2 * DOS file system functions
4 * Copyright 1993 Erik Bos
5 * Copyright 1996 Alexandre Julliard
13 #ifdef HAVE_SYS_ERRNO_H
14 #include <sys/errno.h>
20 #include <sys/ioctl.h>
27 #include "wine/winbase16.h"
37 #include "debugtools.h"
39 DEFAULT_DEBUG_CHANNEL(dosfs)
40 DECLARE_DEBUG_CHANNEL(file)
42 /* Define the VFAT ioctl to get both short and long file names */
43 /* FIXME: is it possible to get this to work on other systems? */
45 /* We want the real kernel dirent structure, not the libc one */
50 unsigned short d_reclen;
54 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, KERNEL_DIRENT [2] )
57 #undef VFAT_IOCTL_READDIR_BOTH /* just in case... */
60 /* Chars we don't want to see in DOS file names */
61 #define INVALID_DOS_CHARS "*?<>|\"+=,;[] \345"
63 static const DOS_DEVICE DOSFS_Devices[] =
64 /* name, device flags (see Int 21/AX=0x4400) */
78 { "SCSIMGR$", 0xc0c0 },
82 #define GET_DRIVE(path) \
83 (((path)[1] == ':') ? toupper((path)[0]) - 'A' : DOSFS_CurDrive)
85 /* Directory info for DOSFS_ReadDir */
89 #ifdef VFAT_IOCTL_READDIR_BOTH
92 KERNEL_DIRENT dirent[2];
96 /* Info structure for FindFirstFile handle */
110 /***********************************************************************
113 * Return 1 if Unix file 'name' is also a valid MS-DOS name
114 * (i.e. contains only valid DOS chars, lower-case only, fits in 8.3 format).
115 * File name can be terminated by '\0', '\\' or '/'.
117 static int DOSFS_ValidDOSName( const char *name, int ignore_case )
119 static const char invalid_chars[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" INVALID_DOS_CHARS;
120 const char *p = name;
121 const char *invalid = ignore_case ? (invalid_chars + 26) : invalid_chars;
126 /* Check for "." and ".." */
129 /* All other names beginning with '.' are invalid */
130 return (IS_END_OF_NAME(*p));
132 while (!IS_END_OF_NAME(*p))
134 if (strchr( invalid, *p )) return 0; /* Invalid char */
135 if (*p == '.') break; /* Start of the extension */
136 if (++len > 8) return 0; /* Name too long */
139 if (*p != '.') return 1; /* End of name */
141 if (IS_END_OF_NAME(*p)) return 0; /* Empty extension not allowed */
143 while (!IS_END_OF_NAME(*p))
145 if (strchr( invalid, *p )) return 0; /* Invalid char */
146 if (*p == '.') return 0; /* Second extension not allowed */
147 if (++len > 3) return 0; /* Extension too long */
154 /***********************************************************************
155 * DOSFS_ToDosFCBFormat
157 * Convert a file name to DOS FCB format (8+3 chars, padded with blanks),
158 * expanding wild cards and converting to upper-case in the process.
159 * File name can be terminated by '\0', '\\' or '/'.
160 * Return FALSE if the name is not a valid DOS name.
161 * 'buffer' must be at least 12 characters long.
163 BOOL DOSFS_ToDosFCBFormat( LPCSTR name, LPSTR buffer )
165 static const char invalid_chars[] = INVALID_DOS_CHARS;
166 const char *p = name;
169 /* Check for "." and ".." */
173 strcpy( buffer, ". " );
179 return (!*p || (*p == '/') || (*p == '\\'));
182 for (i = 0; i < 8; i++)
199 if (strchr( invalid_chars, *p )) return FALSE;
200 buffer[i] = toupper(*p);
208 /* Skip all chars after wildcard up to first dot */
209 while (*p && (*p != '/') && (*p != '\\') && (*p != '.')) p++;
213 /* Check if name too long */
214 if (*p && (*p != '/') && (*p != '\\') && (*p != '.')) return FALSE;
216 if (*p == '.') p++; /* Skip dot */
218 for (i = 8; i < 11; i++)
228 return FALSE; /* Second extension not allowed */
236 if (strchr( invalid_chars, *p )) return FALSE;
237 buffer[i] = toupper(*p);
244 /* at most 3 character of the extension are processed
245 * is something behind this ?
247 while (*p == '*' || *p == ' ') p++; /* skip wildcards and spaces */
248 return IS_END_OF_NAME(*p);
252 /***********************************************************************
253 * DOSFS_ToDosDTAFormat
255 * Convert a file name from FCB to DTA format (name.ext, null-terminated)
256 * converting to upper-case in the process.
257 * File name can be terminated by '\0', '\\' or '/'.
258 * 'buffer' must be at least 13 characters long.
260 static void DOSFS_ToDosDTAFormat( LPCSTR name, LPSTR buffer )
264 memcpy( buffer, name, 8 );
265 for (p = buffer + 8; (p > buffer) && (p[-1] == ' '); p--);
267 memcpy( p, name + 8, 3 );
268 for (p += 3; p[-1] == ' '; p--);
269 if (p[-1] == '.') p--;
274 /***********************************************************************
277 * Check a DOS file name against a mask (both in FCB format).
279 static int DOSFS_MatchShort( const char *mask, const char *name )
282 for (i = 11; i > 0; i--, mask++, name++)
283 if ((*mask != '?') && (*mask != *name)) return 0;
288 /***********************************************************************
291 * Check a long file name against a mask.
293 static int DOSFS_MatchLong( const char *mask, const char *name,
296 if (!strcmp( mask, "*.*" )) return 1;
297 while (*name && *mask)
302 while (*mask == '*') mask++; /* Skip consecutive '*' */
303 if (!*mask) return 1;
304 if (case_sensitive) while (*name && (*name != *mask)) name++;
305 else while (*name && (toupper(*name) != toupper(*mask))) name++;
308 else if (*mask != '?')
312 if (*mask != *name) return 0;
314 else if (toupper(*mask) != toupper(*name)) return 0;
319 if (*mask == '.') mask++; /* Ignore trailing '.' in mask */
320 return (!*name && !*mask);
324 /***********************************************************************
327 static DOS_DIR *DOSFS_OpenDir( LPCSTR path )
329 DOS_DIR *dir = HeapAlloc( GetProcessHeap(), 0, sizeof(*dir) );
332 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
336 /* Treat empty path as root directory. This simplifies path split into
337 directory and mask in several other places */
338 if (!*path) path = "/";
340 #ifdef VFAT_IOCTL_READDIR_BOTH
342 /* Check if the VFAT ioctl is supported on this directory */
344 if ((dir->fd = open( path, O_RDONLY )) != -1)
346 if (ioctl( dir->fd, VFAT_IOCTL_READDIR_BOTH, (long)dir->dirent ) == -1)
353 /* Set the file pointer back at the start of the directory */
354 lseek( dir->fd, 0, SEEK_SET );
359 #endif /* VFAT_IOCTL_READDIR_BOTH */
361 /* Now use the standard opendir/readdir interface */
363 if (!(dir->dir = opendir( path )))
365 HeapFree( GetProcessHeap(), 0, dir );
372 /***********************************************************************
375 static void DOSFS_CloseDir( DOS_DIR *dir )
377 #ifdef VFAT_IOCTL_READDIR_BOTH
378 if (dir->fd != -1) close( dir->fd );
379 #endif /* VFAT_IOCTL_READDIR_BOTH */
380 if (dir->dir) closedir( dir->dir );
381 HeapFree( GetProcessHeap(), 0, dir );
385 /***********************************************************************
388 static BOOL DOSFS_ReadDir( DOS_DIR *dir, LPCSTR *long_name,
391 struct dirent *dirent;
393 #ifdef VFAT_IOCTL_READDIR_BOTH
396 if (ioctl( dir->fd, VFAT_IOCTL_READDIR_BOTH, (long)dir->dirent ) != -1) {
397 if (!dir->dirent[0].d_reclen) return FALSE;
398 if (!DOSFS_ToDosFCBFormat( dir->dirent[0].d_name, dir->short_name ))
399 dir->short_name[0] = '\0';
400 *short_name = dir->short_name;
401 if (dir->dirent[1].d_name[0]) *long_name = dir->dirent[1].d_name;
402 else *long_name = dir->dirent[0].d_name;
406 #endif /* VFAT_IOCTL_READDIR_BOTH */
408 if (!(dirent = readdir( dir->dir ))) return FALSE;
409 *long_name = dirent->d_name;
415 /***********************************************************************
418 * Transform a Unix file name into a hashed DOS name. If the name is a valid
419 * DOS name, it is converted to upper-case; otherwise it is replaced by a
420 * hashed version that fits in 8.3 format.
