directory specified in path */
	else
		*p=0;			/* truncate dir at filename */
	p=getfext(fname);
138
	if(p!=NULL) {
139
		strcpy(ext,p);	/* Optional filename extension, including leading period (.) */
140
141
142
143
144
		*p=0;
	}
}
#endif

145
146
147
148
/****************************************************************************/
/* Win32 (minimal) implementation of POSIX.2 glob() function				*/
/* This code _may_ work on other DOS-based platforms (e.g. OS/2)			*/
/****************************************************************************/
149
#if !defined(__unix__)
150
151
152
153
154
155
static int glob_compare( const void *arg1, const void *arg2 )
{
   /* Compare all of both strings: */
   return stricmp( * ( char** ) arg1, * ( char** ) arg2 );
}

156
#if defined(__BORLANDC__)
157
158
159
	#pragma argsused
#endif

rswindell's avatar
rswindell committed
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
#if defined(__WATCOMC__)

int	DLLCALL	glob(const char *pattern, int flags, void* unused, glob_t* glob)
{
    struct	find_t ff;
	size_t	found=0;
	char	path[MAX_PATH+1];
	char*	p;
	char**	new_pathv;

	if(!(flags&GLOB_APPEND)) {
		glob->gl_pathc=0;
		glob->gl_pathv=NULL;
	}

	if(_dos_findfirst((char*)pattern,_A_NORMAL,&ff)!=0)
		return(GLOB_NOMATCH);

	do {
179
180
		if((flags&GLOB_PERIOD || ff.name[0]!='.') &&
			(!(flags&GLOB_ONLYDIR) || ff.attrib&_A_SUBDIR)) {
rswindell's avatar
rswindell committed
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
			if((new_pathv=realloc(glob->gl_pathv
				,(glob->gl_pathc+1)*sizeof(char*)))==NULL) {
				globfree(glob);
				return(GLOB_NOSPACE);
			}
			glob->gl_pathv=new_pathv;

			/* build the full pathname */
			SAFECOPY(path,pattern);
			p=getfname(path);
			*p=0;
			strcat(path,ff.name);

			if((glob->gl_pathv[glob->gl_pathc]=malloc(strlen(path)+2))==NULL) {
				globfree(glob);
				return(GLOB_NOSPACE);
			}
			strcpy(glob->gl_pathv[glob->gl_pathc],path);
			if(flags&GLOB_MARK && ff.attrib&_A_SUBDIR)
				strcat(glob->gl_pathv[glob->gl_pathc],"/");

			glob->gl_pathc++;
			found++;
		}
	} while(_dos_findnext(&ff)==0);
	_dos_findclose(&ff);

	if(found==0)
		return(GLOB_NOMATCH);

	if(!(flags&GLOB_NOSORT)) {
		qsort(glob->gl_pathv,found,sizeof(char*),glob_compare);
	}

	return(0);	/* success */
}

#else

220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
int	DLLCALL	glob(const char *pattern, int flags, void* unused, glob_t* glob)
{
    struct	_finddata_t ff;
	long	ff_handle;
	size_t	found=0;
	char	path[MAX_PATH+1];
	char*	p;
	char**	new_pathv;

	if(!(flags&GLOB_APPEND)) {
		glob->gl_pathc=0;
		glob->gl_pathv=NULL;
	}

	ff_handle=_findfirst((char*)pattern,&ff);
	while(ff_handle!=-1) {
236
237
		if((flags&GLOB_PERIOD || ff.name[0]!='.') &&
			(!(flags&GLOB_ONLYDIR) || ff.attrib&_A_SUBDIR)) {
238
			if((new_pathv=(char**)realloc(glob->gl_pathv
239
240
241
242
243
244
245
				,(glob->gl_pathc+1)*sizeof(char*)))==NULL) {
				globfree(glob);
				return(GLOB_NOSPACE);
			}
			glob->gl_pathv=new_pathv;

			/* build the full pathname */
246
			SAFECOPY(path,pattern);
247
248
249
250
			p=getfname(path);
			*p=0;
			strcat(path,ff.name);

