expand.c revision dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0
1dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* $NetBSD: expand.c,v 1.68.2.2 2005/04/07 11:37:39 tron Exp $ */ 2dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 3dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/*- 4dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Copyright (c) 1991, 1993 5dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * The Regents of the University of California. All rights reserved. 6dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 7dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * This code is derived from software contributed to Berkeley by 8dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Kenneth Almquist. 9dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 10dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Redistribution and use in source and binary forms, with or without 11dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * modification, are permitted provided that the following conditions 12dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * are met: 13dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 14dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * notice, this list of conditions and the following disclaimer. 15dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 16dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 17dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * documentation and/or other materials provided with the distribution. 18dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 3. Neither the name of the University nor the names of its contributors 19dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * may be used to endorse or promote products derived from this software 20dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * without specific prior written permission. 21dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 22dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * SUCH DAMAGE. 33dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 34dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 35dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/cdefs.h> 36dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#ifndef lint 37dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#if 0 38dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic char sccsid[] = "@(#)expand.c 8.5 (Berkeley) 5/15/95"; 39dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#else 40dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project__RCSID("$NetBSD: expand.c,v 1.68.2.2 2005/04/07 11:37:39 tron Exp $"); 41dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#endif 42dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#endif /* not lint */ 43dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 44dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/types.h> 45dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/time.h> 46dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/stat.h> 47dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <errno.h> 48dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <dirent.h> 49dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <unistd.h> 50dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <stdlib.h> 51dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <stdio.h> 52dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 53dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 54dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Routines to expand arguments to commands. We have to deal with 55dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * backquotes, shell variables, and file metacharacters. 56dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 57dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 58dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "shell.h" 59dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "main.h" 60dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "nodes.h" 61dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "eval.h" 62dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "expand.h" 63dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "syntax.h" 64dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "parser.h" 65dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "jobs.h" 66dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "options.h" 67dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "var.h" 68dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "input.h" 69dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "output.h" 70dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "memalloc.h" 71dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "error.h" 72dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "mystring.h" 73dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "show.h" 74dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 75dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 76dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Structure specifying which parts of the string should be searched 77dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * for IFS characters. 78dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 79dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 80dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct ifsregion { 81dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct ifsregion *next; /* next region in list */ 82dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int begoff; /* offset of start of region */ 83dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int endoff; /* offset of end of region */ 84dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int inquotes; /* search for nul bytes only */ 85dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 86dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 87dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 88dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectchar *expdest; /* output of current string */ 89dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct nodelist *argbackq; /* list of back quote expressions */ 90dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct ifsregion ifsfirst; /* first struct in list of ifs regions */ 91dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct ifsregion *ifslastp; /* last struct in list */ 92dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct arglist exparg; /* holds expanded arg list */ 93dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 94dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void argstr(char *, int); 95dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC char *exptilde(char *, int); 96dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void expbackq(union node *, int, int); 97dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC int subevalvar(char *, char *, int, int, int, int); 98dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC char *evalvar(char *, int); 99dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC int varisset(char *, int); 100dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void varvalue(char *, int, int, int); 101dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void recordregion(int, int, int); 102dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void removerecordregions(int); 103dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void ifsbreakup(char *, struct arglist *); 104dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void ifsfree(void); 105dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void expandmeta(struct strlist *, int); 106dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void expmeta(char *, char *); 107dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void addfname(char *); 108dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC struct strlist *expsort(struct strlist *); 109dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC struct strlist *msort(struct strlist *, int); 110dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC int pmatch(char *, char *, int); 111dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC char *cvtnum(int, char *); 112dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 113dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 114dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Expand shell variables and backquotes inside a here document. 115dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 116dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 117dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectvoid 118dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectexpandhere(union node *arg, int fd) 119dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 120dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project herefd = fd; 121dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project expandarg(arg, (struct arglist *)NULL, 0); 122dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project xwrite(fd, stackblock(), expdest - stackblock()); 123dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 124dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 125dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 126dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 127dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Perform variable substitution and command substitution on an argument, 128dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * placing the resulting list of arguments in arglist. If EXP_FULL is true, 129dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * perform splitting and file name expansion. When arglist is NULL, perform 130dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * here document expansion. 131dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 132dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 133dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectvoid 134dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectexpandarg(union node *arg, struct arglist *arglist, int flag) 135dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 136dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct strlist *sp; 137dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *p; 138dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 139dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project argbackq = arg->narg.backquote; 140dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STARTSTACKSTR(expdest); 141dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsfirst.next = NULL; 142dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp = NULL; 143dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project argstr(arg->narg.text, flag); 144dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (arglist == NULL) { 145dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return; /* here document expanded */ 146dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 147dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC('\0', expdest); 148dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = grabstackstr(expdest); 149dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project exparg.lastp = &exparg.list; 150dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 151dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * TODO - EXP_REDIR 152dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 153dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (flag & EXP_FULL) { 154dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsbreakup(p, &exparg); 155dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *exparg.lastp = NULL; 156dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project exparg.lastp = &exparg.list; 157dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project expandmeta(exparg.list, flag); 158dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 159dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (flag & EXP_REDIR) /*XXX - for now, just remove escapes */ 160dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project rmescapes(p); 161dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sp = (struct strlist *)stalloc(sizeof (struct strlist)); 162dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sp->text = p; 163dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *exparg.lastp = sp; 164dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project exparg.lastp = &sp->next; 165dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 166dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsfree(); 167dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *exparg.lastp = NULL; 168dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (exparg.list) { 169dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *arglist->lastp = exparg.list; 170dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project arglist->lastp = exparg.lastp; 171dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 172dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 173dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 174dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 175dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 176dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 177dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Perform variable and command substitution. 178dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * If EXP_FULL is set, output CTLESC characters to allow for further processing. 179dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Otherwise treat $@ like $* since no splitting will be performed. 180dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 181dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 182dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void 183dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectargstr(char *p, int flag) 184dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 185dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char c; 186dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int quotes = flag & (EXP_FULL | EXP_CASE); /* do CTLESC */ 187dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int firsteq = 1; 188dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *ifs = 0; 189dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int ifs_split = EXP_IFS_SPLIT; 190dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 191dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (flag & EXP_IFS_SPLIT) 192dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifs = ifsset() ? ifsval() : " \t\n"; 193dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 194dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == '~' && (flag & (EXP_TILDE | EXP_VARTILDE))) 195dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = exptilde(p, flag); 196dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (;;) { 197dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project switch (c = *p++) { 198dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case '\0': 199dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case CTLENDVAR: /* end of expanding yyy in ${xxx-yyy} */ 200dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return; 201dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case CTLQUOTEMARK: 202dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* "$@" syntax adherence hack */ 203dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (p[0] == CTLVAR && p[2] == '@' && p[3] == '=') 204dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 205dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((flag & EXP_FULL) != 0) 206dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(c, expdest); 207dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifs_split = 0; 208dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 209dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case CTLQUOTEEND: 210dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifs_split = EXP_IFS_SPLIT; 211dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 212dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case CTLESC: 213dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (quotes) 214dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(c, expdest); 215dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project c = *p++; 216dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(c, expdest); 217dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 218dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case CTLVAR: 219dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = evalvar(p, (flag & ~EXP_IFS_SPLIT) | (flag & ifs_split)); 220dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 221dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case CTLBACKQ: 222dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case CTLBACKQ|CTLQUOTE: 223dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project expbackq(argbackq->n, c & CTLQUOTE, flag); 224dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project argbackq = argbackq->next; 225dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 226dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case CTLENDARI: 227dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project expari(flag); 228dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 229dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case ':': 230dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case '=': 231dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 232dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * sort of a hack - expand tildes in variable 233dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * assignments (after the first '=' and after ':'s). 234dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 235dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(c, expdest); 236dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (flag & EXP_VARTILDE && *p == '~') { 237dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (c == '=') { 238dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (firsteq) 239dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project firsteq = 0; 240dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else 241dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 242dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 243dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = exptilde(p, flag); 244dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 245dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 246dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project default: 247dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(c, expdest); 248dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (flag & EXP_IFS_SPLIT & ifs_split && strchr(ifs, c) != NULL) { 249dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* We need to get the output split here... */ 250dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project recordregion(expdest - stackblock() - 1, 251dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project expdest - stackblock(), 0); 252dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 253dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 254dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 255dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 256dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 257dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 258dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC char * 259dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectexptilde(char *p, int flag) 260dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 261dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char c, *startp = p; 262dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *home; 263dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int quotes = flag & (EXP_FULL | EXP_CASE); 264dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 265dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while ((c = *p) != '\0') { 266dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project switch(c) { 267dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case CTLESC: 268dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return (startp); 269dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case CTLQUOTEMARK: 270dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return (startp); 271dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case ':': 272dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (flag & EXP_VARTILDE) 273dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto done; 274dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 275dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case '/': 276dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto done; 277dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 278dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 279dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 280dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectdone: 281dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *p = '\0'; 282dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*(startp+1) == '\0') { 283dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((home = lookupvar("HOME")) == NULL) 284dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto lose; 285dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else 286dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto lose; 287dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*home == '\0') 288dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto lose; 289dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *p = c; 290dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while ((c = *home++) != '\0') { 291dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (quotes && SQSYNTAX[(int)c] == CCTL) 292dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(CTLESC, expdest); 293dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(c, expdest); 294dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 295dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return (p); 296dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectlose: 297dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *p = c; 298dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return (startp); 299dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 300dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 301dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 302dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void 303dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectremoverecordregions(int endoff) 304dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 305dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (ifslastp == NULL) 306dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return; 307dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 308dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (ifsfirst.endoff > endoff) { 309dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (ifsfirst.next != NULL) { 310dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct ifsregion *ifsp; 311dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project INTOFF; 312dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsp = ifsfirst.next->next; 313dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ckfree(ifsfirst.next); 314dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsfirst.next = ifsp; 315dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project INTON; 316dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 317dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (ifsfirst.begoff > endoff) 318dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp = NULL; 319dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else { 320dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp = &ifsfirst; 321dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsfirst.endoff = endoff; 322dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 323dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return; 324dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 325dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 326dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp = &ifsfirst; 327dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (ifslastp->next && ifslastp->next->begoff < endoff) 328dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp=ifslastp->next; 329dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (ifslastp->next != NULL) { 330dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct ifsregion *ifsp; 331dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project INTOFF; 332dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsp = ifslastp->next->next; 333dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ckfree(ifslastp->next); 334dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp->next = ifsp; 335dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project INTON; 336dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 337dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (ifslastp->endoff > endoff) 338dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp->endoff = endoff; 339dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 340dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 341dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 342dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 343dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Expand arithmetic expression. Backup to start of expression, 344dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * evaluate, place result in (backed up) result, adjust string position. 345dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 346dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectvoid 347dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectexpari(int flag) 348dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 349dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *p, *start; 350dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int result; 351dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int begoff; 352dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int quotes = flag & (EXP_FULL | EXP_CASE); 353dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int quoted; 354dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 355dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* ifsfree(); */ 356dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 357dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 358dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * This routine is slightly over-complicated for 359dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * efficiency. First we make sure there is 360dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * enough space for the result, which may be bigger 361dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * than the expression if we add exponentation. Next we 362dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * scan backwards looking for the start of arithmetic. If the 363dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * next previous character is a CTLESC character, then we 364dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * have to rescan starting from the beginning since CTLESC 365dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * characters have to be processed left to right. 366dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 367dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#if INT_MAX / 1000000000 >= 10 || INT_MIN / 1000000000 <= -10 368dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#error "integers with more than 10 digits are not supported" 369dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#endif 370dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project CHECKSTRSPACE(12 - 2, expdest); 371dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project USTPUTC('\0', expdest); 372dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project start = stackblock(); 373dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = expdest - 1; 374dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*p != CTLARI && p >= start) 375dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project --p; 376dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p != CTLARI) 377dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project error("missing CTLARI (shouldn't happen)"); 378dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (p > start && *(p-1) == CTLESC) 379dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (p = start; *p != CTLARI; p++) 380dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == CTLESC) 381dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 382dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 383dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (p[1] == '"') 384dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project quoted=1; 385dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else 386dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project quoted=0; 387dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project begoff = p - start; 388dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project removerecordregions(begoff); 389dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (quotes) 390dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project rmescapes(p+2); 391dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project result = arith(p+2); 392dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fmtstr(p, 12, "%d", result); 393dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 394dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*p++) 395dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ; 396dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 397dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (quoted == 0) 398dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project recordregion(begoff, p - 1 - start, 0); 399dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project result = expdest - p + 1; 400dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STADJUST(-result, expdest); 401dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 402dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 403dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 404dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 405dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Expand stuff in backwards quotes. 406dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 407dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 408dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void 409dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectexpbackq(union node *cmd, int quoted, int flag) 410dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 411dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct backcmd in; 412dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int i; 413dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char buf[128]; 414dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *p; 415dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *dest = expdest; 416dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct ifsregion saveifs, *savelastp; 417dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct nodelist *saveargbackq; 418dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char lastc; 419dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int startloc = dest - stackblock(); 420dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char const *syntax = quoted? DQSYNTAX : BASESYNTAX; 421dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int saveherefd; 422dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int quotes = flag & (EXP_FULL | EXP_CASE); 423dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 424dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project INTOFF; 425dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project saveifs = ifsfirst; 426dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project savelastp = ifslastp; 427dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project saveargbackq = argbackq; 428dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project saveherefd = herefd; 429dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project herefd = -1; 430dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = grabstackstr(dest); 431dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project evalbackcmd(cmd, &in); 432dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ungrabstackstr(p, dest); 433dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsfirst = saveifs; 434dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp = savelastp; 435dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project argbackq = saveargbackq; 436dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project herefd = saveherefd; 437dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 438dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = in.buf; 439dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lastc = '\0'; 440dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (;;) { 441dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (--in.nleft < 0) { 442dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (in.fd < 0) 443dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 444dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while ((i = read(in.fd, buf, sizeof buf)) < 0 && errno == EINTR); 445dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project TRACE(("expbackq: read returns %d\n", i)); 446dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (i <= 0) 447dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 448dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = buf; 449dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project in.nleft = i - 1; 450dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 451dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lastc = *p++; 452dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (lastc != '\0') { 453dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (quotes && syntax[(int)lastc] == CCTL) 454dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(CTLESC, dest); 455dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(lastc, dest); 456dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 457dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 458dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 459dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Eat all trailing newlines */ 460dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = stackblock() + startloc; 461dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (dest > p && dest[-1] == '\n') 462dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STUNPUTC(dest); 463dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 464dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (in.fd >= 0) 465dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project close(in.fd); 466dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (in.buf) 467dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ckfree(in.buf); 468dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (in.jp) 469dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project back_exitstatus = waitforjob(in.jp); 470dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (quoted == 0) 471dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project recordregion(startloc, dest - stackblock(), 0); 472dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project TRACE(("evalbackq: size=%d: \"%.*s\"\n", 473dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (dest - stackblock()) - startloc, 474dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (dest - stackblock()) - startloc, 475dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project stackblock() + startloc)); 476dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project expdest = dest; 477dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project INTON; 478dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 479dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 480dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 481dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 482dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC int 483dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectsubevalvar(char *p, char *str, int strloc, int subtype, int startloc, int varflags) 484dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 485dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *startp; 486dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *loc = NULL; 487dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *q; 488dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int c = 0; 489dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int saveherefd = herefd; 490dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct nodelist *saveargbackq = argbackq; 491dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int amount; 492dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 493dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project herefd = -1; 494dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project argstr(p, 0); 495dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STACKSTRNUL(expdest); 496dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project herefd = saveherefd; 497dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project argbackq = saveargbackq; 498dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project startp = stackblock() + startloc; 499dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (str == NULL) 500dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project str = stackblock() + strloc; 501dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 502dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project switch (subtype) { 503dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSASSIGN: 504dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project setvar(str, startp, 0); 505dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project amount = startp - expdest; 506dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STADJUST(amount, expdest); 507dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project varflags &= ~VSNUL; 508dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (c != 0) 509dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *loc = c; 510dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 1; 511dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 512dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSQUESTION: 513dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p != CTLENDVAR) { 514dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project outfmt(&errout, "%s\n", startp); 515dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project error((char *)NULL); 516dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 517dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project error("%.*s: parameter %snot set", p - str - 1, 518dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project str, (varflags & VSNUL) ? "null or " 519dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project : nullstr); 520dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* NOTREACHED */ 521dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 522dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSTRIMLEFT: 523dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (loc = startp; loc < str; loc++) { 524dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project c = *loc; 525dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *loc = '\0'; 526dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (patmatch(str, startp, varflags & VSQUOTE)) 527dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto recordleft; 528dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *loc = c; 529dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((varflags & VSQUOTE) && *loc == CTLESC) 530dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project loc++; 531dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 532dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 533dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 534dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSTRIMLEFTMAX: 535dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (loc = str - 1; loc >= startp;) { 536dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project c = *loc; 537dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *loc = '\0'; 538dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (patmatch(str, startp, varflags & VSQUOTE)) 539dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto recordleft; 540dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *loc = c; 541dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project loc--; 542dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((varflags & VSQUOTE) && loc > startp && 543dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *(loc - 1) == CTLESC) { 544dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (q = startp; q < loc; q++) 545dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*q == CTLESC) 546dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q++; 547dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (q > loc) 548dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project loc--; 549dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 550dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 551dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 552dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 553dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSTRIMRIGHT: 554dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (loc = str - 1; loc >= startp;) { 555dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (patmatch(str, loc, varflags & VSQUOTE)) 556dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto recordright; 557dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project loc--; 558dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((varflags & VSQUOTE) && loc > startp && 559dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *(loc - 1) == CTLESC) { 560dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (q = startp; q < loc; q++) 561dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*q == CTLESC) 562dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q++; 563dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (q > loc) 564dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project loc--; 565dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 566dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 567dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 568dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 569dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSTRIMRIGHTMAX: 570dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (loc = startp; loc < str - 1; loc++) { 571dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (patmatch(str, loc, varflags & VSQUOTE)) 572dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto recordright; 573dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((varflags & VSQUOTE) && *loc == CTLESC) 574dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project loc++; 575dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 576dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 577dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 578dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project default: 579dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project abort(); 580dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 581dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 582dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectrecordleft: 583dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *loc = c; 584dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project amount = ((str - 1) - (loc - startp)) - expdest; 585dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STADJUST(amount, expdest); 586dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (loc != str - 1) 587dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *startp++ = *loc++; 588dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 1; 589dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 590dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectrecordright: 591dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project amount = loc - expdest; 592dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STADJUST(amount, expdest); 593dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC('\0', expdest); 594dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STADJUST(-1, expdest); 595dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 1; 596dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 597dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 598dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 599dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 600dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Expand a variable, and return a pointer to the next character in the 601dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * input string. 602dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 603dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 604dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC char * 605dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectevalvar(char *p, int flag) 606dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 607dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int subtype; 608dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int varflags; 609dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *var; 610dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *val; 611dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int patloc; 612dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int c; 613dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int set; 614dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int special; 615dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int startloc; 616dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int varlen; 617dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int apply_ifs; 618dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int quotes = flag & (EXP_FULL | EXP_CASE); 619dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 620dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project varflags = (unsigned char)*p++; 621dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project subtype = varflags & VSTYPE; 622dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project var = p; 623dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project special = !is_name(*p); 624dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = strchr(p, '=') + 1; 625dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 626dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectagain: /* jump here after setting a variable with ${var=text} */ 627dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (special) { 628dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project set = varisset(var, varflags & VSNUL); 629dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project val = NULL; 630dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 631dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project val = lookupvar(var); 632dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (val == NULL || ((varflags & VSNUL) && val[0] == '\0')) { 633dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project val = NULL; 634dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project set = 0; 635dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else 636dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project set = 1; 637dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 638dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 639dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project varlen = 0; 640dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project startloc = expdest - stackblock(); 641dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 642dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!set && uflag) { 643dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project switch (subtype) { 644dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSNORMAL: 645dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSTRIMLEFT: 646dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSTRIMLEFTMAX: 647dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSTRIMRIGHT: 648dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSTRIMRIGHTMAX: 649dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSLENGTH: 650dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project error("%.*s: parameter not set", p - var - 1, var); 651dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* NOTREACHED */ 652dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 653dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 654dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 655dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (set && subtype != VSPLUS) { 656dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* insert the value of the variable */ 657dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (special) { 658dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project varvalue(var, varflags & VSQUOTE, subtype, flag); 659dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (subtype == VSLENGTH) { 660dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project varlen = expdest - stackblock() - startloc; 661dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STADJUST(-varlen, expdest); 662dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 663dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 664dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char const *syntax = (varflags & VSQUOTE) ? DQSYNTAX 665dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project : BASESYNTAX; 666dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 667dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (subtype == VSLENGTH) { 668dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (;*val; val++) 669dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project varlen++; 670dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 671dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*val) { 672dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (quotes && syntax[(int)*val] == CCTL) 673dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(CTLESC, expdest); 674dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(*val++, expdest); 675dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 676dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 677dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 678dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 679dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 680dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 681dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 682dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project apply_ifs = ((varflags & VSQUOTE) == 0 || 683dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (*var == '@' && shellparam.nparam != 1)); 684dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 685dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project switch (subtype) { 686dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSLENGTH: 687dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project expdest = cvtnum(varlen, expdest); 688dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 689dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 690dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSNORMAL: 691dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 692dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 693dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSPLUS: 694dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project set = !set; 695dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* FALLTHROUGH */ 696dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSMINUS: 697dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!set) { 698dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project argstr(p, flag | (apply_ifs ? EXP_IFS_SPLIT : 0)); 699dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 700dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * ${x-a b c} doesn't get split, but removing the 701dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 'apply_ifs = 0' apparantly breaks ${1+"$@"}.. 702dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * ${x-'a b' c} should generate 2 args. 703dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 704dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* We should have marked stuff already */ 705dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project apply_ifs = 0; 706dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 707dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 708dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 709dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSTRIMLEFT: 710dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSTRIMLEFTMAX: 711dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSTRIMRIGHT: 712dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSTRIMRIGHTMAX: 713dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!set) 714dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 715dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 716dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Terminate the string and start recording the pattern 717dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * right after it 718dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 719dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC('\0', expdest); 720dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project patloc = expdest - stackblock(); 721dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (subevalvar(p, NULL, patloc, subtype, 722dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project startloc, varflags) == 0) { 723dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int amount = (expdest - stackblock() - patloc) + 1; 724dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STADJUST(-amount, expdest); 725dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 726dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Remove any recorded regions beyond start of variable */ 727dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project removerecordregions(startloc); 728dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project apply_ifs = 1; 729dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 730dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 731dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSASSIGN: 732dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case VSQUESTION: 733dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (set) 734dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 735dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (subevalvar(p, var, 0, subtype, startloc, varflags)) { 736dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project varflags &= ~VSNUL; 737dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 738dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Remove any recorded regions beyond 739dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * start of variable 740dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 741dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project removerecordregions(startloc); 742dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto again; 743dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 744dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project apply_ifs = 0; 745dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 746dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 747dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project default: 748dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project abort(); 749dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 750dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 751dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (apply_ifs) 752dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project recordregion(startloc, expdest - stackblock(), 753dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project varflags & VSQUOTE); 754dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 755dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (subtype != VSNORMAL) { /* skip to end of alternative */ 756dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int nesting = 1; 757dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (;;) { 758dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((c = *p++) == CTLESC) 759dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 760dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else if (c == CTLBACKQ || c == (CTLBACKQ|CTLQUOTE)) { 761dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (set) 762dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project argbackq = argbackq->next; 763dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (c == CTLVAR) { 764dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((*p++ & VSTYPE) != VSNORMAL) 765dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project nesting++; 766dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (c == CTLENDVAR) { 767dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (--nesting == 0) 768dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 769dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 770dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 771dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 772dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return p; 773dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 774dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 775dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 776dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 777dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 778dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Test whether a specialized variable is set. 779dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 780dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 781dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC int 782dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectvarisset(char *name, int nulok) 783dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 784dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*name == '!') 785dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return backgndpid != -1; 786dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else if (*name == '@' || *name == '*') { 787dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*shellparam.p == NULL) 788dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 789dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 790dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (nulok) { 791dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char **av; 792dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 793dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (av = shellparam.p; *av; av++) 794dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (**av != '\0') 795dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 1; 796dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 797dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 798dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (is_digit(*name)) { 799dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *ap; 800dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int num = atoi(name); 801dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 802dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (num > shellparam.nparam) 803dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 804dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 805dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (num == 0) 806dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ap = arg0; 807dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else 808dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ap = shellparam.p[num - 1]; 809dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 810dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (nulok && (ap == NULL || *ap == '\0')) 811dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 812dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 813dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 1; 814dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 815dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 816dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 817dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 818dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 819dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Add the value of a specialized variable to the stack string. 820dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 821dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 822dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void 823dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectvarvalue(char *name, int quoted, int subtype, int flag) 824dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 825dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int num; 826dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *p; 827dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int i; 828dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char sep; 829dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char **ap; 830dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char const *syntax; 831dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 832dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define STRTODEST(p) \ 833dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project do {\ 834dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (flag & (EXP_FULL | EXP_CASE) && subtype != VSLENGTH) { \ 835dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project syntax = quoted? DQSYNTAX : BASESYNTAX; \ 836dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*p) { \ 837dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (syntax[(int)*p] == CCTL) \ 838dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(CTLESC, expdest); \ 839dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(*p++, expdest); \ 840dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } \ 841dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else \ 842dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*p) \ 843dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(*p++, expdest); \ 844dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } while (0) 845dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 846dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 847dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project switch (*name) { 848dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case '$': 849dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project num = rootpid; 850dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto numvar; 851dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case '?': 852dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project num = exitstatus; 853dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto numvar; 854dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case '#': 855dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project num = shellparam.nparam; 856dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto numvar; 857dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case '!': 858dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project num = backgndpid; 859dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectnumvar: 860dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project expdest = cvtnum(num, expdest); 861dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 862dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case '-': 863dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (i = 0; optlist[i].name; i++) { 864dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (optlist[i].val) 865dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(optlist[i].letter, expdest); 866dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 867dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 868dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case '@': 869dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (flag & EXP_FULL && quoted) { 870dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (ap = shellparam.p ; (p = *ap++) != NULL ; ) { 871dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STRTODEST(p); 872dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*ap) 873dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC('\0', expdest); 874dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 875dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 876dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 877dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* fall through */ 878dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case '*': 879dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (ifsset() != 0) 880dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sep = ifsval()[0]; 881dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else 882dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sep = ' '; 883dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (ap = shellparam.p ; (p = *ap++) != NULL ; ) { 884dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STRTODEST(p); 885dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*ap && sep) 886dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(sep, expdest); 887dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 888dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 889dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case '0': 890dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = arg0; 891dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STRTODEST(p); 892dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 893dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project default: 894dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (is_digit(*name)) { 895dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project num = atoi(name); 896dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (num > 0 && num <= shellparam.nparam) { 897dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = shellparam.p[num - 1]; 898dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STRTODEST(p); 899dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 900dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 901dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 902dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 903dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 904dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 905dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 906dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 907dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 908dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Record the fact that we have to scan this region of the 909dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * string for IFS characters. 910dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 911dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 912dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void 913dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectrecordregion(int start, int end, int inquotes) 914dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 915dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct ifsregion *ifsp; 916dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 917dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (ifslastp == NULL) { 918dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsp = &ifsfirst; 919dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 920dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (ifslastp->endoff == start 921dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project && ifslastp->inquotes == inquotes) { 922dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* extend previous area */ 923dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp->endoff = end; 924dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return; 925dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 926dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsp = (struct ifsregion *)ckmalloc(sizeof (struct ifsregion)); 927dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp->next = ifsp; 928dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 929dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp = ifsp; 930dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp->next = NULL; 931dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp->begoff = start; 932dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp->endoff = end; 933dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp->inquotes = inquotes; 934dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 935dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 936dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 937dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 938dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 939dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Break the argument string into pieces based upon IFS and add the 940dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * strings to the argument list. The regions of the string to be 941dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * searched for IFS characters have been stored by recordregion. 942dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 943dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void 944dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectifsbreakup(char *string, struct arglist *arglist) 945dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 946dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct ifsregion *ifsp; 947dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct strlist *sp; 948dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *start; 949dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *p; 950dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *q; 951dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *ifs; 952dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *ifsspc; 953dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int inquotes; 954dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 955dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project start = string; 956dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsspc = NULL; 957dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project inquotes = 0; 958dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 959dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (ifslastp == NULL) { 960dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Return entire argument, IFS doesn't apply to any of it */ 961dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sp = (struct strlist *)stalloc(sizeof *sp); 962dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sp->text = start; 963dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *arglist->lastp = sp; 964dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project arglist->lastp = &sp->next; 965dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return; 966dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 967dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 968dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifs = ifsset() ? ifsval() : " \t\n"; 969dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 970dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (ifsp = &ifsfirst; ifsp != NULL; ifsp = ifsp->next) { 971dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = string + ifsp->begoff; 972dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project inquotes = ifsp->inquotes; 973dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsspc = NULL; 974dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (p < string + ifsp->endoff) { 975dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q = p; 976dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == CTLESC) 977dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 978dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (inquotes) { 979dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Only NULs (probably from "$@") end args */ 980dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p != 0) { 981dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 982dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project continue; 983dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 984dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 985dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!strchr(ifs, *p)) { 986dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 987dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project continue; 988dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 989dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsspc = strchr(" \t\n", *p); 990dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 991dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Ignore IFS whitespace at start */ 992dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (q == start && ifsspc != NULL) { 993dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 994dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project start = p; 995dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project continue; 996dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 997dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 998dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 999dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Save this argument... */ 1000dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *q = '\0'; 1001dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sp = (struct strlist *)stalloc(sizeof *sp); 1002dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sp->text = start; 1003dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *arglist->lastp = sp; 1004dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project arglist->lastp = &sp->next; 1005dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1006dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1007dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (ifsspc != NULL) { 1008dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Ignore further trailing IFS whitespace */ 1009dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (; p < string + ifsp->endoff; p++) { 1010dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q = p; 1011dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == CTLESC) 1012dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1013dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (strchr(ifs, *p) == NULL) { 1014dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = q; 1015dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1016dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1017dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (strchr(" \t\n", *p) == NULL) { 1018dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1019dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1020dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1021dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1022dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1023dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project start = p; 1024dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1025dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1026dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1027dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 1028dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Save anything left as an argument. 1029dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Traditionally we have treated 'IFS=':'; set -- x$IFS' as 1030dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * generating 2 arguments, the second of which is empty. 1031dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Some recent clarification of the Posix spec say that it 1032dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * should only generate one.... 1033dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 1034dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*start /* || (!ifsspc && start > string) */) { 1035dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sp = (struct strlist *)stalloc(sizeof *sp); 1036dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sp->text = start; 1037dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *arglist->lastp = sp; 1038dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project arglist->lastp = &sp->next; 1039dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1040dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1041dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1042dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void 1043dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectifsfree(void) 1044dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1045dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (ifsfirst.next != NULL) { 1046dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct ifsregion *ifsp; 1047dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project INTOFF; 1048dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsp = ifsfirst.next->next; 1049dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ckfree(ifsfirst.next); 1050dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsfirst.next = ifsp; 1051dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project INTON; 1052dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1053dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp = NULL; 1054dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifsfirst.next = NULL; 1055dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1056dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1057dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1058dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1059dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1060dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Expand shell metacharacters. At this point, the only control characters 1061dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * should be escapes. The results are stored in the list exparg. 1062dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 1063dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1064dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectchar *expdir; 1065dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1066dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1067dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void 1068dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectexpandmeta(struct strlist *str, int flag) 1069dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1070dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *p; 1071dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct strlist **savelastp; 1072dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct strlist *sp; 1073dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char c; 1074dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* TODO - EXP_REDIR */ 1075dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1076dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (str) { 1077dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fflag) 1078dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto nometa; 1079dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = str->text; 1080dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (;;) { /* fast check for meta chars */ 1081dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((c = *p++) == '\0') 1082dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto nometa; 1083dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (c == '*' || c == '?' || c == '[' || c == '!') 1084dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1085dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1086dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project savelastp = exparg.lastp; 1087dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project INTOFF; 1088dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (expdir == NULL) { 1089dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int i = strlen(str->text); 1090dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project expdir = ckmalloc(i < 2048 ? 2048 : i); /* XXX */ 1091dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1092dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1093dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project expmeta(expdir, str->text); 1094dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ckfree(expdir); 1095dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project expdir = NULL; 1096dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project INTON; 1097dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (exparg.lastp == savelastp) { 1098dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 1099dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * no matches 1100dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 1101dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectnometa: 1102dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *exparg.lastp = str; 1103dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project rmescapes(str->text); 1104dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project exparg.lastp = &str->next; 1105dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 1106dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *exparg.lastp = NULL; 1107dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *savelastp = sp = expsort(*savelastp); 1108dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (sp->next != NULL) 1109dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sp = sp->next; 1110dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project exparg.lastp = &sp->next; 1111dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1112dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project str = str->next; 1113dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1114dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1115dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1116dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1117dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1118dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Do metacharacter (i.e. *, ?, [...]) expansion. 1119dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 1120dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1121dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void 1122dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectexpmeta(char *enddir, char *name) 1123dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1124dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *p; 1125dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *cp; 1126dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *q; 1127dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *start; 1128dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *endname; 1129dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int metaflag; 1130dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct stat statb; 1131dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project DIR *dirp; 1132dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct dirent *dp; 1133dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int atend; 1134dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int matchdot; 1135dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1136dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project metaflag = 0; 1137dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project start = name; 1138dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (p = name ; ; p++) { 1139dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == '*' || *p == '?') 1140dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project metaflag = 1; 1141dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else if (*p == '[') { 1142dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q = p + 1; 1143dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*q == '!') 