421 * File name can be terminated by '\0', '\\' or '/'.
422 * 'buffer' must be at least 13 characters long.
424 static void DOSFS_Hash( LPCSTR name, LPSTR buffer, BOOL dir_format,
427 static const char invalid_chars[] = INVALID_DOS_CHARS "~.";
428 static const char hash_chars[32] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ012345";
435 if (dir_format) strcpy( buffer, " " );
437 if (DOSFS_ValidDOSName( name, ignore_case ))
439 /* Check for '.' and '..' */
443 if (!dir_format) buffer[1] = buffer[2] = '\0';
444 if (name[1] == '.') buffer[1] = '.';
448 /* Simply copy the name, converting to uppercase */
450 for (dst = buffer; !IS_END_OF_NAME(*name) && (*name != '.'); name++)
451 *dst++ = toupper(*name);
454 if (dir_format) dst = buffer + 8;
456 for (name++; !IS_END_OF_NAME(*name); name++)
457 *dst++ = toupper(*name);
459 if (!dir_format) *dst = '\0';
463 /* Compute the hash code of the file name */
464 /* If you know something about hash functions, feel free to */
465 /* insert a better algorithm here... */
468 for (p = name, hash = 0xbeef; !IS_END_OF_NAME(p[1]); p++)
469 hash = (hash<<3) ^ (hash>>5) ^ tolower(*p) ^ (tolower(p[1]) << 8);
470 hash = (hash<<3) ^ (hash>>5) ^ tolower(*p); /* Last character*/
474 for (p = name, hash = 0xbeef; !IS_END_OF_NAME(p[1]); p++)
475 hash = (hash << 3) ^ (hash >> 5) ^ *p ^ (p[1] << 8);
476 hash = (hash << 3) ^ (hash >> 5) ^ *p; /* Last character */
479 /* Find last dot for start of the extension */
480 for (p = name+1, ext = NULL; !IS_END_OF_NAME(*p); p++)
481 if (*p == '.') ext = p;
482 if (ext && IS_END_OF_NAME(ext[1]))
483 ext = NULL; /* Empty extension ignored */
485 /* Copy first 4 chars, replacing invalid chars with '_' */
486 for (i = 4, p = name, dst = buffer; i > 0; i--, p++)
488 if (IS_END_OF_NAME(*p) || (p == ext)) break;
489 *dst++ = strchr( invalid_chars, *p ) ? '_' : toupper(*p);
491 /* Pad to 5 chars with '~' */
492 while (i-- >= 0) *dst++ = '~';
494 /* Insert hash code converted to 3 ASCII chars */
495 *dst++ = hash_chars[(hash >> 10) & 0x1f];
496 *dst++ = hash_chars[(hash >> 5) & 0x1f];
497 *dst++ = hash_chars[hash & 0x1f];
499 /* Copy the first 3 chars of the extension (if any) */
502 if (!dir_format) *dst++ = '.';
503 for (i = 3, ext++; (i > 0) && !IS_END_OF_NAME(*ext); i--, ext++)
504 *dst++ = strchr( invalid_chars, *ext ) ? '_' : toupper(*ext);
506 if (!dir_format) *dst = '\0';
510 /***********************************************************************
513 * Find the Unix file name in a given directory that corresponds to
514 * a file name (either in Unix or DOS format).
515 * File name can be terminated by '\0', '\\' or '/'.
516 * Return TRUE if OK, FALSE if no file name matches.
518 * 'long_buf' must be at least 'long_len' characters long. If the long name
519 * turns out to be larger than that, the function returns FALSE.
520 * 'short_buf' must be at least 13 characters long.
522 BOOL DOSFS_FindUnixName( LPCSTR path, LPCSTR name, LPSTR long_buf,
523 INT long_len, LPSTR short_buf, BOOL ignore_case)
526 LPCSTR long_name, short_name;
527 char dos_name[12], tmp_buf[13];
530 const char *p = strchr( name, '/' );
531 int len = p ? (int)(p - name) : strlen(name);
532 if ((p = strchr( name, '\\' ))) len = min( (int)(p - name), len );
533 /* Ignore trailing dots and spaces */
534 while (len > 1 && (name[len-1] == '.' || name[len-1] == ' ')) len--;
535 if (long_len < len + 1) return FALSE;
537 TRACE("%s,%s\n", path, name );
539 if (!DOSFS_ToDosFCBFormat( name, dos_name )) dos_name[0] = '\0';
541 if (!(dir = DOSFS_OpenDir( path )))
543 WARN("(%s,%s): can't open dir: %s\n",
544 path, name, strerror(errno) );
548 while ((ret = DOSFS_ReadDir( dir, &long_name, &short_name )))
550 /* Check against Unix name */
551 if (len == strlen(long_name))
555 if (!strncmp( long_name, name, len )) break;
559 if (!lstrncmpiA( long_name, name, len )) break;
564 /* Check against hashed DOS name */
567 DOSFS_Hash( long_name, tmp_buf, TRUE, ignore_case );
568 short_name = tmp_buf;
570 if (!strcmp( dos_name, short_name )) break;
575 if (long_buf) strcpy( long_buf, long_name );
579 DOSFS_ToDosDTAFormat( short_name, short_buf );
581 DOSFS_Hash( long_name, short_buf, FALSE, ignore_case );
583 TRACE("(%s,%s) -> %s (%s)\n",
584 path, name, long_name, short_buf ? short_buf : "***");
587 WARN("'%s' not found in '%s'\n", name, path);
588 DOSFS_CloseDir( dir );
593 /***********************************************************************
596 * Check if a DOS file name represents a DOS device and return the device.
598 const DOS_DEVICE *DOSFS_GetDevice( const char *name )
603 if (!name) return NULL; /* if FILE_DupUnixHandle was used */
604 if (name[0] && (name[1] == ':')) name += 2;
605 if ((p = strrchr( name, '/' ))) name = p + 1;
606 if ((p = strrchr( name, '\\' ))) name = p + 1;
607 for (i = 0; i < sizeof(DOSFS_Devices)/sizeof(DOSFS_Devices[0]); i++)
609 const char *dev = DOSFS_Devices[i].name;
610 if (!lstrncmpiA( dev, name, strlen(dev) ))
612 p = name + strlen( dev );
613 if (!*p || (*p == '.')) return &DOSFS_Devices[i];
620 /***********************************************************************
621 * DOSFS_GetDeviceByHandle
623 const DOS_DEVICE *DOSFS_GetDeviceByHandle( HFILE hFile )
625 struct get_file_info_request *req = get_req_buffer();
628 if (!server_call( REQ_GET_FILE_INFO ) && (req->type == FILE_TYPE_UNKNOWN))
630 if ((req->attr >= 0) &&
631 (req->attr < sizeof(DOSFS_Devices)/sizeof(DOSFS_Devices[0])))
632 return &DOSFS_Devices[req->attr];
638 /***********************************************************************
641 * Open a DOS device. This might not map 1:1 into the UNIX device concept.