251
			if((glob->gl_pathv[glob->gl_pathc]=(char*)malloc(strlen(path)+2))==NULL) {
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
				globfree(glob);
				return(GLOB_NOSPACE);
			}
			strcpy(glob->gl_pathv[glob->gl_pathc],path);
			if(flags&GLOB_MARK && ff.attrib&_A_SUBDIR)
				strcat(glob->gl_pathv[glob->gl_pathc],"/");

			glob->gl_pathc++;
			found++;
		}
		if(_findnext(ff_handle, &ff)!=0) {
			_findclose(ff_handle);
			ff_handle=-1; 
		} 
	}

	if(found==0)
		return(GLOB_NOMATCH);

	if(!(flags&GLOB_NOSORT)) {
		qsort(glob->gl_pathv,found,sizeof(char*),glob_compare);
	}

	return(0);	/* success */
}

rswindell's avatar
rswindell committed
278
279
#endif

280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
void DLLCALL globfree(glob_t* glob)
{
	size_t i;

	if(glob==NULL)
		return;

	if(glob->gl_pathv!=NULL) {
		for(i=0;i<glob->gl_pathc;i++)
			if(glob->gl_pathv[i]!=NULL)
				free(glob->gl_pathv[i]);

		free(glob->gl_pathv);
		glob->gl_pathv=NULL;
	}
	glob->gl_pathc=0;
}

#endif /* !defined(__unix__) */

/****************************************************************************/
/* POSIX directory operations using Microsoft _findfirst/next API.			*/
/****************************************************************************/
303
#if defined(_MSC_VER) || defined(__DMC__)
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
DIR* opendir(const char* dirname)
{
	DIR*	dir;

	if((dir=(DIR*)calloc(1,sizeof(DIR)))==NULL) {
		errno=ENOMEM;
		return(NULL);
	}
	sprintf(dir->filespec,"%.*s",sizeof(dir->filespec)-5,dirname);
	if(*dir->filespec && dir->filespec[strlen(dir->filespec)-1]!='\\')
		strcat(dir->filespec,"\\");
	strcat(dir->filespec,"*.*");
	dir->handle=_findfirst(dir->filespec,&dir->finddata);
	if(dir->handle==-1) {
		errno=ENOENT;
		free(dir);
		return(NULL);
	}
	return(dir);
}
struct dirent* readdir(DIR* dir)
{
	if(dir==NULL)
		return(NULL);
	if(dir->end==TRUE)
		return(NULL);
	if(dir->handle==-1)
		return(NULL);
	sprintf(dir->dirent.d_name,"%.*s",sizeof(struct dirent)-1,dir->finddata.name);
	if(_findnext(dir->handle,&dir->finddata)!=0)
		dir->end=TRUE;
	return(&dir->dirent);
}
int closedir (DIR* dir)
{
	if(dir==NULL)
		return(-1);
	_findclose(dir->handle);
	free(dir);
	return(0);
}
void rewinddir(DIR* dir)
{
	if(dir==NULL)
		return;
	_findclose(dir->handle);
	dir->end=FALSE;
	dir->handle=_findfirst(dir->filespec,&dir->finddata);
}
#endif /* defined(_MSC_VER) */

/****************************************************************************/
/* Returns the time/date of the file in 'filename' in time_t (unix) format  */
/****************************************************************************/
358
time_t DLLCALL fdate(const char* filename)
359
360
361
362
363
364
365
366
367
368
369
370
{
	struct stat st;

	if(access(filename,0)==-1)
		return(-1);

	if(stat(filename, &st)!=0)
		return(-1);

	return(st.st_mtime);
}

371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
/****************************************************************************/
/* Change the access and modification times for specified filename			*/
/****************************************************************************/
int DLLCALL setfdate(const char* filename, time_t t)
{
	struct utimbuf ut;

	memset(&ut,0,sizeof(ut));

	ut.actime=t;
	ut.modtime=t;

	return(utime(filename,&ut));
}

386
387
388
/****************************************************************************/
/* Returns the length of the file in 'filename'                             */
/****************************************************************************/
389
long DLLCALL flength(const char *filename)
390
{
391
#if defined(__BORLANDC__) && !defined(__unix__)	/* stat() doesn't work right */
392
393
394
395

	long	handle;
	struct _finddata_t f;

396
	if(access((char*)filename,0)==-1)
397
398
		return(-1L);

399
	if((handle=_findfirst((char*)filename,&f))==-1)
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
		return(-1);

 	_findclose(handle);

	return(f.size);

#else 

	struct stat st;

	if(access(filename,0)==-1)
		return(-1L);

	if(stat(filename, &st)!=0)
		return(-1L);

	return(st.st_size);

