159243Sobrien/* 259243Sobrien * sh.dir.h: Directory data structures and globals 359243Sobrien */ 459243Sobrien/*- 559243Sobrien * Copyright (c) 1980, 1991 The Regents of the University of California. 659243Sobrien * All rights reserved. 759243Sobrien * 859243Sobrien * Redistribution and use in source and binary forms, with or without 959243Sobrien * modification, are permitted provided that the following conditions 1059243Sobrien * are met: 1159243Sobrien * 1. Redistributions of source code must retain the above copyright 1259243Sobrien * notice, this list of conditions and the following disclaimer. 1359243Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1459243Sobrien * notice, this list of conditions and the following disclaimer in the 1559243Sobrien * documentation and/or other materials provided with the distribution. 16100616Smp * 3. Neither the name of the University nor the names of its contributors 1759243Sobrien * may be used to endorse or promote products derived from this software 1859243Sobrien * without specific prior written permission. 1959243Sobrien * 2059243Sobrien * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2159243Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2259243Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2359243Sobrien * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2459243Sobrien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2559243Sobrien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2659243Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2759243Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2859243Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2959243Sobrien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3059243Sobrien * SUCH DAMAGE. 3159243Sobrien */ 3259243Sobrien#ifndef _h_sh_dir 3359243Sobrien#define _h_sh_dir 3459243Sobrien/* 3559243Sobrien * Structure for entries in directory stack. 3659243Sobrien */ 3759243Sobrienstruct directory { 3859243Sobrien struct directory *di_next; /* next in loop */ 3959243Sobrien struct directory *di_prev; /* prev in loop */ 4059243Sobrien unsigned short *di_count; /* refcount of processes */ 4159243Sobrien Char *di_name; /* actual name */ 4259243Sobrien}; 4359243SobrienEXTERN struct directory *dcwd IZERO_STRUCT; /* the one we are in now */ 4459243SobrienEXTERN int symlinks; 4559243Sobrien 4659243Sobrien#define SYM_CHASE 1 4759243Sobrien#define SYM_IGNORE 2 4859243Sobrien#define SYM_EXPAND 3 4959243Sobrien 5059243Sobrien#define TRM(a) ((a) & TRIM) 5159243Sobrien#define NTRM(a) (a) 5259243Sobrien#define ISDOT(c) (NTRM((c)[0]) == '.' && ((NTRM((c)[1]) == '\0') || \ 5359243Sobrien (NTRM((c)[1]) == '/'))) 5459243Sobrien#define ISDOTDOT(c) (NTRM((c)[0]) == '.' && ISDOT(&((c)[1]))) 5559243Sobrien 5659243Sobrien#endif /* _h_sh_dir */ 57