643 HFILE DOSFS_OpenDevice( const char *name, DWORD access )
648 if (!name) return (HFILE)NULL; /* if FILE_DupUnixHandle was used */
649 if (name[0] && (name[1] == ':')) name += 2;
650 if ((p = strrchr( name, '/' ))) name = p + 1;
651 if ((p = strrchr( name, '\\' ))) name = p + 1;
652 for (i = 0; i < sizeof(DOSFS_Devices)/sizeof(DOSFS_Devices[0]); i++)
654 const char *dev = DOSFS_Devices[i].name;
655 if (!lstrncmpiA( dev, name, strlen(dev) ))
657 p = name + strlen( dev );
658 if (!*p || (*p == '.')) {
660 if (!strcmp(DOSFS_Devices[i].name,"NUL"))
661 return FILE_CreateFile( "/dev/null", access,
662 FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
663 OPEN_EXISTING, 0, -1, TRUE );
664 if (!strcmp(DOSFS_Devices[i].name,"CON")) {
667 switch (access & (GENERIC_READ|GENERIC_WRITE)) {
669 to_dup = GetStdHandle( STD_INPUT_HANDLE );
672 to_dup = GetStdHandle( STD_OUTPUT_HANDLE );
675 FIXME("can't open CON read/write\n");
679 if (!DuplicateHandle( GetCurrentProcess(), to_dup, GetCurrentProcess(),
680 &handle, 0, FALSE, DUPLICATE_SAME_ACCESS ))
681 handle = HFILE_ERROR;
684 if (!strcmp(DOSFS_Devices[i].name,"SCSIMGR$") ||
685 !strcmp(DOSFS_Devices[i].name,"HPSCAN"))
687 return FILE_CreateDevice( i, access, NULL );
692 PROFILE_GetWineIniString("serialports",name,"",devname,sizeof devname);
696 TRACE_(file)("DOSFS_OpenDevice %s is %s\n",
697 DOSFS_Devices[i].name,devname);
698 r = FILE_CreateFile( devname, access,
699 FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
700 OPEN_EXISTING, 0, -1, TRUE );
701 TRACE_(file)("Create_File return %08X\n",r);
706 FIXME("device open %s not supported (yet)\n",DOSFS_Devices[i].name);
715 /***********************************************************************
718 * Get the drive specified by a given path name (DOS or Unix format).
720 static int DOSFS_GetPathDrive( const char **name )
723 const char *p = *name;
725 if (*p && (p[1] == ':'))
727 drive = toupper(*p) - 'A';
730 else if (*p == '/') /* Absolute Unix path? */
732 if ((drive = DRIVE_FindDriveRoot( name )) == -1)
734 MESSAGE("Warning: %s not accessible from a DOS drive\n", *name );
735 /* Assume it really was a DOS name */
736 drive = DRIVE_GetCurrentDrive();
739 else drive = DRIVE_GetCurrentDrive();
741 if (!DRIVE_IsValid(drive))
743 SetLastError( ERROR_INVALID_DRIVE );
750 /***********************************************************************
753 * Convert a file name (DOS or mixed DOS/Unix format) to a valid
754 * Unix name / short DOS name pair.
755 * Return FALSE if one of the path components does not exist. The last path
756 * component is only checked if 'check_last' is non-zero.
757 * The buffers pointed to by 'long_buf' and 'short_buf' must be
758 * at least MAX_PATHNAME_LEN long.
760 BOOL DOSFS_GetFullName( LPCSTR name, BOOL check_last, DOS_FULL_NAME *full )
764 char *p_l, *p_s, *root;
766 TRACE("%s (last=%d)\n", name, check_last );
768 if ((full->drive = DOSFS_GetPathDrive( &name )) == -1) return FALSE;
769 flags = DRIVE_GetFlags( full->drive );
771 lstrcpynA( full->long_name, DRIVE_GetRoot( full->drive ),
772 sizeof(full->long_name) );
773 if (full->long_name[1]) root = full->long_name + strlen(full->long_name);
774 else root = full->long_name; /* root directory */
776 strcpy( full->short_name, "A:\\" );
777 full->short_name[0] += full->drive;
779 if ((*name == '\\') || (*name == '/')) /* Absolute path */
781 while ((*name == '\\') || (*name == '/')) name++;
783 else /* Relative path */
785 lstrcpynA( root + 1, DRIVE_GetUnixCwd( full->drive ),
786 sizeof(full->long_name) - (root - full->long_name) - 1 );
787 if (root[1]) *root = '/';
788 lstrcpynA( full->short_name + 3, DRIVE_GetDosCwd( full->drive ),
789 sizeof(full->short_name) - 3 );
792 p_l = full->long_name[1] ? full->long_name + strlen(full->long_name)
794 p_s = full->short_name[3] ? full->short_name + strlen(full->short_name)
795 : full->short_name + 2;
798 while (*name && found)
800 /* Check for '.' and '..' */
804 if (IS_END_OF_NAME(name[1]))
807 while ((*name == '\\') || (*name == '/')) name++;
810 else if ((name[1] == '.') && IS_END_OF_NAME(name[2]))
813 while ((*name == '\\') || (*name == '/')) name++;
814 while ((p_l > root) && (*p_l != '/')) p_l--;
815 while ((p_s > full->short_name + 2) && (*p_s != '\\')) p_s--;
816 *p_l = *p_s = '\0'; /* Remove trailing separator */
821 /* Make sure buffers are large enough */
823 if ((p_s >= full->short_name + sizeof(full->short_name) - 14) ||
824 (p_l >= full->long_name + sizeof(full->long_name) - 1))
826 SetLastError( ERROR_PATH_NOT_FOUND );
830 /* Get the long and short name matching the file name */
832 if ((found = DOSFS_FindUnixName( full->long_name, name, p_l + 1,
833 sizeof(full->long_name) - (p_l - full->long_name) - 1,
834 p_s + 1, !(flags & DRIVE_CASE_SENSITIVE) )))
840 while (!IS_END_OF_NAME(*name)) name++;
842 else if (!check_last)
846 while (!IS_END_OF_NAME(*name) &&
847 (p_s < full->short_name + sizeof(full->short_name) - 1) &&
848 (p_l < full->long_name + sizeof(full->long_name) - 1))
850 *p_s++ = tolower(*name);
851 /* If the drive is case-sensitive we want to create new */
852 /* files in lower-case otherwise we can't reopen them */
853 /* under the same short name. */
854 if (flags & DRIVE_CASE_SENSITIVE) *p_l++ = tolower(*name);
858 /* Ignore trailing dots and spaces */
859 while(p_l[-1] == '.' || p_l[-1] == ' ') {
865 while ((*name == '\\') || (*name == '/')) name++;
872 SetLastError( ERROR_FILE_NOT_FOUND );
875 if (*name) /* Not last */
877 SetLastError( ERROR_PATH_NOT_FOUND );
881 if (!full->long_name[0]) strcpy( full->long_name, "/" );
882 if (!full->short_name[2]) strcpy( full->short_name + 2, "\\" );
883 TRACE("returning %s = %s\n", full->long_name, full->short_name );
888 /***********************************************************************
889 * GetShortPathNameA (KERNEL32.271)
893 * longpath=NULL: LastError=ERROR_INVALID_PARAMETER, ret=0
894 * *longpath="" or invalid: LastError=ERROR_BAD_PATHNAME, ret=0
896 * more observations ( with NT 3.51 (WinDD) ):
897 * longpath <= 8.3 -> just copy longpath to shortpath
899 * a) file does not exist -> return 0, LastError = ERROR_FILE_NOT_FOUND
900 * b) file does exist -> set the short filename.