#endif
}

421
422
423
424
425
426
427
428
429
430
431
432
433
434
435

/****************************************************************************/
/* Checks the file system for the existence of one or more files.			*/
/* Returns TRUE if it exists, FALSE if it doesn't.                          */
/* 'filespec' may *NOT* contain wildcards!									*/
/****************************************************************************/
static BOOL fnameexist(const char *filename)
{
	if(access(filename,0)==-1)
		return(FALSE);
	if(!isdir(filename))
		return(TRUE);
	return(FALSE);
}

436
437
438
439
440
/****************************************************************************/
/* Checks the file system for the existence of one or more files.			*/
/* Returns TRUE if it exists, FALSE if it doesn't.                          */
/* 'filespec' may contain wildcards!										*/
/****************************************************************************/
441
BOOL DLLCALL fexist(const char *filespec)
442
{
443
#if defined(_WIN32)
444
445
446
447

	long	handle;
	struct _finddata_t f;

448
449
	if(!strchr(filespec,'*') && !strchr(filespec,'?'))
		return(fnameexist(filespec));
450

451
	if((handle=_findfirst((char*)filespec,&f))==-1)
452
453
454
455
456
457
458
459
460
		return(FALSE);

 	_findclose(handle);

 	if(f.attrib&_A_SUBDIR)
		return(FALSE);

	return(TRUE);

rswindell's avatar
rswindell committed
461
462
463
#else /* Unix or OS/2 */
	
	/* portion by cmartin */
464
465
466
467

	glob_t g;
    int c;

468
469
	if(!strchr(filespec,'*') && !strchr(filespec,'?'))
		return(fnameexist(filespec));
470

471
    /* start the search */
472
473
474
    glob(filespec, GLOB_MARK | GLOB_NOSORT, NULL, &g);

    if (!g.gl_pathc) {
475
	    /* no results */
476
477
478
479
    	globfree(&g);
    	return FALSE;
    }

480
    /* make sure it's not a directory */
481
482
	c = g.gl_pathc;
    while (c--) {
483
    	if (*lastchar(g.gl_pathv[c]) != '/') {
484
485
486
487
488
489
490
491
492
493
494
        	globfree(&g);
            return TRUE;
        }
    }
        
    globfree(&g);
    return FALSE;

#endif
}

495
496
497
498
499
/****************************************************************************/
/* Fixes upper/lowercase filename for Unix file systems						*/
/****************************************************************************/
BOOL DLLCALL fexistcase(char *path)
{
500
501
502
503
504
505
#if defined(_WIN32)

	char*	fname;
	long	handle;
	struct _finddata_t f;

506
507
	if(!strchr(path,'*') && !strchr(path,'?'))
		return(fnameexist(path));
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523

	if((handle=_findfirst((char*)path,&f))==-1)
		return(FALSE);

 	_findclose(handle);

 	if(f.attrib&_A_SUBDIR)
		return(FALSE);

	fname=getfname(path);	/* Find filename in path */
	strcpy(fname,f.name);	/* Correct filename */

	return(TRUE);

#else /* Unix or OS/2 */

524
525
526
527
	char globme[MAX_PATH*4+1];
	char fname[MAX_PATH+1];
	char tmp[5];
	char *p;
528
	int  i;
529
530
	glob_t	glb;
	
531
532
533
	if(!strchr(path,'*') && !strchr(path,'?') && fnameexist(path))
		return(TRUE);

534
	SAFECOPY(globme,path);
535
	p=getfname(globme);
536
	SAFECOPY(fname,p);
537
538
	*p=0;
	for(i=0;fname[i];i++)  {
539
		if(isalpha(fname[i]))
540
			sprintf(tmp,"[%c%c]",toupper(fname[i]),tolower(fname[i]));
541
		else
542
543
544
			sprintf(tmp,"%c",fname[i]);
		strncat(globme,tmp,MAX_PATH*4);
	}
545
#if 0
546
	if(strcspn(path,"?*")!=strlen(path))  {
547
		sprintf(path,"%.*s",MAX_PATH,globme);
548
		return(fexist(path));
549
	}
550
#endif
551

552
	if(glob(globme,GLOB_MARK,NULL,&glb) != 0)
553
554
		return(FALSE);
	
555
556
	if(glb.gl_pathc>0)  {
		for(i=0;i<glb.gl_pathc;i++)  {
557
558
			if(*lastchar(glb.gl_pathv[i]) != '/')
				break;
559
		}
560
		if(i<glb.gl_pathc)  {
561
			sprintf(path,"%.*s",MAX_PATH,glb.gl_pathv[i]);
562
563
564
			globfree(&glb);
			return TRUE;
		}
565
	}
566
567
568
569

	globfree(&glb);
	return FALSE;
	
