| 1 | /* $Header: /afs/dev.mit.edu/source/repository/third/tcsh/sh.dir.h,v 1.1.1.2 1998-10-03 21:09:57 danw Exp $ */ |
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| 2 | /* |
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| 3 | * sh.dir.h: Directory data structures and globals |
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| 4 | */ |
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| 5 | /*- |
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| 6 | * Copyright (c) 1980, 1991 The Regents of the University of California. |
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| 7 | * All rights reserved. |
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| 8 | * |
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| 9 | * Redistribution and use in source and binary forms, with or without |
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| 10 | * modification, are permitted provided that the following conditions |
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| 11 | * are met: |
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| 12 | * 1. Redistributions of source code must retain the above copyright |
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| 13 | * notice, this list of conditions and the following disclaimer. |
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| 14 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 15 | * notice, this list of conditions and the following disclaimer in the |
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| 16 | * documentation and/or other materials provided with the distribution. |
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| 17 | * 3. All advertising materials mentioning features or use of this software |
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| 18 | * must display the following acknowledgement: |
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| 19 | * This product includes software developed by the University of |
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| 20 | * California, Berkeley and its contributors. |
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| 21 | * 4. Neither the name of the University nor the names of its contributors |
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| 22 | * may be used to endorse or promote products derived from this software |
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| 23 | * without specific prior written permission. |
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| 24 | * |
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| 25 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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| 26 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 27 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 28 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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| 29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 30 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 31 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 32 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 33 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 34 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 35 | * SUCH DAMAGE. |
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| 36 | */ |
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| 37 | #ifndef _h_sh_dir |
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| 38 | #define _h_sh_dir |
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| 39 | /* |
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| 40 | * Structure for entries in directory stack. |
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| 41 | */ |
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| 42 | struct directory { |
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| 43 | struct directory *di_next; /* next in loop */ |
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| 44 | struct directory *di_prev; /* prev in loop */ |
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| 45 | unsigned short *di_count; /* refcount of processes */ |
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| 46 | Char *di_name; /* actual name */ |
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| 47 | }; |
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| 48 | EXTERN struct directory *dcwd IZERO_STRUCT; /* the one we are in now */ |
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| 49 | EXTERN int symlinks; |
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| 50 | |
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| 51 | #define SYM_CHASE 1 |
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| 52 | #define SYM_IGNORE 2 |
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| 53 | #define SYM_EXPAND 3 |
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| 54 | |
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| 55 | #define TRM(a) ((a) & TRIM) |
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| 56 | #define NTRM(a) (a) |
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| 57 | #define ISDOT(c) (NTRM((c)[0]) == '.' && ((NTRM((c)[1]) == '\0') || \ |
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| 58 | (NTRM((c)[1]) == '/'))) |
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| 59 | #define ISDOTDOT(c) (NTRM((c)[0]) == '.' && ISDOT(&((c)[1]))) |
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| 60 | |
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| 61 | #endif /* _h_sh_dir */ |
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