901 * - trailing slashes are reproduced in the short name, even if the
902 * file is not a directory
903 * - the absolute/relative path of the short name is reproduced like found
905 * - longpath and shortpath may have the same adress
908 DWORD WINAPI GetShortPathNameA( LPCSTR longpath, LPSTR shortpath,
911 DOS_FULL_NAME full_name;
913 DWORD sp = 0, lp = 0;
917 TRACE("%s\n", debugstr_a(longpath));
920 SetLastError(ERROR_INVALID_PARAMETER);
924 SetLastError(ERROR_BAD_PATHNAME);
928 if ( ( tmpshortpath = HeapAlloc ( GetProcessHeap(), 0, MAX_PATHNAME_LEN ) ) == NULL ) {
929 SetLastError ( ERROR_NOT_ENOUGH_MEMORY );
933 /* check for drive letter */
934 if ( longpath[1] == ':' ) {
935 tmpshortpath[0] = longpath[0];
936 tmpshortpath[1] = ':';
940 if ( ( drive = DOSFS_GetPathDrive ( &longpath )) == -1 ) return 0;
941 flags = DRIVE_GetFlags ( drive );
943 while ( longpath[lp] ) {
945 /* check for path delimiters and reproduce them */
946 if ( longpath[lp] == '\\' || longpath[lp] == '/' ) {
947 if (!sp || tmpshortpath[sp-1]!= '\\')
949 /* strip double "\\" */
950 tmpshortpath[sp] = '\\';
953 tmpshortpath[sp]=0;/*terminate string*/
958 tmplen = strcspn ( longpath + lp, "\\/" );
959 lstrcpynA ( tmpshortpath+sp, longpath + lp, tmplen+1 );
961 /* Check, if the current element is a valid dos name */
962 if ( DOSFS_ValidDOSName ( longpath + lp, !(flags & DRIVE_CASE_SENSITIVE) ) ) {
968 /* Check if the file exists and use the existing file name */
969 if ( DOSFS_GetFullName ( tmpshortpath, TRUE, &full_name ) ) {
970 lstrcpyA ( tmpshortpath+sp, strrchr ( full_name.short_name, '\\' ) + 1 );
971 sp += lstrlenA ( tmpshortpath+sp );
976 TRACE("not found!\n" );
977 SetLastError ( ERROR_FILE_NOT_FOUND );
980 tmpshortpath[sp] = 0;
982 lstrcpynA ( shortpath, tmpshortpath, shortlen );
983 TRACE("returning %s\n", debugstr_a(shortpath) );
984 tmplen = lstrlenA ( tmpshortpath );
985 HeapFree ( GetProcessHeap(), 0, tmpshortpath );
991 /***********************************************************************
992 * GetShortPathNameW (KERNEL32.272)
994 DWORD WINAPI GetShortPathNameW( LPCWSTR longpath, LPWSTR shortpath,
997 LPSTR longpathA, shortpathA;
1000 longpathA = HEAP_strdupWtoA( GetProcessHeap(), 0, longpath );
1001 shortpathA = HeapAlloc ( GetProcessHeap(), 0, shortlen );
1003 ret = GetShortPathNameA ( longpathA, shortpathA, shortlen );
1004 lstrcpynAtoW ( shortpath, shortpathA, shortlen );
1006 HeapFree( GetProcessHeap(), 0, longpathA );
1007 HeapFree( GetProcessHeap(), 0, shortpathA );
1013 /***********************************************************************
1014 * GetLongPathNameA (KERNEL32.xxx)
1016 DWORD WINAPI GetLongPathNameA( LPCSTR shortpath, LPSTR longpath,
1019 DOS_FULL_NAME full_name;
1020 char *p, *r, *ll, *ss;
1022 if (!DOSFS_GetFullName( shortpath, TRUE, &full_name )) return 0;
1023 lstrcpynA( longpath, full_name.short_name, longlen );
1025 /* Do some hackery to get the long filename. */
1028 ss=longpath+strlen(longpath);
1029 ll=full_name.long_name+strlen(full_name.long_name);
1031 while (ss>=longpath)
1033 /* FIXME: aren't we more paranoid, than needed? */
1034 while ((ss[0]=='\\') && (ss>=longpath)) ss--;
1036 while ((ss[0]!='\\') && (ss>=longpath)) ss--;
1039 /* FIXME: aren't we more paranoid, than needed? */
1040 while ((ll[0]=='/') && (ll>=full_name.long_name)) ll--;
1041 while ((ll[0]!='/') && (ll>=full_name.long_name)) ll--;
1042 if (ll<full_name.long_name)
1044 ERR("Bad longname! (ss=%s ll=%s)\n This should never happen !\n"
1051 /* FIXME: fix for names like "C:\\" (ie. with more '\'s) */
1055 if ((p-longpath)>0) longlen -= (p-longpath);
1056 lstrcpynA( p, ll , longlen);
1058 /* Now, change all '/' to '\' */
1059 for (r=p; r<(p+longlen); r++ )
1060 if (r[0]=='/') r[0]='\\';
1061 return strlen(longpath) - strlen(p) + longlen;
1065 return strlen(longpath);
1069 /***********************************************************************
1070 * GetLongPathNameW (KERNEL32.269)
1072 DWORD WINAPI GetLongPathNameW( LPCWSTR shortpath, LPWSTR longpath,
1075 DOS_FULL_NAME full_name;
1077 LPSTR shortpathA = HEAP_strdupWtoA( GetProcessHeap(), 0, shortpath );
1079 /* FIXME: is it correct to always return a fully qualified short path? */
1080 if (DOSFS_GetFullName( shortpathA, TRUE, &full_name ))
1082 ret = strlen( full_name.short_name );
1083 lstrcpynAtoW( longpath, full_name.long_name, longlen );
1085 HeapFree( GetProcessHeap(), 0, shortpathA );
1090 /***********************************************************************
1091 * DOSFS_DoGetFullPathName
1093 * Implementation of GetFullPathNameA/W.
1095 * bon@elektron 000331:
1096 * A test for GetFullPathName with many patholotical case
1097 * gives now identical output for Wine and OSR2
1099 static DWORD DOSFS_DoGetFullPathName( LPCSTR name, DWORD len, LPSTR result,
1103 DOS_FULL_NAME full_name;
1106 char drivecur[]="c:.";
1108 int namelen,drive=0;
1110 if ((strlen(name) >1)&& (name[1]==':'))
1111 /*drive letter given */
1113 driveletter = name[0];
1115 if ((strlen(name) >2)&& (name[1]==':') &&
1116 ((name[2]=='\\') || (name[2]=='/')))
1117 /*absolute path given */
1119 lstrcpynA(full_name.short_name,name,MAX_PATHNAME_LEN);
1120 drive = (int)toupper(name[0]) - 'A';
1125 drivecur[0]=driveletter;
1127 strcpy(drivecur,".");
1128 if (!DOSFS_GetFullName( drivecur, FALSE, &full_name ))
1130 FIXME("internal: error getting drive/path\n");
1133 /* find path that drive letter substitutes*/
1134 drive = (int)toupper(full_name.short_name[0]) -0x41;
1135 root= DRIVE_GetRoot(drive);
1138 FIXME("internal: error getting DOS Drive Root\n");
1141 p= full_name.long_name +strlen(root);
1142 /* append long name (= unix name) to drive */
1143 lstrcpynA(full_name.short_name+2,p,MAX_PATHNAME_LEN-3);
1144 /* append name to treat */
1145 namelen= strlen(full_name.short_name);
1148 p += +2; /* skip drive name when appending */
1149 if (namelen +2 + strlen(p) > MAX_PATHNAME_LEN)
1151 FIXME("internal error: buffer too small\n");
1154 full_name.short_name[namelen++] ='\\';
1155 full_name.short_name[namelen] = 0;
1156 lstrcpynA(full_name.short_name +namelen,p,MAX_PATHNAME_LEN-namelen);
1158 /* reverse all slashes */
1159 for (p=full_name.short_name;
1160 p < full_name.short_name+strlen(full_name.short_name);
1166 /* Use memmove, as areas overlap*/
1168 while ((p = strstr(full_name.short_name,"\\..\\")))
1170 if (p > full_name.short_name+2)
1173 q = strrchr(full_name.short_name,'\\');
1174 memmove(q+1,p+4,strlen(p+4)+1);
1178 memmove(full_name.short_name+3,p+4,strlen(p+4)+1);
1181 if ((full_name.short_name[2]=='.')&&(full_name.short_name[3]=='.'))
1183 /* This case istn't treated yet : c:..\test */
1184 memmove(full_name.short_name+2,full_name.short_name+4,
1185 strlen(full_name.short_name+4)+1);
1188 while ((p = strstr(full_name.short_name,"\\.\\")))
1191 memmove(p+1,p+3,strlen(p+3)+1);
1193 if (!(DRIVE_GetFlags(drive) & DRIVE_CASE_PRESERVING))
1194 CharUpperA( full_name.short_name );
1195 namelen=strlen(full_name.short_name);
1196 if (!strcmp(full_name.short_name+namelen-3,"\\.."))
1198 /* one more starnge case: "c:\test\test1\.."
1200 *(full_name.short_name+namelen-3)=0;
1201 q = strrchr(full_name.short_name,'\\');
1204 if (full_name.short_name[namelen-1]=='.')