570
571
572
#endif
}

573
574
575
576
#if !defined(S_ISDIR)
	#define S_ISDIR(x)	((x)&S_IFDIR)
#endif

577
578
579
/****************************************************************************/
/* Returns TRUE if the filename specified is a directory					*/
/****************************************************************************/
580
BOOL DLLCALL isdir(const char *filename)
581
{
582
583
	char	path[MAX_PATH+1];
	char*	p;
584
585
	struct stat st;

586
587
588
	SAFECOPY(path,filename);

	p=lastchar(path);
589
	if(p!=path && IS_PATH_DELIM(*p)) {	/* chop off trailing slash */
590
591
592
593
594
595
#if !defined(__unix__)
		if(*(p-1)!=':')		/* Don't change C:\ to C: */
#endif
			*p=0;
	}

596
597
598
#if defined(__BORLANDC__) && !defined(__unix__)	/* stat() doesn't work right */
	if(stat(path, &st)!=0 || strchr(path,'*')!=NULL || strchr(path,'?')!=NULL)
#else
599
	if(stat(path, &st)!=0)
600
#endif
601
602
		return(FALSE);

603
	return(S_ISDIR(st.st_mode) ? TRUE : FALSE);
604
605
606
607
608
}

/****************************************************************************/
/* Returns the attributes (mode) for specified 'filename'					*/
/****************************************************************************/
609
int DLLCALL getfattr(const char* filename)
610
{
611
#if defined(_WIN32)
612
613
614
	long handle;
	struct _finddata_t	finddata;

615
	if((handle=_findfirst((char*)filename,&finddata))==-1) {
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
		errno=ENOENT;
		return(-1);
	}
	_findclose(handle);
	return(finddata.attrib);
#else
	struct stat st;

	if(stat(filename, &st)!=0) {
		errno=ENOENT;
		return(-1L);
	}

	return(st.st_mode);
#endif
}

/****************************************************************************/
634
635
636
637
638
639
640
641
642
643
/* Deletes all files in dir 'path' that match file spec 'spec'              */
/****************************************************************************/
ulong DLLCALL delfiles(char *inpath, char *spec)
{
	char	path[MAX_PATH+1];
	char	lastch;
    uint	i,files=0;
	glob_t	g;

	lastch=*lastchar(inpath);
644
645
	if(!IS_PATH_DELIM(lastch))
		sprintf(path,"%s%c",inpath,PATH_DELIM);
646
647
648
649
650
651
652
	else
		strcpy(path,inpath);
	strcat(path,spec);
	glob(path,0,NULL,&g);
	for(i=0;i<g.gl_pathc;i++) {
		if(isdir(g.gl_pathv[i]))
			continue;
653
		CHMOD(g.gl_pathv[i],S_IWRITE);	/* Incase it's been marked RDONLY */
654
655
656
657
658
659
660
661
		if(remove(g.gl_pathv[i])==0)
			files++;
	}
	globfree(&g);
	return(files);
}

/****************************************************************************/
662
663
/* Return free disk space in bytes (up to a maximum of 4GB)					*/
/****************************************************************************/
664
#if defined(_WIN32)
665
666
667
668
669
670
671
672
673
674
675
676
677
typedef BOOL(WINAPI * GetDiskFreeSpaceEx_t)
	(LPCTSTR,PULARGE_INTEGER,PULARGE_INTEGER,PULARGE_INTEGER); 

static int bit_num(ulong val)
{
	int i;

	for(i=31;i>=0;i--)
		if(val&(1<<i))
			return(i);

	return(-1);
}
678
679
#endif

680
681
/* Unit should be a power-of-2 (e.g. 1024 to report kilobytes) */
ulong DLLCALL getfreediskspace(const char* path, ulong unit)
682
{
683
#if defined(_WIN32)
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
	char			root[16];
	DWORD			TotalNumberOfClusters;
	DWORD			NumberOfFreeClusters;
	DWORD			BytesPerSector;
	DWORD			SectorsPerCluster;
	ULARGE_INTEGER	avail;
	ULARGE_INTEGER	size;
	static HINSTANCE hK32;
	GetDiskFreeSpaceEx_t GetDiskFreeSpaceEx;

	if(hK32 == NULL)
		hK32 = LoadLibrary("KERNEL32");
	GetDiskFreeSpaceEx 
		= (GetDiskFreeSpaceEx_t)GetProcAddress(hK32,"GetDiskFreeSpaceExA");
 
	if (GetDiskFreeSpaceEx!=NULL) {	/* Windows 95-OSR2 or later */
		if(!GetDiskFreeSpaceEx(
701
702
703
704
			path,		/* pointer to the directory name */
			&avail,		/* receives the number of bytes on disk avail to the caller */
			&size,		/* receives the number of bytes on disk */
			NULL))		/* receives the free bytes on disk */
705
			return(0);
706

