17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 77c478bd9Sstevel@tonic-gate * with the License. 87c478bd9Sstevel@tonic-gate * 97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 127c478bd9Sstevel@tonic-gate * and limitations under the License. 137c478bd9Sstevel@tonic-gate * 147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 197c478bd9Sstevel@tonic-gate * 207c478bd9Sstevel@tonic-gate * CDDL HEADER END 217c478bd9Sstevel@tonic-gate */ 227c478bd9Sstevel@tonic-gate /* 23*965005c8Schin * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*965005c8Schin * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 277c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate /* 307c478bd9Sstevel@tonic-gate * UNIX shell 317c478bd9Sstevel@tonic-gate */ 327c478bd9Sstevel@tonic-gate 337c478bd9Sstevel@tonic-gate #include <setjmp.h> 347c478bd9Sstevel@tonic-gate #include "mode.h" 357c478bd9Sstevel@tonic-gate #include "name.h" 367c478bd9Sstevel@tonic-gate #include <sys/param.h> 377c478bd9Sstevel@tonic-gate #ifndef NOFILE 387c478bd9Sstevel@tonic-gate #define NOFILE 20 397c478bd9Sstevel@tonic-gate #endif 407c478bd9Sstevel@tonic-gate /* temp files and io */ 417c478bd9Sstevel@tonic-gate 427c478bd9Sstevel@tonic-gate int output = 2; 437c478bd9Sstevel@tonic-gate int ioset; 447c478bd9Sstevel@tonic-gate struct ionod *iotemp; /* files to be deleted sometime */ 457c478bd9Sstevel@tonic-gate struct ionod *fiotemp; /* function files to be deleted sometime */ 467c478bd9Sstevel@tonic-gate struct ionod *iopend; /* documents waiting to be read at NL */ 477c478bd9Sstevel@tonic-gate struct fdsave fdmap[NOFILE]; 487c478bd9Sstevel@tonic-gate 497c478bd9Sstevel@tonic-gate /* substitution */ 507c478bd9Sstevel@tonic-gate int dolc; 517c478bd9Sstevel@tonic-gate unsigned char **dolv; 527c478bd9Sstevel@tonic-gate struct dolnod *argfor; 537c478bd9Sstevel@tonic-gate struct argnod *gchain; 547c478bd9Sstevel@tonic-gate 557c478bd9Sstevel@tonic-gate 567c478bd9Sstevel@tonic-gate /* name tree and words */ 577c478bd9Sstevel@tonic-gate int wdval; 587c478bd9Sstevel@tonic-gate int wdnum; 597c478bd9Sstevel@tonic-gate int fndef; 607c478bd9Sstevel@tonic-gate int nohash; 617c478bd9Sstevel@tonic-gate struct argnod *wdarg; 627c478bd9Sstevel@tonic-gate int wdset; 637c478bd9Sstevel@tonic-gate BOOL reserv; 647c478bd9Sstevel@tonic-gate 657c478bd9Sstevel@tonic-gate /* special names */ 667c478bd9Sstevel@tonic-gate unsigned char *pcsadr; 677c478bd9Sstevel@tonic-gate unsigned char *pidadr; 687c478bd9Sstevel@tonic-gate unsigned char *cmdadr; 697c478bd9Sstevel@tonic-gate 707c478bd9Sstevel@tonic-gate /* transput */ 71*965005c8Schin int tmpout_offset; 72*965005c8Schin unsigned int serial; 737c478bd9Sstevel@tonic-gate unsigned peekc; 747c478bd9Sstevel@tonic-gate unsigned peekn; 757c478bd9Sstevel@tonic-gate unsigned char *comdiv; 767c478bd9Sstevel@tonic-gate long flags; 777c478bd9Sstevel@tonic-gate int rwait; /* flags read waiting */ 787c478bd9Sstevel@tonic-gate 797c478bd9Sstevel@tonic-gate /* error exits from various parts of shell */ 807c478bd9Sstevel@tonic-gate jmp_buf subshell; 817c478bd9Sstevel@tonic-gate jmp_buf errshell; 827c478bd9Sstevel@tonic-gate 837c478bd9Sstevel@tonic-gate /* fault handling */ 847c478bd9Sstevel@tonic-gate BOOL trapnote; 857c478bd9Sstevel@tonic-gate 867c478bd9Sstevel@tonic-gate /* execflgs */ 877c478bd9Sstevel@tonic-gate int exitval; 887c478bd9Sstevel@tonic-gate int retval; 897c478bd9Sstevel@tonic-gate BOOL execbrk; 907c478bd9Sstevel@tonic-gate int loopcnt; 917c478bd9Sstevel@tonic-gate int breakcnt; 927c478bd9Sstevel@tonic-gate int funcnt; 937c478bd9Sstevel@tonic-gate int eflag; 947c478bd9Sstevel@tonic-gate /* 957c478bd9Sstevel@tonic-gate * The following flag is set if you try to exit with stopped jobs. 967c478bd9Sstevel@tonic-gate * On the second try the exit will succeed. 977c478bd9Sstevel@tonic-gate */ 987c478bd9Sstevel@tonic-gate int tried_to_exit; 997c478bd9Sstevel@tonic-gate /* 1007c478bd9Sstevel@tonic-gate * The following flag is set to true if /usr/ucb is found in the path 1017c478bd9Sstevel@tonic-gate * before /usr/bin. This value is checked when executing the echo and test 1027c478bd9Sstevel@tonic-gate * built-in commands. If true, the command behaves as in BSD systems. 1037c478bd9Sstevel@tonic-gate */ 1047c478bd9Sstevel@tonic-gate int ucb_builtins; 1057c478bd9Sstevel@tonic-gate 1067c478bd9Sstevel@tonic-gate /* The following stuff is from stak.h */ 1077c478bd9Sstevel@tonic-gate 1087c478bd9Sstevel@tonic-gate unsigned char *stakbas; 1097c478bd9Sstevel@tonic-gate unsigned char *staktop; 1107c478bd9Sstevel@tonic-gate unsigned char *stakbot = 0; 1117c478bd9Sstevel@tonic-gate struct blk *stakbsy; 1127c478bd9Sstevel@tonic-gate unsigned char *brkend; 113