1144dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q++; 1145dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (;;) { 1146dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*q == CTLQUOTEMARK) 1147dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q++; 1148dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*q == CTLESC) 1149dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q++; 1150dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*q == '/' || *q == '\0') 1151dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1152dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*++q == ']') { 1153dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project metaflag = 1; 1154dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1155dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1156dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1157dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (*p == '!' && p[1] == '!' && (p == name || p[-1] == '/')) { 1158dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project metaflag = 1; 1159dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (*p == '\0') 1160dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1161dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else if (*p == CTLQUOTEMARK) 1162dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project continue; 1163dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else if (*p == CTLESC) 1164dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1165dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == '/') { 1166dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (metaflag) 1167dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1168dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project start = p + 1; 1169dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1170dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1171dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (metaflag == 0) { /* we've reached the end of the file name */ 1172dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (enddir != expdir) 1173dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project metaflag++; 1174dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (p = name ; ; p++) { 1175dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == CTLQUOTEMARK) 1176dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project continue; 1177dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == CTLESC) 1178dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1179dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *enddir++ = *p; 1180dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == '\0') 1181dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1182dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1183dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (metaflag == 0 || lstat(expdir, &statb) >= 0) 1184dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project addfname(expdir); 1185dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return; 1186dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1187dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project endname = p; 1188dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (start != name) { 1189dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = name; 1190dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (p < start) { 1191dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*p == CTLQUOTEMARK) 1192dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1193dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == CTLESC) 1194dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1195dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *enddir++ = *p++; 1196dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1197dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1198dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (enddir == expdir) { 1199dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cp = "."; 1200dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (enddir == expdir + 1 && *expdir == '/') { 1201dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cp = "/"; 1202dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 1203dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cp = expdir; 1204dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project enddir[-1] = '\0'; 1205dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1206dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((dirp = opendir(cp)) == NULL) 1207dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return; 1208dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (enddir != expdir) 1209dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project enddir[-1] = '/'; 1210dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*endname == 0) { 1211dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project atend = 1; 1212dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 1213dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project atend = 0; 1214dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *endname++ = '\0'; 1215dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1216dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project matchdot = 0; 1217dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = start; 1218dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*p == CTLQUOTEMARK) 1219dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1220dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == CTLESC) 1221dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1222dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == '.') 1223dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project matchdot++; 1224dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (! int_pending() && (dp = readdir(dirp)) != NULL) { 1225dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (dp->d_name[0] == '.' && ! matchdot) 1226dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project continue; 1227dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (patmatch(start, dp->d_name, 0)) { 1228dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (atend) { 1229dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project scopy(dp->d_name, enddir); 1230dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project addfname(expdir); 1231dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 1232dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (p = enddir, cp = dp->d_name; 1233dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (*p++ = *cp++) != '\0';) 1234dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project continue; 1235dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p[-1] = '/'; 1236dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project expmeta(p, endname); 1237dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1238dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1239dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1240dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project closedir(dirp); 1241dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (! atend) 1242dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project endname[-1] = '/'; 1243dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1244dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1245dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1246dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1247dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Add a file name to the list. 1248dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 1249dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1250dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC void 1251dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectaddfname(char *name) 1252dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1253dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *p; 1254dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct strlist *sp; 1255dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1256dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = stalloc(strlen(name) + 1); 1257dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project scopy(name, p); 1258dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sp = (struct strlist *)stalloc(sizeof *sp); 1259dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sp->text = p; 1260dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *exparg.lastp = sp; 1261dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project exparg.lastp = &sp->next; 1262dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1263dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1264dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1265dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1266dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Sort the results of file name expansion. It calculates the number of 1267dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * strings to sort and then calls msort (short for merge sort) to do the 1268dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * work. 1269dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 1270dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1271dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC struct strlist * 1272dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectexpsort(struct strlist *str) 1273dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1274dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int len; 1275dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct strlist *sp; 1276dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1277dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project len = 0; 1278dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (sp = str ; sp ; sp = sp->next) 1279dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project len++; 1280dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return msort(str, len); 1281dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1282dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1283dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1284dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC struct strlist * 1285dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectmsort(struct strlist *list, int len) 1286dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1287dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct strlist *p, *q = NULL; 1288dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct strlist **lpp; 1289dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int half; 1290dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int n; 1291dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1292dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (len <= 1) 1293dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return list; 1294dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project half = len >> 1; 1295dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = list; 1296dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (n = half ; --n >= 0 ; ) { 1297dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q = p; 1298dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = p->next; 1299dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1300dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q->next = NULL; /* terminate first half of list */ 1301dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q = msort(list, half); /* sort first half of list */ 1302dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = msort(p, len - half); /* sort second half */ 1303dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lpp = &list; 1304dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (;;) { 1305dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (strcmp(p->text, q->text) < 0) { 1306dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *lpp = p; 1307dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lpp = &p->next; 1308dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((p = *lpp) == NULL) { 1309dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *lpp = q; 1310dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1311dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1312dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 1313dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *lpp = q; 1314dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lpp = &q->next; 1315dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((q = *lpp) == NULL) { 1316dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *lpp = p; 1317dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1318dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1319dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1320dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1321dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return list; 1322dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1323dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1324dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1325dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1326dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1327dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Returns true if the pattern matches the string. 1328dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 1329dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1330dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectint 1331dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectpatmatch(char *pattern, char *string, int squoted) 1332dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1333dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#ifdef notdef 1334dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (pattern[0] == '!' && pattern[1] == '!') 