707
		if(unit>1)
708
709
			avail.QuadPart=Int64ShrlMod32(avail.QuadPart,bit_num(unit));

710
#if defined(_ANONYMOUS_STRUCT)
711
712
713
714
715
716
		if(avail.HighPart)
#else
		if(avail.u.HighPart)
#endif
			return(0xffffffff);	/* 4GB max */

717
#if defined(_ANONYMOUS_STRUCT)
718
719
720
721
722
723
724
725
726
		return(avail.LowPart);
#else
		return(avail.u.LowPart);
#endif
	}

	/* Windows 95 (old way), limited to 2GB */
	sprintf(root,"%.3s",path);
	if(!GetDiskFreeSpace(
727
728
729
730
731
		root,					/* pointer to root path */
		&SectorsPerCluster,		/* pointer to sectors per cluster */
		&BytesPerSector,		/* pointer to bytes per sector */
		&NumberOfFreeClusters,	/* pointer to number of free clusters */
		&TotalNumberOfClusters  /* pointer to total number of clusters */
732
733
734
		))
		return(0);

735
	if(unit>1)
736
		NumberOfFreeClusters/=unit;
737
738
739
740
	return(NumberOfFreeClusters*SectorsPerCluster*BytesPerSector);


/* statfs is also used under FreeBSD */
rswindell's avatar
rswindell committed
741
#elif defined(__GLIBC__) || defined(BSD)
742
743
744
745
746
747

	struct statfs fs;

    if (statfs(path, &fs) < 0)
    	return 0;

748
	if(unit>1)
749
		fs.f_bavail/=unit;
750
751
    return fs.f_bsize * fs.f_bavail;
    
deuce's avatar
deuce committed
752
753
754
755
756
757
758
759
760
761
762
#elif defined(__solaris__)

	struct statvfs fs;

    if (statvfs(path, &fs) < 0)
    	return 0;

	if(unit>1)
		fs.f_bavail/=unit;
    return fs.f_bsize * fs.f_bavail;
    
763
764
#else

rswindell's avatar
rswindell committed
765
	fprintf(stderr,"\n*** !Missing getfreediskspace implementation ***\n");
766
767
768
769
	return(0);

#endif
}
770
771
772
773
774
775
776
777

/****************************************************************************/
/* Resolves //, /./, and /../ in a path. Should work indetically to Windows */
/****************************************************************************/
#if defined(__unix__)
char * DLLCALL _fullpath(char *target, const char *path, size_t size)  {
	char	*out;
	char	*p;
778

779
780
781
782
783
784
785
786
787
	if(target==NULL)  {
		if((target=malloc(MAX_PATH+1))==NULL) {
			return(NULL);
		}
	}
	out=target;
	*out=0;

	if(*path != '/')  {
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
		if(*path == '~') {
			p=getenv("HOME");
			if(p==NULL || strlen(p)+strlen(path)>=size)
				return(NULL);
			strcpy(target,p);
			out=strrchr(target,'\0');
			path++;
		}
		else {
			p=getcwd(NULL,size);
			if(p==NULL || strlen(p)+strlen(path)>=size)
				return(NULL);
			strcpy(target,p);
			free(p);
			out=strrchr(target,'\0');
			*(out++)='/';
			*out=0;
			out--;
		}
807
808
809
810
811
812
813
814
815
816
817
818
	}
	strncat(target,path,size-1);
	
/*	if(stat(target,&sb))
		return(NULL);
	if(sb.st_mode&S_IFDIR)
		strcat(target,"/"); */

	for(;*out;out++)  {
		while(*out=='/')  {
			if(*(out+1)=='/')
				memmove(out,out+1,strlen(out));
819
			else if(*(out+1)=='.' && (*(out+2)=='/' || *(out+2)==0))
820
				memmove(out,out+2,strlen(out)-1);
821
			else if(*(out+1)=='.' && *(out+2)=='.' && (*(out+3)=='/' || *(out+3)==0))  {
822
823
				*out=0;
				p=strrchr(target,'/');
824
825
				if(p==NULL)
					p=target;
826
827
828
829
830
831
832
833
834
835
836
				memmove(p,out+3,strlen(out+3)+1);
				out=p;
			}
			else  {
				out++;
			}
		}
	}
	return(target);
}
#endif
837
838