1205 full_name.short_name[(namelen--)-1] =0;
1207 if (full_name.short_name[namelen-1]=='\\')
1208 full_name.short_name[(namelen--)-1] =0;
1209 TRACE("got %s\n",full_name.short_name);
1211 /* If the lpBuffer buffer is too small, the return value is the
1212 size of the buffer, in characters, required to hold the path
1213 plus the terminating \0 (tested against win95osr, bon 001118)
1215 ret = strlen(full_name.short_name);
1218 /* don't touch anything when the buffer is not large enough */
1219 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1225 lstrcpynAtoW( (LPWSTR)result, full_name.short_name, len );
1227 lstrcpynA( result, full_name.short_name, len );
1230 TRACE("returning '%s'\n", full_name.short_name );
1235 /***********************************************************************
1236 * GetFullPathNameA (KERNEL32.272)
1238 * if the path closed with '\', *lastpart is 0
1240 DWORD WINAPI GetFullPathNameA( LPCSTR name, DWORD len, LPSTR buffer,
1243 DWORD ret = DOSFS_DoGetFullPathName( name, len, buffer, FALSE );
1244 if (ret && (ret<=len) && buffer && lastpart)
1246 LPSTR p = buffer + strlen(buffer);
1250 while ((p > buffer + 2) && (*p != '\\')) p--;
1253 else *lastpart = NULL;
1259 /***********************************************************************
1260 * GetFullPathNameW (KERNEL32.273)
1262 DWORD WINAPI GetFullPathNameW( LPCWSTR name, DWORD len, LPWSTR buffer,
1265 LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name );
1266 DWORD ret = DOSFS_DoGetFullPathName( nameA, len, (LPSTR)buffer, TRUE );
1267 HeapFree( GetProcessHeap(), 0, nameA );
1268 if (ret && (ret<=len) && buffer && lastpart)
1270 LPWSTR p = buffer + lstrlenW(buffer);
1271 if (*p != (WCHAR)'\\')
1273 while ((p > buffer + 2) && (*p != (WCHAR)'\\')) p--;
1276 else *lastpart = NULL;
1281 /***********************************************************************
1284 static int DOSFS_FindNextEx( FIND_FIRST_INFO *info, WIN32_FIND_DATAA *entry )
1286 BYTE attr = info->attr | FA_UNUSED | FA_ARCHIVE | FA_RDONLY;
1287 UINT flags = DRIVE_GetFlags( info->drive );
1288 char *p, buffer[MAX_PATHNAME_LEN];
1289 const char *drive_path;
1291 LPCSTR long_name, short_name;
1292 BY_HANDLE_FILE_INFORMATION fileinfo;
1295 if ((info->attr & ~(FA_UNUSED | FA_ARCHIVE | FA_RDONLY)) == FA_LABEL)
1297 if (info->cur_pos) return 0;
1298 entry->dwFileAttributes = FILE_ATTRIBUTE_LABEL;
1299 DOSFS_UnixTimeToFileTime( (time_t)0, &entry->ftCreationTime, 0 );
1300 DOSFS_UnixTimeToFileTime( (time_t)0, &entry->ftLastAccessTime, 0 );
1301 DOSFS_UnixTimeToFileTime( (time_t)0, &entry->ftLastWriteTime, 0 );
1302 entry->nFileSizeHigh = 0;
1303 entry->nFileSizeLow = 0;
1304 entry->dwReserved0 = 0;
1305 entry->dwReserved1 = 0;
1306 DOSFS_ToDosDTAFormat( DRIVE_GetLabel( info->drive ), entry->cFileName );
1307 strcpy( entry->cAlternateFileName, entry->cFileName );
1312 drive_path = info->path + strlen(DRIVE_GetRoot( info->drive ));
1313 while ((*drive_path == '/') || (*drive_path == '\\')) drive_path++;
1314 drive_root = !*drive_path;
1316 lstrcpynA( buffer, info->path, sizeof(buffer) - 1 );
1317 strcat( buffer, "/" );
1318 p = buffer + strlen(buffer);
1320 while (DOSFS_ReadDir( info->dir, &long_name, &short_name ))
1324 /* Don't return '.' and '..' in the root of the drive */
1325 if (drive_root && (long_name[0] == '.') &&
1326 (!long_name[1] || ((long_name[1] == '.') && !long_name[2])))
1329 /* Check the long mask */
1331 if (info->long_mask)
1333 if (!DOSFS_MatchLong( info->long_mask, long_name,
1334 flags & DRIVE_CASE_SENSITIVE )) continue;
1337 /* Check the short mask */
1339 if (info->short_mask)
1343 DOSFS_Hash( long_name, dos_name, TRUE,
1344 !(flags & DRIVE_CASE_SENSITIVE) );
1345 short_name = dos_name;
1347 if (!DOSFS_MatchShort( info->short_mask, short_name )) continue;
1350 /* Check the file attributes */
1352 lstrcpynA( p, long_name, sizeof(buffer) - (int)(p - buffer) );
1353 if (!FILE_Stat( buffer, &fileinfo ))
1355 WARN("can't stat %s\n", buffer);
1358 if (fileinfo.dwFileAttributes & ~attr) continue;
1360 /* We now have a matching entry; fill the result and return */
1362 entry->dwFileAttributes = fileinfo.dwFileAttributes;
1363 entry->ftCreationTime = fileinfo.ftCreationTime;
1364 entry->ftLastAccessTime = fileinfo.ftLastAccessTime;
1365 entry->ftLastWriteTime = fileinfo.ftLastWriteTime;
1366 entry->nFileSizeHigh = fileinfo.nFileSizeHigh;
1367 entry->nFileSizeLow = fileinfo.nFileSizeLow;
1370 DOSFS_ToDosDTAFormat( short_name, entry->cAlternateFileName );
1372 DOSFS_Hash( long_name, entry->cAlternateFileName, FALSE,
1373 !(flags & DRIVE_CASE_SENSITIVE) );
1375 lstrcpynA( entry->cFileName, long_name, sizeof(entry->cFileName) );
1376 if (!(flags & DRIVE_CASE_PRESERVING)) CharLowerA( entry->cFileName );
1377 TRACE("returning %s (%s) %02lx %ld\n",
1378 entry->cFileName, entry->cAlternateFileName,
1379 entry->dwFileAttributes, entry->nFileSizeLow );
1382 return 0; /* End of directory */
1385 /***********************************************************************
1388 * Find the next matching file. Return the number of entries read to find
1389 * the matching one, or 0 if no more entries.
1390 * 'short_mask' is the 8.3 mask (in FCB format), 'long_mask' is the long
1391 * file name mask. Either or both can be NULL.
1393 * NOTE: This is supposed to be only called by the int21 emulation
1394 * routines. Thus, we should own the Win16Mutex anyway.
1395 * Nevertheless, we explicitly enter it to ensure the static
1396 * directory cache is protected.
