1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright (c) 2001 by Sun Microsystems, Inc. 24*7c478bd9Sstevel@tonic-gate * All rights reserved. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28*7c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 29*7c478bd9Sstevel@tonic-gate 30*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*7c478bd9Sstevel@tonic-gate /* 32*7c478bd9Sstevel@tonic-gate * UNIX shell 33*7c478bd9Sstevel@tonic-gate */ 34*7c478bd9Sstevel@tonic-gate 35*7c478bd9Sstevel@tonic-gate #include <setjmp.h> 36*7c478bd9Sstevel@tonic-gate #include "mode.h" 37*7c478bd9Sstevel@tonic-gate #include "name.h" 38*7c478bd9Sstevel@tonic-gate #include <sys/param.h> 39*7c478bd9Sstevel@tonic-gate #ifndef NOFILE 40*7c478bd9Sstevel@tonic-gate #define NOFILE 20 41*7c478bd9Sstevel@tonic-gate #endif 42*7c478bd9Sstevel@tonic-gate /* temp files and io */ 43*7c478bd9Sstevel@tonic-gate 44*7c478bd9Sstevel@tonic-gate int output = 2; 45*7c478bd9Sstevel@tonic-gate int ioset; 46*7c478bd9Sstevel@tonic-gate struct ionod *iotemp; /* files to be deleted sometime */ 47*7c478bd9Sstevel@tonic-gate struct ionod *fiotemp; /* function files to be deleted sometime */ 48*7c478bd9Sstevel@tonic-gate struct ionod *iopend; /* documents waiting to be read at NL */ 49*7c478bd9Sstevel@tonic-gate struct fdsave fdmap[NOFILE]; 50*7c478bd9Sstevel@tonic-gate 51*7c478bd9Sstevel@tonic-gate /* substitution */ 52*7c478bd9Sstevel@tonic-gate int dolc; 53*7c478bd9Sstevel@tonic-gate unsigned char **dolv; 54*7c478bd9Sstevel@tonic-gate struct dolnod *argfor; 55*7c478bd9Sstevel@tonic-gate struct argnod *gchain; 56*7c478bd9Sstevel@tonic-gate 57*7c478bd9Sstevel@tonic-gate 58*7c478bd9Sstevel@tonic-gate /* name tree and words */ 59*7c478bd9Sstevel@tonic-gate int wdval; 60*7c478bd9Sstevel@tonic-gate int wdnum; 61*7c478bd9Sstevel@tonic-gate int fndef; 62*7c478bd9Sstevel@tonic-gate int nohash; 63*7c478bd9Sstevel@tonic-gate struct argnod *wdarg; 64*7c478bd9Sstevel@tonic-gate int wdset; 65*7c478bd9Sstevel@tonic-gate BOOL reserv; 66*7c478bd9Sstevel@tonic-gate 67*7c478bd9Sstevel@tonic-gate /* special names */ 68*7c478bd9Sstevel@tonic-gate unsigned char *pcsadr; 69*7c478bd9Sstevel@tonic-gate unsigned char *pidadr; 70*7c478bd9Sstevel@tonic-gate unsigned char *cmdadr; 71*7c478bd9Sstevel@tonic-gate 72*7c478bd9Sstevel@tonic-gate /* transput */ 73*7c478bd9Sstevel@tonic-gate unsigned char *tmpname; 74*7c478bd9Sstevel@tonic-gate int serial; 75*7c478bd9Sstevel@tonic-gate unsigned peekc; 76*7c478bd9Sstevel@tonic-gate unsigned peekn; 77*7c478bd9Sstevel@tonic-gate unsigned char *comdiv; 78*7c478bd9Sstevel@tonic-gate long flags; 79*7c478bd9Sstevel@tonic-gate int rwait; /* flags read waiting */ 80*7c478bd9Sstevel@tonic-gate 81*7c478bd9Sstevel@tonic-gate /* error exits from various parts of shell */ 82*7c478bd9Sstevel@tonic-gate jmp_buf subshell; 83*7c478bd9Sstevel@tonic-gate jmp_buf errshell; 84*7c478bd9Sstevel@tonic-gate 85*7c478bd9Sstevel@tonic-gate /* fault handling */ 86*7c478bd9Sstevel@tonic-gate BOOL trapnote; 87*7c478bd9Sstevel@tonic-gate 88*7c478bd9Sstevel@tonic-gate /* execflgs */ 89*7c478bd9Sstevel@tonic-gate int exitval; 90*7c478bd9Sstevel@tonic-gate int retval; 91*7c478bd9Sstevel@tonic-gate BOOL execbrk; 92*7c478bd9Sstevel@tonic-gate int loopcnt; 93*7c478bd9Sstevel@tonic-gate int breakcnt; 94*7c478bd9Sstevel@tonic-gate int funcnt; 95*7c478bd9Sstevel@tonic-gate int eflag; 96*7c478bd9Sstevel@tonic-gate /* 97*7c478bd9Sstevel@tonic-gate * The following flag is set if you try to exit with stopped jobs. 98*7c478bd9Sstevel@tonic-gate * On the second try the exit will succeed. 99*7c478bd9Sstevel@tonic-gate */ 100*7c478bd9Sstevel@tonic-gate int tried_to_exit; 101*7c478bd9Sstevel@tonic-gate /* 102*7c478bd9Sstevel@tonic-gate * The following flag is set to true if /usr/ucb is found in the path 103*7c478bd9Sstevel@tonic-gate * before /usr/bin. This value is checked when executing the echo and test 104*7c478bd9Sstevel@tonic-gate * built-in commands. If true, the command behaves as in BSD systems. 105*7c478bd9Sstevel@tonic-gate */ 106*7c478bd9Sstevel@tonic-gate int ucb_builtins; 107*7c478bd9Sstevel@tonic-gate 108*7c478bd9Sstevel@tonic-gate /* The following stuff is from stak.h */ 109*7c478bd9Sstevel@tonic-gate 110*7c478bd9Sstevel@tonic-gate unsigned char *stakbas; 111*7c478bd9Sstevel@tonic-gate unsigned char *staktop; 112*7c478bd9Sstevel@tonic-gate unsigned char *stakbot = 0; 113*7c478bd9Sstevel@tonic-gate struct blk *stakbsy; 114*7c478bd9Sstevel@tonic-gate unsigned char *brkend; 115