/****************************************************************************/
839
/* Adds a trailing slash/backslash (path delimiter) on path strings 		*/
840
841
842
843
844
/****************************************************************************/
char* DLLCALL backslash(char* path)
{
	char* p;

rswindell's avatar
rswindell committed
845
	p=lastchar(path);
846

847
	if(*p && !IS_PATH_DELIM(*p)) {
848
849
#if defined(__unix__)
		/* Convert trailing backslash to forwardslash on *nix */
850
		if(*p!='\\')
851
#endif
852
			p++;
853
		*p=PATH_DELIM;
rswindell's avatar
rswindell committed
854
		*(++p)=0;
855
856
857
	}
	return(path);
}
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879

/****************************************************************************/
/* Returns true if the specified filename an aboslute pathname				*/
/****************************************************************************/
BOOL DLLCALL isabspath(const char *filename)
{
	char path[MAX_PATH+1];

	return(stricmp(filename,FULLPATH(path,filename,sizeof(path)))==0);
}

/****************************************************************************/
/* Returns true if the specified filename is a full ("rooted") path			*/
/****************************************************************************/
BOOL DLLCALL isfullpath(const char* filename)
{
	return(filename[0]=='/' 
#ifdef WIN32
		|| filename[0]=='\\' || filename[1]==':'
#endif
		);
}
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902

/****************************************************************************/
/* Matches file name against filespec										*/
/* Optionally not allowing * to match PATH_DELIM (for paths)				*/
/****************************************************************************/
BOOL DLLCALL wildmatch(const char *fname, const char *spec, BOOL path)
{
	char *specp;
	char *fnamep;

	specp=(char *)spec;
	fnamep=(char *)fname;
	for(;;specp++, fnamep++) {
		switch(*specp) {
			case '?':
				if(!(*fnamep))
					return(FALSE);
				break;
			case 0:
				if(!*fnamep)
					return(TRUE);
				break;
			case '*':
903
904
				while(*specp=='*')
					specp++;
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
				for(;*fnamep!=*specp && *fnamep;fnamep++) {
					if(path && IS_PATH_DELIM(*fnamep))
						return(FALSE);
				}
			default:
				if(*specp != *fnamep)
					return(FALSE);
		}
		if(!(*specp && *fnamep))
			break;
	}
	while(*specp=='*')
		specp++;
	if(*specp==*fnamep)
		return(TRUE);
	return(FALSE);
}
922

923
924
925
926
927
928
929
930
931
932
933
/****************************************************************************/
/* Matches file name against filespec, ignoring case						*/
/****************************************************************************/
BOOL DLLCALL wildmatchi(const char *fname, const char *spec, BOOL path)
{
	char* s1;
	char* s2;
	BOOL result;

	if((s1=strdup(fname))==NULL)
		return(FALSE);
rswindell's avatar
rswindell committed
934
	if((s2=strdup(spec))==NULL) {
935
936
937
938
939
940
941
942
943
944
945
		free(s1);
		return(FALSE);
	}
	strupr(s1);
	strupr(s2);
	result = wildmatch(s1, s2, path);
	free(s1);
	free(s2);
	return(result);
}

946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
/****************************************************************************/
/* Creates all the necessary directories in the specified path				*/
/****************************************************************************/
int DLLCALL mkdirs(const char* path)
{
	const char*	p=path;
	const char*	tp;
	const char*	sep=
#ifdef _WIN32
		"\\"
#endif
		"/";
	char	dir[MAX_PATH+1];
	int		result=0;

#ifdef _WIN32
	if(p[1]==':')	/* Skip drive letter, if specified */
		p+=2;
#endif

	while(*p) {
		SKIP_CHARSET(p,sep);
968
969
		if(*p==0)
			break;
970
971
		tp=p;
		FIND_CHARSET(tp,sep);
972
973
974
975
		safe_snprintf(dir,sizeof(dir),"%.*s",tp-path, path);
		if(!isdir(dir)) {
			if((result=MKDIR(dir))!=0)
				break;
976
977
978
979
980
981
		}
		p=tp;
	}

	return(result);
}