1398 int DOSFS_FindNext( const char *path, const char *short_mask,
1399 const char *long_mask, int drive, BYTE attr,
1400 int skip, WIN32_FIND_DATAA *entry )
1402 static FIND_FIRST_INFO info = { NULL };
1403 LPCSTR short_name, long_name;
1406 SYSLEVEL_EnterWin16Lock();
1408 /* Check the cached directory */
1409 if (!(info.dir && info.path == path && info.short_mask == short_mask
1410 && info.long_mask == long_mask && info.drive == drive
1411 && info.attr == attr && info.cur_pos <= skip))
1413 /* Not in the cache, open it anew */
1414 if (info.dir) DOSFS_CloseDir( info.dir );
1416 info.path = (LPSTR)path;
1417 info.long_mask = (LPSTR)long_mask;
1418 info.short_mask = (LPSTR)short_mask;
1422 info.dir = DOSFS_OpenDir( info.path );
1425 /* Skip to desired position */
1426 while (info.cur_pos < skip)
1427 if (info.dir && DOSFS_ReadDir( info.dir, &long_name, &short_name ))
1432 if (info.dir && info.cur_pos == skip && DOSFS_FindNextEx( &info, entry ))
1433 count = info.cur_pos - skip;
1439 if (info.dir) DOSFS_CloseDir( info.dir );
1440 memset( &info, '\0', sizeof(info) );
1443 SYSLEVEL_LeaveWin16Lock();
1448 /*************************************************************************
1449 * FindFirstFileExA (KERNEL32)
1451 HANDLE WINAPI FindFirstFileExA(
1453 FINDEX_INFO_LEVELS fInfoLevelId,
1454 LPVOID lpFindFileData,
1455 FINDEX_SEARCH_OPS fSearchOp,
1456 LPVOID lpSearchFilter,
1457 DWORD dwAdditionalFlags)
1459 DOS_FULL_NAME full_name;
1461 FIND_FIRST_INFO *info;
1463 if ((fSearchOp != FindExSearchNameMatch) || (dwAdditionalFlags != 0))
1465 FIXME("options not implemented 0x%08x 0x%08lx\n", fSearchOp, dwAdditionalFlags );
1466 return INVALID_HANDLE_VALUE;
1469 switch(fInfoLevelId)
1471 case FindExInfoStandard:
1473 WIN32_FIND_DATAA * data = (WIN32_FIND_DATAA *) lpFindFileData;
1474 data->dwReserved0 = data->dwReserved1 = 0x0;
1475 if (!lpFileName) return 0;
1476 if (!DOSFS_GetFullName( lpFileName, FALSE, &full_name )) break;
1477 if (!(handle = GlobalAlloc(GMEM_MOVEABLE, sizeof(FIND_FIRST_INFO)))) break;
1478 info = (FIND_FIRST_INFO *)GlobalLock( handle );
1479 info->path = HEAP_strdupA( GetProcessHeap(), 0, full_name.long_name );
1480 info->long_mask = strrchr( info->path, '/' );
1481 *(info->long_mask++) = '\0';
1482 info->short_mask = NULL;
1484 if (lpFileName[0] && (lpFileName[1] == ':'))
1485 info->drive = toupper(*lpFileName) - 'A';
1486 else info->drive = DRIVE_GetCurrentDrive();
1489 info->dir = DOSFS_OpenDir( info->path );
1491 GlobalUnlock( handle );
1492 if (!FindNextFileA( handle, data ))
1494 FindClose( handle );
1495 SetLastError( ERROR_NO_MORE_FILES );
1502 FIXME("fInfoLevelId 0x%08x not implemented\n", fInfoLevelId );
1504 return INVALID_HANDLE_VALUE;
1507 /*************************************************************************
1508 * FindFirstFileA (KERNEL32.123)
1510 HANDLE WINAPI FindFirstFileA(
1512 WIN32_FIND_DATAA *lpFindData )
1514 return FindFirstFileExA(lpFileName, FindExInfoStandard, lpFindData,
1515 FindExSearchNameMatch, NULL, 0);
1518 /*************************************************************************
1519 * FindFirstFileExW (KERNEL32)
1521 HANDLE WINAPI FindFirstFileExW(
1523 FINDEX_INFO_LEVELS fInfoLevelId,
1524 LPVOID lpFindFileData,
1525 FINDEX_SEARCH_OPS fSearchOp,
1526 LPVOID lpSearchFilter,
1527 DWORD dwAdditionalFlags)
1530 WIN32_FIND_DATAA dataA;
1531 LPVOID _lpFindFileData;
1534 switch(fInfoLevelId)
1536 case FindExInfoStandard:
1538 _lpFindFileData = &dataA;
1542 FIXME("fInfoLevelId 0x%08x not implemented\n", fInfoLevelId );
1543 return INVALID_HANDLE_VALUE;
1546 pathA = HEAP_strdupWtoA( GetProcessHeap(), 0, lpFileName );
1547 handle = FindFirstFileExA(pathA, fInfoLevelId, _lpFindFileData, fSearchOp, lpSearchFilter, dwAdditionalFlags);
1548 HeapFree( GetProcessHeap(), 0, pathA );
1549 if (handle == INVALID_HANDLE_VALUE) return handle;
1551 switch(fInfoLevelId)
1553 case FindExInfoStandard:
1555 WIN32_FIND_DATAW *dataW = (WIN32_FIND_DATAW*) lpFindFileData;
1556 dataW->dwFileAttributes = dataA.dwFileAttributes;
1557 dataW->ftCreationTime = dataA.ftCreationTime;
1558 dataW->ftLastAccessTime = dataA.ftLastAccessTime;
1559 dataW->ftLastWriteTime = dataA.ftLastWriteTime;
1560 dataW->nFileSizeHigh = dataA.nFileSizeHigh;
1561 dataW->nFileSizeLow = dataA.nFileSizeLow;
1562 lstrcpyAtoW( dataW->cFileName, dataA.cFileName );
1563 lstrcpyAtoW( dataW->cAlternateFileName, dataA.cAlternateFileName );
1567 FIXME("fInfoLevelId 0x%08x not implemented\n", fInfoLevelId );
1568 return INVALID_HANDLE_VALUE;
1573 /*************************************************************************
1574 * FindFirstFileW (KERNEL32.124)
1576 HANDLE WINAPI FindFirstFileW( LPCWSTR lpFileName, WIN32_FIND_DATAW *lpFindData )
1578 return FindFirstFileExW(lpFileName, FindExInfoStandard, lpFindData,
1579 FindExSearchNameMatch, NULL, 0);
1582 /*************************************************************************
1583 * FindNextFileA (KERNEL32.126)
1585 BOOL WINAPI FindNextFileA( HANDLE handle, WIN32_FIND_DATAA *data )
1587 FIND_FIRST_INFO *info;
1589 if ((handle == INVALID_HANDLE_VALUE) ||
1590 !(info = (FIND_FIRST_INFO *)GlobalLock( handle )))
1592 SetLastError( ERROR_INVALID_HANDLE );
1595 GlobalUnlock( handle );
1596 if (!info->path || !info->dir)
1598 SetLastError( ERROR_NO_MORE_FILES );
1601 if (!DOSFS_FindNextEx( info, data ))
1603 DOSFS_CloseDir( info->dir ); info->dir = NULL;
1604 HeapFree( GetProcessHeap(), 0, info->path );
1605 info->path = info->long_mask = NULL;
1606 SetLastError( ERROR_NO_MORE_FILES );
1613 /*************************************************************************
1614 * FindNextFileW (KERNEL32.127)
1616 BOOL WINAPI FindNextFileW( HANDLE handle, WIN32_FIND_DATAW *data )
1618 WIN32_FIND_DATAA dataA;
1619 if (!FindNextFileA( handle, &dataA )) return FALSE;
1620 data->dwFileAttributes = dataA.dwFileAttributes;
1621 data->ftCreationTime = dataA.ftCreationTime;
1622 data->ftLastAccessTime = dataA.ftLastAccessTime;
1623 data->ftLastWriteTime = dataA.ftLastWriteTime;
1624 data->nFileSizeHigh = dataA.nFileSizeHigh;
1625 data->nFileSizeLow = dataA.nFileSizeLow;
1626 lstrcpyAtoW( data->cFileName, dataA.cFileName );
1627 lstrcpyAtoW( data->cAlternateFileName, dataA.cAlternateFileName );
1631 /*************************************************************************
1632 * FindClose (KERNEL32.119)
1634 BOOL WINAPI FindClose( HANDLE handle )
1636 FIND_FIRST_INFO *info;
1638 if ((handle == INVALID_HANDLE_VALUE) ||
1639 !(info = (FIND_FIRST_INFO *)GlobalLock( handle )))
1641 SetLastError( ERROR_INVALID_HANDLE );
1644 if (info->dir) DOSFS_CloseDir( info->dir );
1645 if (info->path) HeapFree( GetProcessHeap(), 0, info->path );
1646 GlobalUnlock( handle );
1647 GlobalFree( handle );
1651 /***********************************************************************
1652 * DOSFS_UnixTimeToFileTime
1654 * Convert a Unix time to FILETIME format.
1655 * The FILETIME structure is a 64-bit value representing the number of
1656 * 100-nanosecond intervals since January 1, 1601, 0:00.
1657 * 'remainder' is the nonnegative number of 100-ns intervals
1658 * corresponding to the time fraction smaller than 1 second that
1659 * couldn't be stored in the time_t value.
1661 void DOSFS_UnixTimeToFileTime( time_t unix_time, FILETIME *filetime,
1667 The time difference between 1 January 1601, 00:00:00 and
1668 1 January 1970, 00:00:00 is 369 years, plus the leap years
1669 from 1604 to 1968, excluding 1700, 1800, 1900.