1335dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 1 - pmatch(pattern + 2, string); 1336dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else 1337dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#endif 1338dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return pmatch(pattern, string, squoted); 1339dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1340dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1341dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1342dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC int 1343dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectpmatch(char *pattern, char *string, int squoted) 1344dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1345dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *p, *q; 1346dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char c; 1347dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1348dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = pattern; 1349dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q = string; 1350dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (;;) { 1351dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project switch (c = *p++) { 1352dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case '\0': 1353dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto breakloop; 1354dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case CTLESC: 1355dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (squoted && *q == CTLESC) 1356dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q++; 1357dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*q++ != *p++) 1358dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 1359dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1360dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case CTLQUOTEMARK: 1361dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project continue; 1362dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case '?': 1363dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (squoted && *q == CTLESC) 1364dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q++; 1365dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*q++ == '\0') 1366dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 1367dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1368dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case '*': 1369dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project c = *p; 1370dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (c == CTLQUOTEMARK || c == '*') 1371dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project c = *++p; 1372dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (c != CTLESC && c != CTLQUOTEMARK && 1373dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project c != '?' && c != '*' && c != '[') { 1374dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*q != c) { 1375dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (squoted && *q == CTLESC && 1376dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q[1] == c) 1377dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1378dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*q == '\0') 1379dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 1380dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (squoted && *q == CTLESC) 1381dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q++; 1382dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q++; 1383dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1384dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1385dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project do { 1386dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (pmatch(p, q, squoted)) 1387dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 1; 1388dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (squoted && *q == CTLESC) 1389dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q++; 1390dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } while (*q++ != '\0'); 1391dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 1392dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case '[': { 1393dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *endp; 1394dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int invert, found; 1395dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char chr; 1396dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1397dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project endp = p; 1398dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*endp == '!') 1399dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project endp++; 1400dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (;;) { 1401dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*endp == CTLQUOTEMARK) 1402dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project endp++; 1403dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*endp == '\0') 1404dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto dft; /* no matching ] */ 1405dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*endp == CTLESC) 1406dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project endp++; 1407dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*++endp == ']') 1408dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1409dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1410dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project invert = 0; 1411dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == '!') { 1412dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project invert++; 1413dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1414dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1415dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project found = 0; 1416dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project chr = *q++; 1417dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (squoted && chr == CTLESC) 1418dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project chr = *q++; 1419dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (chr == '\0') 1420dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 1421dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project c = *p++; 1422dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project do { 1423dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (c == CTLQUOTEMARK) 1424dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project continue; 1425dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (c == CTLESC) 1426dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project c = *p++; 1427dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == '-' && p[1] != ']') { 1428dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1429dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*p == CTLQUOTEMARK) 1430dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1431dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == CTLESC) 1432dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1433dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (chr >= c && chr <= *p) 1434dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project found = 1; 1435dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1436dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 1437dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (chr == c) 1438dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project found = 1; 1439dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1440dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } while ((c = *p++) != ']'); 1441dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (found == invert) 1442dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 1443dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1444dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1445dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectdft: default: 1446dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (squoted && *q == CTLESC) 1447dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q++; 1448dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*q++ != c) 1449dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 1450dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1451dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1452dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1453dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectbreakloop: 1454dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*q != '\0') 1455dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 1456dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 1; 1457dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1458dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1459dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1460dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1461dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1462dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Remove any CTLESC characters from a string. 1463dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 1464dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1465dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectvoid 1466dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectrmescapes(char *str) 1467dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1468dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *p, *q; 1469dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1470dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = str; 1471dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*p != CTLESC && *p != CTLQUOTEMARK) { 1472dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p++ == '\0') 1473dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return; 1474dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1475dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project q = p; 1476dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*p) { 1477dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == CTLQUOTEMARK) { 1478dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1479dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project continue; 1480dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1481dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == CTLESC) 1482dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p++; 1483dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *q++ = *p++; 1484dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1485dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *q = '\0'; 1486dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1487dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1488dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1489dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1490dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1491dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * See if a pattern matches in a case statement. 1492dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 1493dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1494dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectint 1495dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectcasematch(union node *pattern, char *val) 1496dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1497dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct stackmark smark; 1498dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int result; 1499dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *p; 1500dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1501dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project setstackmark(&smark); 1502dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project argbackq = pattern->narg.backquote; 1503dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STARTSTACKSTR(expdest); 1504dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ifslastp = NULL; 1505dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project argstr(pattern->narg.text, EXP_TILDE | EXP_CASE); 1506dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC('\0', expdest); 1507dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = grabstackstr(expdest); 1508dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project result = patmatch(p, val, 0); 1509dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project popstackmark(&smark); 1510dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return result; 1511dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1512dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1513dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1514dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Our own itoa(). 1515dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 1516dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1517dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source ProjectSTATIC char * 1518dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectcvtnum(int num, char *buf) 1519dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1520dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char temp[32]; 1521dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int neg = num < 0; 1522dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *p = temp + 31; 1523dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1524dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project temp[31] = '\0'; 1525dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1526dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project do { 1527dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *--p = num % 10 + '0'; 1528dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } while ((num /= 10) != 0); 1529dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1530dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (neg) 1531dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *--p = '-'; 1532dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1533dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*p) 1534dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project STPUTC(*p++, buf); 1535dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return buf; 1536dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1537dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1538dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1539dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Do most of the work for wordexp(3). 1540dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 1541dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1542dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectint 1543dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectwordexpcmd(int argc, char **argv) 1544dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1545dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project size_t len; 1546dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int i; 1547dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1548dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project out1fmt("%d", argc - 1); 1549dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project out1c('\0'); 1550dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (i = 1, len = 0; i < argc; i++) 1551dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project len += strlen(argv[i]); 1552dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project out1fmt("%zd", len); 1553dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project out1c('\0'); 1554dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (i = 1; i < argc; i++) { 1555dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project out1str(argv[i]); 1556dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project out1c('\0'); 1557dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1558dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return (0); 1559dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1560