1670 This makes (1968 - 1600) / 4 - 3 = 89 leap days, and a total
1673 Any day in that period had 24 * 60 * 60 = 86400 seconds.
1675 The time difference is 134774 * 86400 * 10000000, which can be written
1677 27111902 * 2^32 + 3577643008
1678 413 * 2^48 + 45534 * 2^32 + 54590 * 2^16 + 32768
1680 If you find that these constants are buggy, please change them in all
1681 instances in both conversion functions.
1684 There are two versions, one of them uses long long variables and
1685 is presumably faster but not ISO C. The other one uses standard C
1686 data types and operations but relies on the assumption that negative
1687 numbers are stored as 2's complement (-1 is 0xffff....). If this
1688 assumption is violated, dates before 1970 will not convert correctly.
1689 This should however work on any reasonable architecture where WINE
1694 Take care not to remove the casts. I have tested these functions
1695 (in both versions) for a lot of numbers. I would be interested in
1696 results on other compilers than GCC.
1698 The operations have been designed to account for the possibility
1699 of 64-bit time_t in future UNICES. Even the versions without
1700 internal long long numbers will work if time_t only is 64 bit.
1701 A 32-bit shift, which was necessary for that operation, turned out
1702 not to work correctly in GCC, besides giving the warning. So I
1703 used a double 16-bit shift instead. Numbers are in the ISO version
1704 represented by three limbs, the most significant with 32 bit, the
1705 other two with 16 bit each.
1707 As the modulo-operator % is not well-defined for negative numbers,
1708 negative divisors have been avoided in DOSFS_FileTimeToUnixTime.
1710 There might be quicker ways to do this in C. Certainly so in
1713 Claus Fischer, fischer@iue.tuwien.ac.at
1716 #if SIZEOF_LONG_LONG >= 8
1717 # define USE_LONG_LONG 1
1719 # define USE_LONG_LONG 0
1722 #if USE_LONG_LONG /* gcc supports long long type */
1724 long long int t = unix_time;
1726 t += 116444736000000000LL;
1728 filetime->dwLowDateTime = (UINT)t;
1729 filetime->dwHighDateTime = (UINT)(t >> 32);
1731 #else /* ISO version */
1733 UINT a0; /* 16 bit, low bits */
1734 UINT a1; /* 16 bit, medium bits */
1735 UINT a2; /* 32 bit, high bits */
1737 /* Copy the unix time to a2/a1/a0 */
1738 a0 = unix_time & 0xffff;
1739 a1 = (unix_time >> 16) & 0xffff;
1740 /* This is obsolete if unix_time is only 32 bits, but it does not hurt.
1741 Do not replace this by >> 32, it gives a compiler warning and it does
1743 a2 = (unix_time >= 0 ? (unix_time >> 16) >> 16 :
1744 ~((~unix_time >> 16) >> 16));
1746 /* Multiply a by 10000000 (a = a2/a1/a0)
1747 Split the factor into 10000 * 1000 which are both less than 0xffff. */
1749 a1 = a1 * 10000 + (a0 >> 16);
1750 a2 = a2 * 10000 + (a1 >> 16);
1755 a1 = a1 * 1000 + (a0 >> 16);
1756 a2 = a2 * 1000 + (a1 >> 16);
1760 /* Add the time difference and the remainder */
1761 a0 += 32768 + (remainder & 0xffff);
1762 a1 += 54590 + (remainder >> 16 ) + (a0 >> 16);
1763 a2 += 27111902 + (a1 >> 16);
1768 filetime->dwLowDateTime = (a1 << 16) + a0;
1769 filetime->dwHighDateTime = a2;
1774 /***********************************************************************
1775 * DOSFS_FileTimeToUnixTime
1777 * Convert a FILETIME format to Unix time.
1778 * If not NULL, 'remainder' contains the fractional part of the filetime,
1779 * in the range of [0..9999999] (even if time_t is negative).
1781 time_t DOSFS_FileTimeToUnixTime( const FILETIME *filetime, DWORD *remainder )
1783 /* Read the comment in the function DOSFS_UnixTimeToFileTime. */
1786 long long int t = filetime->dwHighDateTime;
1788 t += (UINT)filetime->dwLowDateTime;
1789 t -= 116444736000000000LL;
1792 if (remainder) *remainder = 9999999 - (-t - 1) % 10000000;
1793 return -1 - ((-t - 1) / 10000000);
1797 if (remainder) *remainder = t % 10000000;
1798 return t / 10000000;
1801 #else /* ISO version */
1803 UINT a0; /* 16 bit, low bits */
1804 UINT a1; /* 16 bit, medium bits */
1805 UINT a2; /* 32 bit, high bits */
1806 UINT r; /* remainder of division */
1807 unsigned int carry; /* carry bit for subtraction */
1808 int negative; /* whether a represents a negative value */
1810 /* Copy the time values to a2/a1/a0 */
1811 a2 = (UINT)filetime->dwHighDateTime;
1812 a1 = ((UINT)filetime->dwLowDateTime ) >> 16;
1813 a0 = ((UINT)filetime->dwLowDateTime ) & 0xffff;
1815 /* Subtract the time difference */
1816 if (a0 >= 32768 ) a0 -= 32768 , carry = 0;
1817 else a0 += (1 << 16) - 32768 , carry = 1;
1819 if (a1 >= 54590 + carry) a1 -= 54590 + carry, carry = 0;
1820 else a1 += (1 << 16) - 54590 - carry, carry = 1;
1822 a2 -= 27111902 + carry;
1824 /* If a is negative, replace a by (-1-a) */
1825 negative = (a2 >= ((UINT)1) << 31);
1828 /* Set a to -a - 1 (a is a2/a1/a0) */
1834 /* Divide a by 10000000 (a = a2/a1/a0), put the rest into r.
1835 Split the divisor into 10000 * 1000 which are both less than 0xffff. */
1836 a1 += (a2 % 10000) << 16;
1838 a0 += (a1 % 10000) << 16;
1843 a1 += (a2 % 1000) << 16;
1845 a0 += (a1 % 1000) << 16;
1847 r += (a0 % 1000) * 10000;
1850 /* If a was negative, replace a by (-1-a) and r by (9999999 - r) */
1853 /* Set a to -a - 1 (a is a2/a1/a0) */
1861 if (remainder) *remainder = r;
1863 /* Do not replace this by << 32, it gives a compiler warning and it does
1865 return ((((time_t)a2) << 16) << 16) + (a1 << 16) + a0;
1870 /***********************************************************************
1871 * DosDateTimeToFileTime (KERNEL32.76)
1873 BOOL WINAPI DosDateTimeToFileTime( WORD fatdate, WORD fattime, LPFILETIME ft)
1877 newtm.tm_sec = (fattime & 0x1f) * 2;
1878 newtm.tm_min = (fattime >> 5) & 0x3f;
1879 newtm.tm_hour = (fattime >> 11);
1880 newtm.tm_mday = (fatdate & 0x1f);
1881 newtm.tm_mon = ((fatdate >> 5) & 0x0f) - 1;
1882 newtm.tm_year = (fatdate >> 9) + 80;
1883 DOSFS_UnixTimeToFileTime( mktime( &newtm ), ft, 0 );
1888 /***********************************************************************
1889 * FileTimeToDosDateTime (KERNEL32.111)
1891 BOOL WINAPI FileTimeToDosDateTime( const FILETIME *ft, LPWORD fatdate,
1894 time_t unixtime = DOSFS_FileTimeToUnixTime( ft, NULL );
1895 struct tm *tm = localtime( &unixtime );
1897 *fattime = (tm->tm_hour << 11) + (tm->tm_min << 5) + (tm->tm_sec / 2);
1899 *fatdate = ((tm->tm_year - 80) << 9) + ((tm->tm_mon + 1) << 5)
1905 /***********************************************************************
1906 * LocalFileTimeToFileTime (KERNEL32.373)
1908 BOOL WINAPI LocalFileTimeToFileTime( const FILETIME *localft,
1914 /* convert from local to UTC. Perhaps not correct. FIXME */
1915 time_t unixtime = DOSFS_FileTimeToUnixTime( localft, &remainder );
1916 xtm = gmtime( &unixtime );
1917 DOSFS_UnixTimeToFileTime( mktime(xtm), utcft, remainder );
1922 /***********************************************************************
1923 * FileTimeToLocalFileTime (KERNEL32.112)
1925 BOOL WINAPI FileTimeToLocalFileTime( const FILETIME *utcft,
1926 LPFILETIME localft )
1929 /* convert from UTC to local. Perhaps not correct. FIXME */
1930 time_t unixtime = DOSFS_FileTimeToUnixTime( utcft, &remainder );
1932 struct tm *xtm = localtime( &unixtime );
1935 localtime = timegm(xtm);
1936 DOSFS_UnixTimeToFileTime( localtime, localft, remainder );
1939 struct tm *xtm,*gtm;
1942 xtm = localtime( &unixtime );
1943 gtm = gmtime( &unixtime );
1944 time1 = mktime(xtm);
1945 time2 = mktime(gtm);
1946 DOSFS_UnixTimeToFileTime( 2*time1-time2, localft, remainder );
1952 /***********************************************************************
1953 * FileTimeToSystemTime (KERNEL32.113)
1955 BOOL WINAPI FileTimeToSystemTime( const FILETIME *ft, LPSYSTEMTIME syst )
1959 time_t xtime = DOSFS_FileTimeToUnixTime( ft, &remainder );
1960 xtm = gmtime(&xtime);
1961 syst->wYear = xtm->tm_year+1900;
1962 syst->wMonth = xtm->tm_mon + 1;
1963 syst->wDayOfWeek = xtm->tm_wday;
1964 syst->wDay = xtm->tm_mday;
1965 syst->wHour = xtm->tm_hour;
1966 syst->wMinute = xtm->tm_min;
1967 syst->wSecond = xtm->tm_sec;
1968 syst->wMilliseconds = remainder / 10000;
1972 /***********************************************************************
1973 * QueryDosDeviceA (KERNEL32.413)
1975 * returns array of strings terminated by \0, terminated by \0
1977 DWORD WINAPI QueryDosDeviceA(LPCSTR devname,LPSTR target,DWORD bufsize)
1982 TRACE("(%s,...)\n", devname ? devname : "<null>");
1984 /* return known MSDOS devices */
1985 strcpy(buffer,"CON COM1 COM2 LPT1 NUL ");
1986 while ((s=strchr(buffer,' ')))
1989 lstrcpynA(target,buffer,bufsize);
1990 return strlen(buffer);
1992 strcpy(buffer,"\\DEV\\");
1993 strcat(buffer,devname);
1994 if ((s=strchr(buffer,':'))) *s='\0';
1995 lstrcpynA(target,buffer,bufsize);
1996 return strlen(buffer);
2000 /***********************************************************************
2001 * QueryDosDeviceW (KERNEL32.414)
2003 * returns array of strings terminated by \0, terminated by \0
2005 DWORD WINAPI QueryDosDeviceW(LPCWSTR devname,LPWSTR target,DWORD bufsize)
2007 LPSTR devnameA = devname?HEAP_strdupWtoA(GetProcessHeap(),0,devname):NULL;
2008 LPSTR targetA = (LPSTR)HeapAlloc(GetProcessHeap(),0,bufsize);
2009 DWORD ret = QueryDosDeviceA(devnameA,targetA,bufsize);
2011 lstrcpynAtoW(target,targetA,bufsize);
2012 if (devnameA) HeapFree(GetProcessHeap(),0,devnameA);
2013 if (targetA) HeapFree(GetProcessHeap(),0,targetA);
2018 /***********************************************************************
2019 * SystemTimeToFileTime (KERNEL32.526)
2021 BOOL WINAPI SystemTimeToFileTime( const SYSTEMTIME *syst, LPFILETIME ft )
2027 struct tm xtm,*local_tm,*utc_tm;
2028 time_t localtim,utctime;
2031 xtm.tm_year = syst->wYear-1900;
2032 xtm.tm_mon = syst->wMonth - 1;
2033 xtm.tm_wday = syst->wDayOfWeek;
2034 xtm.tm_mday = syst->wDay;
2035 xtm.tm_hour = syst->wHour;
2036 xtm.tm_min = syst->wMinute;
2037 xtm.tm_sec = syst->wSecond; /* this is UTC */
2040 utctime = timegm(&xtm);
2041 DOSFS_UnixTimeToFileTime( utctime, ft,
2042 syst->wMilliseconds * 10000 );
2044 localtim = mktime(&xtm); /* now we've got local time */
2045 local_tm = localtime(&localtim);
2046 utc_tm = gmtime(&localtim);
2047 utctime = mktime(utc_tm);
2048 DOSFS_UnixTimeToFileTime( 2*localtim -utctime, ft,
2049 syst->wMilliseconds * 10000 );
2054 /***********************************************************************
2055 * DefineDosDeviceA (KERNEL32.182)
2057 BOOL WINAPI DefineDosDeviceA(DWORD flags,LPCSTR devname,LPCSTR targetpath) {
2058 FIXME("(0x%08lx,%s,%s),stub!\n",flags,devname,targetpath);
2059 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
2064 --- 16 bit functions ---
2067 /*************************************************************************
2068 * FindFirstFile16 (KERNEL.413)
2070 HANDLE16 WINAPI FindFirstFile16( LPCSTR path, WIN32_FIND_DATAA *data )
2072 DOS_FULL_NAME full_name;
2074 FIND_FIRST_INFO *info;
2076 data->dwReserved0 = data->dwReserved1 = 0x0;
2077 if (!path) return 0;
2078 if (!DOSFS_GetFullName( path, FALSE, &full_name ))
2079 return INVALID_HANDLE_VALUE16;
2080 if (!(handle = GlobalAlloc16( GMEM_MOVEABLE, sizeof(FIND_FIRST_INFO) )))
2081 return INVALID_HANDLE_VALUE16;
2082 info = (FIND_FIRST_INFO *)GlobalLock16( handle );
2083 info->path = HEAP_strdupA( SystemHeap, 0, full_name.long_name );
2084 info->long_mask = strrchr( info->path, '/' );
2085 if (info->long_mask )
2086 *(info->long_mask++) = '\0';
2087 info->short_mask = NULL;
2089 if (path[0] && (path[1] == ':')) info->drive = toupper(*path) - 'A';
2090 else info->drive = DRIVE_GetCurrentDrive();
2093 info->dir = DOSFS_OpenDir( info->path );
2095 GlobalUnlock16( handle );
2096 if (!FindNextFile16( handle, data ))
2098 FindClose16( handle );
2099 SetLastError( ERROR_NO_MORE_FILES );
2100 return INVALID_HANDLE_VALUE16;
2105 /*************************************************************************
2106 * FindNextFile16 (KERNEL.414)
2108 BOOL16 WINAPI FindNextFile16( HANDLE16 handle, WIN32_FIND_DATAA *data )
2110 FIND_FIRST_INFO *info;
2112 if ((handle == INVALID_HANDLE_VALUE16) ||
2113 !(info = (FIND_FIRST_INFO *)GlobalLock16( handle )))
2115 SetLastError( ERROR_INVALID_HANDLE );
2118 GlobalUnlock16( handle );
2119 if (!info->path || !info->dir)
2121 SetLastError( ERROR_NO_MORE_FILES );
2124 if (!DOSFS_FindNextEx( info, data ))
2126 DOSFS_CloseDir( info->dir ); info->dir = NULL;
2127 HeapFree( SystemHeap, 0, info->path );
2128 info->path = info->long_mask = NULL;
2129 SetLastError( ERROR_NO_MORE_FILES );
2135 /*************************************************************************
2136 * FindClose16 (KERNEL.415)
2138 BOOL16 WINAPI FindClose16( HANDLE16 handle )
2140 FIND_FIRST_INFO *info;
2142 if ((handle == INVALID_HANDLE_VALUE16) ||
2143 !(info = (FIND_FIRST_INFO *)GlobalLock16( handle )))
2145 SetLastError( ERROR_INVALID_HANDLE );
2148 if (info->dir) DOSFS_CloseDir( info->dir );
2149 if (info->path) HeapFree( SystemHeap, 0, info->path );
2150 GlobalUnlock16( handle );
2151 GlobalFree16( handle );